libstdc++-v3/ChangeLog

   1 2024-04-30  Christophe Lyon  <christophe.lyon@linaro.org>
   2
   3         * testsuite/lib/gdb-test.exp (gdb-test): Fix regexp.  Quote
   4         newlines in logs.
   5
   6 2024-04-29  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
   7
   8         Backported from master:
   9         2024-04-29  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
  10
  11         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
  12         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
  13         Likewise.
  14         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
  15         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
  16         Likewise.
  17
  18 2024-04-29  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
  19
  20         Backported from master:
  21         2024-04-29  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
  22
  23         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
  24         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
  25         Likewise.
  26         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
  27         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
  28         Likewise.
  29
  30 2024-04-26  Jonathan Wakely  <jwakely@redhat.com>
  31
  32         PR libstdc++/114863
  33         * include/std/format (__formatter_fp::format): Only use
  34         _M_localized for finite values.
  35         * testsuite/std/format/functions/format.cc: Check localized
  36         formatting of NaN and initiny.
  37
  38 2024-04-26  Jonathan Wakely  <jwakely@redhat.com>
  39
  40         * doc/html/manual/status.html: Regenerate.
  41         * doc/xml/manual/status_cxx1998.xml: Adjust whitespace.
  42         * doc/xml/manual/status_cxx2011.xml: Likewise.
  43         * doc/xml/manual/status_cxx2014.xml: Likewise.
  44         * doc/xml/manual/status_cxx2017.xml: Likewise.
  45         * doc/xml/manual/status_cxx2020.xml: Likewise.
  46         * doc/xml/manual/status_cxx2023.xml: Likewise.
  47         * doc/xml/manual/status_cxxtr1.xml: Likewise.
  48         * doc/xml/manual/status_cxxtr24733.xml: Likewise.
  49
  50 2024-04-25  Jonathan Wakely  <jwakely@redhat.com>
  51
  52         * scripts/run_doxygen: Rename man pages for nested types.
  53
  54 2024-04-25  Jonathan Wakely  <jwakely@redhat.com>
  55
  56         * include/std/chrono (tzdb_list): Fix typo in Doxygen comment.
  57
  58 2024-04-25  Jonathan Wakely  <jwakely@redhat.com>
  59
  60         * scripts/run_doxygen: Adjust sed pattern to match '\fR' for
  61         new man output that Doxygen 1.10 generates.
  62
  63 2024-04-25  Jonathan Wakely  <jwakely@redhat.com>
  64
  65         * doc/doxygen/stdheader.cc (init_map): Add missing headers.
  66         * doc/doxygen/user.cfg.in (EXCLUDE): Exclude generated files for
  67         std::format and std::text_encoding.
  68
  69 2024-04-25  Jonathan Wakely  <jwakely@redhat.com>
  70
  71         * include/std/variant: Add comment to #include.
  72
  73 2024-04-22  Matthias Kretz  <m.kretz@gsi.de>
  74
  75         PR libstdc++/114803
  76         * include/experimental/bits/simd_builtin.h
  77         (_SimdBase2::operator __vector_type_t): There is no __builtin()
  78         function in _SimdWrapper, instead use its conversion operator.
  79         * testsuite/experimental/simd/pr114803_vecbuiltin_cvt.cc: New
  80         test.
  81
  82 2024-04-22  Matthias Kretz  <m.kretz@gsi.de>
  83
  84         * include/experimental/bits/simd.h: Ignore -Wnarrowing for
  85         arm_neon.h.
  86         (__int_for_sizeof): Replace tautological compare with checking
  87         for invalid template parameter value.
  88         * include/experimental/bits/simd_builtin.h (__extract_part):
  89         Remove tautological compare by combining two static_assert.
  90
  91 2024-04-22  Jakub Jelinek  <jakub@redhat.com>
  92
  93         * testsuite/17_intro/names.cc (d, f): Undefine on s390*-linux*.
  94         * testsuite/17_intro/headers/c++1998/all_attributes.cc (packed): Don't
  95         define on s390.
  96         * testsuite/17_intro/headers/c++2011/all_attributes.cc (packed):
  97         Likewise.
  98         * testsuite/17_intro/headers/c++2014/all_attributes.cc (packed):
  99         Likewise.
 100         * testsuite/17_intro/headers/c++2017/all_attributes.cc (packed):
 101         Likewise.
 102         * testsuite/17_intro/headers/c++2020/all_attributes.cc (packed):
 103         Likewise.
 104
 105 2024-04-19  Jonathan Wakely  <jwakely@redhat.com>
 106
 107         * include/bits/refwrap.h (operator<=>): Simplify constraints.
 108
 109 2024-04-19  Jonathan Wakely  <jwakely@redhat.com>
 110
 111         PR libstdc++/114770
 112         * src/c++20/tzdb.cc (do_locate_zone): Support links that have
 113         another link as their target.
 114         * testsuite/std/time/tzdb/1.cc: Check that all zones and links
 115         can be found by locate_zone.
 116         * testsuite/std/time/tzdb/links.cc: New test.
 117
 118 2024-04-18  Alexandre Oliva  <oliva@adacore.com>
 119
 120         * testsuite/29_atomics/atomic/compare_exchange_padding.cc:
 121         Disable SRA.
 122
 123 2024-04-18  Alexandre Oliva  <oliva@adacore.com>
 124
 125         * testsuite/20_util/from_chars/8.cc: Skip float128_t testing
 126         on aarch64-vxworks.
 127         * testsuite/20_util/to_chars/float128_c++23.cc: Xfail run on
 128         aarch64-vxworks.
 129
 130 2024-04-18  Alexandre Oliva  <oliva@adacore.com>
 131
 132         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Define
 133         on VxWorks non-RTP.
 134
 135 2024-04-17  Jonathan Wakely  <jwakely@redhat.com>
 136
 137         * include/std/ostream (println(ostream&)): Define new overload.
 138         * include/std/print (println(FILE*), println()): Likewise.
 139         * testsuite/27_io/basic_ostream/print/2.cc: New test.
 140         * testsuite/27_io/print/1.cc: Remove unused header.
 141         * testsuite/27_io/print/3.cc: New test.
 142
 143 2024-04-17  Matthias Kretz  <m.kretz@gsi.de>
 144
 145         * include/experimental/bits/numeric_traits.h: Add include guard.
 146
 147 2024-04-17  Matthias Kretz  <m.kretz@gsi.de>
 148
 149         PR libstdc++/114750
 150         * include/experimental/bits/simd_builtin.h
 151         (_SimdImplBuiltin::_S_load, _S_store): Fall back to copying
 152         scalars if the memory type cannot be vectorized for the target.
 153
 154 2024-04-16  Jonathan Wakely  <jwakely@redhat.com>
 155
 156         * config/locale/dragonfly/numeric_members.cc: Fix typos in
 157         comments.
 158         * config/locale/gnu/numeric_members.cc: Likewise.
 159
 160 2024-04-15  Jonathan Wakely  <jwakely@redhat.com>
 161
 162         * doc/xml/manual/abi.xml: Replace "<next>" with "14.1.0".
 163         * doc/html/manual/abi.html: Regenerate.
 164
 165 2024-04-15  Jonathan Wakely  <jwakely@redhat.com>
 166
 167         * include/bits/refwrap.h (reference_wrapper): Add comparison
 168         operators as proposed by P2944R3.
 169         * include/bits/version.def (reference_wrapper): Define.
 170         * include/bits/version.h: Regenerate.
 171         * include/std/functional: Enable feature test macro.
 172         * testsuite/20_util/reference_wrapper/compare.cc: New test.
 173
 174 2024-04-15  Jonathan Wakely  <jwakely@redhat.com>
 175
 176         PR libstdc++/113386
 177         * include/bits/stl_pair.h (operator==, operator<=>): Support
 178         heterogeneous comparisons, as per LWG 3865.
 179         * testsuite/20_util/pair/comparison_operators/lwg3865.cc: New
 180         test.
 181
 182 2024-04-15  Jonathan Wakely  <jwakely@redhat.com>
 183
 184         PR libstdc++/93672
 185         * src/c++98/istream.cc (istream::ignore(streamsize, int_type)):
 186         Treat all negative delimiter values as eof().
 187         * testsuite/27_io/basic_istream/ignore/char/93672.cc: New test.
 188         * testsuite/27_io/basic_istream/ignore/wchar_t/93672.cc: New
 189         test.
 190
 191 2024-04-15  Andreas Schwab  <schwab@suse.de>
 192
 193         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
 194
 195 2024-04-13  H.J. Lu  <hjl.tools@gmail.com>
 196
 197         * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt:
 198         Updated.
 199
 200 2024-04-11  Jakub Jelinek  <jakub@redhat.com>
 201
 202         * doc/xml/manual/abi.xml: Add latest library versions.
 203         * doc/html/manual/abi.html: Regenerate.
 204
 205 2024-04-11  Jakub Jelinek  <jakub@redhat.com>
 206
 207         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
 208         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
 209         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
 210         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
 211         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
 212         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
 213         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
 214         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Update.
 215         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
 216
 217 2024-04-11  Jonathan Wakely  <jwakely@redhat.com>
 218
 219         PR libstdc++/114692
 220         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Move new exports for
 221         __basic_file::native_handle to ...
 222         (GLIBCXX_3.4.33): ... here. Adjust to not match wchar_t
 223         specialization, which isn't used.
 224         * testsuite/util/testsuite_abi.cc: Add GLIBCXX_3.4.33 and update
 225         latest version check.
 226
 227 2024-04-11  Jakub Jelinek  <jakub@redhat.com>
 228
 229         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
 230         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
 231         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
 232         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
 233         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
 234         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
 235         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
 236         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Update.
 237         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
 238
 239 2024-04-10  Jonathan Wakely  <jwakely@redhat.com>
 240
 241         * testsuite/27_io/manipulators/extended/get_time/char/2.cc:
 242         Adjust input string so that it matches %a with or without a
 243         trailing period.
 244         * testsuite/std/time/year_month_day/io.cc: Adjust expected
 245         format for %x in the fr_FR locale.
 246
 247 2024-04-10  Jonathan Wakely  <jwakely@redhat.com>
 248
 249         * src/c++17/fs_ops.cc (remove_all) [__FreeBSD__ || __DragonFly__]:
 250         Check for EMLINK as well as ELOOP.
 251         [__NetBSD__]: Check for EFTYPE as well as ELOOP.
