libstdc++-v3/ChangeLog

   1 2023-11-30  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         * include/std/ranges (__detail::__toable): Fix incorrect use of
   4         _Range instead of _Cont.
   5         (__detail::_ToClosure, __detail::_ToClosure2): Add missing
   6         constexpr specifier on constructors.
   7         * testsuite/std/ranges/conv/1.cc (_Cont, _Cont2, _Cont3): Remove
   8         unnecessary begin() and end() members.
   9         (test_constexpr): New function to check range adaptors are
  10         usable in constant expressions.
  11
  12 2023-11-29  Thomas Schwinge  <thomas@codesourcery.com>
  13
  14         * testsuite/23_containers/span/at.cc: Fix for '-fno-exceptions'
  15         configurations.
  16
  17 2023-11-28  Jonathan Wakely  <jwakely@redhat.com>
  18
  19         * include/bits/atomic_wait.h: Include <stdint.h>.
  20
  21 2023-11-28  Jonathan Wakely  <jwakely@redhat.com>
  22
  23         * include/bits/stl_uninitialized.h: Fix typo in comment.
  24
  25 2023-11-24  Jan Hubicka  <jh@suse.cz>
  26
  27         PR middle-end/109849
  28         * include/bits/stl_uninitialized.h (__relocate_a_1): Use memcpy instead
  29         of memmove.
  30
  31 2023-11-23  Jonathan Wakely  <jwakely@redhat.com>
  32
  33         PR libstdc++/111055
  34         * include/bits/ranges_base.h (from_range_t): Define new tag
  35         type.
  36         (from_range): Define new tag object.
  37         * include/bits/version.def (ranges_to_container): Define.
  38         * include/bits/version.h: Regenerate.
  39         * include/std/ranges (ranges::to): Define.
  40         * testsuite/std/ranges/conv/1.cc: New test.
  41         * testsuite/std/ranges/conv/2_neg.cc: New test.
  42         * testsuite/std/ranges/conv/version.cc: New test.
  43
  44 2023-11-23  Jonathan Wakely  <jwakely@redhat.com>
  45
  46         * testsuite/util/testsuite_allocator.h (uneq_allocator): Fix
  47         equality operator for heterogeneous comparisons.
  48
  49 2023-11-21  Jonathan Wakely  <jwakely@redhat.com>
  50
  51         * include/bits/version.def (freestanding_cstring): Add.
  52         * include/bits/version.h: Regenerate.
  53         * include/c_compatibility/string.h (strtok): Do not declare for
  54         C++26 freestanding.
  55         * include/c_global/cstring (strtok): Likewise.
  56         * testsuite/21_strings/headers/cstring/version.cc: New test.
  57
  58 2023-11-21  Jonathan Wakely  <jwakely@redhat.com>
  59
  60         * include/bits/version.def (freestanding_algorithm)
  61         (freestanding_array, freestanding_optional)
  62         (freestanding_string_view, freestanding_variant): Add.
  63         * include/bits/version.h: Regenerate.
  64         * include/std/algorithm (__glibcxx_want_freestanding_algorithm):
  65         Define.
  66         * include/std/array (__glibcxx_want_freestanding_array):
  67         Define.
  68         * include/std/optional (__glibcxx_want_freestanding_optional):
  69         Define.
  70         * include/std/string_view
  71         (__glibcxx_want_freestanding_string_view): Define.
  72         * include/std/variant (__glibcxx_want_freestanding_variant):
  73         Define.
  74         * testsuite/20_util/optional/version.cc: Add checks for
  75         __cpp_lib_freestanding_optional.
  76         * testsuite/20_util/variant/version.cc: Add checks for
  77         __cpp_lib_freestanding_variant.
  78         * testsuite/23_containers/array/tuple_interface/get_neg.cc:
  79         Adjust dg-error line numbers.
  80         * testsuite/21_strings/basic_string_view/requirements/version.cc:
  81         New test.
  82         * testsuite/23_containers/array/requirements/version.cc: New
  83         test.
  84         * testsuite/25_algorithms/fill_n/requirements/version.cc: New
  85         test.
  86         * testsuite/25_algorithms/swap_ranges/requirements/version.cc:
  87         New test.
  88
  89 2023-11-21  Jonathan Wakely  <jwakely@redhat.com>
  90
  91         * include/bits/version.def (freestanding_expected): New macro.
  92         (span): Add C++26 value.
  93         * include/bits/version.h: Regenerate.
  94         * include/std/expected (__glibcxx_want_freestanding_expected):
  95         Define.
  96         * include/std/span (span::at): New member function.
  97         * testsuite/20_util/expected/version.cc: Add checks for
  98         __cpp_lib_freestanding_expected.
  99         * testsuite/23_containers/span/2.cc: Moved to...
 100         * testsuite/23_containers/span/version.cc: ...here. Add checks
 101         for __cpp_lib_span in <span> as well as in <version>.
 102         * testsuite/23_containers/span/1.cc: Removed.
 103         * testsuite/23_containers/span/at.cc: New test.
 104
 105 2023-11-21  Jonathan Wakely  <jwakely@redhat.com>
 106
 107         * include/tr2/dynamic_bitset (dynamic_bitset): Pass zero and one
 108         characters to _M_copy_from_string.
 109         * testsuite/tr2/dynamic_bitset/string.cc: New test.
 110
 111 2023-11-21  Jonathan Wakely  <jwakely@redhat.com>
 112
 113         * doc/html/*: Regenerate.
 114         * doc/xml/faq.xml: Remove reference to buildstat.html pages.
 115         * doc/xml/manual/test.xml: Likewise
 116
 117 2023-11-21  Jan Hubicka  <jh@suse.cz>
 118
 119         PR libstdc++/110287
 120         PR middle-end/109811
 121         PR middle-end/109849
 122         * include/bits/stl_vector.h (_M_realloc_append): New member function.
 123         (push_back): Use it.
 124         * include/bits/vector.tcc: (emplace_back): Use it.
 125         (_M_realloc_insert): Let compiler know that new vector size is non-zero.
 126         (_M_realloc_append): New member function.
 127
 128 2023-11-18  Jonathan Wakely  <jwakely@redhat.com>
 129
 130         PR libstdc++/112607
 131         * include/std/format (basic_format_arg::_S_to_arg_type): Check
 132         value_type for basic_string_view and basic_string
 133         specializations.
 134         * testsuite/std/format/arguments/112607.cc: New test.
 135
 136 2023-11-18  Jonathan Wakely  <jwakely@redhat.com>
 137
 138         PR libstdc++/110801
 139         * include/std/format (_Sink_iter::_M_reserve): New member
 140         function.
 141         (_Sink::_Reservation): New nested class.
 142         (_Sink::_M_reserve, _Sink::_M_bump): New virtual functions.
 143         (_Seq_sink::_M_reserve, _Seq_sink::_M_bump): New virtual
 144         overrides.
 145         (_Iter_sink<O, ContigIter>::_M_reserve): Likewise.
 146         (__do_vformat_to): Use new functions to optimize "{}" case.
 147
 148 2023-11-17  Jonathan Wakely  <jwakely@redhat.com>
 149
 150         * config.h.in: Regenerate.
 151
 152 2023-11-17  Jonathan Wakely  <jwakely@redhat.com>
 153
 154         * include/Makefile.am: Add new header.
 155         * include/Makefile.in: Regenerate.
 156         * include/bits/version.def (saturation_arithmetic): Define.
 157         * include/bits/version.h: Regenerate.
 158         * include/std/numeric: Include new header.
 159         * include/bits/sat_arith.h: New file.
 160         * testsuite/26_numerics/saturation/add.cc: New test.
 161         * testsuite/26_numerics/saturation/cast.cc: New test.
 162         * testsuite/26_numerics/saturation/div.cc: New test.
 163         * testsuite/26_numerics/saturation/mul.cc: New test.
 164         * testsuite/26_numerics/saturation/sub.cc: New test.
 165         * testsuite/26_numerics/saturation/version.cc: New test.
 166
 167 2023-11-17  Jonathan Wakely  <jwakely@redhat.com>
 168
 169         * include/std/utility (in_range): Rename _Up parameter to _Res.
 170
 171 2023-11-17  Jonathan Wakely  <jwakely@redhat.com>
 172
 173         * include/bits/out_ptr.h: Add Doxygen comments. Remove a
 174         redundant preprocessor condition.
 175         * testsuite/20_util/smartptr.adapt/version.cc: New test.
 176
 177 2023-11-17  Jonathan Wakely  <jwakely@redhat.com>
 178
 179         * include/bits/chrono_io.h: Fix Doxygen markup.
 180
 181 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 182
 183         PR libstdc++/112564
 184         * include/std/stacktrace (formatter::format): Format according
 185         to format-spec.
 186         * include/std/thread (formatter::format): Use _Align_right as
 187         default.
 188         * testsuite/19_diagnostics/stacktrace/output.cc: Check
 189         fill-and-align handling. Change compile test to run.
 190         * testsuite/30_threads/thread/id/output.cc: Check fill-and-align
 191         handling.
 192
 193 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 194
 195         PR libstdc++/111667
 196         * include/Makefile.am: Add new header.
 197         * include/Makefile.in: Regenerate.
 198         * include/bits/out_ptr.h: New file.
 199         * include/bits/shared_ptr.h (__is_shared_ptr): Move definition
 200         to here ...
 201         * include/bits/shared_ptr_atomic.h (__is_shared_ptr): ... from
 202         here.
 203         * include/bits/shared_ptr_base.h (__shared_count): Declare
 204         out_ptr_t as a friend.
 205         (_Sp_counted_deleter, __shared_ptr): Likewise.
 206         * include/bits/unique_ptr.h (unique_ptr, unique_ptr<T[], D>):
 207         Declare out_ptr_t and inout_ptr_t as friends.
 208         (__is_unique_ptr): Define new variable template.
 209         * include/bits/version.def (out_ptr): Define.
 210         * include/bits/version.h: Regenerate.
 211         * include/std/memory: Include new header.
 212         * testsuite/20_util/smartptr.adapt/inout_ptr/1.cc: New test.
 213         * testsuite/20_util/smartptr.adapt/inout_ptr/2.cc: New test.
 214         * testsuite/20_util/smartptr.adapt/inout_ptr/shared_ptr_neg.cc:
 215         New test.
 216         * testsuite/20_util/smartptr.adapt/inout_ptr/void_ptr.cc: New
 217         test.
 218         * testsuite/20_util/smartptr.adapt/out_ptr/1.cc: New test.
 219         * testsuite/20_util/smartptr.adapt/out_ptr/2.cc: New test.
 220         * testsuite/20_util/smartptr.adapt/out_ptr/shared_ptr_neg.cc:
 221         New test.
 222         * testsuite/20_util/smartptr.adapt/out_ptr/void_ptr.cc: New
 223         test.
 224
 225 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 226
 227         * include/bits/algorithmfwd.h: Do not define standard feature
 228         test macro here.
 229         * include/bits/align.h: Likewise. Test internal macros instead
 230         of standard macros.
 231         * include/bits/alloc_traits.h: Likewise.
 232         * include/bits/allocator.h: Likewise.
 233         * include/bits/atomic_base.h: Likewise.
 234         * include/bits/atomic_timed_wait.h: Likewise.
 235         * include/bits/atomic_wait.h: Likewise.
 236         * include/bits/basic_string.h: Likewise.
 237         * include/bits/basic_string.tcc: Likewise.
 238         * include/bits/char_traits.h: Likewise.
 239         * include/bits/chrono.h: Likewise.
 240         * include/bits/cow_string.h: Likewise.
 241         * include/bits/forward_list.h: Likewise.
 242         * include/bits/hashtable.h: Likewise.
 243         * include/bits/ios_base.h: Likewise.
 244         * include/bits/memory_resource.h: Likewise.
 245         * include/bits/move.h: Likewise.
 246         * include/bits/move_only_function.h: Likewise.
 247         * include/bits/node_handle.h: Likewise.
 248         * include/bits/ptr_traits.h: Likewise.
 249         * include/bits/range_access.h: Likewise.
 250         * include/bits/ranges_algo.h: Likewise.
 251         * include/bits/ranges_cmp.h: Likewise.
 252         * include/bits/ranges_util.h: Likewise.
 253         * include/bits/semaphore_base.h: Likewise.
 254         * include/bits/shared_ptr.h: Likewise.
 255         * include/bits/shared_ptr_atomic.h: Likewise.
 256         * include/bits/shared_ptr_base.h: Likewise.
 257         * include/bits/stl_algo.h: Likewise.
 258         * include/bits/stl_algobase.h: Likewise.
 259         * include/bits/stl_function.h: Likewise.
 260         * include/bits/stl_iterator.h: Likewise.
 261         * include/bits/stl_list.h: Likewise.
 262         * include/bits/stl_map.h: Likewise.
 263         * include/bits/stl_pair.h: Likewise.
 264         * include/bits/stl_queue.h: Likewise.
 265         * include/bits/stl_stack.h: Likewise.
 266         * include/bits/stl_tree.h: Likewise.
 267         * include/bits/stl_uninitialized.h: Likewise.
 268         * include/bits/stl_vector.h: Likewise.
 269         * include/bits/unique_ptr.h: Likewise.
 270         * include/bits/unordered_map.h: Likewise.
 271         * include/bits/uses_allocator_args.h: Likewise.
 272         * include/bits/utility.h: Likewise.
 273         * include/bits/erase_if.h: Add comment.
 274         * include/std/algorithm: Define standard feature test macros
 275         here.
 276         * include/std/atomic: Likewise.
 277         * include/std/array: Likewise.
 278         * include/std/chrono: Likewise.
 279         * include/std/condition_variable: Likewise.
 280         * include/std/deque: Likewise.
 281         * include/std/format: Likewise.
 282         * include/std/functional: Likewise.
 283         * include/std/forward_list: Likewise.
 284         * include/std/ios: Likewise.
 285         * include/std/iterator: Likewise.
 286         * include/std/list: Likewise.
 287         * include/std/map: Likewise.
 288         * include/std/memory: Likewise.
 289         * include/std/numeric: Likewise.
 290         * include/std/queue: Likewise.
 291         * include/std/ranges: Likewise.
 292         * include/std/regex: Likewise.
 293         * include/std/set: Likewise.
 294         * include/std/stack: Likewise.
 295         * include/std/stop_token: Likewise.
 296         * include/std/string: Likewise.
 297         * include/std/string_view:
 298         * include/std/tuple: Likewise.
 299         * include/std/unordered_map:
 300         * include/std/unordered_set:
 301         * include/std/utility: Likewise.
 302         * include/std/vector: Likewise.
 303         * include/std/scoped_allocator: Query internal macros instead of
 304         standard macros.
 305
 306 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 307
 308         * testsuite/18_support/byte/requirements.cc: Disable PCH.
 309         * testsuite/18_support/destroying_delete.cc: Likewise.
 310         * testsuite/18_support/source_location/1.cc: Likewise.
 311         * testsuite/18_support/source_location/version.cc: Likewise.
 312         * testsuite/18_support/type_info/constexpr.cc: Likewise.
 313         * testsuite/18_support/uncaught_exceptions/uncaught_exceptions.cc:
 314         Likewise.
 315         * testsuite/19_diagnostics/stacktrace/output.cc: Likewise.
 316         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Likewise.
 317         * testsuite/19_diagnostics/stacktrace/version.cc: Likewise.
 318         * testsuite/20_util/addressof/requirements/constexpr.cc:
 319         Likewise.
 320         * testsuite/20_util/allocator_traits/header-2.cc: Likewise.
 321         * testsuite/20_util/allocator_traits/header.cc: Likewise.
 322         * testsuite/20_util/as_const/1.cc: Likewise. Likewise.
 323         * testsuite/20_util/bitset/cons/constexpr_c++23.cc: Likewise.
 324         * testsuite/20_util/bitset/version.cc: Likewise.
 325         * testsuite/20_util/duration/arithmetic/constexpr_c++17.cc:
 326         Likewise.
 327         * testsuite/20_util/duration_cast/rounding.cc: Likewise.
 328         * testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
 329         Likewise.
 330         * testsuite/20_util/exchange/constexpr.cc: Likewise.
 331         * testsuite/20_util/expected/synopsis.cc: Likewise.
 332         * testsuite/20_util/expected/version.cc: Likewise.
 333         * testsuite/20_util/function_objects/bind_front/1.cc: Likewise.
 334         * testsuite/20_util/function_objects/bind_front/2.cc: Likewise.
 335         * testsuite/20_util/function_objects/invoke/3.cc: Likewise.
 336         * testsuite/20_util/function_objects/invoke/4.cc: Likewise.
 337         * testsuite/20_util/function_objects/invoke/constexpr.cc:
 338         Likewise.
 339         * testsuite/20_util/function_objects/invoke/version.cc:
 340         Likewise.
 341         * testsuite/20_util/function_objects/searchers.cc: Likewise.
 342         * testsuite/20_util/integer_comparisons/1.cc: Likewise.
 343         * testsuite/20_util/integer_comparisons/2.cc: Likewise.
 344         * testsuite/20_util/is_bounded_array/value.cc: Likewise.
 345         * testsuite/20_util/is_layout_compatible/value.cc: Likewise.
 346         * testsuite/20_util/is_layout_compatible/version.cc: Likewise.
 347         * testsuite/20_util/is_nothrow_swappable/requirements/explicit_instantiation.cc:
 348         Likewise.
 349         * testsuite/20_util/is_nothrow_swappable/requirements/typedefs.cc:
 350         Likewise.
 351         * testsuite/20_util/is_nothrow_swappable/value.cc: Likewise.
 352         * testsuite/20_util/is_nothrow_swappable/value.h: Likewise.
 353         * testsuite/20_util/is_nothrow_swappable_with/requirements/explicit_instantiation.cc:
 354         Remove redundant checks already tested elsewhere.
 355         * testsuite/20_util/is_nothrow_swappable_with/requirements/typedefs.cc:
 356         Likewise.
 357         * testsuite/20_util/is_nothrow_swappable_with/value.cc: Disable
 358         PCH.
 359         * testsuite/20_util/is_pointer_interconvertible/value.cc:
 360         Likewise.
 361         * testsuite/20_util/is_pointer_interconvertible/version.cc:
 362         Likewise.
 363         * testsuite/20_util/is_scoped_enum/value.cc: Likewise.
 364         * testsuite/20_util/is_scoped_enum/version.cc: Likewise.
 365         * testsuite/20_util/is_swappable/requirements/explicit_instantiation.cc:
 366         Remove redundant checks already tested elsewhere.
 367         * testsuite/20_util/is_swappable/requirements/typedefs.cc:
 368         Remove redundant checks already tested elsewhere.
 369         * testsuite/20_util/is_swappable/value.cc: Disable PCH.
 370         * testsuite/20_util/is_swappable/value.h: Reorder headers.
 371         * testsuite/20_util/is_swappable_with/requirements/explicit_instantiation.cc:
 372         Remove redundant checks already tested elsewhere.
 373         * testsuite/20_util/is_swappable_with/requirements/typedefs.cc:
 374         Remove redundant checks already tested elsewhere.
 375         * testsuite/20_util/is_swappable_with/value.cc: Disable PCH.
 376         * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
 377         * testsuite/20_util/move_only_function/cons.cc: Likewise.
 378         * testsuite/20_util/move_only_function/version.cc: Likewise.
 379         * testsuite/20_util/optional/monadic/and_then.cc: Likewise.
 380         * testsuite/20_util/optional/requirements.cc: Likewise.
 381         * testsuite/20_util/optional/version.cc: Likewise.
 382         * testsuite/20_util/owner_less/void.cc: Likewise.
 383         * testsuite/20_util/reference_from_temporary/value.cc: Likewise.
 384         * testsuite/20_util/reference_from_temporary/version.cc:
 385         Likewise.
 386         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
 387         Likewise.
 388         * testsuite/20_util/shared_ptr/creation/array.cc: Likewise.
 389         * testsuite/20_util/shared_ptr/creation/overwrite.cc: Likewise.
 390         * testsuite/20_util/shared_ptr/creation/version.cc: Likewise.
 391         * testsuite/20_util/time_point_cast/rounding.cc: Likewise.
 392         * testsuite/20_util/to_chars/constexpr.cc: Likewise.
 393         * testsuite/20_util/to_chars/result.cc: Likewise.
 394         * testsuite/20_util/to_chars/version.cc: Likewise.
 395         * testsuite/20_util/to_underlying/1.cc: Likewise.
 396         * testsuite/20_util/to_underlying/version.cc: Likewise.
 397         * testsuite/20_util/tuple/apply/1.cc: Likewise.
 398         * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc:
 399         Likewise.
 400         * testsuite/20_util/tuple/make_from_tuple/1.cc: Likewise.
 401         * testsuite/20_util/tuple/p2321r2.cc: Likewise.
 402         * testsuite/20_util/tuple/tuple_element_t.cc: Likewise.
 403         * testsuite/20_util/unique_ptr/cons/constexpr_c++20.cc:
 404         Likewise.
 405         * testsuite/20_util/unique_ptr/creation/for_overwrite.cc:
 406         Likewise.
 407         * testsuite/20_util/unreachable/1.cc: Likewise.
 408         * testsuite/20_util/unreachable/version.cc: Likewise.
 409         * testsuite/20_util/unwrap_reference/1.cc: Likewise.
 410         * testsuite/20_util/unwrap_reference/3.cc: Likewise.
 411         * testsuite/20_util/variant/constexpr.cc: Likewise.
 412         * testsuite/20_util/variant/version.cc: Likewise.
 413         * testsuite/20_util/variant/visit_inherited.cc: Likewise.
 414         * testsuite/20_util/void_t/1.cc: Likewise.
 415         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
 416         Likewise.
 417         * testsuite/21_strings/basic_string/cons/char/constexpr.cc:
 418         Likewise.
 419         * testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc:
 420         Likewise.
 421         * testsuite/21_strings/basic_string/erasure.cc: Likewise.
 422         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_float.cc:
 423         Likewise.
 424         * testsuite/21_strings/basic_string/numeric_conversions/version.cc:
 425         Likewise.
 426         * testsuite/21_strings/basic_string/version.cc: Likewise.
 427         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
 428         Likewise.
 429         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
 430         Likewise.
 431         * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
 432         Likewise.
 433         * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
 434         Likewise.
 435         * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
 436         Likewise.
 437         * testsuite/21_strings/char_traits/requirements/version.cc:
 438         Likewise.
 439         * testsuite/23_containers/array/comparison_operators/constexpr.cc:
 440         Likewise.
 441         * testsuite/23_containers/array/creation/1.cc: Likewise.
 442         * testsuite/23_containers/array/creation/2.cc: Likewise.
 443         * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
 444         Likewise.
 445         * testsuite/23_containers/array/requirements/constexpr_fill.cc:
 446         Likewise.
 447         * testsuite/23_containers/array/requirements/constexpr_iter.cc:
 448         Likewise.
 449         * testsuite/23_containers/deque/erasure.cc: Likewise.
 450         * testsuite/23_containers/forward_list/erasure.cc: Likewise.
 451         * testsuite/23_containers/list/erasure.cc: Likewise.
 452         * testsuite/23_containers/map/erasure.cc: Likewise.
 453         * testsuite/23_containers/queue/cons_from_iters.cc: Likewise.
 454         * testsuite/23_containers/set/erasure.cc: Likewise.
 455         * testsuite/23_containers/span/1.cc: Likewise.
 456         * testsuite/23_containers/span/2.cc: Likewise.
 457         * testsuite/23_containers/stack/cons_from_iters.cc: Likewise.
 458         * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
 459         * testsuite/23_containers/unordered_map/operations/1.cc:
 460         Likewise.
 461         * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
 462         * testsuite/23_containers/unordered_set/operations/1.cc:
 463         Likewise.
 464         * testsuite/23_containers/vector/cons/constexpr.cc: Likewise.
 465         * testsuite/23_containers/vector/erasure.cc: Likewise.
 466         * testsuite/23_containers/vector/requirements/version.cc:
 467         Likewise.
 468         * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
 469         * testsuite/25_algorithms/clamp/constexpr.cc: Likewise.
 470         * testsuite/25_algorithms/clamp/requirements/explicit_instantiation/1.cc:
 471         Remove redundant checks already tested elsewhere.
 472         * testsuite/25_algorithms/constexpr_macro.cc: Likewise.
 473         * testsuite/25_algorithms/cpp_lib_constexpr.cc: Likewise.
 474         * testsuite/25_algorithms/fold_left/1.cc: Likewise.
 475         * testsuite/25_algorithms/pstl/feature_test-2.cc: Likewise.
 476         * testsuite/25_algorithms/pstl/feature_test-3.cc: Likewise.
 477         * testsuite/25_algorithms/pstl/feature_test-4.cc: Likewise.
 478         * testsuite/25_algorithms/pstl/feature_test-5.cc: Likewise.
 479         * testsuite/25_algorithms/pstl/feature_test.cc: Likewise.
 480         * testsuite/26_numerics/bit/bit.byteswap/byteswap.cc: Likewise.
 481         * testsuite/26_numerics/bit/bit.byteswap/version.cc: Likewise.
 482         * testsuite/26_numerics/bit/bit.cast/bit_cast.cc: Likewise.
 483         * testsuite/26_numerics/bit/bit.cast/version.cc: Likewise.
 484         * testsuite/26_numerics/bit/header-2.cc: Likewise.
 485         * testsuite/26_numerics/bit/header.cc: Likewise.
 486         * testsuite/26_numerics/complex/1.cc: Likewise.
 487         * testsuite/26_numerics/complex/2.cc: Likewise.
 488         * testsuite/26_numerics/endian/2.cc: Likewise.
 489         * testsuite/26_numerics/endian/3.cc: Likewise.
 490         * testsuite/26_numerics/gcd/1.cc: Likewise.
 491         * testsuite/26_numerics/lcm/1.cc: Likewise.
 492         * testsuite/26_numerics/lerp/1.cc: Likewise.
 493         * testsuite/26_numerics/lerp/version.cc: Likewise.
 494         * testsuite/26_numerics/midpoint/integral.cc: Likewise.
 495         * testsuite/26_numerics/midpoint/version.cc: Likewise.
 496         * testsuite/26_numerics/numbers/1.cc: Likewise.
 497         * testsuite/26_numerics/numbers/2.cc: Likewise.
 498         * testsuite/27_io/basic_filebuf/native_handle/char/1.cc:
 499         Likewise.
 500         * testsuite/27_io/basic_filebuf/native_handle/version.cc:
 501         Likewise.
 502         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc:
 503         Likewise.
 504         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
 505         Likewise.
 506         * testsuite/27_io/basic_syncbuf/1.cc: Likewise.
 507         * testsuite/27_io/basic_syncbuf/2.cc: Likewise.
 508         * testsuite/27_io/basic_syncstream/1.cc: Likewise.
 509         * testsuite/27_io/basic_syncstream/2.cc: Likewise.
 510         * testsuite/27_io/spanstream/1.cc: Likewise.
 511         * testsuite/27_io/spanstream/version.cc: Likewise.
 512         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
 513         * testsuite/29_atomics/atomic/lock_free_aliases.cc: Likewise.
 514         * testsuite/29_atomics/atomic/wait_notify/1.cc: Likewise.
 515         * testsuite/29_atomics/atomic/wait_notify/2.cc: Likewise.
 516         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
 517         Likewise.
 518         * testsuite/29_atomics/headers/stdatomic.h/version.cc: Likewise.
 519         * testsuite/30_threads/barrier/1.cc: Likewise.
 520         * testsuite/30_threads/barrier/2.cc: Likewise.
 521         * testsuite/30_threads/condition_variable_any/stop_token/1.cc:
 522         Likewise.
 523         * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
 524         Likewise.
 525         * testsuite/30_threads/jthread/1.cc: Likewise.
 526         * testsuite/30_threads/jthread/version.cc: Likewise.
 527         * testsuite/30_threads/latch/1.cc: Likewise.
 528         * testsuite/30_threads/latch/2.cc: Likewise.
 529         * testsuite/30_threads/scoped_lock/requirements/typedefs.cc:
 530         Likewise.
 531         * testsuite/30_threads/semaphore/1.cc: Likewise.
 532         * testsuite/30_threads/semaphore/2.cc: Likewise.
 533         * testsuite/30_threads/stop_token/1.cc: Likewise.
 534         * testsuite/30_threads/stop_token/2.cc: Likewise.
 535         * testsuite/experimental/feat-char8_t.cc: Likewise.
 536         * testsuite/experimental/iterator/ostream_joiner.cc: Likewise.
 537         * testsuite/experimental/numeric/gcd.cc: Likewise.
 538         * testsuite/experimental/scopeguard/uniqueres.cc: Likewise.
 539         * testsuite/std/concepts/1.cc: Likewise.
 540         * testsuite/std/concepts/2.cc: Likewise.
 541         * testsuite/std/ranges/adaptors/as_const/1.cc: Likewise.
 542         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
 543         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
 544         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
 545         * testsuite/std/ranges/adaptors/enumerate/1.cc: Likewise.
 546         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
 547         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
 548         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
 549         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
 550         * testsuite/std/ranges/headers/ranges/synopsis.cc: Likewise.
 551         * testsuite/std/ranges/repeat/1.cc: Likewise.
 552         * testsuite/std/ranges/version_c++23.cc: Likewise.
 553         * testsuite/std/ranges/zip/1.cc: Likewise.
 554         * testsuite/std/time/syn_c++20.cc: Likewise.
 555         * testsuite/experimental/feat-cxx14.cc: Likewise. Include
 556         <algorithm> and <iterator>.
 557         * testsuite/23_containers/array/tuple_interface/get_neg.cc:
 558         Adjust dg-error line numbers.
 559
 560 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 561
 562         * include/bits/version.def (stds): Use >= 202100 for C++23
 563         condition.
 564         * include/bits/version.h: Regenerate.
 565         * include/std/thread: Use > C++20 instead of >= C++23 for
 566         __cplusplus condition.
 567
 568 2023-11-16  Jonathan Wakely  <jwakely@redhat.com>
 569
 570         * include/std/istream (__rvalue_stream_extraction_t): Test
 571         __cpp_concepts instead of __cpp_lib_concepts.
 572         * include/std/ostream (__derived_from_ios_base): Likewise.
 573         (__rvalue_stream_insertion_t): Likewise.
 574
 575 2023-11-15  Jonathan Wakely  <jwakely@redhat.com>
 576
 577         PR libstdc++/112491
 578         * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.index):
 579         Correctly handle unused capacity at the start of the first node.
 580         * testsuite/libstdc++-xmethods/deque.cc: Check index operator
 581         when elements have been removed from the front.
 582
 583 2023-11-15  Jonathan Wakely  <jwakely@redhat.com>
 584
 585         * include/std/stacktrace (basic_stacktrace::at): Fix class name
 586         in exception message.
 587         * testsuite/19_diagnostics/stacktrace/hash.cc: Do not fail if
 588         current() returns a non-empty stacktrace.
