libstdc++-v3/ChangeLog

   1 2023-12-21  Arsen Arsenović  <arsen@aarsen.me>
   2
   3         * include/Makefile.am: Install std/generator, bits/elements_of.h
   4         as freestanding.
   5         * include/Makefile.in: Regenerate.
   6         * include/bits/version.def: Add __cpp_lib_generator.
   7         * include/bits/version.h: Regenerate.
   8         * include/precompiled/stdc++.h: Include <generator>.
   9         * include/std/ranges: Include bits/elements_of.h
  10         * include/bits/elements_of.h: New file.
  11         * include/std/generator: New file.
  12         * testsuite/24_iterators/range_generators/01.cc: New test.
  13         * testsuite/24_iterators/range_generators/02.cc: New test.
  14         * testsuite/24_iterators/range_generators/copy.cc: New test.
  15         * testsuite/24_iterators/range_generators/except.cc: New test.
  16         * testsuite/24_iterators/range_generators/synopsis.cc: New test.
  17         * testsuite/24_iterators/range_generators/subrange.cc: New test.
  18
  19 2023-12-21  Arsen Arsenović  <arsen@aarsen.me>
  20
  21         * include/bits/ranges_util.h: Add missing <bits/invoke.h>
  22         include.
  23
  24 2023-12-18  Patrick Palka  <ppalka@redhat.com>
  25
  26         PR libstdc++/112802
  27         PR libstdc++/113068
  28         * include/std/ranges (__detail::_To::operator()): Add constraints.
  29         (__detail::_To2::operator()): Likewise.
  30         * testsuite/std/ranges/conv/1.cc (test_sfinae): New test.
  31         (test_composition): New test.
  32
  33 2023-12-16  Jonathan Wakely  <jwakely@redhat.com>
  34
  35         * src/c++23/print.cc (__open_terminal(FILE*)): Avoid fileno
  36         macro.
  37
  38 2023-12-16  H.J. Lu  <hjl.tools@gmail.com>
  39
  40         * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt:
  41         Updated.
  42
  43 2023-12-16  Ken Matsui  <kmatsui@gcc.gnu.org>
  44
  45         * include/std/type_traits (remove_pointer): Use __remove_pointer
  46         built-in trait.
  47
  48 2023-12-16  Ken Matsui  <kmatsui@gcc.gnu.org>
  49
  50         * include/std/type_traits (is_object): Use __is_object built-in
  51         trait.
  52         (is_object_v): Likewise.
  53
  54 2023-12-16  Ken Matsui  <kmatsui@gcc.gnu.org>
  55
  56         * include/std/type_traits (is_function): Use __is_function
  57         built-in trait.
  58         (is_function_v): Likewise. Optimize its implementation.  Move
  59         this under is_const_v as this depends on is_const_v.
  60
  61 2023-12-16  Ken Matsui  <kmatsui@gcc.gnu.org>
  62
  63         * include/std/type_traits (is_reference): Use __is_reference
  64         built-in trait.
  65         (is_reference_v): Likewise.
  66
  67 2023-12-16  Ken Matsui  <kmatsui@gcc.gnu.org>
  68
  69         * include/std/type_traits (is_member_object_pointer): Use
  70         __is_member_object_pointer built-in trait.
  71         (is_member_object_pointer_v): Likewise.
  72
  73 2023-12-16  Ken Matsui  <kmatsui@gcc.gnu.org>
  74
  75         * include/std/type_traits (is_member_function_pointer): Use
  76         __is_member_function_pointer built-in trait.
  77         (is_member_function_pointer_v): Likewise.
  78
  79 2023-12-16  Ken Matsui  <kmatsui@gcc.gnu.org>
  80
  81         * include/std/type_traits (is_member_pointer): Use
  82         __is_member_pointer built-in trait.
  83         (is_member_pointer_v): Likewise.
  84
  85 2023-12-16  Ken Matsui  <kmatsui@gcc.gnu.org>
  86
  87         * include/std/type_traits (is_scoped_enum): Use
  88         __is_scoped_enum built-in trait.
  89         (is_scoped_enum_v): Likewise.
  90
  91 2023-12-16  Ken Matsui  <kmatsui@gcc.gnu.org>
  92
  93         * include/std/type_traits (is_bounded_array_v): Use
  94         __is_bounded_array built-in trait.
  95
  96 2023-12-16  Ken Matsui  <kmatsui@gcc.gnu.org>
  97
  98         * include/std/type_traits (is_array): Use __is_array built-in
  99         trait.
 100         (is_array_v): Likewise.
 101
 102 2023-12-15  Jonathan Wakely  <jwakely@redhat.com>
 103
 104         * src/c++23/print.cc (__write_to_terminal) [_WIN32]: If handle
 105         does not refer to the console then just write to it using normal
 106         file I/O.
 107         * testsuite/27_io/print/2.cc (as_printed_to_terminal): Print
 108         error message on failure.
 109         (test_utf16_transcoding): Adjust for as_printed_to_terminal
 110         modifying its argument.
 111
 112 2023-12-15  Jonathan Wakely  <jwakely@redhat.com>
 113
 114         * include/std/ostream (vprint_unicode) [_WIN32]: Use RAII guard.
 115         (vprint_unicode) [!_WIN32]: Just call vprint_nonunicode.
 116         * include/std/print (vprint_unicode) [!_WIN32]: Likewise.
 117
 118 2023-12-15  Jonathan Wakely  <jwakely@redhat.com>
 119
 120         * include/std/ostream (vprint_nonunicode, vprint_unicode): Do
 121         not insert padding.
 122         * testsuite/27_io/basic_ostream/print/1.cc: Adjust expected
 123         behaviour.
 124
 125 2023-12-14  Jonathan Wakely  <jwakely@redhat.com>
 126
 127         PR libstdc++/107760
 128         * include/Makefile.am: Add new header.
 129         * include/Makefile.in: Regenerate.
 130         * include/bits/version.def (__cpp_lib_print): Define.
 131         * include/bits/version.h: Regenerate.
 132         * include/std/format (__literal_encoding_is_utf8): New function.
 133         (_Seq_sink::view()): New member function.
 134         * include/std/ostream (vprintf_nonunicode, vprintf_unicode)
 135         (print, println): New functions.
 136         * include/std/print: New file.
 137         * src/c++23/Makefile.am: Add new source file.
 138         * src/c++23/Makefile.in: Regenerate.
 139         * src/c++23/print.cc: New file.
 140         * testsuite/27_io/basic_ostream/print/1.cc: New test.
 141         * testsuite/27_io/print/1.cc: New test.
 142         * testsuite/27_io/print/2.cc: New test.
 143
 144 2023-12-14  Jonathan Wakely  <jwakely@redhat.com>
 145
 146         * acinclude.m4 (GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES): Add
 147         missing header to configure test. Check correct variable.
 148         * config/io/basic_file_stdio.cc (__basic_file<char>::native_handle):
 149         Fix typo.
 150         * configure: Regenerate.
 151         * testsuite/27_io/basic_filebuf/native_handle/char/1.cc: Do not
 152         call CloseHandle on the native handle.
 153         * testsuite/27_io/basic_filebuf/native_handle/wchar_t/1.cc:
 154         Likewise.
 155
 156 2023-12-14  Jonathan Wakely  <jwakely@redhat.com>
 157
 158         * include/std/format (_Seq_sink): Fix missing argument in
 159         discarded statement. Add comments, likely/unlikely attributes
 160         and debug assertions as sanity checks.
 161
 162 2023-12-14  Jonathan Wakely  <jwakely@redhat.com>
 163
 164         * testsuite/27_io/objects/char/2.cc: Use dg-output.
 165         * testsuite/27_io/objects/wchar_t/2.cc: Use dg-output.
 166
 167 2023-12-14  Jonathan Wakely  <jwakely@redhat.com>
 168
 169         * include/bits/chrono_io.h (__formatter_chrono::_M_S): Fix order
 170         of arguments to std::format_to.
 171         * testsuite/20_util/duration/io.cc: Test subsecond duration with
 172         floating-point rep.
 173
 174 2023-12-14  Jonathan Wakely  <jwakely@redhat.com>
 175
 176         PR libstdc++/109536
 177         * include/bits/c++config (__glibcxx_constexpr_assert): Remove
 178         macro.
 179         * include/bits/stl_algobase.h (__niter_base, __copy_move_a)
 180         (__copy_move_backward_a, __fill_a, __fill_n_a, __equal_aux)
 181         (__lexicographical_compare_aux): Add constexpr to overloads for
 182         debug mode iterators.
 183         * include/debug/helper_functions.h (__unsafe): Add constexpr.
 184         * include/debug/macros.h (_GLIBCXX_DEBUG_VERIFY_COND_AT): Remove
 185         macro, folding it into ...
 186         (_GLIBCXX_DEBUG_VERIFY_AT_F): ... here. Do not use
 187         __glibcxx_constexpr_assert.
 188         * include/debug/safe_base.h (_Safe_iterator_base): Add constexpr
 189         to some member functions. Omit attaching, detaching and checking
 190         operations during constant evaluation.
 191         * include/debug/safe_container.h (_Safe_container): Likewise.
 192         * include/debug/safe_iterator.h (_Safe_iterator): Likewise.
 193         * include/debug/safe_iterator.tcc (__niter_base, __copy_move_a)
 194         (__copy_move_backward_a, __fill_a, __fill_n_a, __equal_aux)
 195         (__lexicographical_compare_aux): Add constexpr.
 196         * include/debug/vector (_Safe_vector, vector): Add constexpr.
 197         Omit safe iterator operations during constant evaluation.
 198         * testsuite/23_containers/vector/bool/capacity/constexpr.cc:
 199         Remove dg-xfail-if for debug mode.
 200         * testsuite/23_containers/vector/bool/cmp_c++20.cc: Likewise.
 201         * testsuite/23_containers/vector/bool/cons/constexpr.cc:
 202         Likewise.
 203         * testsuite/23_containers/vector/bool/element_access/1.cc:
 204         Likewise.
 205         * testsuite/23_containers/vector/bool/element_access/constexpr.cc:
 206         Likewise.
 207         * testsuite/23_containers/vector/bool/modifiers/assign/constexpr.cc:
 208         Likewise.
 209         * testsuite/23_containers/vector/bool/modifiers/constexpr.cc:
 210         Likewise.
 211         * testsuite/23_containers/vector/bool/modifiers/swap/constexpr.cc:
 212         Likewise.
 213         * testsuite/23_containers/vector/capacity/constexpr.cc:
 214         Likewise.
 215         * testsuite/23_containers/vector/cmp_c++20.cc: Likewise.
 216         * testsuite/23_containers/vector/cons/constexpr.cc: Likewise.
 217         * testsuite/23_containers/vector/data_access/constexpr.cc:
 218         Likewise.
 219         * testsuite/23_containers/vector/element_access/constexpr.cc:
 220         Likewise.
 221         * testsuite/23_containers/vector/modifiers/assign/constexpr.cc:
 222         Likewise.
 223         * testsuite/23_containers/vector/modifiers/constexpr.cc:
 224         Likewise.
 225         * testsuite/23_containers/vector/modifiers/swap/constexpr.cc:
 226         Likewise.
 227         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
 228         Adjust dg-error line number.
 229
 230 2023-12-13  Jonathan Wakely  <jwakely@redhat.com>
 231
 232         * include/bits/chrono_io.h (__formatter_chrono::_M_C_y_Y): Do
 233         not round century down for %Y formats.
 234
 235 2023-12-12  Jonathan Wakely  <jwakely@redhat.com>
 236
 237         * include/std/format (__do_vformat_to): Handle char separately
 238         from other integral types.
 239         * testsuite/std/format/functions/format.cc: Check for expected
 240         output for char and bool arguments.
 241         * testsuite/std/format/string.cc: Check that 0 filling is
 242         rejected for character and string formats.
 243
 244 2023-12-12  Jonathan Wakely  <jwakely@redhat.com>
 245
 246         * include/bits/chrono_io.h (__formatter_chrono::_M_C_y_Y): Fix
 247         rounding for negative centuries.
 248         * testsuite/std/time/year/io.cc: Check %C for negative years.
 249
 250 2023-12-12  Jonathan Wakely  <jwakely@redhat.com>
 251
 252         * src/c++11/Makefile.am: Remove redundant -std=gnu++11 flags.
 253         * src/c++11/Makefile.in: Regenerate.
 254
 255 2023-12-09  Jonathan Wakely  <jwakely@redhat.com>
 256
 257         PR libstdc++/111826
 258         * include/bits/version.def (format): Update value.
 259         * include/bits/version.h: Regenerate.
 260         * testsuite/std/format/functions/format.cc:
 261
 262 2023-12-09  Jonathan Wakely  <jwakely@redhat.com>
 263
 264         PR libstdc++/112876
 265         * include/std/ranges (ranges::to): Do not try to use an iterator
 266         returned by the container's emplace or insert member functions.
 267         * testsuite/std/ranges/conv/1.cc (Cont4::emplace, Cont4::insert):
 268         Use the iterator parameter. Do not return an iterator.
 269
 270 2023-12-07  Patrick Palka  <ppalka@redhat.com>
 271
 272         * include/std/ranges (__detail::_ToClosure): Replace with ...
 273         (__detail::_To): ... this.
 274         (__detail::_ToClosure2): Replace with ...
 275         (__detail::To2): ... this.
 276         (to): Simplify using the existing _Partial range adaptor
 277         closure object.
 278
 279 2023-12-07  Jonathan Wakely  <jwakely@redhat.com>
 280
 281         * include/std/format (_Iter_sink<charT, contiguous_iterator>):
 282         Remove uint64_t local type.
 283
 284 2023-12-07  Jonathan Wakely  <jwakely@redhat.com>
 285
 286         * include/bits/atomic_wait.h: Include <cstdint> instead of
 287         <stdint.h>.
 288
 289 2023-12-07  Jonathan Wakely  <jwakely@redhat.com>
 290
 291         PR libstdc++/112882
 292         * include/bits/c++config (__is_constant_evaluated): Add
 293         always_inline attribute.
 294         (_GLIBCXX_DO_ASSERT): Remove macro.
 295         (__glibcxx_assert): Define separately for assertions-enabled and
 296         constexpr-only cases.
 297
 298 2023-12-07  Alexandre Oliva  <oliva@adacore.com>
 299
 300         PR libstdc++/112858
 301         * config/os/gnu-linux/os_defines.h
 302         (_GLIBCXX_MAY_HAVE___CXA_THREAD_ATEXIT_IMPL): Define.
 303         * libsupc++/atexit_thread.cc [__GXX_WEAK__ &&
 304         _GLIBCXX_MAY_HAVE___CXA_THREAD_ATEXIT_IMPL]
 305         (__cxa_thread_atexit): Add dynamic detection of
 306         __cxa_thread_atexit_impl.
 307
 308 2023-12-06  Jason Merrill  <jason@redhat.com>
 309
 310         DR 532
 311         PR c++/53499
 312         * testsuite/23_containers/vector/ext_pointer/types/1.cc
 313         * testsuite/23_containers/vector/ext_pointer/types/2.cc
 314         (N::operator-): Make less specialized.
 315
 316 2023-12-06  Alexandre Oliva  <oliva@gnu.org>
 317
 318         Revert:
 319         2023-12-02  Alexandre Oliva  <oliva@adacore.com>
 320
 321         * libsupc++/atexit_thread.cc [__GXX_WEAK__]: Add dynamic
 322         detection of __cxa_thread_atexit_impl.
 323
 324 2023-12-05  Jonathan Wakely  <jwakely@redhat.com>
 325
 326         PR libstdc++/111948
 327         * include/bits/ranges_util.h (subrange): Add constructor to
 328         _Size to aoid setting member in constructor.
 329         * testsuite/std/ranges/subrange/111948.cc: New test.
 330
 331 2023-12-05  Jonathan Wakely  <jwakely@redhat.com>
 332
 333         * include/std/ranges (__detail::__container_insertable): Remove.
 334         (__detail::__container_inserter): Remove.
 335         (ranges::to): Use emplace_back or emplace, as per LWG 4016.
 336         * testsuite/std/ranges/conv/1.cc (Cont4, test_2_1_4): Check for
 337         use of emplace_back and emplace.
 338
 339 2023-12-05  Jonathan Wakely  <jwakely@redhat.com>
 340
 341         * include/bits/c++config (__glibcxx_assert_fail): Declare even
 342         when assertions are not enabled.
 343         (__glibcxx_constexpr_assert): Remove macro.
 344         (__glibcxx_assert_impl): Remove macro.
 345         (_GLIBCXX_ASSERT_FAIL): New macro.
 346         (_GLIBCXX_DO_ASSERT): New macro.
 347         (__glibcxx_assert): Simplify to a single definition that works
 348         at runtime and during constant evaluation.
 349         * testsuite/21_strings/basic_string_view/element_access/char/back_constexpr_neg.cc:
 350         Adjust expected errors.
 351         * testsuite/21_strings/basic_string_view/element_access/char/constexpr_neg.cc:
 352         Likewise.
 353         * testsuite/21_strings/basic_string_view/element_access/char/front_constexpr_neg.cc:
 354         Likewise.
 355         * testsuite/21_strings/basic_string_view/element_access/wchar_t/back_constexpr_neg.cc:
 356         Likewise.
 357         * testsuite/21_strings/basic_string_view/element_access/wchar_t/constexpr_neg.cc:
 358         Likewise.
 359         * testsuite/21_strings/basic_string_view/element_access/wchar_t/front_constexpr_neg.cc:
 360         Likewise.
 361         * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/debug.cc:
 362         Likewise.
 363         * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/debug.cc:
 364         Likewise.
 365         * testsuite/23_containers/span/back_neg.cc: Likewise.
 366         * testsuite/23_containers/span/front_neg.cc: Likewise.
 367         * testsuite/23_containers/span/index_op_neg.cc: Likewise.
 368         * testsuite/26_numerics/lcm/105844.cc: Likewise.
 369
 370 2023-12-05  Jonathan Wakely  <jwakely@redhat.com>
 371
 372         PR libstdc++/112832
 373         * include/std/format (formatter::set_debug_format): Ensure this
 374         member is defined conditionally for all specializations.
 375         * testsuite/std/format/formatter/112832.cc: New test.
 376
 377 2023-12-05  Will Hawkins  <hawkinsw@obs.cr>
 378             Jonathan Wakely  <jwakely@redhat.com>
 379
 380         * testsuite/20_util/smartptr.adapt/inout_ptr/2.cc: Add check
 381         for LWG Issue 3897.
 382
 383 2023-12-05  Marek Polacek  <polacek@redhat.com>
 384
 385         PR c++/107687
 386         PR c++/110997
 387         * testsuite/18_support/comparisons/categories/zero_neg.cc: Add
 388         dg-prune-output.
 389         * testsuite/std/format/string_neg.cc: Add dg-error.
 390
 391 2023-12-02  Alexandre Oliva  <oliva@adacore.com>
 392
 393         * libsupc++/atexit_thread.cc [__GXX_WEAK__]: Add dynamic
 394         detection of __cxa_thread_atexit_impl.
 395
 396 2023-12-01  Jason Merrill  <jason@redhat.com>
 397
 398         * include/std/bit: Avoid builtins in requires-clauses.
 399         * include/std/variant: Likewise.
 400
 401 2023-12-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 402
 403         * configure: Regenerate.
 404
 405 2023-11-30  Jonathan Wakely  <jwakely@redhat.com>
 406
 407         * include/std/ranges (__detail::__toable): Fix incorrect use of
 408         _Range instead of _Cont.
 409         (__detail::_ToClosure, __detail::_ToClosure2): Add missing
 410         constexpr specifier on constructors.
 411         * testsuite/std/ranges/conv/1.cc (_Cont, _Cont2, _Cont3): Remove
 412         unnecessary begin() and end() members.
 413         (test_constexpr): New function to check range adaptors are
 414         usable in constant expressions.
 415
 416 2023-11-29  Thomas Schwinge  <thomas@codesourcery.com>
 417
 418         * testsuite/23_containers/span/at.cc: Fix for '-fno-exceptions'
 419         configurations.
 420
 421 2023-11-28  Jonathan Wakely  <jwakely@redhat.com>
 422
 423         * include/bits/atomic_wait.h: Include <stdint.h>.
 424
 425 2023-11-28  Jonathan Wakely  <jwakely@redhat.com>
 426
 427         * include/bits/stl_uninitialized.h: Fix typo in comment.
 428
 429 2023-11-24  Jan Hubicka  <jh@suse.cz>
 430
 431         PR middle-end/109849
 432         * include/bits/stl_uninitialized.h (__relocate_a_1): Use memcpy instead
 433         of memmove.
 434
 435 2023-11-23  Jonathan Wakely  <jwakely@redhat.com>
 436
 437         PR libstdc++/111055
 438         * include/bits/ranges_base.h (from_range_t): Define new tag
 439         type.
 440         (from_range): Define new tag object.
 441         * include/bits/version.def (ranges_to_container): Define.
 442         * include/bits/version.h: Regenerate.
 443         * include/std/ranges (ranges::to): Define.
 444         * testsuite/std/ranges/conv/1.cc: New test.
 445         * testsuite/std/ranges/conv/2_neg.cc: New test.
 446         * testsuite/std/ranges/conv/version.cc: New test.
 447
 448 2023-11-23  Jonathan Wakely  <jwakely@redhat.com>
 449
 450         * testsuite/util/testsuite_allocator.h (uneq_allocator): Fix
 451         equality operator for heterogeneous comparisons.
 452
 453 2023-11-21  Jonathan Wakely  <jwakely@redhat.com>
 454
 455         * include/bits/version.def (freestanding_cstring): Add.
 456         * include/bits/version.h: Regenerate.
 457         * include/c_compatibility/string.h (strtok): Do not declare for
 458         C++26 freestanding.
 459         * include/c_global/cstring (strtok): Likewise.
 460         * testsuite/21_strings/headers/cstring/version.cc: New test.
 461
 462 2023-11-21  Jonathan Wakely  <jwakely@redhat.com>
 463
 464         * include/bits/version.def (freestanding_algorithm)
 465         (freestanding_array, freestanding_optional)
 466         (freestanding_string_view, freestanding_variant): Add.
 467         * include/bits/version.h: Regenerate.
 468         * include/std/algorithm (__glibcxx_want_freestanding_algorithm):
 469         Define.
 470         * include/std/array (__glibcxx_want_freestanding_array):
 471         Define.
 472         * include/std/optional (__glibcxx_want_freestanding_optional):
 473         Define.
 474         * include/std/string_view
 475         (__glibcxx_want_freestanding_string_view): Define.
 476         * include/std/variant (__glibcxx_want_freestanding_variant):
 477         Define.
 478         * testsuite/20_util/optional/version.cc: Add checks for
 479         __cpp_lib_freestanding_optional.
 480         * testsuite/20_util/variant/version.cc: Add checks for
 481         __cpp_lib_freestanding_variant.
 482         * testsuite/23_containers/array/tuple_interface/get_neg.cc:
 483         Adjust dg-error line numbers.
 484         * testsuite/21_strings/basic_string_view/requirements/version.cc:
 485         New test.
 486         * testsuite/23_containers/array/requirements/version.cc: New
 487         test.
 488         * testsuite/25_algorithms/fill_n/requirements/version.cc: New
 489         test.
 490         * testsuite/25_algorithms/swap_ranges/requirements/version.cc:
 491         New test.
 492
 493 2023-11-21  Jonathan Wakely  <jwakely@redhat.com>
 494
 495         * include/bits/version.def (freestanding_expected): New macro.
 496         (span): Add C++26 value.
 497         * include/bits/version.h: Regenerate.
 498         * include/std/expected (__glibcxx_want_freestanding_expected):
 499         Define.
 500         * include/std/span (span::at): New member function.
 501         * testsuite/20_util/expected/version.cc: Add checks for
 502         __cpp_lib_freestanding_expected.
 503         * testsuite/23_containers/span/2.cc: Moved to...
 504         * testsuite/23_containers/span/version.cc: ...here. Add checks
 505         for __cpp_lib_span in <span> as well as in <version>.
 506         * testsuite/23_containers/span/1.cc: Removed.
 507         * testsuite/23_containers/span/at.cc: New test.
 508
 509 2023-11-21  Jonathan Wakely  <jwakely@redhat.com>
 510
 511         * include/tr2/dynamic_bitset (dynamic_bitset): Pass zero and one
 512         characters to _M_copy_from_string.
 513         * testsuite/tr2/dynamic_bitset/string.cc: New test.
 514
 515 2023-11-21  Jonathan Wakely  <jwakely@redhat.com>
 516
 517         * doc/html/*: Regenerate.
 518         * doc/xml/faq.xml: Remove reference to buildstat.html pages.
 519         * doc/xml/manual/test.xml: Likewise
 520
 521 2023-11-21  Jan Hubicka  <jh@suse.cz>
 522
 523         PR libstdc++/110287
 524         PR middle-end/109811
 525         PR middle-end/109849
 526         * include/bits/stl_vector.h (_M_realloc_append): New member function.
 527         (push_back): Use it.
 528         * include/bits/vector.tcc: (emplace_back): Use it.
 529         (_M_realloc_insert): Let compiler know that new vector size is non-zero.
 530         (_M_realloc_append): New member function.
 531
 532 2023-11-18  Jonathan Wakely  <jwakely@redhat.com>
 533
 534         PR libstdc++/112607
 535         * include/std/format (basic_format_arg::_S_to_arg_type): Check
 536         value_type for basic_string_view and basic_string
 537         specializations.
 538         * testsuite/std/format/arguments/112607.cc: New test.
 539
 540 2023-11-18  Jonathan Wakely  <jwakely@redhat.com>
 541
 542         PR libstdc++/110801
 543         * include/std/format (_Sink_iter::_M_reserve): New member
 544         function.
 545         (_Sink::_Reservation): New nested class.
 546         (_Sink::_M_reserve, _Sink::_M_bump): New virtual functions.
 547         (_Seq_sink::_M_reserve, _Seq_sink::_M_bump): New virtual
 548         overrides.
 549         (_Iter_sink<O, ContigIter>::_M_reserve): Likewise.
 550         (__do_vformat_to): Use new functions to optimize "{}" case.
 551
 552 2023-11-17  Jonathan Wakely  <jwakely@redhat.com>
 553
 554         * config.h.in: Regenerate.
 555
 556 2023-11-17  Jonathan Wakely  <jwakely@redhat.com>
 557
 558         * include/Makefile.am: Add new header.
 559         * include/Makefile.in: Regenerate.
 560         * include/bits/version.def (saturation_arithmetic): Define.
 561         * include/bits/version.h: Regenerate.
 562         * include/std/numeric: Include new header.
 563         * include/bits/sat_arith.h: New file.
 564         * testsuite/26_numerics/saturation/add.cc: New test.
 565         * testsuite/26_numerics/saturation/cast.cc: New test.
 566         * testsuite/26_numerics/saturation/div.cc: New test.
 567         * testsuite/26_numerics/saturation/mul.cc: New test.
 568         * testsuite/26_numerics/saturation/sub.cc: New test.
 569         * testsuite/26_numerics/saturation/version.cc: New test.
 570
 571 2023-11-17  Jonathan Wakely  <jwakely@redhat.com>
 572
 573         * include/std/utility (in_range): Rename _Up parameter to _Res.
 574
 575 2023-11-17  Jonathan Wakely  <jwakely@redhat.com>
 576
 577         * include/bits/out_ptr.h: Add Doxygen comments. Remove a
 578         redundant preprocessor condition.
 579         * testsuite/20_util/smartptr.adapt/version.cc: New test.
 580
 581 2023-11-17  Jonathan Wakely  <jwakely@redhat.com>
 582
 583         * include/bits/chrono_io.h: Fix Doxygen markup.
 584
 585 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 586
 587         PR libstdc++/112564
 588         * include/std/stacktrace (formatter::format): Format according
 589         to format-spec.
 590         * include/std/thread (formatter::format): Use _Align_right as
 591         default.
 592         * testsuite/19_diagnostics/stacktrace/output.cc: Check
 593         fill-and-align handling. Change compile test to run.
 594         * testsuite/30_threads/thread/id/output.cc: Check fill-and-align
 595         handling.
 596
 597 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 598
 599         PR libstdc++/111667
 600         * include/Makefile.am: Add new header.
 601         * include/Makefile.in: Regenerate.
 602         * include/bits/out_ptr.h: New file.
 603         * include/bits/shared_ptr.h (__is_shared_ptr): Move definition
 604         to here ...
 605         * include/bits/shared_ptr_atomic.h (__is_shared_ptr): ... from
 606         here.
 607         * include/bits/shared_ptr_base.h (__shared_count): Declare
 608         out_ptr_t as a friend.
 609         (_Sp_counted_deleter, __shared_ptr): Likewise.
 610         * include/bits/unique_ptr.h (unique_ptr, unique_ptr<T[], D>):
 611         Declare out_ptr_t and inout_ptr_t as friends.
 612         (__is_unique_ptr): Define new variable template.
 613         * include/bits/version.def (out_ptr): Define.
 614         * include/bits/version.h: Regenerate.
 615         * include/std/memory: Include new header.
 616         * testsuite/20_util/smartptr.adapt/inout_ptr/1.cc: New test.
 617         * testsuite/20_util/smartptr.adapt/inout_ptr/2.cc: New test.
 618         * testsuite/20_util/smartptr.adapt/inout_ptr/shared_ptr_neg.cc:
 619         New test.
 620         * testsuite/20_util/smartptr.adapt/inout_ptr/void_ptr.cc: New
 621         test.
 622         * testsuite/20_util/smartptr.adapt/out_ptr/1.cc: New test.
 623         * testsuite/20_util/smartptr.adapt/out_ptr/2.cc: New test.
 624         * testsuite/20_util/smartptr.adapt/out_ptr/shared_ptr_neg.cc:
 625         New test.
 626         * testsuite/20_util/smartptr.adapt/out_ptr/void_ptr.cc: New
 627         test.
 628
 629 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 630
 631         * include/bits/algorithmfwd.h: Do not define standard feature
 632         test macro here.
 633         * include/bits/align.h: Likewise. Test internal macros instead
 634         of standard macros.
 635         * include/bits/alloc_traits.h: Likewise.
 636         * include/bits/allocator.h: Likewise.
 637         * include/bits/atomic_base.h: Likewise.
 638         * include/bits/atomic_timed_wait.h: Likewise.
 639         * include/bits/atomic_wait.h: Likewise.
 640         * include/bits/basic_string.h: Likewise.
 641         * include/bits/basic_string.tcc: Likewise.
 642         * include/bits/char_traits.h: Likewise.
 643         * include/bits/chrono.h: Likewise.
 644         * include/bits/cow_string.h: Likewise.
 645         * include/bits/forward_list.h: Likewise.
 646         * include/bits/hashtable.h: Likewise.
 647         * include/bits/ios_base.h: Likewise.
 648         * include/bits/memory_resource.h: Likewise.
 649         * include/bits/move.h: Likewise.
 650         * include/bits/move_only_function.h: Likewise.
 651         * include/bits/node_handle.h: Likewise.
 652         * include/bits/ptr_traits.h: Likewise.
 653         * include/bits/range_access.h: Likewise.
 654         * include/bits/ranges_algo.h: Likewise.
 655         * include/bits/ranges_cmp.h: Likewise.
 656         * include/bits/ranges_util.h: Likewise.
 657         * include/bits/semaphore_base.h: Likewise.
 658         * include/bits/shared_ptr.h: Likewise.
 659         * include/bits/shared_ptr_atomic.h: Likewise.
 660         * include/bits/shared_ptr_base.h: Likewise.
 661         * include/bits/stl_algo.h: Likewise.
 662         * include/bits/stl_algobase.h: Likewise.
 663         * include/bits/stl_function.h: Likewise.
 664         * include/bits/stl_iterator.h: Likewise.
 665         * include/bits/stl_list.h: Likewise.
 666         * include/bits/stl_map.h: Likewise.
 667         * include/bits/stl_pair.h: Likewise.
 668         * include/bits/stl_queue.h: Likewise.
 669         * include/bits/stl_stack.h: Likewise.
 670         * include/bits/stl_tree.h: Likewise.
 671         * include/bits/stl_uninitialized.h: Likewise.
 672         * include/bits/stl_vector.h: Likewise.
 673         * include/bits/unique_ptr.h: Likewise.
 674         * include/bits/unordered_map.h: Likewise.
 675         * include/bits/uses_allocator_args.h: Likewise.
 676         * include/bits/utility.h: Likewise.
 677         * include/bits/erase_if.h: Add comment.
 678         * include/std/algorithm: Define standard feature test macros
 679         here.
 680         * include/std/atomic: Likewise.
 681         * include/std/array: Likewise.
 682         * include/std/chrono: Likewise.
 683         * include/std/condition_variable: Likewise.
 684         * include/std/deque: Likewise.
 685         * include/std/format: Likewise.
 686         * include/std/functional: Likewise.
 687         * include/std/forward_list: Likewise.
 688         * include/std/ios: Likewise.
 689         * include/std/iterator: Likewise.
 690         * include/std/list: Likewise.
 691         * include/std/map: Likewise.
 692         * include/std/memory: Likewise.
 693         * include/std/numeric: Likewise.
 694         * include/std/queue: Likewise.
 695         * include/std/ranges: Likewise.
 696         * include/std/regex: Likewise.
 697         * include/std/set: Likewise.
 698         * include/std/stack: Likewise.
 699         * include/std/stop_token: Likewise.
 700         * include/std/string: Likewise.
 701         * include/std/string_view:
 702         * include/std/tuple: Likewise.
 703         * include/std/unordered_map:
 704         * include/std/unordered_set:
 705         * include/std/utility: Likewise.
 706         * include/std/vector: Likewise.
 707         * include/std/scoped_allocator: Query internal macros instead of
 708         standard macros.
 709
 710 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 711
 712         * testsuite/18_support/byte/requirements.cc: Disable PCH.
 713         * testsuite/18_support/destroying_delete.cc: Likewise.
 714         * testsuite/18_support/source_location/1.cc: Likewise.
 715         * testsuite/18_support/source_location/version.cc: Likewise.
 716         * testsuite/18_support/type_info/constexpr.cc: Likewise.
 717         * testsuite/18_support/uncaught_exceptions/uncaught_exceptions.cc:
 718         Likewise.
 719         * testsuite/19_diagnostics/stacktrace/output.cc: Likewise.
 720         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Likewise.
 721         * testsuite/19_diagnostics/stacktrace/version.cc: Likewise.
 722         * testsuite/20_util/addressof/requirements/constexpr.cc:
 723         Likewise.
 724         * testsuite/20_util/allocator_traits/header-2.cc: Likewise.
 725         * testsuite/20_util/allocator_traits/header.cc: Likewise.
 726         * testsuite/20_util/as_const/1.cc: Likewise. Likewise.
 727         * testsuite/20_util/bitset/cons/constexpr_c++23.cc: Likewise.
 728         * testsuite/20_util/bitset/version.cc: Likewise.
 729         * testsuite/20_util/duration/arithmetic/constexpr_c++17.cc:
 730         Likewise.
 731         * testsuite/20_util/duration_cast/rounding.cc: Likewise.
 732         * testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
 733         Likewise.
 734         * testsuite/20_util/exchange/constexpr.cc: Likewise.
 735         * testsuite/20_util/expected/synopsis.cc: Likewise.
 736         * testsuite/20_util/expected/version.cc: Likewise.
 737         * testsuite/20_util/function_objects/bind_front/1.cc: Likewise.
 738         * testsuite/20_util/function_objects/bind_front/2.cc: Likewise.
 739         * testsuite/20_util/function_objects/invoke/3.cc: Likewise.
 740         * testsuite/20_util/function_objects/invoke/4.cc: Likewise.
 741         * testsuite/20_util/function_objects/invoke/constexpr.cc:
 742         Likewise.
 743         * testsuite/20_util/function_objects/invoke/version.cc:
 744         Likewise.
 745         * testsuite/20_util/function_objects/searchers.cc: Likewise.
 746         * testsuite/20_util/integer_comparisons/1.cc: Likewise.
 747         * testsuite/20_util/integer_comparisons/2.cc: Likewise.
 748         * testsuite/20_util/is_bounded_array/value.cc: Likewise.
 749         * testsuite/20_util/is_layout_compatible/value.cc: Likewise.
 750         * testsuite/20_util/is_layout_compatible/version.cc: Likewise.
 751         * testsuite/20_util/is_nothrow_swappable/requirements/explicit_instantiation.cc:
 752         Likewise.
 753         * testsuite/20_util/is_nothrow_swappable/requirements/typedefs.cc:
 754         Likewise.
 755         * testsuite/20_util/is_nothrow_swappable/value.cc: Likewise.
 756         * testsuite/20_util/is_nothrow_swappable/value.h: Likewise.
 757         * testsuite/20_util/is_nothrow_swappable_with/requirements/explicit_instantiation.cc:
 758         Remove redundant checks already tested elsewhere.
 759         * testsuite/20_util/is_nothrow_swappable_with/requirements/typedefs.cc:
 760         Likewise.
 761         * testsuite/20_util/is_nothrow_swappable_with/value.cc: Disable
 762         PCH.
 763         * testsuite/20_util/is_pointer_interconvertible/value.cc:
 764         Likewise.
 765         * testsuite/20_util/is_pointer_interconvertible/version.cc:
 766         Likewise.
 767         * testsuite/20_util/is_scoped_enum/value.cc: Likewise.
 768         * testsuite/20_util/is_scoped_enum/version.cc: Likewise.
 769         * testsuite/20_util/is_swappable/requirements/explicit_instantiation.cc:
 770         Remove redundant checks already tested elsewhere.
 771         * testsuite/20_util/is_swappable/requirements/typedefs.cc:
 772         Remove redundant checks already tested elsewhere.
 773         * testsuite/20_util/is_swappable/value.cc: Disable PCH.
 774         * testsuite/20_util/is_swappable/value.h: Reorder headers.
 775         * testsuite/20_util/is_swappable_with/requirements/explicit_instantiation.cc:
 776         Remove redundant checks already tested elsewhere.
 777         * testsuite/20_util/is_swappable_with/requirements/typedefs.cc:
 778         Remove redundant checks already tested elsewhere.
 779         * testsuite/20_util/is_swappable_with/value.cc: Disable PCH.
 780         * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
 781         * testsuite/20_util/move_only_function/cons.cc: Likewise.
 782         * testsuite/20_util/move_only_function/version.cc: Likewise.
 783         * testsuite/20_util/optional/monadic/and_then.cc: Likewise.
 784         * testsuite/20_util/optional/requirements.cc: Likewise.
 785         * testsuite/20_util/optional/version.cc: Likewise.
 786         * testsuite/20_util/owner_less/void.cc: Likewise.
 787         * testsuite/20_util/reference_from_temporary/value.cc: Likewise.
 788         * testsuite/20_util/reference_from_temporary/version.cc:
 789         Likewise.
 790         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
 791         Likewise.
 792         * testsuite/20_util/shared_ptr/creation/array.cc: Likewise.
 793         * testsuite/20_util/shared_ptr/creation/overwrite.cc: Likewise.
 794         * testsuite/20_util/shared_ptr/creation/version.cc: Likewise.
 795         * testsuite/20_util/time_point_cast/rounding.cc: Likewise.
 796         * testsuite/20_util/to_chars/constexpr.cc: Likewise.
 797         * testsuite/20_util/to_chars/result.cc: Likewise.
 798         * testsuite/20_util/to_chars/version.cc: Likewise.
 799         * testsuite/20_util/to_underlying/1.cc: Likewise.
 800         * testsuite/20_util/to_underlying/version.cc: Likewise.
 801         * testsuite/20_util/tuple/apply/1.cc: Likewise.
 802         * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc:
 803         Likewise.
 804         * testsuite/20_util/tuple/make_from_tuple/1.cc: Likewise.
 805         * testsuite/20_util/tuple/p2321r2.cc: Likewise.
 806         * testsuite/20_util/tuple/tuple_element_t.cc: Likewise.
 807         * testsuite/20_util/unique_ptr/cons/constexpr_c++20.cc:
 808         Likewise.
 809         * testsuite/20_util/unique_ptr/creation/for_overwrite.cc:
 810         Likewise.
 811         * testsuite/20_util/unreachable/1.cc: Likewise.
 812         * testsuite/20_util/unreachable/version.cc: Likewise.
 813         * testsuite/20_util/unwrap_reference/1.cc: Likewise.
 814         * testsuite/20_util/unwrap_reference/3.cc: Likewise.
 815         * testsuite/20_util/variant/constexpr.cc: Likewise.
 816         * testsuite/20_util/variant/version.cc: Likewise.
 817         * testsuite/20_util/variant/visit_inherited.cc: Likewise.
 818         * testsuite/20_util/void_t/1.cc: Likewise.
 819         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
 820         Likewise.
 821         * testsuite/21_strings/basic_string/cons/char/constexpr.cc:
 822         Likewise.
 823         * testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc:
 824         Likewise.
 825         * testsuite/21_strings/basic_string/erasure.cc: Likewise.
 826         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_float.cc:
 827         Likewise.
 828         * testsuite/21_strings/basic_string/numeric_conversions/version.cc:
 829         Likewise.
 830         * testsuite/21_strings/basic_string/version.cc: Likewise.
 831         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
 832         Likewise.
 833         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
 834         Likewise.
 835         * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
 836         Likewise.
 837         * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
 838         Likewise.
 839         * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
 840         Likewise.
 841         * testsuite/21_strings/char_traits/requirements/version.cc:
 842         Likewise.
 843         * testsuite/23_containers/array/comparison_operators/constexpr.cc:
 844         Likewise.
 845         * testsuite/23_containers/array/creation/1.cc: Likewise.
 846         * testsuite/23_containers/array/creation/2.cc: Likewise.
 847         * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
 848         Likewise.
 849         * testsuite/23_containers/array/requirements/constexpr_fill.cc:
 850         Likewise.
 851         * testsuite/23_containers/array/requirements/constexpr_iter.cc:
 852         Likewise.
 853         * testsuite/23_containers/deque/erasure.cc: Likewise.
 854         * testsuite/23_containers/forward_list/erasure.cc: Likewise.
 855         * testsuite/23_containers/list/erasure.cc: Likewise.
 856         * testsuite/23_containers/map/erasure.cc: Likewise.
 857         * testsuite/23_containers/queue/cons_from_iters.cc: Likewise.
 858         * testsuite/23_containers/set/erasure.cc: Likewise.
 859         * testsuite/23_containers/span/1.cc: Likewise.
 860         * testsuite/23_containers/span/2.cc: Likewise.
 861         * testsuite/23_containers/stack/cons_from_iters.cc: Likewise.
 862         * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
 863         * testsuite/23_containers/unordered_map/operations/1.cc:
 864         Likewise.
 865         * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
 866         * testsuite/23_containers/unordered_set/operations/1.cc:
 867         Likewise.
 868         * testsuite/23_containers/vector/cons/constexpr.cc: Likewise.
 869         * testsuite/23_containers/vector/erasure.cc: Likewise.
 870         * testsuite/23_containers/vector/requirements/version.cc:
 871         Likewise.
 872         * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
 873         * testsuite/25_algorithms/clamp/constexpr.cc: Likewise.
 874         * testsuite/25_algorithms/clamp/requirements/explicit_instantiation/1.cc:
 875         Remove redundant checks already tested elsewhere.
 876         * testsuite/25_algorithms/constexpr_macro.cc: Likewise.
 877         * testsuite/25_algorithms/cpp_lib_constexpr.cc: Likewise.
 878         * testsuite/25_algorithms/fold_left/1.cc: Likewise.
 879         * testsuite/25_algorithms/pstl/feature_test-2.cc: Likewise.
 880         * testsuite/25_algorithms/pstl/feature_test-3.cc: Likewise.
 881         * testsuite/25_algorithms/pstl/feature_test-4.cc: Likewise.
 882         * testsuite/25_algorithms/pstl/feature_test-5.cc: Likewise.
 883         * testsuite/25_algorithms/pstl/feature_test.cc: Likewise.
 884         * testsuite/26_numerics/bit/bit.byteswap/byteswap.cc: Likewise.
