libstdc++-v3/ChangeLog

   1 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         PR libstdc++/110432
   4         * acinclude.m4 (GLIBCXX_CHECK_INIT_PRIORITY): New.
   5         * config.h.in: Regenerate.
   6         * configure: Regenerate.
   7         * configure.ac: Use GLIBCXX_CHECK_INIT_PRIORITY.
   8         * include/std/iostream: Use new autoconf macro as well as
   9         __has_attribute.
  10         * src/c++98/ios_base_init.h: Use new autoconf macro instead of
  11         __has_attribute.
  12
  13 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
  14
  15         * src/c++11/random.cc (random_device::_M_init): Add maybe_unused
  16         attribute.
  17
  18 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
  19
  20         PR libstdc++/105081
  21         * src/c++11/random.cc (random_device::_M_init): Throw
  22         std::system_error when the requested device is a valid token but
  23         not available at runtime.
  24
  25 2023-06-30  Hans-Peter Nilsson  <hp@axis.com>
  26
  27         PR libstdc++/108672
  28         * include/pstl/unseq_backend_simd.h (__simd_or): Re-apply using
  29         __INT32_TYPE__ instead of int32_t.
  30
  31 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
  32
  33         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define consistently
  34         with USE_ATOMIC_LIST_HEAD.
  35         (list_mutex): Replace global object with function. Use local
  36         static object when std::mutex constructor isn't constexpr.
  37
  38 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
  39
  40         PR libstdc++/110462
  41         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check that
  42         copy_file_range can be called with loff_t* arguments.
  43         * configure: Regenerate.
  44         * src/filesystem/ops-common.h (copy_file_copy_file_range):
  45         Use loff_t for offsets.
  46
  47 2023-06-29  Tom Tromey  <tromey@adacore.com>
  48
  49         * testsuite/lib/gdb-test.exp (gdb-test): Relax type-printer
  50         regexp.
  51
  52 2023-06-28  Jan Hubicka  <jh@suse.cz>
  53
  54         PR middle-end/109849
  55         * include/bits/c++config (std::__terminate): Mark cold.
  56         * include/bits/functexcept.h: Mark everything as cold.
  57         * libsupc++/exception: Mark terminate and unexpected as cold.
  58
  59 2023-06-26  Thomas Rodgers  <trodgers@redhat.com>
  60
  61         * include/pstl/algorithm_fwd.h: Synchronize with upstream.
  62         * include/pstl/algorithm_impl.h: Likewise.
  63         * include/pstl/execution_defs.h: Likewise.
  64         * include/pstl/execution_impl.h: Likewise.
  65         * include/pstl/glue_algorithm_impl.h: Likewise.
  66         * include/pstl/glue_execution_defs.h: Likewise.
  67         * include/pstl/glue_memory_impl.h: Likewise.
  68         * include/pstl/glue_numeric_impl.h: Likewise.
  69         * include/pstl/memory_impl.h: Likewise.
  70         * include/pstl/numeric_fwd.h: Likewise.
  71         * include/pstl/numeric_impl.h: Likewise.
  72         * include/pstl/parallel_backend.h: Likewise.
  73         * include/pstl/parallel_backend_serial.h: Likewise.
  74         * include/pstl/parallel_backend_tbb.h: Likewise.
  75         * include/pstl/parallel_impl.h: Likewise.
  76         * include/pstl/pstl_config.h: Likewise.
  77         * include/pstl/unseq_backend_simd.h: Likewise.
  78         * include/pstl/utils.h: Likewise.
  79         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc:
  80         Likewise.
  81         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc:
  82         Likewise.
  83         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc:
  84         Likewise.
  85         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc:
  86         Likewise.
  87         * testsuite/25_algorithms/pstl/alg_merge/merge.cc: Likewise.
  88         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc:
  89         Likewise.
  90         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc:
  91         Likewise.
  92         * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc:
  93         Likewise.
  94         * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc:
  95         Likewise.
  96         * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc:
  97         Likewise.
  98         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc:
  99         Likewise.
 100         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc:
 101         Likewise.
 102         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc:
 103         Likewise.
 104         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc:
 105         Likewise.
 106         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc:
 107         Likewise.
 108         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc:
 109         Likewise.
 110         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc:
 111         Likewise.
 112         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc:
 113         Likewise.
 114         * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc:
 115         Likewise.
 116         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc:
 117         Likewise.
 118         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc:
 119         Likewise.
 120         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc:
 121         Likewise.
 122         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc:
 123         Likewise.
 124         * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc:
 125         Likewise.
 126         * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc:
 127         Likewise.
 128         * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc:
 129         Likewise.
 130         * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc:
 131         Likewise.
 132         * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc:
 133         Likewise.
 134         * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc:
 135         Likewise.
 136         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc:
 137         Likewise.
 138         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc:
 139         Likewise.
 140         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc:
 141         Likewise.
 142         * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc:
 143         Likewise.
 144         * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc:
 145         Likewise.
 146         * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc:
 147         Likewise.
 148         * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc:
 149         Likewise.
 150         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc:
 151         Likewise.
 152         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc:
 153         Likewise.
 154         * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc:
 155         Likewise.
 156         * testsuite/25_algorithms/pstl/alg_sorting/includes.cc:
 157         Likewise.
 158         * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc:
 159         Likewise.
 160         * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc:
 161         Likewise.
 162         * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc:
 163         Likewise.
 164         * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc:
 165         Likewise.
 166         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc:
 167         Likewise.
 168         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc:
 169         Likewise.
 170         * testsuite/25_algorithms/pstl/alg_sorting/set.cc:
 171         Likewise.
 172         * testsuite/25_algorithms/pstl/alg_sorting/sort.cc:
 173         Likewise.
 174         * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc:
 175         Likewise.
 176         * testsuite/26_numerics/pstl/numeric_ops/reduce.cc:
 177         Likewise.
 178         * testsuite/26_numerics/pstl/numeric_ops/scan.cc:
 179         Likewise.
 180         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
 181         Likewise.
 182         * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc:
 183         Likewise.
 184         * testsuite/util/pstl/test_utils.h:
 185         Likewise.
 186
 187 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
 188
 189         PR libstdc++/110239
 190         * include/std/format (__format::__parse_integer): Fix buffer
 191         overflow for wide chars.
 192         (formatter<const void*, C>::format): Cast to uintptr_t instead
 193         of uint64_t.
 194         * testsuite/std/format/string.cc: Test too-large widths.
 195
 196 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
 197
 198         * include/bits/iterator_concepts.h (projected): Replace class
 199         template with alias template denoting an ADL-proofed helper.
 200         (incremental_traits<projected<Iter, Proj>>): Remove.
 201         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
 202         New test.
 203
 204 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
 205
 206         * include/debug/helper_functions.h (__get_distance)
 207         (__check_singular, __valid_range_aux, __valid_range): Qualify
 208         calls to disable ADL.
 209         (__check_singular_aux(const _Safe_iterator_base*)): Declare
 210         overload that was previously found via ADL.
 211
 212 2023-06-23  Jonathan Wakely  <jwakely@redhat.com>
 213
 214         * include/bits/vector.tcc (_M_realloc_insert): Replace try-block
 215         with RAII types.
 216
 217 2023-06-20  Jonathan Wakely  <jwakely@redhat.com>
 218
 219         * include/std/array (to_array(T(&)[N])): Remove redundant
 220         condition.
 221         (to_array(T(&&)[N])): Remove redundant std::move.
 222
 223 2023-06-16  Alexandre Oliva  <oliva@adacore.com>
 224
 225         * testsuite/20_util/from_chars/4.cc: Skip long double on
 226         aarch64-rtems.
 227
 228 2023-06-16  Joel Brobecker  <brobecker@adacore.com>
 229
 230         * configure.ac ["x${with_newlib}" = "xyes"]: Define
 231         HAVE_HYPOTF.  Add compile-checks for various long double
 232         math functions as well.
 233         * configure: Regenerate.
 234
 235 2023-06-14  Jonny Grant  <jg@jguk.org>
 236
 237         * doc/xml/manual/extensions.xml: Remove demangle exception
 238         description and include.
 239         * doc/html/manual/ext_demangling.html: Regenerate.
 240
 241 2023-06-10  Hans-Peter Nilsson  <hp@axis.com>
 242
 243         * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc (main)
 244         [! SIMULATOR_TEST]: Also exclude running test05.
 245         * testsuite/27_io/basic_istream/ignore/char/94749.cc: Ditto.
 246
 247 2023-06-09  Ken Matsui  <kmatsui@cs.washington.edu>
 248
 249         * include/std/type_traits: Use using instead of typedef
 250
 251 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 252
 253         PR libstdc++/110077
 254         * src/c++17/floating_from_chars.cc (from_chars) <_Float128>:
 255         Only define if _Float128 and long double have different
 256         representations.
 257
 258 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 259
 260         PR libstdc++/100285
 261         * include/experimental/internet [IPPROTO_TCP || IPPROTO_UDP]
 262         (basic_endpoint, basic_resolver_entry, resolver_base)
 263         (basic_resolver_results, basic_resolver): Only define if the tcp
 264         or udp protocols will be defined.
 265
 266 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 267
 268         * acinclude.m4 (libtool_VERSION): Update to 6.0.33.
 269         * configure: Regenerate.
 270         * doc/xml/manual/abi.xml: Add libstdc++.so.6.0.33.
 271         * doc/html/manual/abi.html: Regenerate.
 272
 273 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 274
 275         PR libstdc++/110149
 276         * include/std/format (formatter<const void*, charT>::parse):
 277         Only alow 0 and P for C++26 and non-strict modes.
 278         (formatter<const void*, charT>::format): Use toupper for P
 279         type, and insert zero-fill characters for 0 option.
 280         * testsuite/std/format/functions/format.cc: Check pointer
 281         formatting. Only check P2510R3 extensions conditionally.
 282         * testsuite/std/format/parse_ctx.cc: Only check P2510R3
 283         extensions conditionally.
 284
 285 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 286
 287         PR libstdc++/110167
 288         * include/std/array (to_array): Initialize arrays of trivial
 289         types using memcpy. For non-trivial types, use lambda
 290         expressions instead of a separate helper function.
 291         (__to_array): Remove.
 292         * testsuite/23_containers/array/creation/110167.cc: New test.
 293
 294 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 295
 296         * testsuite/23_containers/deque/modifiers/emplace/52799.cc:
 297         Removed.
 298         * testsuite/23_containers/deque/modifiers/emplace/const_iterator.cc:
 299         Removed.
 300         * testsuite/23_containers/list/modifiers/emplace/52799.cc:
 301         Removed.
 302         * testsuite/23_containers/list/modifiers/emplace/const_iterator.cc:
 303         Removed.
 304         * testsuite/23_containers/vector/modifiers/emplace/52799.cc:
 305         Removed.
 306         * testsuite/23_containers/vector/modifiers/emplace/const_iterator.cc:
 307         Removed.
 308         * testsuite/23_containers/deque/modifiers/emplace/1.cc: New
 309         test.
 310         * testsuite/23_containers/list/modifiers/emplace/1.cc: New
 311         test.
 312         * testsuite/23_containers/vector/modifiers/emplace/1.cc: New
 313         test.
 314
 315 2023-06-07  Jakub Jelinek  <jakub@redhat.com>
 316
 317         PR libstdc++/110145
 318         * testsuite/20_util/to_chars/double.cc: Include <cfloat>.
 319         (double_to_chars_test_cases,
 320         double_scientific_precision_to_chars_test_cases_2,
 321         double_fixed_precision_to_chars_test_cases_2): #if out 1e126, 4.91e-6
 322         and 5.547e-6 tests if FLT_EVAL_METHOD is negative or larger than 1.
 323         Add unconditional tests with corresponding double constants
 324         0x1.7a2ecc414a03fp+418, 0x1.4981285e98e79p-18 and
 325         0x1.7440bbff418b9p-18.
 326
 327 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 328
 329         * testsuite/util/testsuite_abi.cc (check_version): Re-add
 330         CXXABI_1.3.14.
 331
 332 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 333
 334         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
 335         Require effective target exceptions_enabled instead of using
 336         dg-skip-if.
 337         * testsuite/23_containers/vector/capacity/constexpr.cc: Expect
 338         shrink_to_fit() to be a no-op without exceptions enabled.
