libstdc++-v3/ChangeLog

   1 2023-07-13  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         PR libstdc++/110653
   4         * include/bits/basic_string.h (stoi, stol, stoul, stod): Do not
   5         depend on _GLIBCXX_USE_C99_STDLIB.
   6         [__LONG_WIDTH__ == __LONG_LONG_WIDTH__] (stoll, stoull): Define
   7         in terms of stol and stoul respectively.
   8         [__DBL_MANT_DIG__ == __LDBL_MANT_DIG__] (stold): Define in terms
   9         of stod.
  10
  11 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
  12
  13         PR libstdc++/95048
  14         * testsuite/27_io/filesystem/path/construct/95048.cc: Check
  15         conversions to wide strings.
  16         * testsuite/experimental/filesystem/path/construct/95048.cc:
  17         Likewise.
  18
  19 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
  20
  21         * config/io/basic_file_stdio.cc: Define LFS macros.
  22         (__basic_file<char>::open): Use fopen unconditionally.
  23         (get_file_offset): Use lseek unconditionally.
  24         (__basic_file<char>::seekoff): Likewise.
  25         (__basic_file<char>::showmanyc): Use fstat unconditionally.
  26
  27 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
  28
  29         PR libstdc++/110574
  30         * acinclude.m4 (GLIBCXX_CHECK_LFS): Check for fseeko and ftello
  31         and define _GLIBCXX_USE_FSEEKO_FTELLO.
  32         * config.h.in: Regenerate.
  33         * configure: Regenerate.
  34         * config/io/basic_file_stdio.cc (xwrite) [_GLIBCXX_USE_STDIO_PURE]:
  35         Check for fwrite error correctly.
  36         (__basic_file<char>::xsgetn) [_GLIBCXX_USE_STDIO_PURE]: Check for
  37         fread error correctly.
  38         (get_file_offset): New function.
  39         (__basic_file<char>::seekoff) [_GLIBCXX_USE_STDIO_PURE]: Use
  40         fseeko if available. Use get_file_offset instead of return value
  41         of fseek.
  42         (__basic_file<char>::showmanyc): Use get_file_offset.
  43
  44 2023-07-12  Ken Matsui  <kmatsui@gcc.gnu.org>
  45
  46         * include/std/type_traits (__make_unsigned_selector): Use
  47         __is_enum built-in trait.
  48         (__make_signed_selector): Likewise.
  49         (__underlying_type_impl): Likewise.
  50
  51 2023-07-06  Tianqiang Shuai  <1101282468@qq.com>
  52
  53         * config/io/basic_file_stdio.cc (xwrite) [USE_STDIO_PURE]: Fix
  54         first argument.
  55
  56 2023-07-06  Jonathan Wakely  <jwakely@redhat.com>
  57
  58         PR libstdc++/110574
  59         * doc/xml/manual/configure.xml: Describe stdio_pure argument to
  60         --enable-cstdio.
  61         * doc/html/manual/configure.html: Regenerate.
  62
  63 2023-07-05  Thomas Rodgers  <trodgers@redhat.com>
  64
  65         * testsuite/25_algorithms/pstl/alg_sorting/set.cc: Delete
  66         file.
  67         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
  68         New file.
  69         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
  70         Likewise.
  71         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
  72         Likewise.
  73         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
  74         Likewise.
  75         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h:
  76         Likewise.
  77
  78 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
  79
  80         * testsuite/23_containers/forward_list/debug/iterator1_neg.cc:
  81         Skip as UNSUPPORTED for C++98 mode.
  82         * testsuite/23_containers/forward_list/debug/iterator3_neg.cc:
  83         Likewise.
  84
  85 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
  86
  87         PR libstdc++/110542
  88         * include/bits/stl_uninitialized.h (__uninitialized_default_n):
  89         Do not use std::fill_n during constant evaluation.
  90
  91 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
  92
  93         * include/bits/vector.tcc (_M_default_append): Replace try-block
  94         with RAII types.
  95
  96 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
  97
  98         * include/bits/iterator_concepts.h (projected): Add typename.
  99
 100 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
 101
 102         * testsuite/27_io/headers/iosfwd/synopsis.cc: Make wsyncbuf and
 103         wosyncstream depend on _GLIBCXX_USE_CXX11_ABI.
 104
 105 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
 106
 107         * include/pstl/pstl_config.h (_PSTL_PRAGMA_SIMD_SCAN,
 108         _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN, _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN):
 109         Define to OpenMP 5.0 pragmas even for GCC 10.0+.
 110         (_PSTL_UDS_PRESENT): Define to 1 for GCC 10.0+.
 111
 112 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
 113
 114         * include/bits/alloc_traits.h (_Destroy): Qualify call.
 115         * include/bits/stl_construct.h (_Destroy, _Destroy_n): Likewise.
 116         * testsuite/23_containers/vector/cons/destroy-adl.cc: New test.
 117
 118 2023-07-03  Iain Sandoe  <iain@sandoe.co.uk>
 119
 120         * testsuite/lib/libstdc++.exp: Remove additional flag handled
 121         by Darwin specs.
 122
 123 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
 124
 125         PR libstdc++/110432
 126         * acinclude.m4 (GLIBCXX_CHECK_INIT_PRIORITY): New.
 127         * config.h.in: Regenerate.
 128         * configure: Regenerate.
 129         * configure.ac: Use GLIBCXX_CHECK_INIT_PRIORITY.
 130         * include/std/iostream: Use new autoconf macro as well as
 131         __has_attribute.
 132         * src/c++98/ios_base_init.h: Use new autoconf macro instead of
 133         __has_attribute.
 134
 135 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
 136
 137         * src/c++11/random.cc (random_device::_M_init): Add maybe_unused
 138         attribute.
 139
 140 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
 141
 142         PR libstdc++/105081
 143         * src/c++11/random.cc (random_device::_M_init): Throw
 144         std::system_error when the requested device is a valid token but
 145         not available at runtime.
 146
 147 2023-06-30  Hans-Peter Nilsson  <hp@axis.com>
 148
 149         PR libstdc++/108672
 150         * include/pstl/unseq_backend_simd.h (__simd_or): Re-apply using
 151         __INT32_TYPE__ instead of int32_t.
 152
 153 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
 154
 155         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define consistently
 156         with USE_ATOMIC_LIST_HEAD.
 157         (list_mutex): Replace global object with function. Use local
 158         static object when std::mutex constructor isn't constexpr.
 159
 160 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
 161
 162         PR libstdc++/110462
 163         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check that
 164         copy_file_range can be called with loff_t* arguments.
 165         * configure: Regenerate.
 166         * src/filesystem/ops-common.h (copy_file_copy_file_range):
 167         Use loff_t for offsets.
 168
 169 2023-06-29  Tom Tromey  <tromey@adacore.com>
 170
 171         * testsuite/lib/gdb-test.exp (gdb-test): Relax type-printer
 172         regexp.
 173
 174 2023-06-28  Jan Hubicka  <jh@suse.cz>
 175
 176         PR middle-end/109849
 177         * include/bits/c++config (std::__terminate): Mark cold.
 178         * include/bits/functexcept.h: Mark everything as cold.
 179         * libsupc++/exception: Mark terminate and unexpected as cold.
 180
 181 2023-06-26  Thomas Rodgers  <trodgers@redhat.com>
 182
 183         * include/pstl/algorithm_fwd.h: Synchronize with upstream.
 184         * include/pstl/algorithm_impl.h: Likewise.
 185         * include/pstl/execution_defs.h: Likewise.
 186         * include/pstl/execution_impl.h: Likewise.
 187         * include/pstl/glue_algorithm_impl.h: Likewise.
 188         * include/pstl/glue_execution_defs.h: Likewise.
 189         * include/pstl/glue_memory_impl.h: Likewise.
 190         * include/pstl/glue_numeric_impl.h: Likewise.
 191         * include/pstl/memory_impl.h: Likewise.
 192         * include/pstl/numeric_fwd.h: Likewise.
 193         * include/pstl/numeric_impl.h: Likewise.
 194         * include/pstl/parallel_backend.h: Likewise.
 195         * include/pstl/parallel_backend_serial.h: Likewise.
 196         * include/pstl/parallel_backend_tbb.h: Likewise.
 197         * include/pstl/parallel_impl.h: Likewise.
 198         * include/pstl/pstl_config.h: Likewise.
 199         * include/pstl/unseq_backend_simd.h: Likewise.
 200         * include/pstl/utils.h: Likewise.
 201         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc:
 202         Likewise.
 203         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc:
 204         Likewise.
 205         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc:
 206         Likewise.
 207         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc:
 208         Likewise.
 209         * testsuite/25_algorithms/pstl/alg_merge/merge.cc: Likewise.
 210         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc:
 211         Likewise.
 212         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc:
 213         Likewise.
 214         * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc:
 215         Likewise.
 216         * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc:
 217         Likewise.
 218         * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc:
 219         Likewise.
 220         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc:
 221         Likewise.
 222         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc:
 223         Likewise.
 224         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc:
 225         Likewise.
 226         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc:
 227         Likewise.
 228         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc:
 229         Likewise.
 230         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc:
 231         Likewise.
 232         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc:
 233         Likewise.
 234         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc:
 235         Likewise.
 236         * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc:
 237         Likewise.
 238         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc:
 239         Likewise.
 240         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc:
 241         Likewise.
 242         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc:
 243         Likewise.
 244         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc:
 245         Likewise.
 246         * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc:
 247         Likewise.
 248         * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc:
 249         Likewise.
 250         * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc:
 251         Likewise.
 252         * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc:
 253         Likewise.
 254         * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc:
 255         Likewise.
 256         * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc:
 257         Likewise.
 258         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc:
 259         Likewise.
 260         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc:
 261         Likewise.
 262         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc:
 263         Likewise.
 264         * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc:
 265         Likewise.
 266         * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc:
 267         Likewise.
 268         * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc:
 269         Likewise.
 270         * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc:
 271         Likewise.
 272         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc:
 273         Likewise.
 274         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc:
 275         Likewise.
 276         * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc:
 277         Likewise.
 278         * testsuite/25_algorithms/pstl/alg_sorting/includes.cc:
 279         Likewise.
 280         * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc:
 281         Likewise.
 282         * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc:
 283         Likewise.
 284         * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc:
 285         Likewise.
 286         * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc:
 287         Likewise.
 288         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc:
 289         Likewise.
 290         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc:
 291         Likewise.
 292         * testsuite/25_algorithms/pstl/alg_sorting/set.cc:
 293         Likewise.
 294         * testsuite/25_algorithms/pstl/alg_sorting/sort.cc:
 295         Likewise.
 296         * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc:
 297         Likewise.
 298         * testsuite/26_numerics/pstl/numeric_ops/reduce.cc:
 299         Likewise.
 300         * testsuite/26_numerics/pstl/numeric_ops/scan.cc:
 301         Likewise.
 302         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
 303         Likewise.
 304         * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc:
 305         Likewise.
 306         * testsuite/util/pstl/test_utils.h:
 307         Likewise.
 308
 309 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
 310
 311         PR libstdc++/110239
 312         * include/std/format (__format::__parse_integer): Fix buffer
 313         overflow for wide chars.
 314         (formatter<const void*, C>::format): Cast to uintptr_t instead
 315         of uint64_t.
 316         * testsuite/std/format/string.cc: Test too-large widths.
 317
 318 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
 319
 320         * include/bits/iterator_concepts.h (projected): Replace class
 321         template with alias template denoting an ADL-proofed helper.
 322         (incremental_traits<projected<Iter, Proj>>): Remove.
 323         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
 324         New test.
 325
 326 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
 327
 328         * include/debug/helper_functions.h (__get_distance)
 329         (__check_singular, __valid_range_aux, __valid_range): Qualify
 330         calls to disable ADL.
 331         (__check_singular_aux(const _Safe_iterator_base*)): Declare
 332         overload that was previously found via ADL.
 333
 334 2023-06-23  Jonathan Wakely  <jwakely@redhat.com>
 335
 336         * include/bits/vector.tcc (_M_realloc_insert): Replace try-block
 337         with RAII types.
 338
 339 2023-06-20  Jonathan Wakely  <jwakely@redhat.com>
 340
 341         * include/std/array (to_array(T(&)[N])): Remove redundant
 342         condition.
 343         (to_array(T(&&)[N])): Remove redundant std::move.
 344
 345 2023-06-16  Alexandre Oliva  <oliva@adacore.com>
 346
 347         * testsuite/20_util/from_chars/4.cc: Skip long double on
 348         aarch64-rtems.
 349
 350 2023-06-16  Joel Brobecker  <brobecker@adacore.com>
 351
 352         * configure.ac ["x${with_newlib}" = "xyes"]: Define
 353         HAVE_HYPOTF.  Add compile-checks for various long double
 354         math functions as well.
 355         * configure: Regenerate.
 356
 357 2023-06-14  Jonny Grant  <jg@jguk.org>
 358
 359         * doc/xml/manual/extensions.xml: Remove demangle exception
 360         description and include.