 885         * testsuite/26_numerics/bit/bit.byteswap/version.cc: Likewise.
 886         * testsuite/26_numerics/bit/bit.cast/bit_cast.cc: Likewise.
 887         * testsuite/26_numerics/bit/bit.cast/version.cc: Likewise.
 888         * testsuite/26_numerics/bit/header-2.cc: Likewise.
 889         * testsuite/26_numerics/bit/header.cc: Likewise.
 890         * testsuite/26_numerics/complex/1.cc: Likewise.
 891         * testsuite/26_numerics/complex/2.cc: Likewise.
 892         * testsuite/26_numerics/endian/2.cc: Likewise.
 893         * testsuite/26_numerics/endian/3.cc: Likewise.
 894         * testsuite/26_numerics/gcd/1.cc: Likewise.
 895         * testsuite/26_numerics/lcm/1.cc: Likewise.
 896         * testsuite/26_numerics/lerp/1.cc: Likewise.
 897         * testsuite/26_numerics/lerp/version.cc: Likewise.
 898         * testsuite/26_numerics/midpoint/integral.cc: Likewise.
 899         * testsuite/26_numerics/midpoint/version.cc: Likewise.
 900         * testsuite/26_numerics/numbers/1.cc: Likewise.
 901         * testsuite/26_numerics/numbers/2.cc: Likewise.
 902         * testsuite/27_io/basic_filebuf/native_handle/char/1.cc:
 903         Likewise.
 904         * testsuite/27_io/basic_filebuf/native_handle/version.cc:
 905         Likewise.
 906         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc:
 907         Likewise.
 908         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
 909         Likewise.
 910         * testsuite/27_io/basic_syncbuf/1.cc: Likewise.
 911         * testsuite/27_io/basic_syncbuf/2.cc: Likewise.
 912         * testsuite/27_io/basic_syncstream/1.cc: Likewise.
 913         * testsuite/27_io/basic_syncstream/2.cc: Likewise.
 914         * testsuite/27_io/spanstream/1.cc: Likewise.
 915         * testsuite/27_io/spanstream/version.cc: Likewise.
 916         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
 917         * testsuite/29_atomics/atomic/lock_free_aliases.cc: Likewise.
 918         * testsuite/29_atomics/atomic/wait_notify/1.cc: Likewise.
 919         * testsuite/29_atomics/atomic/wait_notify/2.cc: Likewise.
 920         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
 921         Likewise.
 922         * testsuite/29_atomics/headers/stdatomic.h/version.cc: Likewise.
 923         * testsuite/30_threads/barrier/1.cc: Likewise.
 924         * testsuite/30_threads/barrier/2.cc: Likewise.
 925         * testsuite/30_threads/condition_variable_any/stop_token/1.cc:
 926         Likewise.
 927         * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
 928         Likewise.
 929         * testsuite/30_threads/jthread/1.cc: Likewise.
 930         * testsuite/30_threads/jthread/version.cc: Likewise.
 931         * testsuite/30_threads/latch/1.cc: Likewise.
 932         * testsuite/30_threads/latch/2.cc: Likewise.
 933         * testsuite/30_threads/scoped_lock/requirements/typedefs.cc:
 934         Likewise.
 935         * testsuite/30_threads/semaphore/1.cc: Likewise.
 936         * testsuite/30_threads/semaphore/2.cc: Likewise.
 937         * testsuite/30_threads/stop_token/1.cc: Likewise.
 938         * testsuite/30_threads/stop_token/2.cc: Likewise.
 939         * testsuite/experimental/feat-char8_t.cc: Likewise.
 940         * testsuite/experimental/iterator/ostream_joiner.cc: Likewise.
 941         * testsuite/experimental/numeric/gcd.cc: Likewise.
 942         * testsuite/experimental/scopeguard/uniqueres.cc: Likewise.
 943         * testsuite/std/concepts/1.cc: Likewise.
 944         * testsuite/std/concepts/2.cc: Likewise.
 945         * testsuite/std/ranges/adaptors/as_const/1.cc: Likewise.
 946         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
 947         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
 948         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
 949         * testsuite/std/ranges/adaptors/enumerate/1.cc: Likewise.
 950         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
 951         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
 952         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
 953         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
 954         * testsuite/std/ranges/headers/ranges/synopsis.cc: Likewise.
 955         * testsuite/std/ranges/repeat/1.cc: Likewise.
 956         * testsuite/std/ranges/version_c++23.cc: Likewise.
 957         * testsuite/std/ranges/zip/1.cc: Likewise.
 958         * testsuite/std/time/syn_c++20.cc: Likewise.
 959         * testsuite/experimental/feat-cxx14.cc: Likewise. Include
 960         <algorithm> and <iterator>.
 961         * testsuite/23_containers/array/tuple_interface/get_neg.cc:
 962         Adjust dg-error line numbers.
 963
 964 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 965
 966         * include/bits/version.def (stds): Use >= 202100 for C++23
 967         condition.
 968         * include/bits/version.h: Regenerate.
 969         * include/std/thread: Use > C++20 instead of >= C++23 for
 970         __cplusplus condition.
 971
 972 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 973
 974         * include/std/istream (__rvalue_stream_extraction_t): Test
 975         __cpp_concepts instead of __cpp_lib_concepts.
 976         * include/std/ostream (__derived_from_ios_base): Likewise.
 977         (__rvalue_stream_insertion_t): Likewise.
 978
 979 2023-11-15  Jonathan Wakely  <jwakely@redhat.com>
 980
 981         PR libstdc++/112491
 982         * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.index):
 983         Correctly handle unused capacity at the start of the first node.
 984         * testsuite/libstdc++-xmethods/deque.cc: Check index operator
 985         when elements have been removed from the front.
 986
 987 2023-11-15  Jonathan Wakely  <jwakely@redhat.com>
 988
 989         * include/std/stacktrace (basic_stacktrace::at): Fix class name
 990         in exception message.
 991         * testsuite/19_diagnostics/stacktrace/hash.cc: Do not fail if
 992         current() returns a non-empty stacktrace.
 993
 994 2023-11-15  Alexandre Oliva  <oliva@gnu.org>
 995
 996         Revert:
 997         2023-11-15  Alexandre Oliva  <oliva@adacore.com>
 998
 999         * include/bits/stl_bvector.h (_GLIBCXX_ALWAYS_INLINE): Undef.
1000
1001 2023-11-15  Alexandre Oliva  <oliva@adacore.com>
1002
1003         * include/bits/stl_bvector.h (_GLIBCXX_ALWAYS_INLINE): Undef.
1004
1005 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
1006
1007         * include/std/chrono (operator-(const weekday&, const weekday&)):
1008         Optimize.
1009
1010 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
1011
1012         * include/std/chrono (weekday::_S_from_days): Fix UB.
1013         * testsuite/std/time/weekday/1.cc: Add test for overflow.
1014
1015 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
1016
1017         * include/std/chrono (year::is_leap): Clear code.
1018
1019 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
1020
1021         * include/std/chrono (year_month_day_last::day): Remove &1.
1022
1023 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
1024
1025         * include/std/charconv (__from_chars_pow2_base): Convert base to
1026         unsigned for call to __countr_zero.
1027         (__from_chars_alnum): Likewise for call to __bit_width.
1028
1029 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
1030
1031         PR libstdc++/112348
1032         * include/std/stacktrace (hash<basic_stacktrace<Alloc>>): Fix
1033         type of hash functio nfor entries.
1034         * testsuite/19_diagnostics/stacktrace/hash.cc: New test.
1035
1036 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
1037
1038         PR libstdc++/112491
1039         * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.size): Fix
1040         calculation to use _M_start._M_cur.
1041         * testsuite/libstdc++-xmethods/deque.cc: Check failing cases.
1042
1043 2023-11-13  Arsen Arsenović  <arsen@aarsen.me>
1044
1045         * configure: Regenerate.
1046
1047 2023-11-13  Jonathan Wakely  <jwakely@redhat.com>
1048
1049         * testsuite/std/time/clock/file/io.cc: Double timeout using
1050         dg-timeout-factor.
1051         * testsuite/std/time/clock/gps/io.cc: Likewise.
1052         * testsuite/std/time/clock/local/io.cc: Likewise.
1053         * testsuite/std/time/clock/system/io.cc: Likewise.
1054         * testsuite/std/time/clock/tai/io.cc: Likewise.
1055         * testsuite/std/time/clock/utc/io.cc: Likewise.
1056
1057 2023-11-13  Jonathan Wakely  <jwakely@redhat.com>
1058
1059         PR libstdc++/112480
1060         * include/std/optional (_Optional_payload_base::_M_reset): Set
1061         _M_engaged to false unconditionally.
1062
1063 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
1064
1065         PR libstdc++/112467
1066         * include/bits/stl_bvector.h (_M_assume_normalized): Do not use
1067         statement form of assume attribute for Clang.
1068
1069 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
1070
1071         * include/std/string_view (operator==, operator<=>): Remove
1072         redundant overloads (LWG 3950).
1073
1074 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
1075
1076         * testsuite/26_numerics/headers/complex.h/std_c++11.h: Moved to...
1077         * testsuite/26_numerics/headers/complex.h/std_c++11.cc: ...here.
1078         * testsuite/26_numerics/headers/complex.h/std_c++98.h: Moved to...
1079         * testsuite/26_numerics/headers/complex.h/std_c++98.cc: ...here.
1080         Check macro first and then #undef.
1081         * testsuite/26_numerics/headers/complex.h/std_gnu++11.h: Moved to...
1082         * testsuite/26_numerics/headers/complex.h/std_gnu++11.cc: ...here.
1083
1084 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
1085
1086         PR libstdc++/112473
1087         * include/bits/utility.h (integer_sequence): Add static_assert.
1088         * testsuite/20_util/integer_sequence/112473.cc: New test.
1089
1090 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
1091
1092         * testsuite/20_util/pair/dangling_ref.cc: Add hosted effective
1093         target for specifiers using c++17_down.
1094
1095 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
1096
1097         * include/bits/shared_ptr_atomic.h (atomic_is_lock_free)
1098         (atomic_load_explicit, atomic_load, atomic_store_explicit)
1099         (atomic_store, atomic_exchange_explicit, atomic_exchange)
1100         (atomic_compare_exchange_strong, atomic_compare_exchange_weak)
1101         (atomic_compare_exchange_strong_explicit)
1102         (atomic_compare_exchange_weak_explicit): Add deprecated
1103         attribute for C++20 and later.
1104         * testsuite/20_util/shared_ptr/atomic/1.cc: Suppress deprecated
1105         warnings.
1106         * testsuite/20_util/shared_ptr/atomic/2.cc: Likewise.
1107         * testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
1108         * testsuite/29_atomics/atomic/lwg3220.cc: Likewise.
1109
1110 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
1111
1112         * include/bits/std_mutex.h (lock_guard): Add [[nodiscard]]
1113         attribute to constructors.
1114         * include/bits/unique_lock.h (unique_lock): Likewise.
1115         * include/std/mutex (scoped_lock, scoped_lock<Mutex>): Likewise.
1116         * testsuite/30_threads/lock_guard/cons/nodiscard.cc: New test.
1117         * testsuite/30_threads/scoped_lock/cons/nodiscard.cc: New test.
1118         * testsuite/30_threads/unique_lock/cons/nodiscard.cc: New test.
1119
1120 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
1121
1122         * include/std/span (span, as_bytes, as_writable_bytes): Add
1123         [[nodiscard]] attribute on all non-void functions.
1124         * testsuite/23_containers/span/back_assert_neg.cc: Suppress
1125         nodiscard warning.
1126         * testsuite/23_containers/span/back_neg.cc: Likewise.
1127         * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1128         * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1129         * testsuite/23_containers/span/first_neg.cc: Likewise.
1130         * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1131         * testsuite/23_containers/span/front_neg.cc: Likewise.
1132         * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1133         * testsuite/23_containers/span/index_op_neg.cc: Likewise.
1134         * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1135         * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1136         * testsuite/23_containers/span/last_neg.cc: Likewise.
1137         * testsuite/23_containers/span/subspan_2_assert_neg.cc:
1138         Likewise.
1139         * testsuite/23_containers/span/subspan_3_assert_neg.cc:
1140         Likewise.
1141         * testsuite/23_containers/span/subspan_4_assert_neg.cc:
1142         Likewise.
1143         * testsuite/23_containers/span/subspan_5_assert_neg.cc:
1144         Likewise.
1145         * testsuite/23_containers/span/subspan_6_assert_neg.cc:
1146         Likewise.
1147         * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1148         * testsuite/23_containers/span/subspan_neg.cc: Likewise.
1149         * testsuite/23_containers/span/nodiscard.cc: New test.
1150
1151 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
1152
1153         PR libstdc++/111638
1154         * config.h.in: Regenerate.
1155         * configure: Regenerate.
1156         * linkage.m4 (GLIBCXX_MAYBE_UNDERSCORED_FUNCS): Remove.
1157         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1): Do not check for _foo.
1158         (GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1): Likewise.
1159         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2): Likewise.
1160         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3): Likewise.
1161         (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2): Do not use
1162         GLIBCXX_MAYBE_UNDERSCORED_FUNCS.
1163
1164 2023-11-11  Nathaniel Shead  <nathanieloshead@gmail.com>
1165
1166         PR libstdc++/79700
1167         * include/c_global/cmath (acosf, acosl, asinf, asinl, atanf)
1168         (atanl, atan2f, atan2l, ceilf, ceill, cosf, cosl, coshf, coshl)
1169         (expf, expl, fabsf, fabsl, floorf, floorl, fmodf, fmodl, frexpf)
1170         (frexpl, ldexpf, ldexpl, logf, logl, log10f, log10l, modff)
1171         (modfl, powf, powl, sinf, sinl, sinhf, sinhl, sqrtf, sqrtl, tanf)
1172         (tanl, tanhf, tanhl): Add using-declarations in namespace std.
1173         * testsuite/26_numerics/headers/cmath/equivalent_functions.cc:
1174         New test.
1175         * testsuite/26_numerics/headers/cmath/functions_std_c++17.cc:
1176         Add checks for existence of above names.
1177
1178 2023-11-09  Arsen Arsenović  <arsen@aarsen.me>
1179
1180         * testsuite/20_util/scoped_allocator/noexcept.cc: Mark as
1181         requiring hosted.
1182
1183 2023-11-09  Arsen Arsenović  <arsen@aarsen.me>
1184
1185         * include/bits/memoryfwd.h: Remove HOSTED check around allocator
1186         and its specializations.
1187
1188 2023-11-09  Patrick Palka  <ppalka@redhat.com>
1189
1190         PR libstdc++/112453
1191         * include/std/ranges (__detail::__box<_Tp>::operator*): Define
1192         && overloads as well.
1193         (__detail::__take_of_repeat_view): Forward __r when accessing
1194         its _M_value member.
1195         (__detail::__drop_of_repeat_view): Likewise.
1196         * testsuite/std/ranges/repeat/1.cc (test07): New test.
1197
1198 2023-11-09  François Dumont  <fdumont@gcc.gnu.org>
1199
1200         * include/bits/hashtable_policy.h (_RehashStateGuard): New.
1201         (_Insert_base<>::_M_insert_range(_IIt, _IIt, const _NodeGet&, false_type)):
1202         Adapt.
1203         * include/bits/hashtable.h (__rehash_guard_t): New.
1204         (__rehash_state): Remove.
1205         (_M_rehash): Remove.
1206         (_M_rehash_aux): Rename into _M_rehash.
1207         (_M_assign_elements, _M_insert_unique_node, _M_insert_multi_node): Adapt.
1208         (rehash): Adapt.
1209
1210 2023-11-09  François Dumont  <fdumont@gcc.gnu.org>
1211
1212         * include/bits/hashtable_policy.h
1213         (struct _NodePtrGuard<_HashtableAlloc, _NodePtr>): New.
1214         (_ReuseAllocNode::operator()(_Args&&...)): Use latter to guard allocated node
1215         pointer while constructing in place the value_type instance.
1216
1217 2023-11-09  Alexandre Oliva  <oliva@adacore.com>
1218
1219         PR libstdc++/110807
1220         * include/bits/stl_bvector.h (_Bit_iterator_base): Add
1221         _M_assume_normalized member function.  Call it in _M_bump_up,
1222         _M_bump_down, _M_incr, operator==, operator<=>, operator<, and
1223         operator-.
1224         (_Bit_iterator): Also call it in operator*.
1225         (_Bit_const_iterator): Likewise.
1226
1227 2023-11-07  François Dumont  <fdumont@gcc.gnu.org>
1228
1229         * include/bits/hashtable_policy.h
1230         (_Hashtable_alloc<>::_M_allocate_node): Add missing call to node destructor
1231         on construct exception.
1232
1233 2023-11-07  Richard Biener  <rguenther@suse.de>
1234
1235         PR libstdc++/112351
1236         * src/c++98/locale.cc (locale::facet::_S_initialize_once):
1237         Check whether _S_c_locale is already initialized.
1238         (locale::facet::_S_get_c_locale): Always perform non-threadsafe
1239         init when threadsafe init failed.
1240
1241 2023-11-06  Ian Lance Taylor  <iant@golang.org>
1242
1243         PR libbacktrace/111315
1244         PR libbacktrace/112263
1245         * acinclude.m4: Set -D_GNU_SOURCE in BACKTRACE_CPPFLAGS and when
1246         grepping link.h for dl_iterate_phdr.
1247         * configure: Regenerate.
1248
1249 2023-11-06  Jonathan Wakely  <jwakely@redhat.com>
1250
1251         * include/std/expected (expected::and_then, expected::or_else):
1252         Add string literals to static assertions.
1253         * include/std/optional (optional::and_then, optional::or_else):
1254         Likewise.
1255
1256 2023-11-04  Feng Jisen  <J1senn@outlook.com>
1257
1258         * include/bits/utility.h (_Nth_type): Remove redundant partial
1259         specialization.
1260
1261 2023-11-04  Jonathan Wakely  <jwakely@redhat.com>
1262
1263         PR libstdc++/110133
1264         * include/std/system_error (system_error::system_error): Group
1265         arguments so that concatenation can reuse rvalue's capacity.
1266         * src/c++11/system_error.cc (strerror_string): New function.
1267         [_GLIBCXX_HAVE_STRERROR_R] (use_strerror_result): New functions.
1268         (generic_error_category::message): Use strerror_string.
1269         (system_error_category::message): Likewise.
1270
1271 2023-11-04  Jonathan Wakely  <jwakely@redhat.com>
1272
1273         * doc/xml/manual/appendix_contributing.xml: Replace example that
1274         uses a BADNAME.
1275         * doc/html/manual/source_code_style.html: Regenerate.
1276
1277 2023-11-02  Jonathan Wakely  <jwakely@redhat.com>
1278
1279         PR libstdc++/112314
1280         * include/std/string_view (string_view::remove_suffix): Add
1281         debug assertion.
1282         * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/debug.cc:
1283         New test.
1284         * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/debug.cc:
1285         New test.
1286
1287 2023-11-02  Jonathan Wakely  <jwakely@redhat.com>
1288
1289         * acinclude.m4 (GLIBCXX_ENABLE_C99): Fix snprintf checks.
1290         * configure: Regenerate.
1291
1292 2023-10-30  François Dumont  <fdumont@gcc.gnu.org>
1293
1294         * config/abi/pre/gnu-versioned-namespace.ver: Add comment on recently
1295         added emul TLS symbols.
1296
1297 2023-10-30  François Dumont  <fdumont@gcc.gnu.org>
1298
1299         * src/experimental/contract.cc
1300         [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Rework comment.
1301         Remove weak attribute.
1302
1303 2023-10-29  François Dumont  <fdumont@gcc.gnu.org>
1304
1305         * config/abi/pre/gnu-versioned-namespace.ver: Add missing emul TLS
1306         symbols.
1307
1308 2023-10-29  François Dumont  <fdumont@gcc.gnu.org>
1309
1310         * src/experimental/contract.cc
1311         [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Provide symbol
1312         without version namespace decoration for gcc.
1313
1314 2023-10-26  Jonathan Wakely  <jwakely@redhat.com>
1315
1316         PR libstdc++/112089
1317         * include/std/shared_mutex (shared_lock::unlock): Change errc
1318         constant to operation_not_permitted.
1319         * testsuite/30_threads/shared_lock/locking/112089.cc: New test.
1320
1321 2023-10-26  Jonathan Wakely  <jwakely@redhat.com>
1322
1323         * testsuite/20_util/duration/io.cc: Double timeout using
1324         dg-timeout-factor.
1325         * testsuite/std/time/day/io.cc: Likewise.
1326         * testsuite/std/time/format.cc: Likewise.
1327         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
1328         * testsuite/std/time/month/io.cc: Likewise.
1329         * testsuite/std/time/month_day/io.cc: Likewise.
1330         * testsuite/std/time/month_day_last/io.cc: Likewise.
1331         * testsuite/std/time/month_weekday/io.cc: Likewise.
1332         * testsuite/std/time/month_weekday_last/io.cc: Likewise.
1333         * testsuite/std/time/weekday/io.cc: Likewise.
1334         * testsuite/std/time/weekday_indexed/io.cc: Likewise.
1335         * testsuite/std/time/weekday_last/io.cc: Likewise.
1336         * testsuite/std/time/year/io.cc: Likewise.
1337         * testsuite/std/time/year_month/io.cc: Likewise.
1338         * testsuite/std/time/year_month_day/io.cc: Likewise.
1339         * testsuite/std/time/year_month_day_last/io.cc: Likewise.
1340         * testsuite/std/time/year_month_weekday/io.cc: Likewise.
1341         * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
1342         * testsuite/std/time/zoned_time/io.cc: Likewise.
1343
1344 2023-10-25  Jonathan Wakely  <jwakely@redhat.com>
1345
1346         PR libstdc++/111936
1347         * src/libbacktrace/Makefile.am: Add -prefer-pic to libtool
1348         compile commands.
1349         * src/libbacktrace/Makefile.in: Regenerate.
1350
1351 2023-10-24  Paul M. Bendixen  <paulbendixen@gmail.com>
1352
1353         * include/Makefile.am: Move cstdarg, cstdalign and cstdbool to
1354         freestanding.
1355         * include/Makefile.in: Regenerate.
1356
1357 2023-10-22  Iain Sandoe  <iain@sandoe.co.uk>
1358
1359         * configure: Regenerate.
1360         * configure.ac: Handle Darwin rpaths.
1361         * src/Makefile.am: Handle Darwin rpaths.
1362         * src/Makefile.in: Regenerate.
1363
1364 2023-10-21  Jonathan Wakely  <jwakely@redhat.com>
1365
1366         * include/bits/basic_string.h (_M_init_local_buf()): New
1367         function.
1368         (_M_use_local_data()): Use _M_init_local_buf.
1369         (basic_string(), basic_string(const Alloc&))
1370         (basic_string(basic_string&&))
1371         (basic_string(basic_string&&, const Alloc&)): Use
1372         _M_init_local_buf instead of _M_use_local_data().
1373         * include/bits/basic_string.tcc (swap(basic_string&))
1374         (_M_construct(InIter, InIter, input_iterator_tag))
1375         (_M_construct(InIter, InIter, forward_iterator_tag))
1376         (_M_construct(size_type, CharT), reserve()): Likewise.
1377
1378 2023-10-21  Benjamin Brock  <brock@cs.berkeley.edu>
1379
1380         * include/std/ranges (zip_view, adjacent_view): Implement
1381         workaround for LLVM-61763.
1382
1383 2023-10-21  Dimitrij Mijoski  <dmjpp@hotmail.com>
1384
1385         * testsuite/22_locale/codecvt/codecvt_unicode.h: Test length()
1386
1387 2023-10-21  Jonathan Wakely  <jwakely@redhat.com>
1388
1389         * include/bits/fs_dir.h (operator==(default_sentinel_t)): Fix
1390         indentation.
1391
1392 2023-10-20  Marek Polacek  <polacek@redhat.com>
1393
1394         PR testsuite/111883
1395         * include/std/charconv (from_chars): Add explicit casts.
1396
1397 2023-10-19  François Dumont  <fdumont@gcc.gnu.org>
1398
1399         * include/bits/hashtable_policy.h
1400         (_Hash_code_base::_M_hash_code(const _Hash&, const _Hash_node_value<>&)): Remove.
1401         (_Hash_code_base::_M_hash_code<_H2>(const _H2&, const _Hash_node_value<>&)): Remove.
1402         * include/bits/hashtable.h
1403         (_M_src_hash_code<_H2>(const _H2&, const key_type&, const __node_value_type&)): New.
1404         (_M_merge_unique<>, _M_merge_multi<>): Use latter.
1405         * testsuite/23_containers/unordered_map/modifiers/merge.cc
1406         (test04, test05, test06): New test cases.
1407
1408 2023-10-13  Jakub Jelinek  <jakub@redhat.com>
1409
1410         * testsuite/tr1/8_c_compatibility/cstdio/functions.cc (test01):
1411         Initialize stream to va_arg(ap, FILE*) rather than 0.
1412         * testsuite/tr1/8_c_compatibility/cwchar/functions.cc (test01):
1413         Likewise.
1414
1415 2023-10-13  Hans-Peter Nilsson  <hp@axis.com>
1416
1417         * testsuite/29_atomics/atomic/compare_exchange_padding.cc,
1418         testsuite/29_atomics/atomic_flag/clear/1.cc,
1419         testsuite/29_atomics/atomic_flag/cons/value_init.cc,
1420         testsuite/29_atomics/atomic_flag/test_and_set/explicit.cc,
1421         testsuite/29_atomics/atomic_flag/test_and_set/implicit.cc,
1422         testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc,
1423         testsuite/29_atomics/atomic_ref/generic.cc,
1424         testsuite/29_atomics/atomic_ref/integral.cc,
1425         testsuite/29_atomics/atomic_ref/pointer.cc: Replace
1426         dg-require-thread-fence with dg-require-atomic-cmpxchg-word.
1427
1428 2023-10-13  Hans-Peter Nilsson  <hp@axis.com>
1429
1430         * testsuite/lib/dg-options.exp (dg-require-atomic-cmpxchg-word):
1431         New proc.
1432         * testsuite/lib/libstdc++.exp (check_v3_target_atomic_cmpxchg_word):
1433         Ditto.
1434
1435 2023-10-05  François Dumont  <fdumont@gcc.gnu.org>
1436
1437         * config/abi/pre/gnu-versioned-namespace.ver: Add missing symbols
1438         for _Float{16,32,64,128,32x,64x,128x}.
1439
1440 2023-10-04  Tom Tromey  <tromey@adacore.com>
1441
1442         * python/libstdcxx/v6/printers.py
1443         (StdExpAnyPrinter.__init__): Qualify call to
1444         _string_types.
1445
1446 2023-10-04  Tom Tromey  <tromey@adacore.com>
1447
1448         * python/libstdcxx/v6/printers.py: Assume that
1449         _versioned_namespace is non-None.
1450         * python/libstdcxx/v6/xmethods.py (is_specialization_of):
1451         Assume that _versioned_namespace is non-None.
1452
1453 2023-10-04  Tom Tromey  <tromey@adacore.com>
1454
1455         * python/libstdcxx/v6/xmethods.py (_versioned_namespace):
1456         Define.
1457
1458 2023-09-29  Dimitrij Mijoski  <dmjpp@hotmail.com>
1459
1460         PR libstdc++/108976
1461         * src/c++11/codecvt.cc (read_utf8_code_point): Fix handing of
1462         surrogates in UTF-8.
1463         (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-8.
1464         (ucs4_in): Fix handling of range with odd number of bytes.
1465         (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-16.
1466         (ucs2_out): Fix handling of surrogates in UCS-2 -> UTF-16.
1467         (ucs2_in): Fix handling of range with odd number of bytes.
1468         (__codecvt_utf16_base<char16_t>::do_in): Likewise.
1469         (__codecvt_utf16_base<char32_t>::do_in): Likewise.
1470         (__codecvt_utf16_base<wchar_t>::do_in): Likewise.
1471         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Renames, add
1472         tests for codecvt_utf16<char16_t> and codecvt_utf16<char32_t>.
1473         * testsuite/22_locale/codecvt/codecvt_unicode.h: Refactor UTF-8
1474         testing functions for char8_t, add more test cases for errors,
1475         add testing functions for codecvt_utf16.
1476         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc:
1477         Renames, add tests for codecvt_utf16<whchar_t>.
1478         * testsuite/22_locale/codecvt/codecvt_utf16/79980.cc (test06):
1479         Fix test.
1480         * testsuite/22_locale/codecvt/codecvt_unicode_char8_t.cc: New
1481         test.
1482
1483 2023-09-29  Nathaniel Shead  <nathanieloshead@gmail.com>
1484
1485         * include/bits/basic_string.h: (basic_string(basic_string&&)):
1486         Activate _M_local_buf when needed.
1487         (basic_string(basic_string&&, const _Alloc&)): Likewise.
1488         * include/bits/basic_string.tcc: (basic_string::swap): Likewise.
1489         * include/std/variant: (__detail::__variant::__construct_n): New.
1490         (__detail::__variant::__emplace): Use __construct_n.
1491
1492 2023-09-28  Tom Tromey  <tromey@adacore.com>
1493
1494         * python/libstdcxx/v6/printers.py (Printer.add_version)
1495         (add_one_template_type_printer)
1496         (FilteringTypePrinter.add_one_type_printer): Use Python
1497         "not in" operator.
1498
1499 2023-09-28  Tom Tromey  <tromey@adacore.com>
1500
1501         * python/libstdcxx/v6/printers.py (std_ratio_t_tuple):
1502         Remove.
1503
1504 2023-09-28  Tom Tromey  <tromey@adacore.com>
1505
1506         * python/libstdcxx/v6/printers.py
1507         (StdExpOptionalPrinter.__init__, lookup_node_type):
1508         Remove unused variables.
1509
1510 2023-09-28  Tom Tromey  <tromey@adacore.com>
1511
1512         * python/libstdcxx/v6/printers.py: Don't import 'os'.
1513         * python/libstdcxx/v6/__init__.py: Don't import 'gdb'.
1514
1515 2023-09-28  Tom Tromey  <tromey@adacore.com>
1516
1517         * python/libstdcxx/v6/printers.py: Use gdb.ValuePrinter
1518         everywhere.  Rename members to start with "_".
1519
1520 2023-09-28  Tom Tromey  <tromey@adacore.com>
1521
1522         * testsuite/lib/gdb-test.exp (gdb-test): Enable Python
1523         stack traces from gdb.
1524
1525 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
1526
1527         * python/libstdcxx/v6/xmethods.py (is_specialization_of): Define
1528         new function.
1529         (ArrayMethodsMatcher, DequeMethodsMatcher)
1530         (ForwardListMethodsMatcher, ListMethodsMatcher)
1531         (VectorMethodsMatcher, AssociativeContainerMethodsMatcher)
1532         (UniquePtrGetWorker, UniquePtrMethodsMatcher)
1533         (SharedPtrSubscriptWorker, SharedPtrMethodsMatcher): Use
1534         is_specialization_of instead of re.match.
1535
1536 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
1537
1538         * python/libstdcxx/v6/printers.py: Break long lines. Use raw
1539         strings for regular expressions. Add whitespace around
1540         operators.
1541         (is_member_of_namespace): Use isinstance to check type.
1542         (is_specialization_of): Likewise. Adjust template_name
1543         for versioned namespace instead of duplicating the re.match
1544         call.
1545         (StdExpAnyPrinter._string_types): New static method.
1546         (StdExpAnyPrinter.to_string): Use _string_types.
1547
1548 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
1549
1550         * python/libstdcxx/v6/printers.py: Format docstrings according
1551         to PEP 257.
1552         * python/libstdcxx/v6/xmethods.py: Likewise.
1553
1554 2023-09-28  Tim Song  <t.canens.cpp@gmail.com>
1555
1556         PR libstdc++/111050
1557         * include/bits/hashtable_policy.h
1558         (_Hash_node_value_base<>::_M_valptr(), _Hash_node_value_base<>::_M_v())
1559         Add [[__gnu__::__always_inline__]].
1560
1561 2023-09-27  Jonathan Wakely  <jwakely@redhat.com>
1562
1563         * python/libstdcxx/v6/printers.py (StdChronoTimeZoneRulePrinter):
1564         Fix incorrect number of replacement fields.
1565
1566 2023-09-26  Hans-Peter Nilsson  <hp@axis.com>
1567
1568         * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Add
1569         dg-require-thread-fence.
1570
1571 2023-09-25  Patrick Palka  <ppalka@redhat.com>
1572
1573         * include/std/charconv (__detail::__integer_to_chars_result_type):
1574         Remove.
1575         (__detail::__to_chars_16): Use to_chars_result as return type.
1576         (__detail::__to_chars_10): Likewise.
1577         (__detail::__to_chars_8): Likewise.
1578         (__detail::__to_chars_2): Likewise.
1579         (__detail::__to_chars_i): Likewise.
1580         (__detail::__integer_from_chars_result_type): Inline the
1581         constraint into ...
1582         (from_chars): ... here.  Use __is_standard_integer in the
1583         constraint.  Encode constraint as a defaulted non-type template
1584         parameter instead of within the return type.
1585
1586 2023-09-25  John David Anglin  <danglin@gcc.gnu.org>
1587
1588         * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
1589
1590 2023-09-25  Jonathan Wakely  <jwakely@redhat.com>
1591
1592         PR libstdc++/111511
1593         PR c++/111512
1594         * include/std/array (to_array): Cast memcpy arguments to void*.
1595         * testsuite/23_containers/array/creation/111512.cc: New test.
1596
1597 2023-09-25  Jonathan Wakely  <jwakely@redhat.com>
1598
1599         * include/bits/move.h (forward_list): Define for C++23.
1600         * include/bits/version.def (forward_like): Define.
1601         * include/bits/version.h: Regenerate.
1602         * include/std/utility (__glibcxx_want_forward_like): Define.
1603         * testsuite/20_util/forward_like/1.cc: New test.
1604         * testsuite/20_util/forward_like/2_neg.cc: New test.
1605         * testsuite/20_util/forward_like/version.cc: New test.
1606
1607 2023-09-19  Marek Polacek  <polacek@redhat.com>
1608
1609         * testsuite/20_util/allocator/105975.cc: Add dg-error.
1610
1611 2023-09-18  Patrick Palka  <ppalka@redhat.com>
1612
1613         PR c++/63198
1614         PR c++/18474
1615         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
1616         Make data member seed_seq::called mutable.
1617         * testsuite/26_numerics/random/independent_bits_engine/cons/seed_seq2.cc:
1618         Likewise.
1619         * testsuite/26_numerics/random/linear_congruential_engine/cons/seed_seq2.cc:
1620         Likewise.
1621         * testsuite/26_numerics/random/mersenne_twister_engine/cons/seed_seq2.cc:
1622         Likewise.
1623         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
1624         Likewise.
1625         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/seed_seq2.cc:
1626         Likewise.
1627         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/seed_seq2.cc:
1628         Likewise.
1629
1630 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
1631
1632         * doc/xml/manual/status_cxx2020.xml: Tweak P1466R3 status.
1633         * doc/html/manual/status.html: Regenerate.
1634
1635 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
1636
1637         * doc/xml/manual/configure.xml: Use conventional option name.
1638         * doc/xml/manual/status_cxx2020.xml: Update.
1639         * doc/xml/manual/status_cxx2023.xml: Update.
1640         * doc/html/*: Regenerate.
1641
1642 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
1643
1644         * doc/xml/manual/intro.xml: Clarify that building libstdc++
1645         separately from GCC is not supported.
1646         * doc/xml/manual/prerequisites.xml: Note msgfmt prerequisite for
1647         testing.
1648         * doc/html/manual/setup.html: Regenerate.
1649
1650 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1651
1652         * testsuite/29_atomics/atomic_ref/wait_notify.cc: Do not
1653         restrict to pthreads targets.
1654         * testsuite/30_threads/jthread/3.cc: Likewise.
1655         * testsuite/30_threads/semaphore/100806.cc: Likewise.
1656         * testsuite/30_threads/semaphore/try_acquire.cc: Likewise.
1657         * testsuite/30_threads/semaphore/try_acquire_for.cc: Likewise.
1658         * testsuite/30_threads/semaphore/try_acquire_posix.cc: Likewise.
1659
1660 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1661
1662         * testsuite/18_support/coroutines/95917.cc: Remove dg-options
1663         -std=gnu++2a.
1664         * testsuite/18_support/coroutines/hash.cc: Likewise.
1665         * testsuite/18_support/coroutines/lwg3460.cc: Likewise.
1666         * testsuite/18_support/destroying_delete.cc: Likewise.
1667         * testsuite/18_support/source_location/1.cc: Likewise.
1668         * testsuite/18_support/source_location/consteval.cc: Likewise.
1669         * testsuite/18_support/source_location/version.cc: Likewise.
1670         * testsuite/19_diagnostics/error_category/operators/three_way.cc:
1671         Likewise.
1672         * testsuite/19_diagnostics/error_code/operators/three_way.cc:
1673         Likewise.
1674         * testsuite/19_diagnostics/error_condition/operators/three_way.cc:
1675         Likewise.
1676         * testsuite/19_diagnostics/stacktrace/output.cc: Likewise.
1677         * testsuite/26_numerics/adjacent_difference/lwg2055.cc:
1678         Likewise.
1679         * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
1680         * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
1681         * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
1682         * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
1683         * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: Likewise.
1684         * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc:
1685         Likewise.
1686         * testsuite/28_regex/iterators/regex_iterator/lwg3719.cc:
1687         Likewise.
1688         * testsuite/28_regex/iterators/regex_token_iterator/lwg3719.cc:
1689         Likewise.
1690         * testsuite/28_regex/sub_match/compare_c++20.cc: Likewise.
1691         * testsuite/experimental/filesystem/iterators/106201.cc:
1692         Likewise.
1693         * testsuite/experimental/scopeguard/exit.cc: Likewise.
1694         * testsuite/experimental/scopeguard/uniqueres.cc: Likewise.
1695
1696 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1697
1698         * testsuite/30_threads/barrier/1.cc: Remove dg-options
1699         -std=gnu++20.
1700         * testsuite/30_threads/barrier/2.cc: Likewise.
1701         * testsuite/30_threads/barrier/arrive.cc: Likewise.
1702         * testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
1703         * testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
1704         * testsuite/30_threads/barrier/completion.cc: Likewise.
1705         * testsuite/30_threads/condition_variable/members/clock_neg.cc:
1706         Likewise.
1707         * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
1708         Likewise.
1709         * testsuite/30_threads/condition_variable_any/stop_token/1.cc:
1710         Likewise.
1711         * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
1712         Likewise.
1713         * testsuite/30_threads/future/members/clock_neg.cc: Likewise.
1714         * testsuite/30_threads/headers/stop_token/synopsis.cc: Likewise.
1715         * testsuite/30_threads/headers/thread/types_std_c++20.cc:
1716         Likewise.
1717         * testsuite/30_threads/jthread/1.cc: Likewise.
1718         * testsuite/30_threads/jthread/100612.cc: Likewise.
1719         * testsuite/30_threads/jthread/95989.cc: Likewise.
1720         * testsuite/30_threads/jthread/jthread.cc: Likewise.
1721         * testsuite/30_threads/jthread/version.cc: Likewise.
1722         * testsuite/30_threads/latch/1.cc: Likewise.
1723         * testsuite/30_threads/latch/2.cc: Likewise.
1724         * testsuite/30_threads/latch/3.cc: Likewise.
1725         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/clock_neg.cc:
1726         Likewise.
1727         * testsuite/30_threads/semaphore/1.cc: Likewise.
1728         * testsuite/30_threads/semaphore/2.cc: Likewise.
1729         * testsuite/30_threads/semaphore/least_max_value_neg.cc:
1730         Likewise.
1731         * testsuite/30_threads/semaphore/try_acquire_until.cc: Likewise.
1732         * testsuite/30_threads/shared_future/members/clock_neg.cc:
1733         Likewise.
1734         * testsuite/30_threads/shared_lock/locking/clock_neg.cc:
1735         Likewise.
1736         * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
1737         Likewise.
1738         * testsuite/30_threads/stop_token/1.cc: Likewise.
1739         * testsuite/30_threads/stop_token/2.cc: Likewise.
1740         * testsuite/30_threads/stop_token/stop_callback.cc: Likewise.
1741         * testsuite/30_threads/stop_token/stop_callback/deadlock.cc:
1742         Likewise.
1743         * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
1744         Likewise.
1745         * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc:
1746         Likewise.
1747         * testsuite/30_threads/stop_token/stop_callback/invoke.cc:
1748         Likewise.
1749         * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
1750         * testsuite/30_threads/stop_token/stop_source/assign.cc:
1751         Likewise.
1752         * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
1753         * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
1754         Likewise.
1755         * testsuite/30_threads/thread/id/operators_c++20.cc: Likewise.
1756         * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc:
1757         Likewise.
1758         * testsuite/30_threads/unique_lock/locking/clock_neg.cc:
1759         Likewise.
1760
1761 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1762
1763         * testsuite/27_io/basic_istream/extractors_character/char/lwg2499.cc:
1764         Remove dg-options -std=gnu++2a.
1765         * testsuite/27_io/basic_istream/extractors_character/char/lwg2499_neg.cc:
1766         Likewise.
1767         * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499.cc:
1768         Likewise.
1769         * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499_neg.cc:
1770         Likewise.
1771         * testsuite/27_io/basic_istringstream/cons/char/1.cc: Likewise.
1772         * testsuite/27_io/basic_istringstream/cons/wchar_t/1.cc:
1773         Likewise.
1774         * testsuite/27_io/basic_istringstream/str/char/2.cc: Likewise.
1775         * testsuite/27_io/basic_istringstream/str/wchar_t/2.cc:
1776         Likewise.
1777         * testsuite/27_io/basic_istringstream/view/char/1.cc: Likewise.
1778         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
1779         Likewise.
1780         * testsuite/27_io/basic_ostream/emit/1.cc: Likewise.
1781         * testsuite/27_io/basic_ostream/inserters_character/char/deleted.cc:
1782         Likewise.
1783         * testsuite/27_io/basic_ostream/inserters_character/wchar_t/deleted.cc:
1784         Likewise.
1785         * testsuite/27_io/basic_ostringstream/cons/char/1.cc: Likewise.
1786         * testsuite/27_io/basic_ostringstream/cons/wchar_t/1.cc:
1787         Likewise.
1788         * testsuite/27_io/basic_ostringstream/str/char/3.cc: Likewise.
1789         * testsuite/27_io/basic_ostringstream/str/wchar_t/3.cc:
1790         Likewise.
1791         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
1792         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
1793         Likewise.
1794         * testsuite/27_io/basic_stringbuf/cons/char/2.cc: Likewise.
1795         * testsuite/27_io/basic_stringbuf/cons/wchar_t/2.cc: Likewise.
1796         * testsuite/27_io/basic_stringbuf/str/char/4.cc: Likewise.
1797         * testsuite/27_io/basic_stringbuf/str/wchar_t/4.cc: Likewise.
1798         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
1799         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
1800         * testsuite/27_io/basic_stringstream/cons/char/1.cc: Likewise.
1801         * testsuite/27_io/basic_stringstream/cons/char/97719.cc:
1802         Likewise.
1803         * testsuite/27_io/basic_stringstream/cons/wchar_t/1.cc:
1804         Likewise.
1805         * testsuite/27_io/basic_stringstream/str/char/5.cc: Likewise.
1806         * testsuite/27_io/basic_stringstream/str/wchar_t/5.cc.cc:
1807         Likewise.
1808         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
1809         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
1810         Likewise.
1811         * testsuite/27_io/basic_syncbuf/1.cc: Likewise.
1812         * testsuite/27_io/basic_syncbuf/2.cc: Likewise.
1813         * testsuite/27_io/basic_syncbuf/basic_ops/1.cc: Likewise.
1814         * testsuite/27_io/basic_syncbuf/requirements/types.cc: Likewise.
1815         * testsuite/27_io/basic_syncbuf/sync_ops/1.cc: Likewise.
1816         * testsuite/27_io/basic_syncstream/1.cc: Likewise.
1817         * testsuite/27_io/basic_syncstream/2.cc: Likewise.