 339         * testsuite/23_containers/vector/capacity/shrink_to_fit.cc:
 340         Likewise.
 341         * testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
 342         Require effective target exceptions_enabled.
 343         * testsuite/ext/malloc_allocator/check_allocate_max_size.cc:
 344         Likewise.
 345         * testsuite/ext/mt_allocator/check_allocate_max_size.cc:
 346         Likewise.
 347         * testsuite/ext/new_allocator/check_allocate_max_size.cc:
 348         Likewise.
 349         * testsuite/ext/pool_allocator/check_allocate_max_size.cc:
 350         Likewise.
 351         * testsuite/ext/throw_allocator/check_allocate_max_size.cc:
 352         Likewise.
 353
 354 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 355
 356         * testsuite/20_util/duration/cons/2.cc: Use values that aren't
 357         affected by rounding.
 358         * testsuite/20_util/from_chars/5.cc: Cast arithmetic result to
 359         double before comparing for equality.
 360         * testsuite/20_util/from_chars/6.cc: Likewise.
 361         * testsuite/20_util/variant/86874.cc: Use values that aren't
 362         affected by rounding.
 363         * testsuite/25_algorithms/lower_bound/partitioned.cc: Compare to
 364         original value instead of to floating-point-literal.
 365         * testsuite/26_numerics/random/discrete_distribution/cons/range.cc:
 366         Cast arithmetic result to double before comparing for equality.
 367         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/range.cc:
 368         Likewise.
 369         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/range.cc:
 370         Likewise.
 371         * testsuite/26_numerics/valarray/transcend.cc (eq): Check that
 372         the absolute difference is less than 0.01 instead of comparing
 373         to two decimal places.
 374         * testsuite/27_io/basic_istream/extractors_arithmetic/char/01.cc:
 375         Cast arithmetic result to double before comparing for equality.
 376         * testsuite/27_io/basic_istream/extractors_arithmetic/char/09.cc:
 377         Likewise.
 378         * testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc:
 379         Likewise.
 380         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc:
 381         Likewise.
 382         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc:
 383         Likewise.
 384         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/10.cc:
 385         Likewise.
 386         * testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
 387
 388 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 389
 390         Revert:
 391         2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 392
 393         * configure.ac: Use AS_IF.
 394         * configure: Regenerate.
 395
 396 2023-06-07  Thomas Schwinge  <thomas@codesourcery.com>
 397
 398         * testsuite/lib/prune.exp (libstdc++-dg-prune): Support
 399         'UNSUPPORTED: [...]: exception handling disabled'.
 400
 401 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 402
 403         * testsuite/util/testsuite_abi.cc (check_version): Add
 404         CXXABI_1.3.15 symver and make it the latestp. Remove
 405         GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
 406
 407 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 408             Jakub Jelinek  <jakub@redhat.com>
 409
 410         PR libstdc++/104772
 411         * include/std/limits: (numeric_limits<__float128>): Define
 412         for __STRICT_ANSI__ as well.
 413         * testsuite/18_support/numeric_limits/128bit.cc: Remove
 414         check for __STRICT_ANSI__.
 415
 416 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 417
 418         * configure.ac: Use AS_IF.
 419         * configure: Regenerate.
 420
 421 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 422
 423         PR libstdc++/109822
 424         * include/experimental/bits/simd_builtin.h (_S_store): Rewrite
 425         to avoid casts to other vector types. Implement store as
 426         succession of power-of-2 sized memcpy to avoid PR90424.
 427
 428 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 429
 430         PR libstdc++/110054
 431         * include/experimental/bits/simd_builtin.h (_S_masked_store):
 432         Call into deduced ABI's SimdImpl after conversion.
 433         * include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
 434         Don't use _mm_maskmoveu_si128. Use the generic fall-back
 435         implementation. Also fix masked stores without SSE2, which
 436         were not doing anything before.
 437
 438 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 439
 440         * include/experimental/bits/simd.h (__bit_cast): Use
 441         __gnu__::__vector_size__ instead of gnu::vector_size.
 442
 443 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 444
 445         PR libstdc++/110139
 446         * include/std/array (__array_traits<T, 0>::operator T*()): Make
 447         conversion operator explicit.
 448         (array::front): Use size_type as subscript operand.
 449         (array::data): Use static_cast to make conversion explicit.
 450         * testsuite/23_containers/array/element_access/110139.cc: New
 451         test.
 452
 453 2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
 454
 455         * include/bits/locale_classes.tcc: Remove check for
 456         codecvt<char8_t, char, mbstate_t> facet.
 457
 458 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 459
 460         * src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
 461         close-on-exec flag on file descriptors.
 462
 463 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 464
 465         PR libstdc++/108178
 466         * src/filesystem/ops-common.h (do_copy_file): Check for empty
 467         files by trying to read a character.
 468         * testsuite/27_io/filesystem/operations/copy_file_108178.cc:
 469         New test.
 470
 471 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
 472
 473         * acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
 474         * config.h.in: Regenerate.
 475         * configure: Regenerate.
 476         * src/filesystem/ops-common.h (copy_file_copy_file_range):
 477         Define new function.
 478         (do_copy_file): Use it.
 479
 480 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
 481
 482         * acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
 483         * config.h.in: Regenerate.
 484         * configure: Regenerate.
 485         * src/filesystem/ops-common.h (copy_file_sendfile): Define new
 486         function for sendfile logic. Loop to support large files. Skip
 487         zero-length files.
 488         (do_copy_file): Use it.
 489
 490 2023-06-04  Jason Merrill  <jason@redhat.com>
 491
 492         PR c++/97720
 493         * libsupc++/eh_call.cc (__cxa_call_terminate): Take void*.
 494         * config/abi/pre/gnu.ver: Add it.
 495
 496 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
 497
 498         * include/parallel/algobase.h: Include <parallel/search.h>.
 499
 500 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 501
 502         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
 503         Add const to equality operator.
 504
 505 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 506
 507         * include/std/expected (expected::and_then, expected::or_else)
 508         (expected::transform_error): Use _M_val and _M_unex instead of
 509         calling value() and error(), as per LWG 3938.
 510         (expected::transform): Likewise. Remove incorrect std::move
 511         calls from lvalue overloads.
 512         (expected<void, E>::and_then, expected<void, E>::or_else)
 513         (expected<void, E>::transform): Use _M_unex instead of calling
 514         error().
 515         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
 516         and transform, and for std::expected<void, E>.
 517         * testsuite/20_util/expected/lwg3938.cc: New test.
 518
 519 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 520
 521         PR libstdc++/110060
 522         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
 523         Remove.
 524         (vector::size, vector::capacity): Remove calls to _M_invariant.
 525         * include/bits/vector.tcc (vector::_M_fill_assign): Add
 526         optimization hint to reallocating path.
 527         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
 528         Likewise.
 529         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
 530         to...
 531         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
 532         ...here. Check assign(FwdIter, FwdIter) too.
 533         * testsuite/23_containers/vector/types/1.cc: Revert addition
 534         of -Wno-stringop-overread option.
 535
 536 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 537
 538         * doc/xml/manual/evolution.xml: Document removal of implicit
 539         allocator rebinding extensions in strict mode and for C++20.
 540         * doc/html/*: Regenerate.
 541
 542 2023-06-01  Jason Merrill  <jason@redhat.com>
 543
 544         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
 545         handlers in the cleanup phase.
 546
 547 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
 548
 549         PR libstdc++/110050
 550         * include/experimental/bits/simd.h (__vectorized_sizeof): With
 551         __have_neon_a32 only single-precision float works (in addition
 552         to integers).
 553
 554 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
 555
 556         * include/bits/stl_algo.h
 557         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
 558         * include/bits/stl_algobase.h: ...here.
 559         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
 560         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
 561         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
 562         Move...
 563         * include/parallel/algobase.h: ...here.
 564         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
 565         includes. Include <bits/stl_algobase.h>.
 566
 567 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 568
 569         PR libstdc++/109818
 570         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
 571         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
 572         * config.h.in: Regenerate.
 573         * configure: Regenerate.
 574         * include/c_global/cmath (float_t, double_t): Guard using new
 575         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
 576
 577 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 578
 579         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
 580         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
 581         for C99 rounding functions to here.
 582         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
 583         functions from here.
 584         * config.h.in: Regenerate.
 585         * configure: Regenerate.
 586         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
 587         of _GLIBCXX_USE_C99_MATH_TR1.
 588         * include/bits/random.tcc: Likewise.
 589         * include/c_compatibility/math.h: Likewise.
 590         * include/c_global/cmath: Likewise.
 591         * include/ext/random: Likewise.
 592         * include/ext/random.tcc: Likewise.
 593         * include/std/complex: Likewise.
 594         * testsuite/20_util/from_chars/4.cc: Likewise.
 595         * testsuite/20_util/from_chars/8.cc: Likewise.
 596         * testsuite/26_numerics/complex/proj.cc: Likewise.
 597         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
 598         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
 599         Likewise.
 600         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 601         Likewise.
 602         * testsuite/util/testsuite_random.h: Likewise.
 603
 604 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 605
 606         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
 607         function.
 608         (vector::size(), vector::capacity()): Call _M_invariant().
 609         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
 610         * testsuite/23_containers/vector/types/1.cc: Add suppression for
 611         false positive warning (PR110060).
 612
 613 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 614
 615         PR libstdc++/109921
 616         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
 617         defined before trying to use _Float128.
 618
 619 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 620
 621         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
 622         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
 623         * configure: Regenerate.
 624
 625 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 626
 627         * include/bits/unique_lock.h: Include <bits/error_constants.h>
 628         here for std::errc constants.
 629         * include/std/mutex: Do not include <bits/error_constants.h> and
 630         <exception> here.
 631
 632 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 633
 634         * configure.ac: Replace use of -o operator for test.
 635         * configure: Regenerate.
 636
 637 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 638
 639         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
 640         noexcept to all constructors except the default constructor.
 641         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
 642         (scoped_allocator_adaptor::outer_allocator): Likewise.
 643         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
 644
 645 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 646
 647         PR libstdc++/104772
 648         * include/std/limits (numeric_limits<__float128>): Define.
 649         * testsuite/18_support/numeric_limits/128bit.cc: New test.
 650
 651 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 652
 653         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
 654         msp430 to all 16-bit targets.
 655         * configure: Regenerate.
 656
 657 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 658
 659         PR libstdc++/109921
 660         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
 661         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
 662         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
 663         binary64.
 664         (from_chars(const char*, const char*, double&, chars_format)):
 665         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
 666         (from_chars(const char*, const char*, _Float128&, chars_format))
 667         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
 668         defined, otherwise parse a long double and convert to _Float128.
 669
 670 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 671
 672         PR libstdc++/109922
 673         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
 674         Add deprecated attribute to non-standard overload.
 675         * doc/xml/manual/evolution.xml: Document deprecation.
 676         * doc/html/*: Regenerate.
 677         * testsuite/27_io/manipulators/standard/char/1.cc: Add
 678         dg-warning for expected deprecated warning.
 679         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
 680         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
 681         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
 682
 683 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
 684
 685         * testsuite/20_util/from_chars/4.cc: Skip long double test06
 686         on x86_64-vxworks.
 687         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
 688         x86_64-vxworks.
 689
 690 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 691
 692         PR libstdc++/109822
 693         * include/experimental/bits/simd.h (to_native): Use int NTTP
 694         as specified in PTS2.
 695         (to_compatible): Likewise. Add missing tag to call mask
 696         generator ctor.
 697         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
 698         test.
 699
 700 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 701
 702         * testsuite/experimental/simd/tests/integer_operators.cc:
 703         Compute expected value differently to avoid getting turned into
 704         a vector shift.
 705
 706 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 707
 708         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
 709         double <-> (u)long conversion tests conditional on sizeof(long
 710         double) and sizeof(long).
 711
 712 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
 713
 714         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
 715         Negative __y is UB, so prefer signed compare.
 716
 717 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
 718
 719         * testsuite/util/testsuite_allocator.h (PointerBase): Add
 720         relational operators.
 721
 722 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
 723
 724         * testsuite/20_util/to_chars/long_double.cc: Expect execution
 725         fail on x86-vxworks.