 361         * doc/html/manual/ext_demangling.html: Regenerate.
 362
 363 2023-06-10  Hans-Peter Nilsson  <hp@axis.com>
 364
 365         * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc (main)
 366         [! SIMULATOR_TEST]: Also exclude running test05.
 367         * testsuite/27_io/basic_istream/ignore/char/94749.cc: Ditto.
 368
 369 2023-06-09  Ken Matsui  <kmatsui@cs.washington.edu>
 370
 371         * include/std/type_traits: Use using instead of typedef
 372
 373 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 374
 375         PR libstdc++/110077
 376         * src/c++17/floating_from_chars.cc (from_chars) <_Float128>:
 377         Only define if _Float128 and long double have different
 378         representations.
 379
 380 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 381
 382         PR libstdc++/100285
 383         * include/experimental/internet [IPPROTO_TCP || IPPROTO_UDP]
 384         (basic_endpoint, basic_resolver_entry, resolver_base)
 385         (basic_resolver_results, basic_resolver): Only define if the tcp
 386         or udp protocols will be defined.
 387
 388 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 389
 390         * acinclude.m4 (libtool_VERSION): Update to 6.0.33.
 391         * configure: Regenerate.
 392         * doc/xml/manual/abi.xml: Add libstdc++.so.6.0.33.
 393         * doc/html/manual/abi.html: Regenerate.
 394
 395 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 396
 397         PR libstdc++/110149
 398         * include/std/format (formatter<const void*, charT>::parse):
 399         Only alow 0 and P for C++26 and non-strict modes.
 400         (formatter<const void*, charT>::format): Use toupper for P
 401         type, and insert zero-fill characters for 0 option.
 402         * testsuite/std/format/functions/format.cc: Check pointer
 403         formatting. Only check P2510R3 extensions conditionally.
 404         * testsuite/std/format/parse_ctx.cc: Only check P2510R3
 405         extensions conditionally.
 406
 407 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 408
 409         PR libstdc++/110167
 410         * include/std/array (to_array): Initialize arrays of trivial
 411         types using memcpy. For non-trivial types, use lambda
 412         expressions instead of a separate helper function.
 413         (__to_array): Remove.
 414         * testsuite/23_containers/array/creation/110167.cc: New test.
 415
 416 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
 417
 418         * testsuite/23_containers/deque/modifiers/emplace/52799.cc:
 419         Removed.
 420         * testsuite/23_containers/deque/modifiers/emplace/const_iterator.cc:
 421         Removed.
 422         * testsuite/23_containers/list/modifiers/emplace/52799.cc:
 423         Removed.
 424         * testsuite/23_containers/list/modifiers/emplace/const_iterator.cc:
 425         Removed.
 426         * testsuite/23_containers/vector/modifiers/emplace/52799.cc:
 427         Removed.
 428         * testsuite/23_containers/vector/modifiers/emplace/const_iterator.cc:
 429         Removed.
 430         * testsuite/23_containers/deque/modifiers/emplace/1.cc: New
 431         test.
 432         * testsuite/23_containers/list/modifiers/emplace/1.cc: New
 433         test.
 434         * testsuite/23_containers/vector/modifiers/emplace/1.cc: New
 435         test.
 436
 437 2023-06-07  Jakub Jelinek  <jakub@redhat.com>
 438
 439         PR libstdc++/110145
 440         * testsuite/20_util/to_chars/double.cc: Include <cfloat>.
 441         (double_to_chars_test_cases,
 442         double_scientific_precision_to_chars_test_cases_2,
 443         double_fixed_precision_to_chars_test_cases_2): #if out 1e126, 4.91e-6
 444         and 5.547e-6 tests if FLT_EVAL_METHOD is negative or larger than 1.
 445         Add unconditional tests with corresponding double constants
 446         0x1.7a2ecc414a03fp+418, 0x1.4981285e98e79p-18 and
 447         0x1.7440bbff418b9p-18.
 448
 449 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 450
 451         * testsuite/util/testsuite_abi.cc (check_version): Re-add
 452         CXXABI_1.3.14.
 453
 454 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 455
 456         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
 457         Require effective target exceptions_enabled instead of using
 458         dg-skip-if.
 459         * testsuite/23_containers/vector/capacity/constexpr.cc: Expect
 460         shrink_to_fit() to be a no-op without exceptions enabled.
 461         * testsuite/23_containers/vector/capacity/shrink_to_fit.cc:
 462         Likewise.
 463         * testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
 464         Require effective target exceptions_enabled.
 465         * testsuite/ext/malloc_allocator/check_allocate_max_size.cc:
 466         Likewise.
 467         * testsuite/ext/mt_allocator/check_allocate_max_size.cc:
 468         Likewise.
 469         * testsuite/ext/new_allocator/check_allocate_max_size.cc:
 470         Likewise.
 471         * testsuite/ext/pool_allocator/check_allocate_max_size.cc:
 472         Likewise.
 473         * testsuite/ext/throw_allocator/check_allocate_max_size.cc:
 474         Likewise.
 475
 476 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 477
 478         * testsuite/20_util/duration/cons/2.cc: Use values that aren't
 479         affected by rounding.
 480         * testsuite/20_util/from_chars/5.cc: Cast arithmetic result to
 481         double before comparing for equality.
 482         * testsuite/20_util/from_chars/6.cc: Likewise.
 483         * testsuite/20_util/variant/86874.cc: Use values that aren't
 484         affected by rounding.
 485         * testsuite/25_algorithms/lower_bound/partitioned.cc: Compare to
 486         original value instead of to floating-point-literal.
 487         * testsuite/26_numerics/random/discrete_distribution/cons/range.cc:
 488         Cast arithmetic result to double before comparing for equality.
 489         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/range.cc:
 490         Likewise.
 491         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/range.cc:
 492         Likewise.
 493         * testsuite/26_numerics/valarray/transcend.cc (eq): Check that
 494         the absolute difference is less than 0.01 instead of comparing
 495         to two decimal places.
 496         * testsuite/27_io/basic_istream/extractors_arithmetic/char/01.cc:
 497         Cast arithmetic result to double before comparing for equality.
 498         * testsuite/27_io/basic_istream/extractors_arithmetic/char/09.cc:
 499         Likewise.
 500         * testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc:
 501         Likewise.
 502         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc:
 503         Likewise.
 504         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc:
 505         Likewise.
 506         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/10.cc:
 507         Likewise.
 508         * testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
 509
 510 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 511
 512         Revert:
 513         2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 514
 515         * configure.ac: Use AS_IF.
 516         * configure: Regenerate.
 517
 518 2023-06-07  Thomas Schwinge  <thomas@codesourcery.com>
 519
 520         * testsuite/lib/prune.exp (libstdc++-dg-prune): Support
 521         'UNSUPPORTED: [...]: exception handling disabled'.
 522
 523 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 524
 525         * testsuite/util/testsuite_abi.cc (check_version): Add
 526         CXXABI_1.3.15 symver and make it the latestp. Remove
 527         GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
 528
 529 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 530             Jakub Jelinek  <jakub@redhat.com>
 531
 532         PR libstdc++/104772
 533         * include/std/limits: (numeric_limits<__float128>): Define
 534         for __STRICT_ANSI__ as well.
 535         * testsuite/18_support/numeric_limits/128bit.cc: Remove
 536         check for __STRICT_ANSI__.
 537
 538 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 539
 540         * configure.ac: Use AS_IF.
 541         * configure: Regenerate.
 542
 543 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 544
 545         PR libstdc++/109822
 546         * include/experimental/bits/simd_builtin.h (_S_store): Rewrite
 547         to avoid casts to other vector types. Implement store as
 548         succession of power-of-2 sized memcpy to avoid PR90424.
 549
 550 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 551
 552         PR libstdc++/110054
 553         * include/experimental/bits/simd_builtin.h (_S_masked_store):
 554         Call into deduced ABI's SimdImpl after conversion.
 555         * include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
 556         Don't use _mm_maskmoveu_si128. Use the generic fall-back
 557         implementation. Also fix masked stores without SSE2, which
 558         were not doing anything before.
 559
 560 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 561
 562         * include/experimental/bits/simd.h (__bit_cast): Use
 563         __gnu__::__vector_size__ instead of gnu::vector_size.
 564
 565 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 566
 567         PR libstdc++/110139
 568         * include/std/array (__array_traits<T, 0>::operator T*()): Make
 569         conversion operator explicit.
 570         (array::front): Use size_type as subscript operand.
 571         (array::data): Use static_cast to make conversion explicit.
 572         * testsuite/23_containers/array/element_access/110139.cc: New
 573         test.
 574
 575 2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
 576
 577         * include/bits/locale_classes.tcc: Remove check for
 578         codecvt<char8_t, char, mbstate_t> facet.
 579
 580 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 581
 582         * src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
 583         close-on-exec flag on file descriptors.
 584
 585 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 586
 587         PR libstdc++/108178
 588         * src/filesystem/ops-common.h (do_copy_file): Check for empty
 589         files by trying to read a character.
 590         * testsuite/27_io/filesystem/operations/copy_file_108178.cc:
 591         New test.
 592
 593 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
 594
 595         * acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
 596         * config.h.in: Regenerate.
 597         * configure: Regenerate.
 598         * src/filesystem/ops-common.h (copy_file_copy_file_range):
 599         Define new function.
 600         (do_copy_file): Use it.
 601
 602 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
 603
 604         * acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
 605         * config.h.in: Regenerate.
 606         * configure: Regenerate.
 607         * src/filesystem/ops-common.h (copy_file_sendfile): Define new
 608         function for sendfile logic. Loop to support large files. Skip
 609         zero-length files.
 610         (do_copy_file): Use it.
 611
 612 2023-06-04  Jason Merrill  <jason@redhat.com>
 613
 614         PR c++/97720
 615         * libsupc++/eh_call.cc (__cxa_call_terminate): Take void*.
 616         * config/abi/pre/gnu.ver: Add it.
 617
 618 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
 619
 620         * include/parallel/algobase.h: Include <parallel/search.h>.
 621
 622 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 623
 624         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
 625         Add const to equality operator.
 626
 627 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 628
 629         * include/std/expected (expected::and_then, expected::or_else)
 630         (expected::transform_error): Use _M_val and _M_unex instead of
 631         calling value() and error(), as per LWG 3938.
 632         (expected::transform): Likewise. Remove incorrect std::move
 633         calls from lvalue overloads.
 634         (expected<void, E>::and_then, expected<void, E>::or_else)
 635         (expected<void, E>::transform): Use _M_unex instead of calling
 636         error().
 637         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
 638         and transform, and for std::expected<void, E>.
 639         * testsuite/20_util/expected/lwg3938.cc: New test.
 640
 641 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 642
 643         PR libstdc++/110060
 644         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
 645         Remove.
 646         (vector::size, vector::capacity): Remove calls to _M_invariant.
 647         * include/bits/vector.tcc (vector::_M_fill_assign): Add
 648         optimization hint to reallocating path.
 649         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
 650         Likewise.
 651         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
 652         to...
 653         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
 654         ...here. Check assign(FwdIter, FwdIter) too.
 655         * testsuite/23_containers/vector/types/1.cc: Revert addition
 656         of -Wno-stringop-overread option.
 657
 658 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 659
 660         * doc/xml/manual/evolution.xml: Document removal of implicit
 661         allocator rebinding extensions in strict mode and for C++20.
 662         * doc/html/*: Regenerate.
 663
 664 2023-06-01  Jason Merrill  <jason@redhat.com>
 665
 666         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
 667         handlers in the cleanup phase.
 668
 669 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
 670
 671         PR libstdc++/110050
 672         * include/experimental/bits/simd.h (__vectorized_sizeof): With
 673         __have_neon_a32 only single-precision float works (in addition
 674         to integers).
 675
 676 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
 677
 678         * include/bits/stl_algo.h
 679         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
 680         * include/bits/stl_algobase.h: ...here.
 681         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
 682         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
 683         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
 684         Move...
 685         * include/parallel/algobase.h: ...here.
 686         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
 687         includes. Include <bits/stl_algobase.h>.
 688
 689 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 690
 691         PR libstdc++/109818
 692         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
 693         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
 694         * config.h.in: Regenerate.
 695         * configure: Regenerate.
 696         * include/c_global/cmath (float_t, double_t): Guard using new
 697         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
 698
 699 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 700
 701         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
 702         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
 703         for C99 rounding functions to here.
 704         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
 705         functions from here.
 706         * config.h.in: Regenerate.
 707         * configure: Regenerate.
 708         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
 709         of _GLIBCXX_USE_C99_MATH_TR1.
 710         * include/bits/random.tcc: Likewise.
 711         * include/c_compatibility/math.h: Likewise.
 712         * include/c_global/cmath: Likewise.
 713         * include/ext/random: Likewise.
 714         * include/ext/random.tcc: Likewise.
 715         * include/std/complex: Likewise.