1818         * testsuite/27_io/basic_syncstream/basic_ops/1.cc: Likewise.
1819         * testsuite/27_io/basic_syncstream/requirements/types.cc:
1820         Likewise.
1821         * testsuite/27_io/filesystem/iterators/106201.cc: Likewise.
1822         * testsuite/27_io/filesystem/iterators/lwg3719.cc: Likewise.
1823         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc:
1824         Likewise.
1825         * testsuite/27_io/filesystem/path/nonmember/cmp_c++20.cc:
1826         Likewise.
1827
1828 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1829
1830         * testsuite/26_numerics/accumulate/constexpr.cc: Remove
1831         dg-options -std=gnu++2a.
1832         * testsuite/26_numerics/accumulate/lwg2055.cc: Likewise.
1833         * testsuite/26_numerics/adjacent_difference/constexpr.cc:
1834         Likewise.
1835         * testsuite/26_numerics/bit/bit.cast/105027.cc: Likewise.
1836         * testsuite/26_numerics/bit/bit.cast/bit_cast.cc: Likewise.
1837         * testsuite/26_numerics/bit/bit.cast/version.cc: Likewise.
1838         * testsuite/26_numerics/bit/bit.count/countl_one.cc: Likewise.
1839         * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc:
1840         Likewise.
1841         * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: Likewise.
1842         * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: Likewise.
1843         * testsuite/26_numerics/bit/bit.pow.two/lwg3656.cc: Likewise.
1844         * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
1845         * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
1846         * testsuite/26_numerics/bit/header-2.cc: Likewise.
1847         * testsuite/26_numerics/bit/header.cc: Likewise.
1848         * testsuite/26_numerics/complex/1.cc: Likewise.
1849         * testsuite/26_numerics/complex/2.cc: Likewise.
1850         * testsuite/26_numerics/complex/comparison_operators/more_constexpr.cc:
1851         Likewise.
1852         * testsuite/26_numerics/complex/operators/more_constexpr.cc:
1853         Likewise.
1854         * testsuite/26_numerics/complex/requirements/more_constexpr.cc:
1855         Likewise.
1856         * testsuite/26_numerics/complex/value_operations/more_constexpr.cc:
1857         Likewise.
1858         * testsuite/26_numerics/endian/1.cc: Likewise.
1859         * testsuite/26_numerics/endian/2.cc: Likewise.
1860         * testsuite/26_numerics/endian/3.cc: Likewise.
1861         * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
1862         * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
1863         * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
1864         * testsuite/26_numerics/inner_product/lwg2055.cc: Likewise.
1865         * testsuite/26_numerics/iota/constexpr.cc: Likewise.
1866         * testsuite/26_numerics/lerp/1.cc: Likewise.
1867         * testsuite/26_numerics/lerp/constexpr.cc: Likewise.
1868         * testsuite/26_numerics/lerp/version.cc: Likewise.
1869         * testsuite/26_numerics/midpoint/floating.cc: Likewise.
1870         * testsuite/26_numerics/midpoint/integral.cc: Likewise.
1871         * testsuite/26_numerics/midpoint/pointer.cc: Likewise.
1872         * testsuite/26_numerics/midpoint/pointer_neg.cc: Likewise.
1873         * testsuite/26_numerics/midpoint/version.cc: Likewise.
1874         * testsuite/26_numerics/numbers/1.cc: Likewise.
1875         * testsuite/26_numerics/numbers/2.cc: Likewise.
1876         * testsuite/26_numerics/numbers/3.cc: Likewise.
1877         * testsuite/26_numerics/numbers/float128.cc: Likewise.
1878         * testsuite/26_numerics/numbers/nonfloat_neg.cc: Likewise.
1879         * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
1880         * testsuite/26_numerics/partial_sum/lwg2055.cc: Likewise.
1881         * testsuite/26_numerics/random/concept.cc: Likewise.
1882         * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
1883         * testsuite/26_numerics/slice/compare.cc: Likewise.
1884         * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc:
1885         Likewise.
1886         * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc:
1887         Likewise.
1888         * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
1889
1890 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1891
1892         * testsuite/24_iterators/aliases.cc: Remove dg-options
1893         -std=gnu++2a.
1894         * testsuite/24_iterators/associated_types/incrementable.traits.cc:
1895         Likewise.
1896         * testsuite/24_iterators/associated_types/iterator.traits.cc:
1897         Likewise.
1898         * testsuite/24_iterators/associated_types/readable.traits.cc:
1899         Likewise.
1900         * testsuite/24_iterators/back_insert_iterator/constexpr.cc:
1901         Likewise.
1902         * testsuite/24_iterators/back_insert_iterator/pr93884.cc:
1903         Likewise.
1904         * testsuite/24_iterators/bidirectional/concept.cc: Likewise.
1905         * testsuite/24_iterators/common_iterator/1.cc: Likewise.
1906         * testsuite/24_iterators/common_iterator/100823.cc: Likewise.
1907         * testsuite/24_iterators/common_iterator/2.cc: Likewise.
1908         * testsuite/24_iterators/contiguous/concept.cc: Likewise.
1909         * testsuite/24_iterators/contiguous/tag.cc: Likewise.
1910         * testsuite/24_iterators/counted_iterator/1.cc: Likewise.
1911         * testsuite/24_iterators/counted_iterator/lwg3389.cc: Likewise.
1912         * testsuite/24_iterators/counted_iterator/lwg3643.cc: Likewise.
1913         * testsuite/24_iterators/customization_points/92894.cc:
1914         Likewise.
1915         * testsuite/24_iterators/customization_points/iter_move.cc:
1916         Likewise.
1917         * testsuite/24_iterators/customization_points/iter_swap.cc:
1918         Likewise.
1919         * testsuite/24_iterators/customization_points/lwg3420.cc:
1920         Likewise.
1921         * testsuite/24_iterators/forward/concept.cc: Likewise.
1922         * testsuite/24_iterators/front_insert_iterator/constexpr.cc:
1923         Likewise.
1924         * testsuite/24_iterators/front_insert_iterator/pr93884.cc:
1925         Likewise.
1926         * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
1927         Likewise.
1928         * testsuite/24_iterators/indirect_callable/92894.cc: Likewise.
1929         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
1930         Likewise.
1931         * testsuite/24_iterators/indirect_callable/projected.cc:
1932         Likewise.
1933         * testsuite/24_iterators/input/concept.cc: Likewise.
1934         * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
1935         * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
1936         Likewise.
1937         * testsuite/24_iterators/istream_iterator/sentinel.cc: Likewise.
1938         * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
1939         Likewise.
1940         * testsuite/24_iterators/istreambuf_iterator/sentinel.cc:
1941         Likewise.
1942         * testsuite/24_iterators/move_iterator/cust.cc: Likewise.
1943         * testsuite/24_iterators/move_iterator/dr3435.cc: Likewise.
1944         * testsuite/24_iterators/move_iterator/input_iterator.cc:
1945         Likewise.
1946         * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
1947         * testsuite/24_iterators/move_iterator/lwg3391.cc: Likewise.
1948         * testsuite/24_iterators/move_iterator/move_only.cc: Likewise.
1949         * testsuite/24_iterators/move_iterator/p2520r0.cc: Likewise.
1950         * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
1951         Likewise.
1952         * testsuite/24_iterators/move_iterator/sentinel.cc: Likewise.
1953         * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: Likewise.
1954         * testsuite/24_iterators/output/concept.cc: Likewise.
1955         * testsuite/24_iterators/random_access/concept.cc: Likewise.
1956         * testsuite/24_iterators/range_access/range_access_cpp20.cc:
1957         Likewise.
1958         * testsuite/24_iterators/range_access/range_access_cpp20_neg.cc:
1959         Likewise.
1960         * testsuite/24_iterators/range_operations/100768.cc: Likewise.
1961         * testsuite/24_iterators/range_operations/advance.cc: Likewise.
1962         * testsuite/24_iterators/range_operations/advance_overflow.cc:
1963         Likewise.
1964         * testsuite/24_iterators/range_operations/distance.cc: Likewise.
1965         * testsuite/24_iterators/range_operations/lwg3392.cc: Likewise.
1966         * testsuite/24_iterators/range_operations/next.cc: Likewise.
1967         * testsuite/24_iterators/range_operations/prev.cc: Likewise.
1968         * testsuite/24_iterators/reverse_iterator/cust.cc: Likewise.
1969         * testsuite/24_iterators/reverse_iterator/dr3435.cc: Likewise.
1970         * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
1971         Likewise.
1972
1973 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1974
1975         * testsuite/23_containers/array/comparison_operators/96851.cc:
1976         Remove dg-options -std=gnu++2a.
1977         * testsuite/23_containers/array/comparison_operators/constexpr.cc:
1978         Likewise.
1979         * testsuite/23_containers/array/creation/1.cc: Likewise.
1980         * testsuite/23_containers/array/creation/110167.cc: Likewise.
1981         * testsuite/23_containers/array/creation/2.cc: Likewise.
1982         * testsuite/23_containers/array/creation/3_neg.cc: Likewise.
1983         * testsuite/23_containers/array/requirements/constexpr_fill.cc:
1984         Likewise.
1985         * testsuite/23_containers/array/requirements/constexpr_swap.cc:
1986         Likewise.
1987         * testsuite/23_containers/deque/48101-3_neg.cc: Likewise.
1988         * testsuite/23_containers/deque/erasure.cc: Likewise.
1989         * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
1990         Likewise.
1991         * testsuite/23_containers/deque/operators/cmp_c++20.cc:
1992         Likewise.
1993         * testsuite/23_containers/forward_list/48101-3_neg.cc: Likewise.
1994         * testsuite/23_containers/forward_list/cmp_c++20.cc: Likewise.
1995         * testsuite/23_containers/forward_list/erasure.cc: Likewise.
1996         * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
1997         Likewise.
1998         * testsuite/23_containers/forward_list/operations/remove_cxx20_return.cc:
1999         Likewise.
2000         * testsuite/23_containers/forward_list/operations/unique_cxx20_return.cc:
2001         Likewise.
2002         * testsuite/23_containers/list/48101-3_neg.cc: Likewise.
2003         * testsuite/23_containers/list/cmp_c++20.cc: Likewise.
2004         * testsuite/23_containers/list/erasure.cc: Likewise.
2005         * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
2006         Likewise.
2007         * testsuite/23_containers/list/operations/remove_cxx20_return.cc:
2008         Likewise.
2009         * testsuite/23_containers/list/operations/unique_cxx20_return.cc:
2010         Likewise.
2011         * testsuite/23_containers/map/48101-3_neg.cc: Likewise.
2012         * testsuite/23_containers/map/erasure.cc: Likewise.
2013         * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
2014         Likewise.
2015         * testsuite/23_containers/map/operations/contains.cc: Likewise.
2016         * testsuite/23_containers/map/operators/cmp_c++20.cc: Likewise.
2017         * testsuite/23_containers/multimap/48101-3_neg.cc: Likewise.
2018         * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
2019         Likewise.
2020         * testsuite/23_containers/multimap/operations/contains.cc:
2021         Likewise.
2022         * testsuite/23_containers/multimap/operators/cmp_c++20.cc:
2023         Likewise.
2024         * testsuite/23_containers/multiset/48101-3_neg.cc: Likewise.
2025         * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
2026         Likewise.
2027         * testsuite/23_containers/multiset/operations/contains.cc:
2028         Likewise.
2029         * testsuite/23_containers/multiset/operators/cmp_c++20.cc:
2030         Likewise.
2031         * testsuite/23_containers/priority_queue/92878_92947.cc:
2032         Likewise.
2033         * testsuite/23_containers/queue/92878_92947.cc: Likewise.
2034         * testsuite/23_containers/queue/cmp_c++20.cc: Likewise.
2035         * testsuite/23_containers/set/48101-3_neg.cc: Likewise.
2036         * testsuite/23_containers/set/erasure.cc: Likewise.
2037         * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
2038         Likewise.
2039         * testsuite/23_containers/set/operations/contains.cc: Likewise.
2040         * testsuite/23_containers/set/operators/cmp_c++20.cc: Likewise.
2041         * testsuite/23_containers/span/1.cc: Likewise.
2042         * testsuite/23_containers/span/101411.cc: Likewise.
2043         * testsuite/23_containers/span/2.cc: Likewise.
2044         * testsuite/23_containers/span/deduction.cc: Likewise.
2045         * testsuite/23_containers/span/explicit.cc: Likewise.
2046         * testsuite/23_containers/span/layout_compat.cc: Likewise.
2047         * testsuite/23_containers/span/lwg3255.cc: Likewise.
2048         * testsuite/23_containers/span/nothrow_cons.cc: Likewise.
2049         * testsuite/23_containers/span/trivially_copyable.cc: Likewise.
2050         * testsuite/23_containers/stack/92878_92947.cc: Likewise.
2051         * testsuite/23_containers/stack/cmp_c++20.cc: Likewise.
2052         * testsuite/23_containers/unordered_map/48101-3_neg.cc:
2053         Likewise.
2054         * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
2055         * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
2056         Likewise.
2057         * testsuite/23_containers/unordered_map/operations/1.cc:
2058         Likewise.
2059         * testsuite/23_containers/unordered_map/operations/contains.cc:
2060         Likewise.
2061         * testsuite/23_containers/unordered_multimap/48101-3_neg.cc:
2062         Likewise.
2063         * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
2064         Likewise.
2065         * testsuite/23_containers/unordered_multimap/operations/1.cc:
2066         Likewise.
2067         * testsuite/23_containers/unordered_multimap/operations/contains.cc:
2068         Likewise.
2069         * testsuite/23_containers/unordered_multiset/48101-3_neg.cc:
2070         Likewise.
2071         * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
2072         Likewise.
2073         * testsuite/23_containers/unordered_multiset/operations/1.cc:
2074         Likewise.
2075         * testsuite/23_containers/unordered_multiset/operations/contains.cc:
2076         Likewise.
2077         * testsuite/23_containers/unordered_set/48101-3_neg.cc:
2078         Likewise.
2079         * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
2080         * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
2081         Likewise.
2082         * testsuite/23_containers/unordered_set/operations/1.cc:
2083         Likewise.
2084         * testsuite/23_containers/unordered_set/operations/contains.cc:
2085         Likewise.
2086         * testsuite/23_containers/vector/48101-3_neg.cc: Likewise.
2087         * testsuite/23_containers/vector/bool/capacity/constexpr.cc:
2088         Likewise.
2089         * testsuite/23_containers/vector/bool/cmp_c++20.cc: Likewise.
2090         * testsuite/23_containers/vector/bool/cons/constexpr.cc:
2091         Likewise.
2092         * testsuite/23_containers/vector/bool/element_access/constexpr.cc:
2093         Likewise.
2094         * testsuite/23_containers/vector/bool/iterator_c++20.cc:
2095         Likewise.
2096         * testsuite/23_containers/vector/bool/modifiers/assign/constexpr.cc:
2097         Likewise.
2098         * testsuite/23_containers/vector/bool/modifiers/constexpr.cc:
2099         Likewise.
2100         * testsuite/23_containers/vector/bool/modifiers/swap/constexpr.cc:
2101         Likewise.
2102         * testsuite/23_containers/vector/capacity/constexpr.cc:
2103         Likewise.
2104         * testsuite/23_containers/vector/cmp_c++20.cc: Likewise.
2105         * testsuite/23_containers/vector/cons/constexpr.cc: Likewise.
2106         * testsuite/23_containers/vector/data_access/constexpr.cc:
2107         Likewise.
2108         * testsuite/23_containers/vector/element_access/constexpr.cc:
2109         Likewise.
2110         * testsuite/23_containers/vector/erasure.cc: Likewise.
2111         * testsuite/23_containers/vector/modifiers/assign/constexpr.cc:
2112         Likewise.
2113         * testsuite/23_containers/vector/modifiers/constexpr.cc:
2114         Likewise.
2115         * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
2116         Likewise.
2117         * testsuite/23_containers/vector/modifiers/swap/constexpr.cc:
2118         Likewise.
2119         * testsuite/23_containers/vector/requirements/version.cc:
2120         Likewise.
2121
2122 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2123
2124         * testsuite/21_strings/basic_string/cons/char/105995.cc: Remove
2125         dg-options -std=gnu++20.
2126         * testsuite/21_strings/basic_string/cons/char/constexpr.cc:
2127         Likewise.
2128         * testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc:
2129         Likewise.
2130         * testsuite/21_strings/basic_string/erasure.cc: Likewise.
2131         * testsuite/21_strings/basic_string/hash/hash_char8_t.cc:
2132         Likewise.
2133         * testsuite/21_strings/basic_string/literals/constexpr.cc:
2134         Likewise.
2135         * testsuite/21_strings/basic_string/modifiers/constexpr.cc:
2136         Likewise.
2137         * testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc:
2138         Likewise.
2139         * testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc:
2140         Likewise.
2141         * testsuite/21_strings/basic_string/operations/ends_with/char.cc:
2142         Likewise.
2143         * testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc:
2144         Likewise.
2145         * testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc:
2146         Likewise.
2147         * testsuite/21_strings/basic_string/operations/starts_with/char.cc:
2148         Likewise.
2149         * testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc:
2150         Likewise.
2151         * testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc:
2152         Likewise.
2153         * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc:
2154         Likewise.
2155         * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
2156         Likewise.
2157         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
2158         Likewise.
2159         * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
2160         Likewise.
2161         * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc:
2162         Likewise.
2163         * testsuite/21_strings/basic_string_view/operations/ends_with/char.cc:
2164         Likewise.
2165         * testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc:
2166         Likewise.
2167         * testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc:
2168         Likewise.
2169         * testsuite/21_strings/basic_string_view/operations/starts_with/char.cc:
2170         Likewise.
2171         * testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc:
2172         Likewise.
2173         * testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc:
2174         Likewise.
2175         * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
2176         Likewise.
2177         * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
2178         Likewise.
2179         * testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc:
2180         Likewise.
2181         * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
2182         Likewise.
2183
2184 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2185
2186         * testsuite/20_util/allocator/105975.cc: Remove dg-options
2187         -std=gnu++2a.
2188         * testsuite/20_util/allocator/rebind_c++20.cc: Likewise.
2189         * testsuite/20_util/allocator/requirements/constexpr.cc:
2190         Likewise.
2191         * testsuite/20_util/allocator/requirements/typedefs_c++20.cc:
2192         Likewise.
2193         * testsuite/20_util/allocator_traits/header-2.cc: Likewise.
2194         * testsuite/20_util/allocator_traits/header.cc: Likewise.
2195         * testsuite/20_util/allocator_traits/members/92878_92947.cc:
2196         Likewise.
2197         * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
2198         * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
2199         * testsuite/20_util/assume_aligned/1.cc: Likewise.
2200         * testsuite/20_util/assume_aligned/2_neg.cc: Likewise.
2201         * testsuite/20_util/assume_aligned/3.cc: Likewise.
2202         * testsuite/20_util/assume_aligned/97132.cc: Likewise.
2203         * testsuite/20_util/bind/constexpr.cc: Likewise.
2204         * testsuite/20_util/bitset/operations/96303.cc: Likewise.
2205         * testsuite/20_util/common_reference/100894.cc: Likewise.
2206         * testsuite/20_util/common_reference/requirements/alias_decl.cc:
2207         Likewise.
2208         * testsuite/20_util/common_reference/requirements/explicit_instantiation.cc:
2209         Likewise.
2210         * testsuite/20_util/common_reference/requirements/typedefs.cc:
2211         Likewise.
2212         * testsuite/20_util/duration/comparison_operators/three_way.cc:
2213         Likewise.
2214         * testsuite/20_util/exchange/constexpr.cc: Likewise.
2215         * testsuite/20_util/exchange/noexcept.cc: Likewise.
2216         * testsuite/20_util/from_chars/1_c++20_neg.cc: Likewise.
2217         * testsuite/20_util/from_chars/compare.cc: Likewise.
2218         * testsuite/20_util/function_objects/bind_front/1.cc: Likewise.
2219         * testsuite/20_util/function_objects/bind_front/107784.cc:
2220         Likewise.
2221         * testsuite/20_util/function_objects/bind_front/111327.cc:
2222         Likewise.
2223         * testsuite/20_util/function_objects/bind_front/2.cc: Likewise.
2224         * testsuite/20_util/function_objects/bind_front/97101.cc:
2225         Likewise.
2226         * testsuite/20_util/function_objects/bind_front/constexpr.cc:
2227         Likewise.
2228         * testsuite/20_util/function_objects/constexpr_searcher.cc:
2229         Likewise.
2230         * testsuite/20_util/function_objects/identity/1.cc: Likewise.
2231         * testsuite/20_util/function_objects/invoke/constexpr.cc:
2232         Likewise.
2233         * testsuite/20_util/function_objects/mem_fn/constexpr.cc:
2234         Likewise.
2235         * testsuite/20_util/function_objects/not_fn/constexpr.cc:
2236         Likewise.
2237         * testsuite/20_util/integer_comparisons/1.cc: Likewise.
2238         * testsuite/20_util/integer_comparisons/2.cc: Likewise.
2239         * testsuite/20_util/integer_comparisons/equal.cc: Likewise.
2240         * testsuite/20_util/integer_comparisons/equal_neg.cc: Likewise.
2241         * testsuite/20_util/integer_comparisons/greater.cc: Likewise.
2242         * testsuite/20_util/integer_comparisons/greater_equal.cc:
2243         Likewise.
2244         * testsuite/20_util/integer_comparisons/greater_equal_neg.cc:
2245         Likewise.
2246         * testsuite/20_util/integer_comparisons/greater_neg.cc:
2247         Likewise.
2248         * testsuite/20_util/integer_comparisons/in_range.cc: Likewise.
2249         * testsuite/20_util/integer_comparisons/in_range_neg.cc:
2250         Likewise.
2251         * testsuite/20_util/integer_comparisons/less.cc: Likewise.
2252         * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
2253         * testsuite/20_util/integer_comparisons/less_equal_neg.cc:
2254         Likewise.
2255         * testsuite/20_util/integer_comparisons/less_neg.cc: Likewise.
2256         * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
2257         * testsuite/20_util/integer_comparisons/not_equal_neg.cc:
2258         Likewise.
2259         * testsuite/20_util/is_bounded_array/requirements/explicit_instantiation.cc:
2260         Likewise.
2261         * testsuite/20_util/is_bounded_array/requirements/typedefs.cc:
2262         Likewise.
2263         * testsuite/20_util/is_bounded_array/value.cc: Likewise.
2264         * testsuite/20_util/is_constant_evaluated/1.cc: Likewise.
2265         * testsuite/20_util/is_constant_evaluated/noexcept.cc: Likewise.
2266         * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
2267         * testsuite/20_util/is_layout_compatible/is_corresponding_member.cc:
2268         Likewise.
2269         * testsuite/20_util/is_layout_compatible/value.cc: Likewise.
2270         * testsuite/20_util/is_layout_compatible/version.cc: Likewise.
2271         * testsuite/20_util/is_nothrow_constructible/value_c++20.cc:
2272         Likewise.
2273         * testsuite/20_util/is_nothrow_convertible/requirements/explicit_instantiation.cc:
2274         Likewise.
2275         * testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
2276         Likewise.
2277         * testsuite/20_util/is_nothrow_convertible/value.cc: Likewise.
2278         * testsuite/20_util/is_pod/deprecated-2a.cc: Likewise.
2279         * testsuite/20_util/is_pointer_interconvertible/value.cc:
2280         Likewise.
2281         * testsuite/20_util/is_pointer_interconvertible/version.cc:
2282         Likewise.
2283         * testsuite/20_util/is_pointer_interconvertible/with_class.cc:
2284         Likewise.
2285         * testsuite/20_util/is_unbounded_array/requirements/explicit_instantiation.cc:
2286         Likewise.
2287         * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc:
2288         Likewise.
2289         * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
2290         * testsuite/20_util/optional/assignment/92878_92947.cc:
2291         Likewise.
2292         * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
2293         * testsuite/20_util/optional/constexpr/assign.cc: Likewise.
2294         * testsuite/20_util/optional/constexpr/cons/conv.cc: Likewise.
2295         * testsuite/20_util/optional/constexpr/modifiers.cc: Likewise.
2296         * testsuite/20_util/optional/constexpr/swap.cc: Likewise.
2297         * testsuite/20_util/optional/relops/96269.cc: Likewise.
2298         * testsuite/20_util/optional/relops/three_way.cc: Likewise.
2299         * testsuite/20_util/pair/comparison_operators/constexpr_c++20.cc:
2300         Likewise.
2301         * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
2302         * testsuite/20_util/pair/constexpr_assign.cc: Likewise.
2303         * testsuite/20_util/pair/constexpr_swap.cc: Likewise.
2304         * testsuite/20_util/pair/requirements/structural.cc: Likewise.
2305         * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc:
2306         Likewise.
2307         * testsuite/20_util/polymorphic_allocator/allocate_object.cc:
2308         Likewise.
2309         * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc:
2310         Likewise.
2311         * testsuite/20_util/polymorphic_allocator/lwg3237.cc: Likewise.
2312         * testsuite/20_util/reference_wrapper/constexpr.cc: Likewise.
2313         * testsuite/20_util/reference_wrapper/incomplete.cc: Likewise.
2314         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc:
2315         Likewise.
2316         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
2317         Likewise.
2318         * testsuite/20_util/remove_cvref/value.cc: Likewise.
2319         * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc:
2320         Likewise.
2321         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
2322         Likewise.
2323         * testsuite/20_util/shared_ptr/casts/rval.cc: Likewise.
2324         * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc:
2325         Likewise.
2326         * testsuite/20_util/shared_ptr/cons/alias-rval.cc: Likewise.
2327         * testsuite/20_util/shared_ptr/creation/92878_92947.cc:
2328         Likewise.
2329         * testsuite/20_util/shared_ptr/creation/array.cc: Likewise.
2330         * testsuite/20_util/shared_ptr/creation/overwrite.cc: Likewise.
2331         * testsuite/20_util/shared_ptr/creation/version.cc: Likewise.
2332         * testsuite/20_util/time_point/4.cc: Likewise.
2333         * testsuite/20_util/time_point/comparison_operators/three_way.cc:
2334         Likewise.
2335         * testsuite/20_util/to_address/1.cc: Likewise.
2336         * testsuite/20_util/to_address/1_neg.cc: Likewise.
2337         * testsuite/20_util/to_address/debug.cc: Likewise.
2338         * testsuite/20_util/to_address/lwg3545.cc: Likewise.
2339         * testsuite/20_util/to_chars/compare.cc: Likewise.
2340         * testsuite/20_util/tuple/comparison_operators/three_way.cc:
2341         Likewise.
2342         * testsuite/20_util/tuple/cons/102270.cc: Likewise.
2343         * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc:
2344         Likewise.
2345         * testsuite/20_util/tuple/constexpr_swap.cc: Likewise.
2346         * testsuite/20_util/type_identity/requirements/alias_decl.cc:
2347         Likewise.
2348         * testsuite/20_util/type_identity/requirements/explicit_instantiation.cc:
2349         Likewise.
2350         * testsuite/20_util/type_identity/requirements/typedefs.cc:
2351         Likewise.
2352         * testsuite/20_util/typeindex/comparison_operators_c++20.cc:
2353         Likewise.
2354         * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc:
2355         Likewise.
2356         * testsuite/20_util/unique_ptr/creation/92878_92947.cc:
2357         Likewise.
2358         * testsuite/20_util/unique_ptr/creation/for_overwrite.cc:
2359         Likewise.
2360         * testsuite/20_util/unique_ptr/creation/for_overwrite__neg.cc:
2361         Likewise.
2362         * testsuite/20_util/unique_ptr/io/lwg2948.cc: Likewise.
2363         * testsuite/20_util/unwrap_reference/1.cc: Likewise.
2364         * testsuite/20_util/unwrap_reference/2.cc: Likewise.
2365         * testsuite/20_util/unwrap_reference/3.cc: Likewise.
2366         * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
2367         * testsuite/20_util/uses_allocator/lwg3527.cc: Likewise.
2368         * testsuite/20_util/uses_allocator/make_obj.cc: Likewise.
2369         * testsuite/20_util/uses_allocator/uninitialized_construct.cc:
2370         Likewise.
2371         * testsuite/20_util/variant/92878_92947.cc: Likewise.
2372         * testsuite/20_util/variant/95915.cc: Likewise.
2373         * testsuite/20_util/variant/constexpr.cc: Likewise.
2374         * testsuite/20_util/variant/relops/three_way.cc: Likewise.
2375         * testsuite/20_util/variant/visit_neg.cc: Likewise.
2376         * testsuite/20_util/variant/visit_r.cc: Likewise.
2377         * testsuite/20_util/weak_ptr/atomic_weak_ptr.cc: Likewise.
2378
2379 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2380
2381         * testsuite/18_support/comparisons/algorithms/fallback.cc:
2382         Remove dg-options -std=gnu++2a.
2383         * testsuite/18_support/comparisons/algorithms/partial_order.cc:
2384         Likewise.
2385         * testsuite/18_support/comparisons/algorithms/strong_order.cc:
2386         Likewise.
2387         * testsuite/18_support/comparisons/algorithms/strong_order_floats.cc:
2388         Likewise.
2389         * testsuite/18_support/comparisons/algorithms/weak_order.cc:
2390         Likewise.
2391         * testsuite/18_support/comparisons/categories/94565.cc:
2392         Likewise.
2393         * testsuite/18_support/comparisons/categories/partialord.cc:
2394         Likewise.
2395         * testsuite/18_support/comparisons/categories/strongord.cc:
2396         Likewise.
2397         * testsuite/18_support/comparisons/categories/weakord.cc:
2398         Likewise.
2399         * testsuite/18_support/comparisons/categories/zero_neg.cc:
2400         Likewise.
2401         * testsuite/18_support/comparisons/common/1.cc: Likewise.
2402         * testsuite/18_support/comparisons/object/93479.cc: Likewise.
2403         * testsuite/18_support/comparisons/object/lwg3530.cc: Likewise.
2404
2405 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2406
2407         * testsuite/29_atomics/atomic/compare_exchange_padding.cc:
2408         Remove dg-options -std=gnu++2a.
2409         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
2410         * testsuite/29_atomics/atomic/lock_free_aliases.cc: Likewise.
2411         * testsuite/29_atomics/atomic/requirements/types_neg.cc:
2412         Likewise.
2413         * testsuite/29_atomics/atomic/wait_notify/1.cc: Likewise.
2414         * testsuite/29_atomics/atomic/wait_notify/100334.cc: Likewise.
2415         * testsuite/29_atomics/atomic/wait_notify/102994.cc: Likewise.
2416         * testsuite/29_atomics/atomic/wait_notify/2.cc: Likewise.
2417         * testsuite/29_atomics/atomic/wait_notify/bool.cc: Likewise.
2418         * testsuite/29_atomics/atomic/wait_notify/generic.cc: Likewise.
2419         * testsuite/29_atomics/atomic/wait_notify/pointers.cc: Likewise.
2420         * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Likewise.
2421         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Likewise.
2422         * testsuite/29_atomics/atomic_flag/test/implicit.cc: Likewise.
2423         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc: Likewise.
2424         * testsuite/29_atomics/atomic_float/1.cc: Likewise.
2425         * testsuite/29_atomics/atomic_float/95282.cc: Likewise.
2426         * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
2427         * testsuite/29_atomics/atomic_float/value_init.cc: Likewise.
2428         * testsuite/29_atomics/atomic_float/wait_notify.cc: Likewise.
2429         * testsuite/29_atomics/atomic_integral/cons/value_init.cc:
2430         Likewise.
2431         * testsuite/29_atomics/atomic_integral/wait_notify.cc: Likewise.
2432         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc:
2433         Likewise.
2434         * testsuite/29_atomics/atomic_ref/deduction.cc: Likewise.
2435         * testsuite/29_atomics/atomic_ref/float.cc: Likewise.
2436         * testsuite/29_atomics/atomic_ref/generic.cc: Likewise.
2437         * testsuite/29_atomics/atomic_ref/integral.cc: Likewise.
2438         * testsuite/29_atomics/atomic_ref/pointer.cc: Likewise.
2439         * testsuite/29_atomics/atomic_ref/requirements.cc: Likewise.
2440         * testsuite/29_atomics/headers/atomic/types_std_c++20.cc:
2441         Likewise.
2442         * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc:
2443         Likewise.
2444         * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc:
2445         Likewise.
2446         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc:
2447         Likewise.
2448
2449 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2450
2451         * testsuite/27_io/basic_filebuf/native_handle/char/1.cc: New test.
2452         * testsuite/27_io/basic_filebuf/native_handle/wchar_t/1.cc: New test.
2453
2454 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2455
2456         * acinclude.m4 (GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES): New
2457         macro.
2458         * config.h.in: Regenerate.
2459         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export new
2460         basic_filebuf members.
2461         * config/io/basic_file_stdio.cc (__basic_file::native_handle):
2462         Define new function.
2463         * config/io/basic_file_stdio.h (__basic_file::native_handle):
2464         Declare new function.
2465         * configure: Regenerate.
2466         * configure.ac: Use GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES.
2467         * include/bits/version.def (fstream_native_handles): New macro.
2468         * include/bits/version.h: Regenerate.
2469         * include/std/fstream (basic_filebuf::native_handle)
2470         (basic_fstream::native_handle, basic_ifstream::native_handle)
2471         (basic_ofstream::native_handle): New functions.
2472         * src/c++11/Makefile.am: Move compilation of basic_file.cc,
2473         locale_init.cc and localename.cc to here.
2474         * src/c++11/Makefile.in: Regenerate.
2475         * src/c++98/locale_init.cc: Moved to...
2476         * src/c++11/locale_init.cc: ...here.
2477         * src/c++98/localename.cc: Moved to...
2478         * src/c++11/localename.cc: ...here.
2479         * src/c++98/Makefile.am: Remove basic_file.cc, locale_init.cc
2480         and localename.cc from here.
2481         * src/c++98/Makefile.in: Regenerate.
2482         * testsuite/27_io/basic_filebuf/native_handle/version.cc: New test.
2483         * testsuite/27_io/basic_fstream/native_handle/char/1.cc: New test.
2484         * testsuite/27_io/basic_fstream/native_handle/wchar_t/1.cc: New test.
2485         * testsuite/27_io/basic_ifstream/native_handle/char/1.cc: New test.
2486         * testsuite/27_io/basic_ifstream/native_handle/wchar_t/1.cc: New test.
2487         * testsuite/27_io/basic_ofstream/native_handle/char/1.cc: New test.
2488         * testsuite/27_io/basic_ofstream/native_handle/wchar_t/1.cc: New test.
2489
2490 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2491
2492         * testsuite/libstdc++-dg/conformance.exp: Add log line when
2493         using testsuite_files.
2494
2495 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2496
2497         * testsuite/20_util/shared_ptr/atomic/3.cc: Simplify dg
2498         directives.
2499         * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
2500         Likewise.
2501         * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc:
2502         Likewise.
2503         * testsuite/20_util/synchronized_pool_resource/allocate.cc:
2504         Likewise.
2505         * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
2506         Likewise.
2507         * testsuite/20_util/synchronized_pool_resource/cons.cc:
2508         Likewise.
2509         * testsuite/20_util/synchronized_pool_resource/cons_single.cc:
2510         Likewise.
2511         * testsuite/20_util/synchronized_pool_resource/is_equal.cc:
2512         Likewise.
2513         * testsuite/20_util/synchronized_pool_resource/multithreaded.cc:
2514         Likewise.
2515         * testsuite/20_util/synchronized_pool_resource/options.cc:
2516         Likewise.
2517         * testsuite/20_util/synchronized_pool_resource/release.cc:
2518         Likewise.
2519         * testsuite/20_util/synchronized_pool_resource/release_single.cc:
2520         Likewise.
2521         * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
2522         Likewise.
2523         * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
2524         Likewise.
2525         * testsuite/30_threads/stop_token/stop_callback/destroy.cc:
2526         Likewise.
2527
2528 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2529
2530         * testsuite/23_containers/span/back_assert_neg.cc: Remove
2531         dg-options and add effective target selector to dg-do. Add
2532         no_pch.
2533         * testsuite/23_containers/span/back_neg.cc: Likewise.
2534         * testsuite/23_containers/span/cons_1_assert_neg.cc: Likewise.
2535         * testsuite/23_containers/span/cons_2_assert_neg.cc: Likewise.
2536         * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
2537         * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
2538         * testsuite/23_containers/span/first_neg.cc: Likewise.
2539         * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
2540         * testsuite/23_containers/span/front_neg.cc: Likewise.
2541         * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
2542         * testsuite/23_containers/span/index_op_neg.cc: Likewise.
2543         * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
2544         * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
2545         * testsuite/23_containers/span/last_neg.cc: Likewise.
2546         * testsuite/23_containers/span/subspan_2_assert_neg.cc:
2547         Likewise.
2548         * testsuite/23_containers/span/subspan_3_assert_neg.cc:
2549         Likewise.
2550         * testsuite/23_containers/span/subspan_4_assert_neg.cc:
2551         Likewise.
2552         * testsuite/23_containers/span/subspan_5_assert_neg.cc:
2553         Likewise.
2554         * testsuite/23_containers/span/subspan_6_assert_neg.cc:
2555         Likewise.
2556         * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
2557         * testsuite/23_containers/span/subspan_neg.cc: Likewise.
2558         * testsuite/24_iterators/range_operations/advance_debug_neg.cc:
2559         Likewise.
2560
2561 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2562
2563         * testsuite/18_support/headers/limits/synopsis_cxx23.cc: Remove
2564         dg-options.
2565         * testsuite/18_support/headers/stdfloat/types_std.cc: Likewise.
2566         * testsuite/18_support/type_info/constexpr.cc: Likewise.
2567         * testsuite/19_diagnostics/stacktrace/current.cc: Likewise.
2568         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
2569         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
2570         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Likewise.
2571         * testsuite/19_diagnostics/stacktrace/version.cc: Likewise.
2572         * testsuite/20_util/aligned_storage/deprecated-2b.cc: Likewise.
2573         * testsuite/20_util/aligned_union/deprecated-2b.cc: Likewise.
2574         * testsuite/20_util/bitset/access/constexpr.cc: Likewise.
2575         * testsuite/20_util/bitset/cons/constexpr_c++23.cc: Likewise.
2576         * testsuite/20_util/bitset/count/constexpr.cc: Likewise.
2577         * testsuite/20_util/bitset/ext/constexpr.cc: Likewise.
2578         * testsuite/20_util/bitset/operations/constexpr_c++23.cc:
2579         Likewise.
2580         * testsuite/20_util/bitset/version.cc: Likewise.
2581         * testsuite/20_util/from_chars/8.cc: Likewise.
2582         * testsuite/20_util/from_chars/constexpr.cc: Likewise.
2583         * testsuite/20_util/function/cons/deduction_c++23.cc: Likewise.
2584         * testsuite/20_util/function_objects/invoke/4.cc: Likewise.
2585         * testsuite/20_util/function_objects/invoke/dangling_ref.cc:
2586         Likewise.
2587         * testsuite/20_util/is_scoped_enum/value.cc: Likewise.
2588         * testsuite/20_util/is_scoped_enum/version.cc: Likewise.
2589         * testsuite/20_util/move_only_function/call.cc: Likewise.
2590         * testsuite/20_util/move_only_function/cons.cc: Likewise.
2591         * testsuite/20_util/move_only_function/move.cc: Likewise.
2592         * testsuite/20_util/move_only_function/version.cc: Likewise.
2593         * testsuite/20_util/optional/monadic/and_then.cc: Likewise.
2594         * testsuite/20_util/optional/monadic/or_else.cc: Likewise.
2595         * testsuite/20_util/optional/monadic/or_else_neg.cc: Likewise.
2596         * testsuite/20_util/optional/monadic/pr109242.cc: Likewise.
2597         * testsuite/20_util/optional/monadic/transform.cc: Likewise.
2598         * testsuite/20_util/pair/p2321r2.cc: Likewise.
2599         * testsuite/20_util/reference_from_temporary/value.cc: Likewise.
2600         * testsuite/20_util/reference_from_temporary/value2.cc:
2601         Likewise.
2602         * testsuite/20_util/reference_from_temporary/version.cc:
2603         Likewise.
2604         * testsuite/20_util/to_chars/constexpr.cc: Likewise.
2605         * testsuite/20_util/to_chars/float128_c++23.cc: Likewise.
2606         * testsuite/20_util/to_chars/float16_c++23.cc: Likewise.
2607         * testsuite/20_util/to_chars/version.cc: Likewise.
2608         * testsuite/20_util/to_underlying/1.cc: Likewise.
2609         * testsuite/20_util/to_underlying/version.cc: Likewise.
2610         * testsuite/20_util/tuple/p2321r2.cc: Likewise.
2611         * testsuite/20_util/unique_ptr/assign/constexpr.cc: Likewise.
2612         * testsuite/20_util/unique_ptr/comparison/constexpr.cc:
2613         Likewise.
2614         * testsuite/20_util/unique_ptr/cons/constexpr_c++20.cc:
2615         Likewise.
2616         * testsuite/20_util/unique_ptr/creation/constexpr.cc: Likewise.
2617         * testsuite/20_util/unique_ptr/modifiers/constexpr.cc: Likewise.
2618         * testsuite/20_util/unique_ptr/specialized_algorithms/constexpr.cc: Likewise.
2619         * testsuite/20_util/unreachable/1.cc: Likewise.
2620         * testsuite/20_util/unreachable/version.cc: Likewise.
2621         * testsuite/20_util/uses_allocator/lwg3677.cc: Likewise.
2622         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc: Likewise.
2623         * testsuite/21_strings/basic_string/operations/contains/char.cc:
2624         Likewise.
2625         * testsuite/21_strings/basic_string/operations/contains/nonnull.cc: Likewise.
2626         * testsuite/21_strings/basic_string/operations/contains/wchar_t.cc: Likewise.
2627         * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc: Likewise.
2628         * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc: Likewise.
2629         * testsuite/21_strings/basic_string_view/operations/contains/char.cc: Likewise.
2630         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc: Likewise.
2631         * testsuite/21_strings/basic_string_view/operations/contains/nonnull.cc: Likewise.
2632         * testsuite/21_strings/basic_string_view/operations/contains/wchar_t.cc: Likewise.
2633         * testsuite/23_containers/queue/cons_from_iters.cc: Likewise.
2634         * testsuite/23_containers/stack/cons_from_iters.cc: Likewise.
2635         * testsuite/23_containers/vector/bool/element_access/1.cc:
2636         Likewise.
2637         * testsuite/24_iterators/const_iterator/1.cc: Likewise.
2638         * testsuite/25_algorithms/contains/1.cc: Likewise.
2639         * testsuite/25_algorithms/contains_subrange/1.cc: Likewise.
2640         * testsuite/25_algorithms/find_last/1.cc: Likewise.
2641         * testsuite/25_algorithms/find_last_if/1.cc: Likewise.
2642         * testsuite/25_algorithms/find_last_if_not/1.cc: Likewise.
2643         * testsuite/25_algorithms/fold_left/1.cc: Likewise.
2644         * testsuite/25_algorithms/fold_right/1.cc: Likewise.
2645         * testsuite/25_algorithms/iota/1.cc: Likewise.
2646         * testsuite/26_numerics/bit/bit.byteswap/byteswap.cc: Likewise.
2647         * testsuite/26_numerics/bit/bit.byteswap/version.cc: Likewise.
2648         * testsuite/26_numerics/complex/ext_c++23.cc: Likewise.
2649         * testsuite/26_numerics/headers/cmath/c99_classification_macros_c++23.cc: Likewise.
2650         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc:
2651         Likewise.
2652         * testsuite/26_numerics/headers/cmath/functions_std_c++23.cc:
2653         Likewise.
2654         * testsuite/26_numerics/headers/cmath/nextafter_c++23.cc:
2655         Likewise.
2656         * testsuite/26_numerics/numbers/4.cc: Likewise.
2657         * testsuite/27_io/basic_ostream/inserters_other/char/volatile_ptr.cc: Likewise.
2658         * testsuite/27_io/filesystem/path/native/conv_c++23.cc:
2659         Likewise.
2660         * testsuite/27_io/spanstream/1.cc: Likewise.