 252
 253 2024-04-09  Jonathan Wakely  <jwakely@redhat.com>
 254
 255         PR libstdc++/114633
 256         * include/bits/chrono_io.h (_Parser::operator()) <'S'>: Use
 257         stream extraction if std::from_chars is not available.
 258
 259 2024-04-08  Jonathan Wakely  <jwakely@redhat.com>
 260
 261         PR libstdc++/114519
 262         * include/bits/unicode.h (_Utf8_view) [!__cpp_char8_t]: Define
 263         using char instead of char8_t.
 264         * testsuite/ext/unicode/view.cc: Use u8""sv literals to create
 265         string views, instead of std::u8string_view.
 266
 267 2024-04-08  Jonathan Wakely  <jwakely@redhat.com>
 268
 269         * testsuite/20_util/integer_comparisons/equal_neg.cc: Use
 270         no-opts selector for errors that depend on -fchar8_t.
 271         * testsuite/20_util/integer_comparisons/greater_equal_neg.cc:
 272         Likewise.
 273         * testsuite/20_util/integer_comparisons/greater_neg.cc:
 274         Likewise.
 275         * testsuite/20_util/integer_comparisons/in_range_neg.cc:
 276         Likewise.
 277         * testsuite/20_util/integer_comparisons/less_equal_neg.cc:
 278         Likewise.
 279         * testsuite/20_util/integer_comparisons/less_neg.cc: Likewise.
 280         * testsuite/20_util/integer_comparisons/not_equal_neg.cc:
 281         Likewise.
 282         * testsuite/21_strings/basic_string/hash/hash_char8_t.cc: Skip
 283         if -fno-char8_t is used.
 284         * testsuite/21_strings/headers/cuchar/functions_std_cxx20.cc:
 285         Likewise.
 286         * testsuite/27_io/basic_ostream/inserters_character/char/deleted.cc:
 287         Likewise.
 288         * testsuite/27_io/basic_ostream/inserters_character/wchar_t/deleted.cc:
 289         Likewise.
 290         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: Use
 291         char for u8 literal if char8_t is not available.
 292         * testsuite/27_io/headers/iosfwd/synopsis.cc: Check
 293         __cpp_char8_t.
 294         * testsuite/29_atomics/atomic_integral/wait_notify.cc: Likewise.
 295         * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc:
 296         Remove check for _GLIBCXX_USE_CHAR8_T.
 297
 298 2024-04-08  Jonathan Wakely  <jwakely@redhat.com>
 299
 300         * testsuite/20_util/from_chars/1_neg.cc: Add char8_t cases,
 301         using a struct of that name if -fno-char8_t is active.
 302         * testsuite/20_util/from_chars/1_c++20_neg.cc: Removed.
 303
 304 2024-04-03  Jonathan Wakely  <jwakely@redhat.com>
 305
 306         PR libstdc++/104606
 307         * include/std/optional (operator<=>(const optional<T>&, const U&)):
 308         Reverse order of three_way_comparable_with template arguments.
 309         * testsuite/20_util/optional/relops/104606.cc: New test.
 310
 311 2024-04-02  Jonathan Wakely  <jwakely@redhat.com>
 312
 313         PR libstdc++/114519
 314         * include/bits/unicode.h (_Utf8_view): Guard with check for
 315         char8_t being enabled.
 316         (__literal_encoding_is_unicode): Guard use of char8_t with check
 317         for it being enabled.
 318         * testsuite/std/format/functions/114519.cc: New test.
 319
 320 2024-04-02  Patrick Palka  <ppalka@redhat.com>
 321
 322         * include/std/ranges (ranges::__detail::_Empty): Rename to ...
 323         (ranges::__detail::_Absent): ... this.  Turn into a template
 324         parameterized by the absent type _Tp and discriminator _Disc.
 325         (ranges::__detail::__maybe_present_t): Add an optional
 326         discriminator parameter.
 327         (slide_view::_M_cached_begin): Pass a discriminator argument to
 328         __maybe_present_t.
 329         (slide_view::_M_cached_end): Likewise.
 330         * testsuite/std/ranges/adaptors/sizeof.cc: Verify the size of
 331         slide_view<V> is 3 instead 4 pointers.
 332
 333 2024-04-02  Jakub Jelinek  <jakub@redhat.com>
 334
 335         * acinclude.m4: Fix duplicated words; file file -> file can.
 336         * configure.host: Fix duplicated words; the the -> the.
 337
 338 2024-03-29  Arsen Arsenović  <arsen@aarsen.me>
 339
 340         * testsuite/24_iterators/range_generators/01.cc: Drop GCC
 341         Runtime Library Exception.
 342         * testsuite/24_iterators/range_generators/02.cc: Drop GCC
 343         Runtime Library Exception.
 344         * testsuite/24_iterators/range_generators/copy.cc: Drop GCC
 345         Runtime Library Exception.
 346         * testsuite/24_iterators/range_generators/except.cc: Drop GCC
 347         Runtime Library Exception.
 348         * testsuite/24_iterators/range_generators/subrange.cc: Drop GCC
 349         Runtime Library Exception.
 350         * testsuite/24_iterators/range_generators/synopsis.cc: Drop GCC
 351         Runtime Library Exception.
 352         * testsuite/24_iterators/range_generators/iter_deref_return.cc:
 353         Drop GCC Runtime Library Exception from the "You should have
 354         received a copy" paragraph.
 355
 356 2024-03-27  Matthias Kretz  <m.kretz@gsi.de>
 357
 358         * include/experimental/bits/simd_x86.h (_S_masked_unary):
 359         Cast inputs < 16 bytes to 16 byte vectors before calling the
 360         right subtraction builtin. Before returning, truncate to the
 361         return vector type.
 362
 363 2024-03-27  Matthias Kretz  <m.kretz@gsi.de>
 364
 365         * include/experimental/bits/simd_x86.h (_S_masked_unary): Call
 366         the 4- and 8-byte variants of __builtin_ia32_subp[ds] without
 367         rounding direction argument.
 368
 369 2024-03-27  Srinivas Yadav Singanaboina  <vasu.srinivasvasu.14@gmail.com>
 370
 371         * include/Makefile.am: Add simd_sve.h.
 372         * include/Makefile.in: Add simd_sve.h.
 373         * include/experimental/bits/simd.h: Add new SveAbi.
 374         * include/experimental/bits/simd_builtin.h: Use
 375         __no_sve_deduce_t to support existing Neon Abi.
 376         * include/experimental/bits/simd_converter.h: Convert
 377         sequentially when sve is available.
 378         * include/experimental/bits/simd_detail.h: Define sve
 379         specific macro.
 380         * include/experimental/bits/simd_math.h: Fallback frexp
 381         to execute sequntially when sve is available, to handle
 382         fixed_size_simd return type that always uses sve.
 383         * include/experimental/simd: Include bits/simd_sve.h.
 384         * testsuite/experimental/simd/tests/bits/main.h: Enable
 385         testing for sve128, sve256, sve512.
 386         * include/experimental/bits/simd_sve.h: New file.
 387
 388 2024-03-26  Arsen Arsenović  <arsen@aarsen.me>
 389
 390         * include/std/generator (generator::_Iterator::operator*): Fix
 391         return type.
 392         * testsuite/24_iterators/range_generators/iter_deref_return.cc:
 393         New test.
 394
 395 2024-03-26  Arsen Arsenović  <arsen@aarsen.me>
 396
 397         * include/std/generator: Fix _V badname.
 398
 399 2024-03-26  Jonathan Wakely  <jwakely@redhat.com>
 400
 401         * testsuite/19_diagnostics/stacktrace/current.cc: Check for
 402         __cpp_lib_stacktrace instead of check for stacktrace ET.
 403         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
 404         * testsuite/19_diagnostics/stacktrace/hash.cc: Likewise.
 405         * testsuite/19_diagnostics/stacktrace/output.cc: Likewise.
 406         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
 407         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Likewise.
 408         * testsuite/19_diagnostics/stacktrace/version.cc: Likewise.
 409         * testsuite/23_containers/vector/debug/assign4_backtrace_neg.cc:
 410         Likewise.
 411         * testsuite/lib/libstdc++.exp (check_effective_target_stacktrace):
 412         Remove.
 413
 414 2024-03-26  Jonathan Wakely  <jwakely@redhat.com>
 415
 416         * testsuite/lib/dg-options.exp (dg-require-cpp-feature-test):
 417         New proc.
 418         * testsuite/lib/libstdc++.exp (check_v3_target_cpp_feature_test):
 419         New proc.
 420         * testsuite/std/text_encoding/cons.cc: Use new directive to skip
 421         the test if the __cpp_lib_text_encoding feature test macro is
 422         not defined.
 423         * testsuite/std/text_encoding/requirements.cc: Likewise.
 424
 425 2024-03-25  Jonathan Wakely  <jwakely@redhat.com>
 426
 427         * testsuite/std/text_encoding/requirements.cc: #undef the
 428         correct macro.
 429
 430 2024-03-23  Jonathan Wakely  <jwakely@redhat.com>
 431
 432         * include/std/format (formatter): Disable specializations that
 433         would allow sequences of narrow characters to be formatted as
 434         wchar_t without conversion, as per LWG 3944.
 435         * testsuite/std/format/formatter/lwg3944.cc: New test.
 436
 437 2024-03-23  Jonathan Wakely  <jwakely@redhat.com>
 438
 439         * include/bits/utility.h (__is_in_place_index_v): New variable
 440         template.
 441         * include/std/variant (__not_in_place_tag): Define in terms of
 442         variable templates not a class template.
 443
 444 2024-03-23  Jonathan Wakely  <jwakely@redhat.com>
 445
 446         PR libstdc++/114400
 447         * include/std/string_view (operator==): Use std::type_identity_t
 448         in C++20 instead of our own __type_identity_t.
 449
 450 2024-03-22  Jonathan Wakely  <jwakely@redhat.com>
 451
 452         PR libstdc++/114401
 453         * include/bits/hashtable.h (_Hashtable::_M_reinsert_node): Call
 454         release() on node handle instead of just zeroing its pointer.
 455         (_Hashtable::_M_reinsert_node_multi): Likewise.
 456         (_Hashtable::_M_merge_unique): Likewise.
 457         (_Hashtable::_M_merge_multi): Likewise.
 458         * include/bits/node_handle.h (_Node_handle_common::release()):
 459         New member function.
 460         (_Node_handle_common::_Optional_alloc::_M_empty): Remove
 461         unnecessary union member.