 716         * testsuite/20_util/from_chars/4.cc: Likewise.
 717         * testsuite/20_util/from_chars/8.cc: Likewise.
 718         * testsuite/26_numerics/complex/proj.cc: Likewise.
 719         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
 720         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
 721         Likewise.
 722         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 723         Likewise.
 724         * testsuite/util/testsuite_random.h: Likewise.
 725
 726 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 727
 728         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
 729         function.
 730         (vector::size(), vector::capacity()): Call _M_invariant().
 731         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
 732         * testsuite/23_containers/vector/types/1.cc: Add suppression for
 733         false positive warning (PR110060).
 734
 735 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 736
 737         PR libstdc++/109921
 738         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
 739         defined before trying to use _Float128.
 740
 741 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 742
 743         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
 744         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
 745         * configure: Regenerate.
 746
 747 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 748
 749         * include/bits/unique_lock.h: Include <bits/error_constants.h>
 750         here for std::errc constants.
 751         * include/std/mutex: Do not include <bits/error_constants.h> and
 752         <exception> here.
 753
 754 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 755
 756         * configure.ac: Replace use of -o operator for test.
 757         * configure: Regenerate.
 758
 759 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 760
 761         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
 762         noexcept to all constructors except the default constructor.
 763         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
 764         (scoped_allocator_adaptor::outer_allocator): Likewise.
 765         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
 766
 767 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 768
 769         PR libstdc++/104772
 770         * include/std/limits (numeric_limits<__float128>): Define.
 771         * testsuite/18_support/numeric_limits/128bit.cc: New test.
 772
 773 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 774
 775         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
 776         msp430 to all 16-bit targets.
 777         * configure: Regenerate.
 778
 779 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 780
 781         PR libstdc++/109921
 782         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
 783         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
 784         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
 785         binary64.
 786         (from_chars(const char*, const char*, double&, chars_format)):
 787         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
 788         (from_chars(const char*, const char*, _Float128&, chars_format))
 789         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
 790         defined, otherwise parse a long double and convert to _Float128.
 791
 792 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 793
 794         PR libstdc++/109922
 795         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
 796         Add deprecated attribute to non-standard overload.
 797         * doc/xml/manual/evolution.xml: Document deprecation.
 798         * doc/html/*: Regenerate.
 799         * testsuite/27_io/manipulators/standard/char/1.cc: Add
 800         dg-warning for expected deprecated warning.
 801         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
 802         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
 803         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
 804
 805 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
 806
 807         * testsuite/20_util/from_chars/4.cc: Skip long double test06
 808         on x86_64-vxworks.
 809         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
 810         x86_64-vxworks.
 811
 812 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 813
 814         PR libstdc++/109822
 815         * include/experimental/bits/simd.h (to_native): Use int NTTP
 816         as specified in PTS2.
 817         (to_compatible): Likewise. Add missing tag to call mask
 818         generator ctor.
 819         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
 820         test.
 821
 822 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 823
 824         * testsuite/experimental/simd/tests/integer_operators.cc:
 825         Compute expected value differently to avoid getting turned into
 826         a vector shift.
 827
 828 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 829
 830         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
 831         double <-> (u)long conversion tests conditional on sizeof(long
 832         double) and sizeof(long).
 833
 834 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
 835
 836         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
 837         Negative __y is UB, so prefer signed compare.
 838
 839 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
 840
 841         * testsuite/util/testsuite_allocator.h (PointerBase): Add
 842         relational operators.
 843
 844 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
 845
 846         * testsuite/20_util/to_chars/long_double.cc: Expect execution
 847         fail on x86-vxworks.
 848
 849 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 850
 851         PR libstdc++/109949
 852         * include/experimental/bits/simd.h (__intrinsic_type): If
 853         __ALTIVEC__ is defined, map gnu::vector_size types to their
 854         corresponding __vector T types without losing unsignedness of
 855         integer types. Also prefer long long over long.
 856         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
 857         object to the expected unsigned vector type.
 858
 859 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 860
 861         PR libstdc++/109261
 862         * include/experimental/bits/simd.h (__intrinsic_type):
 863         Specialize __intrinsic_type<double, 8> and
 864         __intrinsic_type<double, 16> in any case, but provide the member
 865         type only with __aarch64__.
 866
 867 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 868
 869         PR libstdc++/109261
 870         * include/experimental/bits/simd_neon.h (_S_reduce): Add
 871         constexpr and make NEON implementation conditional on
 872         not __builtin_is_constant_evaluated.
 873
 874 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
 875
 876         PR libstdc++/109261
 877         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
 878         Avoid vector builtin subscripting in constant expressions.
 879         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
 880         (const_where_expression, where_expression, where)
 881         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
 882         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
 883         internal APIs).
 884         * include/experimental/bits/simd_builtin.h (__vector_permute)
 885         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
 886         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
 887         (_MaskImplBuiltin::_S_store): Add constexpr.
 888         (_CommonImplBuiltin::_S_store_bool_array)
 889         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
 890         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
 891         constant_evaluated case.
 892         * include/experimental/bits/simd_fixed_size.h
 893         (_S_masked_load): Reword comment.
 894         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
 895         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
 896         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
 897         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
 898         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
 899         constexpr.
 900         (_SimdTuple::operator[], _M_set): Add constexpr and add
 901         constant_evaluated case.
 902         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
 903         * include/experimental/bits/simd_scalar.h: Add constexpr.
 904         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
 905         constexpr and add constant_evaluated case.
 906         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
 907         (_S_less_equal): Value-initialize to satisfy constexpr
 908         evaluation.
 909         (_MaskImplX86::_S_load): Add constant_evaluated case.
 910         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
 911         case. Value-initialize local variables.
 912         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
 913         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
 914         case.
 915         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
 916         test.
 917
 918 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
 919
 920         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
 921         __infn into #ifdef'ed block.
 922         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
 923         constants only when used.
 924         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
 925         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
 926         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
 927         Likewise.
 928         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
 929         Move totest and expect1 into #ifdef'ed block.
 930
 931 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
 932
 933         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
 934         * doc/html/manual/strings.html: Regenerate.
 935
 936 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 937
 938         PR libstdc++/109883
 939         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
 940
 941 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 942
 943         PR libstdc++/109883
 944         * include/c_global/cmath (atan2, fmod, pow): Move
 945         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
 946         __gnu_cxx::__bfloat16_t overloads.
 947         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
 948         Likewise.
 949         (fma): Move __gnu_cxx::__promote_3 using template after
 950         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
 951
 952 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 953
 954         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
 955         checks for float_round_style and float_denorm_style.
 956
 957 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 958
 959         * include/bits/c++config: Add system_header pragma.
 960
 961 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 962
 963         * include/std/expected (expected::and_then, expected::or_else)
 964         (expected::transform, expected::transform_error): Fix exception
 965         specifications as per LWG 3877.
 966         (expected<void, E>::and_then, expected<void, E>::transform):
 967         Likewise.
 968         * testsuite/20_util/expected/lwg3877.cc: New test.
 969
 970 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
 971
 972         * include/std/type_traits: Use __bool_constant instead of
 973         integral_constant.
 974
 975 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 976
 977         * configure: Regenerate.
 978
 979 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 980
 981         PR libstdc++/109741
 982         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
 983         * config.h.in: Regenerate.
 984         * configure: Regenerate.
 985         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
 986         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
 987         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
 988         instead of hardcoded 64.
 989
 990 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 991
 992         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
 993         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
 994         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
 995         * config.h.in: Regenerate.
 996         * configure: Regenerate.
 997         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
 998         instead of _GLIBCXX_USE_C99_FENV_TR1.
 999         * include/c_global/cfenv: Likewise.
1000         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
1001         of _GLIBCXX_USE_C99_CTYPE_TR1.
1002
1003 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
1004
1005         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
1006         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
1007         <inttypes.h> features in C++11 mode and define
1008         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
1009         * config.h.in: Regenerate.
1010         * configure: Regenerate.
1011         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
1012         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
1013         of _GLIBCXX_USE_C99_STDINT_TR1.
1014         * include/c_compatibility/inttypes.h: Check
1015         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
1016         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
1017         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
1018         * include/c_compatibility/stdatomic.h: Check
1019         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
1020         * include/c_compatibility/stdint.h: Likewise.
1021         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
1022         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
1023         _GLIBCXX_USE_C99_INTTYPES_TR1 and
1024         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
1025         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
1026         instead of _GLIBCXX_USE_C99_STDINT_TR1.
1027         * include/std/atomic: Likewise.
1028         * src/c++11/cow-stdexcept.cc: Likewise.
1029         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
1030         Likewise.
1031         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
1032         Likewise.
1033
1034 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
1035
1036         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
1037         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
1038         * config.h.in: Regenerate.
1039         * configure: Regenerate.
1040         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
1041         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
1042         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
1043
1044 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
1045
1046         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
1047         assertion to ensure expected exception is throw.
1048
1049 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
1050
1051         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
1052         printer for chrono::zoned_time for cx11 ABI and tzdb effective
1053         target.
1054
1055 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
1056
1057         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
1058         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
1059         * configure: Regenerate.
1060
1061 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
1062
1063         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
1064         to check for nan, nanf, and nanl.
1065         * configure: Regenerate.
1066
1067 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
1068
1069         * include/bits/char_traits.h (char_traits<char16_t>): Do not
1070         depend on _GLIBCXX_USE_C99_STDINT_TR1.
1071         (char_traits<char32_t>): Likewise.
1072         * include/experimental/source_location: Likewise.
1073
1074 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
1075
1076         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
1077         (atomic_int_least16_t, atomic_uint_least16_t)
1078         (atomic_int_least32_t, atomic_uint_least32_t)
1079         (atomic_int_least64_t, atomic_uint_least64_t)
1080         (atomic_int_fast16_t, atomic_uint_fast16_t)
1081         (atomic_int_fast32_t, atomic_uint_fast32_t)
1082         (atomic_int_fast64_t, atomic_uint_fast64_t)
1083         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
1084         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
1085
1086 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
1087
1088         * include/bits/algorithmfwd.h (shuffle): Do not depend on
1089         _GLIBCXX_USE_C99_STDINT_TR1.
1090         * include/bits/ranges_algo.h (shuffle): Likewise.
1091         * include/bits/stl_algo.h (shuffle): Likewise.
1092         * include/ext/random: Likewise.
1093         * include/ext/throw_allocator.h (random_condition): Likewise.
1094         * include/std/random: Likewise.
1095         * src/c++11/cow-string-inst.cc: Likewise.
1096         * src/c++11/random.cc: Likewise.
1097
1098 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
1099
1100         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
1101         _GLIBCXX_USE_C99_STDINT_TR1.
1102
1103 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
1104
1105         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
1106         on _GLIBCXX_USE_C99_STDINT_TR1.
1107
1108 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
1109
1110         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
1111         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
1112         * testsuite/experimental/string_view/typedefs.cc: Likewise.
1113
1114 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
1115
1116         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
1117         (auto_locale, auto_ferounding): New class types.
1118         (from_chars_impl): Use auto_locale and auto_ferounding.
1119
1120 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
1121
1122         PR libstdc++/109772
1123         * include/std/chrono (hh_mm_ss::__fits): Remove variable
1124         template.
1125         (hh_mm_ss::__subseconds): Remove __fits from constraints.
1126         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
1127         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
1128         hh_mm_ss<duration<int, std::pico>>.
1129
1130 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
1131
1132         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
1133         * include/bits/basic_ios.h: Add static assertion checking
1134         traits_type::value_type.
1135         * include/bits/basic_string.h: Likewise. Do not rebind
1136         allocator, and add static assertion checking its value_type.
1137         (basic_string::_Alloc_traits_impl): Remove class template.
1138         (basic_string::_S_allocate): New static member function.
1139         (basic_string::assign): Use _S_allocate.
1140         * include/bits/basic_string.tcc (basic_string::_M_create)
1141         (basic_string::reserve, basic_string::_M_replace): Likewise.
1142         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
1143         Disable for C++20 and later.
1144         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
1145         Likweise.
1146
1147 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
1148
1149         PR libstdc++/109758
1150         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
1151         and negative zero correctly.
1152         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
1153
1154 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
1155
1156         * include/bits/hashtable_policy.h
1157         (_NodeBuilder<>::_S_build): Use __node_ptr.
1158         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
1159         (_AllocNode<>): Likewise.
1160         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
1161         to call std::is_permutation in the non-unique key implementation.
1162         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
1163         _M_begin() once.
1164         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
1165         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
1166         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
1167         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
1168         const_iterator.
1169         (_Hashtable<>::find): Likewise.
1170         (_Hashtable<>::_M_emplace): Likewise.
1171         (_Hashtable<>::_M_insert_unique): Likewise.
1172
1173 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
1174
1175         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
1176         Print floating-point durations correctly.
1177         (StdChronoTimePointPrinter): Support printing only the value,
1178         not the type name. Uncomment handling for known clocks.