 589
 590 2023-11-15  Alexandre Oliva  <oliva@gnu.org>
 591
 592         Revert:
 593         2023-11-15  Alexandre Oliva  <oliva@adacore.com>
 594
 595         * include/bits/stl_bvector.h (_GLIBCXX_ALWAYS_INLINE): Undef.
 596
 597 2023-11-15  Alexandre Oliva  <oliva@adacore.com>
 598
 599         * include/bits/stl_bvector.h (_GLIBCXX_ALWAYS_INLINE): Undef.
 600
 601 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
 602
 603         * include/std/chrono (operator-(const weekday&, const weekday&)):
 604         Optimize.
 605
 606 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
 607
 608         * include/std/chrono (weekday::_S_from_days): Fix UB.
 609         * testsuite/std/time/weekday/1.cc: Add test for overflow.
 610
 611 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
 612
 613         * include/std/chrono (year::is_leap): Clear code.
 614
 615 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
 616
 617         * include/std/chrono (year_month_day_last::day): Remove &1.
 618
 619 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
 620
 621         * include/std/charconv (__from_chars_pow2_base): Convert base to
 622         unsigned for call to __countr_zero.
 623         (__from_chars_alnum): Likewise for call to __bit_width.
 624
 625 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
 626
 627         PR libstdc++/112348
 628         * include/std/stacktrace (hash<basic_stacktrace<Alloc>>): Fix
 629         type of hash functio nfor entries.
 630         * testsuite/19_diagnostics/stacktrace/hash.cc: New test.
 631
 632 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
 633
 634         PR libstdc++/112491
 635         * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.size): Fix
 636         calculation to use _M_start._M_cur.
 637         * testsuite/libstdc++-xmethods/deque.cc: Check failing cases.
 638
 639 2023-11-13  Arsen Arsenović  <arsen@aarsen.me>
 640
 641         * configure: Regenerate.
 642
 643 2023-11-13  Jonathan Wakely  <jwakely@redhat.com>
 644
 645         * testsuite/std/time/clock/file/io.cc: Double timeout using
 646         dg-timeout-factor.
 647         * testsuite/std/time/clock/gps/io.cc: Likewise.
 648         * testsuite/std/time/clock/local/io.cc: Likewise.
 649         * testsuite/std/time/clock/system/io.cc: Likewise.
 650         * testsuite/std/time/clock/tai/io.cc: Likewise.
 651         * testsuite/std/time/clock/utc/io.cc: Likewise.
 652
 653 2023-11-13  Jonathan Wakely  <jwakely@redhat.com>
 654
 655         PR libstdc++/112480
 656         * include/std/optional (_Optional_payload_base::_M_reset): Set
 657         _M_engaged to false unconditionally.
 658
 659 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 660
 661         PR libstdc++/112467
 662         * include/bits/stl_bvector.h (_M_assume_normalized): Do not use
 663         statement form of assume attribute for Clang.
 664
 665 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 666
 667         * include/std/string_view (operator==, operator<=>): Remove
 668         redundant overloads (LWG 3950).
 669
 670 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 671
 672         * testsuite/26_numerics/headers/complex.h/std_c++11.h: Moved to...
 673         * testsuite/26_numerics/headers/complex.h/std_c++11.cc: ...here.
 674         * testsuite/26_numerics/headers/complex.h/std_c++98.h: Moved to...
 675         * testsuite/26_numerics/headers/complex.h/std_c++98.cc: ...here.
 676         Check macro first and then #undef.
 677         * testsuite/26_numerics/headers/complex.h/std_gnu++11.h: Moved to...
 678         * testsuite/26_numerics/headers/complex.h/std_gnu++11.cc: ...here.
 679
 680 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 681
 682         PR libstdc++/112473
 683         * include/bits/utility.h (integer_sequence): Add static_assert.
 684         * testsuite/20_util/integer_sequence/112473.cc: New test.
 685
 686 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 687
 688         * testsuite/20_util/pair/dangling_ref.cc: Add hosted effective
 689         target for specifiers using c++17_down.
 690
 691 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 692
 693         * include/bits/shared_ptr_atomic.h (atomic_is_lock_free)
 694         (atomic_load_explicit, atomic_load, atomic_store_explicit)
 695         (atomic_store, atomic_exchange_explicit, atomic_exchange)
 696         (atomic_compare_exchange_strong, atomic_compare_exchange_weak)
 697         (atomic_compare_exchange_strong_explicit)
 698         (atomic_compare_exchange_weak_explicit): Add deprecated
 699         attribute for C++20 and later.
 700         * testsuite/20_util/shared_ptr/atomic/1.cc: Suppress deprecated
 701         warnings.
 702         * testsuite/20_util/shared_ptr/atomic/2.cc: Likewise.
 703         * testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
 704         * testsuite/29_atomics/atomic/lwg3220.cc: Likewise.
 705
 706 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 707
 708         * include/bits/std_mutex.h (lock_guard): Add [[nodiscard]]
 709         attribute to constructors.
 710         * include/bits/unique_lock.h (unique_lock): Likewise.
 711         * include/std/mutex (scoped_lock, scoped_lock<Mutex>): Likewise.
 712         * testsuite/30_threads/lock_guard/cons/nodiscard.cc: New test.
 713         * testsuite/30_threads/scoped_lock/cons/nodiscard.cc: New test.
 714         * testsuite/30_threads/unique_lock/cons/nodiscard.cc: New test.
 715
 716 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 717
 718         * include/std/span (span, as_bytes, as_writable_bytes): Add
 719         [[nodiscard]] attribute on all non-void functions.
 720         * testsuite/23_containers/span/back_assert_neg.cc: Suppress
 721         nodiscard warning.
 722         * testsuite/23_containers/span/back_neg.cc: Likewise.
 723         * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
 724         * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
 725         * testsuite/23_containers/span/first_neg.cc: Likewise.
 726         * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
 727         * testsuite/23_containers/span/front_neg.cc: Likewise.
 728         * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
 729         * testsuite/23_containers/span/index_op_neg.cc: Likewise.
 730         * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
 731         * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
 732         * testsuite/23_containers/span/last_neg.cc: Likewise.
 733         * testsuite/23_containers/span/subspan_2_assert_neg.cc:
 734         Likewise.
 735         * testsuite/23_containers/span/subspan_3_assert_neg.cc:
 736         Likewise.
 737         * testsuite/23_containers/span/subspan_4_assert_neg.cc:
 738         Likewise.
 739         * testsuite/23_containers/span/subspan_5_assert_neg.cc:
 740         Likewise.
 741         * testsuite/23_containers/span/subspan_6_assert_neg.cc:
 742         Likewise.
 743         * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
 744         * testsuite/23_containers/span/subspan_neg.cc: Likewise.
 745         * testsuite/23_containers/span/nodiscard.cc: New test.
 746
 747 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 748
 749         PR libstdc++/111638
 750         * config.h.in: Regenerate.
 751         * configure: Regenerate.
 752         * linkage.m4 (GLIBCXX_MAYBE_UNDERSCORED_FUNCS): Remove.
 753         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1): Do not check for _foo.
 754         (GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1): Likewise.
 755         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2): Likewise.
 756         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3): Likewise.
 757         (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2): Do not use
 758         GLIBCXX_MAYBE_UNDERSCORED_FUNCS.
 759
 760 2023-11-11  Nathaniel Shead  <nathanieloshead@gmail.com>
 761
 762         PR libstdc++/79700
 763         * include/c_global/cmath (acosf, acosl, asinf, asinl, atanf)
 764         (atanl, atan2f, atan2l, ceilf, ceill, cosf, cosl, coshf, coshl)
 765         (expf, expl, fabsf, fabsl, floorf, floorl, fmodf, fmodl, frexpf)
 766         (frexpl, ldexpf, ldexpl, logf, logl, log10f, log10l, modff)
 767         (modfl, powf, powl, sinf, sinl, sinhf, sinhl, sqrtf, sqrtl, tanf)
 768         (tanl, tanhf, tanhl): Add using-declarations in namespace std.
 769         * testsuite/26_numerics/headers/cmath/equivalent_functions.cc:
 770         New test.
 771         * testsuite/26_numerics/headers/cmath/functions_std_c++17.cc:
 772         Add checks for existence of above names.
 773
 774 2023-11-09  Arsen Arsenović  <arsen@aarsen.me>
 775
 776         * testsuite/20_util/scoped_allocator/noexcept.cc: Mark as
 777         requiring hosted.
 778
 779 2023-11-09  Arsen Arsenović  <arsen@aarsen.me>
 780
 781         * include/bits/memoryfwd.h: Remove HOSTED check around allocator
 782         and its specializations.
 783
 784 2023-11-09  Patrick Palka  <ppalka@redhat.com>
 785
 786         PR libstdc++/112453
 787         * include/std/ranges (__detail::__box<_Tp>::operator*): Define
 788         && overloads as well.
 789         (__detail::__take_of_repeat_view): Forward __r when accessing
 790         its _M_value member.
 791         (__detail::__drop_of_repeat_view): Likewise.
 792         * testsuite/std/ranges/repeat/1.cc (test07): New test.
 793
 794 2023-11-09  François Dumont  <fdumont@gcc.gnu.org>
 795
 796         * include/bits/hashtable_policy.h (_RehashStateGuard): New.
 797         (_Insert_base<>::_M_insert_range(_IIt, _IIt, const _NodeGet&, false_type)):
 798         Adapt.
 799         * include/bits/hashtable.h (__rehash_guard_t): New.
 800         (__rehash_state): Remove.
 801         (_M_rehash): Remove.
 802         (_M_rehash_aux): Rename into _M_rehash.
 803         (_M_assign_elements, _M_insert_unique_node, _M_insert_multi_node): Adapt.
 804         (rehash): Adapt.
 805
 806 2023-11-09  François Dumont  <fdumont@gcc.gnu.org>
 807
 808         * include/bits/hashtable_policy.h
 809         (struct _NodePtrGuard<_HashtableAlloc, _NodePtr>): New.
 810         (_ReuseAllocNode::operator()(_Args&&...)): Use latter to guard allocated node
 811         pointer while constructing in place the value_type instance.
 812
 813 2023-11-09  Alexandre Oliva  <oliva@adacore.com>
 814
 815         PR libstdc++/110807
 816         * include/bits/stl_bvector.h (_Bit_iterator_base): Add
 817         _M_assume_normalized member function.  Call it in _M_bump_up,
 818         _M_bump_down, _M_incr, operator==, operator<=>, operator<, and
 819         operator-.
 820         (_Bit_iterator): Also call it in operator*.
 821         (_Bit_const_iterator): Likewise.
 822
 823 2023-11-07  François Dumont  <fdumont@gcc.gnu.org>
 824
 825         * include/bits/hashtable_policy.h
 826         (_Hashtable_alloc<>::_M_allocate_node): Add missing call to node destructor
 827         on construct exception.
 828
 829 2023-11-07  Richard Biener  <rguenther@suse.de>
 830
 831         PR libstdc++/112351
 832         * src/c++98/locale.cc (locale::facet::_S_initialize_once):
 833         Check whether _S_c_locale is already initialized.
 834         (locale::facet::_S_get_c_locale): Always perform non-threadsafe
 835         init when threadsafe init failed.
 836
 837 2023-11-06  Ian Lance Taylor  <iant@golang.org>
 838
 839         PR libbacktrace/111315
 840         PR libbacktrace/112263
 841         * acinclude.m4: Set -D_GNU_SOURCE in BACKTRACE_CPPFLAGS and when
 842         grepping link.h for dl_iterate_phdr.
 843         * configure: Regenerate.
 844
 845 2023-11-06  Jonathan Wakely  <jwakely@redhat.com>
 846
 847         * include/std/expected (expected::and_then, expected::or_else):
 848         Add string literals to static assertions.
 849         * include/std/optional (optional::and_then, optional::or_else):
 850         Likewise.
 851
 852 2023-11-04  Feng Jisen  <J1senn@outlook.com>
 853
 854         * include/bits/utility.h (_Nth_type): Remove redundant partial
 855         specialization.
 856
 857 2023-11-04  Jonathan Wakely  <jwakely@redhat.com>
 858
 859         PR libstdc++/110133
 860         * include/std/system_error (system_error::system_error): Group
 861         arguments so that concatenation can reuse rvalue's capacity.
 862         * src/c++11/system_error.cc (strerror_string): New function.
 863         [_GLIBCXX_HAVE_STRERROR_R] (use_strerror_result): New functions.
 864         (generic_error_category::message): Use strerror_string.
 865         (system_error_category::message): Likewise.
 866
 867 2023-11-04  Jonathan Wakely  <jwakely@redhat.com>
 868
 869         * doc/xml/manual/appendix_contributing.xml: Replace example that
 870         uses a BADNAME.
 871         * doc/html/manual/source_code_style.html: Regenerate.
 872
 873 2023-11-02  Jonathan Wakely  <jwakely@redhat.com>
 874
 875         PR libstdc++/112314
 876         * include/std/string_view (string_view::remove_suffix): Add
 877         debug assertion.
 878         * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/debug.cc:
 879         New test.
 880         * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/debug.cc:
 881         New test.
 882
 883 2023-11-02  Jonathan Wakely  <jwakely@redhat.com>
 884
 885         * acinclude.m4 (GLIBCXX_ENABLE_C99): Fix snprintf checks.
 886         * configure: Regenerate.
 887
 888 2023-10-30  François Dumont  <fdumont@gcc.gnu.org>
 889
 890         * config/abi/pre/gnu-versioned-namespace.ver: Add comment on recently
 891         added emul TLS symbols.
 892
 893 2023-10-30  François Dumont  <fdumont@gcc.gnu.org>
 894
 895         * src/experimental/contract.cc
 896         [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Rework comment.
 897         Remove weak attribute.
 898
 899 2023-10-29  François Dumont  <fdumont@gcc.gnu.org>
 900
 901         * config/abi/pre/gnu-versioned-namespace.ver: Add missing emul TLS
 902         symbols.
 903
 904 2023-10-29  François Dumont  <fdumont@gcc.gnu.org>
 905
 906         * src/experimental/contract.cc
 907         [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Provide symbol
 908         without version namespace decoration for gcc.
 909
 910 2023-10-26  Jonathan Wakely  <jwakely@redhat.com>
 911
 912         PR libstdc++/112089
 913         * include/std/shared_mutex (shared_lock::unlock): Change errc
 914         constant to operation_not_permitted.
 915         * testsuite/30_threads/shared_lock/locking/112089.cc: New test.
 916
 917 2023-10-26  Jonathan Wakely  <jwakely@redhat.com>
 918
 919         * testsuite/20_util/duration/io.cc: Double timeout using
 920         dg-timeout-factor.
 921         * testsuite/std/time/day/io.cc: Likewise.
 922         * testsuite/std/time/format.cc: Likewise.
 923         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
 924         * testsuite/std/time/month/io.cc: Likewise.
 925         * testsuite/std/time/month_day/io.cc: Likewise.
 926         * testsuite/std/time/month_day_last/io.cc: Likewise.
 927         * testsuite/std/time/month_weekday/io.cc: Likewise.
 928         * testsuite/std/time/month_weekday_last/io.cc: Likewise.
 929         * testsuite/std/time/weekday/io.cc: Likewise.
 930         * testsuite/std/time/weekday_indexed/io.cc: Likewise.
 931         * testsuite/std/time/weekday_last/io.cc: Likewise.
 932         * testsuite/std/time/year/io.cc: Likewise.
 933         * testsuite/std/time/year_month/io.cc: Likewise.
 934         * testsuite/std/time/year_month_day/io.cc: Likewise.
 935         * testsuite/std/time/year_month_day_last/io.cc: Likewise.
 936         * testsuite/std/time/year_month_weekday/io.cc: Likewise.
 937         * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
 938         * testsuite/std/time/zoned_time/io.cc: Likewise.
 939
 940 2023-10-25  Jonathan Wakely  <jwakely@redhat.com>
 941
 942         PR libstdc++/111936
 943         * src/libbacktrace/Makefile.am: Add -prefer-pic to libtool
 944         compile commands.
 945         * src/libbacktrace/Makefile.in: Regenerate.
 946
 947 2023-10-24  Paul M. Bendixen  <paulbendixen@gmail.com>
 948
 949         * include/Makefile.am: Move cstdarg, cstdalign and cstdbool to
 950         freestanding.
 951         * include/Makefile.in: Regenerate.
 952
 953 2023-10-22  Iain Sandoe  <iain@sandoe.co.uk>
 954
 955         * configure: Regenerate.
 956         * configure.ac: Handle Darwin rpaths.
 957         * src/Makefile.am: Handle Darwin rpaths.
 958         * src/Makefile.in: Regenerate.
 959
 960 2023-10-21  Jonathan Wakely  <jwakely@redhat.com>
 961
 962         * include/bits/basic_string.h (_M_init_local_buf()): New
 963         function.
 964         (_M_use_local_data()): Use _M_init_local_buf.
 965         (basic_string(), basic_string(const Alloc&))
 966         (basic_string(basic_string&&))
 967         (basic_string(basic_string&&, const Alloc&)): Use
 968         _M_init_local_buf instead of _M_use_local_data().
 969         * include/bits/basic_string.tcc (swap(basic_string&))
 970         (_M_construct(InIter, InIter, input_iterator_tag))
 971         (_M_construct(InIter, InIter, forward_iterator_tag))
 972         (_M_construct(size_type, CharT), reserve()): Likewise.
 973
 974 2023-10-21  Benjamin Brock  <brock@cs.berkeley.edu>
 975
 976         * include/std/ranges (zip_view, adjacent_view): Implement
 977         workaround for LLVM-61763.
 978
 979 2023-10-21  Dimitrij Mijoski  <dmjpp@hotmail.com>
 980
 981         * testsuite/22_locale/codecvt/codecvt_unicode.h: Test length()
 982
 983 2023-10-21  Jonathan Wakely  <jwakely@redhat.com>
 984
 985         * include/bits/fs_dir.h (operator==(default_sentinel_t)): Fix
 986         indentation.
 987
 988 2023-10-20  Marek Polacek  <polacek@redhat.com>
 989
 990         PR testsuite/111883
 991         * include/std/charconv (from_chars): Add explicit casts.
 992
 993 2023-10-19  François Dumont  <fdumont@gcc.gnu.org>
 994
 995         * include/bits/hashtable_policy.h
 996         (_Hash_code_base::_M_hash_code(const _Hash&, const _Hash_node_value<>&)): Remove.
 997         (_Hash_code_base::_M_hash_code<_H2>(const _H2&, const _Hash_node_value<>&)): Remove.
 998         * include/bits/hashtable.h
 999         (_M_src_hash_code<_H2>(const _H2&, const key_type&, const __node_value_type&)): New.
1000         (_M_merge_unique<>, _M_merge_multi<>): Use latter.
1001         * testsuite/23_containers/unordered_map/modifiers/merge.cc
1002         (test04, test05, test06): New test cases.
1003
1004 2023-10-13  Jakub Jelinek  <jakub@redhat.com>
1005
1006         * testsuite/tr1/8_c_compatibility/cstdio/functions.cc (test01):
1007         Initialize stream to va_arg(ap, FILE*) rather than 0.
1008         * testsuite/tr1/8_c_compatibility/cwchar/functions.cc (test01):
1009         Likewise.
1010
1011 2023-10-13  Hans-Peter Nilsson  <hp@axis.com>
1012
1013         * testsuite/29_atomics/atomic/compare_exchange_padding.cc,
1014         testsuite/29_atomics/atomic_flag/clear/1.cc,
1015         testsuite/29_atomics/atomic_flag/cons/value_init.cc,
1016         testsuite/29_atomics/atomic_flag/test_and_set/explicit.cc,
1017         testsuite/29_atomics/atomic_flag/test_and_set/implicit.cc,
1018         testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc,
1019         testsuite/29_atomics/atomic_ref/generic.cc,
1020         testsuite/29_atomics/atomic_ref/integral.cc,
1021         testsuite/29_atomics/atomic_ref/pointer.cc: Replace
1022         dg-require-thread-fence with dg-require-atomic-cmpxchg-word.
1023
1024 2023-10-13  Hans-Peter Nilsson  <hp@axis.com>
1025
1026         * testsuite/lib/dg-options.exp (dg-require-atomic-cmpxchg-word):
1027         New proc.
1028         * testsuite/lib/libstdc++.exp (check_v3_target_atomic_cmpxchg_word):
1029         Ditto.
1030
1031 2023-10-05  François Dumont  <fdumont@gcc.gnu.org>
1032
1033         * config/abi/pre/gnu-versioned-namespace.ver: Add missing symbols
1034         for _Float{16,32,64,128,32x,64x,128x}.
1035
1036 2023-10-04  Tom Tromey  <tromey@adacore.com>
1037
1038         * python/libstdcxx/v6/printers.py
1039         (StdExpAnyPrinter.__init__): Qualify call to
1040         _string_types.
1041
1042 2023-10-04  Tom Tromey  <tromey@adacore.com>
1043
1044         * python/libstdcxx/v6/printers.py: Assume that
1045         _versioned_namespace is non-None.
1046         * python/libstdcxx/v6/xmethods.py (is_specialization_of):
1047         Assume that _versioned_namespace is non-None.
1048
1049 2023-10-04  Tom Tromey  <tromey@adacore.com>
1050
1051         * python/libstdcxx/v6/xmethods.py (_versioned_namespace):
1052         Define.
1053
1054 2023-09-29  Dimitrij Mijoski  <dmjpp@hotmail.com>
1055
1056         PR libstdc++/108976
1057         * src/c++11/codecvt.cc (read_utf8_code_point): Fix handing of
1058         surrogates in UTF-8.
1059         (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-8.
1060         (ucs4_in): Fix handling of range with odd number of bytes.
1061         (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-16.
1062         (ucs2_out): Fix handling of surrogates in UCS-2 -> UTF-16.
1063         (ucs2_in): Fix handling of range with odd number of bytes.
1064         (__codecvt_utf16_base<char16_t>::do_in): Likewise.
1065         (__codecvt_utf16_base<char32_t>::do_in): Likewise.
1066         (__codecvt_utf16_base<wchar_t>::do_in): Likewise.
1067         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Renames, add
1068         tests for codecvt_utf16<char16_t> and codecvt_utf16<char32_t>.
1069         * testsuite/22_locale/codecvt/codecvt_unicode.h: Refactor UTF-8
1070         testing functions for char8_t, add more test cases for errors,
1071         add testing functions for codecvt_utf16.
1072         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc:
1073         Renames, add tests for codecvt_utf16<whchar_t>.
1074         * testsuite/22_locale/codecvt/codecvt_utf16/79980.cc (test06):
1075         Fix test.
1076         * testsuite/22_locale/codecvt/codecvt_unicode_char8_t.cc: New
1077         test.
1078
1079 2023-09-29  Nathaniel Shead  <nathanieloshead@gmail.com>
1080
1081         * include/bits/basic_string.h: (basic_string(basic_string&&)):
1082         Activate _M_local_buf when needed.
1083         (basic_string(basic_string&&, const _Alloc&)): Likewise.
1084         * include/bits/basic_string.tcc: (basic_string::swap): Likewise.
1085         * include/std/variant: (__detail::__variant::__construct_n): New.
1086         (__detail::__variant::__emplace): Use __construct_n.
1087
1088 2023-09-28  Tom Tromey  <tromey@adacore.com>
1089
1090         * python/libstdcxx/v6/printers.py (Printer.add_version)
1091         (add_one_template_type_printer)
1092         (FilteringTypePrinter.add_one_type_printer): Use Python
1093         "not in" operator.
1094
1095 2023-09-28  Tom Tromey  <tromey@adacore.com>
1096
1097         * python/libstdcxx/v6/printers.py (std_ratio_t_tuple):
1098         Remove.
1099
1100 2023-09-28  Tom Tromey  <tromey@adacore.com>
1101
1102         * python/libstdcxx/v6/printers.py
1103         (StdExpOptionalPrinter.__init__, lookup_node_type):
1104         Remove unused variables.
1105
1106 2023-09-28  Tom Tromey  <tromey@adacore.com>
1107
1108         * python/libstdcxx/v6/printers.py: Don't import 'os'.
1109         * python/libstdcxx/v6/__init__.py: Don't import 'gdb'.
1110
1111 2023-09-28  Tom Tromey  <tromey@adacore.com>
1112
1113         * python/libstdcxx/v6/printers.py: Use gdb.ValuePrinter
1114         everywhere.  Rename members to start with "_".
1115
1116 2023-09-28  Tom Tromey  <tromey@adacore.com>
1117
1118         * testsuite/lib/gdb-test.exp (gdb-test): Enable Python
1119         stack traces from gdb.
1120
1121 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
1122
1123         * python/libstdcxx/v6/xmethods.py (is_specialization_of): Define
1124         new function.
1125         (ArrayMethodsMatcher, DequeMethodsMatcher)
1126         (ForwardListMethodsMatcher, ListMethodsMatcher)
1127         (VectorMethodsMatcher, AssociativeContainerMethodsMatcher)
1128         (UniquePtrGetWorker, UniquePtrMethodsMatcher)
1129         (SharedPtrSubscriptWorker, SharedPtrMethodsMatcher): Use
1130         is_specialization_of instead of re.match.
1131
1132 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
1133
1134         * python/libstdcxx/v6/printers.py: Break long lines. Use raw
1135         strings for regular expressions. Add whitespace around
1136         operators.
1137         (is_member_of_namespace): Use isinstance to check type.
1138         (is_specialization_of): Likewise. Adjust template_name
1139         for versioned namespace instead of duplicating the re.match
1140         call.
1141         (StdExpAnyPrinter._string_types): New static method.
1142         (StdExpAnyPrinter.to_string): Use _string_types.
1143
1144 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
1145
1146         * python/libstdcxx/v6/printers.py: Format docstrings according
1147         to PEP 257.
1148         * python/libstdcxx/v6/xmethods.py: Likewise.
1149
1150 2023-09-28  Tim Song  <t.canens.cpp@gmail.com>
1151
1152         PR libstdc++/111050
1153         * include/bits/hashtable_policy.h
1154         (_Hash_node_value_base<>::_M_valptr(), _Hash_node_value_base<>::_M_v())
1155         Add [[__gnu__::__always_inline__]].
1156
1157 2023-09-27  Jonathan Wakely  <jwakely@redhat.com>
1158
1159         * python/libstdcxx/v6/printers.py (StdChronoTimeZoneRulePrinter):
1160         Fix incorrect number of replacement fields.
1161
1162 2023-09-26  Hans-Peter Nilsson  <hp@axis.com>
1163
1164         * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Add
1165         dg-require-thread-fence.
1166
1167 2023-09-25  Patrick Palka  <ppalka@redhat.com>
1168
1169         * include/std/charconv (__detail::__integer_to_chars_result_type):
1170         Remove.
1171         (__detail::__to_chars_16): Use to_chars_result as return type.
1172         (__detail::__to_chars_10): Likewise.
1173         (__detail::__to_chars_8): Likewise.
1174         (__detail::__to_chars_2): Likewise.
1175         (__detail::__to_chars_i): Likewise.
1176         (__detail::__integer_from_chars_result_type): Inline the
1177         constraint into ...
1178         (from_chars): ... here.  Use __is_standard_integer in the
1179         constraint.  Encode constraint as a defaulted non-type template
1180         parameter instead of within the return type.
1181
1182 2023-09-25  John David Anglin  <danglin@gcc.gnu.org>
1183
1184         * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
1185
1186 2023-09-25  Jonathan Wakely  <jwakely@redhat.com>
1187
1188         PR libstdc++/111511
1189         PR c++/111512
1190         * include/std/array (to_array): Cast memcpy arguments to void*.
1191         * testsuite/23_containers/array/creation/111512.cc: New test.
1192
1193 2023-09-25  Jonathan Wakely  <jwakely@redhat.com>
1194
1195         * include/bits/move.h (forward_list): Define for C++23.
1196         * include/bits/version.def (forward_like): Define.
1197         * include/bits/version.h: Regenerate.
1198         * include/std/utility (__glibcxx_want_forward_like): Define.
1199         * testsuite/20_util/forward_like/1.cc: New test.
1200         * testsuite/20_util/forward_like/2_neg.cc: New test.
1201         * testsuite/20_util/forward_like/version.cc: New test.
1202
1203 2023-09-19  Marek Polacek  <polacek@redhat.com>
1204
1205         * testsuite/20_util/allocator/105975.cc: Add dg-error.
1206
1207 2023-09-18  Patrick Palka  <ppalka@redhat.com>
1208
1209         PR c++/63198
1210         PR c++/18474
1211         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
1212         Make data member seed_seq::called mutable.
1213         * testsuite/26_numerics/random/independent_bits_engine/cons/seed_seq2.cc:
1214         Likewise.
1215         * testsuite/26_numerics/random/linear_congruential_engine/cons/seed_seq2.cc:
1216         Likewise.
1217         * testsuite/26_numerics/random/mersenne_twister_engine/cons/seed_seq2.cc:
1218         Likewise.
1219         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
1220         Likewise.
1221         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/seed_seq2.cc:
1222         Likewise.
1223         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/seed_seq2.cc:
1224         Likewise.
1225
1226 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
1227
1228         * doc/xml/manual/status_cxx2020.xml: Tweak P1466R3 status.
1229         * doc/html/manual/status.html: Regenerate.
1230
1231 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
1232
1233         * doc/xml/manual/configure.xml: Use conventional option name.
1234         * doc/xml/manual/status_cxx2020.xml: Update.
1235         * doc/xml/manual/status_cxx2023.xml: Update.
1236         * doc/html/*: Regenerate.
1237
1238 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
1239
1240         * doc/xml/manual/intro.xml: Clarify that building libstdc++
1241         separately from GCC is not supported.
1242         * doc/xml/manual/prerequisites.xml: Note msgfmt prerequisite for
1243         testing.
1244         * doc/html/manual/setup.html: Regenerate.
1245
1246 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1247
1248         * testsuite/29_atomics/atomic_ref/wait_notify.cc: Do not
1249         restrict to pthreads targets.
1250         * testsuite/30_threads/jthread/3.cc: Likewise.
1251         * testsuite/30_threads/semaphore/100806.cc: Likewise.
1252         * testsuite/30_threads/semaphore/try_acquire.cc: Likewise.
1253         * testsuite/30_threads/semaphore/try_acquire_for.cc: Likewise.
1254         * testsuite/30_threads/semaphore/try_acquire_posix.cc: Likewise.
1255
1256 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1257
1258         * testsuite/18_support/coroutines/95917.cc: Remove dg-options
1259         -std=gnu++2a.
1260         * testsuite/18_support/coroutines/hash.cc: Likewise.
1261         * testsuite/18_support/coroutines/lwg3460.cc: Likewise.
1262         * testsuite/18_support/destroying_delete.cc: Likewise.
1263         * testsuite/18_support/source_location/1.cc: Likewise.
1264         * testsuite/18_support/source_location/consteval.cc: Likewise.
1265         * testsuite/18_support/source_location/version.cc: Likewise.