 462         (_Node_handle_common): Declare _Hashtable as a friend.
 463         * include/bits/stl_tree.h (_Rb_tree::_M_reinsert_node_unique):
 464         Call release() on node handle instead of just zeroing its
 465         pointer.
 466         (_Rb_tree::_M_reinsert_node_equal): Likewise.
 467         (_Rb_tree::_M_reinsert_node_hint_unique): Likewise.
 468         (_Rb_tree::_M_reinsert_node_hint_equal): Likewise.
 469         * testsuite/23_containers/multiset/modifiers/114401.cc: New test.
 470         * testsuite/23_containers/set/modifiers/114401.cc: New test.
 471         * testsuite/23_containers/unordered_multiset/modifiers/114401.cc: New test.
 472         * testsuite/23_containers/unordered_set/modifiers/114401.cc: New test.
 473
 474 2024-03-22  Jonathan Wakely  <jwakely@redhat.com>
 475
 476         PR libstdc++/113841
 477         * include/bits/allocator.h (allocator<cv T>): Add default
 478         constructor to partial specializations for cv-qualified types.
 479         * include/bits/stl_vector.h (_Vector_impl::_Vector_impl()):
 480         Constrain so that it's only present if the allocator is default
 481         constructible.
 482         * include/bits/stl_bvector.h (_Bvector_impl::_Bvector_impl()):
 483         Likewise.
 484         * testsuite/23_containers/vector/cons/113841.cc: New test.
 485
 486 2024-03-22  Jonathan Wakely  <jwakely@redhat.com>
 487
 488         * include/bits/stl_construct.h (destroy_at, construct_at): Guard
 489         with feature test macros instead of just __cplusplus.
 490
 491 2024-03-22  Jonathan Wakely  <jwakely@redhat.com>
 492
 493         * include/bits/version.def (generator, tuple_like): Move earlier
 494         in the file.
 495         * include/bits/version.h: Regenerate.
 496
 497 2024-03-22  Jonathan Wakely  <jwakely@redhat.com>
 498
 499         PR libstdc++/114394
 500         * include/std/functional (bind): Use __invoke_result_t instead
 501         of result_of::type.
 502         * include/std/type_traits (__invoke_result_t): New alias
 503         template.
 504         * testsuite/20_util/bind/ref_neg.cc: Adjust prune pattern.
 505
 506 2024-03-20  François Dumont  <fdumont@gcc.gnu.org>
 507
 508         * include/bits/version.def (null_iterators): Remove extra_cond.
 509         * include/bits/version.h: Regenerate.
 510
 511 2024-03-19  Jonathan Wakely  <jwakely@redhat.com>
 512
 513         PR libstdc++/114359
 514         * include/bits/random.tcc (binomial_distribution::param_type):
 515         Ensure arithmetic is done as type double.
 516         * testsuite/26_numerics/random/binomial_distribution/114359.cc: New test.
 517
 518 2024-03-19  Jonathan Wakely  <jwakely@redhat.com>
 519
 520         PR libstdc++/101228
 521         * include/pstl/parallel_backend_tbb.h (TBB_SUPPRESS_DEPRECATED_MESSAGES):
 522         Define before including <tbb/task.h> then undef afterwards.
 523
 524 2024-03-19  Jonathan Wakely  <jwakely@redhat.com>
 525
 526         * include/Makefile.am [MAINTAINER_MODE]: Add target to
 527         automatically update <bits/version.h>.
 528         * include/Makefile.in: Regenerate.
 529
 530 2024-03-19  Jonathan Wakely  <jwakely@redhat.com>
 531
 532         * doc/xml/manual/build_hacking.xml: Document generated files.
 533         Update list of convenience libraries and sub-directories under
 534         the src directory.
 535         * doc/html/*: Regenerate.
 536
 537 2024-03-19  Jonathan Wakely  <jwakely@redhat.com>
 538
 539         * include/bits/text_encoding-data.h: Regenerate.
 540         * include/bits/unicode-data.h: Regenerate.
 541         * scripts/gen_text_encoding_data.py: Fix header of generated
 542         file to name the correct script.
 543
 544 2024-03-19  Jonathan Wakely  <jwakely@redhat.com>
 545
 546         * testsuite/util/pstl/test_utils.h: Fix typos in comments.
 547
 548 2024-03-19  Jonathan Wakely  <jwakely@redhat.com>
 549
 550         PR libstdc++/114367
 551         * include/bits/stl_bvector.h (_M_allocate): Use allocator's
 552         construct function to begin lifetime of words.
 553
 554 2024-03-19  Iain Sandoe  <iain@sandoe.co.uk>
 555
 556         * testsuite/lib/dg-options.exp (atomic_link_flags): Emit a -B
 557         option for the path to the uninstalled libatomic.
 558
 559 2024-03-19  Iain Sandoe  <iain@sandoe.co.uk>
 560
 561         * testsuite/lib/libstdc++.exp (v3_target_compile): Instead of
 562         /dev/null, use a temporary file for test executables on Darwin.
 563
 564 2024-03-18  François Dumont  <fdumont@gcc.gnu.org>
 565
 566         * include/debug/safe_iterator.tcc (_Safe_iterator<>::_M_can_advance):
 567         Accept 0 offset advance on value-initialized iterator.
 568         * testsuite/23_containers/vector/debug/n3644.cc: New test case.
 569
 570 2024-03-18  François Dumont  <fdumont@gcc.gnu.org>
 571
 572         * include/debug/safe_local_iterator.tcc
 573         (_Safe_local_iterator::_M_valid_range): Add _M_value_initialized and
 574         _M_singular checks.
 575         * testsuite/23_containers/unordered_set/debug/114316.cc: New test case.
 576
 577 2024-03-17  François Dumont  <fdumont@gcc.gnu.org>
 578
 579         PR libstdc++/114316
 580         * include/debug/safe_iterator.tcc (_Safe_iterator<>::_M_valid_range):
 581         First check if both iterators are value-initialized before checking if
 582         singular.
 583         * testsuite/23_containers/set/debug/114316.cc: New test case.
 584         * testsuite/23_containers/vector/debug/114316.cc: New test case.
 585
 586 2024-03-14  Jonathan Wakely  <jwakely@redhat.com>
 587
 588         PR libstdc++/114325
 589         * include/std/format (_Scanner::_M_scan): Pass correct length to
 590         __to_chars_10_impl.
 591         * testsuite/std/format/functions/format.cc: Check negative
 592         integers with empty format-spec.
 593
 594 2024-03-14  Jonathan Wakely  <jwakely@redhat.com>
 595
 596         * include/bits/stl_algo.h (find_end, all_of, none_of, any_of)
 597         (find_if_not, is_partitioned, partition_point, remove)
 598         (remove_if, unique, lower_bound, upper_bound, equal_range)
 599         (binary_search, includes, is_sorted, is_sorted_until, minmax)
 600         (minmax_element, is_permutation, clamp, find_if, find_first_of)
 601         (adjacent_find, count, count_if, search, search_n, min_element)
 602         (max_element): Add nodiscard attribute.
 603         * include/bits/stl_algobase.h (min, max, lower_bound, equal)
 604         (lexicographical_compare, lexicographical_compare_three_way)
 605         (mismatch): Likewise.
 606         * include/bits/stl_heap.h (is_heap, is_heap_until): Likewise.
 607         * testsuite/25_algorithms/equal/debug/1_neg.cc: Add dg-warning.
 608         * testsuite/25_algorithms/equal/debug/2_neg.cc: Likewise.
 609         * testsuite/25_algorithms/equal/debug/3_neg.cc: Likewise.
 610         * testsuite/25_algorithms/find_first_of/concept_check_1.cc:
 611         Likewise.
 612         * testsuite/25_algorithms/is_permutation/2.cc: Likewise.
 613         * testsuite/25_algorithms/lexicographical_compare/71545.cc:
 614         Likewise.
 615         * testsuite/25_algorithms/lower_bound/33613.cc: Likewise.
 616         * testsuite/25_algorithms/lower_bound/debug/irreflexive.cc:
 617         Likewise.
 618         * testsuite/25_algorithms/lower_bound/debug/partitioned_neg.cc:
 619         Likewise.
 620         * testsuite/25_algorithms/lower_bound/debug/partitioned_pred_neg.cc:
 621         Likewise.
 622         * testsuite/25_algorithms/minmax/3.cc: Likewise.
 623         * testsuite/25_algorithms/search/78346.cc: Likewise.
 624         * testsuite/25_algorithms/search_n/58358.cc: Likewise.
 625         * testsuite/25_algorithms/unique/1.cc: Likewise.
 626         * testsuite/25_algorithms/unique/11480.cc: Likewise.
 627         * testsuite/25_algorithms/upper_bound/33613.cc: Likewise.
 628         * testsuite/25_algorithms/upper_bound/debug/partitioned_neg.cc:
 629         Likewise.
 630         * testsuite/25_algorithms/upper_bound/debug/partitioned_pred_neg.cc:
 631         Likewise.
 632         * testsuite/ext/concept_checks.cc: Likewise.
 633         * testsuite/ext/is_heap/47709.cc: Likewise.
 634         * testsuite/ext/is_sorted/cxx0x.cc: Likewise.
 635
 636 2024-03-14  xndcn  <xndchn@gmail.com>
 637
 638         * include/bits/atomic_base.h (__atomic_float::__atomic_float(Fp)):
 639         Clear padding.
 640         * testsuite/29_atomics/atomic_float/compare_exchange_padding.cc:
 641         New test.
 642
 643 2024-03-14  Jonathan Wakely  <jwakely@redhat.com>
 644
 645         PR libstdc++/66146
 646         * doc/xml/manual/status_cxx2011.xml: Remove mention of Linux in
 647         note about std::call_once.
 648         * doc/xml/manual/status_cxx2014.xml: Likewise.
 649         * doc/xml/manual/status_cxx2017.xml: Likewise.
 650         * doc/html/manual/status.html: Regenerate.
 651
 652 2024-03-14  Jonathan Wakely  <jwakely@redhat.com>
 653
 654         * doc/xml/manual/status_cxx2023.xml: Update C++23 status table.
 655         * doc/html/manual/status.html: Regenerate.
 656         * include/bits/version.def: Fix typo in comment.
