libstdc++-v3/ChangeLog

   1 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define consistently
   4         with USE_ATOMIC_LIST_HEAD.
   5         (list_mutex): Replace global object with function. Use local
   6         static object when std::mutex constructor isn't constexpr.
   7
   8 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
   9
  10         PR libstdc++/110462
  11         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check that
  12         copy_file_range can be called with loff_t* arguments.
  13         * configure: Regenerate.
  14         * src/filesystem/ops-common.h (copy_file_copy_file_range):
  15         Use loff_t for offsets.
  16
  17 2023-06-29  Tom Tromey  <tromey@adacore.com>
  18
  19         * testsuite/lib/gdb-test.exp (gdb-test): Relax type-printer
  20         regexp.
  21
  22 2023-06-28  Jan Hubicka  <jh@suse.cz>
  23
  24         PR middle-end/109849
  25         * include/bits/c++config (std::__terminate): Mark cold.
  26         * include/bits/functexcept.h: Mark everything as cold.
  27         * libsupc++/exception: Mark terminate and unexpected as cold.
  28
  29 2023-06-26  Thomas Rodgers  <trodgers@redhat.com>
  30
  31         * include/pstl/algorithm_fwd.h: Synchronize with upstream.
  32         * include/pstl/algorithm_impl.h: Likewise.
  33         * include/pstl/execution_defs.h: Likewise.
  34         * include/pstl/execution_impl.h: Likewise.
  35         * include/pstl/glue_algorithm_impl.h: Likewise.
  36         * include/pstl/glue_execution_defs.h: Likewise.
  37         * include/pstl/glue_memory_impl.h: Likewise.
  38         * include/pstl/glue_numeric_impl.h: Likewise.
  39         * include/pstl/memory_impl.h: Likewise.
  40         * include/pstl/numeric_fwd.h: Likewise.
  41         * include/pstl/numeric_impl.h: Likewise.
  42         * include/pstl/parallel_backend.h: Likewise.
  43         * include/pstl/parallel_backend_serial.h: Likewise.
  44         * include/pstl/parallel_backend_tbb.h: Likewise.
  45         * include/pstl/parallel_impl.h: Likewise.
  46         * include/pstl/pstl_config.h: Likewise.
  47         * include/pstl/unseq_backend_simd.h: Likewise.
  48         * include/pstl/utils.h: Likewise.
  49         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc:
  50         Likewise.
  51         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc:
  52         Likewise.
  53         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc:
  54         Likewise.
  55         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc:
  56         Likewise.
  57         * testsuite/25_algorithms/pstl/alg_merge/merge.cc: Likewise.
  58         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc:
  59         Likewise.
  60         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc:
  61         Likewise.
  62         * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc:
  63         Likewise.
  64         * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc:
  65         Likewise.
  66         * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc:
  67         Likewise.
  68         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc:
  69         Likewise.
  70         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc:
  71         Likewise.
  72         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc:
  73         Likewise.
  74         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc:
  75         Likewise.
  76         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc:
  77         Likewise.
  78         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc:
  79         Likewise.
  80         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc:
  81         Likewise.
  82         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc:
  83         Likewise.
  84         * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc:
  85         Likewise.
  86         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc:
  87         Likewise.
  88         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc:
  89         Likewise.
  90         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc:
  91         Likewise.
  92         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc:
  93         Likewise.
  94         * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc:
  95         Likewise.
  96         * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc:
  97         Likewise.
  98         * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc:
  99         Likewise.
 100         * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc:
 101         Likewise.
 102         * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc:
 103         Likewise.
 104         * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc:
 105         Likewise.
 106         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc:
 107         Likewise.
 108         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc:
 109         Likewise.
 110         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc:
 111         Likewise.
 112         * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc:
 113         Likewise.
 114         * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc:
 115         Likewise.
 116         * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc:
 117         Likewise.
 118         * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc:
 119         Likewise.
 120         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc:
 121         Likewise.
 122         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc:
 123         Likewise.
 124         * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc:
 125         Likewise.
 126         * testsuite/25_algorithms/pstl/alg_sorting/includes.cc:
 127         Likewise.
 128         * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc:
 129         Likewise.
 130         * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc:
 131         Likewise.
 132         * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc:
 133         Likewise.
 134         * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc:
 135         Likewise.
 136         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc:
 137         Likewise.
 138         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc:
 139         Likewise.
 140         * testsuite/25_algorithms/pstl/alg_sorting/set.cc:
 141         Likewise.
 142         * testsuite/25_algorithms/pstl/alg_sorting/sort.cc:
 143         Likewise.
 144         * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc:
 145         Likewise.
 146         * testsuite/26_numerics/pstl/numeric_ops/reduce.cc:
 147         Likewise.
 148         * testsuite/26_numerics/pstl/numeric_ops/scan.cc:
 149         Likewise.
 150         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
 151         Likewise.
 152         * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc:
 153         Likewise.
 154         * testsuite/util/pstl/test_utils.h:
 155         Likewise.
 156
 157 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
 158
 159         PR libstdc++/110239
 160         * include/std/format (__format::__parse_integer): Fix buffer
 161         overflow for wide chars.
 162         (formatter<const void*, C>::format): Cast to uintptr_t instead
 163         of uint64_t.
 164         * testsuite/std/format/string.cc: Test too-large widths.
 165
 166 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
 167
 168         * include/bits/iterator_concepts.h (projected): Replace class
 169         template with alias template denoting an ADL-proofed helper.
 170         (incremental_traits<projected<Iter, Proj>>): Remove.
 171         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
 172         New test.
 173
 174 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
 175
 176         * include/debug/helper_functions.h (__get_distance)
 177         (__check_singular, __valid_range_aux, __valid_range): Qualify
 178         calls to disable ADL.
 179         (__check_singular_aux(const _Safe_iterator_base*)): Declare
 180         overload that was previously found via ADL.
 181
 182 2023-06-23  Jonathan Wakely  <jwakely@redhat.com>
 183
 184         * include/bits/vector.tcc (_M_realloc_insert): Replace try-block
 185         with RAII types.
 186
 187 2023-06-20  Jonathan Wakely  <jwakely@redhat.com>
 188
 189         * include/std/array (to_array(T(&)[N])): Remove redundant
 190         condition.
 191         (to_array(T(&&)[N])): Remove redundant std::move.
 192
 193 2023-06-16  Alexandre Oliva  <oliva@adacore.com>
 194
 195         * testsuite/20_util/from_chars/4.cc: Skip long double on
 196         aarch64-rtems.
 197
 198 2023-06-16  Joel Brobecker  <brobecker@adacore.com>
 199
 200         * configure.ac ["x${with_newlib}" = "xyes"]: Define
 201         HAVE_HYPOTF.  Add compile-checks for various long double
 202         math functions as well.
 203         * configure: Regenerate.
 204
 205 2023-06-14  Jonny Grant  <jg@jguk.org>
 206
 207         * doc/xml/manual/extensions.xml: Remove demangle exception
 208         description and include.
 209         * doc/html/manual/ext_demangling.html: Regenerate.
 210
 211 2023-06-10  Hans-Peter Nilsson  <hp@axis.com>
 212
 213         * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc (main)
 214         [! SIMULATOR_TEST]: Also exclude running test05.
 215         * testsuite/27_io/basic_istream/ignore/char/94749.cc: Ditto.
 216
 217 2023-06-09  Ken Matsui  <kmatsui@cs.washington.edu>
 218
 219         * include/std/type_traits: Use using instead of typedef
 220
 221 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 222
 223         PR libstdc++/110077
 224         * src/c++17/floating_from_chars.cc (from_chars) <_Float128>:
 225         Only define if _Float128 and long double have different
 226         representations.
 227
 228 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 229
 230         PR libstdc++/100285
 231         * include/experimental/internet [IPPROTO_TCP || IPPROTO_UDP]
 232         (basic_endpoint, basic_resolver_entry, resolver_base)
 233         (basic_resolver_results, basic_resolver): Only define if the tcp
 234         or udp protocols will be defined.
 235
 236 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 237
 238         * acinclude.m4 (libtool_VERSION): Update to 6.0.33.
 239         * configure: Regenerate.
 240         * doc/xml/manual/abi.xml: Add libstdc++.so.6.0.33.
 241         * doc/html/manual/abi.html: Regenerate.
 242
 243 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 244
 245         PR libstdc++/110149
 246         * include/std/format (formatter<const void*, charT>::parse):
 247         Only alow 0 and P for C++26 and non-strict modes.
 248         (formatter<const void*, charT>::format): Use toupper for P
 249         type, and insert zero-fill characters for 0 option.
 250         * testsuite/std/format/functions/format.cc: Check pointer
 251         formatting. Only check P2510R3 extensions conditionally.
 252         * testsuite/std/format/parse_ctx.cc: Only check P2510R3
 253         extensions conditionally.
 254
 255 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 256
 257         PR libstdc++/110167
 258         * include/std/array (to_array): Initialize arrays of trivial
 259         types using memcpy. For non-trivial types, use lambda
 260         expressions instead of a separate helper function.
 261         (__to_array): Remove.
 262         * testsuite/23_containers/array/creation/110167.cc: New test.
 263
 264 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 265
 266         * testsuite/23_containers/deque/modifiers/emplace/52799.cc:
 267         Removed.
 268         * testsuite/23_containers/deque/modifiers/emplace/const_iterator.cc:
 269         Removed.
 270         * testsuite/23_containers/list/modifiers/emplace/52799.cc:
 271         Removed.
 272         * testsuite/23_containers/list/modifiers/emplace/const_iterator.cc:
 273         Removed.
 274         * testsuite/23_containers/vector/modifiers/emplace/52799.cc:
 275         Removed.
 276         * testsuite/23_containers/vector/modifiers/emplace/const_iterator.cc:
 277         Removed.
 278         * testsuite/23_containers/deque/modifiers/emplace/1.cc: New
 279         test.
 280         * testsuite/23_containers/list/modifiers/emplace/1.cc: New
 281         test.
 282         * testsuite/23_containers/vector/modifiers/emplace/1.cc: New
 283         test.
 284
 285 2023-06-07  Jakub Jelinek  <jakub@redhat.com>
 286
 287         PR libstdc++/110145
 288         * testsuite/20_util/to_chars/double.cc: Include <cfloat>.
 289         (double_to_chars_test_cases,
 290         double_scientific_precision_to_chars_test_cases_2,
 291         double_fixed_precision_to_chars_test_cases_2): #if out 1e126, 4.91e-6
 292         and 5.547e-6 tests if FLT_EVAL_METHOD is negative or larger than 1.
 293         Add unconditional tests with corresponding double constants
 294         0x1.7a2ecc414a03fp+418, 0x1.4981285e98e79p-18 and
 295         0x1.7440bbff418b9p-18.
 296
 297 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 298
 299         * testsuite/util/testsuite_abi.cc (check_version): Re-add
 300         CXXABI_1.3.14.
 301
 302 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 303
 304         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
 305         Require effective target exceptions_enabled instead of using
 306         dg-skip-if.
 307         * testsuite/23_containers/vector/capacity/constexpr.cc: Expect
 308         shrink_to_fit() to be a no-op without exceptions enabled.
 309         * testsuite/23_containers/vector/capacity/shrink_to_fit.cc:
 310         Likewise.
 311         * testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
 312         Require effective target exceptions_enabled.
 313         * testsuite/ext/malloc_allocator/check_allocate_max_size.cc:
 314         Likewise.
 315         * testsuite/ext/mt_allocator/check_allocate_max_size.cc:
 316         Likewise.
 317         * testsuite/ext/new_allocator/check_allocate_max_size.cc:
 318         Likewise.
 319         * testsuite/ext/pool_allocator/check_allocate_max_size.cc:
 320         Likewise.
 321         * testsuite/ext/throw_allocator/check_allocate_max_size.cc:
 322         Likewise.
 323
 324 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 325
 326         * testsuite/20_util/duration/cons/2.cc: Use values that aren't
 327         affected by rounding.
 328         * testsuite/20_util/from_chars/5.cc: Cast arithmetic result to
 329         double before comparing for equality.
 330         * testsuite/20_util/from_chars/6.cc: Likewise.