1266         * testsuite/19_diagnostics/error_category/operators/three_way.cc:
1267         Likewise.
1268         * testsuite/19_diagnostics/error_code/operators/three_way.cc:
1269         Likewise.
1270         * testsuite/19_diagnostics/error_condition/operators/three_way.cc:
1271         Likewise.
1272         * testsuite/19_diagnostics/stacktrace/output.cc: Likewise.
1273         * testsuite/26_numerics/adjacent_difference/lwg2055.cc:
1274         Likewise.
1275         * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
1276         * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
1277         * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
1278         * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
1279         * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: Likewise.
1280         * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc:
1281         Likewise.
1282         * testsuite/28_regex/iterators/regex_iterator/lwg3719.cc:
1283         Likewise.
1284         * testsuite/28_regex/iterators/regex_token_iterator/lwg3719.cc:
1285         Likewise.
1286         * testsuite/28_regex/sub_match/compare_c++20.cc: Likewise.
1287         * testsuite/experimental/filesystem/iterators/106201.cc:
1288         Likewise.
1289         * testsuite/experimental/scopeguard/exit.cc: Likewise.
1290         * testsuite/experimental/scopeguard/uniqueres.cc: Likewise.
1291
1292 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1293
1294         * testsuite/30_threads/barrier/1.cc: Remove dg-options
1295         -std=gnu++20.
1296         * testsuite/30_threads/barrier/2.cc: Likewise.
1297         * testsuite/30_threads/barrier/arrive.cc: Likewise.
1298         * testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
1299         * testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
1300         * testsuite/30_threads/barrier/completion.cc: Likewise.
1301         * testsuite/30_threads/condition_variable/members/clock_neg.cc:
1302         Likewise.
1303         * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
1304         Likewise.
1305         * testsuite/30_threads/condition_variable_any/stop_token/1.cc:
1306         Likewise.
1307         * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
1308         Likewise.
1309         * testsuite/30_threads/future/members/clock_neg.cc: Likewise.
1310         * testsuite/30_threads/headers/stop_token/synopsis.cc: Likewise.
1311         * testsuite/30_threads/headers/thread/types_std_c++20.cc:
1312         Likewise.
1313         * testsuite/30_threads/jthread/1.cc: Likewise.
1314         * testsuite/30_threads/jthread/100612.cc: Likewise.
1315         * testsuite/30_threads/jthread/95989.cc: Likewise.
1316         * testsuite/30_threads/jthread/jthread.cc: Likewise.
1317         * testsuite/30_threads/jthread/version.cc: Likewise.
1318         * testsuite/30_threads/latch/1.cc: Likewise.
1319         * testsuite/30_threads/latch/2.cc: Likewise.
1320         * testsuite/30_threads/latch/3.cc: Likewise.
1321         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/clock_neg.cc:
1322         Likewise.
1323         * testsuite/30_threads/semaphore/1.cc: Likewise.
1324         * testsuite/30_threads/semaphore/2.cc: Likewise.
1325         * testsuite/30_threads/semaphore/least_max_value_neg.cc:
1326         Likewise.
1327         * testsuite/30_threads/semaphore/try_acquire_until.cc: Likewise.
1328         * testsuite/30_threads/shared_future/members/clock_neg.cc:
1329         Likewise.
1330         * testsuite/30_threads/shared_lock/locking/clock_neg.cc:
1331         Likewise.
1332         * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
1333         Likewise.
1334         * testsuite/30_threads/stop_token/1.cc: Likewise.
1335         * testsuite/30_threads/stop_token/2.cc: Likewise.
1336         * testsuite/30_threads/stop_token/stop_callback.cc: Likewise.
1337         * testsuite/30_threads/stop_token/stop_callback/deadlock.cc:
1338         Likewise.
1339         * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
1340         Likewise.
1341         * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc:
1342         Likewise.
1343         * testsuite/30_threads/stop_token/stop_callback/invoke.cc:
1344         Likewise.
1345         * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
1346         * testsuite/30_threads/stop_token/stop_source/assign.cc:
1347         Likewise.
1348         * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
1349         * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
1350         Likewise.
1351         * testsuite/30_threads/thread/id/operators_c++20.cc: Likewise.
1352         * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc:
1353         Likewise.
1354         * testsuite/30_threads/unique_lock/locking/clock_neg.cc:
1355         Likewise.
1356
1357 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1358
1359         * testsuite/27_io/basic_istream/extractors_character/char/lwg2499.cc:
1360         Remove dg-options -std=gnu++2a.
1361         * testsuite/27_io/basic_istream/extractors_character/char/lwg2499_neg.cc:
1362         Likewise.
1363         * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499.cc:
1364         Likewise.
1365         * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499_neg.cc:
1366         Likewise.
1367         * testsuite/27_io/basic_istringstream/cons/char/1.cc: Likewise.
1368         * testsuite/27_io/basic_istringstream/cons/wchar_t/1.cc:
1369         Likewise.
1370         * testsuite/27_io/basic_istringstream/str/char/2.cc: Likewise.
1371         * testsuite/27_io/basic_istringstream/str/wchar_t/2.cc:
1372         Likewise.
1373         * testsuite/27_io/basic_istringstream/view/char/1.cc: Likewise.
1374         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
1375         Likewise.
1376         * testsuite/27_io/basic_ostream/emit/1.cc: Likewise.
1377         * testsuite/27_io/basic_ostream/inserters_character/char/deleted.cc:
1378         Likewise.
1379         * testsuite/27_io/basic_ostream/inserters_character/wchar_t/deleted.cc:
1380         Likewise.
1381         * testsuite/27_io/basic_ostringstream/cons/char/1.cc: Likewise.
1382         * testsuite/27_io/basic_ostringstream/cons/wchar_t/1.cc:
1383         Likewise.
1384         * testsuite/27_io/basic_ostringstream/str/char/3.cc: Likewise.
1385         * testsuite/27_io/basic_ostringstream/str/wchar_t/3.cc:
1386         Likewise.
1387         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
1388         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
1389         Likewise.
1390         * testsuite/27_io/basic_stringbuf/cons/char/2.cc: Likewise.
1391         * testsuite/27_io/basic_stringbuf/cons/wchar_t/2.cc: Likewise.
1392         * testsuite/27_io/basic_stringbuf/str/char/4.cc: Likewise.
1393         * testsuite/27_io/basic_stringbuf/str/wchar_t/4.cc: Likewise.
1394         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
1395         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
1396         * testsuite/27_io/basic_stringstream/cons/char/1.cc: Likewise.
1397         * testsuite/27_io/basic_stringstream/cons/char/97719.cc:
1398         Likewise.
1399         * testsuite/27_io/basic_stringstream/cons/wchar_t/1.cc:
1400         Likewise.
1401         * testsuite/27_io/basic_stringstream/str/char/5.cc: Likewise.
1402         * testsuite/27_io/basic_stringstream/str/wchar_t/5.cc.cc:
1403         Likewise.
1404         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
1405         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
1406         Likewise.
1407         * testsuite/27_io/basic_syncbuf/1.cc: Likewise.
1408         * testsuite/27_io/basic_syncbuf/2.cc: Likewise.
1409         * testsuite/27_io/basic_syncbuf/basic_ops/1.cc: Likewise.
1410         * testsuite/27_io/basic_syncbuf/requirements/types.cc: Likewise.
1411         * testsuite/27_io/basic_syncbuf/sync_ops/1.cc: Likewise.
1412         * testsuite/27_io/basic_syncstream/1.cc: Likewise.
1413         * testsuite/27_io/basic_syncstream/2.cc: Likewise.
1414         * testsuite/27_io/basic_syncstream/basic_ops/1.cc: Likewise.
1415         * testsuite/27_io/basic_syncstream/requirements/types.cc:
1416         Likewise.
1417         * testsuite/27_io/filesystem/iterators/106201.cc: Likewise.
1418         * testsuite/27_io/filesystem/iterators/lwg3719.cc: Likewise.
1419         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc:
1420         Likewise.
1421         * testsuite/27_io/filesystem/path/nonmember/cmp_c++20.cc:
1422         Likewise.
1423
1424 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1425
1426         * testsuite/26_numerics/accumulate/constexpr.cc: Remove
1427         dg-options -std=gnu++2a.
1428         * testsuite/26_numerics/accumulate/lwg2055.cc: Likewise.
1429         * testsuite/26_numerics/adjacent_difference/constexpr.cc:
1430         Likewise.
1431         * testsuite/26_numerics/bit/bit.cast/105027.cc: Likewise.
1432         * testsuite/26_numerics/bit/bit.cast/bit_cast.cc: Likewise.
1433         * testsuite/26_numerics/bit/bit.cast/version.cc: Likewise.
1434         * testsuite/26_numerics/bit/bit.count/countl_one.cc: Likewise.
1435         * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc:
1436         Likewise.
1437         * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: Likewise.
1438         * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: Likewise.
1439         * testsuite/26_numerics/bit/bit.pow.two/lwg3656.cc: Likewise.
1440         * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
1441         * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
1442         * testsuite/26_numerics/bit/header-2.cc: Likewise.
1443         * testsuite/26_numerics/bit/header.cc: Likewise.
1444         * testsuite/26_numerics/complex/1.cc: Likewise.
1445         * testsuite/26_numerics/complex/2.cc: Likewise.
1446         * testsuite/26_numerics/complex/comparison_operators/more_constexpr.cc:
1447         Likewise.
1448         * testsuite/26_numerics/complex/operators/more_constexpr.cc:
1449         Likewise.
1450         * testsuite/26_numerics/complex/requirements/more_constexpr.cc:
1451         Likewise.
1452         * testsuite/26_numerics/complex/value_operations/more_constexpr.cc:
1453         Likewise.
1454         * testsuite/26_numerics/endian/1.cc: Likewise.
1455         * testsuite/26_numerics/endian/2.cc: Likewise.
1456         * testsuite/26_numerics/endian/3.cc: Likewise.
1457         * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
1458         * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
1459         * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
1460         * testsuite/26_numerics/inner_product/lwg2055.cc: Likewise.
1461         * testsuite/26_numerics/iota/constexpr.cc: Likewise.
1462         * testsuite/26_numerics/lerp/1.cc: Likewise.
1463         * testsuite/26_numerics/lerp/constexpr.cc: Likewise.
1464         * testsuite/26_numerics/lerp/version.cc: Likewise.
1465         * testsuite/26_numerics/midpoint/floating.cc: Likewise.
1466         * testsuite/26_numerics/midpoint/integral.cc: Likewise.
1467         * testsuite/26_numerics/midpoint/pointer.cc: Likewise.
1468         * testsuite/26_numerics/midpoint/pointer_neg.cc: Likewise.
1469         * testsuite/26_numerics/midpoint/version.cc: Likewise.
1470         * testsuite/26_numerics/numbers/1.cc: Likewise.
1471         * testsuite/26_numerics/numbers/2.cc: Likewise.
1472         * testsuite/26_numerics/numbers/3.cc: Likewise.
1473         * testsuite/26_numerics/numbers/float128.cc: Likewise.
1474         * testsuite/26_numerics/numbers/nonfloat_neg.cc: Likewise.
1475         * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
1476         * testsuite/26_numerics/partial_sum/lwg2055.cc: Likewise.
1477         * testsuite/26_numerics/random/concept.cc: Likewise.
1478         * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
1479         * testsuite/26_numerics/slice/compare.cc: Likewise.
1480         * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc:
1481         Likewise.
1482         * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc:
1483         Likewise.
1484         * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
1485
1486 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1487
1488         * testsuite/24_iterators/aliases.cc: Remove dg-options
1489         -std=gnu++2a.
1490         * testsuite/24_iterators/associated_types/incrementable.traits.cc:
1491         Likewise.
1492         * testsuite/24_iterators/associated_types/iterator.traits.cc:
1493         Likewise.
1494         * testsuite/24_iterators/associated_types/readable.traits.cc:
1495         Likewise.
1496         * testsuite/24_iterators/back_insert_iterator/constexpr.cc:
1497         Likewise.
1498         * testsuite/24_iterators/back_insert_iterator/pr93884.cc:
1499         Likewise.
1500         * testsuite/24_iterators/bidirectional/concept.cc: Likewise.
1501         * testsuite/24_iterators/common_iterator/1.cc: Likewise.
1502         * testsuite/24_iterators/common_iterator/100823.cc: Likewise.
1503         * testsuite/24_iterators/common_iterator/2.cc: Likewise.
1504         * testsuite/24_iterators/contiguous/concept.cc: Likewise.
1505         * testsuite/24_iterators/contiguous/tag.cc: Likewise.
1506         * testsuite/24_iterators/counted_iterator/1.cc: Likewise.
1507         * testsuite/24_iterators/counted_iterator/lwg3389.cc: Likewise.
1508         * testsuite/24_iterators/counted_iterator/lwg3643.cc: Likewise.
1509         * testsuite/24_iterators/customization_points/92894.cc:
1510         Likewise.
1511         * testsuite/24_iterators/customization_points/iter_move.cc:
1512         Likewise.
1513         * testsuite/24_iterators/customization_points/iter_swap.cc:
1514         Likewise.
1515         * testsuite/24_iterators/customization_points/lwg3420.cc:
1516         Likewise.
1517         * testsuite/24_iterators/forward/concept.cc: Likewise.
1518         * testsuite/24_iterators/front_insert_iterator/constexpr.cc:
1519         Likewise.
1520         * testsuite/24_iterators/front_insert_iterator/pr93884.cc:
1521         Likewise.
1522         * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
1523         Likewise.
1524         * testsuite/24_iterators/indirect_callable/92894.cc: Likewise.
1525         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
1526         Likewise.
1527         * testsuite/24_iterators/indirect_callable/projected.cc:
1528         Likewise.
1529         * testsuite/24_iterators/input/concept.cc: Likewise.
1530         * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
1531         * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
1532         Likewise.
1533         * testsuite/24_iterators/istream_iterator/sentinel.cc: Likewise.
1534         * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
1535         Likewise.
1536         * testsuite/24_iterators/istreambuf_iterator/sentinel.cc:
1537         Likewise.
1538         * testsuite/24_iterators/move_iterator/cust.cc: Likewise.
1539         * testsuite/24_iterators/move_iterator/dr3435.cc: Likewise.
1540         * testsuite/24_iterators/move_iterator/input_iterator.cc:
1541         Likewise.
1542         * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
1543         * testsuite/24_iterators/move_iterator/lwg3391.cc: Likewise.
1544         * testsuite/24_iterators/move_iterator/move_only.cc: Likewise.
1545         * testsuite/24_iterators/move_iterator/p2520r0.cc: Likewise.
1546         * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
1547         Likewise.
1548         * testsuite/24_iterators/move_iterator/sentinel.cc: Likewise.
1549         * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: Likewise.
1550         * testsuite/24_iterators/output/concept.cc: Likewise.
1551         * testsuite/24_iterators/random_access/concept.cc: Likewise.
1552         * testsuite/24_iterators/range_access/range_access_cpp20.cc:
1553         Likewise.
1554         * testsuite/24_iterators/range_access/range_access_cpp20_neg.cc:
1555         Likewise.
1556         * testsuite/24_iterators/range_operations/100768.cc: Likewise.
1557         * testsuite/24_iterators/range_operations/advance.cc: Likewise.
1558         * testsuite/24_iterators/range_operations/advance_overflow.cc:
1559         Likewise.
1560         * testsuite/24_iterators/range_operations/distance.cc: Likewise.
1561         * testsuite/24_iterators/range_operations/lwg3392.cc: Likewise.
1562         * testsuite/24_iterators/range_operations/next.cc: Likewise.
1563         * testsuite/24_iterators/range_operations/prev.cc: Likewise.
1564         * testsuite/24_iterators/reverse_iterator/cust.cc: Likewise.
1565         * testsuite/24_iterators/reverse_iterator/dr3435.cc: Likewise.
1566         * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
1567         Likewise.
1568
1569 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1570
1571         * testsuite/23_containers/array/comparison_operators/96851.cc:
1572         Remove dg-options -std=gnu++2a.
1573         * testsuite/23_containers/array/comparison_operators/constexpr.cc:
1574         Likewise.
1575         * testsuite/23_containers/array/creation/1.cc: Likewise.
1576         * testsuite/23_containers/array/creation/110167.cc: Likewise.
1577         * testsuite/23_containers/array/creation/2.cc: Likewise.
1578         * testsuite/23_containers/array/creation/3_neg.cc: Likewise.
1579         * testsuite/23_containers/array/requirements/constexpr_fill.cc:
1580         Likewise.
1581         * testsuite/23_containers/array/requirements/constexpr_swap.cc:
1582         Likewise.
1583         * testsuite/23_containers/deque/48101-3_neg.cc: Likewise.
1584         * testsuite/23_containers/deque/erasure.cc: Likewise.
1585         * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
1586         Likewise.
1587         * testsuite/23_containers/deque/operators/cmp_c++20.cc:
1588         Likewise.
1589         * testsuite/23_containers/forward_list/48101-3_neg.cc: Likewise.
1590         * testsuite/23_containers/forward_list/cmp_c++20.cc: Likewise.
1591         * testsuite/23_containers/forward_list/erasure.cc: Likewise.
1592         * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
1593         Likewise.
1594         * testsuite/23_containers/forward_list/operations/remove_cxx20_return.cc:
1595         Likewise.
1596         * testsuite/23_containers/forward_list/operations/unique_cxx20_return.cc:
1597         Likewise.
1598         * testsuite/23_containers/list/48101-3_neg.cc: Likewise.
1599         * testsuite/23_containers/list/cmp_c++20.cc: Likewise.
1600         * testsuite/23_containers/list/erasure.cc: Likewise.
1601         * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
1602         Likewise.
1603         * testsuite/23_containers/list/operations/remove_cxx20_return.cc:
1604         Likewise.
1605         * testsuite/23_containers/list/operations/unique_cxx20_return.cc:
1606         Likewise.
1607         * testsuite/23_containers/map/48101-3_neg.cc: Likewise.
1608         * testsuite/23_containers/map/erasure.cc: Likewise.
1609         * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
1610         Likewise.
1611         * testsuite/23_containers/map/operations/contains.cc: Likewise.
1612         * testsuite/23_containers/map/operators/cmp_c++20.cc: Likewise.
1613         * testsuite/23_containers/multimap/48101-3_neg.cc: Likewise.
1614         * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
1615         Likewise.
1616         * testsuite/23_containers/multimap/operations/contains.cc:
1617         Likewise.
1618         * testsuite/23_containers/multimap/operators/cmp_c++20.cc:
1619         Likewise.
1620         * testsuite/23_containers/multiset/48101-3_neg.cc: Likewise.
1621         * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
1622         Likewise.
1623         * testsuite/23_containers/multiset/operations/contains.cc:
1624         Likewise.
1625         * testsuite/23_containers/multiset/operators/cmp_c++20.cc:
1626         Likewise.
1627         * testsuite/23_containers/priority_queue/92878_92947.cc:
1628         Likewise.
1629         * testsuite/23_containers/queue/92878_92947.cc: Likewise.
1630         * testsuite/23_containers/queue/cmp_c++20.cc: Likewise.
1631         * testsuite/23_containers/set/48101-3_neg.cc: Likewise.
1632         * testsuite/23_containers/set/erasure.cc: Likewise.
1633         * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
1634         Likewise.
1635         * testsuite/23_containers/set/operations/contains.cc: Likewise.
1636         * testsuite/23_containers/set/operators/cmp_c++20.cc: Likewise.
1637         * testsuite/23_containers/span/1.cc: Likewise.
1638         * testsuite/23_containers/span/101411.cc: Likewise.
1639         * testsuite/23_containers/span/2.cc: Likewise.
1640         * testsuite/23_containers/span/deduction.cc: Likewise.
1641         * testsuite/23_containers/span/explicit.cc: Likewise.
1642         * testsuite/23_containers/span/layout_compat.cc: Likewise.
1643         * testsuite/23_containers/span/lwg3255.cc: Likewise.
1644         * testsuite/23_containers/span/nothrow_cons.cc: Likewise.
1645         * testsuite/23_containers/span/trivially_copyable.cc: Likewise.
1646         * testsuite/23_containers/stack/92878_92947.cc: Likewise.
1647         * testsuite/23_containers/stack/cmp_c++20.cc: Likewise.
1648         * testsuite/23_containers/unordered_map/48101-3_neg.cc:
1649         Likewise.
1650         * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
1651         * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
1652         Likewise.
1653         * testsuite/23_containers/unordered_map/operations/1.cc:
1654         Likewise.
1655         * testsuite/23_containers/unordered_map/operations/contains.cc:
1656         Likewise.
1657         * testsuite/23_containers/unordered_multimap/48101-3_neg.cc:
1658         Likewise.
1659         * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
1660         Likewise.
1661         * testsuite/23_containers/unordered_multimap/operations/1.cc:
1662         Likewise.
1663         * testsuite/23_containers/unordered_multimap/operations/contains.cc:
1664         Likewise.
1665         * testsuite/23_containers/unordered_multiset/48101-3_neg.cc:
1666         Likewise.
1667         * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
1668         Likewise.
1669         * testsuite/23_containers/unordered_multiset/operations/1.cc:
1670         Likewise.
1671         * testsuite/23_containers/unordered_multiset/operations/contains.cc:
1672         Likewise.
1673         * testsuite/23_containers/unordered_set/48101-3_neg.cc:
1674         Likewise.
1675         * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
1676         * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
1677         Likewise.
1678         * testsuite/23_containers/unordered_set/operations/1.cc:
1679         Likewise.
1680         * testsuite/23_containers/unordered_set/operations/contains.cc:
1681         Likewise.
1682         * testsuite/23_containers/vector/48101-3_neg.cc: Likewise.
1683         * testsuite/23_containers/vector/bool/capacity/constexpr.cc:
1684         Likewise.
1685         * testsuite/23_containers/vector/bool/cmp_c++20.cc: Likewise.
1686         * testsuite/23_containers/vector/bool/cons/constexpr.cc:
1687         Likewise.
1688         * testsuite/23_containers/vector/bool/element_access/constexpr.cc:
1689         Likewise.
1690         * testsuite/23_containers/vector/bool/iterator_c++20.cc:
1691         Likewise.
1692         * testsuite/23_containers/vector/bool/modifiers/assign/constexpr.cc:
1693         Likewise.
1694         * testsuite/23_containers/vector/bool/modifiers/constexpr.cc:
1695         Likewise.
1696         * testsuite/23_containers/vector/bool/modifiers/swap/constexpr.cc:
1697         Likewise.
1698         * testsuite/23_containers/vector/capacity/constexpr.cc:
1699         Likewise.
1700         * testsuite/23_containers/vector/cmp_c++20.cc: Likewise.
1701         * testsuite/23_containers/vector/cons/constexpr.cc: Likewise.
1702         * testsuite/23_containers/vector/data_access/constexpr.cc:
1703         Likewise.
1704         * testsuite/23_containers/vector/element_access/constexpr.cc:
1705         Likewise.
1706         * testsuite/23_containers/vector/erasure.cc: Likewise.
1707         * testsuite/23_containers/vector/modifiers/assign/constexpr.cc:
1708         Likewise.
1709         * testsuite/23_containers/vector/modifiers/constexpr.cc:
1710         Likewise.
1711         * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
1712         Likewise.
1713         * testsuite/23_containers/vector/modifiers/swap/constexpr.cc:
1714         Likewise.
1715         * testsuite/23_containers/vector/requirements/version.cc:
1716         Likewise.
1717
1718 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1719
1720         * testsuite/21_strings/basic_string/cons/char/105995.cc: Remove
1721         dg-options -std=gnu++20.
1722         * testsuite/21_strings/basic_string/cons/char/constexpr.cc:
1723         Likewise.
1724         * testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc:
1725         Likewise.
1726         * testsuite/21_strings/basic_string/erasure.cc: Likewise.
1727         * testsuite/21_strings/basic_string/hash/hash_char8_t.cc:
1728         Likewise.
1729         * testsuite/21_strings/basic_string/literals/constexpr.cc:
1730         Likewise.
1731         * testsuite/21_strings/basic_string/modifiers/constexpr.cc:
1732         Likewise.
1733         * testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc:
1734         Likewise.
1735         * testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc:
1736         Likewise.
1737         * testsuite/21_strings/basic_string/operations/ends_with/char.cc:
1738         Likewise.
1739         * testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc:
1740         Likewise.
1741         * testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc:
1742         Likewise.
1743         * testsuite/21_strings/basic_string/operations/starts_with/char.cc:
1744         Likewise.
1745         * testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc:
1746         Likewise.
1747         * testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc:
1748         Likewise.
1749         * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc:
1750         Likewise.
1751         * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
1752         Likewise.
1753         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
1754         Likewise.
1755         * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
1756         Likewise.
1757         * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc:
1758         Likewise.
1759         * testsuite/21_strings/basic_string_view/operations/ends_with/char.cc:
1760         Likewise.
1761         * testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc:
1762         Likewise.
1763         * testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc:
1764         Likewise.
1765         * testsuite/21_strings/basic_string_view/operations/starts_with/char.cc:
1766         Likewise.
1767         * testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc:
1768         Likewise.
1769         * testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc:
1770         Likewise.
1771         * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
1772         Likewise.
1773         * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
1774         Likewise.
1775         * testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc:
1776         Likewise.
1777         * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
1778         Likewise.
1779
1780 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1781
1782         * testsuite/20_util/allocator/105975.cc: Remove dg-options
1783         -std=gnu++2a.
1784         * testsuite/20_util/allocator/rebind_c++20.cc: Likewise.
1785         * testsuite/20_util/allocator/requirements/constexpr.cc:
1786         Likewise.
1787         * testsuite/20_util/allocator/requirements/typedefs_c++20.cc:
1788         Likewise.
1789         * testsuite/20_util/allocator_traits/header-2.cc: Likewise.
1790         * testsuite/20_util/allocator_traits/header.cc: Likewise.
1791         * testsuite/20_util/allocator_traits/members/92878_92947.cc:
1792         Likewise.
1793         * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
1794         * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
1795         * testsuite/20_util/assume_aligned/1.cc: Likewise.
1796         * testsuite/20_util/assume_aligned/2_neg.cc: Likewise.
1797         * testsuite/20_util/assume_aligned/3.cc: Likewise.
1798         * testsuite/20_util/assume_aligned/97132.cc: Likewise.
1799         * testsuite/20_util/bind/constexpr.cc: Likewise.
1800         * testsuite/20_util/bitset/operations/96303.cc: Likewise.
1801         * testsuite/20_util/common_reference/100894.cc: Likewise.
1802         * testsuite/20_util/common_reference/requirements/alias_decl.cc:
1803         Likewise.
1804         * testsuite/20_util/common_reference/requirements/explicit_instantiation.cc:
1805         Likewise.
1806         * testsuite/20_util/common_reference/requirements/typedefs.cc:
1807         Likewise.
1808         * testsuite/20_util/duration/comparison_operators/three_way.cc:
1809         Likewise.
1810         * testsuite/20_util/exchange/constexpr.cc: Likewise.
1811         * testsuite/20_util/exchange/noexcept.cc: Likewise.
1812         * testsuite/20_util/from_chars/1_c++20_neg.cc: Likewise.
1813         * testsuite/20_util/from_chars/compare.cc: Likewise.
1814         * testsuite/20_util/function_objects/bind_front/1.cc: Likewise.
1815         * testsuite/20_util/function_objects/bind_front/107784.cc:
1816         Likewise.
1817         * testsuite/20_util/function_objects/bind_front/111327.cc:
1818         Likewise.
1819         * testsuite/20_util/function_objects/bind_front/2.cc: Likewise.
1820         * testsuite/20_util/function_objects/bind_front/97101.cc:
1821         Likewise.
1822         * testsuite/20_util/function_objects/bind_front/constexpr.cc:
1823         Likewise.
1824         * testsuite/20_util/function_objects/constexpr_searcher.cc:
1825         Likewise.
1826         * testsuite/20_util/function_objects/identity/1.cc: Likewise.
1827         * testsuite/20_util/function_objects/invoke/constexpr.cc:
1828         Likewise.
1829         * testsuite/20_util/function_objects/mem_fn/constexpr.cc:
1830         Likewise.
1831         * testsuite/20_util/function_objects/not_fn/constexpr.cc:
1832         Likewise.
1833         * testsuite/20_util/integer_comparisons/1.cc: Likewise.
1834         * testsuite/20_util/integer_comparisons/2.cc: Likewise.
1835         * testsuite/20_util/integer_comparisons/equal.cc: Likewise.
1836         * testsuite/20_util/integer_comparisons/equal_neg.cc: Likewise.
1837         * testsuite/20_util/integer_comparisons/greater.cc: Likewise.
1838         * testsuite/20_util/integer_comparisons/greater_equal.cc:
1839         Likewise.
1840         * testsuite/20_util/integer_comparisons/greater_equal_neg.cc:
1841         Likewise.
1842         * testsuite/20_util/integer_comparisons/greater_neg.cc:
1843         Likewise.
1844         * testsuite/20_util/integer_comparisons/in_range.cc: Likewise.
1845         * testsuite/20_util/integer_comparisons/in_range_neg.cc:
1846         Likewise.
1847         * testsuite/20_util/integer_comparisons/less.cc: Likewise.
1848         * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
1849         * testsuite/20_util/integer_comparisons/less_equal_neg.cc:
1850         Likewise.
1851         * testsuite/20_util/integer_comparisons/less_neg.cc: Likewise.
1852         * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
1853         * testsuite/20_util/integer_comparisons/not_equal_neg.cc:
1854         Likewise.
1855         * testsuite/20_util/is_bounded_array/requirements/explicit_instantiation.cc:
1856         Likewise.
1857         * testsuite/20_util/is_bounded_array/requirements/typedefs.cc:
1858         Likewise.
1859         * testsuite/20_util/is_bounded_array/value.cc: Likewise.
1860         * testsuite/20_util/is_constant_evaluated/1.cc: Likewise.
1861         * testsuite/20_util/is_constant_evaluated/noexcept.cc: Likewise.
1862         * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
1863         * testsuite/20_util/is_layout_compatible/is_corresponding_member.cc:
1864         Likewise.
1865         * testsuite/20_util/is_layout_compatible/value.cc: Likewise.
1866         * testsuite/20_util/is_layout_compatible/version.cc: Likewise.
1867         * testsuite/20_util/is_nothrow_constructible/value_c++20.cc:
1868         Likewise.
1869         * testsuite/20_util/is_nothrow_convertible/requirements/explicit_instantiation.cc:
1870         Likewise.
1871         * testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
1872         Likewise.
1873         * testsuite/20_util/is_nothrow_convertible/value.cc: Likewise.
1874         * testsuite/20_util/is_pod/deprecated-2a.cc: Likewise.
1875         * testsuite/20_util/is_pointer_interconvertible/value.cc:
1876         Likewise.
1877         * testsuite/20_util/is_pointer_interconvertible/version.cc:
1878         Likewise.
1879         * testsuite/20_util/is_pointer_interconvertible/with_class.cc:
1880         Likewise.
1881         * testsuite/20_util/is_unbounded_array/requirements/explicit_instantiation.cc:
1882         Likewise.
1883         * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc:
1884         Likewise.
1885         * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
1886         * testsuite/20_util/optional/assignment/92878_92947.cc:
1887         Likewise.
1888         * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
1889         * testsuite/20_util/optional/constexpr/assign.cc: Likewise.