 726
 727 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 728
 729         PR libstdc++/109949
 730         * include/experimental/bits/simd.h (__intrinsic_type): If
 731         __ALTIVEC__ is defined, map gnu::vector_size types to their
 732         corresponding __vector T types without losing unsignedness of
 733         integer types. Also prefer long long over long.
 734         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
 735         object to the expected unsigned vector type.
 736
 737 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 738
 739         PR libstdc++/109261
 740         * include/experimental/bits/simd.h (__intrinsic_type):
 741         Specialize __intrinsic_type<double, 8> and
 742         __intrinsic_type<double, 16> in any case, but provide the member
 743         type only with __aarch64__.
 744
 745 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 746
 747         PR libstdc++/109261
 748         * include/experimental/bits/simd_neon.h (_S_reduce): Add
 749         constexpr and make NEON implementation conditional on
 750         not __builtin_is_constant_evaluated.
 751
 752 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
 753
 754         PR libstdc++/109261
 755         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
 756         Avoid vector builtin subscripting in constant expressions.
 757         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
 758         (const_where_expression, where_expression, where)
 759         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
 760         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
 761         internal APIs).
 762         * include/experimental/bits/simd_builtin.h (__vector_permute)
 763         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
 764         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
 765         (_MaskImplBuiltin::_S_store): Add constexpr.
 766         (_CommonImplBuiltin::_S_store_bool_array)
 767         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
 768         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
 769         constant_evaluated case.
 770         * include/experimental/bits/simd_fixed_size.h
 771         (_S_masked_load): Reword comment.
 772         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
 773         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
 774         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
 775         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
 776         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
 777         constexpr.
 778         (_SimdTuple::operator[], _M_set): Add constexpr and add
 779         constant_evaluated case.
 780         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
 781         * include/experimental/bits/simd_scalar.h: Add constexpr.
 782         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
 783         constexpr and add constant_evaluated case.
 784         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
 785         (_S_less_equal): Value-initialize to satisfy constexpr
 786         evaluation.
 787         (_MaskImplX86::_S_load): Add constant_evaluated case.
 788         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
 789         case. Value-initialize local variables.
 790         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
 791         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
 792         case.
 793         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
 794         test.
 795
 796 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
 797
 798         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
 799         __infn into #ifdef'ed block.
 800         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
 801         constants only when used.
 802         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
 803         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
 804         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
 805         Likewise.
 806         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
 807         Move totest and expect1 into #ifdef'ed block.
 808
 809 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
 810
 811         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
 812         * doc/html/manual/strings.html: Regenerate.
 813
 814 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 815
 816         PR libstdc++/109883
 817         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
 818
 819 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 820
 821         PR libstdc++/109883
 822         * include/c_global/cmath (atan2, fmod, pow): Move
 823         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
 824         __gnu_cxx::__bfloat16_t overloads.
 825         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
 826         Likewise.
 827         (fma): Move __gnu_cxx::__promote_3 using template after
 828         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
 829
 830 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 831
 832         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
 833         checks for float_round_style and float_denorm_style.
 834
 835 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 836
 837         * include/bits/c++config: Add system_header pragma.
 838
 839 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 840
 841         * include/std/expected (expected::and_then, expected::or_else)
 842         (expected::transform, expected::transform_error): Fix exception
 843         specifications as per LWG 3877.
 844         (expected<void, E>::and_then, expected<void, E>::transform):
 845         Likewise.
 846         * testsuite/20_util/expected/lwg3877.cc: New test.
 847
 848 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
 849
 850         * include/std/type_traits: Use __bool_constant instead of
 851         integral_constant.
 852
 853 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 854
 855         * configure: Regenerate.
 856
 857 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 858
 859         PR libstdc++/109741
 860         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
 861         * config.h.in: Regenerate.
 862         * configure: Regenerate.
 863         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
 864         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
 865         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
 866         instead of hardcoded 64.
 867
 868 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 869
 870         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
 871         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
 872         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
 873         * config.h.in: Regenerate.
 874         * configure: Regenerate.
 875         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
 876         instead of _GLIBCXX_USE_C99_FENV_TR1.
 877         * include/c_global/cfenv: Likewise.
 878         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
 879         of _GLIBCXX_USE_C99_CTYPE_TR1.
 880
 881 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 882
 883         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
 884         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
 885         <inttypes.h> features in C++11 mode and define
 886         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
 887         * config.h.in: Regenerate.
 888         * configure: Regenerate.
 889         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
 890         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
 891         of _GLIBCXX_USE_C99_STDINT_TR1.
 892         * include/c_compatibility/inttypes.h: Check
 893         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
 894         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
 895         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
 896         * include/c_compatibility/stdatomic.h: Check
 897         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
 898         * include/c_compatibility/stdint.h: Likewise.
 899         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
 900         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
 901         _GLIBCXX_USE_C99_INTTYPES_TR1 and
 902         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
 903         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
 904         instead of _GLIBCXX_USE_C99_STDINT_TR1.
 905         * include/std/atomic: Likewise.
 906         * src/c++11/cow-stdexcept.cc: Likewise.
 907         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
 908         Likewise.
 909         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 910         Likewise.
 911
 912 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 913
 914         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
 915         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
 916         * config.h.in: Regenerate.
 917         * configure: Regenerate.
 918         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
 919         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
 920         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
 921
 922 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 923
 924         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
 925         assertion to ensure expected exception is throw.
 926
 927 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 928
 929         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
 930         printer for chrono::zoned_time for cx11 ABI and tzdb effective
 931         target.
 932
 933 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 934
 935         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
 936         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
 937         * configure: Regenerate.
 938
 939 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 940
 941         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
 942         to check for nan, nanf, and nanl.
 943         * configure: Regenerate.
 944
 945 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 946
 947         * include/bits/char_traits.h (char_traits<char16_t>): Do not
 948         depend on _GLIBCXX_USE_C99_STDINT_TR1.
 949         (char_traits<char32_t>): Likewise.
 950         * include/experimental/source_location: Likewise.
 951
 952 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 953
 954         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
 955         (atomic_int_least16_t, atomic_uint_least16_t)
 956         (atomic_int_least32_t, atomic_uint_least32_t)
 957         (atomic_int_least64_t, atomic_uint_least64_t)
 958         (atomic_int_fast16_t, atomic_uint_fast16_t)
 959         (atomic_int_fast32_t, atomic_uint_fast32_t)
 960         (atomic_int_fast64_t, atomic_uint_fast64_t)
 961         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
 962         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
 963
 964 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 965
 966         * include/bits/algorithmfwd.h (shuffle): Do not depend on
 967         _GLIBCXX_USE_C99_STDINT_TR1.
 968         * include/bits/ranges_algo.h (shuffle): Likewise.
 969         * include/bits/stl_algo.h (shuffle): Likewise.
 970         * include/ext/random: Likewise.
 971         * include/ext/throw_allocator.h (random_condition): Likewise.
 972         * include/std/random: Likewise.
 973         * src/c++11/cow-string-inst.cc: Likewise.
 974         * src/c++11/random.cc: Likewise.
 975
 976 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 977
 978         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
 979         _GLIBCXX_USE_C99_STDINT_TR1.
 980
 981 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 982
 983         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
 984         on _GLIBCXX_USE_C99_STDINT_TR1.
 985
 986 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 987
 988         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
 989         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
 990         * testsuite/experimental/string_view/typedefs.cc: Likewise.
 991
 992 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 993
 994         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
 995         (auto_locale, auto_ferounding): New class types.
 996         (from_chars_impl): Use auto_locale and auto_ferounding.
 997
 998 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 999
1000         PR libstdc++/109772
1001         * include/std/chrono (hh_mm_ss::__fits): Remove variable
1002         template.
1003         (hh_mm_ss::__subseconds): Remove __fits from constraints.
1004         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
1005         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
1006         hh_mm_ss<duration<int, std::pico>>.
1007
1008 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
1009
1010         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
1011         * include/bits/basic_ios.h: Add static assertion checking
1012         traits_type::value_type.
1013         * include/bits/basic_string.h: Likewise. Do not rebind
1014         allocator, and add static assertion checking its value_type.
1015         (basic_string::_Alloc_traits_impl): Remove class template.
1016         (basic_string::_S_allocate): New static member function.
1017         (basic_string::assign): Use _S_allocate.
1018         * include/bits/basic_string.tcc (basic_string::_M_create)
1019         (basic_string::reserve, basic_string::_M_replace): Likewise.
1020         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
1021         Disable for C++20 and later.
1022         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
1023         Likweise.
1024
1025 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
1026
1027         PR libstdc++/109758
1028         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
1029         and negative zero correctly.
1030         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
1031
1032 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
1033
1034         * include/bits/hashtable_policy.h
1035         (_NodeBuilder<>::_S_build): Use __node_ptr.
1036         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
1037         (_AllocNode<>): Likewise.
1038         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
1039         to call std::is_permutation in the non-unique key implementation.
1040         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
1041         _M_begin() once.
1042         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
1043         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
1044         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
1045         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
1046         const_iterator.
1047         (_Hashtable<>::find): Likewise.
1048         (_Hashtable<>::_M_emplace): Likewise.
1049         (_Hashtable<>::_M_insert_unique): Likewise.
1050
1051 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
1052
1053         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
1054         Print floating-point durations correctly.
1055         (StdChronoTimePointPrinter): Support printing only the value,
1056         not the type name. Uncomment handling for known clocks.
1057         (StdChronoZonedTimePrinter): Remove type names from output.
1058         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
1059         (StdChronoTimeZonePrinter): Add equals sign to output.
1060         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
1061
1062 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
1063
1064         * testsuite/20_util/from_chars/4.cc: Skip long double test06
1065         on aarch64-vxworks.
1066         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
1067         aarch64-vxworks.
1068
1069 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
1070
1071         * doc/xml/manual/abi.xml (abi.versioning.history): Document
1072         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
1073         * doc/html/manual/abi.html: Regenerate.
1074
1075 2023-05-04  Florian Weimer  <fweimer@redhat.com>
1076
1077         * doc/xml/manual/abi.xml (abi.versioning.history): Add
1078         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
1079         libgcc_s.
1080
1081 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
1082
1083         * src/c++17/floating_from_chars.cc
1084         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
1085         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
1086         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
1087         _ZSt8to_charsPcS_u9__ieee128.
1088         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
1089         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
1090         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
1091         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
1092         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
1093
1094 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
1095
1096         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
1097         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
1098         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
1099         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
1100         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
1101         versions.
1102         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
1103         file.
1104
1105 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
1106             Jonathan Wakely  <jwakely@redhat.com>
1107
1108         PR libstdc++/109703
1109         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
1110         Initialize _M_string_length.
1111
1112 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
1113
1114         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1115         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
1116         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
1117         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1118         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
1119         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1120         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
1121         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1122
1123 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
1124
1125         PR libstdc++/109694
1126         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
1127         -Wattribute-alias.
1128
1129 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1130
1131         * include/bits/random.h (gamma_distribution): Add to the right
1132         doxygen group.
1133         (discrete_distribution, piecewise_constant_distribution)
1134         (piecewise_linear_distribution): Create a new doxygen group and
1135         fix the incomplete doxygen comments.
1136         * include/bits/uniform_int_dist.h (uniform_int_distribution):
1137         Add to doxygen group.
1138
1139 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1140
1141         * include/bits/uses_allocator.h: Add missing @file comment.
1142         * include/bits/regex.tcc: Remove stray doxygen comments.
1143         * include/experimental/memory_resource: Likewise.
1144         * include/std/bit: Tweak doxygen @cond comments.
1145         * include/std/expected: Likewise.
1146         * include/std/numbers: Likewise.
1147
1148 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1149
1150         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
1151         from header paths.
1152
1153 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1154
1155         * include/bits/move.h: Simplify opening/closing namespace std.
1156
1157 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
1158
1159         PR libstdc++/108969
1160         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
1161         _ZSt21ios_base_library_initv.
1162         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
1163         symver and make it the latestp.
1164         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
1165         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
1166         * include/std/iostream: If init_priority attribute is supported
1167         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
1168         symbol into the object.
1169         * configure: Regenerated.
1170
1171 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1172
1173         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
1174         * include/std/format: Likewise.
1175
1176 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1177
1178         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
1179         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
1180
1181 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1182
1183         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
1184         HTML docs.
1185         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
1186         from doxygen docs.