1179         (StdChronoZonedTimePrinter): Remove type names from output.
1180         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
1181         (StdChronoTimeZonePrinter): Add equals sign to output.
1182         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
1183
1184 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
1185
1186         * testsuite/20_util/from_chars/4.cc: Skip long double test06
1187         on aarch64-vxworks.
1188         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
1189         aarch64-vxworks.
1190
1191 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
1192
1193         * doc/xml/manual/abi.xml (abi.versioning.history): Document
1194         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
1195         * doc/html/manual/abi.html: Regenerate.
1196
1197 2023-05-04  Florian Weimer  <fweimer@redhat.com>
1198
1199         * doc/xml/manual/abi.xml (abi.versioning.history): Add
1200         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
1201         libgcc_s.
1202
1203 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
1204
1205         * src/c++17/floating_from_chars.cc
1206         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
1207         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
1208         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
1209         _ZSt8to_charsPcS_u9__ieee128.
1210         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
1211         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
1212         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
1213         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
1214         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
1215
1216 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
1217
1218         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
1219         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
1220         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
1221         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
1222         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
1223         versions.
1224         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
1225         file.
1226
1227 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
1228             Jonathan Wakely  <jwakely@redhat.com>
1229
1230         PR libstdc++/109703
1231         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
1232         Initialize _M_string_length.
1233
1234 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
1235
1236         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1237         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
1238         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
1239         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1240         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
1241         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1242         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
1243         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1244
1245 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
1246
1247         PR libstdc++/109694
1248         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
1249         -Wattribute-alias.
1250
1251 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1252
1253         * include/bits/random.h (gamma_distribution): Add to the right
1254         doxygen group.
1255         (discrete_distribution, piecewise_constant_distribution)
1256         (piecewise_linear_distribution): Create a new doxygen group and
1257         fix the incomplete doxygen comments.
1258         * include/bits/uniform_int_dist.h (uniform_int_distribution):
1259         Add to doxygen group.
1260
1261 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1262
1263         * include/bits/uses_allocator.h: Add missing @file comment.
1264         * include/bits/regex.tcc: Remove stray doxygen comments.
1265         * include/experimental/memory_resource: Likewise.
1266         * include/std/bit: Tweak doxygen @cond comments.
1267         * include/std/expected: Likewise.
1268         * include/std/numbers: Likewise.
1269
1270 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1271
1272         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
1273         from header paths.
1274
1275 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
1276
1277         * include/bits/move.h: Simplify opening/closing namespace std.
1278
1279 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
1280
1281         PR libstdc++/108969
1282         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
1283         _ZSt21ios_base_library_initv.
1284         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
1285         symver and make it the latestp.
1286         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
1287         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
1288         * include/std/iostream: If init_priority attribute is supported
1289         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
1290         symbol into the object.
1291         * configure: Regenerated.
1292
1293 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1294
1295         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
1296         * include/std/format: Likewise.
1297
1298 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1299
1300         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
1301         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
1302
1303 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1304
1305         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
1306         HTML docs.
1307         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
1308         from doxygen docs.
1309         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
1310         Likewise.
1311         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
1312         Likewise.
1313         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
1314         Likewise.
1315         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
1316         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
1317         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
1318         (_DEFINE_BINARY_OPERATOR): Likewise.
1319
1320 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1321
1322         * include/bits/memory_resource.h: Improve doxygen comments.
1323         * include/std/memory_resource: Likewise.
1324
1325 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1326
1327         PR libstdc++/40380
1328         * include/bits/basic_string.h: Improve doxygen comments.
1329         * include/bits/cow_string.h: Likewise.
1330         * include/bits/forward_list.h: Likewise.
1331         * include/bits/fs_dir.h: Likewise.
1332         * include/bits/fs_path.h: Likewise.
1333         * include/bits/quoted_string.h: Likewise.
1334         * include/bits/stl_bvector.h: Likewise.
1335         * include/bits/stl_map.h: Likewise.
1336         * include/bits/stl_multimap.h: Likewise.
1337         * include/bits/stl_multiset.h: Likewise.
1338         * include/bits/stl_set.h: Likewise.
1339         * include/bits/stl_vector.h: Likewise.
1340         * include/bits/unordered_map.h: Likewise.
1341         * include/bits/unordered_set.h: Likewise.
1342         * include/std/filesystem: Likewise.
1343         * include/std/iomanip: Likewise.
1344
1345 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1346
1347         PR libstdc++/105081
1348         * src/c++11/random.cc (__throw_syserr): New function.
1349         (random_device::_M_init, random_device::_M_init_pretr1): Use new
1350         function for bad tokens.
1351         (random_device::_M_getval): Use new function for read errors.
1352         * testsuite/util/testsuite_random.h (random_device_available):
1353         Change catch handler to use std::system_error.
1354
1355 2023-04-24  Patrick Palka  <ppalka@redhat.com>
1356
1357         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
1358         Fix propagation of sign bit.
1359         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
1360         non-standard 'signed typedef-name'.  Add some compile-time tests
1361         for right-shifting a negative __max_diff_type value by more than
1362         one.
1363
1364 2023-04-19  Patrick Palka  <ppalka@redhat.com>
1365             Jonathan Wakely  <jwakely@redhat.com>
1366
1367         PR c++/100157
1368         * include/bits/utility.h (_Nth_type): Conditionally define in
1369         terms of __type_pack_element if available.
1370         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
1371         additional errors from the new built-in.
1372
1373 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
1374
1375         Revert:
1376         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1377
1378         PR libstdc++/108969
1379         * src/Makefile.am: Move globals_io.cc to here.
1380         * src/Makefile.in: Regenerate.
1381         * src/c++98/Makefile.am: Remove globals_io.cc from here.
1382         * src/c++98/Makefile.in: Regenerate.
1383         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
1384         symbol name and then export with GLIBCXX_3.4.31 symver.
1385         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
1386         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
1387         Regenerate.
1388         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
1389         Regenerate.
1390         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
1391         Regenerate.
1392         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
1393         Regenerate.
1394         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
1395         Regenerate.
1396         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
1397         Regenerate.
1398         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
1399         Regenerate.
1400         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
1401         Regenerate.
1402         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
1403
1404 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
1405
1406         Revert:
1407         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1408
1409         PR libstdc++/108969
1410         * config/abi/pre/gnu.ver: Fix preprocessor condition.
1411
1412 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1413
1414         * doc/xml/manual/extensions.xml: Fix example to declare and
1415         qualify std::free, and use NULL instead of 0.
1416         * doc/html/manual/ext_demangling.html: Regenerate.
1417         * libsupc++/cxxabi.h: Adjust doxygen comments.
1418
1419 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1420
1421         PR libstdc++/108969
1422         * config/abi/pre/gnu.ver: Fix preprocessor condition.
1423
1424 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1425
1426         PR libstdc++/108969
1427         * src/Makefile.am: Move globals_io.cc to here.
1428         * src/Makefile.in: Regenerate.
1429         * src/c++98/Makefile.am: Remove globals_io.cc from here.
1430         * src/c++98/Makefile.in: Regenerate.
1431         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
1432         symbol name and then export with GLIBCXX_3.4.31 symver.
1433         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
1434         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
1435         Regenerate.
1436         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
1437         Regenerate.
1438         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
1439         Regenerate.
1440         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
1441         Regenerate.
1442         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
1443         Regenerate.
1444         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
1445         Regenerate.
1446         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
1447         Regenerate.
1448         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
1449         Regenerate.
1450         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
1451
1452 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1453
1454         PR libstdc++/108827
1455         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
1456         for C++23.
1457         * include/std/ranges (range_adaptor_closure): Define for C++23.
1458         * include/std/version (__cpp_lib_ranges): Bump value for
1459         C++23.
1460         * testsuite/std/ranges/version_c++23.cc: Bump expected value
1461         of __cpp_lib_ranges.
1462         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
1463
1464 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1465
1466         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
1467         Define for C++23.
1468         (__cpp_lib_ranges_iota): Likewise.
1469         (__cpp_lib_ranges_find_last): Likewise.
1470         (__cpp_lib_fold): Rename to ...
1471         (__cpp_lib_ranges_fold): ... this.
1472         * include/std/version: As above.
1473         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
1474         renaming __cpp_lib_fold.
1475         * testsuite/std/ranges/version_c++23.cc: Verify values
1476         of the above feature-test macros.
1477
1478 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1479
1480         PR libstdc++/109525
1481         * include/std/ranges (views::_AsConst::operator()): Add
1482         missing const to constant_range test.
1483         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
1484         Improve formatting.  Adjust expected type of v2.
1485         (test03): New test.
1486
1487 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1488
1489         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
1490         (const_sentinel_t): Likewise.
1491         (range_const_reference_t): Likewise.
1492         (constant_range): Likewise.
1493         (__cust_access::__possibly_const_range): Likewise, replacing ...
1494         (__cust_access::__as_const): ... this.
1495         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
1496         (__cust_access::_CEnd::operator()): Likewise.
1497         (__cust_access::_CRBegin::operator()): Likewise.
1498         (__cust_access::_CREnd::operator()): Likewise.
1499         (__cust_access::_CData::operator()): Likewise.
1500         * include/bits/ranges_util.h (ranges::__detail::__different_from):
1501         Make it an alias of std::__detail::__different_from.
1502         (view_interface::cbegin): Define for C++23.
1503         (view_interface::cend): Likewise.
1504         * include/bits/stl_iterator.h (__detail::__different_from): Define.
1505         (iter_const_reference_t): Define for C++23.
1506         (__detail::__constant_iterator): Likewise.
1507         (__detail::__is_const_iterator): Likewise.
1508         (__detail::__not_a_const_iterator): Likewise.
1509         (__detail::__iter_const_rvalue_reference_t): Likewise.
1510         (__detail::__basic_const_iter_cat):: Likewise.
1511         (const_iterator): Likewise.
1512         (__detail::__const_sentinel): Likewise.
1513         (const_sentinel): Likewise.
1514         (basic_const_iterator): Likewise.
1515         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
1516         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
1517         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
1518         Likewise.
1519         (make_const_iterator): Define for C++23.
1520         (make_const_sentinel): Likewise.
1521         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
1522         (as_const_view): Likewise.
1523         (enable_borrowed_range<as_const_view>): Likewise.
1524         (views::__detail::__is_ref_view): Likewise.
1525         (views::__detail::__can_is_const_view): Likewise.
1526         (views::_AsConst, views::as_const): Likewise.
1527         * include/std/span (span::const_iterator): Likewise.
1528         (span::const_reverse_iterator): Likewise.
1529         (span::cbegin): Likewise.
1530         (span::cend): Likewise.
1531         (span::crbegin): Likewise.
1532         (span::crend): Likewise.
1533         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
1534         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
1535         behave independently of C++20 vs C++23.
1536         * testsuite/std/ranges/version_c++23.cc: Verify value of
1537         __cpp_lib_ranges_as_const macro.
1538         * testsuite/24_iterators/const_iterator/1.cc: New test.
1539         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
1540
1541 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1542
1543         * include/bits/ranges_base.h (__cust_access::__as_const)
1544         (__cust_access::_CBegin, __cust::cbegin)
1545         (__cust_access::_CEnd, __cust::cend)
1546         (__cust_access::_CRBegin, __cust::crbegin)
1547         (__cust_access::_CREnd, __cust::crend)
1548         (__cust_access::_CData, __cust::cdata): Move down definitions to
1549         shortly after the definition of input_range.
1550
1551 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1552
1553         * include/bits/ranges_algo.h: Include <optional> for C++23.
1554         (__cpp_lib_fold): Define for C++23.
1555         (in_value_result): Likewise.
1556         (__detail::__flipped): Likewise.
1557         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
1558         (__detail::__indirectly_binary_left_foldable): Likewise.
1559         (___detail:__indirectly_binary_right_foldable): Likewise.
1560         (fold_left_with_iter_result): Likewise.
1561         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
1562         (__fold_left_fn, fold_left): Likewise.
1563         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
1564         Likewise.
1565         (__fold_left_first_fn, fold_left_first): Likewise.
1566         (__fold_right_fn, fold_right): Likewise.
1567         (__fold_right_last_fn, fold_right_last): Likewise.
1568         * include/std/version (__cpp_lib_fold): Likewise.
1569         * testsuite/25_algorithms/fold_left/1.cc: New test.
1570         * testsuite/25_algorithms/fold_right/1.cc: New test.
1571
1572 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
1573
1574         * include/std/format (formatter): Add comment to deleted default
1575         constructor of primary template.
1576         (_Checking_scanner): Add static_assert.
1577
1578 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1579
1580         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
1581         * doc/html/*: Regenerate.
1582
1583 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1584
1585         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
1586         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
1587         namespace to avoid clashing with libc struct.
1588         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
1589         Likewise.
1590         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
1591         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
1592         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
1593         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
1594         * testsuite/experimental/synchronized_value.cc: Require gthreads
1595         and add missing option for pthreads targets.