1890         * testsuite/20_util/optional/constexpr/cons/conv.cc: Likewise.
1891         * testsuite/20_util/optional/constexpr/modifiers.cc: Likewise.
1892         * testsuite/20_util/optional/constexpr/swap.cc: Likewise.
1893         * testsuite/20_util/optional/relops/96269.cc: Likewise.
1894         * testsuite/20_util/optional/relops/three_way.cc: Likewise.
1895         * testsuite/20_util/pair/comparison_operators/constexpr_c++20.cc:
1896         Likewise.
1897         * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
1898         * testsuite/20_util/pair/constexpr_assign.cc: Likewise.
1899         * testsuite/20_util/pair/constexpr_swap.cc: Likewise.
1900         * testsuite/20_util/pair/requirements/structural.cc: Likewise.
1901         * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc:
1902         Likewise.
1903         * testsuite/20_util/polymorphic_allocator/allocate_object.cc:
1904         Likewise.
1905         * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc:
1906         Likewise.
1907         * testsuite/20_util/polymorphic_allocator/lwg3237.cc: Likewise.
1908         * testsuite/20_util/reference_wrapper/constexpr.cc: Likewise.
1909         * testsuite/20_util/reference_wrapper/incomplete.cc: Likewise.
1910         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc:
1911         Likewise.
1912         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
1913         Likewise.
1914         * testsuite/20_util/remove_cvref/value.cc: Likewise.
1915         * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc:
1916         Likewise.
1917         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
1918         Likewise.
1919         * testsuite/20_util/shared_ptr/casts/rval.cc: Likewise.
1920         * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc:
1921         Likewise.
1922         * testsuite/20_util/shared_ptr/cons/alias-rval.cc: Likewise.
1923         * testsuite/20_util/shared_ptr/creation/92878_92947.cc:
1924         Likewise.
1925         * testsuite/20_util/shared_ptr/creation/array.cc: Likewise.
1926         * testsuite/20_util/shared_ptr/creation/overwrite.cc: Likewise.
1927         * testsuite/20_util/shared_ptr/creation/version.cc: Likewise.
1928         * testsuite/20_util/time_point/4.cc: Likewise.
1929         * testsuite/20_util/time_point/comparison_operators/three_way.cc:
1930         Likewise.
1931         * testsuite/20_util/to_address/1.cc: Likewise.
1932         * testsuite/20_util/to_address/1_neg.cc: Likewise.
1933         * testsuite/20_util/to_address/debug.cc: Likewise.
1934         * testsuite/20_util/to_address/lwg3545.cc: Likewise.
1935         * testsuite/20_util/to_chars/compare.cc: Likewise.
1936         * testsuite/20_util/tuple/comparison_operators/three_way.cc:
1937         Likewise.
1938         * testsuite/20_util/tuple/cons/102270.cc: Likewise.
1939         * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc:
1940         Likewise.
1941         * testsuite/20_util/tuple/constexpr_swap.cc: Likewise.
1942         * testsuite/20_util/type_identity/requirements/alias_decl.cc:
1943         Likewise.
1944         * testsuite/20_util/type_identity/requirements/explicit_instantiation.cc:
1945         Likewise.
1946         * testsuite/20_util/type_identity/requirements/typedefs.cc:
1947         Likewise.
1948         * testsuite/20_util/typeindex/comparison_operators_c++20.cc:
1949         Likewise.
1950         * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc:
1951         Likewise.
1952         * testsuite/20_util/unique_ptr/creation/92878_92947.cc:
1953         Likewise.
1954         * testsuite/20_util/unique_ptr/creation/for_overwrite.cc:
1955         Likewise.
1956         * testsuite/20_util/unique_ptr/creation/for_overwrite__neg.cc:
1957         Likewise.
1958         * testsuite/20_util/unique_ptr/io/lwg2948.cc: Likewise.
1959         * testsuite/20_util/unwrap_reference/1.cc: Likewise.
1960         * testsuite/20_util/unwrap_reference/2.cc: Likewise.
1961         * testsuite/20_util/unwrap_reference/3.cc: Likewise.
1962         * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
1963         * testsuite/20_util/uses_allocator/lwg3527.cc: Likewise.
1964         * testsuite/20_util/uses_allocator/make_obj.cc: Likewise.
1965         * testsuite/20_util/uses_allocator/uninitialized_construct.cc:
1966         Likewise.
1967         * testsuite/20_util/variant/92878_92947.cc: Likewise.
1968         * testsuite/20_util/variant/95915.cc: Likewise.
1969         * testsuite/20_util/variant/constexpr.cc: Likewise.
1970         * testsuite/20_util/variant/relops/three_way.cc: Likewise.
1971         * testsuite/20_util/variant/visit_neg.cc: Likewise.
1972         * testsuite/20_util/variant/visit_r.cc: Likewise.
1973         * testsuite/20_util/weak_ptr/atomic_weak_ptr.cc: Likewise.
1974
1975 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1976
1977         * testsuite/18_support/comparisons/algorithms/fallback.cc:
1978         Remove dg-options -std=gnu++2a.
1979         * testsuite/18_support/comparisons/algorithms/partial_order.cc:
1980         Likewise.
1981         * testsuite/18_support/comparisons/algorithms/strong_order.cc:
1982         Likewise.
1983         * testsuite/18_support/comparisons/algorithms/strong_order_floats.cc:
1984         Likewise.
1985         * testsuite/18_support/comparisons/algorithms/weak_order.cc:
1986         Likewise.
1987         * testsuite/18_support/comparisons/categories/94565.cc:
1988         Likewise.
1989         * testsuite/18_support/comparisons/categories/partialord.cc:
1990         Likewise.
1991         * testsuite/18_support/comparisons/categories/strongord.cc:
1992         Likewise.
1993         * testsuite/18_support/comparisons/categories/weakord.cc:
1994         Likewise.
1995         * testsuite/18_support/comparisons/categories/zero_neg.cc:
1996         Likewise.
1997         * testsuite/18_support/comparisons/common/1.cc: Likewise.
1998         * testsuite/18_support/comparisons/object/93479.cc: Likewise.
1999         * testsuite/18_support/comparisons/object/lwg3530.cc: Likewise.
2000
2001 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2002
2003         * testsuite/29_atomics/atomic/compare_exchange_padding.cc:
2004         Remove dg-options -std=gnu++2a.
2005         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
2006         * testsuite/29_atomics/atomic/lock_free_aliases.cc: Likewise.
2007         * testsuite/29_atomics/atomic/requirements/types_neg.cc:
2008         Likewise.
2009         * testsuite/29_atomics/atomic/wait_notify/1.cc: Likewise.
2010         * testsuite/29_atomics/atomic/wait_notify/100334.cc: Likewise.
2011         * testsuite/29_atomics/atomic/wait_notify/102994.cc: Likewise.
2012         * testsuite/29_atomics/atomic/wait_notify/2.cc: Likewise.
2013         * testsuite/29_atomics/atomic/wait_notify/bool.cc: Likewise.
2014         * testsuite/29_atomics/atomic/wait_notify/generic.cc: Likewise.
2015         * testsuite/29_atomics/atomic/wait_notify/pointers.cc: Likewise.
2016         * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Likewise.
2017         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Likewise.
2018         * testsuite/29_atomics/atomic_flag/test/implicit.cc: Likewise.
2019         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc: Likewise.
2020         * testsuite/29_atomics/atomic_float/1.cc: Likewise.
2021         * testsuite/29_atomics/atomic_float/95282.cc: Likewise.
2022         * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
2023         * testsuite/29_atomics/atomic_float/value_init.cc: Likewise.
2024         * testsuite/29_atomics/atomic_float/wait_notify.cc: Likewise.
2025         * testsuite/29_atomics/atomic_integral/cons/value_init.cc:
2026         Likewise.
2027         * testsuite/29_atomics/atomic_integral/wait_notify.cc: Likewise.
2028         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc:
2029         Likewise.
2030         * testsuite/29_atomics/atomic_ref/deduction.cc: Likewise.
2031         * testsuite/29_atomics/atomic_ref/float.cc: Likewise.
2032         * testsuite/29_atomics/atomic_ref/generic.cc: Likewise.
2033         * testsuite/29_atomics/atomic_ref/integral.cc: Likewise.
2034         * testsuite/29_atomics/atomic_ref/pointer.cc: Likewise.
2035         * testsuite/29_atomics/atomic_ref/requirements.cc: Likewise.
2036         * testsuite/29_atomics/headers/atomic/types_std_c++20.cc:
2037         Likewise.
2038         * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc:
2039         Likewise.
2040         * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc:
2041         Likewise.
2042         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc:
2043         Likewise.
2044
2045 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2046
2047         * testsuite/27_io/basic_filebuf/native_handle/char/1.cc: New test.
2048         * testsuite/27_io/basic_filebuf/native_handle/wchar_t/1.cc: New test.
2049
2050 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2051
2052         * acinclude.m4 (GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES): New
2053         macro.
2054         * config.h.in: Regenerate.
2055         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export new
2056         basic_filebuf members.
2057         * config/io/basic_file_stdio.cc (__basic_file::native_handle):
2058         Define new function.
2059         * config/io/basic_file_stdio.h (__basic_file::native_handle):
2060         Declare new function.
2061         * configure: Regenerate.
2062         * configure.ac: Use GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES.
2063         * include/bits/version.def (fstream_native_handles): New macro.
2064         * include/bits/version.h: Regenerate.
2065         * include/std/fstream (basic_filebuf::native_handle)
2066         (basic_fstream::native_handle, basic_ifstream::native_handle)
2067         (basic_ofstream::native_handle): New functions.
2068         * src/c++11/Makefile.am: Move compilation of basic_file.cc,
2069         locale_init.cc and localename.cc to here.
2070         * src/c++11/Makefile.in: Regenerate.
2071         * src/c++98/locale_init.cc: Moved to...
2072         * src/c++11/locale_init.cc: ...here.
2073         * src/c++98/localename.cc: Moved to...
2074         * src/c++11/localename.cc: ...here.
2075         * src/c++98/Makefile.am: Remove basic_file.cc, locale_init.cc
2076         and localename.cc from here.
2077         * src/c++98/Makefile.in: Regenerate.
2078         * testsuite/27_io/basic_filebuf/native_handle/version.cc: New test.
2079         * testsuite/27_io/basic_fstream/native_handle/char/1.cc: New test.
2080         * testsuite/27_io/basic_fstream/native_handle/wchar_t/1.cc: New test.
2081         * testsuite/27_io/basic_ifstream/native_handle/char/1.cc: New test.
2082         * testsuite/27_io/basic_ifstream/native_handle/wchar_t/1.cc: New test.
2083         * testsuite/27_io/basic_ofstream/native_handle/char/1.cc: New test.
2084         * testsuite/27_io/basic_ofstream/native_handle/wchar_t/1.cc: New test.
2085
2086 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2087
2088         * testsuite/libstdc++-dg/conformance.exp: Add log line when
2089         using testsuite_files.
2090
2091 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2092
2093         * testsuite/20_util/shared_ptr/atomic/3.cc: Simplify dg
2094         directives.
2095         * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
2096         Likewise.
2097         * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc:
2098         Likewise.
2099         * testsuite/20_util/synchronized_pool_resource/allocate.cc:
2100         Likewise.
2101         * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
2102         Likewise.
2103         * testsuite/20_util/synchronized_pool_resource/cons.cc:
2104         Likewise.
2105         * testsuite/20_util/synchronized_pool_resource/cons_single.cc:
2106         Likewise.
2107         * testsuite/20_util/synchronized_pool_resource/is_equal.cc:
2108         Likewise.
2109         * testsuite/20_util/synchronized_pool_resource/multithreaded.cc:
2110         Likewise.
2111         * testsuite/20_util/synchronized_pool_resource/options.cc:
2112         Likewise.
2113         * testsuite/20_util/synchronized_pool_resource/release.cc:
2114         Likewise.
2115         * testsuite/20_util/synchronized_pool_resource/release_single.cc:
2116         Likewise.
2117         * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
2118         Likewise.
2119         * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
2120         Likewise.
2121         * testsuite/30_threads/stop_token/stop_callback/destroy.cc:
2122         Likewise.
2123
2124 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2125
2126         * testsuite/23_containers/span/back_assert_neg.cc: Remove
2127         dg-options and add effective target selector to dg-do. Add
2128         no_pch.
2129         * testsuite/23_containers/span/back_neg.cc: Likewise.
2130         * testsuite/23_containers/span/cons_1_assert_neg.cc: Likewise.
2131         * testsuite/23_containers/span/cons_2_assert_neg.cc: Likewise.
2132         * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
2133         * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
2134         * testsuite/23_containers/span/first_neg.cc: Likewise.
2135         * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
2136         * testsuite/23_containers/span/front_neg.cc: Likewise.
2137         * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
2138         * testsuite/23_containers/span/index_op_neg.cc: Likewise.
2139         * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
2140         * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
2141         * testsuite/23_containers/span/last_neg.cc: Likewise.
2142         * testsuite/23_containers/span/subspan_2_assert_neg.cc:
2143         Likewise.
2144         * testsuite/23_containers/span/subspan_3_assert_neg.cc:
2145         Likewise.
2146         * testsuite/23_containers/span/subspan_4_assert_neg.cc:
2147         Likewise.
2148         * testsuite/23_containers/span/subspan_5_assert_neg.cc:
2149         Likewise.
2150         * testsuite/23_containers/span/subspan_6_assert_neg.cc:
2151         Likewise.
2152         * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
2153         * testsuite/23_containers/span/subspan_neg.cc: Likewise.
2154         * testsuite/24_iterators/range_operations/advance_debug_neg.cc:
2155         Likewise.
2156
2157 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2158
2159         * testsuite/18_support/headers/limits/synopsis_cxx23.cc: Remove
2160         dg-options.
2161         * testsuite/18_support/headers/stdfloat/types_std.cc: Likewise.
2162         * testsuite/18_support/type_info/constexpr.cc: Likewise.
2163         * testsuite/19_diagnostics/stacktrace/current.cc: Likewise.
2164         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
2165         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
2166         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Likewise.
2167         * testsuite/19_diagnostics/stacktrace/version.cc: Likewise.
2168         * testsuite/20_util/aligned_storage/deprecated-2b.cc: Likewise.
2169         * testsuite/20_util/aligned_union/deprecated-2b.cc: Likewise.
2170         * testsuite/20_util/bitset/access/constexpr.cc: Likewise.
2171         * testsuite/20_util/bitset/cons/constexpr_c++23.cc: Likewise.
2172         * testsuite/20_util/bitset/count/constexpr.cc: Likewise.
2173         * testsuite/20_util/bitset/ext/constexpr.cc: Likewise.
2174         * testsuite/20_util/bitset/operations/constexpr_c++23.cc:
2175         Likewise.
2176         * testsuite/20_util/bitset/version.cc: Likewise.
2177         * testsuite/20_util/from_chars/8.cc: Likewise.
2178         * testsuite/20_util/from_chars/constexpr.cc: Likewise.
2179         * testsuite/20_util/function/cons/deduction_c++23.cc: Likewise.
2180         * testsuite/20_util/function_objects/invoke/4.cc: Likewise.
2181         * testsuite/20_util/function_objects/invoke/dangling_ref.cc:
2182         Likewise.
2183         * testsuite/20_util/is_scoped_enum/value.cc: Likewise.
2184         * testsuite/20_util/is_scoped_enum/version.cc: Likewise.
2185         * testsuite/20_util/move_only_function/call.cc: Likewise.
2186         * testsuite/20_util/move_only_function/cons.cc: Likewise.
2187         * testsuite/20_util/move_only_function/move.cc: Likewise.
2188         * testsuite/20_util/move_only_function/version.cc: Likewise.
2189         * testsuite/20_util/optional/monadic/and_then.cc: Likewise.
2190         * testsuite/20_util/optional/monadic/or_else.cc: Likewise.
2191         * testsuite/20_util/optional/monadic/or_else_neg.cc: Likewise.
2192         * testsuite/20_util/optional/monadic/pr109242.cc: Likewise.
2193         * testsuite/20_util/optional/monadic/transform.cc: Likewise.
2194         * testsuite/20_util/pair/p2321r2.cc: Likewise.
2195         * testsuite/20_util/reference_from_temporary/value.cc: Likewise.
2196         * testsuite/20_util/reference_from_temporary/value2.cc:
2197         Likewise.
2198         * testsuite/20_util/reference_from_temporary/version.cc:
2199         Likewise.
2200         * testsuite/20_util/to_chars/constexpr.cc: Likewise.
2201         * testsuite/20_util/to_chars/float128_c++23.cc: Likewise.
2202         * testsuite/20_util/to_chars/float16_c++23.cc: Likewise.
2203         * testsuite/20_util/to_chars/version.cc: Likewise.
2204         * testsuite/20_util/to_underlying/1.cc: Likewise.
2205         * testsuite/20_util/to_underlying/version.cc: Likewise.
2206         * testsuite/20_util/tuple/p2321r2.cc: Likewise.
2207         * testsuite/20_util/unique_ptr/assign/constexpr.cc: Likewise.
2208         * testsuite/20_util/unique_ptr/comparison/constexpr.cc:
2209         Likewise.
2210         * testsuite/20_util/unique_ptr/cons/constexpr_c++20.cc:
2211         Likewise.
2212         * testsuite/20_util/unique_ptr/creation/constexpr.cc: Likewise.
2213         * testsuite/20_util/unique_ptr/modifiers/constexpr.cc: Likewise.
2214         * testsuite/20_util/unique_ptr/specialized_algorithms/constexpr.cc: Likewise.
2215         * testsuite/20_util/unreachable/1.cc: Likewise.
2216         * testsuite/20_util/unreachable/version.cc: Likewise.
2217         * testsuite/20_util/uses_allocator/lwg3677.cc: Likewise.
2218         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc: Likewise.
2219         * testsuite/21_strings/basic_string/operations/contains/char.cc:
2220         Likewise.
2221         * testsuite/21_strings/basic_string/operations/contains/nonnull.cc: Likewise.
2222         * testsuite/21_strings/basic_string/operations/contains/wchar_t.cc: Likewise.
2223         * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc: Likewise.
2224         * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc: Likewise.
2225         * testsuite/21_strings/basic_string_view/operations/contains/char.cc: Likewise.
2226         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc: Likewise.
2227         * testsuite/21_strings/basic_string_view/operations/contains/nonnull.cc: Likewise.
2228         * testsuite/21_strings/basic_string_view/operations/contains/wchar_t.cc: Likewise.
2229         * testsuite/23_containers/queue/cons_from_iters.cc: Likewise.
2230         * testsuite/23_containers/stack/cons_from_iters.cc: Likewise.
2231         * testsuite/23_containers/vector/bool/element_access/1.cc:
2232         Likewise.
2233         * testsuite/24_iterators/const_iterator/1.cc: Likewise.
2234         * testsuite/25_algorithms/contains/1.cc: Likewise.
2235         * testsuite/25_algorithms/contains_subrange/1.cc: Likewise.
2236         * testsuite/25_algorithms/find_last/1.cc: Likewise.
2237         * testsuite/25_algorithms/find_last_if/1.cc: Likewise.
2238         * testsuite/25_algorithms/find_last_if_not/1.cc: Likewise.
2239         * testsuite/25_algorithms/fold_left/1.cc: Likewise.
2240         * testsuite/25_algorithms/fold_right/1.cc: Likewise.
2241         * testsuite/25_algorithms/iota/1.cc: Likewise.
2242         * testsuite/26_numerics/bit/bit.byteswap/byteswap.cc: Likewise.
2243         * testsuite/26_numerics/bit/bit.byteswap/version.cc: Likewise.
2244         * testsuite/26_numerics/complex/ext_c++23.cc: Likewise.
2245         * testsuite/26_numerics/headers/cmath/c99_classification_macros_c++23.cc: Likewise.
2246         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc:
2247         Likewise.
2248         * testsuite/26_numerics/headers/cmath/functions_std_c++23.cc:
2249         Likewise.
2250         * testsuite/26_numerics/headers/cmath/nextafter_c++23.cc:
2251         Likewise.
2252         * testsuite/26_numerics/numbers/4.cc: Likewise.
2253         * testsuite/27_io/basic_ostream/inserters_other/char/volatile_ptr.cc: Likewise.
2254         * testsuite/27_io/filesystem/path/native/conv_c++23.cc:
2255         Likewise.
2256         * testsuite/27_io/spanstream/1.cc: Likewise.
2257         * testsuite/27_io/spanstream/2.cc: Likewise.
2258         * testsuite/27_io/spanstream/version.cc: Likewise.
2259         * testsuite/29_atomics/atomic_float/requirements_cxx23.cc:
2260         Likewise.
2261         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
2262         Likewise.
2263         * testsuite/29_atomics/headers/stdatomic.h/version.cc: Likewise.
2264         * testsuite/30_threads/packaged_task/cons/deduction_c++23.cc:
2265         Likewise.
2266         * testsuite/experimental/filesystem/path/native/conv_c++23.cc:
2267         Likewise.
2268         * testsuite/std/ranges/adaptors/adjacent/1.cc: Likewise.
2269         * testsuite/std/ranges/adaptors/adjacent_transform/1.cc:
2270         Likewise.
2271         * testsuite/std/ranges/adaptors/as_const/1.cc: Likewise.
2272         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
2273         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
2274         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
2275         * testsuite/std/ranges/adaptors/enumerate/1.cc: Likewise.
2276         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
2277         * testsuite/std/ranges/adaptors/lwg3715.cc: Likewise.
2278         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
2279         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
2280         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
2281         * testsuite/std/ranges/range_adaptor_closure.cc: Likewise.
2282         * testsuite/std/ranges/repeat/1.cc: Likewise.
2283         * testsuite/std/ranges/version_c++23.cc: Likewise.
2284         * testsuite/std/ranges/zip/1.cc: Likewise.
2285         * testsuite/std/ranges/zip_transform/1.cc: Likewise.
2286
2287 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2288
2289         * testsuite/20_util/expected/assign.cc: Remove dg-options.
2290         * testsuite/20_util/expected/bad.cc: Likewise.
2291         * testsuite/20_util/expected/cons.cc: Likewise.
2292         * testsuite/20_util/expected/equality.cc: Likewise.
2293         * testsuite/20_util/expected/illformed_neg.cc: Likewise.
2294         * testsuite/20_util/expected/lwg3877.cc: Likewise.
2295         * testsuite/20_util/expected/lwg3938.cc: Likewise.
2296         * testsuite/20_util/expected/monadic.cc: Likewise.
2297         * testsuite/20_util/expected/observers.cc: Likewise.
2298         * testsuite/20_util/expected/requirements.cc: Likewise.
2299         * testsuite/20_util/expected/swap.cc: Likewise.
2300         * testsuite/20_util/expected/synopsis.cc: Likewise.
2301         * testsuite/20_util/expected/unexpected.cc: Likewise.
2302         * testsuite/20_util/expected/version.cc: Likewise.
2303
2304 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2305
2306         * testsuite/20_util/duration/arithmetic/overflow_c++20.cc:
2307         Remove dg-options.
2308         * testsuite/20_util/duration/io.cc: Likewise.
2309         * testsuite/std/time/clock/file/io.cc: Likewise.
2310         * testsuite/std/time/clock/file/members.cc: Likewise.
2311         * testsuite/std/time/clock/file/overview.cc: Likewise.
2312         * testsuite/std/time/clock/gps/1.cc: Likewise.
2313         * testsuite/std/time/clock/gps/io.cc: Likewise.
2314         * testsuite/std/time/clock/local/io.cc: Likewise.
2315         * testsuite/std/time/clock/system/io.cc: Likewise.
2316         * testsuite/std/time/clock/tai/1.cc: Likewise.
2317         * testsuite/std/time/clock/tai/io.cc: Likewise.
2318         * testsuite/std/time/clock/utc/1.cc: Likewise.
2319         * testsuite/std/time/clock/utc/io.cc: Likewise.
2320         * testsuite/std/time/clock/utc/leap_second_info.cc: Likewise.
2321         * testsuite/std/time/day/1.cc: Likewise.
2322         * testsuite/std/time/day/io.cc: Likewise.
2323         * testsuite/std/time/exceptions.cc: Likewise.
2324         * testsuite/std/time/format.cc: Likewise.
2325         * testsuite/std/time/hh_mm_ss/1.cc: Likewise.
2326         * testsuite/std/time/hh_mm_ss/109772.cc: Likewise.
2327         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
2328         * testsuite/std/time/is_am/1.cc: Likewise.
2329         * testsuite/std/time/is_pm/1.cc: Likewise.
2330         * testsuite/std/time/make12/1.cc: Likewise.
2331         * testsuite/std/time/make24/1.cc: Likewise.
2332         * testsuite/std/time/month/1.cc: Likewise.
2333         * testsuite/std/time/month/io.cc: Likewise.
2334         * testsuite/std/time/month_day/1.cc: Likewise.
2335         * testsuite/std/time/month_day/io.cc: Likewise.
2336         * testsuite/std/time/month_day_last/1.cc: Likewise.
2337         * testsuite/std/time/month_day_last/io.cc: Likewise.
2338         * testsuite/std/time/month_weekday/1.cc: Likewise.
2339         * testsuite/std/time/month_weekday/io.cc: Likewise.
2340         * testsuite/std/time/month_weekday_last/1.cc: Likewise.
2341         * testsuite/std/time/month_weekday_last/io.cc: Likewise.
2342         * testsuite/std/time/parse.cc: Likewise.
2343         * testsuite/std/time/syn_c++20.cc: Likewise.
2344         * testsuite/std/time/time_zone/get_info_local.cc: Likewise.
2345         * testsuite/std/time/time_zone/get_info_sys.cc: Likewise.
2346         * testsuite/std/time/time_zone/requirements.cc: Likewise.
2347         * testsuite/std/time/traits/is_clock.cc: Likewise.
2348         * testsuite/std/time/tzdb/1.cc: Likewise.
2349         * testsuite/std/time/tzdb/leap_seconds.cc: Likewise.
2350         * testsuite/std/time/tzdb_list/1.cc: Likewise.
2351         * testsuite/std/time/tzdb_list/requirements.cc: Likewise.
2352         * testsuite/std/time/weekday/1.cc: Likewise.
2353         * testsuite/std/time/weekday/io.cc: Likewise.
2354         * testsuite/std/time/weekday_indexed/io.cc: Likewise.
2355         * testsuite/std/time/weekday_last/1.cc: Likewise.
2356         * testsuite/std/time/weekday_last/io.cc: Likewise.
2357         * testsuite/std/time/year/1.cc: Likewise.
2358         * testsuite/std/time/year/2.cc: Likewise.
2359         * testsuite/std/time/year/io.cc: Likewise.
2360         * testsuite/std/time/weekday_indexed/1.cc: Likewise.
2361         * testsuite/std/time/year_month/1.cc: Likewise.
2362         * testsuite/std/time/year_month/2.cc: Likewise.
2363         * testsuite/std/time/year_month/io.cc: Likewise.
2364         * testsuite/std/time/year_month_day/1.cc: Likewise.
2365         * testsuite/std/time/year_month_day/2.cc: Likewise.
2366         * testsuite/std/time/year_month_day/3.cc: Likewise.
2367         * testsuite/std/time/year_month_day/4.cc: Likewise.
2368         * testsuite/std/time/year_month_day/io.cc: Likewise.
2369         * testsuite/std/time/year_month_day_last/1.cc: Likewise.
2370         * testsuite/std/time/year_month_day_last/2.cc: Likewise.
2371         * testsuite/std/time/year_month_day_last/io.cc: Likewise.
2372         * testsuite/std/time/year_month_weekday/1.cc: Likewise.
2373         * testsuite/std/time/year_month_weekday/2.cc: Likewise.
2374         * testsuite/std/time/year_month_weekday/3.cc: Likewise.
2375         * testsuite/std/time/year_month_weekday/io.cc: Likewise.
2376         * testsuite/std/time/year_month_weekday_last/1.cc: Likewise.
2377         * testsuite/std/time/year_month_weekday_last/2.cc: Likewise.
2378         * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
2379         * testsuite/std/time/zoned_time/1.cc: Likewise.
2380         * testsuite/std/time/zoned_time/custom.cc: Likewise.
2381         * testsuite/std/time/zoned_time/deduction.cc: Likewise.
2382         * testsuite/std/time/zoned_time/io.cc: Likewise.
2383         * testsuite/std/time/zoned_time/req_neg.cc: Likewise.
2384         * testsuite/std/time/zoned_time/requirements.cc: Likewise.
2385         * testsuite/std/time/zoned_traits.cc: Likewise.
2386
2387 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2388
2389         * testsuite/std/format/arguments/args.cc: Remove dg-options.
2390         * testsuite/std/format/arguments/lwg3810.cc: Likewise.
2391         * testsuite/std/format/error.cc: Likewise.
2392         * testsuite/std/format/format_string.cc: Likewise.
2393         * testsuite/std/format/formatter/concept.cc: Likewise.
2394         * testsuite/std/format/formatter/ext_float.cc: Likewise.
2395         * testsuite/std/format/formatter/requirements.cc: Likewise.
2396         * testsuite/std/format/functions/107871.cc: Likewise.
2397         * testsuite/std/format/functions/format.cc: Likewise.
2398         * testsuite/std/format/functions/format_to.cc: Likewise.
2399         * testsuite/std/format/functions/format_to_n.cc: Likewise.
2400         * testsuite/std/format/functions/size.cc: Likewise.
2401         * testsuite/std/format/functions/vformat_to.cc: Likewise.
2402         * testsuite/std/format/parse_ctx.cc: Likewise.
2403         * testsuite/std/format/string.cc: Likewise.
2404         * testsuite/std/format/string_neg.cc: Likewise.
2405         * testsuite/std/format/functions/format_c++23.cc: Removed.
2406
2407 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2408
2409         * testsuite/20_util/function_objects/range.cmp/equal_to.cc:
2410         Remove dg-options.
2411         * testsuite/20_util/function_objects/range.cmp/greater.cc:
2412         Likewise.
2413         * testsuite/20_util/function_objects/range.cmp/greater_equal.cc:
2414         Likewise.
2415         * testsuite/20_util/function_objects/range.cmp/less.cc:
2416         Likewise.
2417         * testsuite/20_util/function_objects/range.cmp/less_equal.cc:
2418         Likewise.
2419         * testsuite/20_util/function_objects/range.cmp/lwg3530.cc:
2420         Likewise.
2421         * testsuite/20_util/function_objects/range.cmp/not_equal_to.cc:
2422         Likewise.
2423         * testsuite/20_util/specialized_algorithms/construct_at/1.cc:
2424         Likewise.
2425         * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
2426         Likewise.
2427         * testsuite/20_util/specialized_algorithms/construct_at/95788.cc:
2428         Likewise.
2429         * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
2430         Likewise.
2431         * testsuite/20_util/specialized_algorithms/uninitialized_copy/constrained.cc:
2432         Likewise.
2433         * testsuite/20_util/specialized_algorithms/uninitialized_default_construct/constrained.cc:
2434         Likewise.
2435         * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
2436         Likewise.
2437         * testsuite/20_util/specialized_algorithms/uninitialized_fill/constrained.cc:
2438         Likewise.
2439         * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
2440         Likewise.
2441         * testsuite/20_util/specialized_algorithms/uninitialized_move/constrained.cc:
2442         Likewise.
2443         * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/constrained.cc:
2444         Likewise.
2445         * testsuite/25_algorithms/adjacent_find/constexpr.cc: Likewise.