 331         * testsuite/20_util/variant/86874.cc: Use values that aren't
 332         affected by rounding.
 333         * testsuite/25_algorithms/lower_bound/partitioned.cc: Compare to
 334         original value instead of to floating-point-literal.
 335         * testsuite/26_numerics/random/discrete_distribution/cons/range.cc:
 336         Cast arithmetic result to double before comparing for equality.
 337         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/range.cc:
 338         Likewise.
 339         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/range.cc:
 340         Likewise.
 341         * testsuite/26_numerics/valarray/transcend.cc (eq): Check that
 342         the absolute difference is less than 0.01 instead of comparing
 343         to two decimal places.
 344         * testsuite/27_io/basic_istream/extractors_arithmetic/char/01.cc:
 345         Cast arithmetic result to double before comparing for equality.
 346         * testsuite/27_io/basic_istream/extractors_arithmetic/char/09.cc:
 347         Likewise.
 348         * testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc:
 349         Likewise.
 350         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc:
 351         Likewise.
 352         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc:
 353         Likewise.
 354         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/10.cc:
 355         Likewise.
 356         * testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
 357
 358 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 359
 360         Revert:
 361         2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 362
 363         * configure.ac: Use AS_IF.
 364         * configure: Regenerate.
 365
 366 2023-06-07  Thomas Schwinge  <thomas@codesourcery.com>
 367
 368         * testsuite/lib/prune.exp (libstdc++-dg-prune): Support
 369         'UNSUPPORTED: [...]: exception handling disabled'.
 370
 371 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 372
 373         * testsuite/util/testsuite_abi.cc (check_version): Add
 374         CXXABI_1.3.15 symver and make it the latestp. Remove
 375         GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
 376
 377 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 378             Jakub Jelinek  <jakub@redhat.com>
 379
 380         PR libstdc++/104772
 381         * include/std/limits: (numeric_limits<__float128>): Define
 382         for __STRICT_ANSI__ as well.
 383         * testsuite/18_support/numeric_limits/128bit.cc: Remove
 384         check for __STRICT_ANSI__.
 385
 386 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 387
 388         * configure.ac: Use AS_IF.
 389         * configure: Regenerate.
 390
 391 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 392
 393         PR libstdc++/109822
 394         * include/experimental/bits/simd_builtin.h (_S_store): Rewrite
 395         to avoid casts to other vector types. Implement store as
 396         succession of power-of-2 sized memcpy to avoid PR90424.
 397
 398 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 399
 400         PR libstdc++/110054
 401         * include/experimental/bits/simd_builtin.h (_S_masked_store):
 402         Call into deduced ABI's SimdImpl after conversion.
 403         * include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
 404         Don't use _mm_maskmoveu_si128. Use the generic fall-back
 405         implementation. Also fix masked stores without SSE2, which
 406         were not doing anything before.
 407
 408 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 409
 410         * include/experimental/bits/simd.h (__bit_cast): Use
 411         __gnu__::__vector_size__ instead of gnu::vector_size.
 412
 413 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 414
 415         PR libstdc++/110139
 416         * include/std/array (__array_traits<T, 0>::operator T*()): Make
 417         conversion operator explicit.
 418         (array::front): Use size_type as subscript operand.
 419         (array::data): Use static_cast to make conversion explicit.
 420         * testsuite/23_containers/array/element_access/110139.cc: New
 421         test.
 422
 423 2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
 424
 425         * include/bits/locale_classes.tcc: Remove check for
 426         codecvt<char8_t, char, mbstate_t> facet.
 427
 428 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 429
 430         * src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
 431         close-on-exec flag on file descriptors.
 432
 433 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 434
 435         PR libstdc++/108178
 436         * src/filesystem/ops-common.h (do_copy_file): Check for empty
 437         files by trying to read a character.
 438         * testsuite/27_io/filesystem/operations/copy_file_108178.cc:
 439         New test.
 440
 441 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
 442
 443         * acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
 444         * config.h.in: Regenerate.
 445         * configure: Regenerate.
 446         * src/filesystem/ops-common.h (copy_file_copy_file_range):
 447         Define new function.
 448         (do_copy_file): Use it.
 449
 450 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
 451
 452         * acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
 453         * config.h.in: Regenerate.
 454         * configure: Regenerate.
 455         * src/filesystem/ops-common.h (copy_file_sendfile): Define new
 456         function for sendfile logic. Loop to support large files. Skip
 457         zero-length files.
 458         (do_copy_file): Use it.
 459
 460 2023-06-04  Jason Merrill  <jason@redhat.com>
 461
 462         PR c++/97720
 463         * libsupc++/eh_call.cc (__cxa_call_terminate): Take void*.
 464         * config/abi/pre/gnu.ver: Add it.
 465
 466 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
 467
 468         * include/parallel/algobase.h: Include <parallel/search.h>.
 469
 470 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 471
 472         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
 473         Add const to equality operator.
 474
 475 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 476
 477         * include/std/expected (expected::and_then, expected::or_else)
 478         (expected::transform_error): Use _M_val and _M_unex instead of
 479         calling value() and error(), as per LWG 3938.
 480         (expected::transform): Likewise. Remove incorrect std::move
 481         calls from lvalue overloads.
 482         (expected<void, E>::and_then, expected<void, E>::or_else)
 483         (expected<void, E>::transform): Use _M_unex instead of calling
 484         error().
 485         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
 486         and transform, and for std::expected<void, E>.
 487         * testsuite/20_util/expected/lwg3938.cc: New test.
 488
 489 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 490
 491         PR libstdc++/110060
 492         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
 493         Remove.
 494         (vector::size, vector::capacity): Remove calls to _M_invariant.
 495         * include/bits/vector.tcc (vector::_M_fill_assign): Add
 496         optimization hint to reallocating path.
 497         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
 498         Likewise.
 499         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
 500         to...
 501         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
 502         ...here. Check assign(FwdIter, FwdIter) too.
 503         * testsuite/23_containers/vector/types/1.cc: Revert addition
 504         of -Wno-stringop-overread option.
 505
 506 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 507
 508         * doc/xml/manual/evolution.xml: Document removal of implicit
 509         allocator rebinding extensions in strict mode and for C++20.
 510         * doc/html/*: Regenerate.
 511
 512 2023-06-01  Jason Merrill  <jason@redhat.com>
 513
 514         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
 515         handlers in the cleanup phase.
 516
 517 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
 518
 519         PR libstdc++/110050
 520         * include/experimental/bits/simd.h (__vectorized_sizeof): With
 521         __have_neon_a32 only single-precision float works (in addition
 522         to integers).
 523
 524 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
 525
 526         * include/bits/stl_algo.h
 527         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
 528         * include/bits/stl_algobase.h: ...here.
 529         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
 530         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
 531         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
 532         Move...
 533         * include/parallel/algobase.h: ...here.
 534         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
 535         includes. Include <bits/stl_algobase.h>.
 536
 537 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 538
 539         PR libstdc++/109818
 540         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
 541         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
 542         * config.h.in: Regenerate.
 543         * configure: Regenerate.
 544         * include/c_global/cmath (float_t, double_t): Guard using new
 545         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
 546
 547 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 548
 549         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
 550         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
 551         for C99 rounding functions to here.
 552         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
 553         functions from here.
 554         * config.h.in: Regenerate.
 555         * configure: Regenerate.
 556         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
 557         of _GLIBCXX_USE_C99_MATH_TR1.
 558         * include/bits/random.tcc: Likewise.
 559         * include/c_compatibility/math.h: Likewise.
 560         * include/c_global/cmath: Likewise.
 561         * include/ext/random: Likewise.
 562         * include/ext/random.tcc: Likewise.
 563         * include/std/complex: Likewise.
 564         * testsuite/20_util/from_chars/4.cc: Likewise.
 565         * testsuite/20_util/from_chars/8.cc: Likewise.
 566         * testsuite/26_numerics/complex/proj.cc: Likewise.
 567         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
 568         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
 569         Likewise.
 570         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 571         Likewise.
 572         * testsuite/util/testsuite_random.h: Likewise.
 573
 574 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 575
 576         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
 577         function.
 578         (vector::size(), vector::capacity()): Call _M_invariant().
 579         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
 580         * testsuite/23_containers/vector/types/1.cc: Add suppression for
 581         false positive warning (PR110060).
 582
 583 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 584
 585         PR libstdc++/109921
 586         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
 587         defined before trying to use _Float128.
 588
 589 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 590
 591         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
 592         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
 593         * configure: Regenerate.
 594
 595 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 596
 597         * include/bits/unique_lock.h: Include <bits/error_constants.h>
 598         here for std::errc constants.
 599         * include/std/mutex: Do not include <bits/error_constants.h> and
 600         <exception> here.
 601
 602 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 603
 604         * configure.ac: Replace use of -o operator for test.
 605         * configure: Regenerate.
 606
 607 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 608
 609         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
 610         noexcept to all constructors except the default constructor.
 611         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
 612         (scoped_allocator_adaptor::outer_allocator): Likewise.
 613         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
 614
 615 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 616
 617         PR libstdc++/104772
 618         * include/std/limits (numeric_limits<__float128>): Define.
 619         * testsuite/18_support/numeric_limits/128bit.cc: New test.
 620
 621 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 622
 623         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
 624         msp430 to all 16-bit targets.
 625         * configure: Regenerate.
 626
 627 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 628
 629         PR libstdc++/109921
 630         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
 631         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
 632         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
 633         binary64.
 634         (from_chars(const char*, const char*, double&, chars_format)):
 635         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
 636         (from_chars(const char*, const char*, _Float128&, chars_format))
 637         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
 638         defined, otherwise parse a long double and convert to _Float128.
 639
 640 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 641
 642         PR libstdc++/109922
 643         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
 644         Add deprecated attribute to non-standard overload.
 645         * doc/xml/manual/evolution.xml: Document deprecation.
 646         * doc/html/*: Regenerate.
 647         * testsuite/27_io/manipulators/standard/char/1.cc: Add
 648         dg-warning for expected deprecated warning.
 649         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
 650         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
 651         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
 652
 653 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
 654
 655         * testsuite/20_util/from_chars/4.cc: Skip long double test06
 656         on x86_64-vxworks.
 657         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
 658         x86_64-vxworks.
 659
 660 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 661
 662         PR libstdc++/109822
 663         * include/experimental/bits/simd.h (to_native): Use int NTTP
 664         as specified in PTS2.
 665         (to_compatible): Likewise. Add missing tag to call mask
 666         generator ctor.
 667         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
 668         test.
 669
 670 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 671
 672         * testsuite/experimental/simd/tests/integer_operators.cc:
 673         Compute expected value differently to avoid getting turned into
 674         a vector shift.
 675
 676 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 677
 678         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
 679         double <-> (u)long conversion tests conditional on sizeof(long
 680         double) and sizeof(long).
 681
 682 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
 683
 684         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
 685         Negative __y is UB, so prefer signed compare.
 686
 687 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
 688
 689         * testsuite/util/testsuite_allocator.h (PointerBase): Add
 690         relational operators.
 691
 692 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
 693
 694         * testsuite/20_util/to_chars/long_double.cc: Expect execution
 695         fail on x86-vxworks.
 696
 697 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 698
 699         PR libstdc++/109949
 700         * include/experimental/bits/simd.h (__intrinsic_type): If
 701         __ALTIVEC__ is defined, map gnu::vector_size types to their
 702         corresponding __vector T types without losing unsignedness of
 703         integer types. Also prefer long long over long.
 704         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
 705         object to the expected unsigned vector type.
 706
 707 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 708
 709         PR libstdc++/109261
 710         * include/experimental/bits/simd.h (__intrinsic_type):
 711         Specialize __intrinsic_type<double, 8> and
 712         __intrinsic_type<double, 16> in any case, but provide the member
 713         type only with __aarch64__.
 714
 715 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 716
 717         PR libstdc++/109261
 718         * include/experimental/bits/simd_neon.h (_S_reduce): Add
 719         constexpr and make NEON implementation conditional on
 720         not __builtin_is_constant_evaluated.