 657
 658 2024-03-13  Jonathan Wakely  <jwakely@redhat.com>
 659
 660         * testsuite/libstdc++-prettyprinters/cxx11.cc: Move custom_cat
 661         to namespace scope.
 662
 663 2024-03-13  Jonathan Wakely  <jwakely@redhat.com>
 664
 665         * doc/xml/manual/debug.xml: Improve docs on debug builds and
 666         using ASan. Mention _GLIBCXX_ASSERTIONS. Reorder sections to put
 667         the most relevant ones first.
 668         * doc/xml/manual/using.xml: Add comma.
 669         * doc/html/*: Regenerate.
 670
 671 2024-03-13  Jonathan Wakely  <jwakely@redhat.com>
 672
 673         * doc/xml/manual/debug.xml: Document that concept checking might
 674         be removed in future.
 675         * doc/xml/manual/extensions.xml: Likewise.
 676
 677 2024-03-09  Jonathan Wakely  <jwakely@redhat.com>
 678
 679         PR libstdc++/114240
 680         * include/bits/chrono_io.h (_Parser::operator()): Assume
 681         hours(0) for a time_point, so that a time is not required
 682         to be present.
 683         * testsuite/std/time/parse/114240.cc: New test.
 684
 685 2024-03-09  Jonathan Wakely  <jwakely@redhat.com>
 686
 687         PR libstdc++/114279
 688         * include/bits/chrono_io.h (_Parser::_M_is_leap_second): New
 689         data member.
 690         (_Parser::_M_reserved): Reserve padding bits for future use.
 691         (_Parser::operator()): Set _M_is_leap_second if %S reads 60s.
 692         (from_stream): Only allow _M_is_leap_second for utc_time and
 693         local_time. Adjust arithmetic for utc_time so that leap seconds
 694         are preserved. Use time_point_cast to convert to a possibly
 695         lower-precision result type.
 696         * testsuite/std/time/parse.cc: Move to ...
 697         * testsuite/std/time/parse/parse.cc: ... here.
 698         * testsuite/std/time/parse/114279.cc: New test.
 699
 700 2024-03-07  Jonathan Wakely  <jwakely@redhat.com>
 701
 702         * include/bits/chrono_io.h (_Parser::operator()): Use
 703         std::from_chars to parse fractional seconds.
 704
 705 2024-03-07  Jonathan Wakely  <jwakely@redhat.com>
 706
 707         PR libstdc++/114244
 708         * include/bits/chrono_io.h (_Parser::operator()): Remove
 709         redundant uses of duration_cast. Use chrono::round to convert
 710         long double value to durations with integer representations.
 711         Check represenation type when deciding whether to skip parsing
 712         fractional seconds.
 713         * testsuite/20_util/duration/114244.cc: New test.
 714         * testsuite/20_util/duration/io.cc: Check that a floating-point
 715         duration with ratio<1> precision can be parsed.
 716
 717 2024-03-07  Jonathan Wakely  <jwakely@redhat.com>
 718
 719         PR libstdc++/114103
 720         * include/bits/version.def (atomic_lock_free_type_aliases): Add
 721         extra_cond to check for at least one always-lock-free type.
 722         * include/bits/version.h: Regenerate.
 723         * include/std/atomic (atomic_signed_lock_free)
 724         (atomic_unsigned_lock_free): Only use always-lock-free types.
 725         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): Don't use
 726         atomic counter if lock-free aliases aren't available.
 727         * testsuite/29_atomics/atomic/lock_free_aliases.cc: XFAIL for
 728         targets without lock-free word-size compare_exchange.
 729
 730 2024-03-07  Jonathan Wakely  <jwakely@redhat.com>
 731
 732         * include/std/chrono (__get_leap_second_info): Update expiry
 733         time for hardcoded list of leap seconds.
 734         * testsuite/std/time/tzdb/leap_seconds.cc: Update comment.
 735
 736 2024-03-07  Jonathan Wakely  <jwakely@redhat.com>
 737
 738         * testsuite/23_containers/deque/allocator/default_init.cc: Use
 739         std::memset instead of __builtin_memset.
 740         * testsuite/23_containers/forward_list/allocator/default_init.cc:
 741         Likewise.
 742         * testsuite/23_containers/list/allocator/default_init.cc:
 743         Likewise.
 744         * testsuite/23_containers/map/allocator/default_init.cc:
 745         Likewise.
 746         * testsuite/23_containers/set/allocator/default_init.cc:
 747         Likewise.
 748         * testsuite/23_containers/unordered_map/allocator/default_init.cc:
 749         Likewise.
 750         * testsuite/23_containers/unordered_set/allocator/default_init.cc:
 751         Likewise.
 752         * testsuite/23_containers/vector/allocator/default_init.cc:
 753         Likewise.
 754         * testsuite/23_containers/vector/bool/allocator/default_init.cc:
 755         Likewise.
 756         * testsuite/29_atomics/atomic/compare_exchange_padding.cc:
 757         Likewise.
 758         * testsuite/util/atomic/wait_notify_util.h: Likewise.
 759
 760 2024-03-07  Jonathan Wakely  <jwakely@redhat.com>
 761
 762         * include/std/format (_Arg_store::_S_make_elt): Add two
 763         static_assert checks to give more user-friendly error messages.
 764         * testsuite/lib/prune.exp (libstdc++-dg-prune): Prune another
 765         form of "in requirements with" note.
 766         * testsuite/std/format/arguments/args_neg.cc: Check for
 767         user-friendly diagnostics for non-formattable types.
 768         * testsuite/std/format/string_neg.cc: Likewise.
 769
 770 2024-03-04  Jonathan Wakely  <jwakely@redhat.com>
 771
 772         PR libstdc++/114147
 773         * include/std/tuple (tuple::tuple(allocator_arg_t, const Alloc&)):
 774         Add missing overload of allocator-extended default constructor.
 775         (tuple<T1,T2>::tuple(allocator_arg_t, const Alloc&)): Likewise.
 776         * testsuite/20_util/tuple/cons/114147.cc: New test.
 777
 778 2024-02-29  Jonathan Wakely  <jwakely@redhat.com>
 779
 780         * include/std/format (basic_format_arg::handle::__maybe_const_t):
 781         Fix condition to check if const type is formattable.
 782         (basic_format_arg::handle::handle(T&)): Remove redundant
 783         static_assert.
 784         * testsuite/std/format/formatter/basic.cc: New test.
 785
 786 2024-02-29  Jonathan Wakely  <jwakely@redhat.com>
 787
 788         PR libstdc++/113960
 789         * include/bits/stl_algobase.h (__is_byte_iter): Replace with ...
 790         (__memcmp_ordered_with): New concept.
 791         (lexicographical_compare_three_way): Use __memcmp_ordered_with
 792         instead of __is_byte_iter. Use correct length for memcmp.
 793         * testsuite/25_algorithms/lexicographical_compare_three_way/113960.cc:
 794         New test.
 795
 796 2024-02-28  Jonathan Wakely  <jwakely@redhat.com>
 797
 798         PR libstdc++/114152
 799         * include/experimental/scope (scope_exit scope_fail): Make
 800         destructor unconditionally noexcept.
 801         (scope_sucess): Fix noexcept-specifier.
 802         * testsuite/experimental/scopeguard/114152.cc: New test.
 803
 804 2024-02-28  Jonathan Wakely  <jwakely@redhat.com>
 805
 806         * doc/xml/manual/appendix_contributing.xml: Change URLs to use
 807         https.
 808         * doc/html/manual/*: Regenerate.
 809
 810 2024-02-28  Jonathan Wakely  <jwakely@redhat.com>
 811
 812         * doc/xml/manual/appendix_contributing.xml: Replace outdated
 813         info on ChangeLog entries.
 814         * doc/html/manual/appendix_contributing.html: Regenerate.
 815
 816 2024-02-28  Jonathan Wakely  <jwakely@redhat.com>
 817
 818         * include/bits/stl_bvector.h (vector<bool, A>::at): Add
 819         nodiscard.
 820         * include/bits/stl_vector.h (vector<T, A>::at): Likewise.
 821         (operator==, operator<=>, operator<, operator!=, operator>)
 822         (operator<=, operator>=): Likewise.
 823         * include/debug/vector (operator==, operator<=>, operator<)
 824         (operator!=, operator>, operator<=, operator>=): Likewise.
 825         * testsuite/23_containers/vector/nodiscard.cc: New test.
 826
 827 2024-02-28  Jonathan Wakely  <jwakely@redhat.com>
 828
 829         * include/bits/atomic_base.h (operator|, operator&): Add
 830         noexcept.
 831         * include/bits/fs_fwd.h (operator&, operator|, operator^)
 832         (operator~): Add nodiscard to overloads for copy_options, perms,
 833         perm_options, and directory_options.
 834         * include/bits/ios_base.h (operator&, operator|, operator^)
 835         (operator~): Add nodiscard and noexcept to overloads for
 836         _Ios_Fmtflags, _Ios_Openmode, and _Ios_Iostate.
 837         (operator|=, operator&=, operator^=): Add constexpr for C++14.
 838         * include/bits/regex_constants.h (operator&, operator|, operator^)
 839         (operator~): Add nodiscard and noexcept to overloads for
 840         syntax_option_type and match_flag_type.
 841         (operator|=, operator&=, operator^=): Add noexcept.
 842         * include/std/charconv (operator&, operator|, operator^)
 843         (operator~): Add nodiscard to overloads for chars_format.
 844         * include/std/future (operator&, operator|, operator^)
 845         (operator~): Add nodiscard for overloads for launch.
 846         (operator&=, operator|=, operator^=): Add constexpr for C++14.
 847         * include/experimental/bits/fs_fwd.h  (operator&, operator|)
 848         (operator^, operator~): Add nodiscard to overloads for
 849         copy_options, perms, and directory_options.
 850         * testsuite/27_io/ios_base/types/fmtflags/bitmask_operators.cc:
 851         Add dg-warning for nodiscard warnings.
 852         * testsuite/27_io/ios_base/types/iostate/bitmask_operators.cc:
 853         Likewise.
 854         * testsuite/27_io/ios_base/types/openmode/bitmask_operators.cc:
 855         Likewise.
 856         * testsuite/27_io/filesystem/operations/bitmask_types.cc:
 857         New test.
 858
 859 2024-02-28  Jonathan Wakely  <jwakely@redhat.com>
 860
 861         * testsuite/27_io/basic_ostream/print/1.cc: Check error
 862         handling.