2446         * testsuite/25_algorithms/adjacent_find/constrained.cc:
2447         Likewise.
2448         * testsuite/25_algorithms/all_of/constexpr.cc: Likewise.
2449         * testsuite/25_algorithms/all_of/constrained.cc: Likewise.
2450         * testsuite/25_algorithms/any_of/constexpr.cc: Likewise.
2451         * testsuite/25_algorithms/any_of/constrained.cc: Likewise.
2452         * testsuite/25_algorithms/binary_search/constexpr.cc: Likewise.
2453         * testsuite/25_algorithms/binary_search/constrained.cc:
2454         Likewise.
2455         * testsuite/25_algorithms/clamp/constrained.cc: Likewise.
2456         * testsuite/25_algorithms/constexpr_macro.cc: Likewise.
2457         * testsuite/25_algorithms/copy/95578.cc: Likewise.
2458         * testsuite/25_algorithms/copy/constexpr.cc: Likewise.
2459         * testsuite/25_algorithms/copy/constrained.cc: Likewise.
2460         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Likewise.
2461         * testsuite/25_algorithms/copy_backward/95578.cc: Likewise.
2462         * testsuite/25_algorithms/copy_backward/constexpr.cc: Likewise.
2463         * testsuite/25_algorithms/copy_backward/constrained.cc:
2464         Likewise.
2465         * testsuite/25_algorithms/copy_backward/debug/constexpr_neg.cc:
2466         Likewise.
2467         * testsuite/25_algorithms/copy_if/constexpr.cc: Likewise.
2468         * testsuite/25_algorithms/copy_if/constrained.cc: Likewise.
2469         * testsuite/25_algorithms/copy_n/constexpr.cc: Likewise.
2470         * testsuite/25_algorithms/copy_n/constrained.cc: Likewise.
2471         * testsuite/25_algorithms/count/constexpr.cc: Likewise.
2472         * testsuite/25_algorithms/count/constrained.cc: Likewise.
2473         * testsuite/25_algorithms/count_if/constexpr.cc: Likewise.
2474         * testsuite/25_algorithms/count_if/constrained.cc: Likewise.
2475         * testsuite/25_algorithms/cpp_lib_constexpr.cc: Likewise.
2476         * testsuite/25_algorithms/equal/95578.cc: Likewise.
2477         * testsuite/25_algorithms/equal/constexpr.cc: Likewise.
2478         * testsuite/25_algorithms/equal/constexpr_neg.cc: Likewise.
2479         * testsuite/25_algorithms/equal/constrained.cc: Likewise.
2480         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
2481         Likewise.
2482         * testsuite/25_algorithms/equal_range/constexpr.cc: Likewise.
2483         * testsuite/25_algorithms/equal_range/constrained.cc: Likewise.
2484         * testsuite/25_algorithms/fill/94017.cc: Likewise.
2485         * testsuite/25_algorithms/fill/constexpr.cc: Likewise.
2486         * testsuite/25_algorithms/fill/constrained.cc: Likewise.
2487         * testsuite/25_algorithms/fill_n/94017.cc: Likewise.
2488         * testsuite/25_algorithms/fill_n/constexpr.cc: Likewise.
2489         * testsuite/25_algorithms/fill_n/constrained.cc: Likewise.
2490         * testsuite/25_algorithms/find/constexpr.cc: Likewise.
2491         * testsuite/25_algorithms/find/constrained.cc: Likewise.
2492         * testsuite/25_algorithms/find_end/constexpr.cc: Likewise.
2493         * testsuite/25_algorithms/find_end/constrained.cc: Likewise.
2494         * testsuite/25_algorithms/find_first_of/constexpr.cc: Likewise.
2495         * testsuite/25_algorithms/find_first_of/constrained.cc:
2496         Likewise.
2497         * testsuite/25_algorithms/find_if/constexpr.cc: Likewise.
2498         * testsuite/25_algorithms/find_if/constrained.cc: Likewise.
2499         * testsuite/25_algorithms/find_if_not/constexpr.cc: Likewise.
2500         * testsuite/25_algorithms/find_if_not/constrained.cc: Likewise.
2501         * testsuite/25_algorithms/for_each/constexpr.cc: Likewise.
2502         * testsuite/25_algorithms/for_each/constrained.cc: Likewise.
2503         * testsuite/25_algorithms/generate/constexpr.cc: Likewise.
2504         * testsuite/25_algorithms/generate/constrained.cc: Likewise.
2505         * testsuite/25_algorithms/generate_n/constexpr.cc: Likewise.
2506         * testsuite/25_algorithms/generate_n/constrained.cc: Likewise.
2507         * testsuite/25_algorithms/heap/constrained.cc: Likewise.
2508         * testsuite/25_algorithms/includes/constrained.cc: Likewise.
2509         * testsuite/25_algorithms/inplace_merge/constrained.cc:
2510         Likewise.
2511         * testsuite/25_algorithms/is_heap/constexpr.cc: Likewise.
2512         * testsuite/25_algorithms/is_heap_until/constexpr.cc: Likewise.
2513         * testsuite/25_algorithms/is_partitioned/constexpr.cc: Likewise.
2514         * testsuite/25_algorithms/is_partitioned/constrained.cc:
2515         Likewise.
2516         * testsuite/25_algorithms/is_permutation/constexpr.cc: Likewise.
2517         * testsuite/25_algorithms/is_permutation/constrained.cc:
2518         Likewise.
2519         * testsuite/25_algorithms/is_sorted/constexpr.cc: Likewise.
2520         * testsuite/25_algorithms/is_sorted/constrained.cc: Likewise.
2521         * testsuite/25_algorithms/is_sorted_until/constexpr.cc:
2522         Likewise.
2523         * testsuite/25_algorithms/is_sorted_until/constrained.cc:
2524         Likewise.
2525         * testsuite/25_algorithms/iter_swap/constexpr.cc: Likewise.
2526         * testsuite/25_algorithms/lexicographical_compare/93972.cc:
2527         Likewise.
2528         * testsuite/25_algorithms/lexicographical_compare/95578.cc:
2529         Likewise.
2530         * testsuite/25_algorithms/lexicographical_compare/constexpr.cc:
2531         Likewise.
2532         * testsuite/25_algorithms/lexicographical_compare/constrained.cc:
2533         Likewise.
2534         * testsuite/25_algorithms/lexicographical_compare_three_way/1.cc:
2535         Likewise.
2536         * testsuite/25_algorithms/lexicographical_compare_three_way/constexpr.cc:
2537         Likewise.
2538         * testsuite/25_algorithms/lower_bound/constexpr.cc: Likewise.
2539         * testsuite/25_algorithms/lower_bound/constrained.cc: Likewise.
2540         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_neg.cc:
2541         Likewise.
2542         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_pred_neg.cc:
2543         Likewise.
2544         * testsuite/25_algorithms/lower_bound/debug/constexpr_valid_range_neg.cc:
2545         Likewise.
2546         * testsuite/25_algorithms/make_heap/constexpr.cc: Likewise.
2547         * testsuite/25_algorithms/max/constrained.cc: Likewise.
2548         * testsuite/25_algorithms/max_element/constrained.cc: Likewise.
2549         * testsuite/25_algorithms/merge/constexpr.cc: Likewise.
2550         * testsuite/25_algorithms/merge/constrained.cc: Likewise.
2551         * testsuite/25_algorithms/min/constrained.cc: Likewise.
2552         * testsuite/25_algorithms/min_element/constrained.cc: Likewise.
2553         * testsuite/25_algorithms/minmax/constrained.cc: Likewise.
2554         * testsuite/25_algorithms/minmax_element/constrained.cc:
2555         Likewise.
2556         * testsuite/25_algorithms/mismatch/constexpr.cc: Likewise.
2557         * testsuite/25_algorithms/mismatch/constrained.cc: Likewise.
2558         * testsuite/25_algorithms/move/93872.cc: Likewise.
2559         * testsuite/25_algorithms/move/95578.cc: Likewise.
2560         * testsuite/25_algorithms/move/constexpr.cc: Likewise.
2561         * testsuite/25_algorithms/move/constrained.cc: Likewise.
2562         * testsuite/25_algorithms/move_backward/93872.cc: Likewise.
2563         * testsuite/25_algorithms/move_backward/95578.cc: Likewise.
2564         * testsuite/25_algorithms/move_backward/constrained.cc:
2565         Likewise.
2566         * testsuite/25_algorithms/next_permutation/constexpr.cc:
2567         Likewise.
2568         * testsuite/25_algorithms/next_permutation/constrained.cc:
2569         Likewise.
2570         * testsuite/25_algorithms/none_of/constexpr.cc: Likewise.
2571         * testsuite/25_algorithms/none_of/constrained.cc: Likewise.
2572         * testsuite/25_algorithms/nth_element/constexpr.cc: Likewise.
2573         * testsuite/25_algorithms/nth_element/constrained.cc: Likewise.
2574         * testsuite/25_algorithms/partial_sort/constexpr.cc: Likewise.
2575         * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
2576         * testsuite/25_algorithms/partial_sort_copy/constexpr.cc:
2577         Likewise.
2578         * testsuite/25_algorithms/partial_sort_copy/constrained.cc:
2579         Likewise.
2580         * testsuite/25_algorithms/partition/constexpr.cc: Likewise.
2581         * testsuite/25_algorithms/partition/constrained.cc: Likewise.
2582         * testsuite/25_algorithms/partition_copy/constexpr.cc: Likewise.
2583         * testsuite/25_algorithms/partition_copy/constrained.cc:
2584         Likewise.
2585         * testsuite/25_algorithms/partition_point/constexpr.cc:
2586         Likewise.
2587         * testsuite/25_algorithms/partition_point/constrained.cc:
2588         Likewise.
2589         * testsuite/25_algorithms/pop_heap/constexpr.cc: Likewise.
2590         * testsuite/25_algorithms/prev_permutation/constexpr.cc:
2591         Likewise.
2592         * testsuite/25_algorithms/prev_permutation/constrained.cc:
2593         Likewise.
2594         * testsuite/25_algorithms/push_heap/constexpr.cc: Likewise.
2595         * testsuite/25_algorithms/remove/constexpr.cc: Likewise.
2596         * testsuite/25_algorithms/remove/constrained.cc: Likewise.
2597         * testsuite/25_algorithms/remove_copy/constexpr.cc: Likewise.
2598         * testsuite/25_algorithms/remove_copy/constrained.cc: Likewise.
2599         * testsuite/25_algorithms/remove_copy_if/constexpr.cc: Likewise.
2600         * testsuite/25_algorithms/remove_copy_if/constrained.cc:
2601         Likewise.
2602         * testsuite/25_algorithms/remove_if/constexpr.cc: Likewise.
2603         * testsuite/25_algorithms/remove_if/constrained.cc: Likewise.
2604         * testsuite/25_algorithms/replace/constrained.cc: Likewise.
2605         * testsuite/25_algorithms/replace_copy/constexpr.cc: Likewise.
2606         * testsuite/25_algorithms/replace_copy/constrained.cc: Likewise.
2607         * testsuite/25_algorithms/replace_copy_if/constexpr.cc:
2608         Likewise.
2609         * testsuite/25_algorithms/replace_copy_if/constrained.cc:
2610         Likewise.
2611         * testsuite/25_algorithms/replace_if/constexpr.cc: Likewise.
2612         * testsuite/25_algorithms/replace_if/constrained.cc: Likewise.
2613         * testsuite/25_algorithms/reverse/constexpr.cc: Likewise.
2614         * testsuite/25_algorithms/reverse/constrained.cc: Likewise.
2615         * testsuite/25_algorithms/reverse_copy/constexpr.cc: Likewise.
2616         * testsuite/25_algorithms/reverse_copy/constrained.cc: Likewise.
2617         * testsuite/25_algorithms/rotate/constexpr.cc: Likewise.
2618         * testsuite/25_algorithms/rotate/constrained.cc: Likewise.
2619         * testsuite/25_algorithms/rotate_copy/constexpr.cc: Likewise.
2620         * testsuite/25_algorithms/rotate_copy/constrained.cc: Likewise.
2621         * testsuite/25_algorithms/sample/constrained.cc: Likewise.
2622         * testsuite/25_algorithms/search/constexpr.cc: Likewise.
2623         * testsuite/25_algorithms/search/constrained.cc: Likewise.
2624         * testsuite/25_algorithms/search_n/97828.cc: Likewise.
2625         * testsuite/25_algorithms/search_n/constexpr.cc: Likewise.
2626         * testsuite/25_algorithms/search_n/constrained.cc: Likewise.
2627         * testsuite/25_algorithms/set_difference/constexpr.cc: Likewise.
2628         * testsuite/25_algorithms/set_difference/constrained.cc:
2629         Likewise.
2630         * testsuite/25_algorithms/set_intersection/constexpr.cc:
2631         Likewise.
2632         * testsuite/25_algorithms/set_intersection/constrained.cc:
2633         Likewise.
2634         * testsuite/25_algorithms/set_symmetric_difference/constexpr.cc:
2635         Likewise.
2636         * testsuite/25_algorithms/set_symmetric_difference/constrained.cc:
2637         Likewise.
2638         * testsuite/25_algorithms/set_union/constexpr.cc: Likewise.
2639         * testsuite/25_algorithms/set_union/constrained.cc: Likewise.
2640         * testsuite/25_algorithms/shift_left/1.cc: Likewise.
2641         * testsuite/25_algorithms/shift_right/1.cc: Likewise.
2642         * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
2643         * testsuite/25_algorithms/sort/constexpr.cc: Likewise.
2644         * testsuite/25_algorithms/sort/constrained.cc: Likewise.
2645         * testsuite/25_algorithms/sort_heap/constexpr.cc: Likewise.
2646         * testsuite/25_algorithms/stable_partition/constrained.cc:
2647         Likewise.
2648         * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
2649         * testsuite/25_algorithms/swap/constexpr.cc: Likewise.
2650         * testsuite/25_algorithms/swap_ranges/constexpr.cc: Likewise.
2651         * testsuite/25_algorithms/swap_ranges/constrained.cc: Likewise.
2652         * testsuite/25_algorithms/transform/constexpr.cc: Likewise.
2653         * testsuite/25_algorithms/transform/constrained.cc: Likewise.
2654         * testsuite/25_algorithms/unique/constexpr.cc: Likewise.
2655         * testsuite/25_algorithms/unique/constrained.cc: Likewise.
2656         * testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise.
2657         * testsuite/25_algorithms/unique_copy/constrained.cc: Likewise.
2658         * testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise.
2659         * testsuite/25_algorithms/upper_bound/constrained.cc: Likewise.
2660         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_neg.cc:
2661         Likewise.
2662         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_pred_neg.cc:
2663         Likewise.
2664         * testsuite/25_algorithms/upper_bound/debug/constexpr_valid_range_neg.cc:
2665         Likewise.
2666
2667 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2668
2669         * testsuite/std/concepts/1.cc: Remove dg-options.
2670         * testsuite/std/concepts/2.cc: Likewise.
2671         * testsuite/std/concepts/concepts.callable/invocable.cc:
2672         Likewise.
2673         * testsuite/std/concepts/concepts.callable/regular_invocable.cc:
2674         Likewise.
2675         * testsuite/std/concepts/concepts.callable/relation.cc:
2676         Likewise.
2677         * testsuite/std/concepts/concepts.callable/strictweakorder.cc:
2678         Likewise.
2679         * testsuite/std/concepts/concepts.lang/concept.arithmetic/floating_point.cc: Likewise.
2680         * testsuite/std/concepts/concepts.lang/concept.arithmetic/integral.cc: Likewise.
2681         * testsuite/std/concepts/concepts.lang/concept.arithmetic/signed_integral.cc: Likewise.
2682         * testsuite/std/concepts/concepts.lang/concept.arithmetic/unsigned_integral.cc: Likewise.
2683         * testsuite/std/concepts/concepts.lang/concept.assignable/1.cc:
2684         Likewise.
2685         * testsuite/std/concepts/concepts.lang/concept.common/1.cc:
2686         Likewise.
2687         * testsuite/std/concepts/concepts.lang/concept.commonref/1.cc:
2688         Likewise.
2689         * testsuite/std/concepts/concepts.lang/concept.constructible/1.cc: Likewise.
2690         * testsuite/std/concepts/concepts.lang/concept.convertible/1.cc:
2691         Likewise.
2692         * testsuite/std/concepts/concepts.lang/concept.copyconstructible/1.cc: Likewise.
2693         * testsuite/std/concepts/concepts.lang/concept.defaultinitializable/1.cc: Likewise.
2694         * testsuite/std/concepts/concepts.lang/concept.defaultinitializable/lwg3149.cc: Likewise.
2695         * testsuite/std/concepts/concepts.lang/concept.derived/1.cc:
2696         Likewise.
2697         * testsuite/std/concepts/concepts.lang/concept.destructible/1.cc: Likewise.
2698         * testsuite/std/concepts/concepts.lang/concept.moveconstructible/1.cc: Likewise.
2699         * testsuite/std/concepts/concepts.lang/concept.same/1.cc:
2700         Likewise.
2701         * testsuite/std/concepts/concepts.lang/concept.swappable/swap.cc: Likewise.
2702         * testsuite/std/concepts/concepts.lang/concept.swappable/swappable.cc: Likewise.
2703         * testsuite/std/concepts/concepts.lang/concept.swappable/swappable_with.cc: Likewise.
2704         * testsuite/std/concepts/concepts.object/copyable.cc: Likewise.
2705         * testsuite/std/concepts/concepts.object/movable.cc: Likewise.
2706         * testsuite/std/concepts/concepts.object/regular.cc: Likewise.
2707         * testsuite/std/concepts/concepts.object/semiregular.cc:
2708         Likewise.
2709         * testsuite/std/ranges/97600.cc: Likewise.
2710         * testsuite/std/ranges/access/101782.cc: Likewise.
2711         * testsuite/std/ranges/access/begin.cc: Likewise.
2712         * testsuite/std/ranges/access/begin_neg.cc: Likewise.
2713         * testsuite/std/ranges/access/cbegin.cc: Likewise.
2714         * testsuite/std/ranges/access/cdata.cc: Likewise.
2715         * testsuite/std/ranges/access/cend.cc: Likewise.
2716         * testsuite/std/ranges/access/crbegin.cc: Likewise.
2717         * testsuite/std/ranges/access/crend.cc: Likewise.
2718         * testsuite/std/ranges/access/data.cc: Likewise.
2719         * testsuite/std/ranges/access/empty.cc: Likewise.
2720         * testsuite/std/ranges/access/end.cc: Likewise.
2721         * testsuite/std/ranges/access/end_neg.cc: Likewise.
2722         * testsuite/std/ranges/access/lwg3467.cc: Likewise.
2723         * testsuite/std/ranges/access/p2602.cc: Likewise.
2724         * testsuite/std/ranges/access/rbegin.cc: Likewise.
2725         * testsuite/std/ranges/access/rend.cc: Likewise.
2726         * testsuite/std/ranges/access/size.cc: Likewise.
2727         * testsuite/std/ranges/access/size_neg.cc: Likewise.
2728         * testsuite/std/ranges/access/ssize.cc: Likewise.
2729         * testsuite/std/ranges/adaptors/100479.cc: Likewise.
2730         * testsuite/std/ranges/adaptors/100577.cc: Likewise.
2731         * testsuite/std/ranges/adaptors/93978.cc: Likewise.
2732         * testsuite/std/ranges/adaptors/95322.cc: Likewise.
2733         * testsuite/std/ranges/adaptors/99433.cc: Likewise.
2734         * testsuite/std/ranges/adaptors/all.cc: Likewise.
2735         * testsuite/std/ranges/adaptors/common.cc: Likewise.
2736         * testsuite/std/ranges/adaptors/conditionally_borrowed.cc:
2737         Likewise.
2738         * testsuite/std/ranges/adaptors/counted.cc: Likewise.
2739         * testsuite/std/ranges/adaptors/detail/copyable_box.cc:
2740         Likewise.
2741         * testsuite/std/ranges/adaptors/drop.cc: Likewise.
2742         * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
2743         * testsuite/std/ranges/adaptors/elements.cc: Likewise.
2744         * testsuite/std/ranges/adaptors/filter.cc: Likewise.
2745         * testsuite/std/ranges/adaptors/join.cc: Likewise.
2746         * testsuite/std/ranges/adaptors/lazy_split.cc: Likewise.
2747         * testsuite/std/ranges/adaptors/lazy_split_neg.cc: Likewise.
2748         * testsuite/std/ranges/adaptors/lwg3286.cc: Likewise.
2749         * testsuite/std/ranges/adaptors/lwg3313_neg.cc: Likewise.
2750         * testsuite/std/ranges/adaptors/lwg3325_neg.cc: Likewise.
2751         * testsuite/std/ranges/adaptors/lwg3406.cc: Likewise.
2752         * testsuite/std/ranges/adaptors/p1739.cc: Likewise.
2753         * testsuite/std/ranges/adaptors/p2281.cc: Likewise.
2754         * testsuite/std/ranges/adaptors/p2770r0.cc: Likewise.
2755         * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
2756         * testsuite/std/ranges/adaptors/sizeof.cc: Likewise.
2757         * testsuite/std/ranges/adaptors/split.cc: Likewise.
2758         * testsuite/std/ranges/adaptors/take.cc: Likewise.
2759         * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2760         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2761         * testsuite/std/ranges/empty_view.cc: Likewise.
2762         * testsuite/std/ranges/headers/ranges/synopsis.cc: Likewise.
2763         * testsuite/std/ranges/iota/difference_type.cc: Likewise.
2764         * testsuite/std/ranges/iota/iota_view.cc: Likewise.
2765         * testsuite/std/ranges/iota/iterator.cc: Likewise.
2766         * testsuite/std/ranges/iota/lwg3292_neg.cc: Likewise.
2767         * testsuite/std/ranges/iota/max_size_type.cc: Likewise.
2768         * testsuite/std/ranges/istream_view.cc: Likewise.
2769         * testsuite/std/ranges/p2259.cc: Likewise.
2770         * testsuite/std/ranges/p2325.cc: Likewise.
2771         * testsuite/std/ranges/p2367.cc: Likewise.
2772         * testsuite/std/ranges/range.cc: Likewise.
2773         * testsuite/std/ranges/refinements.cc: Likewise.
2774         * testsuite/std/ranges/safe_range.cc: Likewise.
2775         * testsuite/std/ranges/safe_range_types.cc: Likewise.
2776         * testsuite/std/ranges/single_view.cc: Likewise.
2777         * testsuite/std/ranges/sized.cc: Likewise.
2778         * testsuite/std/ranges/subrange/1.cc: Likewise.
2779         * testsuite/std/ranges/subrange/97512.cc: Likewise.
2780         * testsuite/std/ranges/subrange/constexpr.cc: Likewise.
2781         * testsuite/std/ranges/subrange/lwg3282_neg.cc: Likewise.
2782         * testsuite/std/ranges/subrange/lwg3286.cc: Likewise.
2783         * testsuite/std/ranges/subrange/lwg3433.cc: Likewise.
2784         * testsuite/std/ranges/subrange/sizeof.cc: Likewise.
2785         * testsuite/std/ranges/subrange/tuple_like.cc: Likewise.
2786         * testsuite/std/ranges/view.cc: Likewise.
2787
2788 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2789
2790         * testsuite/21_strings/headers/cuchar/functions_std_cxx20.cc:
2791         Remove dg-options.
2792         * testsuite/23_containers/span/contiguous_range_neg.cc:
2793         Likewise.
2794         * testsuite/23_containers/span/everything.cc: Likewise.
2795
2796 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2797
2798         * testsuite/24_iterators/reverse_iterator/100639.cc: Remove
2799         dg-options and add dg-add-options strict_std.
2800         * testsuite/std/ranges/iota/93267.cc: Likewise.
2801         * testsuite/std/ranges/iota/96042.cc: Likewise.
2802         * testsuite/std/ranges/iota/size.cc: Likewise.
2803         * testsuite/std/ranges/subrange/96042.cc: Likewise.
2804
2805 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2806
2807         * testsuite/tr1/5_numerical_facilities/special_functions/07_conf_hyperg/compile_cxx17.cc:
2808         Replace dg-options -std=c++17 with dg-add-options strict_std.
2809         * testsuite/tr1/5_numerical_facilities/special_functions/17_hyperg/compile_cxx17.cc:
2810         Likewise.
2811
2812 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2813
2814         * testsuite/23_containers/deque/48101-2_neg.cc: Replace
2815         dg-options with target selector.
2816         * testsuite/23_containers/forward_list/48101-2_neg.cc: Likewise.
2817         * testsuite/23_containers/list/48101-2_neg.cc: Likewise.
2818         * testsuite/23_containers/map/48101-2_neg.cc: Likewise.
2819         * testsuite/23_containers/map/48101_neg.cc: Likewise.
2820         * testsuite/23_containers/multimap/48101-2_neg.cc: Likewise.
2821         * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
2822         * testsuite/23_containers/multiset/48101-2_neg.cc: Likewise.
2823         * testsuite/23_containers/set/48101-2_neg.cc: Likewise.
2824         * testsuite/23_containers/unordered_map/48101-2_neg.cc:
2825         Likewise.
2826         * testsuite/23_containers/unordered_multimap/48101-2_neg.cc:
2827         Likewise.
2828         * testsuite/23_containers/unordered_multiset/48101-2_neg.cc:
2829         Likewise.
2830         * testsuite/23_containers/unordered_set/48101-2_neg.cc:
2831         Likewise.
2832         * testsuite/23_containers/vector/48101-2_neg.cc: Likewise.
2833
2834 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2835
2836         * doc/xml/manual/test.xml: Update documentation on running and
2837         writing tests.
2838         * doc/html/manual/test.html: Regenerate.
2839         * testsuite/Makefile.am: Add v3-use-std-list to site.tmp
2840         * testsuite/Makefile.in: Regenerate.
2841         * testsuite/lib/dg-options.exp (add_options_for_strict_std): New
2842         proc.
2843         * testsuite/lib/libstdc++.exp (search_for): New utility proc.
2844         (v3-dg-runtest): New proc to replace dg-runtest.
2845         * testsuite/libstdc++-dg/conformance.exp: Use v3-dg-runtest.
2846
2847 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2848
2849         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc:
2850         Fix test to work for C++23 and C++26 too.
2851
2852 2023-09-15  Patrick Palka  <ppalka@redhat.com>
2853
2854         * include/std/bit: Include <concepts>.
2855         (byteswap): Use a type-constraint instead of enable_if_t
2856         inside the return type, and use std::integral.
2857         (_If_is_unsigned_integer): Replace with ...
2858         (__unsigned_integer): ... this.
2859         (rotl): Use a type-constraint instead of enable_if_t inside
2860         the return type.
2861         (countl_zero): Likewise.
2862         (countl_one): Likewise.
2863         (countr_zero): Likewise.
2864         (countr_one): Likewise.
2865         (popcount): Likewise.
2866         (has_single_bit): Likewise.
2867         (bit_ceil): Likewise.
2868         (bit_floor): Likewise.
2869         (bit_width): Likewise.
2870
2871 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2872
2873         * include/std/variant (variant): Remove derivation from
2874         _Enable_default_constructor base class.
2875         (variant::variant()): Constrain.
2876         * testsuite/20_util/variant/default_ctor.cc: New test.
2877
2878 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2879
2880         PR libstdc++/111172
2881         * include/std/variant (get<T>): Remove !is_void static
2882         assertions.
2883
2884 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2885
2886         * include/bits/version.def (to_chars): Define new value for
2887         C++26.
2888         * include/bits/version.h: Regenerate.
2889         * include/std/charconv (to_chars_result::operator bool): New
2890         function.
2891         (from_chars_result::operator bool): New function.
2892         * testsuite/20_util/to_chars/version.cc: Update expected value.
2893         * testsuite/20_util/from_chars/result.cc: New test.
2894         * testsuite/20_util/to_chars/result.cc: New test.
2895
2896 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2897
2898         PR c++/111357
2899         * testsuite/20_util/integer_sequence/pr111357.cc: New test.
2900
2901 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2902
2903         * testsuite/27_io/basic_filebuf/seekoff/char/1-io.cc: Use
2904         dg-additional-files. Remove @require@ and @diff@ comments.
2905         * testsuite/27_io/basic_filebuf/seekoff/char/2-io.cc: Likewise.
2906         * testsuite/27_io/basic_filebuf/seekpos/char/1-io.cc: Likewise.
2907         * testsuite/27_io/basic_filebuf/seekpos/char/2-io.cc: Likewise.
2908         * testsuite/lib/dg-options.exp (v3_additional_files): New
2909         global variable.
2910         (dg-additional-files): New proc.
2911         * testsuite/lib/libstdc++.exp (v3_target_compile): Copy
2912         additional files to test directory.
2913
2914 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2915
2916         * include/experimental/io_context (io_context) [!_GLIBCXX_HAS_GTHREADS]:
2917         Use a plain integer for _M_work_count for single-threaded
2918         targets.
2919         * include/experimental/memory_resource (__get_default_resource)
2920         [!_GLIBCXX_HAS_GTHREADS]: Use unsynchronized type for
2921         single-threaded targets.
2922         * src/c++17/default_resource.h: Adjust preprocessor conditions
2923         to match memory_resource.cc.
2924         * src/c++17/memory_resource.cc [!_GLIBCXX_HAS_GTHREADS]
2925         (atomic_mem_res): Use unsynchronized type for single-threaded
2926         targets.
2927
2928 2023-09-14  Christophe Lyon  <christophe.lyon@linaro.org>
2929
2930         * testsuite/29_atomics/atomic/compare_exchange_padding.cc: Likewise.
2931         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
2932         * testsuite/29_atomics/atomic_float/value_init.cc: Likewise.
2933         * testsuite/29_atomics/atomic_integral/cons/value_init.cc: Likewise.
2934         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc: Likewise.
2935         * testsuite/29_atomics/atomic_ref/generic.cc: Likewise.
2936         * testsuite/29_atomics/atomic_ref/integral.cc: Likewise.
2937         * testsuite/29_atomics/atomic_ref/pointer.cc: Likewise.
2938
2939 2023-09-14  François Dumont  <fdumont@gcc.gnu.org>
2940
2941         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Add
2942         { dg-require-normal-namespace "" }.
2943
2944 2023-09-13  François Dumont  <fdumont@gcc.gnu.org>
2945
2946         * include/std/format (std::__format::_Arg_store): Explicit version
2947         namespace on make_format_args friend declaration.