1187         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
1188         Likewise.
1189         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
1190         Likewise.
1191         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
1192         Likewise.
1193         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
1194         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
1195         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
1196         (_DEFINE_BINARY_OPERATOR): Likewise.
1197
1198 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1199
1200         * include/bits/memory_resource.h: Improve doxygen comments.
1201         * include/std/memory_resource: Likewise.
1202
1203 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1204
1205         PR libstdc++/40380
1206         * include/bits/basic_string.h: Improve doxygen comments.
1207         * include/bits/cow_string.h: Likewise.
1208         * include/bits/forward_list.h: Likewise.
1209         * include/bits/fs_dir.h: Likewise.
1210         * include/bits/fs_path.h: Likewise.
1211         * include/bits/quoted_string.h: Likewise.
1212         * include/bits/stl_bvector.h: Likewise.
1213         * include/bits/stl_map.h: Likewise.
1214         * include/bits/stl_multimap.h: Likewise.
1215         * include/bits/stl_multiset.h: Likewise.
1216         * include/bits/stl_set.h: Likewise.
1217         * include/bits/stl_vector.h: Likewise.
1218         * include/bits/unordered_map.h: Likewise.
1219         * include/bits/unordered_set.h: Likewise.
1220         * include/std/filesystem: Likewise.
1221         * include/std/iomanip: Likewise.
1222
1223 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1224
1225         PR libstdc++/105081
1226         * src/c++11/random.cc (__throw_syserr): New function.
1227         (random_device::_M_init, random_device::_M_init_pretr1): Use new
1228         function for bad tokens.
1229         (random_device::_M_getval): Use new function for read errors.
1230         * testsuite/util/testsuite_random.h (random_device_available):
1231         Change catch handler to use std::system_error.
1232
1233 2023-04-24  Patrick Palka  <ppalka@redhat.com>
1234
1235         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
1236         Fix propagation of sign bit.
1237         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
1238         non-standard 'signed typedef-name'.  Add some compile-time tests
1239         for right-shifting a negative __max_diff_type value by more than
1240         one.
1241
1242 2023-04-19  Patrick Palka  <ppalka@redhat.com>
1243             Jonathan Wakely  <jwakely@redhat.com>
1244
1245         PR c++/100157
1246         * include/bits/utility.h (_Nth_type): Conditionally define in
1247         terms of __type_pack_element if available.
1248         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
1249         additional errors from the new built-in.
1250
1251 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
1252
1253         Revert:
1254         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1255
1256         PR libstdc++/108969
1257         * src/Makefile.am: Move globals_io.cc to here.
1258         * src/Makefile.in: Regenerate.
1259         * src/c++98/Makefile.am: Remove globals_io.cc from here.
1260         * src/c++98/Makefile.in: Regenerate.
1261         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
1262         symbol name and then export with GLIBCXX_3.4.31 symver.
1263         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
1264         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
1265         Regenerate.
1266         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
1267         Regenerate.
1268         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
1269         Regenerate.
1270         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
1271         Regenerate.
1272         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
1273         Regenerate.
1274         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
1275         Regenerate.
1276         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
1277         Regenerate.
1278         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
1279         Regenerate.
1280         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
1281
1282 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
1283
1284         Revert:
1285         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1286
1287         PR libstdc++/108969
1288         * config/abi/pre/gnu.ver: Fix preprocessor condition.
1289
1290 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1291
1292         * doc/xml/manual/extensions.xml: Fix example to declare and
1293         qualify std::free, and use NULL instead of 0.
1294         * doc/html/manual/ext_demangling.html: Regenerate.
1295         * libsupc++/cxxabi.h: Adjust doxygen comments.
1296
1297 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1298
1299         PR libstdc++/108969
1300         * config/abi/pre/gnu.ver: Fix preprocessor condition.
1301
1302 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1303
1304         PR libstdc++/108969
1305         * src/Makefile.am: Move globals_io.cc to here.
1306         * src/Makefile.in: Regenerate.
1307         * src/c++98/Makefile.am: Remove globals_io.cc from here.
1308         * src/c++98/Makefile.in: Regenerate.
1309         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
1310         symbol name and then export with GLIBCXX_3.4.31 symver.
1311         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
1312         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
1313         Regenerate.
1314         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
1315         Regenerate.
1316         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
1317         Regenerate.
1318         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
1319         Regenerate.
1320         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
1321         Regenerate.
1322         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
1323         Regenerate.
1324         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
1325         Regenerate.
1326         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
1327         Regenerate.
1328         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
1329
1330 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1331
1332         PR libstdc++/108827
1333         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
1334         for C++23.
1335         * include/std/ranges (range_adaptor_closure): Define for C++23.
1336         * include/std/version (__cpp_lib_ranges): Bump value for
1337         C++23.
1338         * testsuite/std/ranges/version_c++23.cc: Bump expected value
1339         of __cpp_lib_ranges.
1340         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
1341
1342 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1343
1344         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
1345         Define for C++23.
1346         (__cpp_lib_ranges_iota): Likewise.
1347         (__cpp_lib_ranges_find_last): Likewise.
1348         (__cpp_lib_fold): Rename to ...
1349         (__cpp_lib_ranges_fold): ... this.
1350         * include/std/version: As above.
1351         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
1352         renaming __cpp_lib_fold.
1353         * testsuite/std/ranges/version_c++23.cc: Verify values
1354         of the above feature-test macros.
1355
1356 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1357
1358         PR libstdc++/109525
1359         * include/std/ranges (views::_AsConst::operator()): Add
1360         missing const to constant_range test.
1361         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
1362         Improve formatting.  Adjust expected type of v2.
1363         (test03): New test.
1364
1365 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1366
1367         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
1368         (const_sentinel_t): Likewise.
1369         (range_const_reference_t): Likewise.
1370         (constant_range): Likewise.
1371         (__cust_access::__possibly_const_range): Likewise, replacing ...
1372         (__cust_access::__as_const): ... this.
1373         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
1374         (__cust_access::_CEnd::operator()): Likewise.
1375         (__cust_access::_CRBegin::operator()): Likewise.
1376         (__cust_access::_CREnd::operator()): Likewise.
1377         (__cust_access::_CData::operator()): Likewise.
1378         * include/bits/ranges_util.h (ranges::__detail::__different_from):
1379         Make it an alias of std::__detail::__different_from.
1380         (view_interface::cbegin): Define for C++23.
1381         (view_interface::cend): Likewise.
1382         * include/bits/stl_iterator.h (__detail::__different_from): Define.
1383         (iter_const_reference_t): Define for C++23.
1384         (__detail::__constant_iterator): Likewise.
1385         (__detail::__is_const_iterator): Likewise.
1386         (__detail::__not_a_const_iterator): Likewise.
1387         (__detail::__iter_const_rvalue_reference_t): Likewise.
1388         (__detail::__basic_const_iter_cat):: Likewise.
1389         (const_iterator): Likewise.
1390         (__detail::__const_sentinel): Likewise.
1391         (const_sentinel): Likewise.
1392         (basic_const_iterator): Likewise.
1393         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
1394         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
1395         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
1396         Likewise.
1397         (make_const_iterator): Define for C++23.
1398         (make_const_sentinel): Likewise.
1399         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
1400         (as_const_view): Likewise.
1401         (enable_borrowed_range<as_const_view>): Likewise.
1402         (views::__detail::__is_ref_view): Likewise.
1403         (views::__detail::__can_is_const_view): Likewise.
1404         (views::_AsConst, views::as_const): Likewise.
1405         * include/std/span (span::const_iterator): Likewise.
1406         (span::const_reverse_iterator): Likewise.
1407         (span::cbegin): Likewise.
1408         (span::cend): Likewise.
1409         (span::crbegin): Likewise.
1410         (span::crend): Likewise.
1411         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
1412         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
1413         behave independently of C++20 vs C++23.
1414         * testsuite/std/ranges/version_c++23.cc: Verify value of
1415         __cpp_lib_ranges_as_const macro.
1416         * testsuite/24_iterators/const_iterator/1.cc: New test.
1417         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
1418
1419 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1420
1421         * include/bits/ranges_base.h (__cust_access::__as_const)
1422         (__cust_access::_CBegin, __cust::cbegin)
1423         (__cust_access::_CEnd, __cust::cend)
1424         (__cust_access::_CRBegin, __cust::crbegin)
1425         (__cust_access::_CREnd, __cust::crend)
1426         (__cust_access::_CData, __cust::cdata): Move down definitions to
1427         shortly after the definition of input_range.
1428
1429 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1430
1431         * include/bits/ranges_algo.h: Include <optional> for C++23.
1432         (__cpp_lib_fold): Define for C++23.
1433         (in_value_result): Likewise.
1434         (__detail::__flipped): Likewise.
1435         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
1436         (__detail::__indirectly_binary_left_foldable): Likewise.
1437         (___detail:__indirectly_binary_right_foldable): Likewise.
1438         (fold_left_with_iter_result): Likewise.
1439         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
1440         (__fold_left_fn, fold_left): Likewise.
1441         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
1442         Likewise.
1443         (__fold_left_first_fn, fold_left_first): Likewise.
1444         (__fold_right_fn, fold_right): Likewise.
1445         (__fold_right_last_fn, fold_right_last): Likewise.
1446         * include/std/version (__cpp_lib_fold): Likewise.
1447         * testsuite/25_algorithms/fold_left/1.cc: New test.
1448         * testsuite/25_algorithms/fold_right/1.cc: New test.
1449
1450 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
1451
1452         * include/std/format (formatter): Add comment to deleted default
1453         constructor of primary template.
1454         (_Checking_scanner): Add static_assert.
1455
1456 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1457
1458         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
1459         * doc/html/*: Regenerate.
1460
1461 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1462
1463         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
1464         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
1465         namespace to avoid clashing with libc struct.
1466         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
1467         Likewise.
1468         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
1469         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
1470         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
1471         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
1472         * testsuite/experimental/synchronized_value.cc: Require gthreads
1473         and add missing option for pthreads targets.
1474
1475 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1476
1477         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
1478         for C++23.
1479         (__detail::__range_with_movable_reference): Likewise.
1480         (enumerate_view): Likewise.
1481         (enumerate_view::_Iterator): Likewise.
1482         (enumerate_view::_Sentinel): Likewise.
1483         (views::__detail::__can_enumerate_view): Likewise.
1484         (views::_Enumerate, views::enumerate): Likewise.
1485         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
1486         * testsuite/std/ranges/version_c++23.cc: Verify value of
1487         __cpp_lib_ranges_enumerate.
1488         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
1489
1490 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1491
1492         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
1493         Propagate _M_trailing_empty in the const-converting constructor
1494         as per LWG 3904.
1495         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
1496         assertion.
1497         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
1498
1499 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1500
1501         * src/c++17/floating_from_chars.cc: Include <algorithm>,
1502         <iterator>, <limits> and <cstdint>.
1503
1504 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1505
1506         PR libstdc++/108291
1507         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
1508         parameter types of the lambda wrapper passed to adjacent_find.
1509         (chunk_by_view::_M_find_prev): Likewise.
1510         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
1511         New tests.
1512
1513 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1514
1515         PR libstdc++/109482
1516         * include/experimental/internet (basic_endpoint::basic_endpoint()):
1517         Ensure that the required union members are active. Only define
1518         as constexpr for C++20 and later.
1519         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
1520         Likewise.
1521         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
1522         check constexpr default constructor for C++20 and later.
1523         * testsuite/experimental/net/internet/endpoint/extensible.cc:
1524         Likewise.
1525
1526 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1527
1528         * src/c++20/tzdata.zi: Import new file from 2023c release.
1529
1530 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1531
1532         * include/precompiled/stdc++.h (C++17): Don't double-include
1533         <charconv>, once with wrong conditions.
1534         * testsuite/18_support/96817.cc: Require hosted.
1535         * testsuite/18_support/bad_exception/59392.cc: Ditto.
1536         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
1537         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
1538         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
1539         Ditto.
1540
1541 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1542
1543         * include/bits/c++config: When __STDC_HOSTED__ is zero,
1544         disable _GLIBCXX_DEBUG and, if it was set, enable
1545         _GLIBCXX_ASSERTIONS.
1546         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
1547         Include <bits/c++config.h> when determining whether debug is
1548         set, in order to inherit the logic from above
1549
1550 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1551
1552         * testsuite/17_intro/versionconflict.cc: New test.