 721
 722 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
 723
 724         PR libstdc++/109261
 725         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
 726         Avoid vector builtin subscripting in constant expressions.
 727         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
 728         (const_where_expression, where_expression, where)
 729         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
 730         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
 731         internal APIs).
 732         * include/experimental/bits/simd_builtin.h (__vector_permute)
 733         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
 734         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
 735         (_MaskImplBuiltin::_S_store): Add constexpr.
 736         (_CommonImplBuiltin::_S_store_bool_array)
 737         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
 738         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
 739         constant_evaluated case.
 740         * include/experimental/bits/simd_fixed_size.h
 741         (_S_masked_load): Reword comment.
 742         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
 743         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
 744         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
 745         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
 746         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
 747         constexpr.
 748         (_SimdTuple::operator[], _M_set): Add constexpr and add
 749         constant_evaluated case.
 750         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
 751         * include/experimental/bits/simd_scalar.h: Add constexpr.
 752         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
 753         constexpr and add constant_evaluated case.
 754         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
 755         (_S_less_equal): Value-initialize to satisfy constexpr
 756         evaluation.
 757         (_MaskImplX86::_S_load): Add constant_evaluated case.
 758         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
 759         case. Value-initialize local variables.
 760         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
 761         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
 762         case.
 763         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
 764         test.
 765
 766 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
 767
 768         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
 769         __infn into #ifdef'ed block.
 770         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
 771         constants only when used.
 772         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
 773         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
 774         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
 775         Likewise.
 776         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
 777         Move totest and expect1 into #ifdef'ed block.
 778
 779 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
 780
 781         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
 782         * doc/html/manual/strings.html: Regenerate.
 783
 784 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 785
 786         PR libstdc++/109883
 787         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
 788
 789 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 790
 791         PR libstdc++/109883
 792         * include/c_global/cmath (atan2, fmod, pow): Move
 793         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
 794         __gnu_cxx::__bfloat16_t overloads.
 795         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
 796         Likewise.
 797         (fma): Move __gnu_cxx::__promote_3 using template after
 798         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
 799
 800 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 801
 802         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
 803         checks for float_round_style and float_denorm_style.
 804
 805 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 806
 807         * include/bits/c++config: Add system_header pragma.
 808
 809 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 810
 811         * include/std/expected (expected::and_then, expected::or_else)
 812         (expected::transform, expected::transform_error): Fix exception
 813         specifications as per LWG 3877.
 814         (expected<void, E>::and_then, expected<void, E>::transform):
 815         Likewise.
 816         * testsuite/20_util/expected/lwg3877.cc: New test.
 817
 818 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
 819
 820         * include/std/type_traits: Use __bool_constant instead of
 821         integral_constant.
 822
 823 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 824
 825         * configure: Regenerate.
 826
 827 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 828
 829         PR libstdc++/109741
 830         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
 831         * config.h.in: Regenerate.
 832         * configure: Regenerate.
 833         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
 834         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
 835         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
 836         instead of hardcoded 64.
 837
 838 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 839
 840         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
 841         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
 842         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
 843         * config.h.in: Regenerate.
 844         * configure: Regenerate.
 845         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
 846         instead of _GLIBCXX_USE_C99_FENV_TR1.
 847         * include/c_global/cfenv: Likewise.
 848         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
 849         of _GLIBCXX_USE_C99_CTYPE_TR1.
 850
 851 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 852
 853         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
 854         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
 855         <inttypes.h> features in C++11 mode and define
 856         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
 857         * config.h.in: Regenerate.
 858         * configure: Regenerate.
 859         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
 860         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
 861         of _GLIBCXX_USE_C99_STDINT_TR1.
 862         * include/c_compatibility/inttypes.h: Check
 863         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
 864         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
 865         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
 866         * include/c_compatibility/stdatomic.h: Check
 867         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
 868         * include/c_compatibility/stdint.h: Likewise.
 869         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
 870         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
 871         _GLIBCXX_USE_C99_INTTYPES_TR1 and
 872         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
 873         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
 874         instead of _GLIBCXX_USE_C99_STDINT_TR1.
 875         * include/std/atomic: Likewise.
 876         * src/c++11/cow-stdexcept.cc: Likewise.
 877         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
 878         Likewise.
 879         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 880         Likewise.
 881
 882 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 883
 884         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
 885         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
 886         * config.h.in: Regenerate.
 887         * configure: Regenerate.
 888         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
 889         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
 890         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
 891
 892 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 893
 894         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
 895         assertion to ensure expected exception is throw.
 896
 897 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 898
 899         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
 900         printer for chrono::zoned_time for cx11 ABI and tzdb effective
 901         target.
 902
 903 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 904
 905         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
 906         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
 907         * configure: Regenerate.
 908
 909 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 910
 911         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
 912         to check for nan, nanf, and nanl.
 913         * configure: Regenerate.
 914
 915 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 916
 917         * include/bits/char_traits.h (char_traits<char16_t>): Do not
 918         depend on _GLIBCXX_USE_C99_STDINT_TR1.
 919         (char_traits<char32_t>): Likewise.
 920         * include/experimental/source_location: Likewise.
 921
 922 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 923
 924         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
 925         (atomic_int_least16_t, atomic_uint_least16_t)
 926         (atomic_int_least32_t, atomic_uint_least32_t)
 927         (atomic_int_least64_t, atomic_uint_least64_t)
 928         (atomic_int_fast16_t, atomic_uint_fast16_t)
 929         (atomic_int_fast32_t, atomic_uint_fast32_t)
 930         (atomic_int_fast64_t, atomic_uint_fast64_t)
 931         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
 932         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
 933
 934 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 935
 936         * include/bits/algorithmfwd.h (shuffle): Do not depend on
 937         _GLIBCXX_USE_C99_STDINT_TR1.
 938         * include/bits/ranges_algo.h (shuffle): Likewise.
 939         * include/bits/stl_algo.h (shuffle): Likewise.
 940         * include/ext/random: Likewise.
 941         * include/ext/throw_allocator.h (random_condition): Likewise.
 942         * include/std/random: Likewise.
 943         * src/c++11/cow-string-inst.cc: Likewise.
 944         * src/c++11/random.cc: Likewise.
 945
 946 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 947
 948         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
 949         _GLIBCXX_USE_C99_STDINT_TR1.
 950
 951 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 952
 953         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
 954         on _GLIBCXX_USE_C99_STDINT_TR1.
 955
 956 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 957
 958         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
 959         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
 960         * testsuite/experimental/string_view/typedefs.cc: Likewise.
 961
 962 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 963
 964         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
 965         (auto_locale, auto_ferounding): New class types.
 966         (from_chars_impl): Use auto_locale and auto_ferounding.
 967
 968 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 969
 970         PR libstdc++/109772
 971         * include/std/chrono (hh_mm_ss::__fits): Remove variable
 972         template.
 973         (hh_mm_ss::__subseconds): Remove __fits from constraints.
 974         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
 975         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
 976         hh_mm_ss<duration<int, std::pico>>.
 977
 978 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 979
 980         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
 981         * include/bits/basic_ios.h: Add static assertion checking
 982         traits_type::value_type.
 983         * include/bits/basic_string.h: Likewise. Do not rebind
 984         allocator, and add static assertion checking its value_type.
 985         (basic_string::_Alloc_traits_impl): Remove class template.
 986         (basic_string::_S_allocate): New static member function.
 987         (basic_string::assign): Use _S_allocate.
 988         * include/bits/basic_string.tcc (basic_string::_M_create)
 989         (basic_string::reserve, basic_string::_M_replace): Likewise.
 990         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
 991         Disable for C++20 and later.
 992         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
 993         Likweise.
 994
 995 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 996
 997         PR libstdc++/109758
 998         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
 999         and negative zero correctly.
1000         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
1001
1002 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
1003
1004         * include/bits/hashtable_policy.h
1005         (_NodeBuilder<>::_S_build): Use __node_ptr.
1006         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
1007         (_AllocNode<>): Likewise.
1008         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
1009         to call std::is_permutation in the non-unique key implementation.
1010         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
1011         _M_begin() once.
1012         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
1013         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
1014         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
1015         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
1016         const_iterator.
1017         (_Hashtable<>::find): Likewise.
1018         (_Hashtable<>::_M_emplace): Likewise.
1019         (_Hashtable<>::_M_insert_unique): Likewise.
1020
1021 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
1022
1023         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
1024         Print floating-point durations correctly.
1025         (StdChronoTimePointPrinter): Support printing only the value,
1026         not the type name. Uncomment handling for known clocks.
1027         (StdChronoZonedTimePrinter): Remove type names from output.
1028         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
1029         (StdChronoTimeZonePrinter): Add equals sign to output.
1030         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
1031
1032 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
1033
1034         * testsuite/20_util/from_chars/4.cc: Skip long double test06
1035         on aarch64-vxworks.
1036         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
1037         aarch64-vxworks.
1038
1039 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
1040
1041         * doc/xml/manual/abi.xml (abi.versioning.history): Document
1042         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
1043         * doc/html/manual/abi.html: Regenerate.
1044
1045 2023-05-04  Florian Weimer  <fweimer@redhat.com>
1046
1047         * doc/xml/manual/abi.xml (abi.versioning.history): Add
1048         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
1049         libgcc_s.
1050
1051 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
1052
1053         * src/c++17/floating_from_chars.cc
1054         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
1055         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
1056         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
1057         _ZSt8to_charsPcS_u9__ieee128.
1058         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
1059         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
1060         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
1061         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
1062         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
1063
1064 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
1065
1066         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
1067         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
1068         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
1069         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
1070         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
1071         versions.
1072         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
1073         file.
1074
1075 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
1076             Jonathan Wakely  <jwakely@redhat.com>
1077
1078         PR libstdc++/109703
1079         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
1080         Initialize _M_string_length.
1081
1082 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
1083
1084         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1085         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
1086         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
1087         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1088         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
1089         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1090         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
1091         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1092
1093 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
1094
1095         PR libstdc++/109694
1096         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
1097         -Wattribute-alias.
1098
1099 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1100
1101         * include/bits/random.h (gamma_distribution): Add to the right
1102         doxygen group.
1103         (discrete_distribution, piecewise_constant_distribution)
1104         (piecewise_linear_distribution): Create a new doxygen group and
1105         fix the incomplete doxygen comments.
1106         * include/bits/uniform_int_dist.h (uniform_int_distribution):
1107         Add to doxygen group.
1108
1109 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1110
1111         * include/bits/uses_allocator.h: Add missing @file comment.
1112         * include/bits/regex.tcc: Remove stray doxygen comments.
1113         * include/experimental/memory_resource: Likewise.
1114         * include/std/bit: Tweak doxygen @cond comments.
1115         * include/std/expected: Likewise.
1116         * include/std/numbers: Likewise.
1117
1118 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1119
1120         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
1121         from header paths.
1122
1123 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1124
1125         * include/bits/move.h: Simplify opening/closing namespace std.
1126
1127 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
1128
1129         PR libstdc++/108969
1130         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
1131         _ZSt21ios_base_library_initv.
1132         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
1133         symver and make it the latestp.
1134         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
1135         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
1136         * include/std/iostream: If init_priority attribute is supported
1137         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
1138         symbol into the object.
1139         * configure: Regenerated.
1140
1141 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1142
1143         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
1144         * include/std/format: Likewise.
1145
1146 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1147
1148         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
1149         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
1150
1151 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1152
1153         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
1154         HTML docs.
1155         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
1156         from doxygen docs.
1157         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
1158         Likewise.
1159         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
1160         Likewise.
1161         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
1162         Likewise.
1163         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
1164         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
1165         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
1166         (_DEFINE_BINARY_OPERATOR): Likewise.
1167
1168 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1169
1170         * include/bits/memory_resource.h: Improve doxygen comments.
1171         * include/std/memory_resource: Likewise.
1172
1173 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1174
1175         PR libstdc++/40380
1176         * include/bits/basic_string.h: Improve doxygen comments.
1177         * include/bits/cow_string.h: Likewise.
1178         * include/bits/forward_list.h: Likewise.
1179         * include/bits/fs_dir.h: Likewise.
1180         * include/bits/fs_path.h: Likewise.
1181         * include/bits/quoted_string.h: Likewise.