2948
2949 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2950
2951         PR libstdc++/111327
2952         * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Also define
2953         a deleted fallback operator() overload.  Constrain both the
2954         enabled and deleted overloads accordingly.
2955         * testsuite/20_util/function_objects/not_fn/111327.cc: New test.
2956
2957 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2958
2959         PR libstdc++/111327
2960         * include/std/functional (_Bind_front::operator()): Add deleted
2961         fallback overloads for each const/ref qualifier pair.  Give the
2962         enabled overloads dummy constraints to make each one more
2963         specialized than the corresponding deleted overload.
2964         * testsuite/20_util/function_objects/bind_front/111327.cc: New test.
2965
2966 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2967
2968         * include/std/functional (_Bind_front0): Remove.
2969         (_Bind_front_t): Adjust.
2970
2971 2023-09-12  Jonathan Wakely  <jwakely@redhat.com>
2972
2973         * python/libstdcxx/v6/printers.py: Reformat.
2974         * python/libstdcxx/v6/xmethods.py: Likewise.
2975
2976 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2977
2978         * src/c++11/debug.cc (acquire_sequence_ptr_for_lock): New
2979         function.
2980         (reset_sequence_ptr): New function.
2981         (_Safe_iterator_base::_M_detach)
2982         (_Safe_local_iterator_base::_M_detach): Replace bare atomic_load
2983         with acquire_sequence_ptr_for_lock.
2984         (_Safe_iterator_base::_M_reset): Replace bare atomic_store with
2985         reset_sequence_ptr.
2986
2987 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2988
2989         * src/c++11/Makefile.am: Add new file.
2990         * src/c++11/Makefile.in: Regenerate.
2991         * src/c++11/debug.cc (__glibcxx_assert_fail): Move to ...
2992         * src/c++11/assert_fail.cc: New file.
2993
2994 2023-09-11  Ken Matsui  <kmatsui@gcc.gnu.org>
2995
2996         * include/bits/c++config (_GLIBCXX_HAS_BUILTIN): Do not undef.
2997         (_GLIBCXX_USE_BUILTIN_TRAIT): Define.
2998
2999 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
3000
3001         * include/bits/version.def (__cpp_lib_formatters): Define.
3002         * include/bits/version.h: Regenerate.
3003         * include/std/stacktrace (formatter<stacktrace_entry>)
3004         (formatter<basic_stacktrace<Alloc>>): Define.
3005         * include/std/thread (formatter<thread::id, charT>): Define.
3006         * testsuite/19_diagnostics/stacktrace/output.cc: New test.
3007         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Add
3008         std::formatter specializations.
3009         * testsuite/19_diagnostics/stacktrace/version.cc: Check
3010         __cpp_lib_formatters macro.
3011         * testsuite/30_threads/thread/id/hash.cc: Remove gthreads
3012         dependency.
3013         * testsuite/30_threads/thread/id/operators.cc: Likewise.
3014         * testsuite/30_threads/thread/id/operators_c++20.cc: Likewise.
3015         * testsuite/30_threads/thread/id/output.cc: New test.
3016
3017 2023-09-11  Pekka Seppänen  <pexu@gcc.mail.kapsi.fi>
3018
3019         * src/c++11/cow-locale_init.cc: Add [[maybe_unused]] attribute.
3020         * src/c++17/fs_path.cc (path::_S_convert_loc): Likewise.
3021         * src/filesystem/path.cc (path::_S_convert_loc): Likewise.
3022
3023 2023-09-08  Jonathan Wakely  <jwakely@redhat.com>
3024
3025         * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++23 directory.
3026         * configure: Regenerate.
3027         * doc/html/manual/*: Regenerate.
3028         * doc/xml/manual/using.xml: Update documentation on linking.
3029         * include/std/stacktrace: Remove declarations of libbacktrace
3030         APIs.
3031         (stacktrace_entry::_S_err_handler, stacktrace_entry::_S_init):
3032         Remove.
3033         (stacktrace_entry::_Info): New class.
3034         (stacktrace_entry::_M_get_info): Use _Info.
3035         (__stacktrace_impl): New class.
3036         (basic_stacktrace): Derive from __stacktrace_impl.
3037         (basic_stacktrace::current): Use __stacktrace_impl::_S_current.
3038         * scripts/testsuite_flags.in: Adjust LDFLAGS to find
3039         libstdc++exp instead of libstdc++_libbacktrace.
3040         * src/Makefile.am (SUBDIRS): Add c++23 directory.
3041         * src/Makefile.in: Regenerate.
3042         * src/c++20/Makefile.am: Fix comment.
3043         * src/c++20/Makefile.in: Regenerate.
3044         * src/c++23/Makefile.am: New file.
3045         * src/c++23/Makefile.in: New file.
3046         * src/c++23/stacktrace.cc: New file with definitions of
3047         stacktrace_entry::_Info and __stacktrace_impl members.
3048         * src/experimental/Makefile.am: Use LIBADD to include other
3049         libraries.
3050         * src/experimental/Makefile.in: Regenerate.
3051         * src/libbacktrace/Makefile.am: Use noinst_LTLIBRARIES.
3052         * src/libbacktrace/Makefile.in: Regenerate.
3053         * testsuite/19_diagnostics/stacktrace/current.cc: Adjust
3054         dg-options to use -lstdc++exp.
3055         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
3056         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
3057         * testsuite/23_containers/vector/debug/assign4_backtrace_neg.cc:
3058         Likewise.
3059
3060 2023-09-08  Alexey Lapshin  <alexey.lapshin@espressif.com>
3061
3062         * src/libbacktrace/Makefile.am: Remove -Werror.
3063         * src/libbacktrace/Makefile.in: Regenerate.
3064
3065 2023-09-08  Jonathan Wakely  <jwakely@redhat.com>
3066
3067         * testsuite/Makefile.am (check-DEJAGNU): Use @ in recipe.
3068         * testsuite/Makefile.in: Regenerate.
3069
3070 2023-09-08  Yang Yujie  <yangyujie@loongson.cn>
3071
3072         * configure.host: Register t-loongarch in tmake_file.
3073         * config/cpu/loongarch/t-loongarch: New file.  Manually refresh
3074         MULTISUBDIR with $(shell $(CXX) --print-multi-directory).
3075
3076 2023-09-07  Bruno Victal  <mirai@makinata.eu>
3077
3078         * acinclude.m4: Update docbook xsl URI.
3079         * configure: Regenerate.
3080
3081 2023-09-07  Bruno Victal  <mirai@makinata.eu>
3082
3083         * doc/Makefile.am: Fix 'doc-install-info' rule.
3084         Fix typo in commment.
3085         * doc/Makefile.in: Regenerate.
3086
3087 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3088
3089         * testsuite/27_io/filesystem/path/concat/94063.cc: Simplify
3090         dg-do target selector.
3091
3092 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3093
3094         * testsuite/config/default.exp: Remove trailing whitespace.
3095         * testsuite/lib/dg-options.exp: Likewise.
3096         * testsuite/lib/prune.exp: Likewise.
3097         * testsuite/libstdc++-abi/abi.exp: Likewise.
3098         * testsuite/libstdc++-dg/conformance.exp: Likewise.
3099         * testsuite/libstdc++-prettyprinters/prettyprinters.exp:
3100         Likewise.
3101         * testsuite/libstdc++-xmethods/xmethods.exp: Likewise.
3102         * testsuite/lib/libstdc++.exp: Likewise.
3103         (check_v3_target_c_std): Fix filename for temporary source file.
3104
3105 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3106
3107         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for mkdir,
3108         chmod, chdir, and getcwd.
3109         * config.h.in: Regenerate.
3110         * configure: Regenerate.
3111         * src/c++17/fs_ops.cc (create_dir): Use USE_MKDIR macro.
3112         (fs::current_path): Use USE_GETCWD and USE_CHDIR macros.
3113         (fs::permissions): Use USE_CHMOD macro.
3114         * src/filesystem/ops-common.h [FILESYSTEM_IS_WINDOWS]
3115         (chmod, mkdir, getcwd, chdir): Define new macros.
3116         [FILESYSTEM_IS_WINDOWS] (chmod, mkdir, getcwd, chdir): Use
3117         new macros.
3118         * src/filesystem/ops.cc (create_dir): Use USE_MKDIR macro.
3119         (fs::current_path): Use USE_GETCWD and USE_CHDIR macros.
3120         (fs::permissions): Use USE_CHMOD macro.
3121
3122 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3123
3124         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Disable by default
3125         for avr.
3126         * configure: Regenerate.
3127
3128 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3129
3130         * testsuite/23_containers/unordered_map/operations/1.cc: Add
3131         dg-options for C++20 mode.
3132         * testsuite/23_containers/unordered_multimap/operations/1.cc:
3133         Likewise.
3134         * testsuite/23_containers/unordered_multiset/operations/1.cc:
3135         Likewise.
3136         * testsuite/23_containers/unordered_set/operations/1.cc:
3137         Likewise.
3138         * testsuite/std/time/parse.cc: Move dg-options before dg-do.
3139
3140 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3141
3142         * testsuite/std/ranges/access/cbegin.cc: Adjust for C++23
3143         compatibility.
3144         * testsuite/std/ranges/access/cdata.cc: Likewise.
3145         * testsuite/std/ranges/access/cend.cc: Likewise.
3146         * testsuite/std/ranges/access/crbegin.cc: Likewise.
3147         * testsuite/std/ranges/access/crend.cc: Likewise.
3148         * testsuite/std/ranges/adaptors/take.cc: Likewise.
3149         * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
3150         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
3151
3152 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3153
3154         * include/bits/iterator_concepts.h (__imove::iter_move): Define
3155         poison pill as deleted for consistency.
3156         (__access::begin): Replace with a single declaration.
3157         * include/bits/ranges_base.h (__access::end, __access::rbegin)
3158         (__access::rend, __access::size): Likewise.
3159         * include/bits/version.def (ranges): Update value for C++23.
3160         * include/bits/version.h: Regenerate.
3161         * libsupc++/compare (__compare): Add missing poison pill
3162         overloads.
3163         * testsuite/std/ranges/version_c++23.cc: Adjust expected value
3164         of __cpp_lib_ranges.
3165         * testsuite/std/ranges/access/p2602.cc: New test.
3166
3167 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3168
3169         * include/bits/iterator_concepts.h (ranges::__cust_imove):
3170         Rename to ranges::__imove.
3171         (_IMove): Rename to _IterMove.
3172         (ranges::__cust_iswap): Rename to ranges::__iswap.
3173         (ranges::__cust): Rename to ranges::_Cpo.
3174         (ranges::__cust_access): Rename to ranges::__access.
3175         * include/bits/ranges_base.h (ranges::__cust_access): Rename to
3176         ranges::__access.
3177         (ranges::__cust): Rename to ranges::_Cpo.
3178         * include/std/concepts (ranges::__cust_swap):  Rename to
3179         ranges::__swap.
3180         (ranges::__cust): Rename to ranges::_Cpo.
3181         * libsupc++/compare (__cmp_cust): Rename to __compare.
3182         (__cmp_algo): Rename to _Cpo.
3183
3184 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3185
3186         * include/bits/version.def (ranges): Update value.
3187         * include/bits/version.h: Regenerate.
3188         * include/std/ranges (__detail::__boxable): Use
3189         move_constructible instead of copy_constructible for C++23.
3190         (__detail::__box<T>): Adjust constraints for partial
3191         specialization.
3192         (single_view, transform_view): Use __box_constructible instead
3193         of copy_constructible in constraints.
3194         (zip_transform_view, adjacent_transform_view, repeat_view): Use
3195         move_constructible instead of copy_constructible in constraints.
3196         * testsuite/std/ranges/adaptors/adjacent_transform/1.cc: Check
3197         construction from move-only argument.
3198         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
3199         * testsuite/std/ranges/repeat/1.cc: Likewise.
3200         * testsuite/std/ranges/single_view.cc: Likewise.
3201         * testsuite/std/ranges/zip_transform/1.cc: Likewise.
3202         * testsuite/std/ranges/version_c++23.cc: Adjust expected value
3203         of __cpp_lib_ranges.
3204
3205 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
3206
3207         * testsuite/util/testsuite_iterators.h (is_customization_point_object):
3208         Remove parameter name.
3209
3210 2023-09-06  Jonathan Wakely  <jwakely@redhat.com>
3211
3212         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Disable by default
3213         for freestanding.
3214         * configure: Regenerate.
3215
3216 2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
3217
3218         Revert
3219         2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
3220
3221         PR libstdc++/111238
3222         * configure: Regenerate.
3223         * configure.ac: Call GLIBCXX_CHECK_LINKER_FEATURES in cross,
3224         non-Canadian builds.
3225
3226 2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
3227
3228         PR libstdc++/111238
3229         * configure: Regenerate.
3230         * configure.ac: Call GLIBCXX_CHECK_LINKER_FEATURES in cross,
3231         non-Canadian builds.
3232
3233 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3234
3235         * testsuite/26_numerics/complex/literals/types.cc: Remove
3236         dg-options and add target selector instead.
3237
3238 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3239
3240         * testsuite/tr1/6_containers/utility/pair.cc: Remove dg-options
3241         and qualify ambiguous calls to get.
3242         * testsuite/tr1/8_c_compatibility/cmath/pow_cmath.cc: Adjust
3243         expected result for std::pow(float, int) as per DR 550.
3244
3245 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3246
3247         * testsuite/20_util/auto_ptr/1.cc: Remove dg-options -std=c++03
3248         and add dg-warning for deprecation warnings.
3249         * testsuite/20_util/auto_ptr/2.cc: Likewise.
3250         * testsuite/20_util/auto_ptr/3.cc: Likewise.
3251         * testsuite/20_util/auto_ptr/3946.cc: Likewise.
3252         * testsuite/20_util/auto_ptr/4.cc: Likewise.
3253         * testsuite/20_util/auto_ptr/5.cc: Likewise.
3254         * testsuite/20_util/auto_ptr/6.cc: Likewise.
3255         * testsuite/20_util/auto_ptr/7.cc: Likewise.
3256         * testsuite/20_util/auto_ptr/assign_neg.cc: Likewise.
3257         * testsuite/20_util/auto_ptr/requirements/explicit_instantiation/1.cc:
3258         Likewise.
3259         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr.cc:
3260         Likewise.
3261         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr_neg.cc:
3262         Likewise.
3263         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr_rvalue_neg.cc:
3264         Likewise.
3265         * testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc:
3266         Likewise.
3267         * testsuite/tr1/2_general_utilities/shared_ptr/cons/auto_ptr.cc:
3268         Likewise.
3269         * testsuite/tr1/2_general_utilities/shared_ptr/cons/auto_ptr_neg.cc:
3270         Likewise.
3271
3272 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3273
3274         PR libstdc++/26142
3275         * testsuite/23_containers/vector/26412-1.cc: Moved to...
3276         * testsuite/23_containers/vector/26142-1.cc: ...here.
3277         * testsuite/23_containers/vector/26412-2.cc: Moved to...
3278         * testsuite/23_containers/vector/26142-2.cc: ...here.
3279
3280 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3281
3282         * testsuite/20_util/bitset/107037.cc: Add c++98_only selector.
3283         * testsuite/26_numerics/complex/56111.cc: Likewise.
3284
3285 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3286
3287         * testsuite/23_containers/deque/requirements/explicit_instantiation/2.cc:
3288         Add dg-options to restrict the test to C++98 mode.
3289         * testsuite/23_containers/list/requirements/explicit_instantiation/2.cc:
3290         Likewise.
3291
3292 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
3293
3294         * testsuite/20_util/expected/bad.cc: Add missing target
3295         selector.
3296
3297 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3298
3299         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Adjust
3300         expected errors.
3301         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
3302         Likewise.
3303
3304 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3305
3306         * testsuite/27_io/filesystem/iterators/91067.cc: Add
3307         -Wno-self-move to options.
3308         * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
3309
3310 2023-09-01  Vladimir Palevich  <palevichva@gmail.com>
3311
3312         PR libstdc++/110879
3313         * include/bits/vector.tcc (_M_realloc_insert): End guard
3314         lifetime just before assignment to class members.
3315         (_M_default_append): Likewise.
3316
3317 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3318
3319         * src/c++17/fs_ops.cc (fs::absolute) [FILESYSTEM_IS_WINDOWS]:
3320         Use __resize_and_overwrite to fill buffer.
3321         (fs::read_symlink) [HAVE_READLINK]: Likewise.
3322         * src/filesystem/ops-common.h (get_temp_directory_from_env)
3323         [FILESYSTEM_IS_WINDOWS]: Likewise.
3324
3325 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3326
3327         PR libstdc++/111077
3328         * include/bits/atomic_base.h (__atomic_impl::__compare_exchange):
3329         Add _AtomicRef non-type template parameter and use a loop if it
3330         is true.
3331         (__atomic_impl::compare_exchange_weak): Add _AtomicRef NTTP.
3332         (__atomic_impl::compare_exchange_strong): Likewise.
3333         (atomic_ref::compare_exchange_weak): Use true for NTTP.
3334         (atomic_ref::compare_exchange_strong): Use true for NTTP.
3335         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc:
3336         Fix test to not rely on atomic_ref::load() to return an object
3337         with padding preserved.
3338
3339 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3340
3341         * testsuite/27_io/filesystem/path/108636.cc: Add dg-require for
3342         filesystem support.
3343
3344 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3345
3346         * src/c++20/tzdb.cc (tzdb::current_zone): Check configure macros
3347         for POSIX readlink before using filesystem::read_symlink.
3348
3349 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3350
3351         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Default to yes.
3352         * configure: Regenerate.
3353
3354 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3355
3356         * include/bits/chrono_io.h (_Parser::operator()): Set failbit
3357         early if invalid values are read when _M_need & _TimeOfDay is
3358         non-zero.
3359         * testsuite/std/time/parse.cc: Check that "25:59" cannot be
3360         parsed for "%H:%M".
3361
3362 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3363
3364         PR libstdc++/111162
3365         * include/bits/chrono_io.h (_Parser::Operator()): Check %C
3366         values are in range of year::min() to year::max().
3367         * testsuite/std/time/parse.cc: Check out of range centuries.
3368
3369 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
3370
3371         * include/std/format (__format::_Sink::_M_reset): Change second
3372         argument from iterator to offset.
3373
3374 2023-08-24  Paul Dreik  <gccpatches@pauldreik.se>
3375
3376         PR libstdc++/111102
3377         * testsuite/std/format/string.cc: Check wide character format
3378         strings with out-of-range widths.
3379
3380 2023-08-24  Paul Dreik  <gccpatches@pauldreik.se>
3381
3382         PR libstdc++/111102
3383         * include/std/format (__format::__parse_integer): Check for
3384         non-null pointer.
3385
3386 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
3387
3388         * testsuite/std/format/functions/format_to.cc: Avoid warning for
3389         unused variables.
3390
3391 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
3392
3393         * include/std/atomic: Add comment to #ifdef and fix indentation.
3394         * include/std/ostream: Check __glibcxx_syncbuf instead of
3395         __cplusplus and _GLIBCXX_HOSTED.
3396         * include/std/thread: Add comment to #ifdef.
3397
3398 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
3399
3400         * include/bits/version.def (__cpp_lib_ratio): Define.
3401         * include/bits/version.h: Regenerate.
3402         * include/std/ratio (quecto, ronto, yocto, zepto)
3403         (zetta, yotta, ronna, quetta): Define.
3404         * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Adjust
3405         dg-error line numbers.
3406
3407 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
3408
3409         * python/libstdcxx/v6/printers.py (StdLocalePrinter): New
3410         printer class.
3411         * testsuite/libstdc++-prettyprinters/locale.cc: New test.
3412
3413 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
3414
3415         PR libstdc++/110944
3416         * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Do
3417         not show template arguments.
3418         (StdVariantPrinter): Likewise.
3419         * testsuite/libstdc++-prettyprinters/compat.cc: Adjust expected
3420         output.
3421         * testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
3422         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
3423
3424 2023-08-23  François Dumont  <fdumont@gcc.gnu.org>
3425
3426         * testsuite/util/replacement_memory_operators.h
3427         (counter::scope): New, capture and reset counter count at construction and
3428         restore it at destruction.
3429         (counter::check_new): Add scope instantiation.
3430         * testsuite/23_containers/unordered_map/96088.cc (main):
3431         Add counter::scope instantiation.
3432         * testsuite/23_containers/unordered_multimap/96088.cc (main): Likewise.
3433         * testsuite/23_containers/unordered_multiset/96088.cc (main): Likewise.
3434         * testsuite/23_containers/unordered_set/96088.cc (main): Likewise.
3435         * testsuite/ext/malloc_allocator/deallocate_local.cc (main): Likewise.
3436         * testsuite/ext/new_allocator/deallocate_local.cc (main): Likewise.
3437         * testsuite/ext/throw_allocator/deallocate_local.cc (main): Likewise.
3438         * testsuite/ext/pool_allocator/allocate_chunk.cc (started): New global.
3439         (operator new(size_t)): Check started.
3440         (main): Set/Unset started.
3441         * testsuite/17_intro/no_library_allocation.cc: New test case.
3442
3443 2023-08-21  Jonathan Wakely  <jwakely@redhat.com>
3444
3445         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
3446         Call std::set_terminate before throwing the nested exception.
3447
3448 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
3449
3450         PR target/111060
3451         * include/std/format (formatter): Only define specializations
3452         for 16-bit floating-point types for C++23.
3453         * include/std/limits (numeric_limits): Likewise.
3454
3455 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
3456
3457         * include/bits/chrono_io.h (operator<<): Make uses of wide
3458         strings with streams and std::format type-dependent on _CharT.
3459         * include/std/format [!_GLIBCXX_USE_WCHAR_T] Do not use
3460         __to_wstring_numeric.
3461
3462 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
3463
3464         * include/bits/chrono_io.h (operator<<): Use __format_context.
3465         * include/std/format (__format::__format_context): New alias
3466         template.
3467         [!_GLIBCXX_USE_WCHAR_T] (wformat_args, make_wformat_arg):
3468         Disable.
3469
3470 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3471
3472         Revert:
3473         2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3474
3475         * config/locale/generic/c_locale.cc (__convert_to_v): Reuse
3476         double overload for long double if possible.
3477
3478 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3479
3480         * src/c++20/tzdb.cc (tzdata_file, leaps_file): Change type to
3481         std::string_view.
3482
3483 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3484
3485         * config/locale/generic/c_locale.cc (__convert_to_v): Reuse
3486         double overload for long double if possible.
3487
3488 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3489
3490         * src/c++98/localename.cc (is_C_locale): New function.
3491         (locale::locale(const char*)): Use is_C_locale.
3492
3493 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3494
3495         PR libstdc++/110945
3496         * include/bits/basic_string.h (basic_string::assign(Iter, Iter)):
3497         Dispatch to _M_replace or move assignment from a temporary,
3498         based on the iterator type.
3499
3500 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3501
3502         * include/std/format (formatter): Add partial specializations
3503         for extended floating-point types.
3504         * testsuite/std/format/functions/format.cc: Move test_float128()
3505         to ...
3506         * testsuite/std/format/formatter/ext_float.cc: New test.
3507
3508 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3509
3510         * include/bits/c++config (__gnu_cxx::__bfloat16_t): Define
3511         whenever __BFLT16_DIG__ is defined, not only for C++23.
3512         * include/std/limits (numeric_limits<bfloat16_t>): Likewise.
3513         (numeric_limits<_Float16>, numeric_limits<_Float32>)
3514         (numeric_limits<_Float64>): Likewise for other extended
3515         floating-point types.
3516
3517 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3518
3519         * include/experimental/internet (address_v4::to_string): Remove
3520         unused parameter name.
3521
3522 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3523
3524         * libsupc++/compare (__cmp_cat::__unseq): Make ctor consteval.
3525         * testsuite/18_support/comparisons/categories/zero_neg.cc: Prune
3526         excess errors caused by invalid consteval calls.
3527
3528 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3529
3530         * include/bits/chrono_io.h (__units_suffix_misc): Remove.
3531         (__units_suffix): Return a known suffix as string view, do not
3532         write unknown suffixes to a buffer.
3533         (__fmt_units_suffix): New function that formats the suffix using
3534         std::format_to.
3535         (operator<<, __chrono_formatter::_M_q): Use __fmt_units_suffix.
3536         (__chrono_formatter::_M_Z): Correct lifetime of wstring.
3537
3538 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3539
3540         * include/std/format [_GLIBCXX_USE_WCHAR_T]: Guard all wide
3541         string formatters with this macro.
3542         (__formatter_int::_M_format_int, __formatter_fp::format)
3543         (formatter<const void*, C>::format): Use __to_wstring_numeric
3544         instead of std::ctype::widen.
3545         (__formatter_fp::_M_localize): Use hardcoded wchar_t values
3546         instead of std::ctype::widen.
3547         * testsuite/std/format/functions/format.cc: Add more checks for
3548         wstring formatting of arithmetic types.
3549
3550 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3551
3552         * include/bits/basic_string.h (to_string(floating-point-type)):
3553         Implement using std::to_chars for C++26.
3554         * include/bits/version.def (__cpp_lib_to_string): Define.
3555         * include/bits/version.h: Regenerate.
3556         * testsuite/21_strings/basic_string/numeric_conversions/char/dr1261.cc:
3557         Adjust expected result in C++26 mode.
3558         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string.cc:
3559         Likewise.
3560         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/dr1261.cc:
3561         Likewise.
3562         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/to_wstring.cc:
3563         Likewise.
3564         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_float.cc:
3565         New test.
3566         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/to_wstring_float.cc:
3567         New test.
3568         * testsuite/21_strings/basic_string/numeric_conversions/version.cc:
3569         New test.
3570
3571 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3572
3573         * include/bits/basic_string.h (to_string(integral-type)): Use
3574         resize_and_overwrite when available.
3575         (__to_wstring_numeric): New helper functions.
3576         (to_wstring): Use std::to_string then __to_wstring_numeric.
3577         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_int.cc:
3578         Remove check for no excess capacity.
3579
3580 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3581
3582         * include/bits/basic_string.h (__resize_and_overwrite): New
3583         function.
3584         * include/bits/basic_string.tcc (__resize_and_overwrite): New
3585         function.
3586         (resize_and_overwrite): Simplify by using reserve instead of
3587         growing the string manually. Adjust for C++11 compatibility.
3588         * include/bits/cow_string.h (resize_and_overwrite): New
3589         function.
3590         (__resize_and_overwrite): New function.
3591         * include/bits/version.def (__cpp_lib_string_resize_and_overwrite):
3592         Do not depend on cxx11abi.
3593         * include/bits/version.h: Regenerate.
3594         * include/std/format (__formatter_fp::_S_resize_and_overwrite):
3595         Remove.
3596         (__formatter_fp::format, __formatter_fp::_M_localize): Use
3597         __resize_and_overwrite instead of _S_resize_and_overwrite.
3598         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
3599         Adjust for C++11 compatibility when included by ...
3600         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite_ext.cc:
3601         New test.
3602
3603 2023-08-17  Patrick Palka  <ppalka@redhat.com>
3604
3605         * include/bits/regex.h (regex_iterator::iterator_concept):
3606         Define for C++20 as per P2770R0.
3607         (regex_token_iterator::iterator_concept): Likewise.
3608         * include/std/ranges (__detail::__as_lvalue): Define.
3609         (join_view::_Iterator): Befriend join_view.
3610         (join_view::_Iterator::_M_satisfy): Use _M_get_outer
3611         instead of _M_outer.
3612         (join_view::_Iterator::_M_get_outer): Define.
3613         (join_view::_Iterator::_Iterator): Split constructor taking
3614         _Parent argument into two as per P2770R0.  Remove constraint on
3615         default constructor.
3616         (join_view::_Iterator::_M_outer): Make this data member present
3617         only when the underlying range is forward.
3618         (join_view::_Iterator::operator++): Use _M_get_outer instead of
3619         _M_outer.
3620         (join_view::_Iterator::operator--): Use __as_lvalue helper.
3621         (join_view::_Iterator::operator==): Adjust constraints as per
3622         P2770R0.
3623         (join_view::_Sentinel::__equal): Use _M_get_outer instead of
3624         _M_outer.
3625         (join_view::_M_outer): New data member when the underlying range
3626         is non-forward.
3627         (join_view::begin): Adjust definition as per P2770R0.
3628         (join_view::end): Likewise.
3629         (join_with_view::_M_outer_it): New data member when the
3630         underlying range is non-forward.
3631         (join_with_view::begin): Adjust definition as per P2770R0.
3632         (join_with_view::end): Likewise.
3633         (join_with_view::_Iterator::_M_outer_it): Make this data member
3634         present only when the underlying range is forward.
3635         (join_with_view::_Iterator::_M_get_outer): Define.
3636         (join_with_view::_Iterator::_Iterator): Split constructor
3637         taking _Parent argument into two as per P2770R0.  Remove
3638         constraint on default constructor.
3639         (join_with_view::_Iterator::_M_update_inner): Adjust definition
3640         as per P2770R0.
3641         (join_with_view::_Iterator::_M_get_inner): Likewise.
3642         (join_with_view::_Iterator::_M_satisfy): Adjust calls to
3643         _M_get_inner.  Use _M_get_outer instead of _M_outer_it.
3644         (join_with_view::_Iterator::operator==): Adjust constraints
3645         as per P2770R0.
3646         (join_with_view::_Sentinel::operator==): Use _M_get_outer
3647         instead of _M_outer_it.
3648         * testsuite/std/ranges/adaptors/p2770r0.cc: New test.
3649
3650 2023-08-17  Patrick Palka  <ppalka@redhat.com>
3651
3652         PR libstdc++/108827
3653         * include/std/ranges (__adaptor::_RangeAdaptorClosure):
3654         Convert into a CRTP class template.  Move hidden operator|
3655         friends into namespace scope and adjust their constraints.
3656         (__closure::__is_range_adaptor_closure_fn): Define.
3657         (__closure::__is_range_adaptor_closure): Define.
3658         (__adaptor::_Partial): Adjust use of _RangeAdaptorClosure.
3659         (__adaptor::_Pipe): Likewise.
3660         (views::_All): Likewise.
3661         (views::_Join): Likewise.
3662         (views::_Common): Likewise.
3663         (views::_Reverse): Likewise.
3664         (views::_Elements): Likewise.
3665         (views::_Adjacent): Likewise.
3666         (views::_AsRvalue): Likewise.
3667         (views::_Enumerate): Likewise.
3668         (views::_AsConst): Likewise.
3669         * testsuite/std/ranges/adaptors/all.cc: Reinstate assertion
3670         expecting that adding empty range adaptor closure objects to a
3671         pipeline doesn't increase the size of a pipeline.
3672
3673 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3674
3675         * include/std/format (__format::_Pres_type): Add _Pres_F.
3676         (__formatter_fp::parse): Use _Pres_F for 'F'.
3677         (__formatter_fp::format): Set __upper for _Pres_F.
3678         * testsuite/std/format/functions/format.cc: Check formatting of
3679         infinity and NaN for each presentation type.
3680
3681 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3682
3683         * include/Makefile.in: Regenerate.