1553         * include/std/version: Allow disabling the system_header pragma
1554         via _GLIBCXX_TESTING_SYSHDR.
1555
1556 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1557
1558         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
1559         Synchronize the definition block with...
1560         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
1561         ... this one here.  Also define the 202202L value, rather than
1562         leaving it up to purely unique_ptr.h, so that the value is
1563         synchronized across all headers.
1564         (__gnu_debug::_Safe_iterator_base): Move into new conditional
1565         block.
1566         * include/std/memory (__cpp_lib_atomic_value_initialization):
1567         Define on freestanding under the same conditions as in
1568         atomic_base.h.
1569         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
1570         Also define on freestanding.
1571         (__cpp_lib_to_chars): Ditto.
1572         (__cpp_lib_gcd): Ditto.
1573         (__cpp_lib_gcd_lcm): Ditto.
1574         (__cpp_lib_raw_memory_algorithms): Ditto.
1575         (__cpp_lib_array_constexpr): Ditto.
1576         (__cpp_lib_nonmember_container_access): Ditto.
1577         (__cpp_lib_clamp): Ditto.
1578         (__cpp_lib_constexpr_char_traits): Ditto.
1579         (__cpp_lib_constexpr_string): Ditto.
1580         (__cpp_lib_sample): Ditto.
1581         (__cpp_lib_lcm): Ditto.
1582         (__cpp_lib_constexpr_iterator): Ditto.
1583         (__cpp_lib_constexpr_char_traits): Ditto.
1584         (__cpp_lib_interpolate): Ditto.
1585         (__cpp_lib_constexpr_utility): Ditto.
1586         (__cpp_lib_shift): Ditto.
1587         (__cpp_lib_ranges): Ditto.
1588         (__cpp_lib_move_iterator_concept): Ditto.
1589         (__cpp_lib_constexpr_numeric): Ditto.
1590         (__cpp_lib_constexpr_functional): Ditto.
1591         (__cpp_lib_constexpr_algorithms): Ditto.
1592         (__cpp_lib_constexpr_tuple): Ditto.
1593         (__cpp_lib_constexpr_memory): Ditto.
1594
1595 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
1596
1597         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
1598         timeout factor on hppa*-*-*.
1599
1600 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
1601
1602         * include/bits/regex.h (sub_match::swap): New function.
1603         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
1604
1605 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
1606
1607         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
1608         example program.
1609         * doc/html/manual/ext_demangling.html: Regenerate.
1610
1611 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1612
1613         PR tree-optimization/107087
1614         * include/bits/cow_string.h (basic_string::size()): Add
1615         optimizer hint that _S_empty_rep()._M_length is always zero.
1616         (basic_string::length()): Call size().
1617
1618 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1619
1620         PR libstdc++/109339
1621         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
1622         Add attribute access with access-mode 'none'.
1623         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
1624
1625 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1626
1627         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
1628         Revert change from member function to data member. Fix for
1629         constant evaluation by detecting which union member is active.
1630         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
1631         flag.
1632
1633 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1634
1635         PR libstdc++/109242
1636         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
1637         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
1638
1639 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1640
1641         * include/experimental/internet (ip::make_address): Implement
1642         missing overload.
1643         (ip::address_v4::broadcast()): Avoid undefined shift.
1644         (ip::basic_endpoint): Fix member functions for constexpr.
1645         (ip::basic_endpoint::_M_is_v6): Replace member function with
1646         data member, adjust member functions using it.
1647         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
1648         content.
1649         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
1650         constexpr checks to work in C++14.
1651         * testsuite/experimental/net/internet/address/v4/creation.cc:
1652         Likewise.
1653         * testsuite/experimental/net/internet/endpoint/cons.cc:
1654         Likewise.
1655         * testsuite/experimental/net/internet/network/v4/cons.cc:
1656         Likewise.
1657         * testsuite/experimental/net/internet/network/v4/members.cc:
1658         Likewise.
1659         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
1660
1661 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1662
1663         * include/std/expected (expected::value() &): Use const lvalue
1664         for unex member passed to bad_expected_access constructor, as
1665         per LWG 3843.
1666
1667 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1668
1669         PR libstdc++/109340
1670         * include/std/expected (expected::transform): Use
1671         std::remove_cv_t instead of std::remove_cvref_t.
1672         (expected::transform_error): Likewise.
1673         (expected<cv void, E>::transform): Likewise.
1674         (expected<cv void, E>::transform_error): Likewise.
1675         * include/std/optional (transform): Use std::remove_cv_t.
1676         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
1677
1678 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1679
1680         * include/std/optional (optional): Adjust static assertion to
1681         reject arrays and functions as well as references.
1682         * testsuite/20_util/optional/requirements_neg.cc: New test.
1683
1684 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1685
1686         PR libstdc++/103387
1687         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
1688         std::use_facet instead of cached _M_num_get facet.
1689         (istream::operator>>(short&)): Likewise.
1690         (istream::operator>>(int&)): Likewise.
1691         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
1692         std::use_facet instead of cached _M_num_put facet.
1693
1694 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1695
1696         * include/bits/char_traits.h (char_traits::copy): Return without
1697         using memcpy if n==0.
1698         (char_traits::assign): Likewise for memset.
1699
1700 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1701
1702         PR libstdc++/109299
1703         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
1704         hint for compiler that local strings fit in the local buffer.
1705
1706 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1707
1708         PR libstdc++/109288
1709         * include/std/chrono (__detail::__get_leap_second_info): Update
1710         expiry date of hardcoded leapseconds list.
1711         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
1712         Likewise.
1713         * src/c++20/tzdata.zi: Import new file from 2023a release.
1714         * testsuite/std/time/time_zone/get_info_local.cc: Only check
1715         transitions for Egypt up to 2014.
1716
1717 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1718
1719         * include/experimental/bits/simd.h (is_simd_flag_type): New.
1720         (_IsSimdFlagType): New.
1721         (copy_from, copy_to, load ctors): Constrain _Flags using
1722         _IsSimdFlagType.
1723
1724 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1725
1726         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
1727         _Base::_S_divides if the optimized _S_divides function is hidden
1728         via the preprocessor.
1729
1730 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
1731
1732         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
1733         warning if size_t is not unsigned long.
1734
1735 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1736
1737         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
1738         Add overload, as per LWG 3893.
1739         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
1740         Check assignment from nullptr.
1741
1742 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1743
1744         * include/std/format (formatter<const charT[N], charT>): Do not
1745         define partial speclialization, as per LWG 3833.
1746         * testsuite/std/format/formatter/requirements.cc: Check it.
1747
1748 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1749
1750         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
1751         as per LWG 3792.
1752         * testsuite/20_util/exchange/constexpr.cc: Check for it.
1753
1754 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1755
1756         * include/std/version (__cpp_lib_format): Define.
1757         * testsuite/std/format/functions/format.cc: Check it.
1758
1759 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1760
1761         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
1762         Pass rvalues to the callback, as now allowed by LWG 3645.
1763         Enforce preconditions on the return value.
1764         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
1765         Adjust.
1766
1767 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1768
1769         * include/std/format: Add a comment noting that the resolution
1770         of LWG 3720 has been applied..
1771
1772 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1773
1774         * include/bits/regex.h (match_results): Add allocator-extended
1775         copy and move constructors, as per LWG 2195.
1776         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
1777
1778 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1779
1780         * include/bits/stream_iterator.h (istream_iterator): Add
1781         constexpr to copy constructor, as per LWG 3600.
1782         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
1783         Check copy construction.
1784
1785 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1786
1787         * include/experimental/bits/simd_x86.h
1788         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
1789         with __RECIPROCAL_MATH__.
1790
1791 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1792
1793         * include/experimental/bits/simd_detail.h: Don't define
1794         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
1795         * include/experimental/bits/simd_x86.h (_S_divides): Remove
1796         check for __clang__.
1797
1798 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1799
1800         * include/experimental/bits/simd_detail.h: Don't declare the
1801         simd API as constexpr with Clang.
1802         * include/experimental/bits/simd_x86.h (__movm): New.
1803         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
1804         and ?:.
1805         (_SimdImplX86::_S_masked_unary): Clang does not implement the
1806         same builtins. Implement the function using __movm, ?:, and -
1807         operators on vector_size types instead.
1808
1809 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1810
1811         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
1812         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
1813
1814 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1815
1816         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
1817         formatting.
1818
1819 2023-03-20  Marek Polacek  <polacek@redhat.com>
1820
1821         PR c++/109159
1822         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
1823         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
1824         * testsuite/23_containers/span/explicit.cc: Likewise.
1825
1826 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1827
1828         PR libstdc++/109182
1829         * include/std/expected (expected<void>::expected(in_place_t)):
1830         Remove template-head.
1831
1832 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
1833
1834         PR libstdc++/109165
1835         * testsuite/18_support/coroutines/hash.cc: Use const object
1836         in second call.
1837
1838 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
1839
1840         PR libstdc++/109165
1841         * include/std/coroutine (hash<>::operator()): Add const.
1842         * testsuite/18_support/coroutines/hash.cc: New test.
1843
1844 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1845
1846         PR libstdc++/109111
1847         * include/std/ranges (repeat_view): Remove redundant parentheses
1848         in requires-clause.
1849         (repeat_view::_Iterator): Correct the requires-clause.
1850
1851 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1852
1853         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
1854         Define.
1855         (__cpp_lib_move_iterator_concept): Define for C++20.
1856         (move_iterator::iterator_concept): Strengthen as per P2520R0.
1857         * include/std/version (__cpp_lib_move_iterator_concept): Define
1858         for C++20.
1859         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
1860
1861 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1862
1863         * include/bits/ranges_util.h (view_interface::empty): Add
1864         preferred overloads that use ranges::size when the range is
1865         sized as per LWG 3715.
1866         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
1867
1868 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1869
1870         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
1871         Only define for C++17 and later.
1872
1873 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1874
1875         * src/Makefile.am: Add comment about linker script fragments.
1876         * src/Makefile.in: Regenerate.
1877
1878 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1879
1880         PR libstdc++/62196
1881         * include/bits/mask_array.h (mask_array): Add assertions to
1882         assignment operators.
1883         * include/std/valarray (valarray::operator[](valarray<bool>)):
1884         Add assertions.
1885         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
1886         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
1887         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
1888         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
1889         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
1890         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
1891         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
1892         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
1893         * testsuite/26_numerics/valarray/mask.cc: New test.
1894
1895 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
1896
1897         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1898         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1899
1900 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1901
1902         * doc/Makefile.am: Add comment referring to documentation.
1903         * doc/Makefile.in: Regenerate.
1904
1905 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1906
1907         * doc/html/*: Regenerate.
1908
1909 2023-03-13  Jonny Grant  <jg@jguk.org>
1910
1911         * doc/xml/faq.xml: Update copyright year.
1912
1913 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1914
1915         * include/bits/allocator.h: Fix typo in comment.
1916
1917 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
1918
1919         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
1920         if it isn't mangled as DF16b but u6__bf16.
1921
1922 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
1923
1924         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
1925         to https.
1926         * doc/html/manual/documentation_hacking.html: Regenerate.
1927
1928 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
1929
1930         PR libstdc++/109064
1931         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
1932         Remove self-recursion in __init__. Add missing _supports.
1933         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
1934         and unique().
1935
1936 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1937
1938         * include/std/ranges
1939         (cartesian_product_view::_Iterator::_Iterator): Remove
1940         constraint on default constructor as per LWG 3849.
1941         (cartesian_product_view::_Iterator::_M_prev): Adjust position
1942         of _Nm > 0 test as per LWG 3820.
1943         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
1944         checking only on sized cartesian products.
1945         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
1946
1947 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1948
1949         PR libstdc++/109024
1950         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
1951         LWG 3796.
1952         (repeat_view::_M_pred): Likewise.
1953         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
1954         * testsuite/std/ranges/repeat/1.cc (test05): New test.
1955
1956 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1957
1958         PR libstdc++/108362
1959         * include/std/ranges (__detail::__can_single_view): New concept.
1960         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
1961         end of the function declarator.
1962         (__detail::__can_iota_view): New concept.
1963         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
1964         end of the function declarator.
1965         (__detail::__can_istream_view): New concept.
1966         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
1967         end of the function declarator.