1182         * include/bits/stl_bvector.h: Likewise.
1183         * include/bits/stl_map.h: Likewise.
1184         * include/bits/stl_multimap.h: Likewise.
1185         * include/bits/stl_multiset.h: Likewise.
1186         * include/bits/stl_set.h: Likewise.
1187         * include/bits/stl_vector.h: Likewise.
1188         * include/bits/unordered_map.h: Likewise.
1189         * include/bits/unordered_set.h: Likewise.
1190         * include/std/filesystem: Likewise.
1191         * include/std/iomanip: Likewise.
1192
1193 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1194
1195         PR libstdc++/105081
1196         * src/c++11/random.cc (__throw_syserr): New function.
1197         (random_device::_M_init, random_device::_M_init_pretr1): Use new
1198         function for bad tokens.
1199         (random_device::_M_getval): Use new function for read errors.
1200         * testsuite/util/testsuite_random.h (random_device_available):
1201         Change catch handler to use std::system_error.
1202
1203 2023-04-24  Patrick Palka  <ppalka@redhat.com>
1204
1205         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
1206         Fix propagation of sign bit.
1207         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
1208         non-standard 'signed typedef-name'.  Add some compile-time tests
1209         for right-shifting a negative __max_diff_type value by more than
1210         one.
1211
1212 2023-04-19  Patrick Palka  <ppalka@redhat.com>
1213             Jonathan Wakely  <jwakely@redhat.com>
1214
1215         PR c++/100157
1216         * include/bits/utility.h (_Nth_type): Conditionally define in
1217         terms of __type_pack_element if available.
1218         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
1219         additional errors from the new built-in.
1220
1221 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
1222
1223         Revert:
1224         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1225
1226         PR libstdc++/108969
1227         * src/Makefile.am: Move globals_io.cc to here.
1228         * src/Makefile.in: Regenerate.
1229         * src/c++98/Makefile.am: Remove globals_io.cc from here.
1230         * src/c++98/Makefile.in: Regenerate.
1231         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
1232         symbol name and then export with GLIBCXX_3.4.31 symver.
1233         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
1234         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
1235         Regenerate.
1236         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
1237         Regenerate.
1238         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
1239         Regenerate.
1240         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
1241         Regenerate.
1242         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
1243         Regenerate.
1244         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
1245         Regenerate.
1246         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
1247         Regenerate.
1248         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
1249         Regenerate.
1250         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
1251
1252 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
1253
1254         Revert:
1255         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1256
1257         PR libstdc++/108969
1258         * config/abi/pre/gnu.ver: Fix preprocessor condition.
1259
1260 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1261
1262         * doc/xml/manual/extensions.xml: Fix example to declare and
1263         qualify std::free, and use NULL instead of 0.
1264         * doc/html/manual/ext_demangling.html: Regenerate.
1265         * libsupc++/cxxabi.h: Adjust doxygen comments.
1266
1267 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1268
1269         PR libstdc++/108969
1270         * config/abi/pre/gnu.ver: Fix preprocessor condition.
1271
1272 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1273
1274         PR libstdc++/108969
1275         * src/Makefile.am: Move globals_io.cc to here.
1276         * src/Makefile.in: Regenerate.
1277         * src/c++98/Makefile.am: Remove globals_io.cc from here.
1278         * src/c++98/Makefile.in: Regenerate.
1279         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
1280         symbol name and then export with GLIBCXX_3.4.31 symver.
1281         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
1282         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
1283         Regenerate.
1284         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
1285         Regenerate.
1286         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
1287         Regenerate.
1288         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
1289         Regenerate.
1290         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
1291         Regenerate.
1292         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
1293         Regenerate.
1294         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
1295         Regenerate.
1296         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
1297         Regenerate.
1298         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
1299
1300 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1301
1302         PR libstdc++/108827
1303         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
1304         for C++23.
1305         * include/std/ranges (range_adaptor_closure): Define for C++23.
1306         * include/std/version (__cpp_lib_ranges): Bump value for
1307         C++23.
1308         * testsuite/std/ranges/version_c++23.cc: Bump expected value
1309         of __cpp_lib_ranges.
1310         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
1311
1312 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1313
1314         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
1315         Define for C++23.
1316         (__cpp_lib_ranges_iota): Likewise.
1317         (__cpp_lib_ranges_find_last): Likewise.
1318         (__cpp_lib_fold): Rename to ...
1319         (__cpp_lib_ranges_fold): ... this.
1320         * include/std/version: As above.
1321         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
1322         renaming __cpp_lib_fold.
1323         * testsuite/std/ranges/version_c++23.cc: Verify values
1324         of the above feature-test macros.
1325
1326 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1327
1328         PR libstdc++/109525
1329         * include/std/ranges (views::_AsConst::operator()): Add
1330         missing const to constant_range test.
1331         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
1332         Improve formatting.  Adjust expected type of v2.
1333         (test03): New test.
1334
1335 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1336
1337         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
1338         (const_sentinel_t): Likewise.
1339         (range_const_reference_t): Likewise.
1340         (constant_range): Likewise.
1341         (__cust_access::__possibly_const_range): Likewise, replacing ...
1342         (__cust_access::__as_const): ... this.
1343         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
1344         (__cust_access::_CEnd::operator()): Likewise.
1345         (__cust_access::_CRBegin::operator()): Likewise.
1346         (__cust_access::_CREnd::operator()): Likewise.
1347         (__cust_access::_CData::operator()): Likewise.
1348         * include/bits/ranges_util.h (ranges::__detail::__different_from):
1349         Make it an alias of std::__detail::__different_from.
1350         (view_interface::cbegin): Define for C++23.
1351         (view_interface::cend): Likewise.
1352         * include/bits/stl_iterator.h (__detail::__different_from): Define.
1353         (iter_const_reference_t): Define for C++23.
1354         (__detail::__constant_iterator): Likewise.
1355         (__detail::__is_const_iterator): Likewise.
1356         (__detail::__not_a_const_iterator): Likewise.
1357         (__detail::__iter_const_rvalue_reference_t): Likewise.
1358         (__detail::__basic_const_iter_cat):: Likewise.
1359         (const_iterator): Likewise.
1360         (__detail::__const_sentinel): Likewise.
1361         (const_sentinel): Likewise.
1362         (basic_const_iterator): Likewise.
1363         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
1364         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
1365         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
1366         Likewise.
1367         (make_const_iterator): Define for C++23.
1368         (make_const_sentinel): Likewise.
1369         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
1370         (as_const_view): Likewise.
1371         (enable_borrowed_range<as_const_view>): Likewise.
1372         (views::__detail::__is_ref_view): Likewise.
1373         (views::__detail::__can_is_const_view): Likewise.
1374         (views::_AsConst, views::as_const): Likewise.
1375         * include/std/span (span::const_iterator): Likewise.
1376         (span::const_reverse_iterator): Likewise.
1377         (span::cbegin): Likewise.
1378         (span::cend): Likewise.
1379         (span::crbegin): Likewise.
1380         (span::crend): Likewise.
1381         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
1382         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
1383         behave independently of C++20 vs C++23.
1384         * testsuite/std/ranges/version_c++23.cc: Verify value of
1385         __cpp_lib_ranges_as_const macro.
1386         * testsuite/24_iterators/const_iterator/1.cc: New test.
1387         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
1388
1389 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1390
1391         * include/bits/ranges_base.h (__cust_access::__as_const)
1392         (__cust_access::_CBegin, __cust::cbegin)
1393         (__cust_access::_CEnd, __cust::cend)
1394         (__cust_access::_CRBegin, __cust::crbegin)
1395         (__cust_access::_CREnd, __cust::crend)
1396         (__cust_access::_CData, __cust::cdata): Move down definitions to
1397         shortly after the definition of input_range.
1398
1399 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1400
1401         * include/bits/ranges_algo.h: Include <optional> for C++23.
1402         (__cpp_lib_fold): Define for C++23.
1403         (in_value_result): Likewise.
1404         (__detail::__flipped): Likewise.
1405         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
1406         (__detail::__indirectly_binary_left_foldable): Likewise.
1407         (___detail:__indirectly_binary_right_foldable): Likewise.
1408         (fold_left_with_iter_result): Likewise.
1409         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
1410         (__fold_left_fn, fold_left): Likewise.
1411         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
1412         Likewise.
1413         (__fold_left_first_fn, fold_left_first): Likewise.
1414         (__fold_right_fn, fold_right): Likewise.
1415         (__fold_right_last_fn, fold_right_last): Likewise.
1416         * include/std/version (__cpp_lib_fold): Likewise.
1417         * testsuite/25_algorithms/fold_left/1.cc: New test.
1418         * testsuite/25_algorithms/fold_right/1.cc: New test.
1419
1420 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
1421
1422         * include/std/format (formatter): Add comment to deleted default
1423         constructor of primary template.
1424         (_Checking_scanner): Add static_assert.
1425
1426 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1427
1428         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
1429         * doc/html/*: Regenerate.
1430
1431 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1432
1433         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
1434         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
1435         namespace to avoid clashing with libc struct.
1436         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
1437         Likewise.
1438         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
1439         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
1440         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
1441         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
1442         * testsuite/experimental/synchronized_value.cc: Require gthreads
1443         and add missing option for pthreads targets.
1444
1445 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1446
1447         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
1448         for C++23.
1449         (__detail::__range_with_movable_reference): Likewise.
1450         (enumerate_view): Likewise.
1451         (enumerate_view::_Iterator): Likewise.
1452         (enumerate_view::_Sentinel): Likewise.
1453         (views::__detail::__can_enumerate_view): Likewise.
1454         (views::_Enumerate, views::enumerate): Likewise.
1455         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
1456         * testsuite/std/ranges/version_c++23.cc: Verify value of
1457         __cpp_lib_ranges_enumerate.
1458         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
1459
1460 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1461
1462         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
1463         Propagate _M_trailing_empty in the const-converting constructor
1464         as per LWG 3904.
1465         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
1466         assertion.
1467         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
1468
1469 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1470
1471         * src/c++17/floating_from_chars.cc: Include <algorithm>,
1472         <iterator>, <limits> and <cstdint>.
1473
1474 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1475
1476         PR libstdc++/108291
1477         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
1478         parameter types of the lambda wrapper passed to adjacent_find.
1479         (chunk_by_view::_M_find_prev): Likewise.
1480         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
1481         New tests.
1482
1483 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1484
1485         PR libstdc++/109482
1486         * include/experimental/internet (basic_endpoint::basic_endpoint()):
1487         Ensure that the required union members are active. Only define
1488         as constexpr for C++20 and later.
1489         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
1490         Likewise.
1491         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
1492         check constexpr default constructor for C++20 and later.
1493         * testsuite/experimental/net/internet/endpoint/extensible.cc:
1494         Likewise.
1495
1496 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1497
1498         * src/c++20/tzdata.zi: Import new file from 2023c release.
1499
1500 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1501
1502         * include/precompiled/stdc++.h (C++17): Don't double-include
1503         <charconv>, once with wrong conditions.
1504         * testsuite/18_support/96817.cc: Require hosted.
1505         * testsuite/18_support/bad_exception/59392.cc: Ditto.
1506         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
1507         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
1508         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
1509         Ditto.
1510
1511 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1512
1513         * include/bits/c++config: When __STDC_HOSTED__ is zero,
1514         disable _GLIBCXX_DEBUG and, if it was set, enable
1515         _GLIBCXX_ASSERTIONS.
1516         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
1517         Include <bits/c++config.h> when determining whether debug is
1518         set, in order to inherit the logic from above
1519
1520 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1521
1522         * testsuite/17_intro/versionconflict.cc: New test.
1523         * include/std/version: Allow disabling the system_header pragma
1524         via _GLIBCXX_TESTING_SYSHDR.
1525
1526 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1527
1528         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
1529         Synchronize the definition block with...
1530         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
1531         ... this one here.  Also define the 202202L value, rather than
1532         leaving it up to purely unique_ptr.h, so that the value is
1533         synchronized across all headers.
1534         (__gnu_debug::_Safe_iterator_base): Move into new conditional
1535         block.
