libstdc++-v3/ChangeLog

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