2661         * testsuite/27_io/spanstream/2.cc: Likewise.
2662         * testsuite/27_io/spanstream/version.cc: Likewise.
2663         * testsuite/29_atomics/atomic_float/requirements_cxx23.cc:
2664         Likewise.
2665         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
2666         Likewise.
2667         * testsuite/29_atomics/headers/stdatomic.h/version.cc: Likewise.
2668         * testsuite/30_threads/packaged_task/cons/deduction_c++23.cc:
2669         Likewise.
2670         * testsuite/experimental/filesystem/path/native/conv_c++23.cc:
2671         Likewise.
2672         * testsuite/std/ranges/adaptors/adjacent/1.cc: Likewise.
2673         * testsuite/std/ranges/adaptors/adjacent_transform/1.cc:
2674         Likewise.
2675         * testsuite/std/ranges/adaptors/as_const/1.cc: Likewise.
2676         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
2677         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
2678         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
2679         * testsuite/std/ranges/adaptors/enumerate/1.cc: Likewise.
2680         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
2681         * testsuite/std/ranges/adaptors/lwg3715.cc: Likewise.
2682         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
2683         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
2684         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
2685         * testsuite/std/ranges/range_adaptor_closure.cc: Likewise.
2686         * testsuite/std/ranges/repeat/1.cc: Likewise.
2687         * testsuite/std/ranges/version_c++23.cc: Likewise.
2688         * testsuite/std/ranges/zip/1.cc: Likewise.
2689         * testsuite/std/ranges/zip_transform/1.cc: Likewise.
2690
2691 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2692
2693         * testsuite/20_util/expected/assign.cc: Remove dg-options.
2694         * testsuite/20_util/expected/bad.cc: Likewise.
2695         * testsuite/20_util/expected/cons.cc: Likewise.
2696         * testsuite/20_util/expected/equality.cc: Likewise.
2697         * testsuite/20_util/expected/illformed_neg.cc: Likewise.
2698         * testsuite/20_util/expected/lwg3877.cc: Likewise.
2699         * testsuite/20_util/expected/lwg3938.cc: Likewise.
2700         * testsuite/20_util/expected/monadic.cc: Likewise.
2701         * testsuite/20_util/expected/observers.cc: Likewise.
2702         * testsuite/20_util/expected/requirements.cc: Likewise.
2703         * testsuite/20_util/expected/swap.cc: Likewise.
2704         * testsuite/20_util/expected/synopsis.cc: Likewise.
2705         * testsuite/20_util/expected/unexpected.cc: Likewise.
2706         * testsuite/20_util/expected/version.cc: Likewise.
2707
2708 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2709
2710         * testsuite/20_util/duration/arithmetic/overflow_c++20.cc:
2711         Remove dg-options.
2712         * testsuite/20_util/duration/io.cc: Likewise.
2713         * testsuite/std/time/clock/file/io.cc: Likewise.
2714         * testsuite/std/time/clock/file/members.cc: Likewise.
2715         * testsuite/std/time/clock/file/overview.cc: Likewise.
2716         * testsuite/std/time/clock/gps/1.cc: Likewise.
2717         * testsuite/std/time/clock/gps/io.cc: Likewise.
2718         * testsuite/std/time/clock/local/io.cc: Likewise.
2719         * testsuite/std/time/clock/system/io.cc: Likewise.
2720         * testsuite/std/time/clock/tai/1.cc: Likewise.
2721         * testsuite/std/time/clock/tai/io.cc: Likewise.
2722         * testsuite/std/time/clock/utc/1.cc: Likewise.
2723         * testsuite/std/time/clock/utc/io.cc: Likewise.
2724         * testsuite/std/time/clock/utc/leap_second_info.cc: Likewise.
2725         * testsuite/std/time/day/1.cc: Likewise.
2726         * testsuite/std/time/day/io.cc: Likewise.
2727         * testsuite/std/time/exceptions.cc: Likewise.
2728         * testsuite/std/time/format.cc: Likewise.
2729         * testsuite/std/time/hh_mm_ss/1.cc: Likewise.
2730         * testsuite/std/time/hh_mm_ss/109772.cc: Likewise.
2731         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
2732         * testsuite/std/time/is_am/1.cc: Likewise.
2733         * testsuite/std/time/is_pm/1.cc: Likewise.
2734         * testsuite/std/time/make12/1.cc: Likewise.
2735         * testsuite/std/time/make24/1.cc: Likewise.
2736         * testsuite/std/time/month/1.cc: Likewise.
2737         * testsuite/std/time/month/io.cc: Likewise.
2738         * testsuite/std/time/month_day/1.cc: Likewise.
2739         * testsuite/std/time/month_day/io.cc: Likewise.
2740         * testsuite/std/time/month_day_last/1.cc: Likewise.
2741         * testsuite/std/time/month_day_last/io.cc: Likewise.
2742         * testsuite/std/time/month_weekday/1.cc: Likewise.
2743         * testsuite/std/time/month_weekday/io.cc: Likewise.
2744         * testsuite/std/time/month_weekday_last/1.cc: Likewise.
2745         * testsuite/std/time/month_weekday_last/io.cc: Likewise.
2746         * testsuite/std/time/parse.cc: Likewise.
2747         * testsuite/std/time/syn_c++20.cc: Likewise.
2748         * testsuite/std/time/time_zone/get_info_local.cc: Likewise.
2749         * testsuite/std/time/time_zone/get_info_sys.cc: Likewise.
2750         * testsuite/std/time/time_zone/requirements.cc: Likewise.
2751         * testsuite/std/time/traits/is_clock.cc: Likewise.
2752         * testsuite/std/time/tzdb/1.cc: Likewise.
2753         * testsuite/std/time/tzdb/leap_seconds.cc: Likewise.
2754         * testsuite/std/time/tzdb_list/1.cc: Likewise.
2755         * testsuite/std/time/tzdb_list/requirements.cc: Likewise.
2756         * testsuite/std/time/weekday/1.cc: Likewise.
2757         * testsuite/std/time/weekday/io.cc: Likewise.
2758         * testsuite/std/time/weekday_indexed/io.cc: Likewise.
2759         * testsuite/std/time/weekday_last/1.cc: Likewise.
2760         * testsuite/std/time/weekday_last/io.cc: Likewise.
2761         * testsuite/std/time/year/1.cc: Likewise.
2762         * testsuite/std/time/year/2.cc: Likewise.
2763         * testsuite/std/time/year/io.cc: Likewise.
2764         * testsuite/std/time/weekday_indexed/1.cc: Likewise.
2765         * testsuite/std/time/year_month/1.cc: Likewise.
2766         * testsuite/std/time/year_month/2.cc: Likewise.
2767         * testsuite/std/time/year_month/io.cc: Likewise.
2768         * testsuite/std/time/year_month_day/1.cc: Likewise.
2769         * testsuite/std/time/year_month_day/2.cc: Likewise.
2770         * testsuite/std/time/year_month_day/3.cc: Likewise.
2771         * testsuite/std/time/year_month_day/4.cc: Likewise.
2772         * testsuite/std/time/year_month_day/io.cc: Likewise.
2773         * testsuite/std/time/year_month_day_last/1.cc: Likewise.
2774         * testsuite/std/time/year_month_day_last/2.cc: Likewise.
2775         * testsuite/std/time/year_month_day_last/io.cc: Likewise.
2776         * testsuite/std/time/year_month_weekday/1.cc: Likewise.
2777         * testsuite/std/time/year_month_weekday/2.cc: Likewise.
2778         * testsuite/std/time/year_month_weekday/3.cc: Likewise.
2779         * testsuite/std/time/year_month_weekday/io.cc: Likewise.
2780         * testsuite/std/time/year_month_weekday_last/1.cc: Likewise.
2781         * testsuite/std/time/year_month_weekday_last/2.cc: Likewise.
2782         * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
2783         * testsuite/std/time/zoned_time/1.cc: Likewise.
2784         * testsuite/std/time/zoned_time/custom.cc: Likewise.
2785         * testsuite/std/time/zoned_time/deduction.cc: Likewise.
2786         * testsuite/std/time/zoned_time/io.cc: Likewise.
2787         * testsuite/std/time/zoned_time/req_neg.cc: Likewise.
2788         * testsuite/std/time/zoned_time/requirements.cc: Likewise.
2789         * testsuite/std/time/zoned_traits.cc: Likewise.
2790
2791 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2792
2793         * testsuite/std/format/arguments/args.cc: Remove dg-options.
2794         * testsuite/std/format/arguments/lwg3810.cc: Likewise.
2795         * testsuite/std/format/error.cc: Likewise.
2796         * testsuite/std/format/format_string.cc: Likewise.
2797         * testsuite/std/format/formatter/concept.cc: Likewise.
2798         * testsuite/std/format/formatter/ext_float.cc: Likewise.
2799         * testsuite/std/format/formatter/requirements.cc: Likewise.
2800         * testsuite/std/format/functions/107871.cc: Likewise.
2801         * testsuite/std/format/functions/format.cc: Likewise.
2802         * testsuite/std/format/functions/format_to.cc: Likewise.
2803         * testsuite/std/format/functions/format_to_n.cc: Likewise.
2804         * testsuite/std/format/functions/size.cc: Likewise.
2805         * testsuite/std/format/functions/vformat_to.cc: Likewise.
2806         * testsuite/std/format/parse_ctx.cc: Likewise.
2807         * testsuite/std/format/string.cc: Likewise.
2808         * testsuite/std/format/string_neg.cc: Likewise.
2809         * testsuite/std/format/functions/format_c++23.cc: Removed.
2810
2811 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2812
2813         * testsuite/20_util/function_objects/range.cmp/equal_to.cc:
2814         Remove dg-options.
2815         * testsuite/20_util/function_objects/range.cmp/greater.cc:
2816         Likewise.
2817         * testsuite/20_util/function_objects/range.cmp/greater_equal.cc:
2818         Likewise.
2819         * testsuite/20_util/function_objects/range.cmp/less.cc:
2820         Likewise.
2821         * testsuite/20_util/function_objects/range.cmp/less_equal.cc:
2822         Likewise.
2823         * testsuite/20_util/function_objects/range.cmp/lwg3530.cc:
2824         Likewise.
2825         * testsuite/20_util/function_objects/range.cmp/not_equal_to.cc:
2826         Likewise.
2827         * testsuite/20_util/specialized_algorithms/construct_at/1.cc:
2828         Likewise.
2829         * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
2830         Likewise.
2831         * testsuite/20_util/specialized_algorithms/construct_at/95788.cc:
2832         Likewise.
2833         * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
2834         Likewise.
2835         * testsuite/20_util/specialized_algorithms/uninitialized_copy/constrained.cc:
2836         Likewise.
2837         * testsuite/20_util/specialized_algorithms/uninitialized_default_construct/constrained.cc:
2838         Likewise.
2839         * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
2840         Likewise.
2841         * testsuite/20_util/specialized_algorithms/uninitialized_fill/constrained.cc:
2842         Likewise.
2843         * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
2844         Likewise.
2845         * testsuite/20_util/specialized_algorithms/uninitialized_move/constrained.cc:
2846         Likewise.
2847         * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/constrained.cc:
2848         Likewise.
2849         * testsuite/25_algorithms/adjacent_find/constexpr.cc: Likewise.
2850         * testsuite/25_algorithms/adjacent_find/constrained.cc:
2851         Likewise.
2852         * testsuite/25_algorithms/all_of/constexpr.cc: Likewise.
2853         * testsuite/25_algorithms/all_of/constrained.cc: Likewise.
2854         * testsuite/25_algorithms/any_of/constexpr.cc: Likewise.
2855         * testsuite/25_algorithms/any_of/constrained.cc: Likewise.
2856         * testsuite/25_algorithms/binary_search/constexpr.cc: Likewise.
2857         * testsuite/25_algorithms/binary_search/constrained.cc:
2858         Likewise.
2859         * testsuite/25_algorithms/clamp/constrained.cc: Likewise.
2860         * testsuite/25_algorithms/constexpr_macro.cc: Likewise.
2861         * testsuite/25_algorithms/copy/95578.cc: Likewise.
2862         * testsuite/25_algorithms/copy/constexpr.cc: Likewise.
2863         * testsuite/25_algorithms/copy/constrained.cc: Likewise.
2864         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Likewise.
2865         * testsuite/25_algorithms/copy_backward/95578.cc: Likewise.
2866         * testsuite/25_algorithms/copy_backward/constexpr.cc: Likewise.
2867         * testsuite/25_algorithms/copy_backward/constrained.cc:
2868         Likewise.
2869         * testsuite/25_algorithms/copy_backward/debug/constexpr_neg.cc:
2870         Likewise.
2871         * testsuite/25_algorithms/copy_if/constexpr.cc: Likewise.
2872         * testsuite/25_algorithms/copy_if/constrained.cc: Likewise.
2873         * testsuite/25_algorithms/copy_n/constexpr.cc: Likewise.
2874         * testsuite/25_algorithms/copy_n/constrained.cc: Likewise.
2875         * testsuite/25_algorithms/count/constexpr.cc: Likewise.
2876         * testsuite/25_algorithms/count/constrained.cc: Likewise.
2877         * testsuite/25_algorithms/count_if/constexpr.cc: Likewise.
2878         * testsuite/25_algorithms/count_if/constrained.cc: Likewise.
2879         * testsuite/25_algorithms/cpp_lib_constexpr.cc: Likewise.
2880         * testsuite/25_algorithms/equal/95578.cc: Likewise.
2881         * testsuite/25_algorithms/equal/constexpr.cc: Likewise.
2882         * testsuite/25_algorithms/equal/constexpr_neg.cc: Likewise.
2883         * testsuite/25_algorithms/equal/constrained.cc: Likewise.
2884         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
2885         Likewise.
2886         * testsuite/25_algorithms/equal_range/constexpr.cc: Likewise.
2887         * testsuite/25_algorithms/equal_range/constrained.cc: Likewise.
2888         * testsuite/25_algorithms/fill/94017.cc: Likewise.
2889         * testsuite/25_algorithms/fill/constexpr.cc: Likewise.
2890         * testsuite/25_algorithms/fill/constrained.cc: Likewise.
2891         * testsuite/25_algorithms/fill_n/94017.cc: Likewise.
2892         * testsuite/25_algorithms/fill_n/constexpr.cc: Likewise.
2893         * testsuite/25_algorithms/fill_n/constrained.cc: Likewise.
2894         * testsuite/25_algorithms/find/constexpr.cc: Likewise.
2895         * testsuite/25_algorithms/find/constrained.cc: Likewise.
2896         * testsuite/25_algorithms/find_end/constexpr.cc: Likewise.
2897         * testsuite/25_algorithms/find_end/constrained.cc: Likewise.
2898         * testsuite/25_algorithms/find_first_of/constexpr.cc: Likewise.
2899         * testsuite/25_algorithms/find_first_of/constrained.cc:
2900         Likewise.
2901         * testsuite/25_algorithms/find_if/constexpr.cc: Likewise.
2902         * testsuite/25_algorithms/find_if/constrained.cc: Likewise.
2903         * testsuite/25_algorithms/find_if_not/constexpr.cc: Likewise.
2904         * testsuite/25_algorithms/find_if_not/constrained.cc: Likewise.
2905         * testsuite/25_algorithms/for_each/constexpr.cc: Likewise.
2906         * testsuite/25_algorithms/for_each/constrained.cc: Likewise.
2907         * testsuite/25_algorithms/generate/constexpr.cc: Likewise.
2908         * testsuite/25_algorithms/generate/constrained.cc: Likewise.
2909         * testsuite/25_algorithms/generate_n/constexpr.cc: Likewise.
2910         * testsuite/25_algorithms/generate_n/constrained.cc: Likewise.
2911         * testsuite/25_algorithms/heap/constrained.cc: Likewise.
2912         * testsuite/25_algorithms/includes/constrained.cc: Likewise.
2913         * testsuite/25_algorithms/inplace_merge/constrained.cc:
2914         Likewise.
2915         * testsuite/25_algorithms/is_heap/constexpr.cc: Likewise.
2916         * testsuite/25_algorithms/is_heap_until/constexpr.cc: Likewise.
2917         * testsuite/25_algorithms/is_partitioned/constexpr.cc: Likewise.
2918         * testsuite/25_algorithms/is_partitioned/constrained.cc:
2919         Likewise.
2920         * testsuite/25_algorithms/is_permutation/constexpr.cc: Likewise.
2921         * testsuite/25_algorithms/is_permutation/constrained.cc:
2922         Likewise.
2923         * testsuite/25_algorithms/is_sorted/constexpr.cc: Likewise.
2924         * testsuite/25_algorithms/is_sorted/constrained.cc: Likewise.
2925         * testsuite/25_algorithms/is_sorted_until/constexpr.cc:
2926         Likewise.
2927         * testsuite/25_algorithms/is_sorted_until/constrained.cc:
2928         Likewise.
2929         * testsuite/25_algorithms/iter_swap/constexpr.cc: Likewise.
2930         * testsuite/25_algorithms/lexicographical_compare/93972.cc:
2931         Likewise.
2932         * testsuite/25_algorithms/lexicographical_compare/95578.cc:
2933         Likewise.
2934         * testsuite/25_algorithms/lexicographical_compare/constexpr.cc:
2935         Likewise.
2936         * testsuite/25_algorithms/lexicographical_compare/constrained.cc:
2937         Likewise.
2938         * testsuite/25_algorithms/lexicographical_compare_three_way/1.cc:
2939         Likewise.
2940         * testsuite/25_algorithms/lexicographical_compare_three_way/constexpr.cc:
2941         Likewise.
2942         * testsuite/25_algorithms/lower_bound/constexpr.cc: Likewise.
2943         * testsuite/25_algorithms/lower_bound/constrained.cc: Likewise.
2944         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_neg.cc:
2945         Likewise.
2946         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_pred_neg.cc:
2947         Likewise.
2948         * testsuite/25_algorithms/lower_bound/debug/constexpr_valid_range_neg.cc:
2949         Likewise.
2950         * testsuite/25_algorithms/make_heap/constexpr.cc: Likewise.
2951         * testsuite/25_algorithms/max/constrained.cc: Likewise.
2952         * testsuite/25_algorithms/max_element/constrained.cc: Likewise.
2953         * testsuite/25_algorithms/merge/constexpr.cc: Likewise.
2954         * testsuite/25_algorithms/merge/constrained.cc: Likewise.
2955         * testsuite/25_algorithms/min/constrained.cc: Likewise.
2956         * testsuite/25_algorithms/min_element/constrained.cc: Likewise.
2957         * testsuite/25_algorithms/minmax/constrained.cc: Likewise.
2958         * testsuite/25_algorithms/minmax_element/constrained.cc:
2959         Likewise.
2960         * testsuite/25_algorithms/mismatch/constexpr.cc: Likewise.
2961         * testsuite/25_algorithms/mismatch/constrained.cc: Likewise.
2962         * testsuite/25_algorithms/move/93872.cc: Likewise.
2963         * testsuite/25_algorithms/move/95578.cc: Likewise.
2964         * testsuite/25_algorithms/move/constexpr.cc: Likewise.
2965         * testsuite/25_algorithms/move/constrained.cc: Likewise.
2966         * testsuite/25_algorithms/move_backward/93872.cc: Likewise.
2967         * testsuite/25_algorithms/move_backward/95578.cc: Likewise.
2968         * testsuite/25_algorithms/move_backward/constrained.cc:
2969         Likewise.
2970         * testsuite/25_algorithms/next_permutation/constexpr.cc:
2971         Likewise.
2972         * testsuite/25_algorithms/next_permutation/constrained.cc:
2973         Likewise.
2974         * testsuite/25_algorithms/none_of/constexpr.cc: Likewise.
2975         * testsuite/25_algorithms/none_of/constrained.cc: Likewise.
2976         * testsuite/25_algorithms/nth_element/constexpr.cc: Likewise.
2977         * testsuite/25_algorithms/nth_element/constrained.cc: Likewise.
2978         * testsuite/25_algorithms/partial_sort/constexpr.cc: Likewise.
2979         * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
2980         * testsuite/25_algorithms/partial_sort_copy/constexpr.cc:
2981         Likewise.
2982         * testsuite/25_algorithms/partial_sort_copy/constrained.cc:
2983         Likewise.
2984         * testsuite/25_algorithms/partition/constexpr.cc: Likewise.
2985         * testsuite/25_algorithms/partition/constrained.cc: Likewise.
2986         * testsuite/25_algorithms/partition_copy/constexpr.cc: Likewise.
2987         * testsuite/25_algorithms/partition_copy/constrained.cc:
2988         Likewise.
2989         * testsuite/25_algorithms/partition_point/constexpr.cc:
2990         Likewise.
2991         * testsuite/25_algorithms/partition_point/constrained.cc:
2992         Likewise.
2993         * testsuite/25_algorithms/pop_heap/constexpr.cc: Likewise.
2994         * testsuite/25_algorithms/prev_permutation/constexpr.cc:
2995         Likewise.
2996         * testsuite/25_algorithms/prev_permutation/constrained.cc:
2997         Likewise.
2998         * testsuite/25_algorithms/push_heap/constexpr.cc: Likewise.
2999         * testsuite/25_algorithms/remove/constexpr.cc: Likewise.
3000         * testsuite/25_algorithms/remove/constrained.cc: Likewise.
3001         * testsuite/25_algorithms/remove_copy/constexpr.cc: Likewise.
3002         * testsuite/25_algorithms/remove_copy/constrained.cc: Likewise.
3003         * testsuite/25_algorithms/remove_copy_if/constexpr.cc: Likewise.
3004         * testsuite/25_algorithms/remove_copy_if/constrained.cc:
3005         Likewise.
3006         * testsuite/25_algorithms/remove_if/constexpr.cc: Likewise.
3007         * testsuite/25_algorithms/remove_if/constrained.cc: Likewise.
3008         * testsuite/25_algorithms/replace/constrained.cc: Likewise.
3009         * testsuite/25_algorithms/replace_copy/constexpr.cc: Likewise.
3010         * testsuite/25_algorithms/replace_copy/constrained.cc: Likewise.
3011         * testsuite/25_algorithms/replace_copy_if/constexpr.cc:
3012         Likewise.
3013         * testsuite/25_algorithms/replace_copy_if/constrained.cc:
3014         Likewise.
3015         * testsuite/25_algorithms/replace_if/constexpr.cc: Likewise.
3016         * testsuite/25_algorithms/replace_if/constrained.cc: Likewise.
3017         * testsuite/25_algorithms/reverse/constexpr.cc: Likewise.
3018         * testsuite/25_algorithms/reverse/constrained.cc: Likewise.
3019         * testsuite/25_algorithms/reverse_copy/constexpr.cc: Likewise.
3020         * testsuite/25_algorithms/reverse_copy/constrained.cc: Likewise.
3021         * testsuite/25_algorithms/rotate/constexpr.cc: Likewise.
3022         * testsuite/25_algorithms/rotate/constrained.cc: Likewise.
3023         * testsuite/25_algorithms/rotate_copy/constexpr.cc: Likewise.
3024         * testsuite/25_algorithms/rotate_copy/constrained.cc: Likewise.
3025         * testsuite/25_algorithms/sample/constrained.cc: Likewise.
3026         * testsuite/25_algorithms/search/constexpr.cc: Likewise.
3027         * testsuite/25_algorithms/search/constrained.cc: Likewise.
3028         * testsuite/25_algorithms/search_n/97828.cc: Likewise.
3029         * testsuite/25_algorithms/search_n/constexpr.cc: Likewise.
3030         * testsuite/25_algorithms/search_n/constrained.cc: Likewise.
3031         * testsuite/25_algorithms/set_difference/constexpr.cc: Likewise.
3032         * testsuite/25_algorithms/set_difference/constrained.cc:
3033         Likewise.
3034         * testsuite/25_algorithms/set_intersection/constexpr.cc:
3035         Likewise.
3036         * testsuite/25_algorithms/set_intersection/constrained.cc:
3037         Likewise.
3038         * testsuite/25_algorithms/set_symmetric_difference/constexpr.cc:
3039         Likewise.
3040         * testsuite/25_algorithms/set_symmetric_difference/constrained.cc:
3041         Likewise.
3042         * testsuite/25_algorithms/set_union/constexpr.cc: Likewise.
3043         * testsuite/25_algorithms/set_union/constrained.cc: Likewise.
3044         * testsuite/25_algorithms/shift_left/1.cc: Likewise.
3045         * testsuite/25_algorithms/shift_right/1.cc: Likewise.
3046         * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
3047         * testsuite/25_algorithms/sort/constexpr.cc: Likewise.
3048         * testsuite/25_algorithms/sort/constrained.cc: Likewise.
3049         * testsuite/25_algorithms/sort_heap/constexpr.cc: Likewise.
3050         * testsuite/25_algorithms/stable_partition/constrained.cc:
3051         Likewise.
3052         * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
3053         * testsuite/25_algorithms/swap/constexpr.cc: Likewise.
3054         * testsuite/25_algorithms/swap_ranges/constexpr.cc: Likewise.
3055         * testsuite/25_algorithms/swap_ranges/constrained.cc: Likewise.
3056         * testsuite/25_algorithms/transform/constexpr.cc: Likewise.
3057         * testsuite/25_algorithms/transform/constrained.cc: Likewise.
3058         * testsuite/25_algorithms/unique/constexpr.cc: Likewise.
3059         * testsuite/25_algorithms/unique/constrained.cc: Likewise.
3060         * testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise.
3061         * testsuite/25_algorithms/unique_copy/constrained.cc: Likewise.
3062         * testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise.
3063         * testsuite/25_algorithms/upper_bound/constrained.cc: Likewise.
3064         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_neg.cc:
3065         Likewise.
3066         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_pred_neg.cc:
3067         Likewise.
3068         * testsuite/25_algorithms/upper_bound/debug/constexpr_valid_range_neg.cc:
3069         Likewise.
3070
3071 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
3072
3073         * testsuite/std/concepts/1.cc: Remove dg-options.
3074         * testsuite/std/concepts/2.cc: Likewise.
3075         * testsuite/std/concepts/concepts.callable/invocable.cc:
3076         Likewise.
3077         * testsuite/std/concepts/concepts.callable/regular_invocable.cc:
3078         Likewise.
3079         * testsuite/std/concepts/concepts.callable/relation.cc:
3080         Likewise.
3081         * testsuite/std/concepts/concepts.callable/strictweakorder.cc:
3082         Likewise.
3083         * testsuite/std/concepts/concepts.lang/concept.arithmetic/floating_point.cc: Likewise.
3084         * testsuite/std/concepts/concepts.lang/concept.arithmetic/integral.cc: Likewise.
3085         * testsuite/std/concepts/concepts.lang/concept.arithmetic/signed_integral.cc: Likewise.
3086         * testsuite/std/concepts/concepts.lang/concept.arithmetic/unsigned_integral.cc: Likewise.
3087         * testsuite/std/concepts/concepts.lang/concept.assignable/1.cc:
3088         Likewise.
3089         * testsuite/std/concepts/concepts.lang/concept.common/1.cc:
3090         Likewise.
3091         * testsuite/std/concepts/concepts.lang/concept.commonref/1.cc:
3092         Likewise.
3093         * testsuite/std/concepts/concepts.lang/concept.constructible/1.cc: Likewise.
3094         * testsuite/std/concepts/concepts.lang/concept.convertible/1.cc:
3095         Likewise.
3096         * testsuite/std/concepts/concepts.lang/concept.copyconstructible/1.cc: Likewise.
3097         * testsuite/std/concepts/concepts.lang/concept.defaultinitializable/1.cc: Likewise.
3098         * testsuite/std/concepts/concepts.lang/concept.defaultinitializable/lwg3149.cc: Likewise.
3099         * testsuite/std/concepts/concepts.lang/concept.derived/1.cc:
3100         Likewise.
3101         * testsuite/std/concepts/concepts.lang/concept.destructible/1.cc: Likewise.
3102         * testsuite/std/concepts/concepts.lang/concept.moveconstructible/1.cc: Likewise.
3103         * testsuite/std/concepts/concepts.lang/concept.same/1.cc:
3104         Likewise.
3105         * testsuite/std/concepts/concepts.lang/concept.swappable/swap.cc: Likewise.
3106         * testsuite/std/concepts/concepts.lang/concept.swappable/swappable.cc: Likewise.
3107         * testsuite/std/concepts/concepts.lang/concept.swappable/swappable_with.cc: Likewise.
3108         * testsuite/std/concepts/concepts.object/copyable.cc: Likewise.
3109         * testsuite/std/concepts/concepts.object/movable.cc: Likewise.
3110         * testsuite/std/concepts/concepts.object/regular.cc: Likewise.
3111         * testsuite/std/concepts/concepts.object/semiregular.cc:
3112         Likewise.
3113         * testsuite/std/ranges/97600.cc: Likewise.
3114         * testsuite/std/ranges/access/101782.cc: Likewise.
3115         * testsuite/std/ranges/access/begin.cc: Likewise.
3116         * testsuite/std/ranges/access/begin_neg.cc: Likewise.
3117         * testsuite/std/ranges/access/cbegin.cc: Likewise.
3118         * testsuite/std/ranges/access/cdata.cc: Likewise.
3119         * testsuite/std/ranges/access/cend.cc: Likewise.
3120         * testsuite/std/ranges/access/crbegin.cc: Likewise.
3121         * testsuite/std/ranges/access/crend.cc: Likewise.
3122         * testsuite/std/ranges/access/data.cc: Likewise.
3123         * testsuite/std/ranges/access/empty.cc: Likewise.
3124         * testsuite/std/ranges/access/end.cc: Likewise.
3125         * testsuite/std/ranges/access/end_neg.cc: Likewise.
3126         * testsuite/std/ranges/access/lwg3467.cc: Likewise.
3127         * testsuite/std/ranges/access/p2602.cc: Likewise.
3128         * testsuite/std/ranges/access/rbegin.cc: Likewise.
3129         * testsuite/std/ranges/access/rend.cc: Likewise.
3130         * testsuite/std/ranges/access/size.cc: Likewise.
3131         * testsuite/std/ranges/access/size_neg.cc: Likewise.
3132         * testsuite/std/ranges/access/ssize.cc: Likewise.
3133         * testsuite/std/ranges/adaptors/100479.cc: Likewise.
3134         * testsuite/std/ranges/adaptors/100577.cc: Likewise.
3135         * testsuite/std/ranges/adaptors/93978.cc: Likewise.
3136         * testsuite/std/ranges/adaptors/95322.cc: Likewise.
3137         * testsuite/std/ranges/adaptors/99433.cc: Likewise.
3138         * testsuite/std/ranges/adaptors/all.cc: Likewise.
3139         * testsuite/std/ranges/adaptors/common.cc: Likewise.
3140         * testsuite/std/ranges/adaptors/conditionally_borrowed.cc:
3141         Likewise.
3142         * testsuite/std/ranges/adaptors/counted.cc: Likewise.
3143         * testsuite/std/ranges/adaptors/detail/copyable_box.cc:
3144         Likewise.
3145         * testsuite/std/ranges/adaptors/drop.cc: Likewise.
3146         * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
3147         * testsuite/std/ranges/adaptors/elements.cc: Likewise.
3148         * testsuite/std/ranges/adaptors/filter.cc: Likewise.
3149         * testsuite/std/ranges/adaptors/join.cc: Likewise.
3150         * testsuite/std/ranges/adaptors/lazy_split.cc: Likewise.
3151         * testsuite/std/ranges/adaptors/lazy_split_neg.cc: Likewise.
3152         * testsuite/std/ranges/adaptors/lwg3286.cc: Likewise.
3153         * testsuite/std/ranges/adaptors/lwg3313_neg.cc: Likewise.
3154         * testsuite/std/ranges/adaptors/lwg3325_neg.cc: Likewise.
3155         * testsuite/std/ranges/adaptors/lwg3406.cc: Likewise.
3156         * testsuite/std/ranges/adaptors/p1739.cc: Likewise.
3157         * testsuite/std/ranges/adaptors/p2281.cc: Likewise.
3158         * testsuite/std/ranges/adaptors/p2770r0.cc: Likewise.
3159         * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
3160         * testsuite/std/ranges/adaptors/sizeof.cc: Likewise.
3161         * testsuite/std/ranges/adaptors/split.cc: Likewise.
3162         * testsuite/std/ranges/adaptors/take.cc: Likewise.
3163         * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
3164         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
3165         * testsuite/std/ranges/empty_view.cc: Likewise.
3166         * testsuite/std/ranges/headers/ranges/synopsis.cc: Likewise.
3167         * testsuite/std/ranges/iota/difference_type.cc: Likewise.
3168         * testsuite/std/ranges/iota/iota_view.cc: Likewise.
3169         * testsuite/std/ranges/iota/iterator.cc: Likewise.
3170         * testsuite/std/ranges/iota/lwg3292_neg.cc: Likewise.
3171         * testsuite/std/ranges/iota/max_size_type.cc: Likewise.
3172         * testsuite/std/ranges/istream_view.cc: Likewise.
3173         * testsuite/std/ranges/p2259.cc: Likewise.
3174         * testsuite/std/ranges/p2325.cc: Likewise.
3175         * testsuite/std/ranges/p2367.cc: Likewise.
3176         * testsuite/std/ranges/range.cc: Likewise.
3177         * testsuite/std/ranges/refinements.cc: Likewise.
3178         * testsuite/std/ranges/safe_range.cc: Likewise.
3179         * testsuite/std/ranges/safe_range_types.cc: Likewise.
3180         * testsuite/std/ranges/single_view.cc: Likewise.
3181         * testsuite/std/ranges/sized.cc: Likewise.
3182         * testsuite/std/ranges/subrange/1.cc: Likewise.
3183         * testsuite/std/ranges/subrange/97512.cc: Likewise.
3184         * testsuite/std/ranges/subrange/constexpr.cc: Likewise.
3185         * testsuite/std/ranges/subrange/lwg3282_neg.cc: Likewise.
3186         * testsuite/std/ranges/subrange/lwg3286.cc: Likewise.
3187         * testsuite/std/ranges/subrange/lwg3433.cc: Likewise.
3188         * testsuite/std/ranges/subrange/sizeof.cc: Likewise.
3189         * testsuite/std/ranges/subrange/tuple_like.cc: Likewise.
3190         * testsuite/std/ranges/view.cc: Likewise.
3191
3192 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
3193
3194         * testsuite/21_strings/headers/cuchar/functions_std_cxx20.cc:
3195         Remove dg-options.
3196         * testsuite/23_containers/span/contiguous_range_neg.cc:
3197         Likewise.
3198         * testsuite/23_containers/span/everything.cc: Likewise.
3199
3200 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
3201
3202         * testsuite/24_iterators/reverse_iterator/100639.cc: Remove
3203         dg-options and add dg-add-options strict_std.
3204         * testsuite/std/ranges/iota/93267.cc: Likewise.
3205         * testsuite/std/ranges/iota/96042.cc: Likewise.
3206         * testsuite/std/ranges/iota/size.cc: Likewise.
3207         * testsuite/std/ranges/subrange/96042.cc: Likewise.
3208
3209 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
3210
3211         * testsuite/tr1/5_numerical_facilities/special_functions/07_conf_hyperg/compile_cxx17.cc:
3212         Replace dg-options -std=c++17 with dg-add-options strict_std.
3213         * testsuite/tr1/5_numerical_facilities/special_functions/17_hyperg/compile_cxx17.cc:
3214         Likewise.
3215
3216 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
3217
3218         * testsuite/23_containers/deque/48101-2_neg.cc: Replace
3219         dg-options with target selector.
3220         * testsuite/23_containers/forward_list/48101-2_neg.cc: Likewise.
3221         * testsuite/23_containers/list/48101-2_neg.cc: Likewise.
3222         * testsuite/23_containers/map/48101-2_neg.cc: Likewise.
3223         * testsuite/23_containers/map/48101_neg.cc: Likewise.
3224         * testsuite/23_containers/multimap/48101-2_neg.cc: Likewise.
3225         * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
3226         * testsuite/23_containers/multiset/48101-2_neg.cc: Likewise.
3227         * testsuite/23_containers/set/48101-2_neg.cc: Likewise.
3228         * testsuite/23_containers/unordered_map/48101-2_neg.cc:
3229         Likewise.
3230         * testsuite/23_containers/unordered_multimap/48101-2_neg.cc:
3231         Likewise.
3232         * testsuite/23_containers/unordered_multiset/48101-2_neg.cc:
3233         Likewise.
3234         * testsuite/23_containers/unordered_set/48101-2_neg.cc:
3235         Likewise.
3236         * testsuite/23_containers/vector/48101-2_neg.cc: Likewise.
3237
3238 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
3239
3240         * doc/xml/manual/test.xml: Update documentation on running and
3241         writing tests.
3242         * doc/html/manual/test.html: Regenerate.
3243         * testsuite/Makefile.am: Add v3-use-std-list to site.tmp
3244         * testsuite/Makefile.in: Regenerate.
3245         * testsuite/lib/dg-options.exp (add_options_for_strict_std): New
3246         proc.
3247         * testsuite/lib/libstdc++.exp (search_for): New utility proc.
3248         (v3-dg-runtest): New proc to replace dg-runtest.
3249         * testsuite/libstdc++-dg/conformance.exp: Use v3-dg-runtest.
3250
3251 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
3252
3253         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc:
3254         Fix test to work for C++23 and C++26 too.
3255
3256 2023-09-15  Patrick Palka  <ppalka@redhat.com>
3257
3258         * include/std/bit: Include <concepts>.
3259         (byteswap): Use a type-constraint instead of enable_if_t
3260         inside the return type, and use std::integral.
3261         (_If_is_unsigned_integer): Replace with ...
3262         (__unsigned_integer): ... this.
3263         (rotl): Use a type-constraint instead of enable_if_t inside
3264         the return type.
3265         (countl_zero): Likewise.
3266         (countl_one): Likewise.
3267         (countr_zero): Likewise.
3268         (countr_one): Likewise.
3269         (popcount): Likewise.
3270         (has_single_bit): Likewise.
3271         (bit_ceil): Likewise.
3272         (bit_floor): Likewise.
3273         (bit_width): Likewise.
3274
3275 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
3276
3277         * include/std/variant (variant): Remove derivation from
3278         _Enable_default_constructor base class.
3279         (variant::variant()): Constrain.
3280         * testsuite/20_util/variant/default_ctor.cc: New test.
3281
3282 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
3283
3284         PR libstdc++/111172
3285         * include/std/variant (get<T>): Remove !is_void static
3286         assertions.
3287
3288 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
3289
3290         * include/bits/version.def (to_chars): Define new value for
3291         C++26.
3292         * include/bits/version.h: Regenerate.
3293         * include/std/charconv (to_chars_result::operator bool): New
3294         function.
3295         (from_chars_result::operator bool): New function.
3296         * testsuite/20_util/to_chars/version.cc: Update expected value.
3297         * testsuite/20_util/from_chars/result.cc: New test.
3298         * testsuite/20_util/to_chars/result.cc: New test.
3299
3300 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
3301
3302         PR c++/111357
3303         * testsuite/20_util/integer_sequence/pr111357.cc: New test.
3304
3305 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
3306
3307         * testsuite/27_io/basic_filebuf/seekoff/char/1-io.cc: Use
3308         dg-additional-files. Remove @require@ and @diff@ comments.
3309         * testsuite/27_io/basic_filebuf/seekoff/char/2-io.cc: Likewise.
3310         * testsuite/27_io/basic_filebuf/seekpos/char/1-io.cc: Likewise.
3311         * testsuite/27_io/basic_filebuf/seekpos/char/2-io.cc: Likewise.
3312         * testsuite/lib/dg-options.exp (v3_additional_files): New
3313         global variable.
3314         (dg-additional-files): New proc.
3315         * testsuite/lib/libstdc++.exp (v3_target_compile): Copy
3316         additional files to test directory.
3317
3318 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
3319
3320         * include/experimental/io_context (io_context) [!_GLIBCXX_HAS_GTHREADS]:
3321         Use a plain integer for _M_work_count for single-threaded
3322         targets.
3323         * include/experimental/memory_resource (__get_default_resource)
3324         [!_GLIBCXX_HAS_GTHREADS]: Use unsynchronized type for
3325         single-threaded targets.
3326         * src/c++17/default_resource.h: Adjust preprocessor conditions
3327         to match memory_resource.cc.
3328         * src/c++17/memory_resource.cc [!_GLIBCXX_HAS_GTHREADS]
3329         (atomic_mem_res): Use unsynchronized type for single-threaded
3330         targets.
3331
3332 2023-09-14  Christophe Lyon  <christophe.lyon@linaro.org>
3333
3334         * testsuite/29_atomics/atomic/compare_exchange_padding.cc: Likewise.
3335         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
3336         * testsuite/29_atomics/atomic_float/value_init.cc: Likewise.
3337         * testsuite/29_atomics/atomic_integral/cons/value_init.cc: Likewise.
3338         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc: Likewise.
3339         * testsuite/29_atomics/atomic_ref/generic.cc: Likewise.
3340         * testsuite/29_atomics/atomic_ref/integral.cc: Likewise.
3341         * testsuite/29_atomics/atomic_ref/pointer.cc: Likewise.
3342
3343 2023-09-14  François Dumont  <fdumont@gcc.gnu.org>
3344
3345         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Add
3346         { dg-require-normal-namespace "" }.
3347
3348 2023-09-13  François Dumont  <fdumont@gcc.gnu.org>
3349
3350         * include/std/format (std::__format::_Arg_store): Explicit version
3351         namespace on make_format_args friend declaration.
3352
3353 2023-09-12  Patrick Palka  <ppalka@redhat.com>
3354
3355         PR libstdc++/111327
3356         * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Also define
3357         a deleted fallback operator() overload.  Constrain both the
3358         enabled and deleted overloads accordingly.
3359         * testsuite/20_util/function_objects/not_fn/111327.cc: New test.
3360
3361 2023-09-12  Patrick Palka  <ppalka@redhat.com>
3362
3363         PR libstdc++/111327
3364         * include/std/functional (_Bind_front::operator()): Add deleted
3365         fallback overloads for each const/ref qualifier pair.  Give the
3366         enabled overloads dummy constraints to make each one more
3367         specialized than the corresponding deleted overload.
3368         * testsuite/20_util/function_objects/bind_front/111327.cc: New test.
3369
3370 2023-09-12  Patrick Palka  <ppalka@redhat.com>
3371
3372         * include/std/functional (_Bind_front0): Remove.
3373         (_Bind_front_t): Adjust.
3374
3375 2023-09-12  Jonathan Wakely  <jwakely@redhat.com>
3376
3377         * python/libstdcxx/v6/printers.py: Reformat.
3378         * python/libstdcxx/v6/xmethods.py: Likewise.
3379
3380 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
3381
3382         * src/c++11/debug.cc (acquire_sequence_ptr_for_lock): New
3383         function.
3384         (reset_sequence_ptr): New function.
3385         (_Safe_iterator_base::_M_detach)
3386         (_Safe_local_iterator_base::_M_detach): Replace bare atomic_load
3387         with acquire_sequence_ptr_for_lock.
3388         (_Safe_iterator_base::_M_reset): Replace bare atomic_store with
3389         reset_sequence_ptr.
3390
3391 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
3392
3393         * src/c++11/Makefile.am: Add new file.
3394         * src/c++11/Makefile.in: Regenerate.
3395         * src/c++11/debug.cc (__glibcxx_assert_fail): Move to ...
3396         * src/c++11/assert_fail.cc: New file.
3397
3398 2023-09-11  Ken Matsui  <kmatsui@gcc.gnu.org>
3399
3400         * include/bits/c++config (_GLIBCXX_HAS_BUILTIN): Do not undef.
3401         (_GLIBCXX_USE_BUILTIN_TRAIT): Define.
3402
3403 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
3404
3405         * include/bits/version.def (__cpp_lib_formatters): Define.
3406         * include/bits/version.h: Regenerate.
3407         * include/std/stacktrace (formatter<stacktrace_entry>)
3408         (formatter<basic_stacktrace<Alloc>>): Define.
3409         * include/std/thread (formatter<thread::id, charT>): Define.