 863         * testsuite/27_io/print/1.cc: Likewise.
 864
 865 2024-02-28  Jonathan Wakely  <jwakely@redhat.com>
 866
 867         * include/std/ostream (vprint_unicode) [__CYGWIN__]: Use POSIX
 868         code path for Cygwin instead of Windows.
 869         * include/std/print (vprint_unicode) [__CYGWIN__]: Likewise.
 870         * testsuite/27_io/basic_ostream/print/1.cc: Only add -lstdc++exp
 871         for *-*-mingw* targets.
 872         * testsuite/27_io/print/1.cc: Likewise.
 873
 874 2024-02-28  Jonathan Wakely  <jwakely@redhat.com>
 875
 876         * include/bits/alloc_traits.h: Include <bits/stl_iterator.h> for
 877         __make_move_if_noexcept_iterator.
 878
 879 2024-02-28  Jonathan Wakely  <jwakely@redhat.com>
 880
 881         * include/std/stacktrace: Add nodiscard attribute to all
 882         functions without side effects.
 883
 884 2024-02-20  François Dumont  <fdumont@gcc.gnu.org>
 885
 886         * include/bits/stl_algobase.h (std::__niter_wrap): Add a call to
 887         std::__niter_base on res iterator.
 888
 889 2024-02-19  Iain Sandoe  <iain@sandoe.co.uk>
 890             Jonathan Wakely  <jwakely@redhat.com>
 891
 892         PR target/112397
 893         * configure: Regenerate.
 894         * configure.ac: Detect if we are building for Darwin.
 895         * libsupc++/Makefile.am: If we are building for Darwin, then
 896         suppress hot/cold partitioning for the array allocators.
 897         * libsupc++/Makefile.in: Regenerated.
 898
 899 2024-02-17  François Dumont  <fdumont@gcc.gnu.org>
 900
 901         * include/bits/stl_algobase.h (std::__niter_base): Redefine the overload
 902         definitions for __gnu_debug::_Safe_iterator.
 903         * include/debug/safe_iterator.tcc (std::__niter_base): Adapt declarations.
 904
 905 2024-02-16  Jonathan Wakely  <jwakely@redhat.com>
 906
 907         PR libstdc++/87744
 908         PR libstdc++/113961
 909         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
 910         line number.
 911
 912 2024-02-16  Jonathan Wakely  <jwakely@redhat.com>
 913
 914         PR libstdc++/87744
 915         PR libstdc++/113931
 916         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
 917         line number.
 918
 919 2024-02-16  Jonathan Wakely  <jwakely@redhat.com>
 920
 921         * doc/xml/manual/debug_mode.xml: Update docs for backtraces.
 922         * doc/html/manual/debug_mode_using.html: Regenerate.
 923
 924 2024-02-16  Jonathan Wakely  <jwakely@redhat.com>
 925
 926         * doc/xml/manual/test.xml: Fix spelling of <envar> elements.
 927         * doc/html/manual/test.html: Regenerate.
 928
 929 2024-02-15  Jonathan Wakely  <jwakely@redhat.com>
 930
 931         PR libstdc++/113806
 932         * include/std/bitset (bitset::operator>>=): Remove redundant
 933         call to _M_do_sanitize.
 934
 935 2024-02-15  Jonathan Wakely  <jwakely@redhat.com>
 936
 937         PR libstdc++/113807
 938         * include/std/bitset (bitset::set()): Use memset instead of a
 939         loop over the individual words.
 940
 941 2024-02-15  Jonathan Wakely  <jwakely@redhat.com>
 942
 943         PR libstdc++/113811
 944         * include/bits/stl_algo.h (__rotate): Use unsigned values for
 945         division.
 946
 947 2024-02-15  Jonathan Wakely  <jwakely@redhat.com>
 948
 949         PR libstdc++/99117
 950         * include/std/valarray (valarray::operator=(const _Expr&)):
 951         Use loop to copy instead of __valarray_copy with _Array.
 952         * testsuite/26_numerics/valarray/99117.cc: New test.
 953
 954 2024-02-15  Jonathan Wakely  <jwakely@redhat.com>
 955
 956         * src/c++20/tzdata.zi: Import new file from 2024a release.
 957         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds)
 958         Update expiry date for leap seconds list.
 959
 960 2024-02-15  Jonathan Wakely  <jwakely@redhat.com>
 961
 962         PR libstdc++/87744
 963         * include/bits/random.h [!__SIZEOF_INT128__] (_Select_uint_least_t):
 964         Define specialization for 64-bit generators with
 965         non-power-of-two modulus and large constants.
 966         (__mod): Use if constexpr unconditionally.
 967         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
 968         line number.
 969         * testsuite/26_numerics/random/linear_congruential_engine/87744.cc:
 970         New test.
 971
 972 2024-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
 973
 974         * doc/xml/manual/status_cxx2023.xml: Fix C++ item p2442 to be
 975         version 1.
 976         * doc/html/manual/status.html: Regenerate.
 977
 978 2024-02-12  Paul Keir  <paul.keir@uws.ac.uk>
 979
 980         PR libstdc++/113294
 981         * include/bits/basic_string.h (basic_string::operator=): Use
 982         _M_use_local_data() instead of _M_local_buf on the moved-from
 983         string.
 984         * testsuite/21_strings/basic_string/modifiers/constexpr.cc
 985         (test_move): New test.
 986
 987 2024-02-09  Ken Matsui  <kmatsui@gcc.gnu.org>
 988
 989         * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_IS_SAME):
 990         Removed.
 991         * include/std/type_traits (is_same): Use
 992         _GLIBCXX_USE_BUILTIN_TRAIT instead of
 993         _GLIBCXX_HAVE_BUILTIN_IS_SAME.
 994         (is_same_v): Likewise.
 995
 996 2024-02-08  Jonathan Wakely  <jwakely@redhat.com>
 997
 998         * include/bits/shared_ptr_atomic.h: Fix typo in comment.
 999
1000 2024-02-08  Jonathan Wakely  <jwakely@redhat.com>
1001
1002         PR libstdc++/100147
1003         * include/bits/gslice.h (operator=): Add comment about lack of
1004         self-assignment check.
1005
1006 2024-02-08  Jonathan Wakely  <jwakely@redhat.com>
1007
1008         * include/tr2/type_traits (bases, direct_bases): Use
1009         __has_builtin to check if required built-ins are supported.
1010
1011 2024-02-07  Patrick Palka  <ppalka@redhat.com>
1012
1013         PR testsuite/113710
1014         PR c++/113814
1015         * include/bits/stl_pair.h (tuple_element): Add forward
1016         declaration of the partial specialization for tuple.
1017
1018 2024-02-06  Torbjörn SVENSSON  <torbjorn.svensson@foss.st.com>
1019
1020         * testsuite/lib/libstdc++.exp: Use "nul" for Windows, "/dev/null"
1021         for other environments.
1022
1023 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
1024
1025         * include/std/format (__format::_Spec::_M_reserved): Define new
1026         bit-field members to reserve padding bits for future extensions.
1027
1028 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
1029
1030         * src/experimental/Makefile.am: Use libstdc++fsconvenience.a
1031         instead of libstdc++fs.a.
1032         * src/experimental/Makefile.in: Regenerate.
1033         * src/filesystem/Makefile.am: Build libstdc++fsconvenience.a as
1034         well.
1035         * src/filesystem/Makefile.in: Regenerate.
1036
1037 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
1038
1039         * include/bits/text_encoding-data.h: Regenerate.
1040         * include/bits/unicode-data.h: Regenerate.
1041         * scripts/gen_text_encoding_data.py: Add copyright and license
1042         text to the output.
1043
1044 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
1045
1046         PR libstdc++/113335
1047         * include/bits/std_function.h (__function_guide_helper): Add
1048         partial specialization for explicit object member functions, as
1049         per LWG 3617.
1050         * testsuite/20_util/function/cons/deduction_c++23.cc: Check
1051         explicit object member functions.
1052         * testsuite/30_threads/packaged_task/cons/deduction_c++23.cc:
1053         Likewise.
1054
1055 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
1056
1057         * testsuite/17_intro/names.cc [_AIX]: Undefine "u".
1058
1059 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
1060
1061         * include/experimental/internet (network_v6::network): Define.
1062         (network_v6::hosts): Finish implementing.
1063         (network_v6::to_string): Do not concatenate std::string to
1064         arbitrary std::basic_string specialization.
1065         * testsuite/experimental/net/internet/network/v6/cons.cc: New
1066         test.
1067
1068 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
1069
1070         PR libstdc++/90276
1071         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: Fix
1072         comparison function to use less-than instead of equality.
1073
1074 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
1075
1076         PR libstdc++/90276
1077         * testsuite/util/pstl/test_utils.h (reverse_invoker): Do not use
1078         perfect forwarding for iterator arguments.
1079
1080 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
1081
1082         * include/std/string_view (basic_string_view(R&&)): Remove
1083         constraint that traits_type must be the same, as per LWG 3857.
1084         * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc:
1085         Explicit conversion between different specializations should be
1086         allowed.
1087         * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc:
1088         Likewise.
1089
1090 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
1091
1092         * include/std/syncstream (basic_osyncstream::operator=): Remove
1093         noexcept, as per LWG 3867.
1094
1095 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
1096
1097         * include/std/generator (promise_type::yield_value): Remove
1098         noexcept from fourth overload, as per LWG 3894.
1099
1100 2024-02-01  Patrick Palka  <ppalka@redhat.com>
1101
1102         PR libstdc++/113309
1103         PR libstdc++/109203
1104         * include/bits/ranges_util.h (__detail::__pair_like): Don't
1105         define in C++23 mode.
1106         (__detail::__pair_like_convertible_from): Adjust as per P2165R4.
1107         (__detail::__is_subrange<subrange>): Moved from <ranges>.
1108         (__detail::__is_tuple_like_v<subrange>): Likewise.
1109         * include/bits/stl_iterator.h: Include <bits/utility.h> for
1110         C++23.
1111         (__different_from): Move to <concepts>.
1112         (__iter_key_t): Adjust for C++23 as per P2165R4.
1113         (__iter_val_t): Likewise.
1114         * include/bits/stl_pair.h (pair, array): Forward declare.
1115         (get): Forward declare all overloads relevant to P2165R4
1116         tuple-like constructors.
1117         (__is_tuple_v): Define for C++23.