1968         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
1969         * testsuite/std/ranges/istream_view.cc (test08): New test.
1970         * testsuite/std/ranges/single_view.cc (test07): New test.
1971
1972 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1973
1974         PR libstdc++/107572
1975         * include/std/ranges (cartesian_product_view::end): When
1976         building the tuple of iterators, avoid calling ranges::begin on
1977         the first range if __empty_tail is false.
1978         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
1979
1980 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
1981
1982         PR libstdc++/108882
1983         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
1984         patterns.
1985
1986 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
1987
1988         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1989         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
1990         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
1991         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1992         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1993
1994 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
1995
1996         PR libstdc++/108882
1997         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
1998         not match symbols in namespace std::__gnu_cxx11_ieee128.
1999         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
2000         std::__gnu_cxx11_ieee128::money_{get,put}.
2001
2002 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
2003
2004         * libsupc++/eh_personality.cc: Fix spelling in comment.
2005
2006 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
2007
2008         * testsuite/30_threads/async/async.cc (test04): Initialize
2009         steady_start, renamed from steady_begin, next to slow_start.
2010         Increase tolerance for final wait.
2011
2012 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
2013
2014         * testsuite/libstdc++-prettyprinters/80276.cc: Add
2015         std::string to debug info.
2016         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
2017
2018 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
2019
2020         PR libstdc++/104852
2021         PR libstdc++/95989
2022         PR libstdc++/52590
2023         * include/bits/std_thread.h (thread::_M_thread_deps): New
2024         static implicitly-inline member function.
2025         (std::thread template ctor): Pass it to _M_start_thread.
2026         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
2027         parameter, force it live on entry.
2028
2029 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2030
2031         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
2032         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
2033         Likewise.
2034         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
2035         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
2036         Likewise.
2037
2038 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
2039
2040         * include/bits/cow_string.h: Fix typo in comment.
2041
2042 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
2043
2044         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
2045         current time zone cannot be determined.
2046         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
2047         HAVE_TZDB macro and test all members unconditionally.
2048
2049 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
2050
2051         PR libstdc++/108952
2052         * include/bits/uses_allocator_args.h
2053         (uses_allocator_construction_args): Implement LWG 3527.
2054         * testsuite/20_util/pair/astuple/get-2.cc: New test.
2055         * testsuite/20_util/scoped_allocator/108952.cc: New test.
2056         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
2057
2058 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
2059
2060         PR libstdc++/108846
2061         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
2062         Add __assign_one static member function.
2063         (__copy_move<true, false, RA>): Likewise.
2064         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
2065         value.
2066         (__copy_move_backward<IsMove, true, RA>): Likewise.
2067         * testsuite/25_algorithms/copy/108846.cc: New test.
2068         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
2069         * testsuite/25_algorithms/copy_n/108846.cc: New test.
2070         * testsuite/25_algorithms/move/108846.cc: New test.
2071         * testsuite/25_algorithms/move_backward/108846.cc: New test.
2072
2073 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
2074
2075         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
2076         attributes.
2077
2078 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
2079
2080         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
2081         caveat to comment.
2082         * include/bits/basic_string.h (resize_and_overwrite): Add
2083         doxygen comment.
2084
2085 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
2086
2087         * include/experimental/bits/simd.h: Line breaks and indenting
2088         fixed to follow the libstdc++ standard.
2089         * include/experimental/bits/simd_builtin.h: Likewise.
2090         * include/experimental/bits/simd_fixed_size.h: Likewise.
2091         * include/experimental/bits/simd_neon.h: Likewise.
2092         * include/experimental/bits/simd_ppc.h: Likewise.
2093         * include/experimental/bits/simd_scalar.h: Likewise.
2094         * include/experimental/bits/simd_x86.h: Likewise.
2095
2096 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
2097
2098         PR libstdc++/108030
2099         * include/experimental/bits/simd_fixed_size.h
2100         (_SimdImplFixedSize::_S_broadcast): Replace inline with
2101         _GLIBCXX_SIMD_INTRINSIC.
2102         (_SimdImplFixedSize::_S_generate): Likewise.
2103         (_SimdImplFixedSize::_S_load): Likewise.
2104         (_SimdImplFixedSize::_S_masked_load): Likewise.
2105         (_SimdImplFixedSize::_S_store): Likewise.
2106         (_SimdImplFixedSize::_S_masked_store): Likewise.
2107         (_SimdImplFixedSize::_S_min): Likewise.
2108         (_SimdImplFixedSize::_S_max): Likewise.
2109         (_SimdImplFixedSize::_S_complement): Likewise.
2110         (_SimdImplFixedSize::_S_unary_minus): Likewise.
2111         (_SimdImplFixedSize::_S_plus): Likewise.
2112         (_SimdImplFixedSize::_S_minus): Likewise.
2113         (_SimdImplFixedSize::_S_multiplies): Likewise.
2114         (_SimdImplFixedSize::_S_divides): Likewise.
2115         (_SimdImplFixedSize::_S_modulus): Likewise.
2116         (_SimdImplFixedSize::_S_bit_and): Likewise.
2117         (_SimdImplFixedSize::_S_bit_or): Likewise.
2118         (_SimdImplFixedSize::_S_bit_xor): Likewise.
2119         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
2120         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
2121         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
2122         explicit about not always-inline, yet).
2123         (_SimdImplFixedSize::_S_isinf): Likewise.
2124         (_SimdImplFixedSize::_S_isfinite): Likewise.
2125         (_SimdImplFixedSize::_S_isnan): Likewise.
2126         (_SimdImplFixedSize::_S_isnormal): Likewise.
2127         (_SimdImplFixedSize::_S_signbit): Likewise.
2128
2129 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
2130
2131         PR libstdc++/108856
2132         * include/experimental/bits/simd_builtin.h
2133         (_SimdImplBuiltin::_S_masked_unary): More efficient
2134         implementation of masked inc-/decrement for integers and floats
2135         without AVX2.
2136         * include/experimental/bits/simd_x86.h
2137         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
2138         builtins for masked inc-/decrement.
2139
2140 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2141
2142         * include/experimental/executor (executor): Constrain template
2143         constructors.
2144
2145 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2146
2147         * include/experimental/internet (basic_endpoint): Add missing
2148         constexpr to comparison operators.
2149         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
2150
2151 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2152
2153         * include/experimental/internet (network_v4::netmask()): Avoid
2154         undefined shift.
2155         (network_v4::broadcast()): Optimize and fix for targets with
2156         uint_least32_t wider than 32 bits.
2157         (network_v4::to_string(const Allocator&)): Fix for custom
2158         allocators and optimize using to_chars.
2159         (operator==(const network_v4&, const network_v4&)): Add missing
2160         constexpr.
2161         (operator==(const network_v6&, const network_v6&)): Likewise.
2162         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
2163         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
2164
2165 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2166
2167         * include/experimental/internet (address_4(const bytes_type&)):
2168         Use __builtin_bit_cast if available, otherwise convert to
2169         network byte order.
2170         (address_v4::to_bytes()): Likewise, but convert from network
2171         byte order.
2172         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
2173         incorrect tests. Check for constexpr too.
2174         * testsuite/experimental/net/internet/address/v4/creation.cc:
2175         Likewise.
2176         * testsuite/experimental/net/internet/address/v4/members.cc:
2177         Check that bytes_type is a standard-layout type.
2178
2179 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2180
2181         * include/experimental/internet (address_v4::to_string):
2182         Optimize.
2183         * testsuite/experimental/net/internet/address/v4/members.cc:
2184         Check more addresses.
2185
2186 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2187
2188         * include/ext/aligned_buffer.h (__aligned_buffer): Add
2189         diagnostic pragmas.
2190
2191 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2192
2193         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
2194         before dg-do.
2195
2196 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2197
2198         * testsuite/experimental/simd/tests/reductions.cc: Introduce
2199         max_distance as the type-dependent max error.
2200
2201 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2202
2203         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
2204         int. The actual range of these indexes is very small.
2205
2206 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2207
2208         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
2209         (_S_bit_shift_right): Declare constexpr. The implementation was
2210         already expecting constexpr evaluation.
2211
2212 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2213
2214         PR libstdc++/108030
2215         * include/experimental/bits/simd_detail.h
2216         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
2217         __clang__.
2218
2219 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2220
2221         PR libstdc++/108030
2222         * include/experimental/bits/simd.h (__vector_broadcast):
2223         Implement via __vector_broadcast_impl instead of
2224         __call_with_n_evaluations + 2 lambdas.
2225         (__vector_broadcast_impl): New.
2226
2227 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2228
2229         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
2230         Avoid destruction of the mutex pool.
2231
2232 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2233
2234         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
2235         on vxworks.
2236         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
2237         Likewise.
2238
2239 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2240
2241         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
2242         kernel mode.
2243
2244 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
2245
2246         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
2247
2248 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
2249
2250         * include/experimental/bits/simd.h (__extract_part, split):
2251         Use reserved name for template parameter.
2252
2253 2023-02-20  Andreas Schwab  <schwab@suse.de>
2254
2255         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
2256
2257 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
2258
2259         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
2260         * doc/html/faq.html: Regenerate.
2261
2262 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2263
2264         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
2265         between scalars requires the __bit_cast helper function instead
2266         of simd_bit_cast.
2267
2268 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2269
2270         * include/experimental/bits/simd_x86.h
2271         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
2272         (_SimdImplX86::_S_less_equal): Do not call
2273         __builtin_is_constant_evaluated in constexpr-if.
2274
2275 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2276
2277         * testsuite/experimental/simd/tests/bits/verify.h
2278         (verify::verify): Use %zx for size_t in format string.
2279
2280 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2281
2282         * testsuite/experimental/simd/generate_makefile.sh: Generate and
2283         pre-compile pch.h, which includes all headers that do not depend
2284         on command-line macros.
2285         * testsuite/experimental/simd/tests/bits/main.h: New file.
2286         (iterate_abis, main): Moved from verify.h.
2287         * testsuite/experimental/simd/tests/bits/verify.h
2288         (iterate_abis, main): Moved to main.h.
2289         * testsuite/experimental/simd/tests/bits/conversions.h: Add
2290         include guard.
2291         (genHalfBits): Simplify.
2292         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
2293         guard.
2294         (make_alternating_mask): Moved from mask_loadstore.
2295         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
2296         include guard.
2297         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
2298         * testsuite/experimental/simd/tests/mask_loadstore.cc
2299         (make_mask, make_alternating_mask): Removed.
2300         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
2301         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
2302         Removed.
2303         * testsuite/experimental/simd/tests/abs.cc: Only include
2304         bits/main.h.
2305         Ditto.
2306         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
2307         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
2308         * testsuite/experimental/simd/tests/casts.cc: Ditto.
2309         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
2310         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
2311         * testsuite/experimental/simd/tests/generator.cc: Ditto.
2312         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
2313         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
2314         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
2315         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
2316         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
2317         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
2318         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
2319         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
2320         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
2321         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
2322         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
2323         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
2324         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
2325         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
2326         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
2327         * testsuite/experimental/simd/tests/simd.cc: Ditto.
2328         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
2329         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
2330         * testsuite/experimental/simd/tests/splits.cc: Ditto.
2331         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
2332         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
2333         * testsuite/experimental/simd/tests/where.cc: Ditto.
2334
2335 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2336
2337         * testsuite/experimental/simd/README.md: Document the timeout
2338         and timeout-factor directives. Minor typo fixed.
2339
2340 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2341
2342         PR libstdc++/108030
2343         * include/experimental/bits/simd_detail.h: Define
2344         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
2345         * include/experimental/bits/simd.h: Annotate lambdas with
2346         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
2347         * include/experimental/bits/simd_builtin.h: Ditto.
2348         * include/experimental/bits/simd_converter.h: Ditto.
2349         * include/experimental/bits/simd_fixed_size.h: Ditto.
2350         * include/experimental/bits/simd_math.h: Ditto.
2351         * include/experimental/bits/simd_neon.h: Ditto.
2352         * include/experimental/bits/simd_x86.h: Ditto.
2353
2354 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2355
2356         * include/experimental/bits/simd.h
2357         (_SimdWrapper::_M_is_constprop_none_of)
2358         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
2359         computed result still satisfies __builtin_constant_p.
2360
2361 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2362
2363         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
2364         ellipsis character.