3410         * testsuite/19_diagnostics/stacktrace/output.cc: New test.
3411         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Add
3412         std::formatter specializations.
3413         * testsuite/19_diagnostics/stacktrace/version.cc: Check
3414         __cpp_lib_formatters macro.
3415         * testsuite/30_threads/thread/id/hash.cc: Remove gthreads
3416         dependency.
3417         * testsuite/30_threads/thread/id/operators.cc: Likewise.
3418         * testsuite/30_threads/thread/id/operators_c++20.cc: Likewise.
3419         * testsuite/30_threads/thread/id/output.cc: New test.
3420
3421 2023-09-11  Pekka Seppänen  <pexu@gcc.mail.kapsi.fi>
3422
3423         * src/c++11/cow-locale_init.cc: Add [[maybe_unused]] attribute.
3424         * src/c++17/fs_path.cc (path::_S_convert_loc): Likewise.
3425         * src/filesystem/path.cc (path::_S_convert_loc): Likewise.
3426
3427 2023-09-08  Jonathan Wakely  <jwakely@redhat.com>
3428
3429         * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++23 directory.
3430         * configure: Regenerate.
3431         * doc/html/manual/*: Regenerate.
3432         * doc/xml/manual/using.xml: Update documentation on linking.
3433         * include/std/stacktrace: Remove declarations of libbacktrace
3434         APIs.
3435         (stacktrace_entry::_S_err_handler, stacktrace_entry::_S_init):
3436         Remove.
3437         (stacktrace_entry::_Info): New class.
3438         (stacktrace_entry::_M_get_info): Use _Info.
3439         (__stacktrace_impl): New class.
3440         (basic_stacktrace): Derive from __stacktrace_impl.
3441         (basic_stacktrace::current): Use __stacktrace_impl::_S_current.
3442         * scripts/testsuite_flags.in: Adjust LDFLAGS to find
3443         libstdc++exp instead of libstdc++_libbacktrace.
3444         * src/Makefile.am (SUBDIRS): Add c++23 directory.
3445         * src/Makefile.in: Regenerate.
3446         * src/c++20/Makefile.am: Fix comment.
3447         * src/c++20/Makefile.in: Regenerate.
3448         * src/c++23/Makefile.am: New file.
3449         * src/c++23/Makefile.in: New file.
3450         * src/c++23/stacktrace.cc: New file with definitions of
3451         stacktrace_entry::_Info and __stacktrace_impl members.
3452         * src/experimental/Makefile.am: Use LIBADD to include other
3453         libraries.
3454         * src/experimental/Makefile.in: Regenerate.
3455         * src/libbacktrace/Makefile.am: Use noinst_LTLIBRARIES.
3456         * src/libbacktrace/Makefile.in: Regenerate.
3457         * testsuite/19_diagnostics/stacktrace/current.cc: Adjust
3458         dg-options to use -lstdc++exp.
3459         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
3460         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
3461         * testsuite/23_containers/vector/debug/assign4_backtrace_neg.cc:
3462         Likewise.
3463
3464 2023-09-08  Alexey Lapshin  <alexey.lapshin@espressif.com>
3465
3466         * src/libbacktrace/Makefile.am: Remove -Werror.
3467         * src/libbacktrace/Makefile.in: Regenerate.
3468
3469 2023-09-08  Jonathan Wakely  <jwakely@redhat.com>
3470
3471         * testsuite/Makefile.am (check-DEJAGNU): Use @ in recipe.
3472         * testsuite/Makefile.in: Regenerate.
3473
3474 2023-09-08  Yang Yujie  <yangyujie@loongson.cn>
3475
3476         * configure.host: Register t-loongarch in tmake_file.
3477         * config/cpu/loongarch/t-loongarch: New file.  Manually refresh
3478         MULTISUBDIR with $(shell $(CXX) --print-multi-directory).
3479
3480 2023-09-07  Bruno Victal  <mirai@makinata.eu>
3481
3482         * acinclude.m4: Update docbook xsl URI.
3483         * configure: Regenerate.
3484
3485 2023-09-07  Bruno Victal  <mirai@makinata.eu>
3486
3487         * doc/Makefile.am: Fix 'doc-install-info' rule.
3488         Fix typo in commment.
3489         * doc/Makefile.in: Regenerate.
3490
3491 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3492
3493         * testsuite/27_io/filesystem/path/concat/94063.cc: Simplify
3494         dg-do target selector.
3495
3496 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3497
3498         * testsuite/config/default.exp: Remove trailing whitespace.
3499         * testsuite/lib/dg-options.exp: Likewise.
3500         * testsuite/lib/prune.exp: Likewise.
3501         * testsuite/libstdc++-abi/abi.exp: Likewise.
3502         * testsuite/libstdc++-dg/conformance.exp: Likewise.
3503         * testsuite/libstdc++-prettyprinters/prettyprinters.exp:
3504         Likewise.
3505         * testsuite/libstdc++-xmethods/xmethods.exp: Likewise.
3506         * testsuite/lib/libstdc++.exp: Likewise.
3507         (check_v3_target_c_std): Fix filename for temporary source file.
3508
3509 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3510
3511         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for mkdir,
3512         chmod, chdir, and getcwd.
3513         * config.h.in: Regenerate.
3514         * configure: Regenerate.
3515         * src/c++17/fs_ops.cc (create_dir): Use USE_MKDIR macro.
3516         (fs::current_path): Use USE_GETCWD and USE_CHDIR macros.
3517         (fs::permissions): Use USE_CHMOD macro.
3518         * src/filesystem/ops-common.h [FILESYSTEM_IS_WINDOWS]
3519         (chmod, mkdir, getcwd, chdir): Define new macros.
3520         [FILESYSTEM_IS_WINDOWS] (chmod, mkdir, getcwd, chdir): Use
3521         new macros.
3522         * src/filesystem/ops.cc (create_dir): Use USE_MKDIR macro.
3523         (fs::current_path): Use USE_GETCWD and USE_CHDIR macros.
3524         (fs::permissions): Use USE_CHMOD macro.
3525
3526 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3527
3528         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Disable by default
3529         for avr.
3530         * configure: Regenerate.
3531
3532 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3533
3534         * testsuite/23_containers/unordered_map/operations/1.cc: Add
3535         dg-options for C++20 mode.
3536         * testsuite/23_containers/unordered_multimap/operations/1.cc:
3537         Likewise.
3538         * testsuite/23_containers/unordered_multiset/operations/1.cc:
3539         Likewise.
3540         * testsuite/23_containers/unordered_set/operations/1.cc:
3541         Likewise.
3542         * testsuite/std/time/parse.cc: Move dg-options before dg-do.
3543
3544 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3545
3546         * testsuite/std/ranges/access/cbegin.cc: Adjust for C++23
3547         compatibility.
3548         * testsuite/std/ranges/access/cdata.cc: Likewise.
3549         * testsuite/std/ranges/access/cend.cc: Likewise.
3550         * testsuite/std/ranges/access/crbegin.cc: Likewise.
3551         * testsuite/std/ranges/access/crend.cc: Likewise.
3552         * testsuite/std/ranges/adaptors/take.cc: Likewise.
3553         * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
3554         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
3555
3556 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3557
3558         * include/bits/iterator_concepts.h (__imove::iter_move): Define
3559         poison pill as deleted for consistency.
3560         (__access::begin): Replace with a single declaration.
3561         * include/bits/ranges_base.h (__access::end, __access::rbegin)
3562         (__access::rend, __access::size): Likewise.
3563         * include/bits/version.def (ranges): Update value for C++23.
3564         * include/bits/version.h: Regenerate.
3565         * libsupc++/compare (__compare): Add missing poison pill
3566         overloads.
3567         * testsuite/std/ranges/version_c++23.cc: Adjust expected value
3568         of __cpp_lib_ranges.
3569         * testsuite/std/ranges/access/p2602.cc: New test.
3570
3571 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3572
3573         * include/bits/iterator_concepts.h (ranges::__cust_imove):
3574         Rename to ranges::__imove.
3575         (_IMove): Rename to _IterMove.
3576         (ranges::__cust_iswap): Rename to ranges::__iswap.
3577         (ranges::__cust): Rename to ranges::_Cpo.
3578         (ranges::__cust_access): Rename to ranges::__access.
3579         * include/bits/ranges_base.h (ranges::__cust_access): Rename to
3580         ranges::__access.
3581         (ranges::__cust): Rename to ranges::_Cpo.
3582         * include/std/concepts (ranges::__cust_swap):  Rename to
3583         ranges::__swap.
3584         (ranges::__cust): Rename to ranges::_Cpo.
3585         * libsupc++/compare (__cmp_cust): Rename to __compare.
3586         (__cmp_algo): Rename to _Cpo.
3587
3588 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3589
3590         * include/bits/version.def (ranges): Update value.
3591         * include/bits/version.h: Regenerate.
3592         * include/std/ranges (__detail::__boxable): Use
3593         move_constructible instead of copy_constructible for C++23.
3594         (__detail::__box<T>): Adjust constraints for partial
3595         specialization.
3596         (single_view, transform_view): Use __box_constructible instead
3597         of copy_constructible in constraints.
3598         (zip_transform_view, adjacent_transform_view, repeat_view): Use
3599         move_constructible instead of copy_constructible in constraints.
3600         * testsuite/std/ranges/adaptors/adjacent_transform/1.cc: Check
3601         construction from move-only argument.
3602         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
3603         * testsuite/std/ranges/repeat/1.cc: Likewise.
3604         * testsuite/std/ranges/single_view.cc: Likewise.
3605         * testsuite/std/ranges/zip_transform/1.cc: Likewise.
3606         * testsuite/std/ranges/version_c++23.cc: Adjust expected value
3607         of __cpp_lib_ranges.
3608
3609 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3610
3611         * testsuite/util/testsuite_iterators.h (is_customization_point_object):
3612         Remove parameter name.
3613
3614 2023-09-06  Jonathan Wakely  <jwakely@redhat.com>
3615
3616         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Disable by default
3617         for freestanding.
3618         * configure: Regenerate.
3619
3620 2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
3621
3622         Revert
3623         2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
3624
3625         PR libstdc++/111238
3626         * configure: Regenerate.
3627         * configure.ac: Call GLIBCXX_CHECK_LINKER_FEATURES in cross,
3628         non-Canadian builds.
3629
3630 2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
3631
3632         PR libstdc++/111238
3633         * configure: Regenerate.
3634         * configure.ac: Call GLIBCXX_CHECK_LINKER_FEATURES in cross,
3635         non-Canadian builds.
3636
3637 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3638
3639         * testsuite/26_numerics/complex/literals/types.cc: Remove
3640         dg-options and add target selector instead.
3641
3642 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3643
3644         * testsuite/tr1/6_containers/utility/pair.cc: Remove dg-options
3645         and qualify ambiguous calls to get.
3646         * testsuite/tr1/8_c_compatibility/cmath/pow_cmath.cc: Adjust
3647         expected result for std::pow(float, int) as per DR 550.
3648
3649 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3650
3651         * testsuite/20_util/auto_ptr/1.cc: Remove dg-options -std=c++03
3652         and add dg-warning for deprecation warnings.
3653         * testsuite/20_util/auto_ptr/2.cc: Likewise.
3654         * testsuite/20_util/auto_ptr/3.cc: Likewise.
3655         * testsuite/20_util/auto_ptr/3946.cc: Likewise.
3656         * testsuite/20_util/auto_ptr/4.cc: Likewise.
3657         * testsuite/20_util/auto_ptr/5.cc: Likewise.
3658         * testsuite/20_util/auto_ptr/6.cc: Likewise.
3659         * testsuite/20_util/auto_ptr/7.cc: Likewise.
3660         * testsuite/20_util/auto_ptr/assign_neg.cc: Likewise.
3661         * testsuite/20_util/auto_ptr/requirements/explicit_instantiation/1.cc:
3662         Likewise.
3663         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr.cc:
3664         Likewise.
3665         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr_neg.cc:
3666         Likewise.
3667         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr_rvalue_neg.cc:
3668         Likewise.
3669         * testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc:
3670         Likewise.
3671         * testsuite/tr1/2_general_utilities/shared_ptr/cons/auto_ptr.cc:
3672         Likewise.
3673         * testsuite/tr1/2_general_utilities/shared_ptr/cons/auto_ptr_neg.cc:
3674         Likewise.
3675
3676 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3677
3678         PR libstdc++/26142
3679         * testsuite/23_containers/vector/26412-1.cc: Moved to...
3680         * testsuite/23_containers/vector/26142-1.cc: ...here.
3681         * testsuite/23_containers/vector/26412-2.cc: Moved to...
3682         * testsuite/23_containers/vector/26142-2.cc: ...here.
3683
3684 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3685
3686         * testsuite/20_util/bitset/107037.cc: Add c++98_only selector.
3687         * testsuite/26_numerics/complex/56111.cc: Likewise.
3688
3689 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3690
3691         * testsuite/23_containers/deque/requirements/explicit_instantiation/2.cc:
3692         Add dg-options to restrict the test to C++98 mode.
3693         * testsuite/23_containers/list/requirements/explicit_instantiation/2.cc:
3694         Likewise.
3695
3696 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3697
3698         * testsuite/20_util/expected/bad.cc: Add missing target
3699         selector.
3700
3701 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3702
3703         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Adjust
3704         expected errors.
3705         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
3706         Likewise.
3707
3708 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3709
3710         * testsuite/27_io/filesystem/iterators/91067.cc: Add
3711         -Wno-self-move to options.
3712         * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
3713
3714 2023-09-01  Vladimir Palevich  <palevichva@gmail.com>
3715
3716         PR libstdc++/110879
3717         * include/bits/vector.tcc (_M_realloc_insert): End guard
3718         lifetime just before assignment to class members.
3719         (_M_default_append): Likewise.
3720
3721 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3722
3723         * src/c++17/fs_ops.cc (fs::absolute) [FILESYSTEM_IS_WINDOWS]:
3724         Use __resize_and_overwrite to fill buffer.
3725         (fs::read_symlink) [HAVE_READLINK]: Likewise.
3726         * src/filesystem/ops-common.h (get_temp_directory_from_env)
3727         [FILESYSTEM_IS_WINDOWS]: Likewise.
3728
3729 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3730
3731         PR libstdc++/111077
3732         * include/bits/atomic_base.h (__atomic_impl::__compare_exchange):
3733         Add _AtomicRef non-type template parameter and use a loop if it
3734         is true.
3735         (__atomic_impl::compare_exchange_weak): Add _AtomicRef NTTP.
3736         (__atomic_impl::compare_exchange_strong): Likewise.
3737         (atomic_ref::compare_exchange_weak): Use true for NTTP.
3738         (atomic_ref::compare_exchange_strong): Use true for NTTP.
3739         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc:
3740         Fix test to not rely on atomic_ref::load() to return an object
3741         with padding preserved.
3742
3743 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3744
3745         * testsuite/27_io/filesystem/path/108636.cc: Add dg-require for
3746         filesystem support.
3747
3748 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3749
3750         * src/c++20/tzdb.cc (tzdb::current_zone): Check configure macros
3751         for POSIX readlink before using filesystem::read_symlink.
3752
3753 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3754
3755         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Default to yes.
3756         * configure: Regenerate.
3757
3758 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3759
3760         * include/bits/chrono_io.h (_Parser::operator()): Set failbit
3761         early if invalid values are read when _M_need & _TimeOfDay is
3762         non-zero.
3763         * testsuite/std/time/parse.cc: Check that "25:59" cannot be
3764         parsed for "%H:%M".
3765
3766 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3767
3768         PR libstdc++/111162
3769         * include/bits/chrono_io.h (_Parser::Operator()): Check %C
3770         values are in range of year::min() to year::max().
3771         * testsuite/std/time/parse.cc: Check out of range centuries.
3772
3773 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3774
3775         * include/std/format (__format::_Sink::_M_reset): Change second
3776         argument from iterator to offset.
3777
3778 2023-08-24  Paul Dreik  <gccpatches@pauldreik.se>
3779
3780         PR libstdc++/111102
3781         * testsuite/std/format/string.cc: Check wide character format
3782         strings with out-of-range widths.
3783
3784 2023-08-24  Paul Dreik  <gccpatches@pauldreik.se>
3785
3786         PR libstdc++/111102
3787         * include/std/format (__format::__parse_integer): Check for
3788         non-null pointer.
3789
3790 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
3791
3792         * testsuite/std/format/functions/format_to.cc: Avoid warning for
3793         unused variables.
3794
3795 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
3796
3797         * include/std/atomic: Add comment to #ifdef and fix indentation.
3798         * include/std/ostream: Check __glibcxx_syncbuf instead of
3799         __cplusplus and _GLIBCXX_HOSTED.
3800         * include/std/thread: Add comment to #ifdef.
3801
3802 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
3803
3804         * include/bits/version.def (__cpp_lib_ratio): Define.
3805         * include/bits/version.h: Regenerate.
3806         * include/std/ratio (quecto, ronto, yocto, zepto)
3807         (zetta, yotta, ronna, quetta): Define.
3808         * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Adjust
3809         dg-error line numbers.
3810
3811 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
3812
3813         * python/libstdcxx/v6/printers.py (StdLocalePrinter): New
3814         printer class.
3815         * testsuite/libstdc++-prettyprinters/locale.cc: New test.
3816
3817 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
3818
3819         PR libstdc++/110944
3820         * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Do
3821         not show template arguments.
3822         (StdVariantPrinter): Likewise.
3823         * testsuite/libstdc++-prettyprinters/compat.cc: Adjust expected
3824         output.
3825         * testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
3826         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
3827
3828 2023-08-23  François Dumont  <fdumont@gcc.gnu.org>
3829
3830         * testsuite/util/replacement_memory_operators.h
3831         (counter::scope): New, capture and reset counter count at construction and
3832         restore it at destruction.
3833         (counter::check_new): Add scope instantiation.
3834         * testsuite/23_containers/unordered_map/96088.cc (main):
3835         Add counter::scope instantiation.
3836         * testsuite/23_containers/unordered_multimap/96088.cc (main): Likewise.
3837         * testsuite/23_containers/unordered_multiset/96088.cc (main): Likewise.
3838         * testsuite/23_containers/unordered_set/96088.cc (main): Likewise.
3839         * testsuite/ext/malloc_allocator/deallocate_local.cc (main): Likewise.
3840         * testsuite/ext/new_allocator/deallocate_local.cc (main): Likewise.
3841         * testsuite/ext/throw_allocator/deallocate_local.cc (main): Likewise.
3842         * testsuite/ext/pool_allocator/allocate_chunk.cc (started): New global.
3843         (operator new(size_t)): Check started.
3844         (main): Set/Unset started.
3845         * testsuite/17_intro/no_library_allocation.cc: New test case.
3846
3847 2023-08-21  Jonathan Wakely  <jwakely@redhat.com>
3848
3849         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
3850         Call std::set_terminate before throwing the nested exception.
3851
3852 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
3853
3854         PR target/111060
3855         * include/std/format (formatter): Only define specializations
3856         for 16-bit floating-point types for C++23.
3857         * include/std/limits (numeric_limits): Likewise.
3858
3859 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
3860
3861         * include/bits/chrono_io.h (operator<<): Make uses of wide
3862         strings with streams and std::format type-dependent on _CharT.
3863         * include/std/format [!_GLIBCXX_USE_WCHAR_T] Do not use
3864         __to_wstring_numeric.
3865
3866 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
3867
3868         * include/bits/chrono_io.h (operator<<): Use __format_context.
3869         * include/std/format (__format::__format_context): New alias
3870         template.
3871         [!_GLIBCXX_USE_WCHAR_T] (wformat_args, make_wformat_arg):
3872         Disable.
3873
3874 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3875
3876         Revert:
3877         2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3878
3879         * config/locale/generic/c_locale.cc (__convert_to_v): Reuse
3880         double overload for long double if possible.
3881
3882 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3883
3884         * src/c++20/tzdb.cc (tzdata_file, leaps_file): Change type to
3885         std::string_view.
3886
3887 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3888
3889         * config/locale/generic/c_locale.cc (__convert_to_v): Reuse
3890         double overload for long double if possible.
3891
3892 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3893
3894         * src/c++98/localename.cc (is_C_locale): New function.
3895         (locale::locale(const char*)): Use is_C_locale.
3896
3897 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3898
3899         PR libstdc++/110945
3900         * include/bits/basic_string.h (basic_string::assign(Iter, Iter)):
3901         Dispatch to _M_replace or move assignment from a temporary,
3902         based on the iterator type.
3903
3904 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3905
3906         * include/std/format (formatter): Add partial specializations
3907         for extended floating-point types.
3908         * testsuite/std/format/functions/format.cc: Move test_float128()
3909         to ...
3910         * testsuite/std/format/formatter/ext_float.cc: New test.
3911
3912 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3913
3914         * include/bits/c++config (__gnu_cxx::__bfloat16_t): Define
3915         whenever __BFLT16_DIG__ is defined, not only for C++23.
3916         * include/std/limits (numeric_limits<bfloat16_t>): Likewise.
3917         (numeric_limits<_Float16>, numeric_limits<_Float32>)
3918         (numeric_limits<_Float64>): Likewise for other extended
3919         floating-point types.
3920
3921 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3922
3923         * include/experimental/internet (address_v4::to_string): Remove
3924         unused parameter name.
3925
3926 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3927
3928         * libsupc++/compare (__cmp_cat::__unseq): Make ctor consteval.
3929         * testsuite/18_support/comparisons/categories/zero_neg.cc: Prune
3930         excess errors caused by invalid consteval calls.
3931
3932 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3933
3934         * include/bits/chrono_io.h (__units_suffix_misc): Remove.
3935         (__units_suffix): Return a known suffix as string view, do not
3936         write unknown suffixes to a buffer.
3937         (__fmt_units_suffix): New function that formats the suffix using
3938         std::format_to.
3939         (operator<<, __chrono_formatter::_M_q): Use __fmt_units_suffix.
3940         (__chrono_formatter::_M_Z): Correct lifetime of wstring.
3941
3942 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3943
3944         * include/std/format [_GLIBCXX_USE_WCHAR_T]: Guard all wide
3945         string formatters with this macro.
3946         (__formatter_int::_M_format_int, __formatter_fp::format)
3947         (formatter<const void*, C>::format): Use __to_wstring_numeric
3948         instead of std::ctype::widen.
3949         (__formatter_fp::_M_localize): Use hardcoded wchar_t values
3950         instead of std::ctype::widen.
3951         * testsuite/std/format/functions/format.cc: Add more checks for
3952         wstring formatting of arithmetic types.
3953
3954 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3955
3956         * include/bits/basic_string.h (to_string(floating-point-type)):
3957         Implement using std::to_chars for C++26.
3958         * include/bits/version.def (__cpp_lib_to_string): Define.
3959         * include/bits/version.h: Regenerate.
3960         * testsuite/21_strings/basic_string/numeric_conversions/char/dr1261.cc:
3961         Adjust expected result in C++26 mode.
3962         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string.cc:
3963         Likewise.
3964         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/dr1261.cc:
3965         Likewise.
3966         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/to_wstring.cc:
3967         Likewise.
3968         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_float.cc:
3969         New test.
3970         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/to_wstring_float.cc:
3971         New test.
3972         * testsuite/21_strings/basic_string/numeric_conversions/version.cc:
3973         New test.
3974
3975 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3976
3977         * include/bits/basic_string.h (to_string(integral-type)): Use
3978         resize_and_overwrite when available.
3979         (__to_wstring_numeric): New helper functions.
3980         (to_wstring): Use std::to_string then __to_wstring_numeric.
3981         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_int.cc:
3982         Remove check for no excess capacity.
3983
3984 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3985
3986         * include/bits/basic_string.h (__resize_and_overwrite): New
3987         function.
3988         * include/bits/basic_string.tcc (__resize_and_overwrite): New
3989         function.
3990         (resize_and_overwrite): Simplify by using reserve instead of
3991         growing the string manually. Adjust for C++11 compatibility.
3992         * include/bits/cow_string.h (resize_and_overwrite): New
3993         function.
3994         (__resize_and_overwrite): New function.
3995         * include/bits/version.def (__cpp_lib_string_resize_and_overwrite):
3996         Do not depend on cxx11abi.
3997         * include/bits/version.h: Regenerate.
3998         * include/std/format (__formatter_fp::_S_resize_and_overwrite):
3999         Remove.
4000         (__formatter_fp::format, __formatter_fp::_M_localize): Use
4001         __resize_and_overwrite instead of _S_resize_and_overwrite.
4002         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
4003         Adjust for C++11 compatibility when included by ...
4004         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite_ext.cc:
4005         New test.
4006
4007 2023-08-17  Patrick Palka  <ppalka@redhat.com>
4008
4009         * include/bits/regex.h (regex_iterator::iterator_concept):
4010         Define for C++20 as per P2770R0.
4011         (regex_token_iterator::iterator_concept): Likewise.
4012         * include/std/ranges (__detail::__as_lvalue): Define.
4013         (join_view::_Iterator): Befriend join_view.
4014         (join_view::_Iterator::_M_satisfy): Use _M_get_outer
4015         instead of _M_outer.
4016         (join_view::_Iterator::_M_get_outer): Define.
4017         (join_view::_Iterator::_Iterator): Split constructor taking
4018         _Parent argument into two as per P2770R0.  Remove constraint on
4019         default constructor.
4020         (join_view::_Iterator::_M_outer): Make this data member present
4021         only when the underlying range is forward.
4022         (join_view::_Iterator::operator++): Use _M_get_outer instead of
4023         _M_outer.
4024         (join_view::_Iterator::operator--): Use __as_lvalue helper.
4025         (join_view::_Iterator::operator==): Adjust constraints as per
4026         P2770R0.
4027         (join_view::_Sentinel::__equal): Use _M_get_outer instead of
4028         _M_outer.
4029         (join_view::_M_outer): New data member when the underlying range
4030         is non-forward.
4031         (join_view::begin): Adjust definition as per P2770R0.
4032         (join_view::end): Likewise.
4033         (join_with_view::_M_outer_it): New data member when the
4034         underlying range is non-forward.
4035         (join_with_view::begin): Adjust definition as per P2770R0.
4036         (join_with_view::end): Likewise.
4037         (join_with_view::_Iterator::_M_outer_it): Make this data member
4038         present only when the underlying range is forward.
4039         (join_with_view::_Iterator::_M_get_outer): Define.
4040         (join_with_view::_Iterator::_Iterator): Split constructor
4041         taking _Parent argument into two as per P2770R0.  Remove
4042         constraint on default constructor.
4043         (join_with_view::_Iterator::_M_update_inner): Adjust definition
4044         as per P2770R0.
4045         (join_with_view::_Iterator::_M_get_inner): Likewise.
4046         (join_with_view::_Iterator::_M_satisfy): Adjust calls to
4047         _M_get_inner.  Use _M_get_outer instead of _M_outer_it.
4048         (join_with_view::_Iterator::operator==): Adjust constraints
4049         as per P2770R0.
4050         (join_with_view::_Sentinel::operator==): Use _M_get_outer
4051         instead of _M_outer_it.
4052         * testsuite/std/ranges/adaptors/p2770r0.cc: New test.
4053
4054 2023-08-17  Patrick Palka  <ppalka@redhat.com>
4055
4056         PR libstdc++/108827
4057         * include/std/ranges (__adaptor::_RangeAdaptorClosure):
4058         Convert into a CRTP class template.  Move hidden operator|
4059         friends into namespace scope and adjust their constraints.
4060         (__closure::__is_range_adaptor_closure_fn): Define.
4061         (__closure::__is_range_adaptor_closure): Define.
4062         (__adaptor::_Partial): Adjust use of _RangeAdaptorClosure.
4063         (__adaptor::_Pipe): Likewise.
4064         (views::_All): Likewise.
4065         (views::_Join): Likewise.
4066         (views::_Common): Likewise.
4067         (views::_Reverse): Likewise.
4068         (views::_Elements): Likewise.
4069         (views::_Adjacent): Likewise.
4070         (views::_AsRvalue): Likewise.
4071         (views::_Enumerate): Likewise.
4072         (views::_AsConst): Likewise.
4073         * testsuite/std/ranges/adaptors/all.cc: Reinstate assertion
4074         expecting that adding empty range adaptor closure objects to a
4075         pipeline doesn't increase the size of a pipeline.
4076
4077 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
4078
4079         * include/std/format (__format::_Pres_type): Add _Pres_F.
4080         (__formatter_fp::parse): Use _Pres_F for 'F'.
4081         (__formatter_fp::format): Set __upper for _Pres_F.
4082         * testsuite/std/format/functions/format.cc: Check formatting of
4083         infinity and NaN for each presentation type.
4084
4085 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
4086
4087         * include/Makefile.in: Regenerate.
4088
4089 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
4090
4091         * testsuite/24_iterators/move_iterator/p2520r0.cc: Add no_pch.
4092         * testsuite/std/format/functions/format.cc: Likewise.
4093         * testsuite/std/format/functions/format_c++23.cc: Likewise.
4094
4095 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
4096
4097         * testsuite/lib/dg-options.exp (add_options_for_no_pch): Remove
4098         any "-include bits/stdc++.h" from options and add the macro to
4099         the existing options instead of replacing them.
4100
4101 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
4102
4103         * include/bits/basic_string.tcc (resize_and_overwrite): Invoke
4104         the callable with the same size as resize_and_overwrite was
4105         called with.
4106         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
4107         Check with small values for the new size.
4108         * testsuite/std/format/functions/format.cc: Check wide
4109         formatting of double values that produce small strings.
4110         * testsuite/std/format/functions/format_c++23.cc: New test.
4111
4112 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
4113
4114         * include/bits/version.def (stds): Update value for C++23.
4115         * include/bits/version.h: Regenerate.
4116
4117 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
4118
4119         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
4120         Fix name of upstream file this was derived from.
4121         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
4122         Likewise.
4123         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
4124         Likewise.
4125         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
4126         Likewise.
4127         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h: Likewise.
4128
4129 2023-08-16  Arsen Arsenović  <arsen@aarsen.me>
4130
4131         * libsupc++/typeinfo: Switch to bits/version.h for
4132         __cpp_lib_constexpr_typeinfo.
4133         * libsupc++/new: Switch to bits/version.h for
4134         __cpp_lib_{launder,hardware_interference_size,destroying_delete}.
4135         (launder): Guard behind __cpp_lib_launder.
4136         (hardware_destructive_interference_size)
4137         (hardware_constructive_interference_size): Guard behind
4138         __cpp_lib_hardware_interference_size.
4139         * libsupc++/exception: Switch to bits/version.h for
4140         __cpp_lib_uncaught_exceptions.
4141         (uncaught_exceptions): Guard behind __cpp_lib_uncaught_exceptions.
4142         * libsupc++/compare: Switch to bits/version.h for
4143         __cpp_lib_three_way_comparison.
4144         (three_way_comparable, three_way_comparable_with)
4145         (compare_three_way, weak_order, strong_order, partial_order):
4146         Guard behind __cpp_lib_three_way_comparison >= 201907L.
4147         * include/std/chrono: Drop __cpp_lib_chrono definition.
4148         * include/std/vector: Switch to bits/version.h for
4149         __cpp_lib_erase_if.
4150         (erase, erase_if): Guard behind __cpp_lib_erase_if.
4151         * include/std/variant: Switch to bits/version.h for
4152         __cpp_lib_variant.  Guard whole header behind that FTM.
4153         * include/std/utility: Switch to bits/version.h for
4154         __cpp_lib_{exchange_function,constexpr_algorithms,as_const},
4155         __cpp_lib_{integer_comparison_functions,to_underlying}, and
4156         __cpp_lib_unreachable.
4157         (exchange): Guard behind __cpp_lib_exchange_function.
4158         (cmp_equal, cmp_not_equal, cmp_less, cmp_greater, cmp_less_equal)
4159         (cmp_greater_equal, in_range): Guard behind
4160         __cpp_lib_integer_comparison_functions.
4161         (to_underlying): Guard behind __cpp_lib_to_underlying.
4162         (unreachable): Guard behind __cpp_lib_unreachable.
4163         * include/std/type_traits: Switch to bits/version.h for
4164         __cpp_lib_is_{null_pointer,final,nothrow_convertible,aggregate},
4165         __cpp_lib_is_{constant_evaluated,invocable,layout_compatible},
4166         __cpp_lib_is_{pointer_interconvertible,scoped_enum,swappable},
4167         __cpp_lib_{logical_traits,reference_from_temporary,remove_cvref},
4168         __cpp_lib_{result_of_sfinae,transformation_trait_aliases},
4169         __cpp_lib_{type_identity,type_trait_variable_templates},
4170         __cpp_lib_{unwrap_ref,void_t,integral_constant_callable},
4171         __cpp_lib_{bool_constant,bounded_array_traits}, and
4172         __cpp_lib_has_unique_object_representations.
4173         (integral_constant::operator()): Guard behind
4174         __cpp_lib_integral_constant_callable.
4175         (bool_constant): Guard behind __cpp_lib_bool_constant.
4176         (conjunction, disjunction, negation, conjunction_v, disjunction_v)
4177         (negation_v): Guard behind __cpp_lib_logical_traits.
4178         (is_null_pointer): Guard behind __cpp_lib_is_null_pointer.
4179         (is_final): Guard behind __cpp_lib_is_final.
4180         (is_nothrow_convertible, is_nothrow_convertible_v): Guard behind
4181         __cpp_lib_is_nothrow_convertible.
4182         (remove_const_t, remove_volatile_t, remove_cv_t)
4183         (add_const_t, add_volatile_t, add_cv_t): Guard behind
4184         __cpp_lib_transformation_trait_aliases.
4185         (void_t): Guard behind __cpp_lib_void_t.
4186         (is_swappable_with_v, is_nothrow_swappable_with_v)
4187         (is_swappable_with, is_nothrow_swappable_with): Guard behind
4188         __cpp_lib_is_swappable.
4189         (is_nothrow_invocable_r, is_invocable_r, invoke_result)
4190         (is_invocable, invoke_result_t): Guard behind
4191         __cpp_lib_is_invocable.
4192         (alignment_of_v, extent_v, has_virtual_destructor_v)
4193         (is_abstract_v, is_arithmetic_v, is_array_v)
4194         (is_assignable_v, is_base_of_v, is_class_v, is_compound_v)
4195         (is_constructible_v, is_const_v, is_convertible_v)
4196         (is_copy_assignable_v, is_copy_constructible_v)
4197         (is_default_constructible_v, is_destructible_v)
4198         (is_empty_v, is_enum_v, is_final_v, is_floating_point_v)
4199         (is_function_v, is_fundamental_v, is_integral_v)
4200         (is_invocable_r_v, is_invocable_v, is_literal_type_v)
4201         (is_lvalue_reference_v, is_member_function_pointer_v)
4202         (is_member_object_pointer_v, is_member_pointer_v)
4203         (is_move_assignable_v, is_move_constructible_v)
4204         (is_nothrow_assignable_v, is_nothrow_constructible_v)
4205         (is_nothrow_copy_assignable_v, is_nothrow_copy_constructible_v)
4206         (is_nothrow_default_constructible_v, is_nothrow_destructible_v)
4207         (is_nothrow_invocable_r_v, is_nothrow_invocable_v)
4208         (is_nothrow_move_assignable_v, is_nothrow_move_constructible_v)
4209         (is_null_pointer_v, is_object_v, is_pod_v, is_pointer_v)
4210         (is_polymorphic_v, is_reference_v, is_rvalue_reference_v)
4211         (is_same_v, is_scalar_v, is_signed_v, is_standard_layout_v)
4212         (is_trivially_assignable_v, is_trivially_constructible_v)
4213         (is_trivially_copyable_v, is_trivially_copy_assignable_v)
4214         (is_trivially_copy_constructible_v)
4215         (is_trivially_default_constructible_v)
4216         (is_trivially_destructible_v, is_trivially_move_assignable_v)
4217         (is_trivially_move_constructible_v, is_trivial_v, is_union_v)
4218         (is_unsigned_v, is_void_v, is_volatile_v, rank_v, as variadic):
4219         Guard behind __cpp_lib_type_trait_variable_templates.
4220         (has_unique_object_representations)
4221         (has_unique_object_representations_v): Guard behind
4222         __cpp_lib_has_unique_object_representation.
4223         (is_aggregate): Guard behind __cpp_lib_is_aggregate.
4224         (remove_cvref, remove_cvref_t): Guard behind
4225         __cpp_lib_remove_cvref.
4226         (type_identity, type_identity_t): Guard behind
4227         __cpp_lib_type_identity.
4228         (unwrap_reference, unwrap_reference_t, unwrap_ref_decay)
4229         (unwrap_ref_decay_t): Guard behind __cpp_lib_unwrap_ref.
4230         (is_bounded_array_v, is_unbounded_array_v, is_bounded_array)
4231         (is_unbounded_array): Guard behind __cpp_lib_bounded_array_traits.
4232         (is_scoped_enum, is_scoped_enum_v): Guard behind
4233         __cpp_lib_is_scoped_enum.
4234         (reference_constructs_from_temporary)
4235         (reference_constructs_from_temporary_v): Guard behind
4236         __cpp_lib_reference_from_temporary.
4237         * include/std/tuple: Switch to bits/version.h for
4238         __cpp_lib_{constexpr_tuple,tuple_by_type,apply_make_from_tuple}.
4239         (get<T>): Guard behind __cpp_lib_tuple_by_type.
4240         (apply): Guard behind __cpp_lib_apply.
4241         (make_from_tuple): Guard behind __cpp_lib_make_from_tuple.
4242         * include/std/syncstream: Switch to bits/version.h for
4243         __cpp_lib_syncbuf.  Guard header behind that FTM.
4244         * include/std/string_view: Switch to bits/version.h for
4245         __cpp_lib_{string_{view,contains},constexpr_string_view} and
4246         __cpp_lib_starts_ends_with.
4247         (basic_string_view::starts_with, basic_string_view::ends_with):
4248         Guard behind __cpp_lib_starts_ends_with.
4249         [C++23 && _GLIBCXX_HOSTED && !defined(__cpp_lib_string_contains)]:
4250         Assert as impossible ithout a bug in C++23.
4251         * include/std/string: Switch to bits/version.h for
4252         __cpp_lib_erase_if.
4253         (erase, erase_if): Guard behind __cpp_lib_erase_if.
4254         * include/std/thread: Switch to bits/version.h for
4255         __cpp_lib_jthread.
4256         * include/std/stop_token: Switch to bits/version.h for
4257         __cpp_lib_jthread.
4258         * include/std/spanstream: Switch to bits/version.h for
4259         __cpp_lib_spanstream.  Guard header behind that FTM.
4260         * include/std/span: Switch to bits/version.h for __cpp_lib_span.
4261         Guard header behind that FTM.
4262         * include/std/source_location: Switch to bits/version.h for
4263         __cpp_lib_source_location.  Guard header with that FTM.
4264         * include/std/shared_mutex: Switch to bits/version.h for
4265         __cpp_lib_shared{,_timed}_mutex.
4266         (shared_mutex): Guard behind __cpp_lib_shared_mutex.
4267         * include/std/semaphore: Switch to bits/version.h for
4268         __cpp_lib_semaphore.  Guard header behind that FTM.
4269         * include/std/ranges: Switch to bits/version.h for
4270         __cpp_lib_ranges_{zip,chunk{,_by},slide,join_with},
4271         __cpp_lib_ranges_{repeat_stride,cartesian_product,as_rvalue},
4272         and __cpp_lib_ranges_{as_const,enumerate,iota}.
4273         (ranges::zip et al, ranges::chunk et al, ranges::slide et al)
4274         (ranges::chunk_by et al, ranges::join_with et al)
4275         (ranges::stride et al, ranges::cartesian_product et al)
4276         (ranges::as_rvalue et al, ranges::as_const et al)
4277         (ranges::enumerate et al): Guard behind appropriate FTM.
4278         * include/std/optional: Switch to bits/version.h for
4279         __cpp_lib_optional.  Guard header behind that FTM.
4280         * include/std/numeric: Switch to bits/version.h for
4281         __cpp_lib_{gcd{,_lcm},lcm,constexpr_numeric,interpolate}
4282         and __cpp_lib_parallel_algorithm.
4283         (gcd, lcm): Guard behind __cpp_lib_gcd_lcm.
4284         (midpoint): Guard behind __cpp_lib_interpolate.
4285         * include/std/numbers: Switch to bits/version.h for
4286         __cpp_lib_math_constants.  Guard header behind that FTM.
4287         * include/std/mutex: Switch to bits/version.h for
4288         __cpp_lib_scoped_lock.
4289         (scoped_Lock): Guard behind __cpp_lib_scoped_lock.
4290         * include/std/memory_resource: Switch to bits/version.h for
4291         __cpp_lib_{polymorphic_allocator,memory_resource}.
4292         (synchronized_pool_resource): Guard behind
4293         __cpp_lib_memory_resource >= 201603L.
4294         (polymorphic_allocator): Guard behind
4295         __cpp_lib_polymorphic_allocator.
4296         * include/std/memory: Switch to bits/version.h for
4297         __cpp_lib_{parallel_algorithm,atomic_value_initialization}.
4298         * include/std/list: Switch to bits/version.h for
4299         __cpp_lib_erase_if.
4300         (erase, erase_if): Guard behind __cpp_lib_erase_if.
4301         * include/std/latch: Switch to bits/version.h for __cpp_lib_latch.
4302         Guard header behind that FTM.
4303         * include/std/iterator: Switch to bits/version.h for
4304         __cpp_lib_null_iterators.
4305         * include/std/iomanip: Switch to bits/version.h for
4306         __cpp_lib_quoted_string_io.
4307         (quoted): Guard behind __cpp_lib_quoted_string_io.
4308         * include/std/functional: Switch to bits/version.h for
4309         __cpp_lib_{invoke{,_r},constexpr_functional,bind_front} and
4310         __cpp_lib_{not_fn,booyer_moore_searcher}.
4311         (invoke): Guard behind __cpp_lib_invoke.
4312         (invoke_r): Guard behind __cpp_lib_invoke_r.
4313         (bind_front): Guard behind __cpp_lib_bind_front.
4314         (not_fn): Guard behind __cpp_lib_not_fn.
4315         (boyer_moore_searcher, boyer_moore_horspool_searcher): Guard
4316         definition behind __cpp_lib_boyer_moore_searcher.
4317         * include/std/forward_list: Switch to bits/version.h for
4318         __cpp_lib_erase_if.
4319         (erase, erase_if): Guard behind __cpp_lib_erase_if.
4320         * include/std/format: Switch to bits/version.h for
4321         __cpp_lib_format.  Guard header behind that FTM.
4322         * include/std/filesystem: Switch to bits/version.h for
4323         __cpp_lib_filesystem.  Guard header behind that FTM.
4324         * include/std/expected: Switch to bits/version.h for
4325         __cpp_lib_expected.  Guard header behind it.
4326         * include/std/execution: Switch to bits/version.h for
4327         __cpp_lib_{execution,parallel_algorithm}.  Guard header behind
4328         either.
4329         * include/std/deque: Switch to bits/version.h for
4330         __cpp_lib_erase_if.
4331         (erase, erase_if): Guard behind __cpp_lib_erase_if.
4332         * include/std/coroutine: Switch to bits/version.h for
4333         __cpp_lib_coroutine.  Guard header behind that FTM.
4334         * include/std/concepts: Switch to bits/version.h for
4335         __cpp_lib_concepts.  Guard header behind that FTM.
4336         * include/std/complex: Switch to bits/version.h for
4337         __cpp_lib_{complex_udls,constexpr_complex}.
4338         (operator""if, operator""i, operator""il): Guard behind
4339         __cpp_lib_complex_udls.
4340         * include/std/charconv: Swtich to bits/version.h for
4341         __cpp_lib_{to_chars,constexpr_charconv}.
4342         * include/std/bitset: Switch to bits/version.h for
4343         __cpp_lib_constexpr_bitset.
4344         * include/std/bit: Switch to bits/version.h for
4345         __cpp_lib_{bit_cast,byteswap,bitops,int_pow2,endian}.
4346         (bit_cast): Guard behind __cpp_lib_bit_cast.
4347         (byteswap): Guard behind __cpp_lib_byteswap.