3684
3685 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3686
3687         * testsuite/24_iterators/move_iterator/p2520r0.cc: Add no_pch.
3688         * testsuite/std/format/functions/format.cc: Likewise.
3689         * testsuite/std/format/functions/format_c++23.cc: Likewise.
3690
3691 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3692
3693         * testsuite/lib/dg-options.exp (add_options_for_no_pch): Remove
3694         any "-include bits/stdc++.h" from options and add the macro to
3695         the existing options instead of replacing them.
3696
3697 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
3698
3699         * include/bits/basic_string.tcc (resize_and_overwrite): Invoke
3700         the callable with the same size as resize_and_overwrite was
3701         called with.
3702         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
3703         Check with small values for the new size.
3704         * testsuite/std/format/functions/format.cc: Check wide
3705         formatting of double values that produce small strings.
3706         * testsuite/std/format/functions/format_c++23.cc: New test.
3707
3708 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
3709
3710         * include/bits/version.def (stds): Update value for C++23.
3711         * include/bits/version.h: Regenerate.
3712
3713 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
3714
3715         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
3716         Fix name of upstream file this was derived from.
3717         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
3718         Likewise.
3719         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
3720         Likewise.
3721         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
3722         Likewise.
3723         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h: Likewise.
3724
3725 2023-08-16  Arsen Arsenović  <arsen@aarsen.me>
3726
3727         * libsupc++/typeinfo: Switch to bits/version.h for
3728         __cpp_lib_constexpr_typeinfo.
3729         * libsupc++/new: Switch to bits/version.h for
3730         __cpp_lib_{launder,hardware_interference_size,destroying_delete}.
3731         (launder): Guard behind __cpp_lib_launder.
3732         (hardware_destructive_interference_size)
3733         (hardware_constructive_interference_size): Guard behind
3734         __cpp_lib_hardware_interference_size.
3735         * libsupc++/exception: Switch to bits/version.h for
3736         __cpp_lib_uncaught_exceptions.
3737         (uncaught_exceptions): Guard behind __cpp_lib_uncaught_exceptions.
3738         * libsupc++/compare: Switch to bits/version.h for
3739         __cpp_lib_three_way_comparison.
3740         (three_way_comparable, three_way_comparable_with)
3741         (compare_three_way, weak_order, strong_order, partial_order):
3742         Guard behind __cpp_lib_three_way_comparison >= 201907L.
3743         * include/std/chrono: Drop __cpp_lib_chrono definition.
3744         * include/std/vector: Switch to bits/version.h for
3745         __cpp_lib_erase_if.
3746         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3747         * include/std/variant: Switch to bits/version.h for
3748         __cpp_lib_variant.  Guard whole header behind that FTM.
3749         * include/std/utility: Switch to bits/version.h for
3750         __cpp_lib_{exchange_function,constexpr_algorithms,as_const},
3751         __cpp_lib_{integer_comparison_functions,to_underlying}, and
3752         __cpp_lib_unreachable.
3753         (exchange): Guard behind __cpp_lib_exchange_function.
3754         (cmp_equal, cmp_not_equal, cmp_less, cmp_greater, cmp_less_equal)
3755         (cmp_greater_equal, in_range): Guard behind
3756         __cpp_lib_integer_comparison_functions.
3757         (to_underlying): Guard behind __cpp_lib_to_underlying.
3758         (unreachable): Guard behind __cpp_lib_unreachable.
3759         * include/std/type_traits: Switch to bits/version.h for
3760         __cpp_lib_is_{null_pointer,final,nothrow_convertible,aggregate},
3761         __cpp_lib_is_{constant_evaluated,invocable,layout_compatible},
3762         __cpp_lib_is_{pointer_interconvertible,scoped_enum,swappable},
3763         __cpp_lib_{logical_traits,reference_from_temporary,remove_cvref},
3764         __cpp_lib_{result_of_sfinae,transformation_trait_aliases},
3765         __cpp_lib_{type_identity,type_trait_variable_templates},
3766         __cpp_lib_{unwrap_ref,void_t,integral_constant_callable},
3767         __cpp_lib_{bool_constant,bounded_array_traits}, and
3768         __cpp_lib_has_unique_object_representations.
3769         (integral_constant::operator()): Guard behind
3770         __cpp_lib_integral_constant_callable.
3771         (bool_constant): Guard behind __cpp_lib_bool_constant.
3772         (conjunction, disjunction, negation, conjunction_v, disjunction_v)
3773         (negation_v): Guard behind __cpp_lib_logical_traits.
3774         (is_null_pointer): Guard behind __cpp_lib_is_null_pointer.
3775         (is_final): Guard behind __cpp_lib_is_final.
3776         (is_nothrow_convertible, is_nothrow_convertible_v): Guard behind
3777         __cpp_lib_is_nothrow_convertible.
3778         (remove_const_t, remove_volatile_t, remove_cv_t)
3779         (add_const_t, add_volatile_t, add_cv_t): Guard behind
3780         __cpp_lib_transformation_trait_aliases.
3781         (void_t): Guard behind __cpp_lib_void_t.
3782         (is_swappable_with_v, is_nothrow_swappable_with_v)
3783         (is_swappable_with, is_nothrow_swappable_with): Guard behind
3784         __cpp_lib_is_swappable.
3785         (is_nothrow_invocable_r, is_invocable_r, invoke_result)
3786         (is_invocable, invoke_result_t): Guard behind
3787         __cpp_lib_is_invocable.
3788         (alignment_of_v, extent_v, has_virtual_destructor_v)
3789         (is_abstract_v, is_arithmetic_v, is_array_v)
3790         (is_assignable_v, is_base_of_v, is_class_v, is_compound_v)
3791         (is_constructible_v, is_const_v, is_convertible_v)
3792         (is_copy_assignable_v, is_copy_constructible_v)
3793         (is_default_constructible_v, is_destructible_v)
3794         (is_empty_v, is_enum_v, is_final_v, is_floating_point_v)
3795         (is_function_v, is_fundamental_v, is_integral_v)
3796         (is_invocable_r_v, is_invocable_v, is_literal_type_v)
3797         (is_lvalue_reference_v, is_member_function_pointer_v)
3798         (is_member_object_pointer_v, is_member_pointer_v)
3799         (is_move_assignable_v, is_move_constructible_v)
3800         (is_nothrow_assignable_v, is_nothrow_constructible_v)
3801         (is_nothrow_copy_assignable_v, is_nothrow_copy_constructible_v)
3802         (is_nothrow_default_constructible_v, is_nothrow_destructible_v)
3803         (is_nothrow_invocable_r_v, is_nothrow_invocable_v)
3804         (is_nothrow_move_assignable_v, is_nothrow_move_constructible_v)
3805         (is_null_pointer_v, is_object_v, is_pod_v, is_pointer_v)
3806         (is_polymorphic_v, is_reference_v, is_rvalue_reference_v)
3807         (is_same_v, is_scalar_v, is_signed_v, is_standard_layout_v)
3808         (is_trivially_assignable_v, is_trivially_constructible_v)
3809         (is_trivially_copyable_v, is_trivially_copy_assignable_v)
3810         (is_trivially_copy_constructible_v)
3811         (is_trivially_default_constructible_v)
3812         (is_trivially_destructible_v, is_trivially_move_assignable_v)
3813         (is_trivially_move_constructible_v, is_trivial_v, is_union_v)
3814         (is_unsigned_v, is_void_v, is_volatile_v, rank_v, as variadic):
3815         Guard behind __cpp_lib_type_trait_variable_templates.
3816         (has_unique_object_representations)
3817         (has_unique_object_representations_v): Guard behind
3818         __cpp_lib_has_unique_object_representation.
3819         (is_aggregate): Guard behind __cpp_lib_is_aggregate.
3820         (remove_cvref, remove_cvref_t): Guard behind
3821         __cpp_lib_remove_cvref.
3822         (type_identity, type_identity_t): Guard behind
3823         __cpp_lib_type_identity.
3824         (unwrap_reference, unwrap_reference_t, unwrap_ref_decay)
3825         (unwrap_ref_decay_t): Guard behind __cpp_lib_unwrap_ref.
3826         (is_bounded_array_v, is_unbounded_array_v, is_bounded_array)
3827         (is_unbounded_array): Guard behind __cpp_lib_bounded_array_traits.
3828         (is_scoped_enum, is_scoped_enum_v): Guard behind
3829         __cpp_lib_is_scoped_enum.
3830         (reference_constructs_from_temporary)
3831         (reference_constructs_from_temporary_v): Guard behind
3832         __cpp_lib_reference_from_temporary.
3833         * include/std/tuple: Switch to bits/version.h for
3834         __cpp_lib_{constexpr_tuple,tuple_by_type,apply_make_from_tuple}.
3835         (get<T>): Guard behind __cpp_lib_tuple_by_type.
3836         (apply): Guard behind __cpp_lib_apply.
3837         (make_from_tuple): Guard behind __cpp_lib_make_from_tuple.
3838         * include/std/syncstream: Switch to bits/version.h for
3839         __cpp_lib_syncbuf.  Guard header behind that FTM.
3840         * include/std/string_view: Switch to bits/version.h for
3841         __cpp_lib_{string_{view,contains},constexpr_string_view} and
3842         __cpp_lib_starts_ends_with.
3843         (basic_string_view::starts_with, basic_string_view::ends_with):
3844         Guard behind __cpp_lib_starts_ends_with.
3845         [C++23 && _GLIBCXX_HOSTED && !defined(__cpp_lib_string_contains)]:
3846         Assert as impossible ithout a bug in C++23.
3847         * include/std/string: Switch to bits/version.h for
3848         __cpp_lib_erase_if.
3849         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3850         * include/std/thread: Switch to bits/version.h for
3851         __cpp_lib_jthread.
3852         * include/std/stop_token: Switch to bits/version.h for
3853         __cpp_lib_jthread.
3854         * include/std/spanstream: Switch to bits/version.h for
3855         __cpp_lib_spanstream.  Guard header behind that FTM.
3856         * include/std/span: Switch to bits/version.h for __cpp_lib_span.
3857         Guard header behind that FTM.
3858         * include/std/source_location: Switch to bits/version.h for
3859         __cpp_lib_source_location.  Guard header with that FTM.
3860         * include/std/shared_mutex: Switch to bits/version.h for
3861         __cpp_lib_shared{,_timed}_mutex.
3862         (shared_mutex): Guard behind __cpp_lib_shared_mutex.
3863         * include/std/semaphore: Switch to bits/version.h for
3864         __cpp_lib_semaphore.  Guard header behind that FTM.
3865         * include/std/ranges: Switch to bits/version.h for
3866         __cpp_lib_ranges_{zip,chunk{,_by},slide,join_with},
3867         __cpp_lib_ranges_{repeat_stride,cartesian_product,as_rvalue},
3868         and __cpp_lib_ranges_{as_const,enumerate,iota}.
3869         (ranges::zip et al, ranges::chunk et al, ranges::slide et al)
3870         (ranges::chunk_by et al, ranges::join_with et al)
3871         (ranges::stride et al, ranges::cartesian_product et al)
3872         (ranges::as_rvalue et al, ranges::as_const et al)
3873         (ranges::enumerate et al): Guard behind appropriate FTM.
3874         * include/std/optional: Switch to bits/version.h for
3875         __cpp_lib_optional.  Guard header behind that FTM.
3876         * include/std/numeric: Switch to bits/version.h for
3877         __cpp_lib_{gcd{,_lcm},lcm,constexpr_numeric,interpolate}
3878         and __cpp_lib_parallel_algorithm.
3879         (gcd, lcm): Guard behind __cpp_lib_gcd_lcm.
3880         (midpoint): Guard behind __cpp_lib_interpolate.
3881         * include/std/numbers: Switch to bits/version.h for
3882         __cpp_lib_math_constants.  Guard header behind that FTM.
3883         * include/std/mutex: Switch to bits/version.h for
3884         __cpp_lib_scoped_lock.
3885         (scoped_Lock): Guard behind __cpp_lib_scoped_lock.
3886         * include/std/memory_resource: Switch to bits/version.h for
3887         __cpp_lib_{polymorphic_allocator,memory_resource}.
3888         (synchronized_pool_resource): Guard behind
3889         __cpp_lib_memory_resource >= 201603L.
3890         (polymorphic_allocator): Guard behind
3891         __cpp_lib_polymorphic_allocator.
3892         * include/std/memory: Switch to bits/version.h for
3893         __cpp_lib_{parallel_algorithm,atomic_value_initialization}.
3894         * include/std/list: Switch to bits/version.h for
3895         __cpp_lib_erase_if.
3896         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3897         * include/std/latch: Switch to bits/version.h for __cpp_lib_latch.
3898         Guard header behind that FTM.
3899         * include/std/iterator: Switch to bits/version.h for
3900         __cpp_lib_null_iterators.
3901         * include/std/iomanip: Switch to bits/version.h for
3902         __cpp_lib_quoted_string_io.
3903         (quoted): Guard behind __cpp_lib_quoted_string_io.
3904         * include/std/functional: Switch to bits/version.h for
3905         __cpp_lib_{invoke{,_r},constexpr_functional,bind_front} and
3906         __cpp_lib_{not_fn,booyer_moore_searcher}.
3907         (invoke): Guard behind __cpp_lib_invoke.
3908         (invoke_r): Guard behind __cpp_lib_invoke_r.
3909         (bind_front): Guard behind __cpp_lib_bind_front.
3910         (not_fn): Guard behind __cpp_lib_not_fn.
3911         (boyer_moore_searcher, boyer_moore_horspool_searcher): Guard
3912         definition behind __cpp_lib_boyer_moore_searcher.
3913         * include/std/forward_list: Switch to bits/version.h for
3914         __cpp_lib_erase_if.
3915         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3916         * include/std/format: Switch to bits/version.h for
3917         __cpp_lib_format.  Guard header behind that FTM.
3918         * include/std/filesystem: Switch to bits/version.h for
3919         __cpp_lib_filesystem.  Guard header behind that FTM.
3920         * include/std/expected: Switch to bits/version.h for
3921         __cpp_lib_expected.  Guard header behind it.
3922         * include/std/execution: Switch to bits/version.h for
3923         __cpp_lib_{execution,parallel_algorithm}.  Guard header behind
3924         either.
3925         * include/std/deque: Switch to bits/version.h for
3926         __cpp_lib_erase_if.
3927         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3928         * include/std/coroutine: Switch to bits/version.h for
3929         __cpp_lib_coroutine.  Guard header behind that FTM.
3930         * include/std/concepts: Switch to bits/version.h for
3931         __cpp_lib_concepts.  Guard header behind that FTM.
3932         * include/std/complex: Switch to bits/version.h for
3933         __cpp_lib_{complex_udls,constexpr_complex}.
3934         (operator""if, operator""i, operator""il): Guard behind
3935         __cpp_lib_complex_udls.
3936         * include/std/charconv: Swtich to bits/version.h for
3937         __cpp_lib_{to_chars,constexpr_charconv}.
3938         * include/std/bitset: Switch to bits/version.h for
3939         __cpp_lib_constexpr_bitset.
3940         * include/std/bit: Switch to bits/version.h for
3941         __cpp_lib_{bit_cast,byteswap,bitops,int_pow2,endian}.
3942         (bit_cast): Guard behind __cpp_lib_bit_cast.
3943         (byteswap): Guard behind __cpp_lib_byteswap.
3944         (rotl, rotr, countl_zero, countl_one, countr_zero, countr_one)
3945         (popcount): Guard behind __cpp_lib_bitops.
3946         (has_single_bit, bit_ceil, bit_floor, bit_width): Guard behind
3947         __cpp_lib_int_pow2.
3948         (endian): Guard behind __cpp_lib_endian.
3949         * include/std/barrier: Switch to bits/version.h for
3950         __cpp_lib_barrier.  Guard header behind that FTM.
3951         * include/std/atomic: Switch to bits/version.h for
3952         __cpp_lib_atomic_{is_always_lock_free,float,ref}
3953         and __cpp_lib_lock_free_type_aliases.
3954         (*::is_always_lock_free): Guard behind
3955         __cpp_lib_atomic_is_always_lock_free.
3956         (atomic<float>): Guard behind __cpp_lib_atomic_float.
3957         (atomic_ref): Guard behind __cpp_lib_atomic_ref.
3958         (atomic_signed_lock_free, atomic_unsigned_lock_free): Guard behind
3959         __cpp_lib_atomic_lock_free_type_aliases.
3960         * include/std/array: Switch to bits/version.h for
3961         __cpp_lib_to_array.
3962         (to_array): Guard behind __cpp_lib_to_array.
3963         * include/std/any: Switch to bits/version.h for __cpp_lib_any.
3964         Guard header behind that FTM.
3965         * include/std/algorithm: Switch to bits/version.h for
3966         __cpp_lib_parallel_algorithm.
3967         * include/c_global/cstddef: Switch to bits/version.h for
3968         __cpp_lib_byte.
3969         (byte): Guard behind __cpp_lib_byte.
3970         * include/c_global/cmath: Switch to bits/version.h for
3971         __cpp_lib_{hypot,interpolate}.
3972         (hypot3): Guard behind __cpp_lib_hypot.
3973         (lerp): Guard behind __cpp_lib_interpolate.
3974         * include/c_compatibility/stdatomic.h: Switch to
3975         bits/stl_version.h for __cpp_lib_atomic.  Guard header behind that
3976         FTM.
3977         * include/bits/utility.h: Switch to bits/version.h for
3978         __cpp_lib_{tuple_element_t,integer_sequence,ranges_zip}.
3979         (tuple_element_t): Guard behind __cpp_lib_tuple_element_t.
3980         (integer_sequence et al): Guard behind __cpp_lib_integer_sequence.
3981         * include/bits/uses_allocator_args.h: Switch to bits/version.h for
3982         __cpp_lib_make_obj_using_allocator.  Guard header behind that FTM.
3983         * include/bits/unordered_map.h: Switch to bits/version.h for
3984         __cpp_lib_unordered_map_try_emplace.
3985         (try_emplace): Guard behind __cpp_lib_unordered_map_try_emplace.
3986         * include/bits/unique_ptr.h: Switch to bits/version.h for
3987         __cpp_lib_{constexpr_memory,make_unique}.
3988         (make_unique): Guard behind __cpp_lib_make_unique.
3989         * include/bits/stl_vector.h: Switch to bits/version.h for
3990         __cpp_lib_constexpr_vector.
3991         * include/bits/stl_uninitialized.h: Switch to bits/version.h for
3992         __cpp_lib_raw_memory_algorithms.
3993         (uninitialized_default_construct)
3994         (uninitialized_default_construct_n, uninitialized_move)
3995         (uninitialized_move_n, uninitialized_value_construct)
3996         (uninitialized_value_construct_n): Guard behind
3997         __cpp_lib_raw_memory_algorithms.
3998         * include/bits/stl_tree.h: Switch to bits/version.h for
3999         __cpp_lib_generic_associative_lookup.
4000         * include/bits/stl_stack.h: Switch to bits/version.h for
4001         __cpp_lib_adaptor_iterator_pair_constructor.
4002         (stack): Guard iterator-pair constructor behind
4003         __cpp_lib_adaptor_iterator_pair_constructor.
4004         * include/bits/stl_queue.h: Switch to bits/version.h for
4005         __cpp_lib_adaptor_iterator_pair_constructor.
4006         (queue): Guard iterator-pair constructor behind
4007         __cpp_lib_adaptor_iterator_pair_constructor.
4008         * include/bits/stl_pair.h: Switch to bits/version.h for
4009         __cpp_lib_{concepts,tuples_by_type}.
4010         (get): Guard type-getting overloads behind
4011         __cpp_lib_tuples_by_type.
4012         * include/bits/stl_map.h: Switch to bits/version.h for
4013         __cpp_lib_map_try_emplace.
4014         (map<>::try_emplace): Guard behind __cpp_lib_map_try_emplace.
4015         * include/bits/stl_list.h: Switch to bits/version.h for
4016         __cpp_lib_list_remove_return_type.
4017         (__remove_return_type, _GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG)
4018         [C++20]: guard behind __cpp_lib_list_remove_return_type instead.
4019         * include/bits/stl_iterator.h: Switch to bits/version.h for
4020         __cpp_lib_{constexpr_iterator,array_constexpr} and
4021         __cpp_lib_{make_reverse_iterator,move_iterator_concept}.
4022         (make_reverse_iterator): Guard behind
4023         __cpp_lib_make_reverse_iterator.
4024         (iterator_concept et al): Guard __cpp_lib_move_iterator_concept
4025         changes behind that FTM.
4026         * include/bits/stl_function.h: Switch to bits/version.h for
4027         __cpp_lib_transparent_operators.
4028         (equal_to, not_equal_to, greater, less, greater_equal)
4029         (less_equal, bit_and, bit_or, bit_xor, bit_not, logical_and)
4030         (logical_or, logical_not, plus, minus, multiplies, divides)
4031         (modulus, negate): Guard '= void' fwdecls behind
4032         __cpp_lib_transparent_operators.
4033         (plus<void>, minus<void>, multiplies<void>, divides<void>)
4034         (modulus<void>, negate<void>, logical_and<void>, logical_or<void>)
4035         (logical_not<void>, bit_and<void>, bit_or<void>, bit_xor<void>)
4036         (equal_to<void>, not_equal_to<void>, greater<void>, less<void>)
4037         (greater_equal<void>, less_equal<void>, bit_not<void>)
4038         (__has_is_transparent): Guard behind
4039         __cpp_lib_transparent_operators.
4040         * include/bits/stl_algobase.h: Switch to bits/version.h for
4041         __cpp_lib_robust_nonmodifying_seq_ops.
4042         (robust equal, mismatch): Guard behind
4043         __cpp_lib_nonmember_container_access.
4044         * include/bits/stl_algo.h: Swtich to bits/version.h for
4045         __cpp_lib_{clamp,sample}.
4046         (clamp): Guard behind __cpp_lib_clamp.
4047         (sample): Guard behind __cpp_lib_sample.
4048         * include/bits/specfun.h: Switch to bits/version.h for
4049         __cpp_lib_math_special_functions and __STDCPP_MATH_SPEC_FUNCS__.
4050         * include/bits/shared_ptr_base.h: Switch to bits/version.h for
4051         __cpp_lib_{smart_ptr_for_overwrite,shared_ptr_arrays}.
4052         (_Sp_overwrite_tag): Guard behind
4053         __cpp_lib_smart_ptr_for_overwrite.
4054         * include/bits/shared_ptr_atomic.h: Switch to bits/version.h for
4055         __cpp_lib_atomic_shared_ptr.
4056         * include/bits/shared_ptr.h: Switch to bits/version.h for
4057         __cpp_lib_{enable_shared_from_this,shared_ptr_weak_type}.
4058         (shared_ptr<T>::weak_type): Guard behind
4059         __cpp_lib_shared_ptr_weak_type.
4060         (enable_shared_from_this<T>::weak_from_this): Guard behind
4061         __cpp_lib_enable_shared_from_this.
4062         * include/bits/ranges_cmp.h: Switch to bits/version.h for
4063         __cpp_lib_ranges.
4064         * include/bits/ranges_algo.h: Switch to bits/version.h for
4065         __cpp_lib_{shift,ranges_{contains,find_last,fold,iota}}.
4066         * include/bits/range_access.h: Switch to bits/version.h for
4067         __cpp_lib_nonmember_container_access
4068         (size, empty, data): Guard behind
4069         __cpp_lib_nonmember_container_access.
4070         (ssize): Guard behind __cpp_lib_ssize.
4071         * include/bits/ptr_traits.h: Switch to bits/version.h. for
4072         __cpp_lib_{constexpr_memory,to_address}.
4073         (to_address): Guard behind __cpp_lib_to_address.
4074         * include/bits/node_handle.h: Switch to bits/version.h for
4075         __cpp_lib_node_extract.  Guard header behind that FTM.
4076         * include/bits/move_only_function.h: Switch to bits/version.h for
4077         __cpp_lib_move_only_function.  Guard header behind that FTM.
4078         * include/bits/move.h: Switch to bits/version.h for
4079         __cpp_lib_addressof_constexpr.
4080         * include/bits/ios_base.h: Switch to bits/version.h for
4081         __cpp_lib_ios_noreplace.
4082         (noreplace): Guard with __cpp_lib_ios_noreplace.
4083         * include/bits/hashtable.h: Switch to bits/version.h for
4084         __cpp_lib_generic_unordered_lookup.
4085         (_M_equal_range_tr, _M_count_tr, _M_find_tr): Guard behind
4086         __cpp_lib_generic_unordered_lookup.
4087         * include/bits/forward_list.h: Switch to bits/version.h for
4088         __cpp_lib_list_remove_return_type.
4089         (__remove_return_type): Guard behind
4090         __cpp_lib_list_remove_return_type.
4091         * include/bits/erase_if.h: Switch to bits/version.h for
4092         __cpp_lib_erase_if.
4093         * include/bits/cow_string.h: Switch to bits/version.h for
4094         __cpp_lib_constexpr_string.
4095         * include/bits/chrono.h: Swtich to bits/version.h for
4096         __cpp_lib_chrono{,_udls}.
4097         (ceil): Guard behind __cpp_lib_chrono.
4098         (operator""ns et al): Guard behind __cpp_lib_chrono_udls.
4099         * include/bits/char_traits.h: Switch to bits/version.h for
4100         __cpp_lib_constexpr_char_traits.
4101         * include/bits/basic_string.h: Switch to bits/version.h for
4102         __cpp_lib_{constexpr_string,string_{resize_and_overwrite,udls}}.
4103         (resize_and_overwrite): Guard behind
4104         __cpp_lib_string_resize_and_overwrite.
4105         (operator""s): Guard behind __cpp_lib_string_udls.
4106         * include/bits/atomic_wait.h: Switch to bits/version.h for
4107         __cpp_lib_atomic_wait.  Guard header behind that FTM.
4108         * include/bits/atomic_base.h: Switch to bits/version.h for
4109         __cpp_lib_atomic_value_initialization and
4110         __cpp_lib_atomic_flag_test.
4111         (atomic_flag::test): Guard behind __cpp_lib_atomic_flag_test,
4112         rather than C++20.
4113         * include/bits/allocator.h: Switch to bits/version.h for
4114         __cpp_lib_incomplete_container_elements.
4115         * include/bits/alloc_traits.h: Switch to using bits/version.h for
4116         __cpp_lib_constexpr_dynamic_alloc and
4117         __cpp_lib_allocator_traits_is_always_equal.
4118         * include/bits/align.h: Switch to bits/version.h for defining
4119         __cpp_lib_assume_aligned.
4120         (assume_aligned): Guard with __cpp_lib_assume_aligned.
4121         * include/bits/algorithmfwd.h: Switch to bits/version.h for
4122         defining __cpp_lib_constexpr_algorithms.
4123         * include/std/stacktrace: Switch to bits/version.h for
4124         __cpp_lib_stacktrace.  Guard header behind that FTM.
4125         * testsuite/23_containers/array/tuple_interface/get_neg.cc:
4126         Update line numbers.
4127
4128 2023-08-16  Arsen Arsenović  <arsen@aarsen.me>
4129
4130         * include/Makefile.am (bits_freestanding): Add version.h.
4131         (allcreated): Add version.h.
4132         (${bits_srcdir}/version.h): New rule.  Regenerates
4133         version.h out of version.{def,tpl}.
4134         * include/Makefile.in: Regenerate.
4135         * include/bits/version.def: New file.  Declares a list of
4136         all feature test macros, their values and their preconditions.
4137         * include/bits/version.tpl: New file.  Turns version.def
4138         into a sequence of #if blocks.
4139         * include/bits/version.h: New file.  Generated from
4140         version.def.
4141         * include/std/version: Replace with a __glibcxx_want_all define
4142         and bits/version.h include.
4143
4144 2023-08-14  Paul Dreik  <gccpatches@pauldreik.se>
4145
4146         PR libstdc++/110860
4147         * include/std/format (__formatter_fp::format): Use frexp instead
4148         of log10.
4149
4150 2023-08-12  Ken Matsui  <kmatsui@gcc.gnu.org>
4151
4152         * include/std/type_traits (true_type): Use __bool_constant
4153         instead.
4154         (false_type): Likewise.
4155         (bool_constant): Likewise.
4156
4157 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
4158
4159         PR libstdc++/110990
4160         * include/std/format (_Seq_sink::get): Only call _M_overflow if
4161         its precondition is met.
4162         (_Iter_sink::_M_finish): Likewise.
4163         (_Iter_sink<C, ContigIter>::_M_overflow): Only switch to the
4164         internal buffer after running out of space.
4165         (_Iter_sink<C, ContigIter>::_M_finish): Do not use _M_overflow.
4166         (_Counting_sink::count): Likewise.
4167         * testsuite/std/format/functions/format_to_n.cc: Check cases
4168         where the output fits into the buffer.
4169
4170 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
4171
4172         PR libstdc++/104167
4173         * include/bits/chrono_io.h (operator|=, operator|): Add noexcept
4174         to _ChronoParts operators.
4175         (from_stream, parse): Define new functions.
4176         (__detail::_Parse, __detail::_Parser): New class templates.
4177         * include/std/chrono (__cpp_lib_chrono): Define to 201907L for
4178         C++20.
4179         * include/std/version (__cpp_lib_chrono): Likewise.
4180         * testsuite/20_util/duration/arithmetic/constexpr_c++17.cc:
4181         Adjust expected value of feature test macro.
4182         * testsuite/20_util/duration/io.cc: Test parsing.
4183         * testsuite/std/time/clock/file/io.cc: Likewise.
4184         * testsuite/std/time/clock/gps/io.cc: Likewise.
4185         * testsuite/std/time/clock/system/io.cc: Likewise.
4186         * testsuite/std/time/clock/tai/io.cc: Likewise.
4187         * testsuite/std/time/clock/utc/io.cc: Likewise.
4188         * testsuite/std/time/day/io.cc: Likewise.
4189         * testsuite/std/time/month/io.cc: Likewise.
4190         * testsuite/std/time/month_day/io.cc: Likewise.
4191         * testsuite/std/time/weekday/io.cc: Likewise.
4192         * testsuite/std/time/year/io.cc: Likewise.
4193         * testsuite/std/time/year_month/io.cc: Likewise.
4194         * testsuite/std/time/year_month_day/io.cc: Likewise.
4195         * testsuite/std/time/syn_c++20.cc: Check value of macro and for
4196         the existence of parse and from_stream in namespace chrono.
4197         * testsuite/std/time/clock/local/io.cc: New test.
4198         * testsuite/std/time/parse.cc: New test.
4199
4200 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
4201
4202         PR libstdc++/110860
4203         * include/std/format (__formatter_fp::format): Do not call log10
4204         with zero values.
4205
4206 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
4207
4208         * python/libstdcxx/v6/printers.py (StdChronoCalendarPrinter):
4209         Check for out-of-range month an weekday indices.
4210         * testsuite/libstdc++-prettyprinters/chrono.cc: Check invalid
4211         month and weekday values.