1596
1597 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1598
1599         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
1600         for C++23.
1601         (__detail::__range_with_movable_reference): Likewise.
1602         (enumerate_view): Likewise.
1603         (enumerate_view::_Iterator): Likewise.
1604         (enumerate_view::_Sentinel): Likewise.
1605         (views::__detail::__can_enumerate_view): Likewise.
1606         (views::_Enumerate, views::enumerate): Likewise.
1607         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
1608         * testsuite/std/ranges/version_c++23.cc: Verify value of
1609         __cpp_lib_ranges_enumerate.
1610         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
1611
1612 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1613
1614         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
1615         Propagate _M_trailing_empty in the const-converting constructor
1616         as per LWG 3904.
1617         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
1618         assertion.
1619         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
1620
1621 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1622
1623         * src/c++17/floating_from_chars.cc: Include <algorithm>,
1624         <iterator>, <limits> and <cstdint>.
1625
1626 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1627
1628         PR libstdc++/108291
1629         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
1630         parameter types of the lambda wrapper passed to adjacent_find.
1631         (chunk_by_view::_M_find_prev): Likewise.
1632         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
1633         New tests.
1634
1635 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1636
1637         PR libstdc++/109482
1638         * include/experimental/internet (basic_endpoint::basic_endpoint()):
1639         Ensure that the required union members are active. Only define
1640         as constexpr for C++20 and later.
1641         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
1642         Likewise.
1643         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
1644         check constexpr default constructor for C++20 and later.
1645         * testsuite/experimental/net/internet/endpoint/extensible.cc:
1646         Likewise.
1647
1648 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1649
1650         * src/c++20/tzdata.zi: Import new file from 2023c release.
1651
1652 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1653
1654         * include/precompiled/stdc++.h (C++17): Don't double-include
1655         <charconv>, once with wrong conditions.
1656         * testsuite/18_support/96817.cc: Require hosted.
1657         * testsuite/18_support/bad_exception/59392.cc: Ditto.
1658         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
1659         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
1660         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
1661         Ditto.
1662
1663 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1664
1665         * include/bits/c++config: When __STDC_HOSTED__ is zero,
1666         disable _GLIBCXX_DEBUG and, if it was set, enable
1667         _GLIBCXX_ASSERTIONS.
1668         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
1669         Include <bits/c++config.h> when determining whether debug is
1670         set, in order to inherit the logic from above
1671
1672 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1673
1674         * testsuite/17_intro/versionconflict.cc: New test.
1675         * include/std/version: Allow disabling the system_header pragma
1676         via _GLIBCXX_TESTING_SYSHDR.
1677
1678 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1679
1680         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
1681         Synchronize the definition block with...
1682         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
1683         ... this one here.  Also define the 202202L value, rather than
1684         leaving it up to purely unique_ptr.h, so that the value is
1685         synchronized across all headers.
1686         (__gnu_debug::_Safe_iterator_base): Move into new conditional
1687         block.
1688         * include/std/memory (__cpp_lib_atomic_value_initialization):
1689         Define on freestanding under the same conditions as in
1690         atomic_base.h.
1691         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
1692         Also define on freestanding.
1693         (__cpp_lib_to_chars): Ditto.
1694         (__cpp_lib_gcd): Ditto.
1695         (__cpp_lib_gcd_lcm): Ditto.
1696         (__cpp_lib_raw_memory_algorithms): Ditto.
1697         (__cpp_lib_array_constexpr): Ditto.
1698         (__cpp_lib_nonmember_container_access): Ditto.
1699         (__cpp_lib_clamp): Ditto.
1700         (__cpp_lib_constexpr_char_traits): Ditto.
1701         (__cpp_lib_constexpr_string): Ditto.
1702         (__cpp_lib_sample): Ditto.
1703         (__cpp_lib_lcm): Ditto.
1704         (__cpp_lib_constexpr_iterator): Ditto.
1705         (__cpp_lib_constexpr_char_traits): Ditto.
1706         (__cpp_lib_interpolate): Ditto.
1707         (__cpp_lib_constexpr_utility): Ditto.
1708         (__cpp_lib_shift): Ditto.
1709         (__cpp_lib_ranges): Ditto.
1710         (__cpp_lib_move_iterator_concept): Ditto.
1711         (__cpp_lib_constexpr_numeric): Ditto.
1712         (__cpp_lib_constexpr_functional): Ditto.
1713         (__cpp_lib_constexpr_algorithms): Ditto.
1714         (__cpp_lib_constexpr_tuple): Ditto.
1715         (__cpp_lib_constexpr_memory): Ditto.
1716
1717 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
1718
1719         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
1720         timeout factor on hppa*-*-*.
1721
1722 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
1723
1724         * include/bits/regex.h (sub_match::swap): New function.
1725         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
1726
1727 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
1728
1729         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
1730         example program.
1731         * doc/html/manual/ext_demangling.html: Regenerate.
1732
1733 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1734
1735         PR tree-optimization/107087
1736         * include/bits/cow_string.h (basic_string::size()): Add
1737         optimizer hint that _S_empty_rep()._M_length is always zero.
1738         (basic_string::length()): Call size().
1739
1740 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1741
1742         PR libstdc++/109339
1743         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
1744         Add attribute access with access-mode 'none'.
1745         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
1746
1747 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1748
1749         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
1750         Revert change from member function to data member. Fix for
1751         constant evaluation by detecting which union member is active.
1752         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
1753         flag.
1754
1755 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1756
1757         PR libstdc++/109242
1758         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
1759         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
1760
1761 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1762
1763         * include/experimental/internet (ip::make_address): Implement
1764         missing overload.
1765         (ip::address_v4::broadcast()): Avoid undefined shift.
1766         (ip::basic_endpoint): Fix member functions for constexpr.
1767         (ip::basic_endpoint::_M_is_v6): Replace member function with
1768         data member, adjust member functions using it.
1769         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
1770         content.
1771         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
1772         constexpr checks to work in C++14.
1773         * testsuite/experimental/net/internet/address/v4/creation.cc:
1774         Likewise.
1775         * testsuite/experimental/net/internet/endpoint/cons.cc:
1776         Likewise.
1777         * testsuite/experimental/net/internet/network/v4/cons.cc:
1778         Likewise.
1779         * testsuite/experimental/net/internet/network/v4/members.cc:
1780         Likewise.
1781         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
1782
1783 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1784
1785         * include/std/expected (expected::value() &): Use const lvalue
1786         for unex member passed to bad_expected_access constructor, as
1787         per LWG 3843.
1788
1789 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1790
1791         PR libstdc++/109340
1792         * include/std/expected (expected::transform): Use
1793         std::remove_cv_t instead of std::remove_cvref_t.
1794         (expected::transform_error): Likewise.
1795         (expected<cv void, E>::transform): Likewise.
1796         (expected<cv void, E>::transform_error): Likewise.
1797         * include/std/optional (transform): Use std::remove_cv_t.
1798         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
1799
1800 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1801
1802         * include/std/optional (optional): Adjust static assertion to
1803         reject arrays and functions as well as references.
1804         * testsuite/20_util/optional/requirements_neg.cc: New test.
1805
1806 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1807
1808         PR libstdc++/103387
1809         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
1810         std::use_facet instead of cached _M_num_get facet.
1811         (istream::operator>>(short&)): Likewise.
1812         (istream::operator>>(int&)): Likewise.
1813         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
1814         std::use_facet instead of cached _M_num_put facet.
1815
1816 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1817
1818         * include/bits/char_traits.h (char_traits::copy): Return without
1819         using memcpy if n==0.
1820         (char_traits::assign): Likewise for memset.
1821
1822 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1823
1824         PR libstdc++/109299
1825         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
1826         hint for compiler that local strings fit in the local buffer.
1827
1828 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1829
1830         PR libstdc++/109288
1831         * include/std/chrono (__detail::__get_leap_second_info): Update
1832         expiry date of hardcoded leapseconds list.
1833         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
1834         Likewise.
1835         * src/c++20/tzdata.zi: Import new file from 2023a release.
1836         * testsuite/std/time/time_zone/get_info_local.cc: Only check
1837         transitions for Egypt up to 2014.
1838
1839 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1840
1841         * include/experimental/bits/simd.h (is_simd_flag_type): New.
1842         (_IsSimdFlagType): New.
1843         (copy_from, copy_to, load ctors): Constrain _Flags using
1844         _IsSimdFlagType.
1845
1846 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1847
1848         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
1849         _Base::_S_divides if the optimized _S_divides function is hidden
1850         via the preprocessor.
1851
1852 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
1853
1854         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
1855         warning if size_t is not unsigned long.
1856
1857 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1858
1859         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
1860         Add overload, as per LWG 3893.
1861         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
1862         Check assignment from nullptr.
1863
1864 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1865
1866         * include/std/format (formatter<const charT[N], charT>): Do not
1867         define partial speclialization, as per LWG 3833.
1868         * testsuite/std/format/formatter/requirements.cc: Check it.
1869
1870 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1871
1872         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
1873         as per LWG 3792.
1874         * testsuite/20_util/exchange/constexpr.cc: Check for it.
1875
1876 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1877
1878         * include/std/version (__cpp_lib_format): Define.
1879         * testsuite/std/format/functions/format.cc: Check it.
1880
1881 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1882
1883         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
1884         Pass rvalues to the callback, as now allowed by LWG 3645.
1885         Enforce preconditions on the return value.
1886         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
1887         Adjust.
1888
1889 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1890
1891         * include/std/format: Add a comment noting that the resolution
1892         of LWG 3720 has been applied..
1893
1894 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1895
1896         * include/bits/regex.h (match_results): Add allocator-extended
1897         copy and move constructors, as per LWG 2195.
1898         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
1899
1900 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1901
1902         * include/bits/stream_iterator.h (istream_iterator): Add
1903         constexpr to copy constructor, as per LWG 3600.
1904         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
1905         Check copy construction.
1906
1907 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1908
1909         * include/experimental/bits/simd_x86.h
1910         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
1911         with __RECIPROCAL_MATH__.
1912
1913 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1914
1915         * include/experimental/bits/simd_detail.h: Don't define
1916         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
1917         * include/experimental/bits/simd_x86.h (_S_divides): Remove
1918         check for __clang__.
1919
1920 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1921
1922         * include/experimental/bits/simd_detail.h: Don't declare the
1923         simd API as constexpr with Clang.
1924         * include/experimental/bits/simd_x86.h (__movm): New.
1925         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
1926         and ?:.
1927         (_SimdImplX86::_S_masked_unary): Clang does not implement the
1928         same builtins. Implement the function using __movm, ?:, and -
1929         operators on vector_size types instead.
1930
1931 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1932
1933         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
1934         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
1935
1936 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1937
1938         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
1939         formatting.
1940
1941 2023-03-20  Marek Polacek  <polacek@redhat.com>
1942
1943         PR c++/109159
1944         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
1945         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
1946         * testsuite/23_containers/span/explicit.cc: Likewise.
1947
1948 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1949
1950         PR libstdc++/109182
1951         * include/std/expected (expected<void>::expected(in_place_t)):
1952         Remove template-head.
1953
1954 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
1955
1956         PR libstdc++/109165
1957         * testsuite/18_support/coroutines/hash.cc: Use const object
1958         in second call.
1959
1960 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
1961
1962         PR libstdc++/109165
1963         * include/std/coroutine (hash<>::operator()): Add const.
1964         * testsuite/18_support/coroutines/hash.cc: New test.
1965
1966 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1967
1968         PR libstdc++/109111
1969         * include/std/ranges (repeat_view): Remove redundant parentheses
1970         in requires-clause.
1971         (repeat_view::_Iterator): Correct the requires-clause.
1972
1973 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1974
1975         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
1976         Define.
1977         (__cpp_lib_move_iterator_concept): Define for C++20.
1978         (move_iterator::iterator_concept): Strengthen as per P2520R0.
1979         * include/std/version (__cpp_lib_move_iterator_concept): Define
1980         for C++20.
1981         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
1982
1983 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1984
1985         * include/bits/ranges_util.h (view_interface::empty): Add
1986         preferred overloads that use ranges::size when the range is
1987         sized as per LWG 3715.
1988         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
1989
1990 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1991
1992         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
1993         Only define for C++17 and later.
1994
1995 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1996
1997         * src/Makefile.am: Add comment about linker script fragments.
1998         * src/Makefile.in: Regenerate.
1999
2000 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
2001
2002         PR libstdc++/62196
2003         * include/bits/mask_array.h (mask_array): Add assertions to
2004         assignment operators.
2005         * include/std/valarray (valarray::operator[](valarray<bool>)):
2006         Add assertions.
2007         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
2008         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
2009         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
2010         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
2011         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
2012         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
2013         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
2014         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
2015         * testsuite/26_numerics/valarray/mask.cc: New test.
2016
2017 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
2018
2019         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
2020         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
2021
2022 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
2023
2024         * doc/Makefile.am: Add comment referring to documentation.
2025         * doc/Makefile.in: Regenerate.