4348         (rotl, rotr, countl_zero, countl_one, countr_zero, countr_one)
4349         (popcount): Guard behind __cpp_lib_bitops.
4350         (has_single_bit, bit_ceil, bit_floor, bit_width): Guard behind
4351         __cpp_lib_int_pow2.
4352         (endian): Guard behind __cpp_lib_endian.
4353         * include/std/barrier: Switch to bits/version.h for
4354         __cpp_lib_barrier.  Guard header behind that FTM.
4355         * include/std/atomic: Switch to bits/version.h for
4356         __cpp_lib_atomic_{is_always_lock_free,float,ref}
4357         and __cpp_lib_lock_free_type_aliases.
4358         (*::is_always_lock_free): Guard behind
4359         __cpp_lib_atomic_is_always_lock_free.
4360         (atomic<float>): Guard behind __cpp_lib_atomic_float.
4361         (atomic_ref): Guard behind __cpp_lib_atomic_ref.
4362         (atomic_signed_lock_free, atomic_unsigned_lock_free): Guard behind
4363         __cpp_lib_atomic_lock_free_type_aliases.
4364         * include/std/array: Switch to bits/version.h for
4365         __cpp_lib_to_array.
4366         (to_array): Guard behind __cpp_lib_to_array.
4367         * include/std/any: Switch to bits/version.h for __cpp_lib_any.
4368         Guard header behind that FTM.
4369         * include/std/algorithm: Switch to bits/version.h for
4370         __cpp_lib_parallel_algorithm.
4371         * include/c_global/cstddef: Switch to bits/version.h for
4372         __cpp_lib_byte.
4373         (byte): Guard behind __cpp_lib_byte.
4374         * include/c_global/cmath: Switch to bits/version.h for
4375         __cpp_lib_{hypot,interpolate}.
4376         (hypot3): Guard behind __cpp_lib_hypot.
4377         (lerp): Guard behind __cpp_lib_interpolate.
4378         * include/c_compatibility/stdatomic.h: Switch to
4379         bits/stl_version.h for __cpp_lib_atomic.  Guard header behind that
4380         FTM.
4381         * include/bits/utility.h: Switch to bits/version.h for
4382         __cpp_lib_{tuple_element_t,integer_sequence,ranges_zip}.
4383         (tuple_element_t): Guard behind __cpp_lib_tuple_element_t.
4384         (integer_sequence et al): Guard behind __cpp_lib_integer_sequence.
4385         * include/bits/uses_allocator_args.h: Switch to bits/version.h for
4386         __cpp_lib_make_obj_using_allocator.  Guard header behind that FTM.
4387         * include/bits/unordered_map.h: Switch to bits/version.h for
4388         __cpp_lib_unordered_map_try_emplace.
4389         (try_emplace): Guard behind __cpp_lib_unordered_map_try_emplace.
4390         * include/bits/unique_ptr.h: Switch to bits/version.h for
4391         __cpp_lib_{constexpr_memory,make_unique}.
4392         (make_unique): Guard behind __cpp_lib_make_unique.
4393         * include/bits/stl_vector.h: Switch to bits/version.h for
4394         __cpp_lib_constexpr_vector.
4395         * include/bits/stl_uninitialized.h: Switch to bits/version.h for
4396         __cpp_lib_raw_memory_algorithms.
4397         (uninitialized_default_construct)
4398         (uninitialized_default_construct_n, uninitialized_move)
4399         (uninitialized_move_n, uninitialized_value_construct)
4400         (uninitialized_value_construct_n): Guard behind
4401         __cpp_lib_raw_memory_algorithms.
4402         * include/bits/stl_tree.h: Switch to bits/version.h for
4403         __cpp_lib_generic_associative_lookup.
4404         * include/bits/stl_stack.h: Switch to bits/version.h for
4405         __cpp_lib_adaptor_iterator_pair_constructor.
4406         (stack): Guard iterator-pair constructor behind
4407         __cpp_lib_adaptor_iterator_pair_constructor.
4408         * include/bits/stl_queue.h: Switch to bits/version.h for
4409         __cpp_lib_adaptor_iterator_pair_constructor.
4410         (queue): Guard iterator-pair constructor behind
4411         __cpp_lib_adaptor_iterator_pair_constructor.
4412         * include/bits/stl_pair.h: Switch to bits/version.h for
4413         __cpp_lib_{concepts,tuples_by_type}.
4414         (get): Guard type-getting overloads behind
4415         __cpp_lib_tuples_by_type.
4416         * include/bits/stl_map.h: Switch to bits/version.h for
4417         __cpp_lib_map_try_emplace.
4418         (map<>::try_emplace): Guard behind __cpp_lib_map_try_emplace.
4419         * include/bits/stl_list.h: Switch to bits/version.h for
4420         __cpp_lib_list_remove_return_type.
4421         (__remove_return_type, _GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG)
4422         [C++20]: guard behind __cpp_lib_list_remove_return_type instead.
4423         * include/bits/stl_iterator.h: Switch to bits/version.h for
4424         __cpp_lib_{constexpr_iterator,array_constexpr} and
4425         __cpp_lib_{make_reverse_iterator,move_iterator_concept}.
4426         (make_reverse_iterator): Guard behind
4427         __cpp_lib_make_reverse_iterator.
4428         (iterator_concept et al): Guard __cpp_lib_move_iterator_concept
4429         changes behind that FTM.
4430         * include/bits/stl_function.h: Switch to bits/version.h for
4431         __cpp_lib_transparent_operators.
4432         (equal_to, not_equal_to, greater, less, greater_equal)
4433         (less_equal, bit_and, bit_or, bit_xor, bit_not, logical_and)
4434         (logical_or, logical_not, plus, minus, multiplies, divides)
4435         (modulus, negate): Guard '= void' fwdecls behind
4436         __cpp_lib_transparent_operators.
4437         (plus<void>, minus<void>, multiplies<void>, divides<void>)
4438         (modulus<void>, negate<void>, logical_and<void>, logical_or<void>)
4439         (logical_not<void>, bit_and<void>, bit_or<void>, bit_xor<void>)
4440         (equal_to<void>, not_equal_to<void>, greater<void>, less<void>)
4441         (greater_equal<void>, less_equal<void>, bit_not<void>)
4442         (__has_is_transparent): Guard behind
4443         __cpp_lib_transparent_operators.
4444         * include/bits/stl_algobase.h: Switch to bits/version.h for
4445         __cpp_lib_robust_nonmodifying_seq_ops.
4446         (robust equal, mismatch): Guard behind
4447         __cpp_lib_nonmember_container_access.
4448         * include/bits/stl_algo.h: Swtich to bits/version.h for
4449         __cpp_lib_{clamp,sample}.
4450         (clamp): Guard behind __cpp_lib_clamp.
4451         (sample): Guard behind __cpp_lib_sample.
4452         * include/bits/specfun.h: Switch to bits/version.h for
4453         __cpp_lib_math_special_functions and __STDCPP_MATH_SPEC_FUNCS__.
4454         * include/bits/shared_ptr_base.h: Switch to bits/version.h for
4455         __cpp_lib_{smart_ptr_for_overwrite,shared_ptr_arrays}.
4456         (_Sp_overwrite_tag): Guard behind
4457         __cpp_lib_smart_ptr_for_overwrite.
4458         * include/bits/shared_ptr_atomic.h: Switch to bits/version.h for
4459         __cpp_lib_atomic_shared_ptr.
4460         * include/bits/shared_ptr.h: Switch to bits/version.h for
4461         __cpp_lib_{enable_shared_from_this,shared_ptr_weak_type}.
4462         (shared_ptr<T>::weak_type): Guard behind
4463         __cpp_lib_shared_ptr_weak_type.
4464         (enable_shared_from_this<T>::weak_from_this): Guard behind
4465         __cpp_lib_enable_shared_from_this.
4466         * include/bits/ranges_cmp.h: Switch to bits/version.h for
4467         __cpp_lib_ranges.
4468         * include/bits/ranges_algo.h: Switch to bits/version.h for
4469         __cpp_lib_{shift,ranges_{contains,find_last,fold,iota}}.
4470         * include/bits/range_access.h: Switch to bits/version.h for
4471         __cpp_lib_nonmember_container_access
4472         (size, empty, data): Guard behind
4473         __cpp_lib_nonmember_container_access.
4474         (ssize): Guard behind __cpp_lib_ssize.
4475         * include/bits/ptr_traits.h: Switch to bits/version.h. for
4476         __cpp_lib_{constexpr_memory,to_address}.
4477         (to_address): Guard behind __cpp_lib_to_address.
4478         * include/bits/node_handle.h: Switch to bits/version.h for
4479         __cpp_lib_node_extract.  Guard header behind that FTM.
4480         * include/bits/move_only_function.h: Switch to bits/version.h for
4481         __cpp_lib_move_only_function.  Guard header behind that FTM.
4482         * include/bits/move.h: Switch to bits/version.h for
4483         __cpp_lib_addressof_constexpr.
4484         * include/bits/ios_base.h: Switch to bits/version.h for
4485         __cpp_lib_ios_noreplace.
4486         (noreplace): Guard with __cpp_lib_ios_noreplace.
4487         * include/bits/hashtable.h: Switch to bits/version.h for
4488         __cpp_lib_generic_unordered_lookup.
4489         (_M_equal_range_tr, _M_count_tr, _M_find_tr): Guard behind
4490         __cpp_lib_generic_unordered_lookup.
4491         * include/bits/forward_list.h: Switch to bits/version.h for
4492         __cpp_lib_list_remove_return_type.
4493         (__remove_return_type): Guard behind
4494         __cpp_lib_list_remove_return_type.
4495         * include/bits/erase_if.h: Switch to bits/version.h for
4496         __cpp_lib_erase_if.
4497         * include/bits/cow_string.h: Switch to bits/version.h for
4498         __cpp_lib_constexpr_string.
4499         * include/bits/chrono.h: Swtich to bits/version.h for
4500         __cpp_lib_chrono{,_udls}.
4501         (ceil): Guard behind __cpp_lib_chrono.
4502         (operator""ns et al): Guard behind __cpp_lib_chrono_udls.
4503         * include/bits/char_traits.h: Switch to bits/version.h for
4504         __cpp_lib_constexpr_char_traits.
4505         * include/bits/basic_string.h: Switch to bits/version.h for
4506         __cpp_lib_{constexpr_string,string_{resize_and_overwrite,udls}}.
4507         (resize_and_overwrite): Guard behind
4508         __cpp_lib_string_resize_and_overwrite.
4509         (operator""s): Guard behind __cpp_lib_string_udls.
4510         * include/bits/atomic_wait.h: Switch to bits/version.h for
4511         __cpp_lib_atomic_wait.  Guard header behind that FTM.
4512         * include/bits/atomic_base.h: Switch to bits/version.h for
4513         __cpp_lib_atomic_value_initialization and
4514         __cpp_lib_atomic_flag_test.
4515         (atomic_flag::test): Guard behind __cpp_lib_atomic_flag_test,
4516         rather than C++20.
4517         * include/bits/allocator.h: Switch to bits/version.h for
4518         __cpp_lib_incomplete_container_elements.
4519         * include/bits/alloc_traits.h: Switch to using bits/version.h for
4520         __cpp_lib_constexpr_dynamic_alloc and
4521         __cpp_lib_allocator_traits_is_always_equal.
4522         * include/bits/align.h: Switch to bits/version.h for defining
4523         __cpp_lib_assume_aligned.
4524         (assume_aligned): Guard with __cpp_lib_assume_aligned.
4525         * include/bits/algorithmfwd.h: Switch to bits/version.h for
4526         defining __cpp_lib_constexpr_algorithms.
4527         * include/std/stacktrace: Switch to bits/version.h for
4528         __cpp_lib_stacktrace.  Guard header behind that FTM.
4529         * testsuite/23_containers/array/tuple_interface/get_neg.cc:
4530         Update line numbers.
4531
4532 2023-08-16  Arsen Arsenović  <arsen@aarsen.me>
4533
4534         * include/Makefile.am (bits_freestanding): Add version.h.
4535         (allcreated): Add version.h.
4536         (${bits_srcdir}/version.h): New rule.  Regenerates
4537         version.h out of version.{def,tpl}.
4538         * include/Makefile.in: Regenerate.
4539         * include/bits/version.def: New file.  Declares a list of
4540         all feature test macros, their values and their preconditions.
4541         * include/bits/version.tpl: New file.  Turns version.def
4542         into a sequence of #if blocks.
4543         * include/bits/version.h: New file.  Generated from
4544         version.def.
4545         * include/std/version: Replace with a __glibcxx_want_all define
4546         and bits/version.h include.
4547
4548 2023-08-14  Paul Dreik  <gccpatches@pauldreik.se>
4549
4550         PR libstdc++/110860
4551         * include/std/format (__formatter_fp::format): Use frexp instead
4552         of log10.
4553
4554 2023-08-12  Ken Matsui  <kmatsui@gcc.gnu.org>
4555
4556         * include/std/type_traits (true_type): Use __bool_constant
4557         instead.
4558         (false_type): Likewise.
4559         (bool_constant): Likewise.
4560
4561 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
4562
4563         PR libstdc++/110990
4564         * include/std/format (_Seq_sink::get): Only call _M_overflow if
4565         its precondition is met.
4566         (_Iter_sink::_M_finish): Likewise.
4567         (_Iter_sink<C, ContigIter>::_M_overflow): Only switch to the
4568         internal buffer after running out of space.
4569         (_Iter_sink<C, ContigIter>::_M_finish): Do not use _M_overflow.
4570         (_Counting_sink::count): Likewise.
4571         * testsuite/std/format/functions/format_to_n.cc: Check cases
4572         where the output fits into the buffer.
4573
4574 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
4575
4576         PR libstdc++/104167
4577         * include/bits/chrono_io.h (operator|=, operator|): Add noexcept
4578         to _ChronoParts operators.
4579         (from_stream, parse): Define new functions.
4580         (__detail::_Parse, __detail::_Parser): New class templates.
4581         * include/std/chrono (__cpp_lib_chrono): Define to 201907L for
4582         C++20.
4583         * include/std/version (__cpp_lib_chrono): Likewise.
4584         * testsuite/20_util/duration/arithmetic/constexpr_c++17.cc:
4585         Adjust expected value of feature test macro.
4586         * testsuite/20_util/duration/io.cc: Test parsing.
4587         * testsuite/std/time/clock/file/io.cc: Likewise.
4588         * testsuite/std/time/clock/gps/io.cc: Likewise.
4589         * testsuite/std/time/clock/system/io.cc: Likewise.
4590         * testsuite/std/time/clock/tai/io.cc: Likewise.
4591         * testsuite/std/time/clock/utc/io.cc: Likewise.
4592         * testsuite/std/time/day/io.cc: Likewise.
4593         * testsuite/std/time/month/io.cc: Likewise.
4594         * testsuite/std/time/month_day/io.cc: Likewise.
4595         * testsuite/std/time/weekday/io.cc: Likewise.
4596         * testsuite/std/time/year/io.cc: Likewise.
4597         * testsuite/std/time/year_month/io.cc: Likewise.
4598         * testsuite/std/time/year_month_day/io.cc: Likewise.
4599         * testsuite/std/time/syn_c++20.cc: Check value of macro and for
4600         the existence of parse and from_stream in namespace chrono.
4601         * testsuite/std/time/clock/local/io.cc: New test.
4602         * testsuite/std/time/parse.cc: New test.
4603
4604 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
4605
4606         PR libstdc++/110860
4607         * include/std/format (__formatter_fp::format): Do not call log10
4608         with zero values.
4609
4610 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
4611
4612         * python/libstdcxx/v6/printers.py (StdChronoCalendarPrinter):
4613         Check for out-of-range month an weekday indices.
4614         * testsuite/libstdc++-prettyprinters/chrono.cc: Check invalid
4615         month and weekday values.
4616
4617 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
4618
4619         * include/bits/stl_iterator.h (__clamped_iter_cat_t): Remove.
4620
4621 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
4622
4623         PR libstdc++/110974
4624         * include/std/format (_Spec::_S_parse_width_or_precision): Check
4625         for empty range before dereferencing iterator.
4626         * testsuite/std/format/string.cc: Check for expected exception.
4627         Fix expected exception message in test_pr110862() and actually
4628         call it.
4629
4630 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
4631
4632         PR libstdc++/110968
4633         * include/std/format (__formatter_fp::format): Check return
4634         value of _M_localize.
4635         * testsuite/std/format/functions/format.cc: Check classic
4636         locale.
4637
4638 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
4639
4640         PR libstdc++/110970
4641         * include/bits/stl_iterator.h (__detail::__move_iter_cat): Use
4642         __iter_category_t.
4643         (iterator_traits<common_iterator<I, S>>::_S_iter_cat): Likewise.
4644         (__detail::__basic_const_iterator_iter_cat): Likewise.
4645         * include/bits/stl_iterator_base_types.h (__iterator_category_t):
4646         Rename to __iter_category_t.
4647
4648 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4649
4650         * include/bits/chrono.h (duration_cast): Do not use braces
4651         around statements for C++11 constexpr rules.
4652         * include/bits/stl_algobase.h (__lg): Rewrite as a single
4653         statement for C++11 constexpr rules.
4654         * include/experimental/bits/fs_path.h (path::string): Use
4655         _GLIBCXX17_CONSTEXPR not _GLIBCXX_CONSTEXPR for 'if constexpr'.
4656         * include/std/charconv (__to_chars_8): Initialize variable for
4657         C++17 constexpr rules.
4658
4659 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4660
4661         * include/bits/list.tcc (list::sort(Cmp)): Fix -Wsign-compare
4662         warning for loop condition.
4663
4664 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4665
4666         * include/std/complex: Add diagnostic pragma for clang.
4667
4668 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4669
4670         * include/bits/shared_ptr_atomic.h (atomic): Change class-head
4671         to struct.
4672         * include/bits/stl_tree.h (_Rb_tree_merge_helper): Change
4673         class-head to struct in friend declaration.
4674         * include/std/chrono (tzdb_list::_Node): Likewise.
4675         * include/std/future (_Task_state_base, _Task_state): Likewise.
4676         * include/std/scoped_allocator (__inner_type_impl): Likewise.
4677         * include/std/valarray (_BinClos, _SClos, _GClos, _IClos)
4678         (_ValFunClos, _RefFunClos): Change class-head to struct.
4679
4680 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4681
4682         * include/bits/alloc_traits.h (allocate): Add [[maybe_unused]]
4683         attribute.
4684         * include/bits/regex_executor.tcc: Remove name of unused
4685         parameter.
4686         * include/bits/shared_ptr_atomic.h (atomic_is_lock_free):
4687         Likewise.
4688         * include/bits/stl_uninitialized.h: Likewise.
4689         * include/bits/streambuf_iterator.h (operator==): Likewise.
4690         * include/bits/uses_allocator.h: Likewise.
4691         * include/c_global/cmath (isfinite, isinf, isnan): Likewise.
4692         * include/std/chrono (zoned_time): Likewise.
4693         * include/std/future (__future_base::_S_allocate_result):
4694         Likewise.
4695         (packaged_task): Likewise.
4696         * include/std/optional (_Optional_payload_base): Likewise.
4697         * include/std/scoped_allocator (__inner_type_impl): Likewise.
4698         * include/std/tuple (_Tuple_impl): Likewise.
4699
4700 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4701
4702         * include/bits/new_allocator.h (__new_allocator): Define copy
4703         assignment operator as defaulted.
4704         * include/std/complex (complex<float>, complex<double>)
4705         (complex<long double>): Define copy constructor as defaulted.
4706
4707 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4708
4709         * include/std/format: Fix some warnings.
4710         (__format::__write(Ctx&, basic_string_view<CharT>)): Remove
4711         unused function template.
4712
4713 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
4714
4715         PR libstdc++/110860
4716         * include/std/format (__formatter_fp::format): Do not use
4717         __builtin_abs and __builtin_log10 with arbitrary floating-point
4718         types.
4719
4720 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
4721
4722         PR libstdc++/110917
4723         * include/std/format (__format::_Iter_sink<CharT, OutIter>):
4724         Constrain partial specialization for contiguous iterators to
4725         require the value type to be CharT.
4726         * testsuite/std/format/functions/format_to.cc: New test.
4727
4728 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
4729
4730         PR libstdc++/110862
4731         * include/std/format (_Scanner::_M_on_replacement_field):
4732         Check for expected '}' before incrementing iterator.
4733         * testsuite/std/format/string.cc: Check "{0:{0}" format string.
4734
4735 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
4736
4737         * configure: Regenerate.
4738
4739 2023-08-07  Alan Modra  <amodra@gmail.com>
4740
4741         * configure: Regenerate.
4742
4743 2023-08-07  Alexander von Gluck IV  <kallisti5@unixzen.com>
4744
4745         * configure: Regenerate.
4746
4747 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
4748
4749         * configure: Regenerate.
4750
4751 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
4752
4753         * configure: Regenerate.
4754
4755 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
4756
4757         * configure: Regenerate.
4758
4759 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
4760
4761         * configure: Regenerate.
4762
4763 2023-08-06  François Dumont  <fdumont@gcc.gnu.org>
4764
4765         * config/abi/pre/gnu-versioned-namespace.ver: Add __cxa_call_terminate
4766         symbol export.
4767
4768 2023-07-30  François Dumont  <fdumont@gcc.gnu.org>
4769
4770         * src/c++11/compatibility-ldbl-facets-aliases.h: Replace #define with
4771         proper #error.
4772         * src/c++11/locale-inst-monetary.h: Likewise.
4773         * src/c++11/locale-inst-numeric.h: Likewise.
4774
4775 2023-07-27  Jonathan Wakely  <jwakely@redhat.com>
4776
4777         PR libstdc++/108046
4778         * include/std/format (__formatter_fp::format): Ensure __expc is
4779         always set for all presentation types. Set __z correctly for
4780         zero precision.
4781         * testsuite/std/format/functions/format.cc: Check problem cases.
4782
4783 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
4784
4785         PR libstdc++/110807
4786         * testsuite/23_containers/vector/bool/110807.cc: Require c++11.
4787
4788 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
4789
4790         PR libstdc++/110807
4791         * include/bits/stl_bvector.h (vector(const vector&)): Access
4792         iterators before allocating.
4793         * include/bits/vector.tcc (vector<bool>::_M_insert_range):
4794         Likewise.
4795         * testsuite/23_containers/vector/bool/110807.cc: New test.
4796
4797 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
4798
4799         * include/bits/algorithmfwd.h (random_shuffle): Add deprecated
4800         attribute.
4801         * include/bits/stl_algo.h (random_shuffle): Correct comments.
4802         * testsuite/25_algorithms/random_shuffle/1.cc: Disable
4803         deprecated warnings.
4804         * testsuite/25_algorithms/random_shuffle/59603.cc: Likewise.
4805         * testsuite/25_algorithms/random_shuffle/moveable.cc: Likewise.
4806         * testsuite/25_algorithms/random_shuffle/deprecated.cc: New
4807         test.
4808
4809 2023-07-26  Nathaniel Shead  <nathanieloshead@gmail.com>
4810
4811         * testsuite/25_algorithms/equal/constexpr_neg.cc: Update diagnostic
4812         locations.
4813         * testsuite/26_numerics/gcd/105844.cc: Likewise.
4814         * testsuite/26_numerics/lcm/105844.cc: Likewise.
4815
4816 2023-07-24  Deev Patel  <pateldeev@nevada.unr.edu>
4817
4818         * include/std/format (_Formatting_scanner::_M_on_chars): Add
4819         missing constexpr specifier.
4820         (_Formatting_scanner::_M_format_arg): Likewise.
4821
4822 2023-07-24  Jonathan Wakely  <jwakely@redhat.com>
4823
4824         PR libstdc++/110653
4825         * include/bits/basic_string.h [!HAVE_STOF] (stof): Do not
4826         throw an exception for zero result.
4827         [HAVE_BROKEN_STRTOLD] (stold): Do not use strtold.
4828
4829 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4830
4831         PR libstdc++/110077
4832         * src/c++17/floating_from_chars.cc (from_chars): Only define
4833         _Float128 overload when using __strfromf128.
4834
4835 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4836
4837         PR libstdc++/110593
4838         * include/bits/chrono.h (duration): Improve static assert
4839         messages.
4840         (__is_ratio): Move to ...
4841         * include/std/ratio (__is_ratio): ... here.
4842         (__is_ratio_v): New variable template and partial
4843         specialization.
4844         (__are_both_ratios): New function template.
4845         (__ratio_multiply, ratio_equal, ratio_less, __ratio_add):
4846         Add static assertion.
4847         * testsuite/20_util/ratio/requirements/type_constraints.cc:
4848         New test.
4849         * testsuite/20_util/duration/requirements/typedefs_neg1.cc:
4850         Adjust expected error.
4851         * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
4852         Likewise.
4853
4854 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4855
4856         * include/bits/chrono_io.h (__formatter_chrono::_M_format):
4857         Do not set __is_neg for hh_mm_ss before calling
4858         _M_format_to_ostream. Change __print_sign lambda to only check
4859         __is_neg for durations and hh_mm_ss types.
4860         (__formatter_chrono::_M_format_to_ostream): Only check __is_neg
4861         for duration types.
4862         * testsuite/std/time/hh_mm_ss/io.cc: Check negative values.
4863
4864 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4865
4866         PR libstdc++/110719
4867         * include/bits/chrono_io.h (__formatter_chrono::_S_floor_seconds):
4868         Handle duration and hh_mm_ss.
4869         * testsuite/20_util/duration/io.cc: Check locale-specific
4870         formats.
4871         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
4872
4873 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4874
4875         * include/std/format (__write_padded): Initialize first element
4876         of array to avoid a -Wmaybe-uninitialized warning.
4877
4878 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4879
4880         PR libstdc++/110719
4881         * include/bits/chrono_io.h (__formatter_chrono::_M_parse): Fix
4882         allowed modifiers for %z and %Z. Fix -Wparentheses and
4883         -Wnarrowing warnings.
4884         (__formatter_chrono::_M_format): Call new functions for %d, %e,
4885         %H, %I, %m and %M.
4886         (__formatter_chrono::_M_c): Use _S_floor_seconds to remove
4887         subsecond precision.
4888         (__formatter_chrono::_M_C_y_Y): Use _M_locale_fmt to handle
4889         modifiers.
4890         (__formatter_chrono::_M_e): Replace with _M_d_e and use
4891         _M_locale_fmt.
4892         (__formatter_chrono::_M_I): Replace with _M_H_I and use
4893         _M_locale_fmt.
4894         (__formatter_chrono::_M_m): New function.
4895         (__formatter_chrono::_M_M): New function.
4896         (__formatter_chrono::_M_r): Use _M_locale_fmt.
4897         (__formatter_chrono::_M_S): Likewise.
4898         (__formatter_chrono::_M_u_w): Likewise.
4899         (__formatter_chrono::_M_U_V_W): Likewise.
4900         (__formatter_chrono::_M_X): Use _S_floor_seconds.
4901         (__formatter_chrono::_M_Z): Fix untested branch for wchar_t.
4902         (__formatter_chrono::_S_altnum): Remove function.
4903         (__formatter_chrono::_S_dd_zero_fill): Remove function.
4904         (__formatter_chrono::_S_floor_seconds): New function.
4905         (__formatter_chrono::_M_locale_fmt): New function.
4906         * testsuite/std/time/clock/system/io.cc: Adjust expected output
4907         for locale-specific formats and check modified formats.
4908         * testsuite/std/time/clock/utc/io.cc: Likewise.
4909         * testsuite/std/time/zoned_time/io.cc: New test.
4910
4911 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4912
4913         PR libstdc++/110708
4914         * include/bits/chrono_io.h (__formatter_chrono::_M_parse): Only
4915         allow a single modifier.
4916         * testsuite/std/time/format.cc: Check multiple modifiers.
4917
4918 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4919
4920         PR libstdc++/110653
4921         * testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc:
4922         Remove dg-require-string-conversions.
4923         * testsuite/21_strings/basic_string/numeric_conversions/char/stof.cc:
4924         Likewise.
4925         * testsuite/21_strings/basic_string/numeric_conversions/char/stoi.cc:
4926         Likewise.
4927         * testsuite/21_strings/basic_string/numeric_conversions/char/stol.cc:
4928         Likewise.
4929         * testsuite/21_strings/basic_string/numeric_conversions/char/stoul.cc:
4930         Likewise.
4931
4932 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4933
4934         PR libstdc++/110653
4935         * include/bits/basic_string.h [!_GLIBCXX_HAVE_STRTOF] (stof):
4936         Define in terms of std::stod.
4937
4938 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4939
4940         PR libstdc++/110653
4941         * include/bits/basic_string.h [_GLIBCXX_HAVE_STRTOF] (stof):
4942         Define.
4943         [_GLIBCXX_HAVE_STRTOLD] (stold): Define.
4944         * include/c_global/cstdlib [_GLIBCXX_HAVE_STRTOF] (strtof):
4945         Declare in namespace std.
4946         [_GLIBCXX_HAVE_STRTOLD] (strtold): Likewise.
4947
4948 2023-07-13  Jonathan Wakely  <jwakely@redhat.com>
4949
4950         PR libstdc++/110653
4951         * include/bits/basic_string.h (stoi, stol, stoul, stod): Do not
4952         depend on _GLIBCXX_USE_C99_STDLIB.
4953         [__LONG_WIDTH__ == __LONG_LONG_WIDTH__] (stoll, stoull): Define
4954         in terms of stol and stoul respectively.
4955         [__DBL_MANT_DIG__ == __LDBL_MANT_DIG__] (stold): Define in terms
4956         of stod.
4957
4958 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
4959
4960         PR libstdc++/95048
4961         * testsuite/27_io/filesystem/path/construct/95048.cc: Check
4962         conversions to wide strings.
4963         * testsuite/experimental/filesystem/path/construct/95048.cc:
4964         Likewise.
4965
4966 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
4967
4968         * config/io/basic_file_stdio.cc: Define LFS macros.
4969         (__basic_file<char>::open): Use fopen unconditionally.
4970         (get_file_offset): Use lseek unconditionally.
4971         (__basic_file<char>::seekoff): Likewise.
4972         (__basic_file<char>::showmanyc): Use fstat unconditionally.
4973
4974 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
4975
4976         PR libstdc++/110574
4977         * acinclude.m4 (GLIBCXX_CHECK_LFS): Check for fseeko and ftello
4978         and define _GLIBCXX_USE_FSEEKO_FTELLO.
4979         * config.h.in: Regenerate.
4980         * configure: Regenerate.
4981         * config/io/basic_file_stdio.cc (xwrite) [_GLIBCXX_USE_STDIO_PURE]:
4982         Check for fwrite error correctly.
4983         (__basic_file<char>::xsgetn) [_GLIBCXX_USE_STDIO_PURE]: Check for
4984         fread error correctly.
4985         (get_file_offset): New function.
4986         (__basic_file<char>::seekoff) [_GLIBCXX_USE_STDIO_PURE]: Use
4987         fseeko if available. Use get_file_offset instead of return value
4988         of fseek.
4989         (__basic_file<char>::showmanyc): Use get_file_offset.
4990
4991 2023-07-12  Ken Matsui  <kmatsui@gcc.gnu.org>
4992
4993         * include/std/type_traits (__make_unsigned_selector): Use
4994         __is_enum built-in trait.
4995         (__make_signed_selector): Likewise.
4996         (__underlying_type_impl): Likewise.
4997
4998 2023-07-06  Tianqiang Shuai  <1101282468@qq.com>
4999
5000         * config/io/basic_file_stdio.cc (xwrite) [USE_STDIO_PURE]: Fix
5001         first argument.
5002
5003 2023-07-06  Jonathan Wakely  <jwakely@redhat.com>
5004
5005         PR libstdc++/110574
5006         * doc/xml/manual/configure.xml: Describe stdio_pure argument to
5007         --enable-cstdio.
5008         * doc/html/manual/configure.html: Regenerate.
5009
5010 2023-07-05  Thomas Rodgers  <trodgers@redhat.com>
5011
5012         * testsuite/25_algorithms/pstl/alg_sorting/set.cc: Delete
5013         file.
5014         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
5015         New file.
5016         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
5017         Likewise.
5018         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
5019         Likewise.
5020         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
5021         Likewise.
5022         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h:
5023         Likewise.
5024
5025 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
5026
5027         * testsuite/23_containers/forward_list/debug/iterator1_neg.cc:
5028         Skip as UNSUPPORTED for C++98 mode.
5029         * testsuite/23_containers/forward_list/debug/iterator3_neg.cc:
5030         Likewise.
5031
5032 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
5033
5034         PR libstdc++/110542
5035         * include/bits/stl_uninitialized.h (__uninitialized_default_n):
5036         Do not use std::fill_n during constant evaluation.
5037
5038 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
5039
5040         * include/bits/vector.tcc (_M_default_append): Replace try-block
5041         with RAII types.
5042
5043 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
5044
5045         * include/bits/iterator_concepts.h (projected): Add typename.
5046
5047 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
5048
5049         * testsuite/27_io/headers/iosfwd/synopsis.cc: Make wsyncbuf and
5050         wosyncstream depend on _GLIBCXX_USE_CXX11_ABI.
5051
5052 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
5053
5054         * include/pstl/pstl_config.h (_PSTL_PRAGMA_SIMD_SCAN,
5055         _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN, _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN):
5056         Define to OpenMP 5.0 pragmas even for GCC 10.0+.
5057         (_PSTL_UDS_PRESENT): Define to 1 for GCC 10.0+.
5058
5059 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
5060
5061         * include/bits/alloc_traits.h (_Destroy): Qualify call.
5062         * include/bits/stl_construct.h (_Destroy, _Destroy_n): Likewise.
5063         * testsuite/23_containers/vector/cons/destroy-adl.cc: New test.
5064
5065 2023-07-03  Iain Sandoe  <iain@sandoe.co.uk>
5066
5067         * testsuite/lib/libstdc++.exp: Remove additional flag handled
5068         by Darwin specs.
5069
5070 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
5071
5072         PR libstdc++/110432
5073         * acinclude.m4 (GLIBCXX_CHECK_INIT_PRIORITY): New.
5074         * config.h.in: Regenerate.
5075         * configure: Regenerate.
5076         * configure.ac: Use GLIBCXX_CHECK_INIT_PRIORITY.
5077         * include/std/iostream: Use new autoconf macro as well as
5078         __has_attribute.
5079         * src/c++98/ios_base_init.h: Use new autoconf macro instead of
5080         __has_attribute.
5081
5082 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
5083
5084         * src/c++11/random.cc (random_device::_M_init): Add maybe_unused
5085         attribute.
5086
5087 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
5088
5089         PR libstdc++/105081
5090         * src/c++11/random.cc (random_device::_M_init): Throw
5091         std::system_error when the requested device is a valid token but
5092         not available at runtime.
5093
5094 2023-06-30  Hans-Peter Nilsson  <hp@axis.com>
5095
5096         PR libstdc++/108672
5097         * include/pstl/unseq_backend_simd.h (__simd_or): Re-apply using
5098         __INT32_TYPE__ instead of int32_t.
5099
5100 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
5101
5102         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define consistently
5103         with USE_ATOMIC_LIST_HEAD.
5104         (list_mutex): Replace global object with function. Use local
5105         static object when std::mutex constructor isn't constexpr.
5106
5107 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
5108
5109         PR libstdc++/110462
5110         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check that
5111         copy_file_range can be called with loff_t* arguments.
5112         * configure: Regenerate.
5113         * src/filesystem/ops-common.h (copy_file_copy_file_range):
5114         Use loff_t for offsets.
5115
5116 2023-06-29  Tom Tromey  <tromey@adacore.com>
5117
5118         * testsuite/lib/gdb-test.exp (gdb-test): Relax type-printer
5119         regexp.
5120
5121 2023-06-28  Jan Hubicka  <jh@suse.cz>
5122
5123         PR middle-end/109849
5124         * include/bits/c++config (std::__terminate): Mark cold.
5125         * include/bits/functexcept.h: Mark everything as cold.
5126         * libsupc++/exception: Mark terminate and unexpected as cold.
5127
5128 2023-06-26  Thomas Rodgers  <trodgers@redhat.com>
5129
5130         * include/pstl/algorithm_fwd.h: Synchronize with upstream.
5131         * include/pstl/algorithm_impl.h: Likewise.
5132         * include/pstl/execution_defs.h: Likewise.
5133         * include/pstl/execution_impl.h: Likewise.
5134         * include/pstl/glue_algorithm_impl.h: Likewise.
5135         * include/pstl/glue_execution_defs.h: Likewise.
5136         * include/pstl/glue_memory_impl.h: Likewise.
5137         * include/pstl/glue_numeric_impl.h: Likewise.
5138         * include/pstl/memory_impl.h: Likewise.
5139         * include/pstl/numeric_fwd.h: Likewise.
5140         * include/pstl/numeric_impl.h: Likewise.
5141         * include/pstl/parallel_backend.h: Likewise.
5142         * include/pstl/parallel_backend_serial.h: Likewise.
5143         * include/pstl/parallel_backend_tbb.h: Likewise.
5144         * include/pstl/parallel_impl.h: Likewise.
5145         * include/pstl/pstl_config.h: Likewise.
5146         * include/pstl/unseq_backend_simd.h: Likewise.
5147         * include/pstl/utils.h: Likewise.
5148         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc:
5149         Likewise.
5150         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc:
5151         Likewise.
5152         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc:
5153         Likewise.
5154         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc:
5155         Likewise.
5156         * testsuite/25_algorithms/pstl/alg_merge/merge.cc: Likewise.
5157         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc:
5158         Likewise.
5159         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc:
5160         Likewise.
5161         * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc:
5162         Likewise.
5163         * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc:
5164         Likewise.
5165         * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc:
5166         Likewise.
5167         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc:
5168         Likewise.
5169         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc:
5170         Likewise.
5171         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc:
5172         Likewise.
5173         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc:
5174         Likewise.
5175         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc:
5176         Likewise.
5177         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc:
5178         Likewise.
5179         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc:
5180         Likewise.
5181         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc:
5182         Likewise.
5183         * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc:
5184         Likewise.
5185         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc:
5186         Likewise.
5187         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc:
5188         Likewise.
5189         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc:
5190         Likewise.
5191         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc:
5192         Likewise.
5193         * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc:
5194         Likewise.
5195         * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc:
5196         Likewise.
5197         * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc:
5198         Likewise.
5199         * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc:
5200         Likewise.
5201         * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc:
5202         Likewise.
5203         * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc:
5204         Likewise.
5205         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc:
5206         Likewise.
5207         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc:
5208         Likewise.
5209         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc:
5210         Likewise.
5211         * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc:
5212         Likewise.
5213         * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc:
5214         Likewise.
5215         * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc:
5216         Likewise.
5217         * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc:
5218         Likewise.
5219         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc:
5220         Likewise.
5221         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc:
5222         Likewise.
5223         * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc:
5224         Likewise.
5225         * testsuite/25_algorithms/pstl/alg_sorting/includes.cc:
5226         Likewise.
5227         * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc:
5228         Likewise.
5229         * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc:
5230         Likewise.
5231         * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc:
5232         Likewise.
5233         * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc:
5234         Likewise.
5235         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc:
5236         Likewise.
5237         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc:
5238         Likewise.
5239         * testsuite/25_algorithms/pstl/alg_sorting/set.cc:
5240         Likewise.
5241         * testsuite/25_algorithms/pstl/alg_sorting/sort.cc:
5242         Likewise.
5243         * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc:
5244         Likewise.
5245         * testsuite/26_numerics/pstl/numeric_ops/reduce.cc:
5246         Likewise.
5247         * testsuite/26_numerics/pstl/numeric_ops/scan.cc:
5248         Likewise.
5249         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
5250         Likewise.
5251         * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc:
5252         Likewise.
5253         * testsuite/util/pstl/test_utils.h:
5254         Likewise.
5255
5256 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
5257
5258         PR libstdc++/110239
5259         * include/std/format (__format::__parse_integer): Fix buffer
5260         overflow for wide chars.
5261         (formatter<const void*, C>::format): Cast to uintptr_t instead
5262         of uint64_t.
5263         * testsuite/std/format/string.cc: Test too-large widths.
5264
5265 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
5266
5267         * include/bits/iterator_concepts.h (projected): Replace class
5268         template with alias template denoting an ADL-proofed helper.
5269         (incremental_traits<projected<Iter, Proj>>): Remove.
5270         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
5271         New test.
5272
5273 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
5274
5275         * include/debug/helper_functions.h (__get_distance)
5276         (__check_singular, __valid_range_aux, __valid_range): Qualify
5277         calls to disable ADL.
5278         (__check_singular_aux(const _Safe_iterator_base*)): Declare
5279         overload that was previously found via ADL.
5280
5281 2023-06-23  Jonathan Wakely  <jwakely@redhat.com>
5282
5283         * include/bits/vector.tcc (_M_realloc_insert): Replace try-block
5284         with RAII types.
5285
5286 2023-06-20  Jonathan Wakely  <jwakely@redhat.com>
5287
5288         * include/std/array (to_array(T(&)[N])): Remove redundant
5289         condition.
5290         (to_array(T(&&)[N])): Remove redundant std::move.
5291
5292 2023-06-16  Alexandre Oliva  <oliva@adacore.com>
5293
5294         * testsuite/20_util/from_chars/4.cc: Skip long double on
5295         aarch64-rtems.
5296
5297 2023-06-16  Joel Brobecker  <brobecker@adacore.com>
5298
5299         * configure.ac ["x${with_newlib}" = "xyes"]: Define
5300         HAVE_HYPOTF.  Add compile-checks for various long double
5301         math functions as well.
5302         * configure: Regenerate.
5303
5304 2023-06-14  Jonny Grant  <jg@jguk.org>
5305
5306         * doc/xml/manual/extensions.xml: Remove demangle exception
5307         description and include.
5308         * doc/html/manual/ext_demangling.html: Regenerate.
5309
5310 2023-06-10  Hans-Peter Nilsson  <hp@axis.com>
5311
5312         * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc (main)
5313         [! SIMULATOR_TEST]: Also exclude running test05.
5314         * testsuite/27_io/basic_istream/ignore/char/94749.cc: Ditto.
5315
5316 2023-06-09  Ken Matsui  <kmatsui@cs.washington.edu>
5317
5318         * include/std/type_traits: Use using instead of typedef
5319
5320 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
5321
5322         PR libstdc++/110077
5323         * src/c++17/floating_from_chars.cc (from_chars) <_Float128>:
5324         Only define if _Float128 and long double have different
5325         representations.
5326
5327 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
5328
5329         PR libstdc++/100285
5330         * include/experimental/internet [IPPROTO_TCP || IPPROTO_UDP]
5331         (basic_endpoint, basic_resolver_entry, resolver_base)
5332         (basic_resolver_results, basic_resolver): Only define if the tcp
5333         or udp protocols will be defined.
5334
5335 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
5336
5337         * acinclude.m4 (libtool_VERSION): Update to 6.0.33.
5338         * configure: Regenerate.
5339         * doc/xml/manual/abi.xml: Add libstdc++.so.6.0.33.
5340         * doc/html/manual/abi.html: Regenerate.
5341
5342 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
5343
5344         PR libstdc++/110149
5345         * include/std/format (formatter<const void*, charT>::parse):
5346         Only alow 0 and P for C++26 and non-strict modes.
5347         (formatter<const void*, charT>::format): Use toupper for P
5348         type, and insert zero-fill characters for 0 option.
5349         * testsuite/std/format/functions/format.cc: Check pointer
5350         formatting. Only check P2510R3 extensions conditionally.
5351         * testsuite/std/format/parse_ctx.cc: Only check P2510R3
5352         extensions conditionally.
5353
5354 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
5355
5356         PR libstdc++/110167
5357         * include/std/array (to_array): Initialize arrays of trivial
5358         types using memcpy. For non-trivial types, use lambda
5359         expressions instead of a separate helper function.
5360         (__to_array): Remove.
5361         * testsuite/23_containers/array/creation/110167.cc: New test.