1118         (__is_tuple_like_v): Define for C++23.
1119         (__tuple_like): Define for C++23 as per P2165R4.
1120         (__pair_like): Define for C++23 as per P2165R4.
1121         (__eligibile_tuple_like): Define for C++23.
1122         (__eligibile_pair_like): Define for C++23.
1123         (pair::_S_constructible_from_pair_like): Define for C++23.
1124         (pair::_S_convertible_from_pair_like): Define for C++23.
1125         (pair::_S_dangles_from_pair_like): Define for C++23.
1126         (pair::pair): Define overloads taking a tuple-like type for
1127         C++23 as per P2165R4.
1128         (pair::_S_assignable_from_tuple_like): Define for C++23.
1129         (pair::_S_const_assignable_from_tuple_like): Define for C++23.
1130         (pair::operator=): Define overloads taking a tuple-like type for
1131         C++23 as per P2165R4.
1132         * include/bits/utility.h (ranges::__detail::__is_subrange):
1133         Moved from <ranges>.
1134         * include/bits/version.def (tuple_like): Define for C++23.
1135         * include/bits/version.h: Regenerate.
1136         * include/std/concepts (__different_from): Moved from
1137         <bits/stl_iterator.h>.
1138         (ranges::__swap::__adl_swap): Clarify which __detail namespace.
1139         * include/std/map (__cpp_lib_tuple_like): Define C++23.
1140         * include/std/ranges (__detail::__is_subrange): Moved to
1141         <bits/utility.h>.
1142         (__detail::__is_subrange<subrange>): Moved to <bits/ranges_util.h>
1143         (__detail::__has_tuple_element): Adjust for C++23 as per P2165R4.
1144         (__detail::__tuple_or_pair): Remove as per P2165R4.  Replace all
1145         uses with plain tuple as per P2165R4.
1146         * include/std/tuple (__cpp_lib_tuple_like): Define for C++23.
1147         (__tuple_like_tag_t): Define for C++23.
1148         (__tuple_cmp): Forward declare for C++23.
1149         (_Tuple_impl::_Tuple_impl): Define overloads taking
1150         __tuple_like_tag_t and a tuple-like type for C++23.
1151         (_Tuple_impl::_M_assign): Likewise.
1152         (tuple::__constructible_from_tuple_like): Define for C++23.
1153         (tuple::__convertible_from_tuple_like): Define for C++23.
1154         (tuple::__dangles_from_tuple_like): Define for C++23.
1155         (tuple::tuple): Define overloads taking a tuple-like type for
1156         C++23 as per P2165R4.
1157         (tuple::__assignable_from_tuple_like): Define for C++23.
1158         (tuple::__const_assignable_from_tuple_like): Define for C++23.
1159         (tuple::operator=): Define overloads taking a tuple-like type
1160         for C++23 as per P2165R4.
1161         (tuple::__tuple_like_common_comparison_category): Define for C++23.
1162         (tuple::operator<=>): Define overload taking a tuple-like type
1163         for C++23 as per P2165R4.
1164         (array, get): Forward declarations moved to <bits/stl_pair.h>.
1165         (tuple_cat): Constrain with __tuple_like for C++23 as per P2165R4.
1166         (apply): Likewise.
1167         (make_from_tuple): Likewise.
1168         (__tuple_like_common_reference): Define for C++23.
1169         (basic_common_reference): Adjust as per P2165R4.
1170         (__tuple_like_common_type): Define for C++23.
1171         (common_type): Adjust as per P2165R4.
1172         * include/std/unordered_map (__cpp_lib_tuple_like): Define for
1173         C++23.
1174         * include/std/utility (__cpp_lib_tuple_like): Define for C++23.
1175         * testsuite/std/ranges/zip/1.cc (test01): Adjust to handle pair
1176         and 2-tuple interchangeably.
1177         (test05): New test.
1178         * testsuite/20_util/pair/p2165r4.cc: New test.
1179         * testsuite/20_util/tuple/p2165r4.cc: New test.
1180
1181 2024-02-01  Patrick Palka  <ppalka@redhat.com>
1182
1183         * include/bits/stl_pair.h (pair::_S_const_assignable): Define,
1184         factored out from ...
1185         (pair::operator=): ... the constraints of the const overloads.
1186
1187 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
1188
1189         * include/bits/version.tpl: Do not use def-file-line for each
1190         macro being defined.
1191         * include/bits/version.h: Regenerate.
1192
1193 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
1194
1195         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Adjust
1196         dg-error pattern.
1197         * testsuite/25_algorithms/copy_backward/debug/constexpr_neg.cc:
1198         Likewise.
1199         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
1200         Likewise.
1201         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_neg.cc:
1202         Likewise.
1203         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_pred_neg.cc:
1204         Likewise.
1205         * testsuite/25_algorithms/lower_bound/debug/constexpr_valid_range_neg.cc:
1206         Likewise.
1207         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_neg.cc:
1208         Likewise.
1209         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_pred_neg.cc:
1210         Likewise.
1211         * testsuite/25_algorithms/upper_bound/debug/constexpr_valid_range_neg.cc:
1212         Likewise.
1213
1214 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
1215
1216         * include/experimental/internet (network_v4::to_string()):
1217         Remove lambda and use of resize_and_overwrite.
1218
1219 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
1220
1221         * acinclude.m4 (GLIBCXX_CHECK_TEXT_ENCODING): Use <xlocale.h> if
1222         needed for newlocale.
1223         * configure: Regenerate.
1224         * src/c++26/text_encoding.cc: Use <xlocale.h>.
1225
1226 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
1227             Ewan Higgs  <ewan.higgs@gmail.com>
1228
1229         * include/bits/text_encoding-data.h: Regenerate.
1230         * scripts/gen_text_encoding_data.py: Add extra_aliases dict
1231         containing "ASCII".
1232         * testsuite/std/text_encoding/cons.cc: Check "ascii" is known.
1233
1234 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
1235
1236         * doc/xml/manual/using.xml: Update tables of supported headers.
1237         * doc/html/*: Regenerate.
1238
1239 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
1240
1241         * include/std/bitset (_Base_bitset::_M_do_to_ullong): Avoid
1242         -Wshift-count-overflow warning.
1243
1244 2024-01-30  Jonathan Wakely  <jwakely@redhat.com>
1245
1246         * testsuite/std/time/clock/gps/io.cc: Fix expected result in
1247         assertion and call test_format() from main.
1248
1249 2024-01-29  François Dumont  <fdumont@gcc.gnu.org>
1250
1251         * doc/xml/manual/debug_mode.xml: Link against libstdc++exp.a to use
1252         _GLIBCXX_DEBUG_BACKTRACE macro.
1253
1254 2024-01-24  Huanghui Nie  <nnnjkk@gmail.com>
1255             Théo Papadopoulo   <papadopoulo@gmail.com>
1256
1257         * include/bits/hashtable.h (_Hahstable<>::_M_remove_bucket_begin): Remove
1258         _M_before_begin check and cleanup implementation.
1259
1260 2024-01-22  Jonathan Wakely  <jwakely@redhat.com>
1261
1262         * testsuite/std/time/clock/file/io.cc: Fix expected result in
1263         assertion and call test_format() from main.
1264
1265 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
1266
1267         PR libstdc++/113500
1268         * include/bits/chrono_io.h (__formatter_chrono::_M_S): Fix
1269         printing of subseconds with floating-point rep.
1270         (__formatter_chrono::_M_format_to_ostream): Do not write
1271         time_point specializations directly to the ostream.
1272         (formatter<chrono::sys_time<D>, C>::parse): Do not allow an
1273         empty chrono-spec if the type fails to meet the constraints for
1274         writing to an ostream with operator<<.
1275         * testsuite/std/time/clock/file/io.cc: Check formatting
1276         non-integral times with empty chrono-specs.
1277         * testsuite/std/time/clock/gps/io.cc: Likewise.
1278         * testsuite/std/time/clock/utc/io.cc: Likewise.
1279         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
1280
1281 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
1282
1283         * include/bits/chrono.h (__file_clock::from_sys)
1284         (__file_clock::to_sys, __file_clock::_S_from_sys)
1285         (__file_clock::_S_to_sys): Use common_type for return type.
1286         * testsuite/std/time/clock/file/members.cc: Check round trip
1287         conversion for time with lower precision that seconds.
1288
1289 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
1290
1291         PR libstdc++/113512
1292         * include/std/format (__formatter_fp::format): Fix logic for
1293         alternate forms.
1294         * testsuite/std/format/functions/format.cc: Check buggy cases of
1295         alternate forms with g presentation type.
1296
1297 2024-01-20  Marek Polacek  <polacek@redhat.com>
1298
1299         PR c++/111410
1300         * include/std/ranges: Add #pragma to disable -Wdangling-reference with
1301         std::ranges::views::__adaptor::operator|.
1302
1303 2024-01-19  Jonathan Wakely  <jwakely@redhat.com>
1304
1305         * include/std/format (_Spec::_M_parse_fill_and_align): Do not
1306         use CTAD for _Utf32_view.
1307
1308 2024-01-19  Jonathan Wakely  <jwakely@redhat.com>
1309
1310         PR libstdc++/108822
1311         * include/std/tuple (__glibcxx_no_dangling_refs) [C++17]: Fix
1312         wrong fold-operator.
1313         * testsuite/20_util/tuple/dangling_ref.cc: Check tuples with one
1314         element and three elements. Check allocator-extended
1315         constructors.
1316
1317 2024-01-19  Patrick Palka  <ppalka@redhat.com>
1318
1319         * include/precompiled/stdc++.h [_GLIBCXX_HOSTED]: Include
1320         <print> and <text_encoding> for C++23 and C++26 respectively.
1321
1322 2024-01-18  Patrick Palka  <ppalka@redhat.com>
1323
1324         * include/bits/stl_pair.h [__cplusplus > 202002L]:
1325         Guard P2321R2 changes with __glibcxx_ranges_zip instead.
1326
1327 2024-01-18  Patrick Palka  <ppalka@redhat.com>
1328
1329         * include/std/tuple [__cplusplus > 202002L]: Guard P2321R2
1330         changes with __cpp_lib_ranges_zip instead.
1331
1332 2024-01-18  Patrick Palka  <ppalka@redhat.com>
1333
1334         PR libstdc++/109536
1335         * include/debug/safe_base.h (_Safe_sequence_base::_M_swap):
1336         Remove _GLIBCXX20_CONSTEXPR from non-inline member function.
1337         * include/debug/safe_iterator.h
1338         (_GLIBCXX20_CONSTEXPR_NON_LITERAL_SCOPE_BEGIN): Define.