1536         * include/std/memory (__cpp_lib_atomic_value_initialization):
1537         Define on freestanding under the same conditions as in
1538         atomic_base.h.
1539         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
1540         Also define on freestanding.
1541         (__cpp_lib_to_chars): Ditto.
1542         (__cpp_lib_gcd): Ditto.
1543         (__cpp_lib_gcd_lcm): Ditto.
1544         (__cpp_lib_raw_memory_algorithms): Ditto.
1545         (__cpp_lib_array_constexpr): Ditto.
1546         (__cpp_lib_nonmember_container_access): Ditto.
1547         (__cpp_lib_clamp): Ditto.
1548         (__cpp_lib_constexpr_char_traits): Ditto.
1549         (__cpp_lib_constexpr_string): Ditto.
1550         (__cpp_lib_sample): Ditto.
1551         (__cpp_lib_lcm): Ditto.
1552         (__cpp_lib_constexpr_iterator): Ditto.
1553         (__cpp_lib_constexpr_char_traits): Ditto.
1554         (__cpp_lib_interpolate): Ditto.
1555         (__cpp_lib_constexpr_utility): Ditto.
1556         (__cpp_lib_shift): Ditto.
1557         (__cpp_lib_ranges): Ditto.
1558         (__cpp_lib_move_iterator_concept): Ditto.
1559         (__cpp_lib_constexpr_numeric): Ditto.
1560         (__cpp_lib_constexpr_functional): Ditto.
1561         (__cpp_lib_constexpr_algorithms): Ditto.
1562         (__cpp_lib_constexpr_tuple): Ditto.
1563         (__cpp_lib_constexpr_memory): Ditto.
1564
1565 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
1566
1567         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
1568         timeout factor on hppa*-*-*.
1569
1570 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
1571
1572         * include/bits/regex.h (sub_match::swap): New function.
1573         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
1574
1575 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
1576
1577         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
1578         example program.
1579         * doc/html/manual/ext_demangling.html: Regenerate.
1580
1581 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1582
1583         PR tree-optimization/107087
1584         * include/bits/cow_string.h (basic_string::size()): Add
1585         optimizer hint that _S_empty_rep()._M_length is always zero.
1586         (basic_string::length()): Call size().
1587
1588 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1589
1590         PR libstdc++/109339
1591         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
1592         Add attribute access with access-mode 'none'.
1593         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
1594
1595 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1596
1597         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
1598         Revert change from member function to data member. Fix for
1599         constant evaluation by detecting which union member is active.
1600         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
1601         flag.
1602
1603 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1604
1605         PR libstdc++/109242
1606         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
1607         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
1608
1609 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1610
1611         * include/experimental/internet (ip::make_address): Implement
1612         missing overload.
1613         (ip::address_v4::broadcast()): Avoid undefined shift.
1614         (ip::basic_endpoint): Fix member functions for constexpr.
1615         (ip::basic_endpoint::_M_is_v6): Replace member function with
1616         data member, adjust member functions using it.
1617         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
1618         content.
1619         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
1620         constexpr checks to work in C++14.
1621         * testsuite/experimental/net/internet/address/v4/creation.cc:
1622         Likewise.
1623         * testsuite/experimental/net/internet/endpoint/cons.cc:
1624         Likewise.
1625         * testsuite/experimental/net/internet/network/v4/cons.cc:
1626         Likewise.
1627         * testsuite/experimental/net/internet/network/v4/members.cc:
1628         Likewise.
1629         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
1630
1631 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1632
1633         * include/std/expected (expected::value() &): Use const lvalue
1634         for unex member passed to bad_expected_access constructor, as
1635         per LWG 3843.
1636
1637 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1638
1639         PR libstdc++/109340
1640         * include/std/expected (expected::transform): Use
1641         std::remove_cv_t instead of std::remove_cvref_t.
1642         (expected::transform_error): Likewise.
1643         (expected<cv void, E>::transform): Likewise.
1644         (expected<cv void, E>::transform_error): Likewise.
1645         * include/std/optional (transform): Use std::remove_cv_t.
1646         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
1647
1648 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1649
1650         * include/std/optional (optional): Adjust static assertion to
1651         reject arrays and functions as well as references.
1652         * testsuite/20_util/optional/requirements_neg.cc: New test.
1653
1654 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1655
1656         PR libstdc++/103387
1657         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
1658         std::use_facet instead of cached _M_num_get facet.
1659         (istream::operator>>(short&)): Likewise.
1660         (istream::operator>>(int&)): Likewise.
1661         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
1662         std::use_facet instead of cached _M_num_put facet.
1663
1664 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1665
1666         * include/bits/char_traits.h (char_traits::copy): Return without
1667         using memcpy if n==0.
1668         (char_traits::assign): Likewise for memset.
1669
1670 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1671
1672         PR libstdc++/109299
1673         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
1674         hint for compiler that local strings fit in the local buffer.
1675
1676 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1677
1678         PR libstdc++/109288
1679         * include/std/chrono (__detail::__get_leap_second_info): Update
1680         expiry date of hardcoded leapseconds list.
1681         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
1682         Likewise.
1683         * src/c++20/tzdata.zi: Import new file from 2023a release.
1684         * testsuite/std/time/time_zone/get_info_local.cc: Only check
1685         transitions for Egypt up to 2014.
1686
1687 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1688
1689         * include/experimental/bits/simd.h (is_simd_flag_type): New.
1690         (_IsSimdFlagType): New.
1691         (copy_from, copy_to, load ctors): Constrain _Flags using
1692         _IsSimdFlagType.
1693
1694 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1695
1696         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
1697         _Base::_S_divides if the optimized _S_divides function is hidden
1698         via the preprocessor.
1699
1700 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
1701
1702         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
1703         warning if size_t is not unsigned long.
1704
1705 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1706
1707         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
1708         Add overload, as per LWG 3893.
1709         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
1710         Check assignment from nullptr.
1711
1712 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1713
1714         * include/std/format (formatter<const charT[N], charT>): Do not
1715         define partial speclialization, as per LWG 3833.
1716         * testsuite/std/format/formatter/requirements.cc: Check it.
1717
1718 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1719
1720         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
1721         as per LWG 3792.
1722         * testsuite/20_util/exchange/constexpr.cc: Check for it.
1723
1724 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1725
1726         * include/std/version (__cpp_lib_format): Define.
1727         * testsuite/std/format/functions/format.cc: Check it.
1728
1729 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1730
1731         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
1732         Pass rvalues to the callback, as now allowed by LWG 3645.
1733         Enforce preconditions on the return value.
1734         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
1735         Adjust.
1736
1737 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1738
1739         * include/std/format: Add a comment noting that the resolution
1740         of LWG 3720 has been applied..
1741
1742 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1743
1744         * include/bits/regex.h (match_results): Add allocator-extended
1745         copy and move constructors, as per LWG 2195.
1746         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
1747
1748 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1749
1750         * include/bits/stream_iterator.h (istream_iterator): Add
1751         constexpr to copy constructor, as per LWG 3600.
1752         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
1753         Check copy construction.
1754
1755 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1756
1757         * include/experimental/bits/simd_x86.h
1758         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
1759         with __RECIPROCAL_MATH__.
1760
1761 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1762
1763         * include/experimental/bits/simd_detail.h: Don't define
1764         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
1765         * include/experimental/bits/simd_x86.h (_S_divides): Remove
1766         check for __clang__.
1767
1768 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1769
1770         * include/experimental/bits/simd_detail.h: Don't declare the
1771         simd API as constexpr with Clang.
1772         * include/experimental/bits/simd_x86.h (__movm): New.
1773         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
1774         and ?:.
1775         (_SimdImplX86::_S_masked_unary): Clang does not implement the
1776         same builtins. Implement the function using __movm, ?:, and -
1777         operators on vector_size types instead.
1778
1779 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1780
1781         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
1782         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
1783
1784 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1785
1786         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
1787         formatting.
1788
1789 2023-03-20  Marek Polacek  <polacek@redhat.com>
1790
1791         PR c++/109159
1792         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
1793         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
1794         * testsuite/23_containers/span/explicit.cc: Likewise.
1795
1796 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1797
1798         PR libstdc++/109182
1799         * include/std/expected (expected<void>::expected(in_place_t)):
1800         Remove template-head.
1801
1802 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
1803
1804         PR libstdc++/109165
1805         * testsuite/18_support/coroutines/hash.cc: Use const object
1806         in second call.
1807
1808 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
1809
1810         PR libstdc++/109165
1811         * include/std/coroutine (hash<>::operator()): Add const.
1812         * testsuite/18_support/coroutines/hash.cc: New test.
1813
1814 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1815
1816         PR libstdc++/109111
1817         * include/std/ranges (repeat_view): Remove redundant parentheses
1818         in requires-clause.
1819         (repeat_view::_Iterator): Correct the requires-clause.
1820
1821 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1822
1823         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
1824         Define.
1825         (__cpp_lib_move_iterator_concept): Define for C++20.
1826         (move_iterator::iterator_concept): Strengthen as per P2520R0.
1827         * include/std/version (__cpp_lib_move_iterator_concept): Define
1828         for C++20.
1829         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
1830
1831 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1832
1833         * include/bits/ranges_util.h (view_interface::empty): Add
1834         preferred overloads that use ranges::size when the range is
1835         sized as per LWG 3715.
1836         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
1837
1838 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1839
1840         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
1841         Only define for C++17 and later.
1842
1843 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1844
1845         * src/Makefile.am: Add comment about linker script fragments.
1846         * src/Makefile.in: Regenerate.
1847
1848 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1849
1850         PR libstdc++/62196
1851         * include/bits/mask_array.h (mask_array): Add assertions to
1852         assignment operators.
1853         * include/std/valarray (valarray::operator[](valarray<bool>)):
1854         Add assertions.
1855         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
1856         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
1857         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
1858         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
1859         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
1860         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
1861         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
1862         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
1863         * testsuite/26_numerics/valarray/mask.cc: New test.
1864
1865 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
1866
1867         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1868         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1869
1870 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1871
1872         * doc/Makefile.am: Add comment referring to documentation.
1873         * doc/Makefile.in: Regenerate.
1874
1875 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1876
1877         * doc/html/*: Regenerate.
1878
1879 2023-03-13  Jonny Grant  <jg@jguk.org>
1880
1881         * doc/xml/faq.xml: Update copyright year.
1882
1883 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1884
1885         * include/bits/allocator.h: Fix typo in comment.
1886
1887 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
1888
1889         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
1890         if it isn't mangled as DF16b but u6__bf16.
1891
1892 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
1893
1894         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
1895         to https.
1896         * doc/html/manual/documentation_hacking.html: Regenerate.
1897
1898 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
1899
1900         PR libstdc++/109064
1901         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
1902         Remove self-recursion in __init__. Add missing _supports.
1903         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
1904         and unique().
1905
1906 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1907
1908         * include/std/ranges
1909         (cartesian_product_view::_Iterator::_Iterator): Remove
1910         constraint on default constructor as per LWG 3849.
1911         (cartesian_product_view::_Iterator::_M_prev): Adjust position
1912         of _Nm > 0 test as per LWG 3820.
1913         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
1914         checking only on sized cartesian products.
1915         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
1916
1917 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1918
1919         PR libstdc++/109024
1920         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
1921         LWG 3796.
1922         (repeat_view::_M_pred): Likewise.
1923         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
1924         * testsuite/std/ranges/repeat/1.cc (test05): New test.
1925
1926 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1927
1928         PR libstdc++/108362
1929         * include/std/ranges (__detail::__can_single_view): New concept.
1930         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
1931         end of the function declarator.
1932         (__detail::__can_iota_view): New concept.
1933         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
1934         end of the function declarator.
1935         (__detail::__can_istream_view): New concept.
1936         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
1937         end of the function declarator.
1938         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
1939         * testsuite/std/ranges/istream_view.cc (test08): New test.
1940         * testsuite/std/ranges/single_view.cc (test07): New test.
1941
1942 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1943
1944         PR libstdc++/107572
1945         * include/std/ranges (cartesian_product_view::end): When
1946         building the tuple of iterators, avoid calling ranges::begin on
1947         the first range if __empty_tail is false.