2365
2366 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2367
2368         * include/Makefile.am: Add new header.
2369         * include/Makefile.in: Regenerate.
2370         * include/experimental/synchronized_value: New file.
2371         * testsuite/experimental/synchronized_value.cc: New test.
2372
2373 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2374
2375         * include/experimental/optional: Fix header name in comment.
2376
2377 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2378
2379         * include/std/format (__format::_Arg_store): New class template.
2380         (basic_format_args): Remove nested type _Store and add deduction
2381         guide from _Arg_store.
2382         (basic_format_arg, make_format_args): Adjust.
2383         * testsuite/std/format/arguments/lwg3810.cc: New test.
2384
2385 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2386
2387         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
2388         constraints to constructors and add deleted overloads for the
2389         dangling cases, as per P2255R2.
2390         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
2391         make dangling cases ill-formed.
2392         * testsuite/20_util/pair/dangling_ref.cc: New test.
2393
2394 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2395
2396         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
2397
2398 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2399
2400         * include/ext/throw_allocator.h: Use reserved names for
2401         parameters.
2402
2403 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2404
2405         * testsuite/17_intro/names_pstl.cc: Add space after effective
2406         target name.
2407
2408 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2409
2410         * include/pstl/algorithm_fwd.h (__pattern_search_n)
2411         (__brick_unique_copy, __brick_adjacent_find)
2412         (__brick_generate_n, __pattern_generate_n): Use reserved names
2413         for parameters.
2414         * include/pstl/algorithm_impl.h (__brick_unique_copy)
2415         (__pattern_reverse, __brick_generate_n): Likewise.
2416         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
2417         (__prefer_parallel_tag): Likewise.
2418         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
2419         * include/pstl/glue_numeric_defs.h (adjacent_difference):
2420         Likewise.
2421         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
2422         Likewise.
2423         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
2424         * include/pstl/unseq_backend_simd.h (_Combiner)
2425         (__simd_min_element, __simd_minmax_element): Likewise.
2426         * testsuite/17_intro/names_pstl.cc: New test.
2427
2428 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2429
2430         * include/bits/fs_ops.h (create_directory): Use reserved name
2431         for parameter.
2432         * include/bits/ranges_algo.h (__contains_subrange_fn):
2433         Likewise.
2434         * include/bits/regex_automaton.h (_State_base::_M_print):
2435         Likewise.
2436         * include/bits/regex_automaton.tcc(_State_base::_M_print):
2437         Likewise.
2438         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
2439         * include/experimental/bits/fs_ops.h (create_directory):
2440         Likewise.
2441         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
2442         (recursive_timed_mutex:_M_clocklock): Likewise.
2443         * include/std/tuple (basic_common_reference): Likewise.
2444         * libsupc++/cxxabi_init_exception.h
2445         (__cxa_init_primary_exception): Likewise.
2446         * testsuite/17_intro/names.cc: Add checks.
2447
2448 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
2449
2450         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
2451         to www.open-std.org and https.
2452         * doc/html/manual/status.html: Regenerate.
2453
2454 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
2455
2456         PR libstdc++/103934
2457         * include/std/atomic (atomic_flag_wait): Add.
2458         (atomic_flag_wait_explicit): Add.
2459         (atomic_flag_notify): Add.
2460         (atomic_flag_notify_explicit): Add.
2461         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
2462         Add test case to cover missing atomic_flag free functions.
2463
2464 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
2465
2466         PR libstdc++/103934
2467         * include/std/atomic (atomic_flag_test): Add.
2468         (atomic_flag_test_explicit): Add.
2469         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
2470         test case to cover missing atomic_flag free functions.
2471         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
2472         Likewise.
2473
2474 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
2475
2476         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
2477         "The Component Object Model" reference.
2478         * doc/html/manual/policy_data_structures.html: Regenerate.
2479
2480 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
2481
2482         * doc/xml/manual/containers.xml: Tweak a link to N1780
2483         (C++ standard).
2484         * doc/html/manual/associative.html: Regenerate.
2485
2486 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
2487
2488         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
2489         * doc/html/manual/facets.html: Regenerate.
2490
2491 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
2492
2493         * doc/xml/manual/policy_data_structures_biblio.xml: Update
2494         link to "Worst-case efficient priority queues".
2495         * doc/html/manual/policy_data_structures.html: Regenerate.
2496
2497 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2498
2499         * doc/xml/manual/using.xml: Document newly-freestanding
2500         headers and the effect of the -ffreestanding flag.
2501         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
2502         completed.
2503         * doc/xml/manual/configure.xml: Document that hosted installs
2504         respect __STDC_HOSTED__.
2505         * doc/xml/manual/test.xml: Document how to run tests in
2506         freestanding mode.
2507         * doc/html/*: Regenerate.
2508
2509 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2510
2511         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
2512         (__find_last_if_fn): Likewise.
2513
2514 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2515
2516         * include/std/type_traits: Add diagnostic pragmas around
2517         references to deprecated std::aligned_storage and
2518         std::aligned_union traits.
2519         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
2520         Add dg-warning for et c++23.
2521         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
2522         Likewise.
2523         * testsuite/20_util/aligned_storage/value.cc: Likewise.
2524         * testsuite/20_util/aligned_union/1.cc: Likewise.
2525         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
2526         Likewise.
2527
2528 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2529
2530         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
2531         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
2532         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
2533         * include/std/type_traits (aligned_storage, aligned_union)
2534         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
2535         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
2536         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
2537
2538 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2539
2540         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
2541         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
2542         consistent with other 'deprecated' macros.
2543         * include/std/type_traits (is_pod, is_pod_v): Use
2544         _GLIBCXX20_DEPRECATED_SUGGEST instead.
2545
2546 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2547
2548         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
2549         * Makefile.in: Regenerate.
2550         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
2551         There's no history to be compatible with.
2552         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
2553         source files from the build.
2554         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2555         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2556         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2557         * src/Makefile.in: Regenerate.
2558         * src/c++11/Makefile.in: Regenerate.
2559         * src/c++17/Makefile.in: Regenerate.
2560         * src/c++20/Makefile.in: Regenerate.
2561         * src/c++98/Makefile.in: Regenerate.
2562
2563 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2564
2565         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
2566         filesystem, libbacktrace and experimental.
2567         * src/Makefile.in: Regenerate.
2568
2569 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
2570
2571         PR libstdc++/108672
2572         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
2573         instead of int32_t.
2574
2575 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
2576
2577         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
2578         * doc/html/manual/documentation_hacking.html: Regenerate.
2579
2580 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
2581
2582         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
2583         storage to the move-from instance when allocators are equal.
2584         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
2585         New test case.
2586
2587 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
2588
2589         * config/os/gnu-linux/os_defines.h [!__linux__]
2590         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
2591
2592 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2593
2594         * include/bits/ranges_algo.h (__find_last_fn, find_last):
2595         Define.
2596         (__find_last_if_fn, find_last_if): Define.
2597         (__find_last_if_not_fn, find_last_if_not): Define.
2598         * testsuite/25_algorithms/find_last/1.cc: New test.
2599         * testsuite/25_algorithms/find_last_if/1.cc: New test.
2600         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
2601
2602 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2603
2604         * include/bits/ranges_algo.h (out_value_result): Define.
2605         (iota_result): Define.
2606         (__iota_fn, iota): Define.
2607         * testsuite/25_algorithms/iota/1.cc: New test.
2608
2609 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2610
2611         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
2612         (__contains_subrange_fn, contains_subrange): Define.
2613         * testsuite/25_algorithms/contains/1.cc: New test.
2614         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
2615
2616 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2617
2618         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
2619         * doc/html/manual/abi.html: Regenerate.
2620
2621 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2622
2623         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
2624         errc::function_not_supported instead of errc::not_supported.
2625
2626 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2627
2628         * include/std/sstream  (basic_stringbuf::view): Define for old
2629         std::string ABI.
2630         (basic_istringstream::view, basic_0stringstream::view)
2631         (basic_stringstream::view): Likewise.
2632         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
2633         { dg-require-effective-target cxx11_abi }.
2634         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
2635         Likewise.
2636         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
2637         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
2638         Likewise.
2639         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
2640         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
2641         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
2642         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
2643         Likewise.
2644
2645 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2646
2647         PR libstdc++/108636
2648         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
2649         conversion operators for directory iterator comparisons with
2650         std::default_sentinel_t.
2651         * include/bits/fs_path.h (path::path(string_view, _Type))
2652         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
2653         definitions to ...
2654         * src/c++17/fs_path.cc: ... here.
2655         * testsuite/27_io/filesystem/path/108636.cc: New test.
2656
2657 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2658
2659         * include/std/variant (variant::operator=): Implement resolution
2660         of LWG 3585.
2661         * testsuite/20_util/variant/lwg3585.cc: New test.
2662
2663 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2664
2665         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
2666         link to https.
2667         * doc/html/manual/using_exceptions.html: Regenerate.
2668
2669 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2670
2671         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
2672         * doc/html/manual/debug.html: Regenerate.
2673
2674 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2675
2676         * src/c++11/random.cc (random_device::_M_fini): Do not try to
2677         close the file handle if the target doesn't support the
2678         /dev/random and /dev/urandom files.
2679
2680 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2681
2682         * config/os/generic/error_constants.h (errc::value_too_large)
2683         [__AVR__]: Define.
2684         * src/c++11/system_error.cc
2685         (system_category::default_error_condition) [__AVR__]: Only match
2686         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
2687         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
2688         for ENOENT etc. in switch.
2689         (fs::remove_all) [__AVR__]: Likewise.
2690         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
2691         close etc.
2692
2693 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2694
2695         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
2696         embed_zoneinfo=no
2697         * configure: Regenerate.
2698
2699 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
2700
2701         PR testsuite/108632
2702         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
2703         struct at end of S0.
2704
2705 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
2706
2707         * doc/xml/manual/shared_ptr.xml: Move links from both
2708         http://open-std.org and http://www.open-std.org to
2709         https://www.open-std.org.
2710         * doc/html/manual/memory.html: Regenerate.
2711
2712 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2713
2714         * doc/xml/manual/appendix_contributing.xml: Adjust link to
2715         ISO C++ standard at ANSI.
2716         Move link to www.open-std.org to https.
2717         * doc/html/manual/appendix_contributing.html: Regenerate.
2718
2719 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2720
2721         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
2722         links to https.
2723         * doc/html/manual/documentation_hacking.html: Regenerate.
2724
2725 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2726
2727         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
2728         * doc/html/manual/abi.html: Regenerate.
2729
2730 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
2731
2732         PR libstdc++/108568
2733         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
2734         include features.h if present and then check __GLIBC__ and
2735         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
2736         __GLIBC_PREREQ which isn't defined yet.
2737
2738 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2739
2740         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
2741         string literal.
2742
2743 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2744
2745         PR libstdc++/108554
2746         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
2747
2748 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2749
2750         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
2751         rules named "+" for compatibility with older tzdata.zi files.
2752
2753 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2754
2755         PR libstdc++/108554
2756         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
2757         nonnull attribute.
2758         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
2759         attributes.
2760         * testsuite/23_containers/map/modifiers/108554.cc: New test.
2761
2762 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2763
2764         PR libstdc++/108530
2765         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
2766         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
2767
2768 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
2769
2770         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
2771         use https.
2772         * doc/html/manual/bugs.html: Regenerate.
2773
2774 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2775
2776         PR libstdc++/108530
2777         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
2778         /etc/sysconfig/clock.
2779
2780 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2781
2782         PR libstdc++/102301
2783         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
2784         std::make_reverse_iterator.
2785         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
2786         (make_from_tuple): Add static assertion from P2255 to diagnose
2787         dangling references.
2788         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
2789         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
2790
2791 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
2792
2793         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
2794         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
2795         (_Safe_iterator::operator++(int)): Use latter.
2796         (_Safe_iterator::operator--(int)): Likewise.
2797         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
2798         check.
2799         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
2800         New.
2801         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
2802         (_Safe_local_iterator::operator++(int)): Use latter.
2803         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
2804         entry associated to the array entry.
2805
2806 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2807
2808         * include/bits/fs_path.h (u8path): Add deprecated attribute.
2809         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
2810         -Wno-deprecated-declarations for C++20 and later.