2026
2027 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
2028
2029         * doc/html/*: Regenerate.
2030
2031 2023-03-13  Jonny Grant  <jg@jguk.org>
2032
2033         * doc/xml/faq.xml: Update copyright year.
2034
2035 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
2036
2037         * include/bits/allocator.h: Fix typo in comment.
2038
2039 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
2040
2041         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
2042         if it isn't mangled as DF16b but u6__bf16.
2043
2044 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
2045
2046         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
2047         to https.
2048         * doc/html/manual/documentation_hacking.html: Regenerate.
2049
2050 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
2051
2052         PR libstdc++/109064
2053         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
2054         Remove self-recursion in __init__. Add missing _supports.
2055         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
2056         and unique().
2057
2058 2023-03-09  Patrick Palka  <ppalka@redhat.com>
2059
2060         * include/std/ranges
2061         (cartesian_product_view::_Iterator::_Iterator): Remove
2062         constraint on default constructor as per LWG 3849.
2063         (cartesian_product_view::_Iterator::_M_prev): Adjust position
2064         of _Nm > 0 test as per LWG 3820.
2065         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
2066         checking only on sized cartesian products.
2067         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
2068
2069 2023-03-09  Patrick Palka  <ppalka@redhat.com>
2070
2071         PR libstdc++/109024
2072         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
2073         LWG 3796.
2074         (repeat_view::_M_pred): Likewise.
2075         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
2076         * testsuite/std/ranges/repeat/1.cc (test05): New test.
2077
2078 2023-03-09  Patrick Palka  <ppalka@redhat.com>
2079
2080         PR libstdc++/108362
2081         * include/std/ranges (__detail::__can_single_view): New concept.
2082         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
2083         end of the function declarator.
2084         (__detail::__can_iota_view): New concept.
2085         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
2086         end of the function declarator.
2087         (__detail::__can_istream_view): New concept.
2088         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
2089         end of the function declarator.
2090         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
2091         * testsuite/std/ranges/istream_view.cc (test08): New test.
2092         * testsuite/std/ranges/single_view.cc (test07): New test.
2093
2094 2023-03-09  Patrick Palka  <ppalka@redhat.com>
2095
2096         PR libstdc++/107572
2097         * include/std/ranges (cartesian_product_view::end): When
2098         building the tuple of iterators, avoid calling ranges::begin on
2099         the first range if __empty_tail is false.
2100         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
2101
2102 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
2103
2104         PR libstdc++/108882
2105         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
2106         patterns.
2107
2108 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
2109
2110         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
2111         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
2112         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
2113         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
2114         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
2115
2116 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
2117
2118         PR libstdc++/108882
2119         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
2120         not match symbols in namespace std::__gnu_cxx11_ieee128.
2121         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
2122         std::__gnu_cxx11_ieee128::money_{get,put}.
2123
2124 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
2125
2126         * libsupc++/eh_personality.cc: Fix spelling in comment.
2127
2128 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
2129
2130         * testsuite/30_threads/async/async.cc (test04): Initialize
2131         steady_start, renamed from steady_begin, next to slow_start.
2132         Increase tolerance for final wait.
2133
2134 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
2135
2136         * testsuite/libstdc++-prettyprinters/80276.cc: Add
2137         std::string to debug info.
2138         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
2139
2140 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
2141
2142         PR libstdc++/104852
2143         PR libstdc++/95989
2144         PR libstdc++/52590
2145         * include/bits/std_thread.h (thread::_M_thread_deps): New
2146         static implicitly-inline member function.
2147         (std::thread template ctor): Pass it to _M_start_thread.
2148         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
2149         parameter, force it live on entry.
2150
2151 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2152
2153         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
2154         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
2155         Likewise.
2156         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
2157         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
2158         Likewise.
2159
2160 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
2161
2162         * include/bits/cow_string.h: Fix typo in comment.
2163
2164 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
2165
2166         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
2167         current time zone cannot be determined.
2168         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
2169         HAVE_TZDB macro and test all members unconditionally.
2170
2171 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
2172
2173         PR libstdc++/108952
2174         * include/bits/uses_allocator_args.h
2175         (uses_allocator_construction_args): Implement LWG 3527.
2176         * testsuite/20_util/pair/astuple/get-2.cc: New test.
2177         * testsuite/20_util/scoped_allocator/108952.cc: New test.
2178         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
2179
2180 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
2181
2182         PR libstdc++/108846
2183         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
2184         Add __assign_one static member function.
2185         (__copy_move<true, false, RA>): Likewise.
2186         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
2187         value.
2188         (__copy_move_backward<IsMove, true, RA>): Likewise.
2189         * testsuite/25_algorithms/copy/108846.cc: New test.
2190         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
2191         * testsuite/25_algorithms/copy_n/108846.cc: New test.
2192         * testsuite/25_algorithms/move/108846.cc: New test.
2193         * testsuite/25_algorithms/move_backward/108846.cc: New test.
2194
2195 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
2196
2197         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
2198         attributes.
2199
2200 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
2201
2202         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
2203         caveat to comment.
2204         * include/bits/basic_string.h (resize_and_overwrite): Add
2205         doxygen comment.
2206
2207 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
2208
2209         * include/experimental/bits/simd.h: Line breaks and indenting
2210         fixed to follow the libstdc++ standard.
2211         * include/experimental/bits/simd_builtin.h: Likewise.
2212         * include/experimental/bits/simd_fixed_size.h: Likewise.
2213         * include/experimental/bits/simd_neon.h: Likewise.
2214         * include/experimental/bits/simd_ppc.h: Likewise.
2215         * include/experimental/bits/simd_scalar.h: Likewise.
2216         * include/experimental/bits/simd_x86.h: Likewise.
2217
2218 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
2219
2220         PR libstdc++/108030
2221         * include/experimental/bits/simd_fixed_size.h
2222         (_SimdImplFixedSize::_S_broadcast): Replace inline with
2223         _GLIBCXX_SIMD_INTRINSIC.
2224         (_SimdImplFixedSize::_S_generate): Likewise.
2225         (_SimdImplFixedSize::_S_load): Likewise.
2226         (_SimdImplFixedSize::_S_masked_load): Likewise.
2227         (_SimdImplFixedSize::_S_store): Likewise.
2228         (_SimdImplFixedSize::_S_masked_store): Likewise.
2229         (_SimdImplFixedSize::_S_min): Likewise.
2230         (_SimdImplFixedSize::_S_max): Likewise.
2231         (_SimdImplFixedSize::_S_complement): Likewise.
2232         (_SimdImplFixedSize::_S_unary_minus): Likewise.
2233         (_SimdImplFixedSize::_S_plus): Likewise.
2234         (_SimdImplFixedSize::_S_minus): Likewise.
2235         (_SimdImplFixedSize::_S_multiplies): Likewise.
2236         (_SimdImplFixedSize::_S_divides): Likewise.
2237         (_SimdImplFixedSize::_S_modulus): Likewise.
2238         (_SimdImplFixedSize::_S_bit_and): Likewise.
2239         (_SimdImplFixedSize::_S_bit_or): Likewise.
2240         (_SimdImplFixedSize::_S_bit_xor): Likewise.
2241         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
2242         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
2243         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
2244         explicit about not always-inline, yet).
2245         (_SimdImplFixedSize::_S_isinf): Likewise.
2246         (_SimdImplFixedSize::_S_isfinite): Likewise.
2247         (_SimdImplFixedSize::_S_isnan): Likewise.
2248         (_SimdImplFixedSize::_S_isnormal): Likewise.
2249         (_SimdImplFixedSize::_S_signbit): Likewise.
2250
2251 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
2252
2253         PR libstdc++/108856
2254         * include/experimental/bits/simd_builtin.h
2255         (_SimdImplBuiltin::_S_masked_unary): More efficient
2256         implementation of masked inc-/decrement for integers and floats
2257         without AVX2.
2258         * include/experimental/bits/simd_x86.h
2259         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
2260         builtins for masked inc-/decrement.
2261
2262 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2263
2264         * include/experimental/executor (executor): Constrain template
2265         constructors.
2266
2267 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2268
2269         * include/experimental/internet (basic_endpoint): Add missing
2270         constexpr to comparison operators.
2271         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
2272
2273 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2274
2275         * include/experimental/internet (network_v4::netmask()): Avoid
2276         undefined shift.
2277         (network_v4::broadcast()): Optimize and fix for targets with
2278         uint_least32_t wider than 32 bits.
2279         (network_v4::to_string(const Allocator&)): Fix for custom
2280         allocators and optimize using to_chars.
2281         (operator==(const network_v4&, const network_v4&)): Add missing
2282         constexpr.
2283         (operator==(const network_v6&, const network_v6&)): Likewise.
2284         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
2285         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
2286
2287 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2288
2289         * include/experimental/internet (address_4(const bytes_type&)):
2290         Use __builtin_bit_cast if available, otherwise convert to
2291         network byte order.
2292         (address_v4::to_bytes()): Likewise, but convert from network
2293         byte order.
2294         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
2295         incorrect tests. Check for constexpr too.
2296         * testsuite/experimental/net/internet/address/v4/creation.cc:
2297         Likewise.
2298         * testsuite/experimental/net/internet/address/v4/members.cc:
2299         Check that bytes_type is a standard-layout type.
2300
2301 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2302
2303         * include/experimental/internet (address_v4::to_string):
2304         Optimize.
2305         * testsuite/experimental/net/internet/address/v4/members.cc:
2306         Check more addresses.
2307
2308 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2309
2310         * include/ext/aligned_buffer.h (__aligned_buffer): Add
2311         diagnostic pragmas.
2312
2313 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
2314
2315         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
2316         before dg-do.
2317
2318 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2319
2320         * testsuite/experimental/simd/tests/reductions.cc: Introduce
2321         max_distance as the type-dependent max error.
2322
2323 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2324
2325         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
2326         int. The actual range of these indexes is very small.
2327
2328 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2329
2330         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
2331         (_S_bit_shift_right): Declare constexpr. The implementation was
2332         already expecting constexpr evaluation.
2333
2334 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2335
2336         PR libstdc++/108030
2337         * include/experimental/bits/simd_detail.h
2338         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
2339         __clang__.
2340
2341 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
2342
2343         PR libstdc++/108030
2344         * include/experimental/bits/simd.h (__vector_broadcast):
2345         Implement via __vector_broadcast_impl instead of
2346         __call_with_n_evaluations + 2 lambdas.
2347         (__vector_broadcast_impl): New.
2348
2349 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2350
2351         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
2352         Avoid destruction of the mutex pool.
2353
2354 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2355
2356         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
2357         on vxworks.
2358         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
2359         Likewise.
2360
2361 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2362
2363         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
2364         kernel mode.
2365
2366 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
2367
2368         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
2369
2370 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
2371
2372         * include/experimental/bits/simd.h (__extract_part, split):
2373         Use reserved name for template parameter.
2374
2375 2023-02-20  Andreas Schwab  <schwab@suse.de>
2376
2377         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
2378
2379 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
2380
2381         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
2382         * doc/html/faq.html: Regenerate.
2383
2384 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2385
2386         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
2387         between scalars requires the __bit_cast helper function instead
2388         of simd_bit_cast.
2389
2390 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2391
2392         * include/experimental/bits/simd_x86.h
2393         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
2394         (_SimdImplX86::_S_less_equal): Do not call
2395         __builtin_is_constant_evaluated in constexpr-if.
2396
2397 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2398
2399         * testsuite/experimental/simd/tests/bits/verify.h
2400         (verify::verify): Use %zx for size_t in format string.
2401
2402 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2403
2404         * testsuite/experimental/simd/generate_makefile.sh: Generate and
2405         pre-compile pch.h, which includes all headers that do not depend
2406         on command-line macros.
2407         * testsuite/experimental/simd/tests/bits/main.h: New file.
2408         (iterate_abis, main): Moved from verify.h.
2409         * testsuite/experimental/simd/tests/bits/verify.h
2410         (iterate_abis, main): Moved to main.h.
2411         * testsuite/experimental/simd/tests/bits/conversions.h: Add
2412         include guard.
2413         (genHalfBits): Simplify.
2414         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
2415         guard.
2416         (make_alternating_mask): Moved from mask_loadstore.
2417         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
2418         include guard.
2419         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
2420         * testsuite/experimental/simd/tests/mask_loadstore.cc
2421         (make_mask, make_alternating_mask): Removed.
2422         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
2423         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
2424         Removed.
2425         * testsuite/experimental/simd/tests/abs.cc: Only include
2426         bits/main.h.
2427         Ditto.
2428         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
2429         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
2430         * testsuite/experimental/simd/tests/casts.cc: Ditto.
2431         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
2432         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
2433         * testsuite/experimental/simd/tests/generator.cc: Ditto.
2434         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
2435         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
2436         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
2437         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
2438         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
2439         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
2440         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
2441         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
2442         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
2443         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
2444         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
2445         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
2446         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
2447         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
2448         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
2449         * testsuite/experimental/simd/tests/simd.cc: Ditto.