1948         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
1949
1950 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
1951
1952         PR libstdc++/108882
1953         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
1954         patterns.
1955
1956 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
1957
1958         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1959         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
1960         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
1961         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1962         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1963
1964 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
1965
1966         PR libstdc++/108882
1967         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
1968         not match symbols in namespace std::__gnu_cxx11_ieee128.
1969         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
1970         std::__gnu_cxx11_ieee128::money_{get,put}.
1971
1972 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
1973
1974         * libsupc++/eh_personality.cc: Fix spelling in comment.
1975
1976 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1977
1978         * testsuite/30_threads/async/async.cc (test04): Initialize
1979         steady_start, renamed from steady_begin, next to slow_start.
1980         Increase tolerance for final wait.
1981
1982 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1983
1984         * testsuite/libstdc++-prettyprinters/80276.cc: Add
1985         std::string to debug info.
1986         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
1987
1988 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1989
1990         PR libstdc++/104852
1991         PR libstdc++/95989
1992         PR libstdc++/52590
1993         * include/bits/std_thread.h (thread::_M_thread_deps): New
1994         static implicitly-inline member function.
1995         (std::thread template ctor): Pass it to _M_start_thread.
1996         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
1997         parameter, force it live on entry.
1998
1999 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2000
2001         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
2002         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
2003         Likewise.
2004         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
2005         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
2006         Likewise.
2007
2008 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
2009
2010         * include/bits/cow_string.h: Fix typo in comment.
2011
2012 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
2013
2014         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
2015         current time zone cannot be determined.
2016         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
2017         HAVE_TZDB macro and test all members unconditionally.
2018
2019 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
2020
2021         PR libstdc++/108952
2022         * include/bits/uses_allocator_args.h
2023         (uses_allocator_construction_args): Implement LWG 3527.
2024         * testsuite/20_util/pair/astuple/get-2.cc: New test.
2025         * testsuite/20_util/scoped_allocator/108952.cc: New test.
2026         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
2027
2028 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
2029
2030         PR libstdc++/108846
2031         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
2032         Add __assign_one static member function.
2033         (__copy_move<true, false, RA>): Likewise.
2034         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
2035         value.
2036         (__copy_move_backward<IsMove, true, RA>): Likewise.
2037         * testsuite/25_algorithms/copy/108846.cc: New test.
2038         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
2039         * testsuite/25_algorithms/copy_n/108846.cc: New test.
2040         * testsuite/25_algorithms/move/108846.cc: New test.
2041         * testsuite/25_algorithms/move_backward/108846.cc: New test.
2042
2043 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
2044
2045         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
2046         attributes.
2047
2048 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
2049
2050         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
2051         caveat to comment.
2052         * include/bits/basic_string.h (resize_and_overwrite): Add
2053         doxygen comment.
2054
2055 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
2056
2057         * include/experimental/bits/simd.h: Line breaks and indenting
2058         fixed to follow the libstdc++ standard.
2059         * include/experimental/bits/simd_builtin.h: Likewise.
2060         * include/experimental/bits/simd_fixed_size.h: Likewise.
2061         * include/experimental/bits/simd_neon.h: Likewise.
2062         * include/experimental/bits/simd_ppc.h: Likewise.
2063         * include/experimental/bits/simd_scalar.h: Likewise.
2064         * include/experimental/bits/simd_x86.h: Likewise.
2065
2066 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
2067
2068         PR libstdc++/108030
2069         * include/experimental/bits/simd_fixed_size.h
2070         (_SimdImplFixedSize::_S_broadcast): Replace inline with
2071         _GLIBCXX_SIMD_INTRINSIC.
2072         (_SimdImplFixedSize::_S_generate): Likewise.
2073         (_SimdImplFixedSize::_S_load): Likewise.
2074         (_SimdImplFixedSize::_S_masked_load): Likewise.
2075         (_SimdImplFixedSize::_S_store): Likewise.
2076         (_SimdImplFixedSize::_S_masked_store): Likewise.
2077         (_SimdImplFixedSize::_S_min): Likewise.
2078         (_SimdImplFixedSize::_S_max): Likewise.
2079         (_SimdImplFixedSize::_S_complement): Likewise.
2080         (_SimdImplFixedSize::_S_unary_minus): Likewise.
2081         (_SimdImplFixedSize::_S_plus): Likewise.
2082         (_SimdImplFixedSize::_S_minus): Likewise.
2083         (_SimdImplFixedSize::_S_multiplies): Likewise.
2084         (_SimdImplFixedSize::_S_divides): Likewise.
2085         (_SimdImplFixedSize::_S_modulus): Likewise.
2086         (_SimdImplFixedSize::_S_bit_and): Likewise.
2087         (_SimdImplFixedSize::_S_bit_or): Likewise.
2088         (_SimdImplFixedSize::_S_bit_xor): Likewise.
2089         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
2090         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
2091         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
2092         explicit about not always-inline, yet).
2093         (_SimdImplFixedSize::_S_isinf): Likewise.
2094         (_SimdImplFixedSize::_S_isfinite): Likewise.
2095         (_SimdImplFixedSize::_S_isnan): Likewise.
2096         (_SimdImplFixedSize::_S_isnormal): Likewise.
2097         (_SimdImplFixedSize::_S_signbit): Likewise.
2098
2099 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
2100
2101         PR libstdc++/108856
2102         * include/experimental/bits/simd_builtin.h
2103         (_SimdImplBuiltin::_S_masked_unary): More efficient
2104         implementation of masked inc-/decrement for integers and floats
2105         without AVX2.
2106         * include/experimental/bits/simd_x86.h
2107         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
2108         builtins for masked inc-/decrement.
2109
2110 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2111
2112         * include/experimental/executor (executor): Constrain template
2113         constructors.
2114
2115 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2116
2117         * include/experimental/internet (basic_endpoint): Add missing
2118         constexpr to comparison operators.
2119         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
2120
2121 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2122
2123         * include/experimental/internet (network_v4::netmask()): Avoid
2124         undefined shift.
2125         (network_v4::broadcast()): Optimize and fix for targets with
2126         uint_least32_t wider than 32 bits.
2127         (network_v4::to_string(const Allocator&)): Fix for custom
2128         allocators and optimize using to_chars.
2129         (operator==(const network_v4&, const network_v4&)): Add missing
2130         constexpr.
2131         (operator==(const network_v6&, const network_v6&)): Likewise.
2132         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
2133         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
2134
2135 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2136
2137         * include/experimental/internet (address_4(const bytes_type&)):
2138         Use __builtin_bit_cast if available, otherwise convert to
2139         network byte order.
2140         (address_v4::to_bytes()): Likewise, but convert from network
2141         byte order.
2142         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
2143         incorrect tests. Check for constexpr too.
2144         * testsuite/experimental/net/internet/address/v4/creation.cc:
2145         Likewise.
2146         * testsuite/experimental/net/internet/address/v4/members.cc:
2147         Check that bytes_type is a standard-layout type.
2148
2149 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2150
2151         * include/experimental/internet (address_v4::to_string):
2152         Optimize.
2153         * testsuite/experimental/net/internet/address/v4/members.cc:
2154         Check more addresses.
2155
2156 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2157
2158         * include/ext/aligned_buffer.h (__aligned_buffer): Add
2159         diagnostic pragmas.
2160
2161 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2162
2163         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
2164         before dg-do.
2165
2166 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2167
2168         * testsuite/experimental/simd/tests/reductions.cc: Introduce
2169         max_distance as the type-dependent max error.
2170
2171 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2172
2173         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
2174         int. The actual range of these indexes is very small.
2175
2176 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2177
2178         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
2179         (_S_bit_shift_right): Declare constexpr. The implementation was
2180         already expecting constexpr evaluation.
2181
2182 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2183
2184         PR libstdc++/108030
2185         * include/experimental/bits/simd_detail.h
2186         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
2187         __clang__.
2188
2189 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2190
2191         PR libstdc++/108030
2192         * include/experimental/bits/simd.h (__vector_broadcast):
2193         Implement via __vector_broadcast_impl instead of
2194         __call_with_n_evaluations + 2 lambdas.
2195         (__vector_broadcast_impl): New.
2196
2197 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2198
2199         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
2200         Avoid destruction of the mutex pool.
2201
2202 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2203
2204         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
2205         on vxworks.
2206         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
2207         Likewise.
2208
2209 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2210
2211         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
2212         kernel mode.
2213
2214 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
2215
2216         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
2217
2218 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
2219
2220         * include/experimental/bits/simd.h (__extract_part, split):
2221         Use reserved name for template parameter.
2222
2223 2023-02-20  Andreas Schwab  <schwab@suse.de>
2224
2225         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
2226
2227 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
2228
2229         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
2230         * doc/html/faq.html: Regenerate.
2231
2232 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2233
2234         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
2235         between scalars requires the __bit_cast helper function instead
2236         of simd_bit_cast.
2237
2238 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2239
2240         * include/experimental/bits/simd_x86.h
2241         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
2242         (_SimdImplX86::_S_less_equal): Do not call
2243         __builtin_is_constant_evaluated in constexpr-if.
2244
2245 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2246
2247         * testsuite/experimental/simd/tests/bits/verify.h
2248         (verify::verify): Use %zx for size_t in format string.
2249
2250 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2251
2252         * testsuite/experimental/simd/generate_makefile.sh: Generate and
2253         pre-compile pch.h, which includes all headers that do not depend
2254         on command-line macros.
2255         * testsuite/experimental/simd/tests/bits/main.h: New file.
2256         (iterate_abis, main): Moved from verify.h.
2257         * testsuite/experimental/simd/tests/bits/verify.h
2258         (iterate_abis, main): Moved to main.h.
2259         * testsuite/experimental/simd/tests/bits/conversions.h: Add
2260         include guard.
2261         (genHalfBits): Simplify.
2262         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
2263         guard.
2264         (make_alternating_mask): Moved from mask_loadstore.
2265         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
2266         include guard.
2267         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
2268         * testsuite/experimental/simd/tests/mask_loadstore.cc
2269         (make_mask, make_alternating_mask): Removed.
2270         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
2271         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
2272         Removed.
2273         * testsuite/experimental/simd/tests/abs.cc: Only include
2274         bits/main.h.
2275         Ditto.
2276         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
2277         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
2278         * testsuite/experimental/simd/tests/casts.cc: Ditto.
2279         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
2280         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
2281         * testsuite/experimental/simd/tests/generator.cc: Ditto.
2282         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
2283         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
2284         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
2285         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
2286         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
2287         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
2288         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
2289         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
2290         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
2291         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
2292         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
2293         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
2294         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
2295         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
2296         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
2297         * testsuite/experimental/simd/tests/simd.cc: Ditto.
2298         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
2299         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
2300         * testsuite/experimental/simd/tests/splits.cc: Ditto.
2301         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
2302         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
2303         * testsuite/experimental/simd/tests/where.cc: Ditto.
2304
2305 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2306
2307         * testsuite/experimental/simd/README.md: Document the timeout
2308         and timeout-factor directives. Minor typo fixed.
2309
2310 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2311
2312         PR libstdc++/108030
2313         * include/experimental/bits/simd_detail.h: Define
2314         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
2315         * include/experimental/bits/simd.h: Annotate lambdas with
2316         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
2317         * include/experimental/bits/simd_builtin.h: Ditto.
2318         * include/experimental/bits/simd_converter.h: Ditto.
2319         * include/experimental/bits/simd_fixed_size.h: Ditto.
2320         * include/experimental/bits/simd_math.h: Ditto.
2321         * include/experimental/bits/simd_neon.h: Ditto.
2322         * include/experimental/bits/simd_x86.h: Ditto.
2323
2324 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2325
2326         * include/experimental/bits/simd.h
2327         (_SimdWrapper::_M_is_constprop_none_of)
2328         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
2329         computed result still satisfies __builtin_constant_p.
2330
2331 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2332
2333         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
2334         ellipsis character.
2335
2336 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2337
2338         * include/Makefile.am: Add new header.
2339         * include/Makefile.in: Regenerate.
2340         * include/experimental/synchronized_value: New file.
2341         * testsuite/experimental/synchronized_value.cc: New test.
2342
2343 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2344
2345         * include/experimental/optional: Fix header name in comment.