5362
5363 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
5364
5365         * testsuite/23_containers/deque/modifiers/emplace/52799.cc:
5366         Removed.
5367         * testsuite/23_containers/deque/modifiers/emplace/const_iterator.cc:
5368         Removed.
5369         * testsuite/23_containers/list/modifiers/emplace/52799.cc:
5370         Removed.
5371         * testsuite/23_containers/list/modifiers/emplace/const_iterator.cc:
5372         Removed.
5373         * testsuite/23_containers/vector/modifiers/emplace/52799.cc:
5374         Removed.
5375         * testsuite/23_containers/vector/modifiers/emplace/const_iterator.cc:
5376         Removed.
5377         * testsuite/23_containers/deque/modifiers/emplace/1.cc: New
5378         test.
5379         * testsuite/23_containers/list/modifiers/emplace/1.cc: New
5380         test.
5381         * testsuite/23_containers/vector/modifiers/emplace/1.cc: New
5382         test.
5383
5384 2023-06-07  Jakub Jelinek  <jakub@redhat.com>
5385
5386         PR libstdc++/110145
5387         * testsuite/20_util/to_chars/double.cc: Include <cfloat>.
5388         (double_to_chars_test_cases,
5389         double_scientific_precision_to_chars_test_cases_2,
5390         double_fixed_precision_to_chars_test_cases_2): #if out 1e126, 4.91e-6
5391         and 5.547e-6 tests if FLT_EVAL_METHOD is negative or larger than 1.
5392         Add unconditional tests with corresponding double constants
5393         0x1.7a2ecc414a03fp+418, 0x1.4981285e98e79p-18 and
5394         0x1.7440bbff418b9p-18.
5395
5396 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
5397
5398         * testsuite/util/testsuite_abi.cc (check_version): Re-add
5399         CXXABI_1.3.14.
5400
5401 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
5402
5403         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
5404         Require effective target exceptions_enabled instead of using
5405         dg-skip-if.
5406         * testsuite/23_containers/vector/capacity/constexpr.cc: Expect
5407         shrink_to_fit() to be a no-op without exceptions enabled.
5408         * testsuite/23_containers/vector/capacity/shrink_to_fit.cc:
5409         Likewise.
5410         * testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
5411         Require effective target exceptions_enabled.
5412         * testsuite/ext/malloc_allocator/check_allocate_max_size.cc:
5413         Likewise.
5414         * testsuite/ext/mt_allocator/check_allocate_max_size.cc:
5415         Likewise.
5416         * testsuite/ext/new_allocator/check_allocate_max_size.cc:
5417         Likewise.
5418         * testsuite/ext/pool_allocator/check_allocate_max_size.cc:
5419         Likewise.
5420         * testsuite/ext/throw_allocator/check_allocate_max_size.cc:
5421         Likewise.
5422
5423 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
5424
5425         * testsuite/20_util/duration/cons/2.cc: Use values that aren't
5426         affected by rounding.
5427         * testsuite/20_util/from_chars/5.cc: Cast arithmetic result to
5428         double before comparing for equality.
5429         * testsuite/20_util/from_chars/6.cc: Likewise.
5430         * testsuite/20_util/variant/86874.cc: Use values that aren't
5431         affected by rounding.
5432         * testsuite/25_algorithms/lower_bound/partitioned.cc: Compare to
5433         original value instead of to floating-point-literal.
5434         * testsuite/26_numerics/random/discrete_distribution/cons/range.cc:
5435         Cast arithmetic result to double before comparing for equality.
5436         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/range.cc:
5437         Likewise.
5438         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/range.cc:
5439         Likewise.
5440         * testsuite/26_numerics/valarray/transcend.cc (eq): Check that
5441         the absolute difference is less than 0.01 instead of comparing
5442         to two decimal places.
5443         * testsuite/27_io/basic_istream/extractors_arithmetic/char/01.cc:
5444         Cast arithmetic result to double before comparing for equality.
5445         * testsuite/27_io/basic_istream/extractors_arithmetic/char/09.cc:
5446         Likewise.
5447         * testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc:
5448         Likewise.
5449         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc:
5450         Likewise.
5451         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc:
5452         Likewise.
5453         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/10.cc:
5454         Likewise.
5455         * testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
5456
5457 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
5458
5459         Revert:
5460         2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5461
5462         * configure.ac: Use AS_IF.
5463         * configure: Regenerate.
5464
5465 2023-06-07  Thomas Schwinge  <thomas@codesourcery.com>
5466
5467         * testsuite/lib/prune.exp (libstdc++-dg-prune): Support
5468         'UNSUPPORTED: [...]: exception handling disabled'.
5469
5470 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5471
5472         * testsuite/util/testsuite_abi.cc (check_version): Add
5473         CXXABI_1.3.15 symver and make it the latestp. Remove
5474         GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
5475
5476 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5477             Jakub Jelinek  <jakub@redhat.com>
5478
5479         PR libstdc++/104772
5480         * include/std/limits: (numeric_limits<__float128>): Define
5481         for __STRICT_ANSI__ as well.
5482         * testsuite/18_support/numeric_limits/128bit.cc: Remove
5483         check for __STRICT_ANSI__.
5484
5485 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5486
5487         * configure.ac: Use AS_IF.
5488         * configure: Regenerate.
5489
5490 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
5491
5492         PR libstdc++/109822
5493         * include/experimental/bits/simd_builtin.h (_S_store): Rewrite
5494         to avoid casts to other vector types. Implement store as
5495         succession of power-of-2 sized memcpy to avoid PR90424.
5496
5497 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
5498
5499         PR libstdc++/110054
5500         * include/experimental/bits/simd_builtin.h (_S_masked_store):
5501         Call into deduced ABI's SimdImpl after conversion.
5502         * include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
5503         Don't use _mm_maskmoveu_si128. Use the generic fall-back
5504         implementation. Also fix masked stores without SSE2, which
5505         were not doing anything before.
5506
5507 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
5508
5509         * include/experimental/bits/simd.h (__bit_cast): Use
5510         __gnu__::__vector_size__ instead of gnu::vector_size.
5511
5512 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5513
5514         PR libstdc++/110139
5515         * include/std/array (__array_traits<T, 0>::operator T*()): Make
5516         conversion operator explicit.
5517         (array::front): Use size_type as subscript operand.
5518         (array::data): Use static_cast to make conversion explicit.
5519         * testsuite/23_containers/array/element_access/110139.cc: New
5520         test.
5521
5522 2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
5523
5524         * include/bits/locale_classes.tcc: Remove check for
5525         codecvt<char8_t, char, mbstate_t> facet.
5526
5527 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5528
5529         * src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
5530         close-on-exec flag on file descriptors.
5531
5532 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5533
5534         PR libstdc++/108178
5535         * src/filesystem/ops-common.h (do_copy_file): Check for empty
5536         files by trying to read a character.
5537         * testsuite/27_io/filesystem/operations/copy_file_108178.cc:
5538         New test.
5539
5540 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
5541
5542         * acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
5543         * config.h.in: Regenerate.
5544         * configure: Regenerate.
5545         * src/filesystem/ops-common.h (copy_file_copy_file_range):
5546         Define new function.
5547         (do_copy_file): Use it.
5548
5549 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
5550
5551         * acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
5552         * config.h.in: Regenerate.
5553         * configure: Regenerate.
5554         * src/filesystem/ops-common.h (copy_file_sendfile): Define new
5555         function for sendfile logic. Loop to support large files. Skip
5556         zero-length files.
5557         (do_copy_file): Use it.
5558
5559 2023-06-04  Jason Merrill  <jason@redhat.com>
5560
5561         PR c++/97720
5562         * libsupc++/eh_call.cc (__cxa_call_terminate): Take void*.
5563         * config/abi/pre/gnu.ver: Add it.
5564
5565 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
5566
5567         * include/parallel/algobase.h: Include <parallel/search.h>.
5568
5569 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
5570
5571         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
5572         Add const to equality operator.
5573
5574 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
5575
5576         * include/std/expected (expected::and_then, expected::or_else)
5577         (expected::transform_error): Use _M_val and _M_unex instead of
5578         calling value() and error(), as per LWG 3938.
5579         (expected::transform): Likewise. Remove incorrect std::move
5580         calls from lvalue overloads.
5581         (expected<void, E>::and_then, expected<void, E>::or_else)
5582         (expected<void, E>::transform): Use _M_unex instead of calling
5583         error().
5584         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
5585         and transform, and for std::expected<void, E>.
5586         * testsuite/20_util/expected/lwg3938.cc: New test.
5587
5588 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
5589
5590         PR libstdc++/110060
5591         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
5592         Remove.
5593         (vector::size, vector::capacity): Remove calls to _M_invariant.
5594         * include/bits/vector.tcc (vector::_M_fill_assign): Add
5595         optimization hint to reallocating path.
5596         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
5597         Likewise.
5598         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
5599         to...
5600         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
5601         ...here. Check assign(FwdIter, FwdIter) too.
5602         * testsuite/23_containers/vector/types/1.cc: Revert addition
5603         of -Wno-stringop-overread option.
5604
5605 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
5606
5607         * doc/xml/manual/evolution.xml: Document removal of implicit
5608         allocator rebinding extensions in strict mode and for C++20.
5609         * doc/html/*: Regenerate.
5610
5611 2023-06-01  Jason Merrill  <jason@redhat.com>
5612
5613         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
5614         handlers in the cleanup phase.
5615
5616 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
5617
5618         PR libstdc++/110050
5619         * include/experimental/bits/simd.h (__vectorized_sizeof): With
5620         __have_neon_a32 only single-precision float works (in addition
5621         to integers).
5622
5623 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
5624
5625         * include/bits/stl_algo.h
5626         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
5627         * include/bits/stl_algobase.h: ...here.
5628         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
5629         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
5630         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
5631         Move...
5632         * include/parallel/algobase.h: ...here.
5633         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
5634         includes. Include <bits/stl_algobase.h>.
5635
5636 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5637
5638         PR libstdc++/109818
5639         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
5640         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
5641         * config.h.in: Regenerate.
5642         * configure: Regenerate.
5643         * include/c_global/cmath (float_t, double_t): Guard using new
5644         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
5645
5646 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5647
5648         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
5649         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
5650         for C99 rounding functions to here.
5651         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
5652         functions from here.
5653         * config.h.in: Regenerate.
5654         * configure: Regenerate.
5655         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
5656         of _GLIBCXX_USE_C99_MATH_TR1.
5657         * include/bits/random.tcc: Likewise.
5658         * include/c_compatibility/math.h: Likewise.
5659         * include/c_global/cmath: Likewise.
5660         * include/ext/random: Likewise.
5661         * include/ext/random.tcc: Likewise.
5662         * include/std/complex: Likewise.
5663         * testsuite/20_util/from_chars/4.cc: Likewise.
5664         * testsuite/20_util/from_chars/8.cc: Likewise.
5665         * testsuite/26_numerics/complex/proj.cc: Likewise.
5666         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
5667         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
5668         Likewise.
5669         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
5670         Likewise.
5671         * testsuite/util/testsuite_random.h: Likewise.
5672
5673 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5674
5675         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
5676         function.
5677         (vector::size(), vector::capacity()): Call _M_invariant().
5678         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
5679         * testsuite/23_containers/vector/types/1.cc: Add suppression for
5680         false positive warning (PR110060).
5681
5682 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5683
5684         PR libstdc++/109921
5685         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
5686         defined before trying to use _Float128.
5687
5688 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5689
5690         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
5691         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
5692         * configure: Regenerate.
5693
5694 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5695
5696         * include/bits/unique_lock.h: Include <bits/error_constants.h>
5697         here for std::errc constants.
5698         * include/std/mutex: Do not include <bits/error_constants.h> and
5699         <exception> here.
5700
5701 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5702
5703         * configure.ac: Replace use of -o operator for test.
5704         * configure: Regenerate.
5705
5706 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5707
5708         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
5709         noexcept to all constructors except the default constructor.
5710         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
5711         (scoped_allocator_adaptor::outer_allocator): Likewise.
5712         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
5713
5714 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5715
5716         PR libstdc++/104772
5717         * include/std/limits (numeric_limits<__float128>): Define.
5718         * testsuite/18_support/numeric_limits/128bit.cc: New test.
5719
5720 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5721
5722         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
5723         msp430 to all 16-bit targets.
5724         * configure: Regenerate.
5725
5726 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5727
5728         PR libstdc++/109921
5729         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
5730         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
5731         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
5732         binary64.
5733         (from_chars(const char*, const char*, double&, chars_format)):
5734         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
5735         (from_chars(const char*, const char*, _Float128&, chars_format))
5736         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
5737         defined, otherwise parse a long double and convert to _Float128.
5738
5739 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5740
5741         PR libstdc++/109922
5742         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
5743         Add deprecated attribute to non-standard overload.
5744         * doc/xml/manual/evolution.xml: Document deprecation.
5745         * doc/html/*: Regenerate.
5746         * testsuite/27_io/manipulators/standard/char/1.cc: Add
5747         dg-warning for expected deprecated warning.
5748         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
5749         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
5750         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
5751
5752 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
5753
5754         * testsuite/20_util/from_chars/4.cc: Skip long double test06
5755         on x86_64-vxworks.
5756         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
5757         x86_64-vxworks.
5758
5759 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
5760
5761         PR libstdc++/109822
5762         * include/experimental/bits/simd.h (to_native): Use int NTTP
5763         as specified in PTS2.
5764         (to_compatible): Likewise. Add missing tag to call mask
5765         generator ctor.
5766         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
5767         test.
5768
5769 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
5770
5771         * testsuite/experimental/simd/tests/integer_operators.cc:
5772         Compute expected value differently to avoid getting turned into
5773         a vector shift.
5774
5775 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
5776
5777         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
5778         double <-> (u)long conversion tests conditional on sizeof(long
5779         double) and sizeof(long).
5780
5781 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
5782
5783         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
5784         Negative __y is UB, so prefer signed compare.
5785
5786 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
5787
5788         * testsuite/util/testsuite_allocator.h (PointerBase): Add
5789         relational operators.
5790
5791 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
5792
5793         * testsuite/20_util/to_chars/long_double.cc: Expect execution
5794         fail on x86-vxworks.
5795
5796 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
5797
5798         PR libstdc++/109949
5799         * include/experimental/bits/simd.h (__intrinsic_type): If
5800         __ALTIVEC__ is defined, map gnu::vector_size types to their
5801         corresponding __vector T types without losing unsignedness of
5802         integer types. Also prefer long long over long.
5803         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
5804         object to the expected unsigned vector type.
5805
5806 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
5807
5808         PR libstdc++/109261
5809         * include/experimental/bits/simd.h (__intrinsic_type):
5810         Specialize __intrinsic_type<double, 8> and
5811         __intrinsic_type<double, 16> in any case, but provide the member
5812         type only with __aarch64__.
5813
5814 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
5815
5816         PR libstdc++/109261
5817         * include/experimental/bits/simd_neon.h (_S_reduce): Add
5818         constexpr and make NEON implementation conditional on
5819         not __builtin_is_constant_evaluated.
5820
5821 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
5822
5823         PR libstdc++/109261
5824         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
5825         Avoid vector builtin subscripting in constant expressions.
5826         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
5827         (const_where_expression, where_expression, where)
5828         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
5829         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
5830         internal APIs).
5831         * include/experimental/bits/simd_builtin.h (__vector_permute)
5832         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
5833         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
5834         (_MaskImplBuiltin::_S_store): Add constexpr.
5835         (_CommonImplBuiltin::_S_store_bool_array)
5836         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
5837         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
5838         constant_evaluated case.
5839         * include/experimental/bits/simd_fixed_size.h
5840         (_S_masked_load): Reword comment.
5841         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
5842         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
5843         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
5844         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
5845         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
5846         constexpr.
5847         (_SimdTuple::operator[], _M_set): Add constexpr and add
5848         constant_evaluated case.
5849         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
5850         * include/experimental/bits/simd_scalar.h: Add constexpr.
5851         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
5852         constexpr and add constant_evaluated case.
5853         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
5854         (_S_less_equal): Value-initialize to satisfy constexpr
5855         evaluation.
5856         (_MaskImplX86::_S_load): Add constant_evaluated case.
5857         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
5858         case. Value-initialize local variables.
5859         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
5860         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
5861         case.
5862         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
5863         test.
5864
5865 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
5866
5867         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
5868         __infn into #ifdef'ed block.
5869         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
5870         constants only when used.
5871         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
5872         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
5873         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
5874         Likewise.
5875         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
5876         Move totest and expect1 into #ifdef'ed block.
5877
5878 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
5879
5880         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
5881         * doc/html/manual/strings.html: Regenerate.
5882
5883 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
5884
5885         PR libstdc++/109883
5886         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
5887
5888 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
5889
5890         PR libstdc++/109883
5891         * include/c_global/cmath (atan2, fmod, pow): Move
5892         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
5893         __gnu_cxx::__bfloat16_t overloads.
5894         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
5895         Likewise.
5896         (fma): Move __gnu_cxx::__promote_3 using template after
5897         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
5898
5899 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
5900
5901         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
5902         checks for float_round_style and float_denorm_style.
5903
5904 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
5905
5906         * include/bits/c++config: Add system_header pragma.
5907
5908 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
5909
5910         * include/std/expected (expected::and_then, expected::or_else)
5911         (expected::transform, expected::transform_error): Fix exception
5912         specifications as per LWG 3877.
5913         (expected<void, E>::and_then, expected<void, E>::transform):
5914         Likewise.
5915         * testsuite/20_util/expected/lwg3877.cc: New test.
5916
5917 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
5918
5919         * include/std/type_traits: Use __bool_constant instead of
5920         integral_constant.
5921
5922 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
5923
5924         * configure: Regenerate.
5925
5926 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5927
5928         PR libstdc++/109741
5929         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
5930         * config.h.in: Regenerate.
5931         * configure: Regenerate.
5932         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
5933         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
5934         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
5935         instead of hardcoded 64.
5936
5937 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5938
5939         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
5940         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
5941         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
5942         * config.h.in: Regenerate.
5943         * configure: Regenerate.
5944         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
5945         instead of _GLIBCXX_USE_C99_FENV_TR1.
5946         * include/c_global/cfenv: Likewise.
5947         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
5948         of _GLIBCXX_USE_C99_CTYPE_TR1.
5949
5950 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5951
5952         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
5953         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
5954         <inttypes.h> features in C++11 mode and define
5955         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
5956         * config.h.in: Regenerate.
5957         * configure: Regenerate.
5958         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
5959         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
5960         of _GLIBCXX_USE_C99_STDINT_TR1.
5961         * include/c_compatibility/inttypes.h: Check
5962         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
5963         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
5964         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
5965         * include/c_compatibility/stdatomic.h: Check
5966         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
5967         * include/c_compatibility/stdint.h: Likewise.
5968         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
5969         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
5970         _GLIBCXX_USE_C99_INTTYPES_TR1 and
5971         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
5972         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
5973         instead of _GLIBCXX_USE_C99_STDINT_TR1.
5974         * include/std/atomic: Likewise.
5975         * src/c++11/cow-stdexcept.cc: Likewise.
5976         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
5977         Likewise.
5978         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
5979         Likewise.
5980
5981 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5982
5983         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
5984         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
5985         * config.h.in: Regenerate.
5986         * configure: Regenerate.
5987         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
5988         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
5989         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
5990
5991 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5992
5993         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
5994         assertion to ensure expected exception is throw.
5995
5996 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5997
5998         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
5999         printer for chrono::zoned_time for cx11 ABI and tzdb effective
6000         target.
6001
6002 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
6003
6004         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
6005         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
6006         * configure: Regenerate.
6007
6008 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
6009
6010         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
6011         to check for nan, nanf, and nanl.
6012         * configure: Regenerate.
6013
6014 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
6015
6016         * include/bits/char_traits.h (char_traits<char16_t>): Do not
6017         depend on _GLIBCXX_USE_C99_STDINT_TR1.
6018         (char_traits<char32_t>): Likewise.
6019         * include/experimental/source_location: Likewise.
6020
6021 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
6022
6023         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
6024         (atomic_int_least16_t, atomic_uint_least16_t)
6025         (atomic_int_least32_t, atomic_uint_least32_t)
6026         (atomic_int_least64_t, atomic_uint_least64_t)
6027         (atomic_int_fast16_t, atomic_uint_fast16_t)
6028         (atomic_int_fast32_t, atomic_uint_fast32_t)
6029         (atomic_int_fast64_t, atomic_uint_fast64_t)
6030         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
6031         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
6032
6033 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
6034
6035         * include/bits/algorithmfwd.h (shuffle): Do not depend on
6036         _GLIBCXX_USE_C99_STDINT_TR1.
6037         * include/bits/ranges_algo.h (shuffle): Likewise.
6038         * include/bits/stl_algo.h (shuffle): Likewise.
6039         * include/ext/random: Likewise.
6040         * include/ext/throw_allocator.h (random_condition): Likewise.
6041         * include/std/random: Likewise.
6042         * src/c++11/cow-string-inst.cc: Likewise.
6043         * src/c++11/random.cc: Likewise.
6044
6045 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
6046
6047         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
6048         _GLIBCXX_USE_C99_STDINT_TR1.
6049
6050 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
6051
6052         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
6053         on _GLIBCXX_USE_C99_STDINT_TR1.
6054
6055 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
6056
6057         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
6058         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
6059         * testsuite/experimental/string_view/typedefs.cc: Likewise.
6060
6061 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
6062
6063         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
6064         (auto_locale, auto_ferounding): New class types.
6065         (from_chars_impl): Use auto_locale and auto_ferounding.
6066
6067 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
6068
6069         PR libstdc++/109772
6070         * include/std/chrono (hh_mm_ss::__fits): Remove variable
6071         template.
6072         (hh_mm_ss::__subseconds): Remove __fits from constraints.
6073         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
6074         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
6075         hh_mm_ss<duration<int, std::pico>>.
6076
6077 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
6078
6079         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
6080         * include/bits/basic_ios.h: Add static assertion checking
6081         traits_type::value_type.
6082         * include/bits/basic_string.h: Likewise. Do not rebind
6083         allocator, and add static assertion checking its value_type.
6084         (basic_string::_Alloc_traits_impl): Remove class template.
6085         (basic_string::_S_allocate): New static member function.
6086         (basic_string::assign): Use _S_allocate.
6087         * include/bits/basic_string.tcc (basic_string::_M_create)
6088         (basic_string::reserve, basic_string::_M_replace): Likewise.
6089         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
6090         Disable for C++20 and later.
6091         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
6092         Likweise.
6093
6094 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
6095
6096         PR libstdc++/109758
6097         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
6098         and negative zero correctly.
6099         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
6100
6101 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
6102
6103         * include/bits/hashtable_policy.h
6104         (_NodeBuilder<>::_S_build): Use __node_ptr.
6105         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
6106         (_AllocNode<>): Likewise.
6107         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
6108         to call std::is_permutation in the non-unique key implementation.
6109         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
6110         _M_begin() once.
6111         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
6112         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
6113         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
6114         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
6115         const_iterator.
6116         (_Hashtable<>::find): Likewise.
6117         (_Hashtable<>::_M_emplace): Likewise.
6118         (_Hashtable<>::_M_insert_unique): Likewise.
6119
6120 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
6121
6122         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
6123         Print floating-point durations correctly.
6124         (StdChronoTimePointPrinter): Support printing only the value,
6125         not the type name. Uncomment handling for known clocks.
6126         (StdChronoZonedTimePrinter): Remove type names from output.
6127         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
6128         (StdChronoTimeZonePrinter): Add equals sign to output.
6129         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
6130
6131 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
6132
6133         * testsuite/20_util/from_chars/4.cc: Skip long double test06
6134         on aarch64-vxworks.
6135         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
6136         aarch64-vxworks.
6137
6138 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
6139
6140         * doc/xml/manual/abi.xml (abi.versioning.history): Document
6141         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
6142         * doc/html/manual/abi.html: Regenerate.
6143
6144 2023-05-04  Florian Weimer  <fweimer@redhat.com>
6145
6146         * doc/xml/manual/abi.xml (abi.versioning.history): Add
6147         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
6148         libgcc_s.
6149
6150 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
6151
6152         * src/c++17/floating_from_chars.cc
6153         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
6154         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
6155         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
6156         _ZSt8to_charsPcS_u9__ieee128.
6157         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
6158         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
6159         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
6160         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
6161         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
6162
6163 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
6164
6165         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
6166         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
6167         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
6168         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
6169         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
6170         versions.
6171         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
6172         file.
6173
6174 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
6175             Jonathan Wakely  <jwakely@redhat.com>
6176
6177         PR libstdc++/109703
6178         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
6179         Initialize _M_string_length.
6180
6181 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
6182
6183         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
6184         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
6185         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
6186         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
6187         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
6188         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
6189         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
6190         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
6191
6192 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
6193
6194         PR libstdc++/109694
6195         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
6196         -Wattribute-alias.
6197
6198 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
6199
6200         * include/bits/random.h (gamma_distribution): Add to the right
6201         doxygen group.
6202         (discrete_distribution, piecewise_constant_distribution)
6203         (piecewise_linear_distribution): Create a new doxygen group and
6204         fix the incomplete doxygen comments.
6205         * include/bits/uniform_int_dist.h (uniform_int_distribution):
6206         Add to doxygen group.
6207
6208 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
6209
6210         * include/bits/uses_allocator.h: Add missing @file comment.
6211         * include/bits/regex.tcc: Remove stray doxygen comments.
6212         * include/experimental/memory_resource: Likewise.
6213         * include/std/bit: Tweak doxygen @cond comments.
6214         * include/std/expected: Likewise.
6215         * include/std/numbers: Likewise.
6216
6217 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
6218
6219         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
6220         from header paths.
6221
6222 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
6223
6224         * include/bits/move.h: Simplify opening/closing namespace std.
6225
6226 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
6227
6228         PR libstdc++/108969
6229         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
6230         _ZSt21ios_base_library_initv.
6231         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
6232         symver and make it the latestp.
6233         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
6234         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
6235         * include/std/iostream: If init_priority attribute is supported
6236         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
6237         symbol into the object.
6238         * configure: Regenerated.
6239
6240 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
6241
6242         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
6243         * include/std/format: Likewise.
6244
6245 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
6246
6247         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
6248         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
6249
6250 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
6251
6252         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
6253         HTML docs.
6254         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
6255         from doxygen docs.
6256         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
6257         Likewise.
6258         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
6259         Likewise.
6260         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
6261         Likewise.
6262         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
6263         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
6264         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
6265         (_DEFINE_BINARY_OPERATOR): Likewise.
6266
6267 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
6268
6269         * include/bits/memory_resource.h: Improve doxygen comments.
6270         * include/std/memory_resource: Likewise.
6271
6272 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
6273
6274         PR libstdc++/40380
6275         * include/bits/basic_string.h: Improve doxygen comments.
6276         * include/bits/cow_string.h: Likewise.
6277         * include/bits/forward_list.h: Likewise.
6278         * include/bits/fs_dir.h: Likewise.
6279         * include/bits/fs_path.h: Likewise.
6280         * include/bits/quoted_string.h: Likewise.
6281         * include/bits/stl_bvector.h: Likewise.
6282         * include/bits/stl_map.h: Likewise.
6283         * include/bits/stl_multimap.h: Likewise.
6284         * include/bits/stl_multiset.h: Likewise.
6285         * include/bits/stl_set.h: Likewise.
6286         * include/bits/stl_vector.h: Likewise.
6287         * include/bits/unordered_map.h: Likewise.
6288         * include/bits/unordered_set.h: Likewise.
6289         * include/std/filesystem: Likewise.
6290         * include/std/iomanip: Likewise.
6291
6292 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
6293
6294         PR libstdc++/105081
6295         * src/c++11/random.cc (__throw_syserr): New function.
6296         (random_device::_M_init, random_device::_M_init_pretr1): Use new
6297         function for bad tokens.
6298         (random_device::_M_getval): Use new function for read errors.
6299         * testsuite/util/testsuite_random.h (random_device_available):
6300         Change catch handler to use std::system_error.
6301
6302 2023-04-24  Patrick Palka  <ppalka@redhat.com>
6303
6304         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
6305         Fix propagation of sign bit.
6306         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
6307         non-standard 'signed typedef-name'.  Add some compile-time tests
6308         for right-shifting a negative __max_diff_type value by more than
6309         one.
6310
6311 2023-04-19  Patrick Palka  <ppalka@redhat.com>
6312             Jonathan Wakely  <jwakely@redhat.com>
6313
6314         PR c++/100157
6315         * include/bits/utility.h (_Nth_type): Conditionally define in
6316         terms of __type_pack_element if available.
6317         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
6318         additional errors from the new built-in.
6319
6320 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
6321
6322         Revert:
6323         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
6324
6325         PR libstdc++/108969
6326         * src/Makefile.am: Move globals_io.cc to here.
6327         * src/Makefile.in: Regenerate.
6328         * src/c++98/Makefile.am: Remove globals_io.cc from here.
6329         * src/c++98/Makefile.in: Regenerate.
6330         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
6331         symbol name and then export with GLIBCXX_3.4.31 symver.
6332         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
6333         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
6334         Regenerate.
6335         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
6336         Regenerate.
6337         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
6338         Regenerate.
6339         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
6340         Regenerate.
6341         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
6342         Regenerate.
6343         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
6344         Regenerate.
6345         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
6346         Regenerate.
6347         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
6348         Regenerate.
6349         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
6350
6351 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
6352
6353         Revert:
6354         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
6355
6356         PR libstdc++/108969
6357         * config/abi/pre/gnu.ver: Fix preprocessor condition.
6358
6359 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
6360
6361         * doc/xml/manual/extensions.xml: Fix example to declare and
6362         qualify std::free, and use NULL instead of 0.
6363         * doc/html/manual/ext_demangling.html: Regenerate.
6364         * libsupc++/cxxabi.h: Adjust doxygen comments.
6365
6366 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
6367
6368         PR libstdc++/108969
6369         * config/abi/pre/gnu.ver: Fix preprocessor condition.
6370
6371 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
6372
6373         PR libstdc++/108969
6374         * src/Makefile.am: Move globals_io.cc to here.
6375         * src/Makefile.in: Regenerate.
6376         * src/c++98/Makefile.am: Remove globals_io.cc from here.
6377         * src/c++98/Makefile.in: Regenerate.
6378         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
6379         symbol name and then export with GLIBCXX_3.4.31 symver.
6380         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
6381         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
6382         Regenerate.
6383         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
6384         Regenerate.
6385         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
6386         Regenerate.
6387         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
6388         Regenerate.
6389         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
6390         Regenerate.
6391         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
6392         Regenerate.
6393         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
6394         Regenerate.
6395         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
6396         Regenerate.
6397         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
6398
6399 2023-04-18  Patrick Palka  <ppalka@redhat.com>
6400
6401         PR libstdc++/108827
6402         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
6403         for C++23.
6404         * include/std/ranges (range_adaptor_closure): Define for C++23.
6405         * include/std/version (__cpp_lib_ranges): Bump value for
6406         C++23.
6407         * testsuite/std/ranges/version_c++23.cc: Bump expected value
6408         of __cpp_lib_ranges.
6409         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
6410
6411 2023-04-18  Patrick Palka  <ppalka@redhat.com>
6412
6413         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
6414         Define for C++23.
6415         (__cpp_lib_ranges_iota): Likewise.
6416         (__cpp_lib_ranges_find_last): Likewise.
6417         (__cpp_lib_fold): Rename to ...
6418         (__cpp_lib_ranges_fold): ... this.
6419         * include/std/version: As above.
6420         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
6421         renaming __cpp_lib_fold.
6422         * testsuite/std/ranges/version_c++23.cc: Verify values
6423         of the above feature-test macros.
6424
6425 2023-04-18  Patrick Palka  <ppalka@redhat.com>
6426
6427         PR libstdc++/109525
6428         * include/std/ranges (views::_AsConst::operator()): Add
6429         missing const to constant_range test.
6430         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
6431         Improve formatting.  Adjust expected type of v2.
6432         (test03): New test.
6433
6434 2023-04-14  Patrick Palka  <ppalka@redhat.com>
6435
6436         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
6437         (const_sentinel_t): Likewise.
6438         (range_const_reference_t): Likewise.
6439         (constant_range): Likewise.
6440         (__cust_access::__possibly_const_range): Likewise, replacing ...
6441         (__cust_access::__as_const): ... this.
6442         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
6443         (__cust_access::_CEnd::operator()): Likewise.
6444         (__cust_access::_CRBegin::operator()): Likewise.
6445         (__cust_access::_CREnd::operator()): Likewise.
6446         (__cust_access::_CData::operator()): Likewise.
6447         * include/bits/ranges_util.h (ranges::__detail::__different_from):
6448         Make it an alias of std::__detail::__different_from.
6449         (view_interface::cbegin): Define for C++23.
6450         (view_interface::cend): Likewise.
6451         * include/bits/stl_iterator.h (__detail::__different_from): Define.
6452         (iter_const_reference_t): Define for C++23.
6453         (__detail::__constant_iterator): Likewise.
6454         (__detail::__is_const_iterator): Likewise.
6455         (__detail::__not_a_const_iterator): Likewise.
6456         (__detail::__iter_const_rvalue_reference_t): Likewise.
6457         (__detail::__basic_const_iter_cat):: Likewise.
6458         (const_iterator): Likewise.
6459         (__detail::__const_sentinel): Likewise.
6460         (const_sentinel): Likewise.
6461         (basic_const_iterator): Likewise.
6462         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
6463         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
6464         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
6465         Likewise.
6466         (make_const_iterator): Define for C++23.
6467         (make_const_sentinel): Likewise.
6468         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
6469         (as_const_view): Likewise.
6470         (enable_borrowed_range<as_const_view>): Likewise.
6471         (views::__detail::__is_ref_view): Likewise.
6472         (views::__detail::__can_is_const_view): Likewise.
6473         (views::_AsConst, views::as_const): Likewise.
6474         * include/std/span (span::const_iterator): Likewise.
6475         (span::const_reverse_iterator): Likewise.
6476         (span::cbegin): Likewise.
6477         (span::cend): Likewise.
6478         (span::crbegin): Likewise.
6479         (span::crend): Likewise.
6480         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
6481         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
6482         behave independently of C++20 vs C++23.
6483         * testsuite/std/ranges/version_c++23.cc: Verify value of
6484         __cpp_lib_ranges_as_const macro.
6485         * testsuite/24_iterators/const_iterator/1.cc: New test.
6486         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
6487
6488 2023-04-14  Patrick Palka  <ppalka@redhat.com>
6489
6490         * include/bits/ranges_base.h (__cust_access::__as_const)
6491         (__cust_access::_CBegin, __cust::cbegin)
6492         (__cust_access::_CEnd, __cust::cend)
6493         (__cust_access::_CRBegin, __cust::crbegin)
6494         (__cust_access::_CREnd, __cust::crend)
6495         (__cust_access::_CData, __cust::cdata): Move down definitions to
6496         shortly after the definition of input_range.
6497
6498 2023-04-14  Patrick Palka  <ppalka@redhat.com>
6499
6500         * include/bits/ranges_algo.h: Include <optional> for C++23.
6501         (__cpp_lib_fold): Define for C++23.
6502         (in_value_result): Likewise.
6503         (__detail::__flipped): Likewise.
6504         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
6505         (__detail::__indirectly_binary_left_foldable): Likewise.
6506         (___detail:__indirectly_binary_right_foldable): Likewise.
6507         (fold_left_with_iter_result): Likewise.
6508         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
6509         (__fold_left_fn, fold_left): Likewise.
6510         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
6511         Likewise.
6512         (__fold_left_first_fn, fold_left_first): Likewise.
6513         (__fold_right_fn, fold_right): Likewise.
6514         (__fold_right_last_fn, fold_right_last): Likewise.
6515         * include/std/version (__cpp_lib_fold): Likewise.
6516         * testsuite/25_algorithms/fold_left/1.cc: New test.
6517         * testsuite/25_algorithms/fold_right/1.cc: New test.
6518
6519 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
6520
6521         * include/std/format (formatter): Add comment to deleted default
6522         constructor of primary template.
6523         (_Checking_scanner): Add static_assert.
6524
6525 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
6526
6527         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
6528         * doc/html/*: Regenerate.
6529
6530 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
6531
6532         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
6533         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
6534         namespace to avoid clashing with libc struct.
6535         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
6536         Likewise.
6537         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
6538         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
6539         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
6540         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
6541         * testsuite/experimental/synchronized_value.cc: Require gthreads
6542         and add missing option for pthreads targets.
6543
6544 2023-04-12  Patrick Palka  <ppalka@redhat.com>
6545
6546         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
6547         for C++23.
6548         (__detail::__range_with_movable_reference): Likewise.
6549         (enumerate_view): Likewise.
6550         (enumerate_view::_Iterator): Likewise.
6551         (enumerate_view::_Sentinel): Likewise.
6552         (views::__detail::__can_enumerate_view): Likewise.
6553         (views::_Enumerate, views::enumerate): Likewise.
6554         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
6555         * testsuite/std/ranges/version_c++23.cc: Verify value of
6556         __cpp_lib_ranges_enumerate.
6557         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
6558
6559 2023-04-12  Patrick Palka  <ppalka@redhat.com>
6560
6561         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
6562         Propagate _M_trailing_empty in the const-converting constructor
6563         as per LWG 3904.
6564         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
6565         assertion.
6566         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
6567
6568 2023-04-12  Patrick Palka  <ppalka@redhat.com>
6569
6570         * src/c++17/floating_from_chars.cc: Include <algorithm>,
6571         <iterator>, <limits> and <cstdint>.
6572
6573 2023-04-12  Patrick Palka  <ppalka@redhat.com>
6574
6575         PR libstdc++/108291
6576         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
6577         parameter types of the lambda wrapper passed to adjacent_find.
6578         (chunk_by_view::_M_find_prev): Likewise.
6579         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
6580         New tests.
6581
6582 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
6583
6584         PR libstdc++/109482
6585         * include/experimental/internet (basic_endpoint::basic_endpoint()):
6586         Ensure that the required union members are active. Only define
6587         as constexpr for C++20 and later.
6588         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
6589         Likewise.
6590         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
6591         check constexpr default constructor for C++20 and later.
6592         * testsuite/experimental/net/internet/endpoint/extensible.cc:
6593         Likewise.
6594
6595 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
6596
6597         * src/c++20/tzdata.zi: Import new file from 2023c release.
6598
6599 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
6600
6601         * include/precompiled/stdc++.h (C++17): Don't double-include
6602         <charconv>, once with wrong conditions.
6603         * testsuite/18_support/96817.cc: Require hosted.
6604         * testsuite/18_support/bad_exception/59392.cc: Ditto.
6605         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
6606         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
6607         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
6608         Ditto.
6609
6610 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
6611
6612         * include/bits/c++config: When __STDC_HOSTED__ is zero,
6613         disable _GLIBCXX_DEBUG and, if it was set, enable
6614         _GLIBCXX_ASSERTIONS.
6615         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
6616         Include <bits/c++config.h> when determining whether debug is
6617         set, in order to inherit the logic from above
6618
6619 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
6620
6621         * testsuite/17_intro/versionconflict.cc: New test.
6622         * include/std/version: Allow disabling the system_header pragma
6623         via _GLIBCXX_TESTING_SYSHDR.
6624
6625 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
6626
6627         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
6628         Synchronize the definition block with...
6629         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
6630         ... this one here.  Also define the 202202L value, rather than
6631         leaving it up to purely unique_ptr.h, so that the value is
6632         synchronized across all headers.
6633         (__gnu_debug::_Safe_iterator_base): Move into new conditional
6634         block.
6635         * include/std/memory (__cpp_lib_atomic_value_initialization):
6636         Define on freestanding under the same conditions as in
6637         atomic_base.h.
6638         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
6639         Also define on freestanding.
6640         (__cpp_lib_to_chars): Ditto.
6641         (__cpp_lib_gcd): Ditto.
6642         (__cpp_lib_gcd_lcm): Ditto.
6643         (__cpp_lib_raw_memory_algorithms): Ditto.
6644         (__cpp_lib_array_constexpr): Ditto.
6645         (__cpp_lib_nonmember_container_access): Ditto.
6646         (__cpp_lib_clamp): Ditto.
6647         (__cpp_lib_constexpr_char_traits): Ditto.
6648         (__cpp_lib_constexpr_string): Ditto.
6649         (__cpp_lib_sample): Ditto.
6650         (__cpp_lib_lcm): Ditto.
6651         (__cpp_lib_constexpr_iterator): Ditto.
6652         (__cpp_lib_constexpr_char_traits): Ditto.
6653         (__cpp_lib_interpolate): Ditto.
6654         (__cpp_lib_constexpr_utility): Ditto.
6655         (__cpp_lib_shift): Ditto.
6656         (__cpp_lib_ranges): Ditto.
6657         (__cpp_lib_move_iterator_concept): Ditto.
6658         (__cpp_lib_constexpr_numeric): Ditto.
6659         (__cpp_lib_constexpr_functional): Ditto.
6660         (__cpp_lib_constexpr_algorithms): Ditto.
6661         (__cpp_lib_constexpr_tuple): Ditto.
6662         (__cpp_lib_constexpr_memory): Ditto.
6663
6664 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
6665
6666         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
6667         timeout factor on hppa*-*-*.
6668
6669 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
6670
6671         * include/bits/regex.h (sub_match::swap): New function.
6672         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
6673
6674 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
6675
6676         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
6677         example program.
6678         * doc/html/manual/ext_demangling.html: Regenerate.
6679
6680 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
6681
6682         PR tree-optimization/107087
6683         * include/bits/cow_string.h (basic_string::size()): Add
6684         optimizer hint that _S_empty_rep()._M_length is always zero.
6685         (basic_string::length()): Call size().
6686
6687 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
6688
6689         PR libstdc++/109339
6690         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
6691         Add attribute access with access-mode 'none'.
6692         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
6693
6694 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
6695
6696         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
6697         Revert change from member function to data member. Fix for
6698         constant evaluation by detecting which union member is active.
6699         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
6700         flag.
6701
6702 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
6703
6704         PR libstdc++/109242
6705         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
6706         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
6707
6708 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
6709
6710         * include/experimental/internet (ip::make_address): Implement
6711         missing overload.
6712         (ip::address_v4::broadcast()): Avoid undefined shift.
6713         (ip::basic_endpoint): Fix member functions for constexpr.
6714         (ip::basic_endpoint::_M_is_v6): Replace member function with
6715         data member, adjust member functions using it.
6716         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
6717         content.
6718         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
6719         constexpr checks to work in C++14.
6720         * testsuite/experimental/net/internet/address/v4/creation.cc:
6721         Likewise.
6722         * testsuite/experimental/net/internet/endpoint/cons.cc:
6723         Likewise.
6724         * testsuite/experimental/net/internet/network/v4/cons.cc:
6725         Likewise.
6726         * testsuite/experimental/net/internet/network/v4/members.cc:
6727         Likewise.
6728         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
6729
6730 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
6731
6732         * include/std/expected (expected::value() &): Use const lvalue
6733         for unex member passed to bad_expected_access constructor, as
6734         per LWG 3843.
6735
6736 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
6737
6738         PR libstdc++/109340
6739         * include/std/expected (expected::transform): Use
6740         std::remove_cv_t instead of std::remove_cvref_t.
6741         (expected::transform_error): Likewise.
6742         (expected<cv void, E>::transform): Likewise.
6743         (expected<cv void, E>::transform_error): Likewise.
6744         * include/std/optional (transform): Use std::remove_cv_t.
6745         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
6746
6747 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
6748
6749         * include/std/optional (optional): Adjust static assertion to
6750         reject arrays and functions as well as references.
6751         * testsuite/20_util/optional/requirements_neg.cc: New test.
6752
6753 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
6754
6755         PR libstdc++/103387
6756         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
6757         std::use_facet instead of cached _M_num_get facet.
6758         (istream::operator>>(short&)): Likewise.
6759         (istream::operator>>(int&)): Likewise.
6760         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
6761         std::use_facet instead of cached _M_num_put facet.
6762
6763 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
6764
6765         * include/bits/char_traits.h (char_traits::copy): Return without
6766         using memcpy if n==0.
6767         (char_traits::assign): Likewise for memset.