2450         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
2451         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
2452         * testsuite/experimental/simd/tests/splits.cc: Ditto.
2453         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
2454         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
2455         * testsuite/experimental/simd/tests/where.cc: Ditto.
2456
2457 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2458
2459         * testsuite/experimental/simd/README.md: Document the timeout
2460         and timeout-factor directives. Minor typo fixed.
2461
2462 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2463
2464         PR libstdc++/108030
2465         * include/experimental/bits/simd_detail.h: Define
2466         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
2467         * include/experimental/bits/simd.h: Annotate lambdas with
2468         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
2469         * include/experimental/bits/simd_builtin.h: Ditto.
2470         * include/experimental/bits/simd_converter.h: Ditto.
2471         * include/experimental/bits/simd_fixed_size.h: Ditto.
2472         * include/experimental/bits/simd_math.h: Ditto.
2473         * include/experimental/bits/simd_neon.h: Ditto.
2474         * include/experimental/bits/simd_x86.h: Ditto.
2475
2476 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2477
2478         * include/experimental/bits/simd.h
2479         (_SimdWrapper::_M_is_constprop_none_of)
2480         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
2481         computed result still satisfies __builtin_constant_p.
2482
2483 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2484
2485         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
2486         ellipsis character.
2487
2488 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2489
2490         * include/Makefile.am: Add new header.
2491         * include/Makefile.in: Regenerate.
2492         * include/experimental/synchronized_value: New file.
2493         * testsuite/experimental/synchronized_value.cc: New test.
2494
2495 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2496
2497         * include/experimental/optional: Fix header name in comment.
2498
2499 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2500
2501         * include/std/format (__format::_Arg_store): New class template.
2502         (basic_format_args): Remove nested type _Store and add deduction
2503         guide from _Arg_store.
2504         (basic_format_arg, make_format_args): Adjust.
2505         * testsuite/std/format/arguments/lwg3810.cc: New test.
2506
2507 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2508
2509         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
2510         constraints to constructors and add deleted overloads for the
2511         dangling cases, as per P2255R2.
2512         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
2513         make dangling cases ill-formed.
2514         * testsuite/20_util/pair/dangling_ref.cc: New test.
2515
2516 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2517
2518         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
2519
2520 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2521
2522         * include/ext/throw_allocator.h: Use reserved names for
2523         parameters.
2524
2525 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2526
2527         * testsuite/17_intro/names_pstl.cc: Add space after effective
2528         target name.
2529
2530 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2531
2532         * include/pstl/algorithm_fwd.h (__pattern_search_n)
2533         (__brick_unique_copy, __brick_adjacent_find)
2534         (__brick_generate_n, __pattern_generate_n): Use reserved names
2535         for parameters.
2536         * include/pstl/algorithm_impl.h (__brick_unique_copy)
2537         (__pattern_reverse, __brick_generate_n): Likewise.
2538         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
2539         (__prefer_parallel_tag): Likewise.
2540         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
2541         * include/pstl/glue_numeric_defs.h (adjacent_difference):
2542         Likewise.
2543         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
2544         Likewise.
2545         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
2546         * include/pstl/unseq_backend_simd.h (_Combiner)
2547         (__simd_min_element, __simd_minmax_element): Likewise.
2548         * testsuite/17_intro/names_pstl.cc: New test.
2549
2550 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2551
2552         * include/bits/fs_ops.h (create_directory): Use reserved name
2553         for parameter.
2554         * include/bits/ranges_algo.h (__contains_subrange_fn):
2555         Likewise.
2556         * include/bits/regex_automaton.h (_State_base::_M_print):
2557         Likewise.
2558         * include/bits/regex_automaton.tcc(_State_base::_M_print):
2559         Likewise.
2560         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
2561         * include/experimental/bits/fs_ops.h (create_directory):
2562         Likewise.
2563         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
2564         (recursive_timed_mutex:_M_clocklock): Likewise.
2565         * include/std/tuple (basic_common_reference): Likewise.
2566         * libsupc++/cxxabi_init_exception.h
2567         (__cxa_init_primary_exception): Likewise.
2568         * testsuite/17_intro/names.cc: Add checks.
2569
2570 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
2571
2572         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
2573         to www.open-std.org and https.
2574         * doc/html/manual/status.html: Regenerate.
2575
2576 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
2577
2578         PR libstdc++/103934
2579         * include/std/atomic (atomic_flag_wait): Add.
2580         (atomic_flag_wait_explicit): Add.
2581         (atomic_flag_notify): Add.
2582         (atomic_flag_notify_explicit): Add.
2583         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
2584         Add test case to cover missing atomic_flag free functions.
2585
2586 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
2587
2588         PR libstdc++/103934
2589         * include/std/atomic (atomic_flag_test): Add.
2590         (atomic_flag_test_explicit): Add.
2591         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
2592         test case to cover missing atomic_flag free functions.
2593         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
2594         Likewise.
2595
2596 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
2597
2598         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
2599         "The Component Object Model" reference.
2600         * doc/html/manual/policy_data_structures.html: Regenerate.
2601
2602 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
2603
2604         * doc/xml/manual/containers.xml: Tweak a link to N1780
2605         (C++ standard).
2606         * doc/html/manual/associative.html: Regenerate.
2607
2608 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
2609
2610         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
2611         * doc/html/manual/facets.html: Regenerate.
2612
2613 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
2614
2615         * doc/xml/manual/policy_data_structures_biblio.xml: Update
2616         link to "Worst-case efficient priority queues".
2617         * doc/html/manual/policy_data_structures.html: Regenerate.
2618
2619 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2620
2621         * doc/xml/manual/using.xml: Document newly-freestanding
2622         headers and the effect of the -ffreestanding flag.
2623         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
2624         completed.
2625         * doc/xml/manual/configure.xml: Document that hosted installs
2626         respect __STDC_HOSTED__.
2627         * doc/xml/manual/test.xml: Document how to run tests in
2628         freestanding mode.
2629         * doc/html/*: Regenerate.
2630
2631 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2632
2633         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
2634         (__find_last_if_fn): Likewise.
2635
2636 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2637
2638         * include/std/type_traits: Add diagnostic pragmas around
2639         references to deprecated std::aligned_storage and
2640         std::aligned_union traits.
2641         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
2642         Add dg-warning for et c++23.
2643         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
2644         Likewise.
2645         * testsuite/20_util/aligned_storage/value.cc: Likewise.
2646         * testsuite/20_util/aligned_union/1.cc: Likewise.
2647         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
2648         Likewise.
2649
2650 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2651
2652         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
2653         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
2654         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
2655         * include/std/type_traits (aligned_storage, aligned_union)
2656         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
2657         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
2658         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
2659
2660 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2661
2662         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
2663         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
2664         consistent with other 'deprecated' macros.
2665         * include/std/type_traits (is_pod, is_pod_v): Use
2666         _GLIBCXX20_DEPRECATED_SUGGEST instead.
2667
2668 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2669
2670         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
2671         * Makefile.in: Regenerate.
2672         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
2673         There's no history to be compatible with.
2674         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
2675         source files from the build.
2676         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2677         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2678         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2679         * src/Makefile.in: Regenerate.
2680         * src/c++11/Makefile.in: Regenerate.
2681         * src/c++17/Makefile.in: Regenerate.
2682         * src/c++20/Makefile.in: Regenerate.
2683         * src/c++98/Makefile.in: Regenerate.
2684
2685 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2686
2687         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
2688         filesystem, libbacktrace and experimental.
2689         * src/Makefile.in: Regenerate.
2690
2691 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
2692
2693         PR libstdc++/108672
2694         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
2695         instead of int32_t.
2696
2697 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
2698
2699         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
2700         * doc/html/manual/documentation_hacking.html: Regenerate.
2701
2702 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
2703
2704         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
2705         storage to the move-from instance when allocators are equal.
2706         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
2707         New test case.
2708
2709 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
2710
2711         * config/os/gnu-linux/os_defines.h [!__linux__]
2712         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
2713
2714 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2715
2716         * include/bits/ranges_algo.h (__find_last_fn, find_last):
2717         Define.
2718         (__find_last_if_fn, find_last_if): Define.
2719         (__find_last_if_not_fn, find_last_if_not): Define.
2720         * testsuite/25_algorithms/find_last/1.cc: New test.
2721         * testsuite/25_algorithms/find_last_if/1.cc: New test.
2722         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
2723
2724 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2725
2726         * include/bits/ranges_algo.h (out_value_result): Define.
2727         (iota_result): Define.
2728         (__iota_fn, iota): Define.
2729         * testsuite/25_algorithms/iota/1.cc: New test.
2730
2731 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2732
2733         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
2734         (__contains_subrange_fn, contains_subrange): Define.
2735         * testsuite/25_algorithms/contains/1.cc: New test.
2736         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
2737
2738 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2739
2740         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
2741         * doc/html/manual/abi.html: Regenerate.
2742
2743 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2744
2745         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
2746         errc::function_not_supported instead of errc::not_supported.
2747
2748 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2749
2750         * include/std/sstream  (basic_stringbuf::view): Define for old
2751         std::string ABI.
2752         (basic_istringstream::view, basic_0stringstream::view)
2753         (basic_stringstream::view): Likewise.
2754         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
2755         { dg-require-effective-target cxx11_abi }.
2756         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
2757         Likewise.
2758         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
2759         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
2760         Likewise.
2761         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
2762         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
2763         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
2764         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
2765         Likewise.
2766
2767 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2768
2769         PR libstdc++/108636
2770         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
2771         conversion operators for directory iterator comparisons with
2772         std::default_sentinel_t.
2773         * include/bits/fs_path.h (path::path(string_view, _Type))
2774         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
2775         definitions to ...
2776         * src/c++17/fs_path.cc: ... here.
2777         * testsuite/27_io/filesystem/path/108636.cc: New test.
2778
2779 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2780
2781         * include/std/variant (variant::operator=): Implement resolution
2782         of LWG 3585.
2783         * testsuite/20_util/variant/lwg3585.cc: New test.
2784
2785 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2786
2787         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
2788         link to https.
2789         * doc/html/manual/using_exceptions.html: Regenerate.
2790
2791 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2792
2793         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
2794         * doc/html/manual/debug.html: Regenerate.
2795
2796 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2797
2798         * src/c++11/random.cc (random_device::_M_fini): Do not try to
2799         close the file handle if the target doesn't support the
2800         /dev/random and /dev/urandom files.
2801
2802 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2803
2804         * config/os/generic/error_constants.h (errc::value_too_large)
2805         [__AVR__]: Define.
2806         * src/c++11/system_error.cc
2807         (system_category::default_error_condition) [__AVR__]: Only match
2808         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
2809         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
2810         for ENOENT etc. in switch.
2811         (fs::remove_all) [__AVR__]: Likewise.
2812         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
2813         close etc.
2814
2815 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2816
2817         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
2818         embed_zoneinfo=no
2819         * configure: Regenerate.
2820
2821 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
2822
2823         PR testsuite/108632
2824         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
2825         struct at end of S0.
2826
2827 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
2828
2829         * doc/xml/manual/shared_ptr.xml: Move links from both
2830         http://open-std.org and http://www.open-std.org to
2831         https://www.open-std.org.
2832         * doc/html/manual/memory.html: Regenerate.
2833
2834 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2835
2836         * doc/xml/manual/appendix_contributing.xml: Adjust link to
2837         ISO C++ standard at ANSI.
2838         Move link to www.open-std.org to https.
2839         * doc/html/manual/appendix_contributing.html: Regenerate.
2840
2841 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2842
2843         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
2844         links to https.
2845         * doc/html/manual/documentation_hacking.html: Regenerate.
2846
2847 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2848
2849         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
2850         * doc/html/manual/abi.html: Regenerate.
2851
2852 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
2853
2854         PR libstdc++/108568
2855         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
2856         include features.h if present and then check __GLIBC__ and
2857         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
2858         __GLIBC_PREREQ which isn't defined yet.
2859
2860 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2861
2862         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
2863         string literal.
2864
2865 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2866
2867         PR libstdc++/108554
2868         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
2869
2870 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2871
2872         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
2873         rules named "+" for compatibility with older tzdata.zi files.
2874
2875 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2876
2877         PR libstdc++/108554
2878         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
2879         nonnull attribute.
2880         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
2881         attributes.
2882         * testsuite/23_containers/map/modifiers/108554.cc: New test.
2883
2884 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2885
2886         PR libstdc++/108530
2887         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
2888         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
2889
2890 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
2891
2892         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
2893         use https.
2894         * doc/html/manual/bugs.html: Regenerate.
2895
2896 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2897
2898         PR libstdc++/108530
2899         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
2900         /etc/sysconfig/clock.
2901
2902 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2903
2904         PR libstdc++/102301
2905         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
2906         std::make_reverse_iterator.
2907         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
2908         (make_from_tuple): Add static assertion from P2255 to diagnose
2909         dangling references.