2346
2347 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2348
2349         * include/std/format (__format::_Arg_store): New class template.
2350         (basic_format_args): Remove nested type _Store and add deduction
2351         guide from _Arg_store.
2352         (basic_format_arg, make_format_args): Adjust.
2353         * testsuite/std/format/arguments/lwg3810.cc: New test.
2354
2355 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2356
2357         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
2358         constraints to constructors and add deleted overloads for the
2359         dangling cases, as per P2255R2.
2360         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
2361         make dangling cases ill-formed.
2362         * testsuite/20_util/pair/dangling_ref.cc: New test.
2363
2364 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2365
2366         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
2367
2368 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2369
2370         * include/ext/throw_allocator.h: Use reserved names for
2371         parameters.
2372
2373 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2374
2375         * testsuite/17_intro/names_pstl.cc: Add space after effective
2376         target name.
2377
2378 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2379
2380         * include/pstl/algorithm_fwd.h (__pattern_search_n)
2381         (__brick_unique_copy, __brick_adjacent_find)
2382         (__brick_generate_n, __pattern_generate_n): Use reserved names
2383         for parameters.
2384         * include/pstl/algorithm_impl.h (__brick_unique_copy)
2385         (__pattern_reverse, __brick_generate_n): Likewise.
2386         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
2387         (__prefer_parallel_tag): Likewise.
2388         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
2389         * include/pstl/glue_numeric_defs.h (adjacent_difference):
2390         Likewise.
2391         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
2392         Likewise.
2393         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
2394         * include/pstl/unseq_backend_simd.h (_Combiner)
2395         (__simd_min_element, __simd_minmax_element): Likewise.
2396         * testsuite/17_intro/names_pstl.cc: New test.
2397
2398 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2399
2400         * include/bits/fs_ops.h (create_directory): Use reserved name
2401         for parameter.
2402         * include/bits/ranges_algo.h (__contains_subrange_fn):
2403         Likewise.
2404         * include/bits/regex_automaton.h (_State_base::_M_print):
2405         Likewise.
2406         * include/bits/regex_automaton.tcc(_State_base::_M_print):
2407         Likewise.
2408         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
2409         * include/experimental/bits/fs_ops.h (create_directory):
2410         Likewise.
2411         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
2412         (recursive_timed_mutex:_M_clocklock): Likewise.
2413         * include/std/tuple (basic_common_reference): Likewise.
2414         * libsupc++/cxxabi_init_exception.h
2415         (__cxa_init_primary_exception): Likewise.
2416         * testsuite/17_intro/names.cc: Add checks.
2417
2418 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
2419
2420         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
2421         to www.open-std.org and https.
2422         * doc/html/manual/status.html: Regenerate.
2423
2424 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
2425
2426         PR libstdc++/103934
2427         * include/std/atomic (atomic_flag_wait): Add.
2428         (atomic_flag_wait_explicit): Add.
2429         (atomic_flag_notify): Add.
2430         (atomic_flag_notify_explicit): Add.
2431         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
2432         Add test case to cover missing atomic_flag free functions.
2433
2434 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
2435
2436         PR libstdc++/103934
2437         * include/std/atomic (atomic_flag_test): Add.
2438         (atomic_flag_test_explicit): Add.
2439         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
2440         test case to cover missing atomic_flag free functions.
2441         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
2442         Likewise.
2443
2444 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
2445
2446         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
2447         "The Component Object Model" reference.
2448         * doc/html/manual/policy_data_structures.html: Regenerate.
2449
2450 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
2451
2452         * doc/xml/manual/containers.xml: Tweak a link to N1780
2453         (C++ standard).
2454         * doc/html/manual/associative.html: Regenerate.
2455
2456 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
2457
2458         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
2459         * doc/html/manual/facets.html: Regenerate.
2460
2461 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
2462
2463         * doc/xml/manual/policy_data_structures_biblio.xml: Update
2464         link to "Worst-case efficient priority queues".
2465         * doc/html/manual/policy_data_structures.html: Regenerate.
2466
2467 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2468
2469         * doc/xml/manual/using.xml: Document newly-freestanding
2470         headers and the effect of the -ffreestanding flag.
2471         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
2472         completed.
2473         * doc/xml/manual/configure.xml: Document that hosted installs
2474         respect __STDC_HOSTED__.
2475         * doc/xml/manual/test.xml: Document how to run tests in
2476         freestanding mode.
2477         * doc/html/*: Regenerate.
2478
2479 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2480
2481         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
2482         (__find_last_if_fn): Likewise.
2483
2484 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2485
2486         * include/std/type_traits: Add diagnostic pragmas around
2487         references to deprecated std::aligned_storage and
2488         std::aligned_union traits.
2489         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
2490         Add dg-warning for et c++23.
2491         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
2492         Likewise.
2493         * testsuite/20_util/aligned_storage/value.cc: Likewise.
2494         * testsuite/20_util/aligned_union/1.cc: Likewise.
2495         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
2496         Likewise.
2497
2498 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2499
2500         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
2501         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
2502         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
2503         * include/std/type_traits (aligned_storage, aligned_union)
2504         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
2505         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
2506         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
2507
2508 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2509
2510         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
2511         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
2512         consistent with other 'deprecated' macros.
2513         * include/std/type_traits (is_pod, is_pod_v): Use
2514         _GLIBCXX20_DEPRECATED_SUGGEST instead.
2515
2516 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2517
2518         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
2519         * Makefile.in: Regenerate.
2520         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
2521         There's no history to be compatible with.
2522         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
2523         source files from the build.
2524         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2525         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2526         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2527         * src/Makefile.in: Regenerate.
2528         * src/c++11/Makefile.in: Regenerate.
2529         * src/c++17/Makefile.in: Regenerate.
2530         * src/c++20/Makefile.in: Regenerate.
2531         * src/c++98/Makefile.in: Regenerate.
2532
2533 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2534
2535         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
2536         filesystem, libbacktrace and experimental.
2537         * src/Makefile.in: Regenerate.
2538
2539 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
2540
2541         PR libstdc++/108672
2542         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
2543         instead of int32_t.
2544
2545 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
2546
2547         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
2548         * doc/html/manual/documentation_hacking.html: Regenerate.
2549
2550 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
2551
2552         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
2553         storage to the move-from instance when allocators are equal.
2554         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
2555         New test case.
2556
2557 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
2558
2559         * config/os/gnu-linux/os_defines.h [!__linux__]
2560         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
2561
2562 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2563
2564         * include/bits/ranges_algo.h (__find_last_fn, find_last):
2565         Define.
2566         (__find_last_if_fn, find_last_if): Define.
2567         (__find_last_if_not_fn, find_last_if_not): Define.
2568         * testsuite/25_algorithms/find_last/1.cc: New test.
2569         * testsuite/25_algorithms/find_last_if/1.cc: New test.
2570         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
2571
2572 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2573
2574         * include/bits/ranges_algo.h (out_value_result): Define.
2575         (iota_result): Define.
2576         (__iota_fn, iota): Define.
2577         * testsuite/25_algorithms/iota/1.cc: New test.
2578
2579 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2580
2581         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
2582         (__contains_subrange_fn, contains_subrange): Define.
2583         * testsuite/25_algorithms/contains/1.cc: New test.
2584         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
2585
2586 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2587
2588         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
2589         * doc/html/manual/abi.html: Regenerate.
2590
2591 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2592
2593         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
2594         errc::function_not_supported instead of errc::not_supported.
2595
2596 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2597
2598         * include/std/sstream  (basic_stringbuf::view): Define for old
2599         std::string ABI.
2600         (basic_istringstream::view, basic_0stringstream::view)
2601         (basic_stringstream::view): Likewise.
2602         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
2603         { dg-require-effective-target cxx11_abi }.
2604         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
2605         Likewise.
2606         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
2607         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
2608         Likewise.
2609         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
2610         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
2611         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
2612         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
2613         Likewise.
2614
2615 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2616
2617         PR libstdc++/108636
2618         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
2619         conversion operators for directory iterator comparisons with
2620         std::default_sentinel_t.
2621         * include/bits/fs_path.h (path::path(string_view, _Type))
2622         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
2623         definitions to ...
2624         * src/c++17/fs_path.cc: ... here.
2625         * testsuite/27_io/filesystem/path/108636.cc: New test.
2626
2627 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2628
2629         * include/std/variant (variant::operator=): Implement resolution
2630         of LWG 3585.
2631         * testsuite/20_util/variant/lwg3585.cc: New test.
2632
2633 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2634
2635         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
2636         link to https.
2637         * doc/html/manual/using_exceptions.html: Regenerate.
2638
2639 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2640
2641         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
2642         * doc/html/manual/debug.html: Regenerate.
2643
2644 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2645
2646         * src/c++11/random.cc (random_device::_M_fini): Do not try to
2647         close the file handle if the target doesn't support the
2648         /dev/random and /dev/urandom files.
2649
2650 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2651
2652         * config/os/generic/error_constants.h (errc::value_too_large)
2653         [__AVR__]: Define.
2654         * src/c++11/system_error.cc
2655         (system_category::default_error_condition) [__AVR__]: Only match
2656         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
2657         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
2658         for ENOENT etc. in switch.
2659         (fs::remove_all) [__AVR__]: Likewise.
2660         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
2661         close etc.
2662
2663 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2664
2665         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
2666         embed_zoneinfo=no
2667         * configure: Regenerate.
2668
2669 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
2670
2671         PR testsuite/108632
2672         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
2673         struct at end of S0.
2674
2675 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
2676
2677         * doc/xml/manual/shared_ptr.xml: Move links from both
2678         http://open-std.org and http://www.open-std.org to
2679         https://www.open-std.org.
2680         * doc/html/manual/memory.html: Regenerate.
2681
2682 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2683
2684         * doc/xml/manual/appendix_contributing.xml: Adjust link to
2685         ISO C++ standard at ANSI.
2686         Move link to www.open-std.org to https.
2687         * doc/html/manual/appendix_contributing.html: Regenerate.
2688
2689 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2690
2691         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
2692         links to https.
2693         * doc/html/manual/documentation_hacking.html: Regenerate.
2694
2695 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2696
2697         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
2698         * doc/html/manual/abi.html: Regenerate.
2699
2700 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
2701
2702         PR libstdc++/108568
2703         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
2704         include features.h if present and then check __GLIBC__ and
2705         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
2706         __GLIBC_PREREQ which isn't defined yet.
2707
2708 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2709
2710         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
2711         string literal.
2712
2713 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2714
2715         PR libstdc++/108554
2716         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
2717
2718 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2719
2720         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
2721         rules named "+" for compatibility with older tzdata.zi files.
2722
2723 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2724
2725         PR libstdc++/108554
2726         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
2727         nonnull attribute.
2728         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
2729         attributes.
2730         * testsuite/23_containers/map/modifiers/108554.cc: New test.
2731
2732 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2733
2734         PR libstdc++/108530
2735         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
2736         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
2737
2738 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
2739
2740         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
2741         use https.
2742         * doc/html/manual/bugs.html: Regenerate.
2743
2744 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2745
2746         PR libstdc++/108530
2747         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
2748         /etc/sysconfig/clock.
2749
2750 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2751
2752         PR libstdc++/102301
2753         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
2754         std::make_reverse_iterator.
2755         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
2756         (make_from_tuple): Add static assertion from P2255 to diagnose
2757         dangling references.
2758         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
2759         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
2760
2761 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
2762
2763         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
2764         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
2765         (_Safe_iterator::operator++(int)): Use latter.
2766         (_Safe_iterator::operator--(int)): Likewise.
2767         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
2768         check.
2769         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
2770         New.
2771         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
2772         (_Safe_local_iterator::operator++(int)): Use latter.
2773         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
2774         entry associated to the array entry.
2775
2776 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2777
2778         * include/bits/fs_path.h (u8path): Add deprecated attribute.
2779         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
2780         -Wno-deprecated-declarations for C++20 and later.
2781         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
2782         Likewise.
2783         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
2784         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
2785         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
2786
2787 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2788
2789         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
2790         Always call _M_fini and _M_getentropy.
2791
2792 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
2793
2794         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
2795         to www.open-std.org to use https.