1339         (_GLIBCXX20_CONSTEXPR_NON_LITERAL_SCOPE_END): Define.
1340         (_Safe_iterator::operator=): Use them around the code path that
1341         defines a variable of type __gnu_cxx::__scoped_lock.
1342         (_Safe_iterator::operator++): Likewise.
1343         (_Safe_iterator::operator--): Likewise.
1344         (_Safe_iterator::operator+=): Likewise.
1345         (_Safe_iterator::operator-=): Likewise.
1346         * testsuite/23_containers/vector/element_access/constexpr.cc
1347         (test_iterators): Test more iterator operations.
1348         * testsuite/23_containers/vector/bool/element_access/constexpr.cc
1349         (test_iterators): Likewise.
1350         * testsuite/std/ranges/adaptors/all.cc (test08) [_GLIBCXX_DEBUG]:
1351         Remove.
1352
1353 2024-01-18  Jonathan Wakely  <jwakely@redhat.com>
1354
1355         * include/bits/unicode.h (__charset_alias_match): Initialize
1356         __var_a and __var_b.
1357
1358 2024-01-18  Jonathan Wakely  <jwakely@redhat.com>
1359
1360         PR libstdc++/113450
1361         * testsuite/std/format/functions/format.cc: Use signed char
1362         instead of int8_t.
1363
1364 2024-01-17  Jonathan Wakely  <jwakely@redhat.com>
1365
1366         PR libstdc++/113318
1367         * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++26 directory.
1368         (GLIBCXX_CHECK_TEXT_ENCODING): Define.
1369         * config.h.in: Regenerate.
1370         * configure: Regenerate.
1371         * configure.ac: Use GLIBCXX_CHECK_TEXT_ENCODING.
1372         * include/Makefile.am: Add new headers.
1373         * include/Makefile.in: Regenerate.
1374         * include/bits/locale_classes.h (locale::encoding): Declare new
1375         member function.
1376         * include/bits/unicode.h (__charset_alias_match): New function.
1377         * include/bits/text_encoding-data.h: New file.
1378         * include/bits/version.def (text_encoding): Define.
1379         * include/bits/version.h: Regenerate.
1380         * include/std/text_encoding: New file.
1381         * src/Makefile.am: Add new subdirectory.
1382         * src/Makefile.in: Regenerate.
1383         * src/c++26/Makefile.am: New file.
1384         * src/c++26/Makefile.in: New file.
1385         * src/c++26/text_encoding.cc: New file.
1386         * src/experimental/Makefile.am: Include c++26 convenience
1387         library.
1388         * src/experimental/Makefile.in: Regenerate.
1389         * python/libstdcxx/v6/printers.py (StdTextEncodingPrinter): New
1390         printer.
1391         * scripts/gen_text_encoding_data.py: New file.
1392         * testsuite/22_locale/locale/encoding.cc: New test.
1393         * testsuite/ext/unicode/charset_alias_match.cc: New test.
1394         * testsuite/std/text_encoding/cons.cc: New test.
1395         * testsuite/std/text_encoding/members.cc: New test.
1396         * testsuite/std/text_encoding/requirements.cc: New test.
1397
1398 2024-01-17  Jonathan Wakely  <jwakely@redhat.com>
1399
1400         * include/bits/unicode.h (_Grapheme_cluster_view): Require view.
1401         Do not use CTAD for _Utf32_view.
1402         (__format_width, __truncate): Do not use CTAD.
1403         (enable_borrowed_range<_Utf_view<T, R>>): Define specialization.
1404         (enable_borrowed_range<_Grapheme_cluster_view<R>>): Likewise.
1405
1406 2024-01-17  Patrick Palka  <ppalka@redhat.com>
1407
1408         * include/std/ranges (views::_CartesianProduct::operator()):
1409         Adjust identity case as per P2540R1.
1410         * testsuite/std/ranges/cartesian_product/1.cc (test01):
1411         Adjust expected result of the identity case.
1412
1413 2024-01-15  Patrick Palka  <ppalka@redhat.com>
1414
1415         * include/std/variant (__detail::__variant::_Variadic_union):
1416         Add bool __trivially_destructible template parameter.
1417         (__detail::__variant::_Variadic_union::~_Variadic_union):
1418         Use __trivially_destructible in constraints instead.
1419         (__detail::__variant::_Variant_storage): Pass
1420         __trivially_destructible value to _Variadic_union.
1421
1422 2024-01-15  Patrick Palka  <ppalka@redhat.com>
1423
1424         * include/bits/stl_iterator.h (const_iterator): Define conversion
1425         operators as per P2836R1.
1426         * include/bits/version.def (ranges_as_const): Update value.
1427         * include/bits/version.h: Regenerate.
1428         * testsuite/24_iterators/const_iterator/1.cc (test04): New test.
1429         * testsuite/std/ranges/adaptors/as_const/1.cc: Adjust expected
1430         value of __cpp_lib_ranges_as_const.
1431         * testsuite/std/ranges/version_c++23.cc: Likewise.
1432
1433 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
1434
1435         PR libstdc++/108822
1436         * include/std/tuple (__assignable, __is_nothrow_assignable):
1437         Move pre-C++20 definitions adjacent to their use.
1438
1439 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
1440
1441         PR testsuite/113366
1442         * include/std/format (basic_format_arg): Use __formattable
1443         variable template instead of __format::__formattable_with
1444         concept.
1445
1446 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
1447
1448         * src/c++20/tzdata.zi: Import new file from 2023d release.
1449         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds)
1450         Update expiry date for leap seconds list.
1451
1452 2024-01-13  Jonathan Wakely  <jwakely@redhat.com>
1453
1454         PR libstdc++/108822
1455         * include/std/tuple (tuple): Add checks for dangling references.
1456         Reimplement constraints and constant expressions using C++20
1457         features.
1458         * include/std/type_traits [C++20]
1459         (__is_implicitly_default_constructible_v): Define.
1460         (__is_implicitly_default_constructible): Use variable template.
1461         * testsuite/20_util/tuple/dangling_ref.cc: New test.
1462
1463 2024-01-13  Patrick Palka  <ppalka@redhat.com>
1464
1465         PR libstdc++/108827
1466         PR libstdc++/111327
1467         * include/bits/version.def (bind_back): Define.
1468         * include/bits/version.h: Regenerate.
1469         * include/std/functional (_Bind_back): Define for C++23.
1470         (bind_back): Likewise.
1471         * testsuite/20_util/function_objects/bind_back/1.cc: New test
1472         (adapted from corresponding bind_front test).
1473         * testsuite/20_util/function_objects/bind_back/111327.cc: Likewise.
1474
1475 2024-01-13  Patrick Palka  <ppalka@redhat.com>
1476
1477         * include/std/functional (_Bind_front): Remove =default special
1478         member function declarations.
1479         (_Bind_front::operator()): Implement using C++23 deducing this
1480         when available.
1481         * testsuite/20_util/function_objects/bind_front/111327.cc:
1482         Adjust testcase to expect better errors in C++23 mode.
1483
1484 2024-01-13  Patrick Palka  <ppalka@redhat.com>
1485
1486         * include/std/ranges (views::__adaptor::operator|): Perform
1487         perfect forwarding of arguments.
1488         (views::__adaptor::_RangeAdaptor::operator()): Pass dummy
1489         first argument to _Partial.
1490         (views::__adaptor::_Partial::_Partial): Likewise.  Add dummy
1491         first parameter.
1492         (views::__adaptor::_Pipe::_Pipe): Perform perfect forwarding
1493         of arguments.
1494         (to): Pass dummy first argument to _Partial.
1495
1496 2024-01-13  Jonathan Wakely  <jwakely@redhat.com>
1497
1498         PR libstdc++/107466
1499         * include/bits/random.tcc (subtract_with_carry_engine::seed):
1500         Implement proposed resolution of LWG 4014.
1501         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
1502         line number.
1503         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/lwg3809.cc:
1504         Check for expected result of 64-bit engine with seed that
1505         doesn't fit in 32-bits.
1506
1507 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
1508
1509         PR libstdc++/113320
1510         * include/std/format (__format::_Runtime_format_string): Add
1511         constructor and disable copy operations.
1512         (basic_format_string(_Runtime_format_string)): Add noexcept and
1513         take parameter by value not rvalue reference.
1514         (runtime_format): Add noexcept.
1515         * testsuite/std/format/runtime_format.cc: Check noexcept. Check
1516         that construction is only possible from prvalues, not xvalues.
1517
1518 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
1519
1520         PR libstdc++/105505
1521         * include/bits/stl_pair.h (pair::pair(U1&&, U2&&)) [C++23]: Add
1522         default template arguments, as per P1951R1.
1523         * testsuite/20_util/pair/cons/default_tmpl_args.cc: New test.
1524
1525 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
1526
1527         * include/std/format (__format::_Arg_store): Fix PR number in
1528         comment. Simplify preprocessor code.
1529
1530 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
1531
1532         * doc/xml/manual/evolution.xml: Fix spelling.
1533         * doc/html/manual/api.html: Regenerate.
1534
1535 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
1536
1537         * doc/xml/manual/evolution.xml: Document addition of
1538         libstdc++exp.a.
1539         * doc/html/*: Regenerate.
1540
1541 2024-01-11  Marcus Haehnel  <marcus.haehnel@kernkonzept.com>
1542
1543         * libsupc++/eh_unex_handler.cc: Adjust definition type to
1544         declaration.
1545
1546 2024-01-11  Michael Levine  <mlevine55@bloomberg.net>
1547
1548         * include/std/ranges (__glibcxx_want_ranges_iota): Remove
1549         duplicate definition.
1550
1551 2024-01-11  François Dumont  <fdumont@gcc.gnu.org>
1552
1553         PR libstdc++/112477
1554         * src/c++11/debug.cc
1555         (_Safe_iterator_base::_M_attach): Reset _M_version to 0 if attaching to null
1556         sequence.
1557         (_Safe_iterator_base::_M_attach_single): Likewise.
1558         (_Safe_local_iterator_base::_M_attach): Likewise.
1559         (_Safe_local_iterator_base::_M_attach_single): Likewise.
1560         * testsuite/23_containers/map/debug/112477.cc: New test case.