2910         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
2911         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
2912
2913 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
2914
2915         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
2916         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
2917         (_Safe_iterator::operator++(int)): Use latter.
2918         (_Safe_iterator::operator--(int)): Likewise.
2919         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
2920         check.
2921         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
2922         New.
2923         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
2924         (_Safe_local_iterator::operator++(int)): Use latter.
2925         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
2926         entry associated to the array entry.
2927
2928 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2929
2930         * include/bits/fs_path.h (u8path): Add deprecated attribute.
2931         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
2932         -Wno-deprecated-declarations for C++20 and later.
2933         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
2934         Likewise.
2935         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
2936         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
2937         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
2938
2939 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2940
2941         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
2942         Always call _M_fini and _M_getentropy.
2943
2944 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
2945
2946         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
2947         to www.open-std.org to use https.
2948         (COM: Component Model Object Technologies): Rename from...
2949         (The Component Object Model): ...to.
2950         * doc/html/manual/policy_data_structures.html: Regenerate.
2951
2952 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
2953
2954         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
2955         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
2956         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
2957
2958 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
2959
2960         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
2961         of $host. Fix check for file being present during native build.
2962         * configure: Regenerate.
2963
2964 2023-01-17  Martin Liska  <mliska@suse.cz>
2965
2966         * src/libbacktrace/Makefile.in: Regenerate.
2967
2968 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2969
2970         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
2971
2972 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2973
2974         PR libstdc++/108413
2975         * include/c_compatibility/stdatomic.h: Change copyright line to
2976         be consistent with other headers contributed under DCO terms.
2977         * include/std/expected: Add full stop to copyright line.
2978         * src/c++20/tzdb.cc: Likewise.
2979
2980 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
2981
2982         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
2983         https.
2984         * doc/xml/manual/status_cxx2017.xml: Ditto.
2985         * doc/xml/manual/status_cxx2020.xml: Ditto.
2986         * doc/xml/manual/status_cxx2023.xml: Ditto.
2987         * doc/html/manual/status.html: Regenerate.
2988
2989 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2990
2991         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
2992         and fail gracefully if defining the weak symbol doesn't work.
2993
2994 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
2995
2996         PR libstdc++/108288
2997         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
2998         fix to other iterator category.
2999         (_Safe_iterator<>::operator--(int)): Likewise.
3000         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
3001         Fix deadlock.
3002         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
3003         (invalid_local_iterator_post_increment): New.
3004         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
3005         New test.
3006         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
3007         New test.
3008
3009 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
3010
3011         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
3012         dg-options.
3013
3014 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
3015
3016         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
3017
3018 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
3019
3020         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
3021         windows.h. Add pecoff as FORMAT_FILE.
3022         * config.h.in: Regenerate.
3023         * configure: Regenerate.
3024         * src/libbacktrace/Makefile.am: Regenerate.
3025         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
3026
3027 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
3028
3029         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
3030         raw __name if __cxa_demangle could not demangle it.
3031
3032 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
3033
3034         PR libstdc++/108409
3035         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
3036         variable.
3037
3038 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
3039
3040         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
3041         loading tzdb.
3042         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
3043         effective target.
3044         * testsuite/std/time/tzdb_list/1.cc: Likewise.
3045
3046 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
3047
3048         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
3049         --with-libstdcxx-zoneinfo-dir configure option with
3050         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
3051         a directory.
3052         * config.h.in: Regenerate.
3053         * configure: Regenerate.
3054         * doc/xml/manual/configure.xml: Document configure option.
3055         * doc/html/manual/configure.html: Regenerate.
3056         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
3057         * src/c++20/Makefile.in: Regenerate.
3058         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
3059         null pointer if no directory is configured.
3060         (zoneinfo_dir): Replace with ...
3061         (zoneinfo_file): New function.
3062         (tzdata_stream): New istream class.
3063         (remote_version, reload_tzdb): Use tzdata_stream.
3064         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
3065         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
3066         tzdata.zi file in default location.
3067         * src/c++20/tzdata.zi: New file.
3068
3069 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
3070
3071         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
3072         * testsuite/std/time/month_day/io.cc: New test.
3073         * testsuite/std/time/month_day_last/io.cc: New test.
3074         * testsuite/std/time/month_weekday/io.cc: New test.
3075         * testsuite/std/time/month_weekday_last/io.cc: New test.
3076         * testsuite/std/time/weekday_indexed/io.cc: New test.
3077         * testsuite/std/time/weekday_last/io.cc: New test.
3078         * testsuite/std/time/year_month/io.cc: New test.
3079         * testsuite/std/time/year_month_day_last/io.cc: New test.
3080         * testsuite/std/time/year_month_weekday/io.cc: New test.
3081         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
3082
3083 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
3084
3085         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
3086         specifications.
3087         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
3088         export.
3089
3090 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
3091
3092         * include/bits/std_mutex.h: Include <errno.h>.
3093
3094 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
3095
3096         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
3097         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
3098         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
3099         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
3100         std::make_unique with a freestanding-compatible wrapper around
3101         unique_ptr.
3102         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
3103         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
3104         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
3105         Ditto.
3106         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
3107         of __cpp_lib_ranges in !HOSTED.
3108
3109 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
3110
3111         * include/Makefile.am: Install bits/char_traits.h,
3112         std/string_view
3113         * include/Makefile.in: Regenerate.
3114         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
3115         mbstate-only bits behind appropriate #ifs.
3116         * include/std/string_view: Gate <iostream> functionality behind
3117         HOSTED.
3118         * include/std/version: Enable __cpp_lib_constexpr_string_view
3119         and __cpp_lib_starts_ends_with in !HOSTED.
3120         * include/std/ranges: Re-enable __is_basic_string_view on
3121         freestanding, include <string_view> directly.
3122         * include/precompiled/stdc++.h: Include <string_view> when
3123         !HOSTED too.
3124         * testsuite/20_util/function_objects/searchers.cc: Skip testing
3125         boyer_moore searchers on freestanding
3126         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
3127         <string>-related tests behind __STDC_HOSTED__.
3128         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
3129         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
3130         unused <stdexcept> include.
3131         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
3132         unused <vector> include.
3133         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
3134         Guard <string> related testing behind __STDC_HOSTED__.
3135         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
3136         Guard <stdexcept> related tests behind __STDC_HOSTED__.
3137         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
3138         Ditto.
3139         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
3140         Guard <stdexcept> tests behind __STDC_HOSTED__.
3141         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
3142         Enable test on freestanding, guard <stdexcept> bits behind
3143         __STDC_HOSTED__.
3144         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
3145         Guard <stdexcept> bits behind __STDC_HOSTED__.
3146         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
3147         Ditto.
3148
3149 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
3150
3151         PR libstdc++/86419
3152         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
3153         errors in incomplete multibyte sequences.
3154         (utf16_in): Remove surrogates parameter. Fix conditions for
3155         returning partial.
3156         (utf16_out): Fix condition for returning partial.
3157         (ucs2_in): Do not pass surrogates argument to utf16_in.
3158         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
3159         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
3160         tests.
3161         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
3162         test.
3163
3164 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
3165
3166         PR libstdc++/108331
3167         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
3168         __GTHREAD_LEGACY_MUTEX_T if defined.
3169
3170 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
3171
3172         PR libstdc++/108327
3173         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
3174         Export __try_use_facet specializations for facets in namespace
3175         __gnu_cxx_ldbl128.
3176         * config/os/gnu-linux/ldbl-ieee128-extra.ver
3177         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
3178         __gnu_cxx_ieee128.
3179         * testsuite/util/testsuite_abi.cc: Add to lists of known and
3180         latest versions.
3181
3182 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
3183
3184         * include/bits/std_mutex.h: Remove <system_error> include.
3185         * include/std/condition_variable: Add <bits/error_constants.h>
3186         include.
3187         * include/std/mutex: Likewise.
3188         * include/std/shared_mutex: Likewise.
3189
3190 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
3191
3192         PR libstdc++/77691
3193         * include/experimental/memory_resource
3194         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
3195         (do_allocate, do_deallocate): Check it.
3196         * testsuite/experimental/memory_resource/new_delete_resource.cc:
3197         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
3198
3199 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
3200
3201         * doc/xml/manual/abi.xml: Add latest library versions.
3202         * doc/html/manual/abi.html: Regenerate.
3203
3204 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
3205
3206         PR libstdc++/107189
3207         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
3208         unused _Alloc_node instance.
3209
3210 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
3211
3212         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
3213         Define as unsigned long if always lock-free, and unsigned int
3214         otherwise.
3215
3216 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
3217
3218         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
3219         __catch macros for exception handling.
3220
3221 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
3222
3223         PR libstdc++/108221
3224         * include/bits/stl_algobase.h (__lg): Replace six overloads with
3225         a single function template for all integer types.
3226         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
3227         arithmetic results back to _Distance.
3228
3229 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
3230
3231         PR libstdc++/108221
3232         * include/std/span (span::span()): Un-simplify constraint to
3233         work for size_t of lesser rank than int.
3234
3235 2023-01-07  LIU Hao  <lh_mouse@126.com>
3236
3237         PR middle-end/108300
3238         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
3239         <windows.h>.
3240         * src/c++11/thread.cc: Likewise.
3241         * src/c++17/fs_ops.cc: Likewise.
3242         * src/filesystem/ops.cc: Likewise.
3243
3244 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3245
3246         PR libstdc++/108228
3247         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
3248
3249 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3250
3251         PR libstdc++/108235
3252         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
3253         template and partial specialization for synchronizing access to
3254         time_zone::_Impl::infos.
3255         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
3256         rules_counter.
3257
3258 2023-01-06  Patrick Palka  <ppalka@redhat.com>
3259
3260         PR libstdc++/108260
3261         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
3262         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
3263         (__cpp_lib_ranges_chunk): Likewise.
3264         (__cpp_lib_ranges_slide): Likewise.
3265         (__cpp_lib_ranges_chunk_by): Likewise.
3266         (__cpp_lib_ranges_join_with): Likewise.
3267         (__cpp_lib_ranges_repeat): Likewise.
3268         (__cpp_lib_ranges_stride): Likewise.
3269         (__cpp_lib_ranges_cartesian_product): Likewise.
3270         (__cpp_lib_ranges_as_rvalue): Likewise.
3271         * include/std/version: Ditto.
3272         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
3273         feature-test macro.
3274         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
3275         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
3276         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
3277         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
3278         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
3279         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
3280         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
3281         * testsuite/std/ranges/repeat/1.cc: Likewise.
3282         * testsuite/std/ranges/zip/1.cc: Likewise.
3283         * testsuite/std/ranges/version_c++23.cc: New test.
3284
3285 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3286
3287         PR libstdc++/108214
3288         * include/std/bitset (operator>>): Use alloca in the right
3289         scope, not in a constructor.
3290         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
3291
3292 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3293
3294         PR libstdc++/108221
3295         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
3296         Disable visiting floating-point types.
3297
3298 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
3299
3300         PR libstdc++/108288
3301         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
3302         (_Safe_iterator::operator--(int)): Do not hold lock around
3303         construction of return value.
3304
3305 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
3306
3307         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
3308         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
3309         lock release.  Revise loop.
3310         (__atomic_add): Likewise.
3311
3312 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3313
3314         PR libstdc++/108212
3315         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
3316         variable.
3317         (StdChronoTimePointPrinter::to_string): Use it.
3318
3319 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3320
3321         PR libstdc++/108290
3322         * include/std/functional (_Bind_front): Add no_unique_address
3323         attribute to data members.
3324         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
3325         size of call wrappers with empty types for targets and bound
3326         arguments.
3327
3328 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3329
3330         PR libstdc++/108211
3331         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
3332         using only last component of the name.
3333
3334 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3335
3336         PR libstdc++/108228
3337         PR libstdc++/108235
3338         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
3339         the latest symbol version.
3340         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
3341         atomic<_Node*> is not always lock free.
3342         (USE_ATOMIC_LIST_HEAD): New macro.
3343         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
3344         definition of weak symbol.
3345         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
3346         (tzdb_list::_Node::_S_list_head): New function for accessing
3347         list head efficiently.
3348         (tzdb_list::_Node::_S_cache_list_head): New function for
3349         updating _S_list_head.
3350
3351 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3352
3353         PR libstdc++/108265
3354         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
3355         duration rep is unsigned.
3356         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
3357
3358 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
3359
3360         PR libstdc++/108228
3361         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
3362         Add __gnu_cxx::zoneinfo_dir_override().
3363
3364 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
3365
3366         PR libstdc++/108258
3367         * include/std/array (__array_traits<T, 0>::operator T*()): Add
3368         constexpr.
3369         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
3370         std::array<T, 0>::data().
3371
3372 \f
3373 Copyright (C) 2023 Free Software Foundation, Inc.
3374
3375 Copying and distribution of this file, with or without modification,
3376 are permitted in any medium without royalty provided the copyright
3377 notice and this notice are preserved.