libstdc++-v3/ChangeLog

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