6768
6769 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
6770
6771         PR libstdc++/109299
6772         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
6773         hint for compiler that local strings fit in the local buffer.
6774
6775 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
6776
6777         PR libstdc++/109288
6778         * include/std/chrono (__detail::__get_leap_second_info): Update
6779         expiry date of hardcoded leapseconds list.
6780         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
6781         Likewise.
6782         * src/c++20/tzdata.zi: Import new file from 2023a release.
6783         * testsuite/std/time/time_zone/get_info_local.cc: Only check
6784         transitions for Egypt up to 2014.
6785
6786 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
6787
6788         * include/experimental/bits/simd.h (is_simd_flag_type): New.
6789         (_IsSimdFlagType): New.
6790         (copy_from, copy_to, load ctors): Constrain _Flags using
6791         _IsSimdFlagType.
6792
6793 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
6794
6795         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
6796         _Base::_S_divides if the optimized _S_divides function is hidden
6797         via the preprocessor.
6798
6799 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
6800
6801         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
6802         warning if size_t is not unsigned long.
6803
6804 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6805
6806         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
6807         Add overload, as per LWG 3893.
6808         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
6809         Check assignment from nullptr.
6810
6811 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6812
6813         * include/std/format (formatter<const charT[N], charT>): Do not
6814         define partial speclialization, as per LWG 3833.
6815         * testsuite/std/format/formatter/requirements.cc: Check it.
6816
6817 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6818
6819         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
6820         as per LWG 3792.
6821         * testsuite/20_util/exchange/constexpr.cc: Check for it.
6822
6823 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6824
6825         * include/std/version (__cpp_lib_format): Define.
6826         * testsuite/std/format/functions/format.cc: Check it.
6827
6828 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6829
6830         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
6831         Pass rvalues to the callback, as now allowed by LWG 3645.
6832         Enforce preconditions on the return value.
6833         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
6834         Adjust.
6835
6836 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6837
6838         * include/std/format: Add a comment noting that the resolution
6839         of LWG 3720 has been applied..
6840
6841 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6842
6843         * include/bits/regex.h (match_results): Add allocator-extended
6844         copy and move constructors, as per LWG 2195.
6845         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
6846
6847 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6848
6849         * include/bits/stream_iterator.h (istream_iterator): Add
6850         constexpr to copy constructor, as per LWG 3600.
6851         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
6852         Check copy construction.
6853
6854 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
6855
6856         * include/experimental/bits/simd_x86.h
6857         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
6858         with __RECIPROCAL_MATH__.
6859
6860 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
6861
6862         * include/experimental/bits/simd_detail.h: Don't define
6863         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
6864         * include/experimental/bits/simd_x86.h (_S_divides): Remove
6865         check for __clang__.
6866
6867 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
6868
6869         * include/experimental/bits/simd_detail.h: Don't declare the
6870         simd API as constexpr with Clang.
6871         * include/experimental/bits/simd_x86.h (__movm): New.
6872         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
6873         and ?:.
6874         (_SimdImplX86::_S_masked_unary): Clang does not implement the
6875         same builtins. Implement the function using __movm, ?:, and -
6876         operators on vector_size types instead.
6877
6878 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
6879
6880         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
6881         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
6882
6883 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
6884
6885         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
6886         formatting.
6887
6888 2023-03-20  Marek Polacek  <polacek@redhat.com>
6889
6890         PR c++/109159
6891         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
6892         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
6893         * testsuite/23_containers/span/explicit.cc: Likewise.
6894
6895 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
6896
6897         PR libstdc++/109182
6898         * include/std/expected (expected<void>::expected(in_place_t)):
6899         Remove template-head.
6900
6901 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
6902
6903         PR libstdc++/109165
6904         * testsuite/18_support/coroutines/hash.cc: Use const object
6905         in second call.
6906
6907 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
6908
6909         PR libstdc++/109165
6910         * include/std/coroutine (hash<>::operator()): Add const.
6911         * testsuite/18_support/coroutines/hash.cc: New test.
6912
6913 2023-03-14  Patrick Palka  <ppalka@redhat.com>
6914
6915         PR libstdc++/109111
6916         * include/std/ranges (repeat_view): Remove redundant parentheses
6917         in requires-clause.
6918         (repeat_view::_Iterator): Correct the requires-clause.
6919
6920 2023-03-14  Patrick Palka  <ppalka@redhat.com>
6921
6922         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
6923         Define.
6924         (__cpp_lib_move_iterator_concept): Define for C++20.
6925         (move_iterator::iterator_concept): Strengthen as per P2520R0.
6926         * include/std/version (__cpp_lib_move_iterator_concept): Define
6927         for C++20.
6928         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
6929
6930 2023-03-14  Patrick Palka  <ppalka@redhat.com>
6931
6932         * include/bits/ranges_util.h (view_interface::empty): Add
6933         preferred overloads that use ranges::size when the range is
6934         sized as per LWG 3715.
6935         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
6936
6937 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
6938
6939         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
6940         Only define for C++17 and later.
6941
6942 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
6943
6944         * src/Makefile.am: Add comment about linker script fragments.
6945         * src/Makefile.in: Regenerate.
6946
6947 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
6948
6949         PR libstdc++/62196
6950         * include/bits/mask_array.h (mask_array): Add assertions to
6951         assignment operators.
6952         * include/std/valarray (valarray::operator[](valarray<bool>)):
6953         Add assertions.
6954         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
6955         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
6956         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
6957         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
6958         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
6959         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
6960         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
6961         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
6962         * testsuite/26_numerics/valarray/mask.cc: New test.
6963
6964 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
6965
6966         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
6967         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
6968
6969 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
6970
6971         * doc/Makefile.am: Add comment referring to documentation.
6972         * doc/Makefile.in: Regenerate.
6973
6974 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
6975
6976         * doc/html/*: Regenerate.
6977
6978 2023-03-13  Jonny Grant  <jg@jguk.org>
6979
6980         * doc/xml/faq.xml: Update copyright year.
6981
6982 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
6983
6984         * include/bits/allocator.h: Fix typo in comment.
6985
6986 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
6987
6988         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
6989         if it isn't mangled as DF16b but u6__bf16.
6990
6991 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
6992
6993         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
6994         to https.
6995         * doc/html/manual/documentation_hacking.html: Regenerate.
6996
6997 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
6998
6999         PR libstdc++/109064
7000         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
7001         Remove self-recursion in __init__. Add missing _supports.
7002         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
7003         and unique().
7004
7005 2023-03-09  Patrick Palka  <ppalka@redhat.com>
7006
7007         * include/std/ranges
7008         (cartesian_product_view::_Iterator::_Iterator): Remove
7009         constraint on default constructor as per LWG 3849.
7010         (cartesian_product_view::_Iterator::_M_prev): Adjust position
7011         of _Nm > 0 test as per LWG 3820.
7012         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
7013         checking only on sized cartesian products.
7014         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
7015
7016 2023-03-09  Patrick Palka  <ppalka@redhat.com>
7017
7018         PR libstdc++/109024
7019         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
7020         LWG 3796.
7021         (repeat_view::_M_pred): Likewise.
7022         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
7023         * testsuite/std/ranges/repeat/1.cc (test05): New test.
7024
7025 2023-03-09  Patrick Palka  <ppalka@redhat.com>
7026
7027         PR libstdc++/108362
7028         * include/std/ranges (__detail::__can_single_view): New concept.
7029         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
7030         end of the function declarator.
7031         (__detail::__can_iota_view): New concept.
7032         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
7033         end of the function declarator.
7034         (__detail::__can_istream_view): New concept.
7035         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
7036         end of the function declarator.
7037         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
7038         * testsuite/std/ranges/istream_view.cc (test08): New test.
7039         * testsuite/std/ranges/single_view.cc (test07): New test.
7040
7041 2023-03-09  Patrick Palka  <ppalka@redhat.com>
7042
7043         PR libstdc++/107572
7044         * include/std/ranges (cartesian_product_view::end): When
7045         building the tuple of iterators, avoid calling ranges::begin on
7046         the first range if __empty_tail is false.
7047         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
7048
7049 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
7050
7051         PR libstdc++/108882
7052         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
7053         patterns.
7054
7055 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
7056
7057         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
7058         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
7059         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
7060         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
7061         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
7062
7063 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
7064
7065         PR libstdc++/108882
7066         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
7067         not match symbols in namespace std::__gnu_cxx11_ieee128.
7068         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
7069         std::__gnu_cxx11_ieee128::money_{get,put}.
7070
7071 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
7072
7073         * libsupc++/eh_personality.cc: Fix spelling in comment.
7074
7075 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
7076
7077         * testsuite/30_threads/async/async.cc (test04): Initialize
7078         steady_start, renamed from steady_begin, next to slow_start.
7079         Increase tolerance for final wait.
7080
7081 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
7082
7083         * testsuite/libstdc++-prettyprinters/80276.cc: Add
7084         std::string to debug info.
7085         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
7086
7087 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
7088
7089         PR libstdc++/104852
7090         PR libstdc++/95989
7091         PR libstdc++/52590
7092         * include/bits/std_thread.h (thread::_M_thread_deps): New
7093         static implicitly-inline member function.
7094         (std::thread template ctor): Pass it to _M_start_thread.
7095         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
7096         parameter, force it live on entry.
7097
7098 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
7099
7100         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
7101         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
7102         Likewise.
7103         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
7104         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
7105         Likewise.
7106
7107 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
7108
7109         * include/bits/cow_string.h: Fix typo in comment.
7110
7111 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
7112
7113         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
7114         current time zone cannot be determined.
7115         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
7116         HAVE_TZDB macro and test all members unconditionally.
7117
7118 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
7119
7120         PR libstdc++/108952
7121         * include/bits/uses_allocator_args.h
7122         (uses_allocator_construction_args): Implement LWG 3527.
7123         * testsuite/20_util/pair/astuple/get-2.cc: New test.
7124         * testsuite/20_util/scoped_allocator/108952.cc: New test.
7125         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
7126
7127 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
7128
7129         PR libstdc++/108846
7130         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
7131         Add __assign_one static member function.
7132         (__copy_move<true, false, RA>): Likewise.
7133         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
7134         value.
7135         (__copy_move_backward<IsMove, true, RA>): Likewise.
7136         * testsuite/25_algorithms/copy/108846.cc: New test.
7137         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
7138         * testsuite/25_algorithms/copy_n/108846.cc: New test.
7139         * testsuite/25_algorithms/move/108846.cc: New test.
7140         * testsuite/25_algorithms/move_backward/108846.cc: New test.
7141
7142 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
7143
7144         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
7145         attributes.
7146
7147 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
7148
7149         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
7150         caveat to comment.
7151         * include/bits/basic_string.h (resize_and_overwrite): Add
7152         doxygen comment.
7153
7154 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
7155
7156         * include/experimental/bits/simd.h: Line breaks and indenting
7157         fixed to follow the libstdc++ standard.
7158         * include/experimental/bits/simd_builtin.h: Likewise.
7159         * include/experimental/bits/simd_fixed_size.h: Likewise.
7160         * include/experimental/bits/simd_neon.h: Likewise.
7161         * include/experimental/bits/simd_ppc.h: Likewise.
7162         * include/experimental/bits/simd_scalar.h: Likewise.
7163         * include/experimental/bits/simd_x86.h: Likewise.
7164
7165 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
7166
7167         PR libstdc++/108030
7168         * include/experimental/bits/simd_fixed_size.h
7169         (_SimdImplFixedSize::_S_broadcast): Replace inline with
7170         _GLIBCXX_SIMD_INTRINSIC.
7171         (_SimdImplFixedSize::_S_generate): Likewise.
7172         (_SimdImplFixedSize::_S_load): Likewise.
7173         (_SimdImplFixedSize::_S_masked_load): Likewise.
7174         (_SimdImplFixedSize::_S_store): Likewise.
7175         (_SimdImplFixedSize::_S_masked_store): Likewise.
7176         (_SimdImplFixedSize::_S_min): Likewise.
7177         (_SimdImplFixedSize::_S_max): Likewise.
7178         (_SimdImplFixedSize::_S_complement): Likewise.
7179         (_SimdImplFixedSize::_S_unary_minus): Likewise.
7180         (_SimdImplFixedSize::_S_plus): Likewise.
7181         (_SimdImplFixedSize::_S_minus): Likewise.
7182         (_SimdImplFixedSize::_S_multiplies): Likewise.
7183         (_SimdImplFixedSize::_S_divides): Likewise.
7184         (_SimdImplFixedSize::_S_modulus): Likewise.
7185         (_SimdImplFixedSize::_S_bit_and): Likewise.
7186         (_SimdImplFixedSize::_S_bit_or): Likewise.
7187         (_SimdImplFixedSize::_S_bit_xor): Likewise.
7188         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
7189         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
7190         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
7191         explicit about not always-inline, yet).
7192         (_SimdImplFixedSize::_S_isinf): Likewise.
7193         (_SimdImplFixedSize::_S_isfinite): Likewise.
7194         (_SimdImplFixedSize::_S_isnan): Likewise.
7195         (_SimdImplFixedSize::_S_isnormal): Likewise.
7196         (_SimdImplFixedSize::_S_signbit): Likewise.
7197
7198 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
7199
7200         PR libstdc++/108856
7201         * include/experimental/bits/simd_builtin.h
7202         (_SimdImplBuiltin::_S_masked_unary): More efficient
7203         implementation of masked inc-/decrement for integers and floats
7204         without AVX2.
7205         * include/experimental/bits/simd_x86.h
7206         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
7207         builtins for masked inc-/decrement.
7208
7209 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
7210
7211         * include/experimental/executor (executor): Constrain template
7212         constructors.
7213
7214 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
7215
7216         * include/experimental/internet (basic_endpoint): Add missing
7217         constexpr to comparison operators.
7218         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
7219
7220 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
7221
7222         * include/experimental/internet (network_v4::netmask()): Avoid
7223         undefined shift.
7224         (network_v4::broadcast()): Optimize and fix for targets with
7225         uint_least32_t wider than 32 bits.
7226         (network_v4::to_string(const Allocator&)): Fix for custom
7227         allocators and optimize using to_chars.
7228         (operator==(const network_v4&, const network_v4&)): Add missing
7229         constexpr.
7230         (operator==(const network_v6&, const network_v6&)): Likewise.
7231         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
7232         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
7233
7234 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
7235
7236         * include/experimental/internet (address_4(const bytes_type&)):
7237         Use __builtin_bit_cast if available, otherwise convert to
7238         network byte order.
7239         (address_v4::to_bytes()): Likewise, but convert from network
7240         byte order.
7241         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
7242         incorrect tests. Check for constexpr too.
7243         * testsuite/experimental/net/internet/address/v4/creation.cc:
7244         Likewise.
7245         * testsuite/experimental/net/internet/address/v4/members.cc:
7246         Check that bytes_type is a standard-layout type.
7247
7248 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
7249
7250         * include/experimental/internet (address_v4::to_string):
7251         Optimize.
7252         * testsuite/experimental/net/internet/address/v4/members.cc:
7253         Check more addresses.
7254
7255 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
7256
7257         * include/ext/aligned_buffer.h (__aligned_buffer): Add
7258         diagnostic pragmas.
7259
7260 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
7261
7262         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
7263         before dg-do.
7264
7265 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
7266
7267         * testsuite/experimental/simd/tests/reductions.cc: Introduce
7268         max_distance as the type-dependent max error.
7269
7270 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
7271
7272         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
7273         int. The actual range of these indexes is very small.
7274
7275 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
7276
7277         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
7278         (_S_bit_shift_right): Declare constexpr. The implementation was
7279         already expecting constexpr evaluation.
7280
7281 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
7282
7283         PR libstdc++/108030
7284         * include/experimental/bits/simd_detail.h
7285         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
7286         __clang__.
7287
7288 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
7289
7290         PR libstdc++/108030
7291         * include/experimental/bits/simd.h (__vector_broadcast):
7292         Implement via __vector_broadcast_impl instead of
7293         __call_with_n_evaluations + 2 lambdas.
7294         (__vector_broadcast_impl): New.
7295
7296 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
7297
7298         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
7299         Avoid destruction of the mutex pool.
7300
7301 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
7302
7303         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
7304         on vxworks.
7305         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
7306         Likewise.
7307
7308 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
7309
7310         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
7311         kernel mode.
7312
7313 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
7314
7315         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
7316
7317 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
7318
7319         * include/experimental/bits/simd.h (__extract_part, split):
7320         Use reserved name for template parameter.
7321
7322 2023-02-20  Andreas Schwab  <schwab@suse.de>
7323
7324         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
7325
7326 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
7327
7328         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
7329         * doc/html/faq.html: Regenerate.
7330
7331 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
7332
7333         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
7334         between scalars requires the __bit_cast helper function instead
7335         of simd_bit_cast.
7336
7337 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
7338
7339         * include/experimental/bits/simd_x86.h
7340         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
7341         (_SimdImplX86::_S_less_equal): Do not call
7342         __builtin_is_constant_evaluated in constexpr-if.
7343
7344 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
7345
7346         * testsuite/experimental/simd/tests/bits/verify.h
7347         (verify::verify): Use %zx for size_t in format string.
7348
7349 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
7350
7351         * testsuite/experimental/simd/generate_makefile.sh: Generate and
7352         pre-compile pch.h, which includes all headers that do not depend
7353         on command-line macros.
7354         * testsuite/experimental/simd/tests/bits/main.h: New file.
7355         (iterate_abis, main): Moved from verify.h.
7356         * testsuite/experimental/simd/tests/bits/verify.h
7357         (iterate_abis, main): Moved to main.h.
7358         * testsuite/experimental/simd/tests/bits/conversions.h: Add
7359         include guard.
7360         (genHalfBits): Simplify.
7361         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
7362         guard.
7363         (make_alternating_mask): Moved from mask_loadstore.
7364         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
7365         include guard.
7366         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
7367         * testsuite/experimental/simd/tests/mask_loadstore.cc
7368         (make_mask, make_alternating_mask): Removed.
7369         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
7370         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
7371         Removed.
7372         * testsuite/experimental/simd/tests/abs.cc: Only include
7373         bits/main.h.
7374         Ditto.
7375         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
7376         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
7377         * testsuite/experimental/simd/tests/casts.cc: Ditto.
7378         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
7379         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
7380         * testsuite/experimental/simd/tests/generator.cc: Ditto.
7381         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
7382         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
7383         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
7384         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
7385         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
7386         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
7387         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
7388         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
7389         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
7390         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
7391         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
7392         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
7393         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
7394         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
7395         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
7396         * testsuite/experimental/simd/tests/simd.cc: Ditto.
7397         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
7398         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
7399         * testsuite/experimental/simd/tests/splits.cc: Ditto.
7400         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
7401         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
7402         * testsuite/experimental/simd/tests/where.cc: Ditto.
7403
7404 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
7405
7406         * testsuite/experimental/simd/README.md: Document the timeout
7407         and timeout-factor directives. Minor typo fixed.
7408
7409 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
7410
7411         PR libstdc++/108030
7412         * include/experimental/bits/simd_detail.h: Define
7413         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
7414         * include/experimental/bits/simd.h: Annotate lambdas with
7415         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
7416         * include/experimental/bits/simd_builtin.h: Ditto.
7417         * include/experimental/bits/simd_converter.h: Ditto.
7418         * include/experimental/bits/simd_fixed_size.h: Ditto.
7419         * include/experimental/bits/simd_math.h: Ditto.
7420         * include/experimental/bits/simd_neon.h: Ditto.
7421         * include/experimental/bits/simd_x86.h: Ditto.
7422
7423 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
7424
7425         * include/experimental/bits/simd.h
7426         (_SimdWrapper::_M_is_constprop_none_of)
7427         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
7428         computed result still satisfies __builtin_constant_p.
7429
7430 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7431
7432         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
7433         ellipsis character.
7434
7435 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7436
7437         * include/Makefile.am: Add new header.
7438         * include/Makefile.in: Regenerate.
7439         * include/experimental/synchronized_value: New file.
7440         * testsuite/experimental/synchronized_value.cc: New test.
7441
7442 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7443
7444         * include/experimental/optional: Fix header name in comment.
7445
7446 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7447
7448         * include/std/format (__format::_Arg_store): New class template.
7449         (basic_format_args): Remove nested type _Store and add deduction
7450         guide from _Arg_store.
7451         (basic_format_arg, make_format_args): Adjust.
7452         * testsuite/std/format/arguments/lwg3810.cc: New test.
7453
7454 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7455
7456         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
7457         constraints to constructors and add deleted overloads for the
7458         dangling cases, as per P2255R2.
7459         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
7460         make dangling cases ill-formed.
7461         * testsuite/20_util/pair/dangling_ref.cc: New test.
7462
7463 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7464
7465         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
7466
7467 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7468
7469         * include/ext/throw_allocator.h: Use reserved names for
7470         parameters.
7471
7472 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7473
7474         * testsuite/17_intro/names_pstl.cc: Add space after effective
7475         target name.
7476
7477 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7478
7479         * include/pstl/algorithm_fwd.h (__pattern_search_n)
7480         (__brick_unique_copy, __brick_adjacent_find)
7481         (__brick_generate_n, __pattern_generate_n): Use reserved names
7482         for parameters.
7483         * include/pstl/algorithm_impl.h (__brick_unique_copy)
7484         (__pattern_reverse, __brick_generate_n): Likewise.
7485         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
7486         (__prefer_parallel_tag): Likewise.
7487         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
7488         * include/pstl/glue_numeric_defs.h (adjacent_difference):
7489         Likewise.
7490         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
7491         Likewise.
7492         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
7493         * include/pstl/unseq_backend_simd.h (_Combiner)
7494         (__simd_min_element, __simd_minmax_element): Likewise.
7495         * testsuite/17_intro/names_pstl.cc: New test.
7496
7497 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7498
7499         * include/bits/fs_ops.h (create_directory): Use reserved name
7500         for parameter.
7501         * include/bits/ranges_algo.h (__contains_subrange_fn):
7502         Likewise.
7503         * include/bits/regex_automaton.h (_State_base::_M_print):
7504         Likewise.
7505         * include/bits/regex_automaton.tcc(_State_base::_M_print):
7506         Likewise.
7507         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
7508         * include/experimental/bits/fs_ops.h (create_directory):
7509         Likewise.
7510         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
7511         (recursive_timed_mutex:_M_clocklock): Likewise.
7512         * include/std/tuple (basic_common_reference): Likewise.
7513         * libsupc++/cxxabi_init_exception.h
7514         (__cxa_init_primary_exception): Likewise.
7515         * testsuite/17_intro/names.cc: Add checks.
7516
7517 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
7518
7519         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
7520         to www.open-std.org and https.
7521         * doc/html/manual/status.html: Regenerate.
7522
7523 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
7524
7525         PR libstdc++/103934
7526         * include/std/atomic (atomic_flag_wait): Add.
7527         (atomic_flag_wait_explicit): Add.
7528         (atomic_flag_notify): Add.
7529         (atomic_flag_notify_explicit): Add.
7530         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
7531         Add test case to cover missing atomic_flag free functions.
7532
7533 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
7534
7535         PR libstdc++/103934
7536         * include/std/atomic (atomic_flag_test): Add.
7537         (atomic_flag_test_explicit): Add.
7538         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
7539         test case to cover missing atomic_flag free functions.
7540         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
7541         Likewise.
7542
7543 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
7544
7545         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
7546         "The Component Object Model" reference.
7547         * doc/html/manual/policy_data_structures.html: Regenerate.
7548
7549 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
7550
7551         * doc/xml/manual/containers.xml: Tweak a link to N1780
7552         (C++ standard).
7553         * doc/html/manual/associative.html: Regenerate.
7554
7555 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
7556
7557         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
7558         * doc/html/manual/facets.html: Regenerate.
7559
7560 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
7561
7562         * doc/xml/manual/policy_data_structures_biblio.xml: Update
7563         link to "Worst-case efficient priority queues".
7564         * doc/html/manual/policy_data_structures.html: Regenerate.
7565
7566 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
7567
7568         * doc/xml/manual/using.xml: Document newly-freestanding
7569         headers and the effect of the -ffreestanding flag.
7570         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
7571         completed.
7572         * doc/xml/manual/configure.xml: Document that hosted installs
7573         respect __STDC_HOSTED__.
7574         * doc/xml/manual/test.xml: Document how to run tests in
7575         freestanding mode.
7576         * doc/html/*: Regenerate.
7577
7578 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
7579
7580         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
7581         (__find_last_if_fn): Likewise.
7582
7583 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
7584
7585         * include/std/type_traits: Add diagnostic pragmas around
7586         references to deprecated std::aligned_storage and
7587         std::aligned_union traits.
7588         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
7589         Add dg-warning for et c++23.
7590         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
7591         Likewise.
7592         * testsuite/20_util/aligned_storage/value.cc: Likewise.
7593         * testsuite/20_util/aligned_union/1.cc: Likewise.
7594         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
7595         Likewise.
7596
7597 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
7598
7599         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
7600         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
7601         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
7602         * include/std/type_traits (aligned_storage, aligned_union)
7603         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
7604         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
7605         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
7606
7607 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
7608
7609         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
7610         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
7611         consistent with other 'deprecated' macros.
7612         * include/std/type_traits (is_pod, is_pod_v): Use
7613         _GLIBCXX20_DEPRECATED_SUGGEST instead.
7614
7615 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
7616
7617         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
7618         * Makefile.in: Regenerate.
7619         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
7620         There's no history to be compatible with.
7621         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
7622         source files from the build.
7623         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
7624         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
7625         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
7626         * src/Makefile.in: Regenerate.
7627         * src/c++11/Makefile.in: Regenerate.
7628         * src/c++17/Makefile.in: Regenerate.
7629         * src/c++20/Makefile.in: Regenerate.
7630         * src/c++98/Makefile.in: Regenerate.
7631
7632 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
7633
7634         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
7635         filesystem, libbacktrace and experimental.
7636         * src/Makefile.in: Regenerate.
7637
7638 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
7639
7640         PR libstdc++/108672
7641         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
7642         instead of int32_t.
7643
7644 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
7645
7646         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
7647         * doc/html/manual/documentation_hacking.html: Regenerate.
7648
7649 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
7650
7651         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
7652         storage to the move-from instance when allocators are equal.
7653         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
7654         New test case.
7655
7656 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
7657
7658         * config/os/gnu-linux/os_defines.h [!__linux__]
7659         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
7660
7661 2023-02-03  Patrick Palka  <ppalka@redhat.com>
7662
7663         * include/bits/ranges_algo.h (__find_last_fn, find_last):
7664         Define.
7665         (__find_last_if_fn, find_last_if): Define.
7666         (__find_last_if_not_fn, find_last_if_not): Define.
7667         * testsuite/25_algorithms/find_last/1.cc: New test.
7668         * testsuite/25_algorithms/find_last_if/1.cc: New test.
7669         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
7670
7671 2023-02-03  Patrick Palka  <ppalka@redhat.com>
7672
7673         * include/bits/ranges_algo.h (out_value_result): Define.
7674         (iota_result): Define.
7675         (__iota_fn, iota): Define.
7676         * testsuite/25_algorithms/iota/1.cc: New test.
7677
7678 2023-02-03  Patrick Palka  <ppalka@redhat.com>
7679
7680         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
7681         (__contains_subrange_fn, contains_subrange): Define.
7682         * testsuite/25_algorithms/contains/1.cc: New test.
7683         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
7684
7685 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
7686
7687         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
7688         * doc/html/manual/abi.html: Regenerate.
7689
7690 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
7691
7692         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
7693         errc::function_not_supported instead of errc::not_supported.
7694
7695 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
7696
7697         * include/std/sstream  (basic_stringbuf::view): Define for old
7698         std::string ABI.
7699         (basic_istringstream::view, basic_0stringstream::view)
7700         (basic_stringstream::view): Likewise.
7701         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
7702         { dg-require-effective-target cxx11_abi }.
7703         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
7704         Likewise.
7705         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
7706         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
7707         Likewise.
7708         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
7709         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
7710         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
7711         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
7712         Likewise.
7713
7714 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
7715
7716         PR libstdc++/108636
7717         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
7718         conversion operators for directory iterator comparisons with
7719         std::default_sentinel_t.
7720         * include/bits/fs_path.h (path::path(string_view, _Type))
7721         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
7722         definitions to ...
7723         * src/c++17/fs_path.cc: ... here.
7724         * testsuite/27_io/filesystem/path/108636.cc: New test.
7725
7726 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
7727
7728         * include/std/variant (variant::operator=): Implement resolution
7729         of LWG 3585.
7730         * testsuite/20_util/variant/lwg3585.cc: New test.
7731
7732 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
7733
7734         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
7735         link to https.
7736         * doc/html/manual/using_exceptions.html: Regenerate.
7737
7738 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
7739
7740         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
7741         * doc/html/manual/debug.html: Regenerate.
7742
7743 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
7744
7745         * src/c++11/random.cc (random_device::_M_fini): Do not try to
7746         close the file handle if the target doesn't support the
7747         /dev/random and /dev/urandom files.
7748
7749 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
7750
7751         * config/os/generic/error_constants.h (errc::value_too_large)
7752         [__AVR__]: Define.
7753         * src/c++11/system_error.cc
7754         (system_category::default_error_condition) [__AVR__]: Only match
7755         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
7756         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
7757         for ENOENT etc. in switch.
7758         (fs::remove_all) [__AVR__]: Likewise.
7759         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
7760         close etc.
7761
7762 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
7763
7764         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
7765         embed_zoneinfo=no
7766         * configure: Regenerate.
7767
7768 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
7769
7770         PR testsuite/108632
7771         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
7772         struct at end of S0.
7773
7774 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
7775
7776         * doc/xml/manual/shared_ptr.xml: Move links from both
7777         http://open-std.org and http://www.open-std.org to
7778         https://www.open-std.org.
7779         * doc/html/manual/memory.html: Regenerate.
7780
7781 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
7782
7783         * doc/xml/manual/appendix_contributing.xml: Adjust link to
7784         ISO C++ standard at ANSI.
7785         Move link to www.open-std.org to https.
7786         * doc/html/manual/appendix_contributing.html: Regenerate.
7787
7788 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
7789
7790         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
7791         links to https.
7792         * doc/html/manual/documentation_hacking.html: Regenerate.
7793
7794 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
7795
7796         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
7797         * doc/html/manual/abi.html: Regenerate.
7798
7799 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
7800
7801         PR libstdc++/108568
7802         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
7803         include features.h if present and then check __GLIBC__ and
7804         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
7805         __GLIBC_PREREQ which isn't defined yet.
7806
7807 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
7808
7809         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
7810         string literal.
7811
7812 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
7813
7814         PR libstdc++/108554
7815         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
7816
7817 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
7818
7819         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
7820         rules named "+" for compatibility with older tzdata.zi files.
7821
7822 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
7823
7824         PR libstdc++/108554
7825         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
7826         nonnull attribute.
7827         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
7828         attributes.
7829         * testsuite/23_containers/map/modifiers/108554.cc: New test.
7830
7831 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
7832
7833         PR libstdc++/108530
7834         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
7835         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
7836
7837 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
7838
7839         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
7840         use https.
7841         * doc/html/manual/bugs.html: Regenerate.
7842
7843 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
7844
7845         PR libstdc++/108530
7846         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
7847         /etc/sysconfig/clock.
7848
7849 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
7850
7851         PR libstdc++/102301
7852         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
7853         std::make_reverse_iterator.
7854         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
7855         (make_from_tuple): Add static assertion from P2255 to diagnose
7856         dangling references.
7857         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
7858         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
7859
7860 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
7861
7862         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
7863         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
7864         (_Safe_iterator::operator++(int)): Use latter.
7865         (_Safe_iterator::operator--(int)): Likewise.
7866         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
7867         check.
7868         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
7869         New.
7870         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
7871         (_Safe_local_iterator::operator++(int)): Use latter.
7872         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
7873         entry associated to the array entry.
7874
7875 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
7876
7877         * include/bits/fs_path.h (u8path): Add deprecated attribute.
7878         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
7879         -Wno-deprecated-declarations for C++20 and later.
7880         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
7881         Likewise.
7882         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
7883         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
7884         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
7885
7886 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
7887
7888         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
7889         Always call _M_fini and _M_getentropy.
7890
7891 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
7892
7893         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
7894         to www.open-std.org to use https.
7895         (COM: Component Model Object Technologies): Rename from...
7896         (The Component Object Model): ...to.
7897         * doc/html/manual/policy_data_structures.html: Regenerate.
7898
7899 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
7900
7901         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
7902         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
7903         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
7904
7905 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
7906
7907         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
7908         of $host. Fix check for file being present during native build.
7909         * configure: Regenerate.
7910
7911 2023-01-17  Martin Liska  <mliska@suse.cz>
7912
7913         * src/libbacktrace/Makefile.in: Regenerate.
7914
7915 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
7916
7917         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
7918
7919 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
7920
7921         PR libstdc++/108413
7922         * include/c_compatibility/stdatomic.h: Change copyright line to
7923         be consistent with other headers contributed under DCO terms.
7924         * include/std/expected: Add full stop to copyright line.
7925         * src/c++20/tzdb.cc: Likewise.
7926
7927 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
7928
7929         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
7930         https.
7931         * doc/xml/manual/status_cxx2017.xml: Ditto.
7932         * doc/xml/manual/status_cxx2020.xml: Ditto.
7933         * doc/xml/manual/status_cxx2023.xml: Ditto.
7934         * doc/html/manual/status.html: Regenerate.
7935
7936 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
7937
7938         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
7939         and fail gracefully if defining the weak symbol doesn't work.
7940
7941 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
7942
7943         PR libstdc++/108288
7944         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
7945         fix to other iterator category.
7946         (_Safe_iterator<>::operator--(int)): Likewise.
7947         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
7948         Fix deadlock.
7949         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
7950         (invalid_local_iterator_post_increment): New.
7951         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
7952         New test.
7953         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
7954         New test.
7955
7956 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
7957
7958         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
7959         dg-options.
7960
7961 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
7962
7963         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
7964
7965 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
7966
7967         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
7968         windows.h. Add pecoff as FORMAT_FILE.
7969         * config.h.in: Regenerate.
7970         * configure: Regenerate.
7971         * src/libbacktrace/Makefile.am: Regenerate.
7972         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
7973
7974 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
7975
7976         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
7977         raw __name if __cxa_demangle could not demangle it.
7978
7979 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7980
7981         PR libstdc++/108409
7982         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
7983         variable.
7984
7985 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7986
7987         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
7988         loading tzdb.
7989         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
7990         effective target.
7991         * testsuite/std/time/tzdb_list/1.cc: Likewise.
7992
7993 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7994
7995         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
7996         --with-libstdcxx-zoneinfo-dir configure option with
7997         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
7998         a directory.
7999         * config.h.in: Regenerate.
8000         * configure: Regenerate.
8001         * doc/xml/manual/configure.xml: Document configure option.
8002         * doc/html/manual/configure.html: Regenerate.
8003         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
8004         * src/c++20/Makefile.in: Regenerate.
8005         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
8006         null pointer if no directory is configured.
8007         (zoneinfo_dir): Replace with ...
8008         (zoneinfo_file): New function.
8009         (tzdata_stream): New istream class.
8010         (remote_version, reload_tzdb): Use tzdata_stream.
8011         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
8012         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
8013         tzdata.zi file in default location.
8014         * src/c++20/tzdata.zi: New file.
8015
8016 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
8017
8018         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
8019         * testsuite/std/time/month_day/io.cc: New test.
8020         * testsuite/std/time/month_day_last/io.cc: New test.
8021         * testsuite/std/time/month_weekday/io.cc: New test.
8022         * testsuite/std/time/month_weekday_last/io.cc: New test.
8023         * testsuite/std/time/weekday_indexed/io.cc: New test.
8024         * testsuite/std/time/weekday_last/io.cc: New test.
8025         * testsuite/std/time/year_month/io.cc: New test.
8026         * testsuite/std/time/year_month_day_last/io.cc: New test.
8027         * testsuite/std/time/year_month_weekday/io.cc: New test.
8028         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
8029
8030 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
8031
8032         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
8033         specifications.
8034         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
8035         export.
8036
8037 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
8038
8039         * include/bits/std_mutex.h: Include <errno.h>.
8040
8041 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
8042
8043         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
8044         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
8045         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
8046         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
8047         std::make_unique with a freestanding-compatible wrapper around
8048         unique_ptr.
8049         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
8050         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
8051         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
8052         Ditto.
8053         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
8054         of __cpp_lib_ranges in !HOSTED.
8055
8056 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
8057
8058         * include/Makefile.am: Install bits/char_traits.h,
8059         std/string_view
8060         * include/Makefile.in: Regenerate.
8061         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
8062         mbstate-only bits behind appropriate #ifs.
8063         * include/std/string_view: Gate <iostream> functionality behind
8064         HOSTED.
8065         * include/std/version: Enable __cpp_lib_constexpr_string_view
8066         and __cpp_lib_starts_ends_with in !HOSTED.
8067         * include/std/ranges: Re-enable __is_basic_string_view on
8068         freestanding, include <string_view> directly.
8069         * include/precompiled/stdc++.h: Include <string_view> when
8070         !HOSTED too.
8071         * testsuite/20_util/function_objects/searchers.cc: Skip testing
8072         boyer_moore searchers on freestanding
8073         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
8074         <string>-related tests behind __STDC_HOSTED__.
8075         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
8076         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
8077         unused <stdexcept> include.
8078         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
8079         unused <vector> include.
8080         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
8081         Guard <string> related testing behind __STDC_HOSTED__.
8082         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
8083         Guard <stdexcept> related tests behind __STDC_HOSTED__.
8084         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
8085         Ditto.
8086         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
8087         Guard <stdexcept> tests behind __STDC_HOSTED__.
8088         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
8089         Enable test on freestanding, guard <stdexcept> bits behind
8090         __STDC_HOSTED__.
8091         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
8092         Guard <stdexcept> bits behind __STDC_HOSTED__.
8093         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
8094         Ditto.
8095
8096 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
8097
8098         PR libstdc++/86419
8099         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
8100         errors in incomplete multibyte sequences.
8101         (utf16_in): Remove surrogates parameter. Fix conditions for
8102         returning partial.
8103         (utf16_out): Fix condition for returning partial.
8104         (ucs2_in): Do not pass surrogates argument to utf16_in.
8105         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
8106         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
8107         tests.
8108         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
8109         test.
8110
8111 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
8112
8113         PR libstdc++/108331
8114         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
8115         __GTHREAD_LEGACY_MUTEX_T if defined.
8116
8117 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
8118
8119         PR libstdc++/108327
8120         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
8121         Export __try_use_facet specializations for facets in namespace
8122         __gnu_cxx_ldbl128.
8123         * config/os/gnu-linux/ldbl-ieee128-extra.ver
8124         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
8125         __gnu_cxx_ieee128.
8126         * testsuite/util/testsuite_abi.cc: Add to lists of known and
8127         latest versions.
8128
8129 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
8130
8131         * include/bits/std_mutex.h: Remove <system_error> include.
8132         * include/std/condition_variable: Add <bits/error_constants.h>
8133         include.
8134         * include/std/mutex: Likewise.
8135         * include/std/shared_mutex: Likewise.
8136
8137 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
8138
8139         PR libstdc++/77691
8140         * include/experimental/memory_resource
8141         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
8142         (do_allocate, do_deallocate): Check it.
8143         * testsuite/experimental/memory_resource/new_delete_resource.cc:
8144         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
8145
8146 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
8147
8148         * doc/xml/manual/abi.xml: Add latest library versions.
8149         * doc/html/manual/abi.html: Regenerate.
8150
8151 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
8152
8153         PR libstdc++/107189
8154         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
8155         unused _Alloc_node instance.
8156
8157 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
8158
8159         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
8160         Define as unsigned long if always lock-free, and unsigned int
8161         otherwise.
8162
8163 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
8164
8165         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
8166         __catch macros for exception handling.
8167
8168 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
8169
8170         PR libstdc++/108221
8171         * include/bits/stl_algobase.h (__lg): Replace six overloads with
8172         a single function template for all integer types.
8173         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
8174         arithmetic results back to _Distance.
8175
8176 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
8177
8178         PR libstdc++/108221
8179         * include/std/span (span::span()): Un-simplify constraint to
8180         work for size_t of lesser rank than int.
8181
8182 2023-01-07  LIU Hao  <lh_mouse@126.com>
8183
8184         PR middle-end/108300
8185         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
8186         <windows.h>.
8187         * src/c++11/thread.cc: Likewise.
8188         * src/c++17/fs_ops.cc: Likewise.
8189         * src/filesystem/ops.cc: Likewise.
8190
8191 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
8192
8193         PR libstdc++/108228
8194         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
8195
8196 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
8197
8198         PR libstdc++/108235
8199         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
8200         template and partial specialization for synchronizing access to
8201         time_zone::_Impl::infos.
8202         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
8203         rules_counter.
8204
8205 2023-01-06  Patrick Palka  <ppalka@redhat.com>
8206
8207         PR libstdc++/108260
8208         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
8209         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
8210         (__cpp_lib_ranges_chunk): Likewise.
8211         (__cpp_lib_ranges_slide): Likewise.
8212         (__cpp_lib_ranges_chunk_by): Likewise.
8213         (__cpp_lib_ranges_join_with): Likewise.
8214         (__cpp_lib_ranges_repeat): Likewise.
8215         (__cpp_lib_ranges_stride): Likewise.
8216         (__cpp_lib_ranges_cartesian_product): Likewise.
8217         (__cpp_lib_ranges_as_rvalue): Likewise.
8218         * include/std/version: Ditto.
8219         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
8220         feature-test macro.
8221         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
8222         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
8223         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
8224         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
8225         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
8226         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
8227         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
8228         * testsuite/std/ranges/repeat/1.cc: Likewise.
8229         * testsuite/std/ranges/zip/1.cc: Likewise.
8230         * testsuite/std/ranges/version_c++23.cc: New test.
8231
8232 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
8233
8234         PR libstdc++/108214
8235         * include/std/bitset (operator>>): Use alloca in the right
8236         scope, not in a constructor.
8237         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
8238
8239 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
8240
8241         PR libstdc++/108221
8242         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
8243         Disable visiting floating-point types.
8244
8245 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
8246
8247         PR libstdc++/108288
8248         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
8249         (_Safe_iterator::operator--(int)): Do not hold lock around
8250         construction of return value.
8251
8252 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
8253
8254         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
8255         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
8256         lock release.  Revise loop.
8257         (__atomic_add): Likewise.
8258
8259 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
8260
8261         PR libstdc++/108212
8262         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
8263         variable.
8264         (StdChronoTimePointPrinter::to_string): Use it.
8265
8266 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
8267
8268         PR libstdc++/108290
8269         * include/std/functional (_Bind_front): Add no_unique_address
8270         attribute to data members.
8271         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
8272         size of call wrappers with empty types for targets and bound
8273         arguments.
8274
8275 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
8276
8277         PR libstdc++/108211
8278         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
8279         using only last component of the name.
8280
8281 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
8282
8283         PR libstdc++/108228
8284         PR libstdc++/108235
8285         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
8286         the latest symbol version.
8287         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
8288         atomic<_Node*> is not always lock free.
8289         (USE_ATOMIC_LIST_HEAD): New macro.
8290         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
8291         definition of weak symbol.
8292         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
8293         (tzdb_list::_Node::_S_list_head): New function for accessing
8294         list head efficiently.
8295         (tzdb_list::_Node::_S_cache_list_head): New function for
8296         updating _S_list_head.
8297
8298 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
8299
8300         PR libstdc++/108265
8301         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
8302         duration rep is unsigned.
8303         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
8304
8305 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
8306
8307         PR libstdc++/108228
8308         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
8309         Add __gnu_cxx::zoneinfo_dir_override().
8310
8311 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
8312
8313         PR libstdc++/108258
8314         * include/std/array (__array_traits<T, 0>::operator T*()): Add
8315         constexpr.
8316         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
8317         std::array<T, 0>::data().
8318
8319 \f
8320 Copyright (C) 2023 Free Software Foundation, Inc.
8321
8322 Copying and distribution of this file, with or without modification,
8323 are permitted in any medium without royalty provided the copyright
8324 notice and this notice are preserved.