1561
1562 2024-01-11  Patrick Palka  <ppalka@redhat.com>
1563
1564         * include/bits/move.h (__like_t): Define in C++23 mode.
1565         * include/std/ranges (views::__adaptor::Partial::operator()):
1566         Implement using C++23 deducing this when available.
1567         (views::__adaptor::_Pipe::operator()): Likewise.
1568         * testsuite/std/ranges/adaptors/100577.cc: Adjust testcase to
1569         accept new "no match for call" errors issued in C++23 mode.
1570         * testsuite/std/ranges/adaptors/lazy_split_neg.cc: Likewise.
1571
1572 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
1573
1574         * python/libstdcxx/v6/printers.py (StdIntegralConstantPrinter):
1575         Add printer for std::integral_constant.
1576         * testsuite/libstdc++-prettyprinters/cxx11.cc: Test it.
1577
1578 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
1579
1580         PR libstdc++/113258
1581         * libsupc++/new_opa.cc: Prefer to use posix_memalign if
1582         available.
1583
1584 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
1585
1586         * src/filesystem/ops-common.h (stat_type): Use using.
1587
1588 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
1589
1590         PR libstdc++/113250
1591         * src/c++17/fs_ops.cc (fs::equivalent): Use || instead of &&.
1592         * src/filesystem/ops.cc (fs::equivalent): Likewise.
1593         * testsuite/27_io/filesystem/operations/equivalent.cc: Handle
1594         error codes.
1595         * testsuite/experimental/filesystem/operations/equivalent.cc:
1596         Likewise.
1597
1598 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
1599
1600         * include/std/type_traits (is_compound): Do not use __not_.
1601         (is_compound_v): Use is_fundamental_v instead.
1602
1603 2024-01-11  Patrick Palka  <ppalka@redhat.com>
1604
1605         * include/bits/utility.h (_Nth_type): Use
1606         _GLIBCXX_USE_BUILTIN_TRAIT instead of __has_builtin.
1607
1608 2024-01-09  Jonathan Wakely  <jwakely@redhat.com>
1609
1610         * include/bits/unicode-data.h: Regenerate.
1611         * include/bits/unicode.h (_Utf_iterator::operator++()): Fix off
1612         by one error.
1613         (__incb_property): Add missing check for values before the
1614         first edge.
1615         (__is_extended_pictographic): Invert return values to fix
1616         copy&pasted logic.
1617         (_Grapheme_cluster_view::_Iterator): Remove second iterator
1618         member and find end of cluster lazily.
1619         * testsuite/ext/unicode/grapheme_view.cc: New test.
1620         * testsuite/ext/unicode/properties.cc: New test.
1621         * testsuite/ext/unicode/view.cc: New test.
1622
1623 2024-01-09  Andreas Schwab  <schwab@linux-m68k.org>
1624
1625         * scripts/extract_symvers.in: Require final colon to only match
1626         .dsynsym in the header of the dynamic symtab.
1627
1628 2024-01-09  Jonathan Wakely  <jwakely@redhat.com>
1629
1630         * include/bits/chrono_io.h (__formatter_chrono::_M_F): Simplify
1631         handling of string returned from std::format.
1632         (__formatter_chrono::_M_R_T): Likewise.
1633
1634 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
1635
1636         * include/bits/unicode.h (__null_sentinel): Remove.
1637         * testsuite/17_intro/names.cc: Add __null_sentinel.
1638
1639 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
1640
1641         * include/std/format (__format::_Runtime_format_string): Define
1642         new class template.
1643         (basic_format_string): Add non-consteval constructor for runtime
1644         format strings.
1645         (runtime_format): Define new function for C++26.
1646         * testsuite/std/format/runtime_format.cc: New test.
1647
1648 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
1649
1650         * include/bits/chrono_io.h (__formatter_chrono): Always use
1651         lvalue arguments to make_format_args.
1652         * include/std/format (make_format_args): Change parameter pack
1653         from forwarding references to lvalue references. Remove use of
1654         remove_reference_t which is now unnecessary.
1655         (format_to, formatted_size): Remove incorrect forwarding of
1656         arguments.
1657         * include/std/ostream (print): Remove forwarding of arguments.
1658         * include/std/print (print): Likewise.
1659         * testsuite/20_util/duration/io.cc: Use lvalues as arguments to
1660         make_format_args.
1661         * testsuite/std/format/arguments/args.cc: Likewise.
1662         * testsuite/std/format/arguments/lwg3810.cc: Likewise.
1663         * testsuite/std/format/functions/format.cc: Likewise.
1664         * testsuite/std/format/functions/vformat_to.cc: Likewise.
1665         * testsuite/std/format/string.cc: Likewise.
1666         * testsuite/std/time/day/io.cc: Likewise.
1667         * testsuite/std/time/month/io.cc: Likewise.
1668         * testsuite/std/time/weekday/io.cc: Likewise.
1669         * testsuite/std/time/year/io.cc: Likewise.
1670         * testsuite/std/time/year_month_day/io.cc: Likewise.
1671         * testsuite/std/format/arguments/args_neg.cc: New test.
1672
1673 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
1674
1675         * include/Makefile.am: Add new headers.
1676         * include/Makefile.in: Regenerate.
1677         * include/bits/unicode.h: New file.
1678         * include/bits/unicode-data.h: New file.
1679         * include/std/format: Include <bits/unicode.h>.
1680         (__literal_encoding_is_utf8): Move to <bits/unicode.h>.
1681         (_Spec::_M_fill): Change type to char32_t.
1682         (_Spec::_M_parse_fill_and_align): Read a Unicode scalar value
1683         instead of a single character.
1684         (__write_padded): Change __fill_char parameter to char32_t and
1685         encode it into the output.
1686         (__formatter_str::format): Use new __unicode::__field_width and
1687         __unicode::__truncate functions.
1688         * include/std/ostream: Adjust namespace qualification for
1689         __literal_encoding_is_utf8.
1690         * include/std/print: Likewise.
1691         * src/c++23/print.cc: Add [[unlikely]] attribute to error path.
1692         * testsuite/ext/unicode/view.cc: New test.
1693         * testsuite/std/format/functions/format.cc: Add missing examples
1694         from the standard demonstrating alignment with non-ASCII
1695         characters. Add examples checking correct handling of extended
1696         grapheme clusters.
1697
1698 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
1699
1700         * include/bits/version.def (format_uchar): Define.
1701         * include/bits/version.h: Regenerate.
1702         * include/std/format (formatter<C, C>::format): Check for
1703         _Pres_c and call _M_format_character directly. Cast C to its
1704         unsigned equivalent for formatting as an integer.
1705         (formatter<char, wchar_t>::format): Likewise.
1706         (basic_format_arg(T&)): Store char arguments as unsigned char
1707         for formatting to a wide string.
1708         * testsuite/std/format/functions/format.cc: Adjust test. Check
1709         formatting of
1710
1711 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
1712
1713         PR libstdc++/112997
1714         * libsupc++/unwind-cxx.h (__cxa_call_terminate): Change first
1715         parameter to void*.
1716
1717 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
1718
1719         * testsuite/20_util/variant/87619.cc: Remove dg-timeout-factor.
1720
1721 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
1722
1723         * include/std/type_traits (is_trivially_destructible_v): Use
1724         built-in directly when concepts are supported.
1725         * testsuite/20_util/is_trivially_destructible/value_v.cc: New
1726         test.
1727
1728 2024-01-06  Gwenole Beauchesne  <gb.devel@gmail.com>
1729
1730         * testsuite/tr1/8_c_compatibility/cinttypes/functions.cc: Use
1731         nonnull arguments to strtoimax() and wcstoimax() functions.
1732
1733 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
1734
1735         * src/c++17/fs_path.cc (path::_List::reserve): Limit maximum
1736         size and check for overflows in arithmetic.
1737         (path::operator/=(const path&)): Remove redundant exponential
1738         growth calculation.
1739
1740 2024-01-05  Martin Küttler  <martin.kuettler@kernkonzept.com>
1741
1742         * src/c++17/fs_path.cc (path::_List::reserve): Avoid
1743         floating-point arithmetic.
1744
1745 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
1746
1747         PR libstdc++/113241
1748         * include/std/type_traits (is_convertible_v): Guard use of
1749         built-in with preprocessor check.
1750
1751 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
1752
1753         PR libstdc++/113200
1754         * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Use
1755         __builtin_constant_p to check for unrelated pointers that cannot
1756         be compared during constant evaluation.
1757         * testsuite/21_strings/char_traits/requirements/113200.cc: New
1758         test.
1759
1760 2024-01-05  Cassio Neri  <cassio.neri@gmail.com>
1761
1762         * include/std/chrono: Fix + and - for months and weekdays.
1763         * testsuite/std/time/month/1.cc: Add constexpr tests against overflow.
1764         * testsuite/std/time/month/2.cc: New test for extreme values.
1765         * testsuite/std/time/weekday/1.cc: Add constexpr tests against overflow.
1766         * testsuite/std/time/weekday/2.cc: New test for extreme values.
1767
1768 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
1769
1770         PR libstdc++/113099
1771         * include/bits/locale_classes.tcc (__try_use_facet): Use
1772         if-constexpr for C++11 and up.
1773
1774 2024-01-05  Ken Matsui  <kmatsui@gcc.gnu.org>
1775
1776         * include/std/type_traits: Use _GLIBCXX_USE_BUILTIN_TRAIT.
1777
1778 2024-01-04  Arsen Arsenović  <arsen@aarsen.me>
1779
1780         * include/std/generator (_Subyield_state::_M_jump_in): Fix typo
1781         reported by Will Hawkins <hawkinsw@obs.cr>.
1782
1783 2024-01-04  Arsen Arsenović  <arsen@aarsen.me>
1784
1785         * include/std/generator (_Stateless_alloc): Rename typename _A
1786         to _All.
1787
1788 2024-01-03  Patrick Palka  <ppalka@redhat.com>
1789
1790         PR testsuite/113175
1791         * testsuite/std/ranges/iota/max_size_type.cc (test02): Reduce
1792         'limit' to 100 from 1000 and adjust 'log2_limit' accordingly.
1793         (test03): Likewise.
1794
1795 \f
1796 Copyright (C) 2024 Free Software Foundation, Inc.
1797
1798 Copying and distribution of this file, with or without modification,
1799 are permitted in any medium without royalty provided the copyright
1800 notice and this notice are preserved.