libstdc++-v3/ChangeLog

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