2811         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
2812         Likewise.
2813         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
2814         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
2815         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
2816
2817 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2818
2819         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
2820         Always call _M_fini and _M_getentropy.
2821
2822 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
2823
2824         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
2825         to www.open-std.org to use https.
2826         (COM: Component Model Object Technologies): Rename from...
2827         (The Component Object Model): ...to.
2828         * doc/html/manual/policy_data_structures.html: Regenerate.
2829
2830 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
2831
2832         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
2833         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
2834         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
2835
2836 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
2837
2838         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
2839         of $host. Fix check for file being present during native build.
2840         * configure: Regenerate.
2841
2842 2023-01-17  Martin Liska  <mliska@suse.cz>
2843
2844         * src/libbacktrace/Makefile.in: Regenerate.
2845
2846 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2847
2848         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
2849
2850 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2851
2852         PR libstdc++/108413
2853         * include/c_compatibility/stdatomic.h: Change copyright line to
2854         be consistent with other headers contributed under DCO terms.
2855         * include/std/expected: Add full stop to copyright line.
2856         * src/c++20/tzdb.cc: Likewise.
2857
2858 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
2859
2860         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
2861         https.
2862         * doc/xml/manual/status_cxx2017.xml: Ditto.
2863         * doc/xml/manual/status_cxx2020.xml: Ditto.
2864         * doc/xml/manual/status_cxx2023.xml: Ditto.
2865         * doc/html/manual/status.html: Regenerate.
2866
2867 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2868
2869         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
2870         and fail gracefully if defining the weak symbol doesn't work.
2871
2872 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
2873
2874         PR libstdc++/108288
2875         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
2876         fix to other iterator category.
2877         (_Safe_iterator<>::operator--(int)): Likewise.
2878         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
2879         Fix deadlock.
2880         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
2881         (invalid_local_iterator_post_increment): New.
2882         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
2883         New test.
2884         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
2885         New test.
2886
2887 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2888
2889         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
2890         dg-options.
2891
2892 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2893
2894         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
2895
2896 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
2897
2898         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
2899         windows.h. Add pecoff as FORMAT_FILE.
2900         * config.h.in: Regenerate.
2901         * configure: Regenerate.
2902         * src/libbacktrace/Makefile.am: Regenerate.
2903         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
2904
2905 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
2906
2907         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
2908         raw __name if __cxa_demangle could not demangle it.
2909
2910 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2911
2912         PR libstdc++/108409
2913         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
2914         variable.
2915
2916 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2917
2918         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
2919         loading tzdb.
2920         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
2921         effective target.
2922         * testsuite/std/time/tzdb_list/1.cc: Likewise.
2923
2924 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2925
2926         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
2927         --with-libstdcxx-zoneinfo-dir configure option with
2928         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
2929         a directory.
2930         * config.h.in: Regenerate.
2931         * configure: Regenerate.
2932         * doc/xml/manual/configure.xml: Document configure option.
2933         * doc/html/manual/configure.html: Regenerate.
2934         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
2935         * src/c++20/Makefile.in: Regenerate.
2936         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
2937         null pointer if no directory is configured.
2938         (zoneinfo_dir): Replace with ...
2939         (zoneinfo_file): New function.
2940         (tzdata_stream): New istream class.
2941         (remote_version, reload_tzdb): Use tzdata_stream.
2942         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
2943         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
2944         tzdata.zi file in default location.
2945         * src/c++20/tzdata.zi: New file.
2946
2947 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2948
2949         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
2950         * testsuite/std/time/month_day/io.cc: New test.
2951         * testsuite/std/time/month_day_last/io.cc: New test.
2952         * testsuite/std/time/month_weekday/io.cc: New test.
2953         * testsuite/std/time/month_weekday_last/io.cc: New test.
2954         * testsuite/std/time/weekday_indexed/io.cc: New test.
2955         * testsuite/std/time/weekday_last/io.cc: New test.
2956         * testsuite/std/time/year_month/io.cc: New test.
2957         * testsuite/std/time/year_month_day_last/io.cc: New test.
2958         * testsuite/std/time/year_month_weekday/io.cc: New test.
2959         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
2960
2961 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
2962
2963         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
2964         specifications.
2965         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
2966         export.
2967
2968 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2969
2970         * include/bits/std_mutex.h: Include <errno.h>.
2971
2972 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
2973
2974         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
2975         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
2976         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
2977         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
2978         std::make_unique with a freestanding-compatible wrapper around
2979         unique_ptr.
2980         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
2981         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
2982         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
2983         Ditto.
2984         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
2985         of __cpp_lib_ranges in !HOSTED.
2986
2987 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
2988
2989         * include/Makefile.am: Install bits/char_traits.h,
2990         std/string_view
2991         * include/Makefile.in: Regenerate.
2992         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
2993         mbstate-only bits behind appropriate #ifs.
2994         * include/std/string_view: Gate <iostream> functionality behind
2995         HOSTED.
2996         * include/std/version: Enable __cpp_lib_constexpr_string_view
2997         and __cpp_lib_starts_ends_with in !HOSTED.
2998         * include/std/ranges: Re-enable __is_basic_string_view on
2999         freestanding, include <string_view> directly.
3000         * include/precompiled/stdc++.h: Include <string_view> when
3001         !HOSTED too.
3002         * testsuite/20_util/function_objects/searchers.cc: Skip testing
3003         boyer_moore searchers on freestanding
3004         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
3005         <string>-related tests behind __STDC_HOSTED__.
3006         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
3007         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
3008         unused <stdexcept> include.
3009         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
3010         unused <vector> include.
3011         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
3012         Guard <string> related testing behind __STDC_HOSTED__.
3013         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
3014         Guard <stdexcept> related tests behind __STDC_HOSTED__.
3015         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
3016         Ditto.
3017         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
3018         Guard <stdexcept> tests behind __STDC_HOSTED__.
3019         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
3020         Enable test on freestanding, guard <stdexcept> bits behind
3021         __STDC_HOSTED__.
3022         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
3023         Guard <stdexcept> bits behind __STDC_HOSTED__.
3024         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
3025         Ditto.
3026
3027 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
3028
3029         PR libstdc++/86419
3030         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
3031         errors in incomplete multibyte sequences.
3032         (utf16_in): Remove surrogates parameter. Fix conditions for
3033         returning partial.
3034         (utf16_out): Fix condition for returning partial.
3035         (ucs2_in): Do not pass surrogates argument to utf16_in.
3036         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
3037         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
3038         tests.
3039         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
3040         test.
3041
3042 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
3043
3044         PR libstdc++/108331
3045         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
3046         __GTHREAD_LEGACY_MUTEX_T if defined.
3047
3048 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
3049
3050         PR libstdc++/108327
3051         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
3052         Export __try_use_facet specializations for facets in namespace
3053         __gnu_cxx_ldbl128.
3054         * config/os/gnu-linux/ldbl-ieee128-extra.ver
3055         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
3056         __gnu_cxx_ieee128.
3057         * testsuite/util/testsuite_abi.cc: Add to lists of known and
3058         latest versions.
3059
3060 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
3061
3062         * include/bits/std_mutex.h: Remove <system_error> include.
3063         * include/std/condition_variable: Add <bits/error_constants.h>
3064         include.
3065         * include/std/mutex: Likewise.
3066         * include/std/shared_mutex: Likewise.
3067
3068 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
3069
3070         PR libstdc++/77691
3071         * include/experimental/memory_resource
3072         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
3073         (do_allocate, do_deallocate): Check it.
3074         * testsuite/experimental/memory_resource/new_delete_resource.cc:
3075         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
3076
3077 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
3078
3079         * doc/xml/manual/abi.xml: Add latest library versions.
3080         * doc/html/manual/abi.html: Regenerate.
3081
3082 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
3083
3084         PR libstdc++/107189
3085         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
3086         unused _Alloc_node instance.
3087
3088 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
3089
3090         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
3091         Define as unsigned long if always lock-free, and unsigned int
3092         otherwise.
3093
3094 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
3095
3096         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
3097         __catch macros for exception handling.
3098
3099 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
3100
3101         PR libstdc++/108221
3102         * include/bits/stl_algobase.h (__lg): Replace six overloads with
3103         a single function template for all integer types.
3104         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
3105         arithmetic results back to _Distance.
3106
3107 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
3108
3109         PR libstdc++/108221
3110         * include/std/span (span::span()): Un-simplify constraint to
3111         work for size_t of lesser rank than int.
3112
3113 2023-01-07  LIU Hao  <lh_mouse@126.com>
3114
3115         PR middle-end/108300
3116         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
3117         <windows.h>.
3118         * src/c++11/thread.cc: Likewise.
3119         * src/c++17/fs_ops.cc: Likewise.
3120         * src/filesystem/ops.cc: Likewise.
3121
3122 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3123
3124         PR libstdc++/108228
3125         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
3126
3127 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3128
3129         PR libstdc++/108235
3130         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
3131         template and partial specialization for synchronizing access to
3132         time_zone::_Impl::infos.
3133         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
3134         rules_counter.
3135
3136 2023-01-06  Patrick Palka  <ppalka@redhat.com>
3137
3138         PR libstdc++/108260
3139         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
3140         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
3141         (__cpp_lib_ranges_chunk): Likewise.
3142         (__cpp_lib_ranges_slide): Likewise.
3143         (__cpp_lib_ranges_chunk_by): Likewise.
3144         (__cpp_lib_ranges_join_with): Likewise.
3145         (__cpp_lib_ranges_repeat): Likewise.
3146         (__cpp_lib_ranges_stride): Likewise.
3147         (__cpp_lib_ranges_cartesian_product): Likewise.
3148         (__cpp_lib_ranges_as_rvalue): Likewise.
3149         * include/std/version: Ditto.
3150         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
3151         feature-test macro.
3152         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
3153         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
3154         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
3155         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
3156         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
3157         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
3158         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
3159         * testsuite/std/ranges/repeat/1.cc: Likewise.
3160         * testsuite/std/ranges/zip/1.cc: Likewise.
3161         * testsuite/std/ranges/version_c++23.cc: New test.
3162
3163 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3164
3165         PR libstdc++/108214
3166         * include/std/bitset (operator>>): Use alloca in the right
3167         scope, not in a constructor.
3168         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
3169
3170 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3171
3172         PR libstdc++/108221
3173         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
3174         Disable visiting floating-point types.
3175
3176 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3177
3178         PR libstdc++/108288
3179         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
3180         (_Safe_iterator::operator--(int)): Do not hold lock around
3181         construction of return value.
3182
3183 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
3184
3185         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
3186         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
3187         lock release.  Revise loop.
3188         (__atomic_add): Likewise.
3189
3190 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3191
3192         PR libstdc++/108212
3193         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
3194         variable.
3195         (StdChronoTimePointPrinter::to_string): Use it.
3196
3197 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3198
3199         PR libstdc++/108290
3200         * include/std/functional (_Bind_front): Add no_unique_address
3201         attribute to data members.
3202         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
3203         size of call wrappers with empty types for targets and bound
3204         arguments.
3205
3206 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3207
3208         PR libstdc++/108211
3209         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
3210         using only last component of the name.
3211
3212 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3213
3214         PR libstdc++/108228
3215         PR libstdc++/108235
3216         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
3217         the latest symbol version.
3218         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
3219         atomic<_Node*> is not always lock free.
3220         (USE_ATOMIC_LIST_HEAD): New macro.
3221         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
3222         definition of weak symbol.
3223         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
3224         (tzdb_list::_Node::_S_list_head): New function for accessing
3225         list head efficiently.
3226         (tzdb_list::_Node::_S_cache_list_head): New function for
3227         updating _S_list_head.
3228
3229 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3230
3231         PR libstdc++/108265
3232         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
3233         duration rep is unsigned.
3234         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
3235
3236 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
3237
3238         PR libstdc++/108228
3239         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
3240         Add __gnu_cxx::zoneinfo_dir_override().
3241
3242 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
3243
3244         PR libstdc++/108258
3245         * include/std/array (__array_traits<T, 0>::operator T*()): Add
3246         constexpr.
3247         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
3248         std::array<T, 0>::data().
3249
3250 \f
3251 Copyright (C) 2023 Free Software Foundation, Inc.
3252
3253 Copying and distribution of this file, with or without modification,
3254 are permitted in any medium without royalty provided the copyright
3255 notice and this notice are preserved.