2796         (COM: Component Model Object Technologies): Rename from...
2797         (The Component Object Model): ...to.
2798         * doc/html/manual/policy_data_structures.html: Regenerate.
2799
2800 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
2801
2802         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
2803         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
2804         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
2805
2806 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
2807
2808         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
2809         of $host. Fix check for file being present during native build.
2810         * configure: Regenerate.
2811
2812 2023-01-17  Martin Liska  <mliska@suse.cz>
2813
2814         * src/libbacktrace/Makefile.in: Regenerate.
2815
2816 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2817
2818         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
2819
2820 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2821
2822         PR libstdc++/108413
2823         * include/c_compatibility/stdatomic.h: Change copyright line to
2824         be consistent with other headers contributed under DCO terms.
2825         * include/std/expected: Add full stop to copyright line.
2826         * src/c++20/tzdb.cc: Likewise.
2827
2828 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
2829
2830         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
2831         https.
2832         * doc/xml/manual/status_cxx2017.xml: Ditto.
2833         * doc/xml/manual/status_cxx2020.xml: Ditto.
2834         * doc/xml/manual/status_cxx2023.xml: Ditto.
2835         * doc/html/manual/status.html: Regenerate.
2836
2837 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2838
2839         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
2840         and fail gracefully if defining the weak symbol doesn't work.
2841
2842 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
2843
2844         PR libstdc++/108288
2845         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
2846         fix to other iterator category.
2847         (_Safe_iterator<>::operator--(int)): Likewise.
2848         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
2849         Fix deadlock.
2850         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
2851         (invalid_local_iterator_post_increment): New.
2852         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
2853         New test.
2854         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
2855         New test.
2856
2857 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2858
2859         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
2860         dg-options.
2861
2862 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2863
2864         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
2865
2866 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
2867
2868         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
2869         windows.h. Add pecoff as FORMAT_FILE.
2870         * config.h.in: Regenerate.
2871         * configure: Regenerate.
2872         * src/libbacktrace/Makefile.am: Regenerate.
2873         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
2874
2875 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
2876
2877         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
2878         raw __name if __cxa_demangle could not demangle it.
2879
2880 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2881
2882         PR libstdc++/108409
2883         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
2884         variable.
2885
2886 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2887
2888         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
2889         loading tzdb.
2890         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
2891         effective target.
2892         * testsuite/std/time/tzdb_list/1.cc: Likewise.
2893
2894 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2895
2896         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
2897         --with-libstdcxx-zoneinfo-dir configure option with
2898         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
2899         a directory.
2900         * config.h.in: Regenerate.
2901         * configure: Regenerate.
2902         * doc/xml/manual/configure.xml: Document configure option.
2903         * doc/html/manual/configure.html: Regenerate.
2904         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
2905         * src/c++20/Makefile.in: Regenerate.
2906         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
2907         null pointer if no directory is configured.
2908         (zoneinfo_dir): Replace with ...
2909         (zoneinfo_file): New function.
2910         (tzdata_stream): New istream class.
2911         (remote_version, reload_tzdb): Use tzdata_stream.
2912         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
2913         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
2914         tzdata.zi file in default location.
2915         * src/c++20/tzdata.zi: New file.
2916
2917 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2918
2919         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
2920         * testsuite/std/time/month_day/io.cc: New test.
2921         * testsuite/std/time/month_day_last/io.cc: New test.
2922         * testsuite/std/time/month_weekday/io.cc: New test.
2923         * testsuite/std/time/month_weekday_last/io.cc: New test.
2924         * testsuite/std/time/weekday_indexed/io.cc: New test.
2925         * testsuite/std/time/weekday_last/io.cc: New test.
2926         * testsuite/std/time/year_month/io.cc: New test.
2927         * testsuite/std/time/year_month_day_last/io.cc: New test.
2928         * testsuite/std/time/year_month_weekday/io.cc: New test.
2929         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
2930
2931 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
2932
2933         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
2934         specifications.
2935         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
2936         export.
2937
2938 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2939
2940         * include/bits/std_mutex.h: Include <errno.h>.
2941
2942 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
2943
2944         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
2945         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
2946         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
2947         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
2948         std::make_unique with a freestanding-compatible wrapper around
2949         unique_ptr.
2950         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
2951         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
2952         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
2953         Ditto.
2954         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
2955         of __cpp_lib_ranges in !HOSTED.
2956
2957 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
2958
2959         * include/Makefile.am: Install bits/char_traits.h,
2960         std/string_view
2961         * include/Makefile.in: Regenerate.
2962         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
2963         mbstate-only bits behind appropriate #ifs.
2964         * include/std/string_view: Gate <iostream> functionality behind
2965         HOSTED.
2966         * include/std/version: Enable __cpp_lib_constexpr_string_view
2967         and __cpp_lib_starts_ends_with in !HOSTED.
2968         * include/std/ranges: Re-enable __is_basic_string_view on
2969         freestanding, include <string_view> directly.
2970         * include/precompiled/stdc++.h: Include <string_view> when
2971         !HOSTED too.
2972         * testsuite/20_util/function_objects/searchers.cc: Skip testing
2973         boyer_moore searchers on freestanding
2974         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
2975         <string>-related tests behind __STDC_HOSTED__.
2976         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
2977         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
2978         unused <stdexcept> include.
2979         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
2980         unused <vector> include.
2981         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
2982         Guard <string> related testing behind __STDC_HOSTED__.
2983         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
2984         Guard <stdexcept> related tests behind __STDC_HOSTED__.
2985         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
2986         Ditto.
2987         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
2988         Guard <stdexcept> tests behind __STDC_HOSTED__.
2989         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
2990         Enable test on freestanding, guard <stdexcept> bits behind
2991         __STDC_HOSTED__.
2992         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
2993         Guard <stdexcept> bits behind __STDC_HOSTED__.
2994         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
2995         Ditto.
2996
2997 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
2998
2999         PR libstdc++/86419
3000         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
3001         errors in incomplete multibyte sequences.
3002         (utf16_in): Remove surrogates parameter. Fix conditions for
3003         returning partial.
3004         (utf16_out): Fix condition for returning partial.
3005         (ucs2_in): Do not pass surrogates argument to utf16_in.
3006         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
3007         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
3008         tests.
3009         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
3010         test.
3011
3012 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
3013
3014         PR libstdc++/108331
3015         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
3016         __GTHREAD_LEGACY_MUTEX_T if defined.
3017
3018 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
3019
3020         PR libstdc++/108327
3021         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
3022         Export __try_use_facet specializations for facets in namespace
3023         __gnu_cxx_ldbl128.
3024         * config/os/gnu-linux/ldbl-ieee128-extra.ver
3025         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
3026         __gnu_cxx_ieee128.
3027         * testsuite/util/testsuite_abi.cc: Add to lists of known and
3028         latest versions.
3029
3030 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
3031
3032         * include/bits/std_mutex.h: Remove <system_error> include.
3033         * include/std/condition_variable: Add <bits/error_constants.h>
3034         include.
3035         * include/std/mutex: Likewise.
3036         * include/std/shared_mutex: Likewise.
3037
3038 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
3039
3040         PR libstdc++/77691
3041         * include/experimental/memory_resource
3042         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
3043         (do_allocate, do_deallocate): Check it.
3044         * testsuite/experimental/memory_resource/new_delete_resource.cc:
3045         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
3046
3047 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
3048
3049         * doc/xml/manual/abi.xml: Add latest library versions.
3050         * doc/html/manual/abi.html: Regenerate.
3051
3052 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
3053
3054         PR libstdc++/107189
3055         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
3056         unused _Alloc_node instance.
3057
3058 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
3059
3060         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
3061         Define as unsigned long if always lock-free, and unsigned int
3062         otherwise.
3063
3064 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
3065
3066         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
3067         __catch macros for exception handling.
3068
3069 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
3070
3071         PR libstdc++/108221
3072         * include/bits/stl_algobase.h (__lg): Replace six overloads with
3073         a single function template for all integer types.
3074         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
3075         arithmetic results back to _Distance.
3076
3077 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
3078
3079         PR libstdc++/108221
3080         * include/std/span (span::span()): Un-simplify constraint to
3081         work for size_t of lesser rank than int.
3082
3083 2023-01-07  LIU Hao  <lh_mouse@126.com>
3084
3085         PR middle-end/108300
3086         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
3087         <windows.h>.
3088         * src/c++11/thread.cc: Likewise.
3089         * src/c++17/fs_ops.cc: Likewise.
3090         * src/filesystem/ops.cc: Likewise.
3091
3092 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3093
3094         PR libstdc++/108228
3095         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
3096
3097 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3098
3099         PR libstdc++/108235
3100         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
3101         template and partial specialization for synchronizing access to
3102         time_zone::_Impl::infos.
3103         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
3104         rules_counter.
3105
3106 2023-01-06  Patrick Palka  <ppalka@redhat.com>
3107
3108         PR libstdc++/108260
3109         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
3110         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
3111         (__cpp_lib_ranges_chunk): Likewise.
3112         (__cpp_lib_ranges_slide): Likewise.
3113         (__cpp_lib_ranges_chunk_by): Likewise.
3114         (__cpp_lib_ranges_join_with): Likewise.
3115         (__cpp_lib_ranges_repeat): Likewise.
3116         (__cpp_lib_ranges_stride): Likewise.
3117         (__cpp_lib_ranges_cartesian_product): Likewise.
3118         (__cpp_lib_ranges_as_rvalue): Likewise.
3119         * include/std/version: Ditto.
3120         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
3121         feature-test macro.
3122         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
3123         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
3124         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
3125         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
3126         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
3127         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
3128         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
3129         * testsuite/std/ranges/repeat/1.cc: Likewise.
3130         * testsuite/std/ranges/zip/1.cc: Likewise.
3131         * testsuite/std/ranges/version_c++23.cc: New test.
3132
3133 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3134
3135         PR libstdc++/108214
3136         * include/std/bitset (operator>>): Use alloca in the right
3137         scope, not in a constructor.
3138         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
3139
3140 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3141
3142         PR libstdc++/108221
3143         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
3144         Disable visiting floating-point types.
3145
3146 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3147
3148         PR libstdc++/108288
3149         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
3150         (_Safe_iterator::operator--(int)): Do not hold lock around
3151         construction of return value.
3152
3153 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
3154
3155         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
3156         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
3157         lock release.  Revise loop.
3158         (__atomic_add): Likewise.
3159
3160 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3161
3162         PR libstdc++/108212
3163         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
3164         variable.
3165         (StdChronoTimePointPrinter::to_string): Use it.
3166
3167 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3168
3169         PR libstdc++/108290
3170         * include/std/functional (_Bind_front): Add no_unique_address
3171         attribute to data members.
3172         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
3173         size of call wrappers with empty types for targets and bound
3174         arguments.
3175
3176 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3177
3178         PR libstdc++/108211
3179         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
3180         using only last component of the name.
3181
3182 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3183
3184         PR libstdc++/108228
3185         PR libstdc++/108235
3186         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
3187         the latest symbol version.
3188         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
3189         atomic<_Node*> is not always lock free.
3190         (USE_ATOMIC_LIST_HEAD): New macro.
3191         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
3192         definition of weak symbol.
3193         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
3194         (tzdb_list::_Node::_S_list_head): New function for accessing
3195         list head efficiently.
3196         (tzdb_list::_Node::_S_cache_list_head): New function for
3197         updating _S_list_head.
3198
3199 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3200
3201         PR libstdc++/108265
3202         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
3203         duration rep is unsigned.
3204         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
3205
3206 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
3207
3208         PR libstdc++/108228
3209         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
3210         Add __gnu_cxx::zoneinfo_dir_override().
3211
3212 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
3213
3214         PR libstdc++/108258
3215         * include/std/array (__array_traits<T, 0>::operator T*()): Add
3216         constexpr.
3217         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
3218         std::array<T, 0>::data().
3219
3220 \f
3221 Copyright (C) 2023 Free Software Foundation, Inc.
3222
3223 Copying and distribution of this file, with or without modification,
3224 are permitted in any medium without royalty provided the copyright
3225 notice and this notice are preserved.