4212
4213 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
4214
4215         * include/bits/stl_iterator.h (__clamped_iter_cat_t): Remove.
4216
4217 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
4218
4219         PR libstdc++/110974
4220         * include/std/format (_Spec::_S_parse_width_or_precision): Check
4221         for empty range before dereferencing iterator.
4222         * testsuite/std/format/string.cc: Check for expected exception.
4223         Fix expected exception message in test_pr110862() and actually
4224         call it.
4225
4226 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
4227
4228         PR libstdc++/110968
4229         * include/std/format (__formatter_fp::format): Check return
4230         value of _M_localize.
4231         * testsuite/std/format/functions/format.cc: Check classic
4232         locale.
4233
4234 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
4235
4236         PR libstdc++/110970
4237         * include/bits/stl_iterator.h (__detail::__move_iter_cat): Use
4238         __iter_category_t.
4239         (iterator_traits<common_iterator<I, S>>::_S_iter_cat): Likewise.
4240         (__detail::__basic_const_iterator_iter_cat): Likewise.
4241         * include/bits/stl_iterator_base_types.h (__iterator_category_t):
4242         Rename to __iter_category_t.
4243
4244 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4245
4246         * include/bits/chrono.h (duration_cast): Do not use braces
4247         around statements for C++11 constexpr rules.
4248         * include/bits/stl_algobase.h (__lg): Rewrite as a single
4249         statement for C++11 constexpr rules.
4250         * include/experimental/bits/fs_path.h (path::string): Use
4251         _GLIBCXX17_CONSTEXPR not _GLIBCXX_CONSTEXPR for 'if constexpr'.
4252         * include/std/charconv (__to_chars_8): Initialize variable for
4253         C++17 constexpr rules.
4254
4255 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4256
4257         * include/bits/list.tcc (list::sort(Cmp)): Fix -Wsign-compare
4258         warning for loop condition.
4259
4260 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4261
4262         * include/std/complex: Add diagnostic pragma for clang.
4263
4264 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4265
4266         * include/bits/shared_ptr_atomic.h (atomic): Change class-head
4267         to struct.
4268         * include/bits/stl_tree.h (_Rb_tree_merge_helper): Change
4269         class-head to struct in friend declaration.
4270         * include/std/chrono (tzdb_list::_Node): Likewise.
4271         * include/std/future (_Task_state_base, _Task_state): Likewise.
4272         * include/std/scoped_allocator (__inner_type_impl): Likewise.
4273         * include/std/valarray (_BinClos, _SClos, _GClos, _IClos)
4274         (_ValFunClos, _RefFunClos): Change class-head to struct.
4275
4276 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4277
4278         * include/bits/alloc_traits.h (allocate): Add [[maybe_unused]]
4279         attribute.
4280         * include/bits/regex_executor.tcc: Remove name of unused
4281         parameter.
4282         * include/bits/shared_ptr_atomic.h (atomic_is_lock_free):
4283         Likewise.
4284         * include/bits/stl_uninitialized.h: Likewise.
4285         * include/bits/streambuf_iterator.h (operator==): Likewise.
4286         * include/bits/uses_allocator.h: Likewise.
4287         * include/c_global/cmath (isfinite, isinf, isnan): Likewise.
4288         * include/std/chrono (zoned_time): Likewise.
4289         * include/std/future (__future_base::_S_allocate_result):
4290         Likewise.
4291         (packaged_task): Likewise.
4292         * include/std/optional (_Optional_payload_base): Likewise.
4293         * include/std/scoped_allocator (__inner_type_impl): Likewise.
4294         * include/std/tuple (_Tuple_impl): Likewise.
4295
4296 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4297
4298         * include/bits/new_allocator.h (__new_allocator): Define copy
4299         assignment operator as defaulted.
4300         * include/std/complex (complex<float>, complex<double>)
4301         (complex<long double>): Define copy constructor as defaulted.
4302
4303 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
4304
4305         * include/std/format: Fix some warnings.
4306         (__format::__write(Ctx&, basic_string_view<CharT>)): Remove
4307         unused function template.
4308
4309 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
4310
4311         PR libstdc++/110860
4312         * include/std/format (__formatter_fp::format): Do not use
4313         __builtin_abs and __builtin_log10 with arbitrary floating-point
4314         types.
4315
4316 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
4317
4318         PR libstdc++/110917
4319         * include/std/format (__format::_Iter_sink<CharT, OutIter>):
4320         Constrain partial specialization for contiguous iterators to
4321         require the value type to be CharT.
4322         * testsuite/std/format/functions/format_to.cc: New test.
4323
4324 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
4325
4326         PR libstdc++/110862
4327         * include/std/format (_Scanner::_M_on_replacement_field):
4328         Check for expected '}' before incrementing iterator.
4329         * testsuite/std/format/string.cc: Check "{0:{0}" format string.
4330
4331 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
4332
4333         * configure: Regenerate.
4334
4335 2023-08-07  Alan Modra  <amodra@gmail.com>
4336
4337         * configure: Regenerate.
4338
4339 2023-08-07  Alexander von Gluck IV  <kallisti5@unixzen.com>
4340
4341         * configure: Regenerate.
4342
4343 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
4344
4345         * configure: Regenerate.
4346
4347 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
4348
4349         * configure: Regenerate.
4350
4351 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
4352
4353         * configure: Regenerate.
4354
4355 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
4356
4357         * configure: Regenerate.
4358
4359 2023-08-06  François Dumont  <fdumont@gcc.gnu.org>
4360
4361         * config/abi/pre/gnu-versioned-namespace.ver: Add __cxa_call_terminate
4362         symbol export.
4363
4364 2023-07-30  François Dumont  <fdumont@gcc.gnu.org>
4365
4366         * src/c++11/compatibility-ldbl-facets-aliases.h: Replace #define with
4367         proper #error.
4368         * src/c++11/locale-inst-monetary.h: Likewise.
4369         * src/c++11/locale-inst-numeric.h: Likewise.
4370
4371 2023-07-27  Jonathan Wakely  <jwakely@redhat.com>
4372
4373         PR libstdc++/108046
4374         * include/std/format (__formatter_fp::format): Ensure __expc is
4375         always set for all presentation types. Set __z correctly for
4376         zero precision.
4377         * testsuite/std/format/functions/format.cc: Check problem cases.
4378
4379 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
4380
4381         PR libstdc++/110807
4382         * testsuite/23_containers/vector/bool/110807.cc: Require c++11.
4383
4384 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
4385
4386         PR libstdc++/110807
4387         * include/bits/stl_bvector.h (vector(const vector&)): Access
4388         iterators before allocating.
4389         * include/bits/vector.tcc (vector<bool>::_M_insert_range):
4390         Likewise.
4391         * testsuite/23_containers/vector/bool/110807.cc: New test.
4392
4393 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
4394
4395         * include/bits/algorithmfwd.h (random_shuffle): Add deprecated
4396         attribute.
4397         * include/bits/stl_algo.h (random_shuffle): Correct comments.
4398         * testsuite/25_algorithms/random_shuffle/1.cc: Disable
4399         deprecated warnings.
4400         * testsuite/25_algorithms/random_shuffle/59603.cc: Likewise.
4401         * testsuite/25_algorithms/random_shuffle/moveable.cc: Likewise.
4402         * testsuite/25_algorithms/random_shuffle/deprecated.cc: New
4403         test.
4404
4405 2023-07-26  Nathaniel Shead  <nathanieloshead@gmail.com>
4406
4407         * testsuite/25_algorithms/equal/constexpr_neg.cc: Update diagnostic
4408         locations.
4409         * testsuite/26_numerics/gcd/105844.cc: Likewise.
4410         * testsuite/26_numerics/lcm/105844.cc: Likewise.
4411
4412 2023-07-24  Deev Patel  <pateldeev@nevada.unr.edu>
4413
4414         * include/std/format (_Formatting_scanner::_M_on_chars): Add
4415         missing constexpr specifier.
4416         (_Formatting_scanner::_M_format_arg): Likewise.
4417
4418 2023-07-24  Jonathan Wakely  <jwakely@redhat.com>
4419
4420         PR libstdc++/110653
4421         * include/bits/basic_string.h [!HAVE_STOF] (stof): Do not
4422         throw an exception for zero result.
4423         [HAVE_BROKEN_STRTOLD] (stold): Do not use strtold.
4424
4425 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4426
4427         PR libstdc++/110077
4428         * src/c++17/floating_from_chars.cc (from_chars): Only define
4429         _Float128 overload when using __strfromf128.
4430
4431 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4432
4433         PR libstdc++/110593
4434         * include/bits/chrono.h (duration): Improve static assert
4435         messages.
4436         (__is_ratio): Move to ...
4437         * include/std/ratio (__is_ratio): ... here.
4438         (__is_ratio_v): New variable template and partial
4439         specialization.
4440         (__are_both_ratios): New function template.
4441         (__ratio_multiply, ratio_equal, ratio_less, __ratio_add):
4442         Add static assertion.
4443         * testsuite/20_util/ratio/requirements/type_constraints.cc:
4444         New test.
4445         * testsuite/20_util/duration/requirements/typedefs_neg1.cc:
4446         Adjust expected error.
4447         * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
4448         Likewise.
4449
4450 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4451
4452         * include/bits/chrono_io.h (__formatter_chrono::_M_format):
4453         Do not set __is_neg for hh_mm_ss before calling
4454         _M_format_to_ostream. Change __print_sign lambda to only check
4455         __is_neg for durations and hh_mm_ss types.
4456         (__formatter_chrono::_M_format_to_ostream): Only check __is_neg
4457         for duration types.
4458         * testsuite/std/time/hh_mm_ss/io.cc: Check negative values.
4459
4460 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4461
4462         PR libstdc++/110719
4463         * include/bits/chrono_io.h (__formatter_chrono::_S_floor_seconds):
4464         Handle duration and hh_mm_ss.
4465         * testsuite/20_util/duration/io.cc: Check locale-specific
4466         formats.
4467         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
4468
4469 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4470
4471         * include/std/format (__write_padded): Initialize first element
4472         of array to avoid a -Wmaybe-uninitialized warning.
4473
4474 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4475
4476         PR libstdc++/110719
4477         * include/bits/chrono_io.h (__formatter_chrono::_M_parse): Fix
4478         allowed modifiers for %z and %Z. Fix -Wparentheses and
4479         -Wnarrowing warnings.
4480         (__formatter_chrono::_M_format): Call new functions for %d, %e,
4481         %H, %I, %m and %M.
4482         (__formatter_chrono::_M_c): Use _S_floor_seconds to remove
4483         subsecond precision.
4484         (__formatter_chrono::_M_C_y_Y): Use _M_locale_fmt to handle
4485         modifiers.
4486         (__formatter_chrono::_M_e): Replace with _M_d_e and use
4487         _M_locale_fmt.
4488         (__formatter_chrono::_M_I): Replace with _M_H_I and use
4489         _M_locale_fmt.
4490         (__formatter_chrono::_M_m): New function.
4491         (__formatter_chrono::_M_M): New function.
4492         (__formatter_chrono::_M_r): Use _M_locale_fmt.
4493         (__formatter_chrono::_M_S): Likewise.
4494         (__formatter_chrono::_M_u_w): Likewise.
4495         (__formatter_chrono::_M_U_V_W): Likewise.
4496         (__formatter_chrono::_M_X): Use _S_floor_seconds.
4497         (__formatter_chrono::_M_Z): Fix untested branch for wchar_t.
4498         (__formatter_chrono::_S_altnum): Remove function.
4499         (__formatter_chrono::_S_dd_zero_fill): Remove function.
4500         (__formatter_chrono::_S_floor_seconds): New function.
4501         (__formatter_chrono::_M_locale_fmt): New function.
4502         * testsuite/std/time/clock/system/io.cc: Adjust expected output
4503         for locale-specific formats and check modified formats.
4504         * testsuite/std/time/clock/utc/io.cc: Likewise.
4505         * testsuite/std/time/zoned_time/io.cc: New test.
4506
4507 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4508
4509         PR libstdc++/110708
4510         * include/bits/chrono_io.h (__formatter_chrono::_M_parse): Only
4511         allow a single modifier.
4512         * testsuite/std/time/format.cc: Check multiple modifiers.
4513
4514 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4515
4516         PR libstdc++/110653
4517         * testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc:
4518         Remove dg-require-string-conversions.
4519         * testsuite/21_strings/basic_string/numeric_conversions/char/stof.cc:
4520         Likewise.
4521         * testsuite/21_strings/basic_string/numeric_conversions/char/stoi.cc:
4522         Likewise.
4523         * testsuite/21_strings/basic_string/numeric_conversions/char/stol.cc:
4524         Likewise.
4525         * testsuite/21_strings/basic_string/numeric_conversions/char/stoul.cc:
4526         Likewise.
4527
4528 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4529
4530         PR libstdc++/110653
4531         * include/bits/basic_string.h [!_GLIBCXX_HAVE_STRTOF] (stof):
4532         Define in terms of std::stod.
4533
4534 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
4535
4536         PR libstdc++/110653
4537         * include/bits/basic_string.h [_GLIBCXX_HAVE_STRTOF] (stof):
4538         Define.
4539         [_GLIBCXX_HAVE_STRTOLD] (stold): Define.
4540         * include/c_global/cstdlib [_GLIBCXX_HAVE_STRTOF] (strtof):
4541         Declare in namespace std.
4542         [_GLIBCXX_HAVE_STRTOLD] (strtold): Likewise.
4543
4544 2023-07-13  Jonathan Wakely  <jwakely@redhat.com>
4545
4546         PR libstdc++/110653
4547         * include/bits/basic_string.h (stoi, stol, stoul, stod): Do not
4548         depend on _GLIBCXX_USE_C99_STDLIB.
4549         [__LONG_WIDTH__ == __LONG_LONG_WIDTH__] (stoll, stoull): Define
4550         in terms of stol and stoul respectively.
4551         [__DBL_MANT_DIG__ == __LDBL_MANT_DIG__] (stold): Define in terms
4552         of stod.
4553
4554 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
4555
4556         PR libstdc++/95048
4557         * testsuite/27_io/filesystem/path/construct/95048.cc: Check
4558         conversions to wide strings.
4559         * testsuite/experimental/filesystem/path/construct/95048.cc:
4560         Likewise.
4561
4562 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
4563
4564         * config/io/basic_file_stdio.cc: Define LFS macros.
4565         (__basic_file<char>::open): Use fopen unconditionally.
4566         (get_file_offset): Use lseek unconditionally.
4567         (__basic_file<char>::seekoff): Likewise.
4568         (__basic_file<char>::showmanyc): Use fstat unconditionally.
4569
4570 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
4571
4572         PR libstdc++/110574
4573         * acinclude.m4 (GLIBCXX_CHECK_LFS): Check for fseeko and ftello
4574         and define _GLIBCXX_USE_FSEEKO_FTELLO.
4575         * config.h.in: Regenerate.
4576         * configure: Regenerate.
4577         * config/io/basic_file_stdio.cc (xwrite) [_GLIBCXX_USE_STDIO_PURE]:
4578         Check for fwrite error correctly.
4579         (__basic_file<char>::xsgetn) [_GLIBCXX_USE_STDIO_PURE]: Check for
4580         fread error correctly.
4581         (get_file_offset): New function.
4582         (__basic_file<char>::seekoff) [_GLIBCXX_USE_STDIO_PURE]: Use
4583         fseeko if available. Use get_file_offset instead of return value
4584         of fseek.
4585         (__basic_file<char>::showmanyc): Use get_file_offset.
4586
4587 2023-07-12  Ken Matsui  <kmatsui@gcc.gnu.org>
4588
4589         * include/std/type_traits (__make_unsigned_selector): Use
4590         __is_enum built-in trait.
4591         (__make_signed_selector): Likewise.
4592         (__underlying_type_impl): Likewise.
4593
4594 2023-07-06  Tianqiang Shuai  <1101282468@qq.com>
4595
4596         * config/io/basic_file_stdio.cc (xwrite) [USE_STDIO_PURE]: Fix
4597         first argument.
4598
4599 2023-07-06  Jonathan Wakely  <jwakely@redhat.com>
4600
4601         PR libstdc++/110574
4602         * doc/xml/manual/configure.xml: Describe stdio_pure argument to
4603         --enable-cstdio.
4604         * doc/html/manual/configure.html: Regenerate.
4605
4606 2023-07-05  Thomas Rodgers  <trodgers@redhat.com>
4607
4608         * testsuite/25_algorithms/pstl/alg_sorting/set.cc: Delete
4609         file.
4610         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
4611         New file.
4612         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
4613         Likewise.
4614         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
4615         Likewise.
4616         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
4617         Likewise.
4618         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h:
4619         Likewise.
4620
4621 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4622
4623         * testsuite/23_containers/forward_list/debug/iterator1_neg.cc:
4624         Skip as UNSUPPORTED for C++98 mode.
4625         * testsuite/23_containers/forward_list/debug/iterator3_neg.cc:
4626         Likewise.
4627
4628 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4629
4630         PR libstdc++/110542
4631         * include/bits/stl_uninitialized.h (__uninitialized_default_n):
4632         Do not use std::fill_n during constant evaluation.
4633
4634 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4635
4636         * include/bits/vector.tcc (_M_default_append): Replace try-block
4637         with RAII types.
4638
4639 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4640
4641         * include/bits/iterator_concepts.h (projected): Add typename.
4642
4643 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
4644
4645         * testsuite/27_io/headers/iosfwd/synopsis.cc: Make wsyncbuf and
4646         wosyncstream depend on _GLIBCXX_USE_CXX11_ABI.
4647
4648 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
4649
4650         * include/pstl/pstl_config.h (_PSTL_PRAGMA_SIMD_SCAN,
4651         _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN, _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN):
4652         Define to OpenMP 5.0 pragmas even for GCC 10.0+.
4653         (_PSTL_UDS_PRESENT): Define to 1 for GCC 10.0+.
4654
4655 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
4656
4657         * include/bits/alloc_traits.h (_Destroy): Qualify call.
4658         * include/bits/stl_construct.h (_Destroy, _Destroy_n): Likewise.
4659         * testsuite/23_containers/vector/cons/destroy-adl.cc: New test.
4660
4661 2023-07-03  Iain Sandoe  <iain@sandoe.co.uk>
4662
4663         * testsuite/lib/libstdc++.exp: Remove additional flag handled
4664         by Darwin specs.
4665
4666 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
4667
4668         PR libstdc++/110432
4669         * acinclude.m4 (GLIBCXX_CHECK_INIT_PRIORITY): New.
4670         * config.h.in: Regenerate.
4671         * configure: Regenerate.
4672         * configure.ac: Use GLIBCXX_CHECK_INIT_PRIORITY.
4673         * include/std/iostream: Use new autoconf macro as well as
4674         __has_attribute.
4675         * src/c++98/ios_base_init.h: Use new autoconf macro instead of
4676         __has_attribute.
4677
4678 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
4679
4680         * src/c++11/random.cc (random_device::_M_init): Add maybe_unused
4681         attribute.
4682
4683 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
4684
4685         PR libstdc++/105081
4686         * src/c++11/random.cc (random_device::_M_init): Throw
4687         std::system_error when the requested device is a valid token but
4688         not available at runtime.
4689
4690 2023-06-30  Hans-Peter Nilsson  <hp@axis.com>
4691
4692         PR libstdc++/108672
4693         * include/pstl/unseq_backend_simd.h (__simd_or): Re-apply using
4694         __INT32_TYPE__ instead of int32_t.
4695
4696 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
4697
4698         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define consistently
4699         with USE_ATOMIC_LIST_HEAD.
4700         (list_mutex): Replace global object with function. Use local
4701         static object when std::mutex constructor isn't constexpr.
4702
4703 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
4704
4705         PR libstdc++/110462
4706         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check that
4707         copy_file_range can be called with loff_t* arguments.
4708         * configure: Regenerate.
4709         * src/filesystem/ops-common.h (copy_file_copy_file_range):
4710         Use loff_t for offsets.
4711
4712 2023-06-29  Tom Tromey  <tromey@adacore.com>
4713
4714         * testsuite/lib/gdb-test.exp (gdb-test): Relax type-printer
4715         regexp.
4716
4717 2023-06-28  Jan Hubicka  <jh@suse.cz>
4718
4719         PR middle-end/109849
4720         * include/bits/c++config (std::__terminate): Mark cold.
4721         * include/bits/functexcept.h: Mark everything as cold.
4722         * libsupc++/exception: Mark terminate and unexpected as cold.
4723
4724 2023-06-26  Thomas Rodgers  <trodgers@redhat.com>
4725
4726         * include/pstl/algorithm_fwd.h: Synchronize with upstream.
4727         * include/pstl/algorithm_impl.h: Likewise.
4728         * include/pstl/execution_defs.h: Likewise.
4729         * include/pstl/execution_impl.h: Likewise.
4730         * include/pstl/glue_algorithm_impl.h: Likewise.
4731         * include/pstl/glue_execution_defs.h: Likewise.
4732         * include/pstl/glue_memory_impl.h: Likewise.
4733         * include/pstl/glue_numeric_impl.h: Likewise.
4734         * include/pstl/memory_impl.h: Likewise.
4735         * include/pstl/numeric_fwd.h: Likewise.
4736         * include/pstl/numeric_impl.h: Likewise.
4737         * include/pstl/parallel_backend.h: Likewise.
4738         * include/pstl/parallel_backend_serial.h: Likewise.
4739         * include/pstl/parallel_backend_tbb.h: Likewise.
4740         * include/pstl/parallel_impl.h: Likewise.
4741         * include/pstl/pstl_config.h: Likewise.
4742         * include/pstl/unseq_backend_simd.h: Likewise.
4743         * include/pstl/utils.h: Likewise.
4744         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc:
4745         Likewise.
4746         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc:
4747         Likewise.
4748         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc:
4749         Likewise.
4750         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc:
4751         Likewise.
4752         * testsuite/25_algorithms/pstl/alg_merge/merge.cc: Likewise.
4753         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc:
4754         Likewise.
4755         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc:
4756         Likewise.
4757         * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc:
4758         Likewise.
4759         * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc:
4760         Likewise.
4761         * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc:
4762         Likewise.
4763         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc:
4764         Likewise.
4765         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc:
4766         Likewise.
4767         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc:
4768         Likewise.
4769         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc:
4770         Likewise.
4771         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc:
4772         Likewise.
4773         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc:
4774         Likewise.
4775         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc:
4776         Likewise.
4777         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc:
4778         Likewise.
4779         * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc:
4780         Likewise.
4781         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc:
4782         Likewise.
4783         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc:
4784         Likewise.
4785         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc:
4786         Likewise.
4787         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc:
4788         Likewise.
4789         * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc:
4790         Likewise.
4791         * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc:
4792         Likewise.
4793         * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc:
4794         Likewise.
4795         * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc:
4796         Likewise.
4797         * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc:
4798         Likewise.
4799         * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc:
4800         Likewise.
4801         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc:
4802         Likewise.
4803         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc:
4804         Likewise.
4805         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc:
4806         Likewise.
4807         * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc:
4808         Likewise.
4809         * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc:
4810         Likewise.
4811         * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc:
4812         Likewise.
4813         * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc:
4814         Likewise.
4815         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc:
4816         Likewise.
4817         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc:
4818         Likewise.
4819         * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc:
4820         Likewise.
4821         * testsuite/25_algorithms/pstl/alg_sorting/includes.cc:
4822         Likewise.
4823         * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc:
4824         Likewise.
4825         * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc:
4826         Likewise.
4827         * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc:
4828         Likewise.
4829         * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc:
4830         Likewise.
4831         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc:
4832         Likewise.
4833         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc:
4834         Likewise.
4835         * testsuite/25_algorithms/pstl/alg_sorting/set.cc:
4836         Likewise.
4837         * testsuite/25_algorithms/pstl/alg_sorting/sort.cc:
4838         Likewise.
4839         * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc:
4840         Likewise.
4841         * testsuite/26_numerics/pstl/numeric_ops/reduce.cc:
4842         Likewise.
4843         * testsuite/26_numerics/pstl/numeric_ops/scan.cc:
4844         Likewise.
4845         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
4846         Likewise.
4847         * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc:
4848         Likewise.
4849         * testsuite/util/pstl/test_utils.h:
4850         Likewise.
4851
4852 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4853
4854         PR libstdc++/110239
4855         * include/std/format (__format::__parse_integer): Fix buffer
4856         overflow for wide chars.
4857         (formatter<const void*, C>::format): Cast to uintptr_t instead
4858         of uint64_t.
4859         * testsuite/std/format/string.cc: Test too-large widths.
4860
4861 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4862
4863         * include/bits/iterator_concepts.h (projected): Replace class
4864         template with alias template denoting an ADL-proofed helper.
4865         (incremental_traits<projected<Iter, Proj>>): Remove.
4866         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
4867         New test.
4868
4869 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4870
4871         * include/debug/helper_functions.h (__get_distance)
4872         (__check_singular, __valid_range_aux, __valid_range): Qualify
4873         calls to disable ADL.
4874         (__check_singular_aux(const _Safe_iterator_base*)): Declare
4875         overload that was previously found via ADL.
4876
4877 2023-06-23  Jonathan Wakely  <jwakely@redhat.com>
4878
4879         * include/bits/vector.tcc (_M_realloc_insert): Replace try-block
4880         with RAII types.
4881
4882 2023-06-20  Jonathan Wakely  <jwakely@redhat.com>
4883
4884         * include/std/array (to_array(T(&)[N])): Remove redundant
4885         condition.
4886         (to_array(T(&&)[N])): Remove redundant std::move.
4887
4888 2023-06-16  Alexandre Oliva  <oliva@adacore.com>
4889
4890         * testsuite/20_util/from_chars/4.cc: Skip long double on
4891         aarch64-rtems.
4892
4893 2023-06-16  Joel Brobecker  <brobecker@adacore.com>
4894
4895         * configure.ac ["x${with_newlib}" = "xyes"]: Define
4896         HAVE_HYPOTF.  Add compile-checks for various long double
4897         math functions as well.
4898         * configure: Regenerate.
4899
4900 2023-06-14  Jonny Grant  <jg@jguk.org>
4901
4902         * doc/xml/manual/extensions.xml: Remove demangle exception
4903         description and include.
4904         * doc/html/manual/ext_demangling.html: Regenerate.
4905
4906 2023-06-10  Hans-Peter Nilsson  <hp@axis.com>
4907
4908         * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc (main)
4909         [! SIMULATOR_TEST]: Also exclude running test05.
4910         * testsuite/27_io/basic_istream/ignore/char/94749.cc: Ditto.
4911
4912 2023-06-09  Ken Matsui  <kmatsui@cs.washington.edu>
4913
4914         * include/std/type_traits: Use using instead of typedef
4915
4916 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4917
4918         PR libstdc++/110077
4919         * src/c++17/floating_from_chars.cc (from_chars) <_Float128>:
4920         Only define if _Float128 and long double have different
4921         representations.
4922
4923 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4924
4925         PR libstdc++/100285
4926         * include/experimental/internet [IPPROTO_TCP || IPPROTO_UDP]
4927         (basic_endpoint, basic_resolver_entry, resolver_base)
4928         (basic_resolver_results, basic_resolver): Only define if the tcp
4929         or udp protocols will be defined.
4930
4931 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4932
4933         * acinclude.m4 (libtool_VERSION): Update to 6.0.33.
4934         * configure: Regenerate.
4935         * doc/xml/manual/abi.xml: Add libstdc++.so.6.0.33.
4936         * doc/html/manual/abi.html: Regenerate.
4937
4938 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4939
4940         PR libstdc++/110149
4941         * include/std/format (formatter<const void*, charT>::parse):
4942         Only alow 0 and P for C++26 and non-strict modes.
4943         (formatter<const void*, charT>::format): Use toupper for P
4944         type, and insert zero-fill characters for 0 option.
4945         * testsuite/std/format/functions/format.cc: Check pointer
4946         formatting. Only check P2510R3 extensions conditionally.
4947         * testsuite/std/format/parse_ctx.cc: Only check P2510R3
4948         extensions conditionally.
4949
4950 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4951
4952         PR libstdc++/110167
4953         * include/std/array (to_array): Initialize arrays of trivial
4954         types using memcpy. For non-trivial types, use lambda
4955         expressions instead of a separate helper function.
4956         (__to_array): Remove.
4957         * testsuite/23_containers/array/creation/110167.cc: New test.
4958
4959 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4960
4961         * testsuite/23_containers/deque/modifiers/emplace/52799.cc:
4962         Removed.
4963         * testsuite/23_containers/deque/modifiers/emplace/const_iterator.cc:
4964         Removed.
4965         * testsuite/23_containers/list/modifiers/emplace/52799.cc:
4966         Removed.
4967         * testsuite/23_containers/list/modifiers/emplace/const_iterator.cc:
4968         Removed.
4969         * testsuite/23_containers/vector/modifiers/emplace/52799.cc:
4970         Removed.
4971         * testsuite/23_containers/vector/modifiers/emplace/const_iterator.cc:
4972         Removed.
4973         * testsuite/23_containers/deque/modifiers/emplace/1.cc: New
4974         test.
4975         * testsuite/23_containers/list/modifiers/emplace/1.cc: New
4976         test.
4977         * testsuite/23_containers/vector/modifiers/emplace/1.cc: New
4978         test.
4979
4980 2023-06-07  Jakub Jelinek  <jakub@redhat.com>
4981
4982         PR libstdc++/110145
4983         * testsuite/20_util/to_chars/double.cc: Include <cfloat>.
4984         (double_to_chars_test_cases,
4985         double_scientific_precision_to_chars_test_cases_2,
4986         double_fixed_precision_to_chars_test_cases_2): #if out 1e126, 4.91e-6
4987         and 5.547e-6 tests if FLT_EVAL_METHOD is negative or larger than 1.
4988         Add unconditional tests with corresponding double constants
4989         0x1.7a2ecc414a03fp+418, 0x1.4981285e98e79p-18 and
4990         0x1.7440bbff418b9p-18.
4991
4992 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4993
4994         * testsuite/util/testsuite_abi.cc (check_version): Re-add
4995         CXXABI_1.3.14.
4996
4997 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4998
4999         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
5000         Require effective target exceptions_enabled instead of using
5001         dg-skip-if.
5002         * testsuite/23_containers/vector/capacity/constexpr.cc: Expect
5003         shrink_to_fit() to be a no-op without exceptions enabled.
5004         * testsuite/23_containers/vector/capacity/shrink_to_fit.cc:
5005         Likewise.
5006         * testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
5007         Require effective target exceptions_enabled.
5008         * testsuite/ext/malloc_allocator/check_allocate_max_size.cc:
5009         Likewise.
5010         * testsuite/ext/mt_allocator/check_allocate_max_size.cc:
5011         Likewise.
5012         * testsuite/ext/new_allocator/check_allocate_max_size.cc:
5013         Likewise.
5014         * testsuite/ext/pool_allocator/check_allocate_max_size.cc:
5015         Likewise.
5016         * testsuite/ext/throw_allocator/check_allocate_max_size.cc:
5017         Likewise.
5018
5019 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
5020
5021         * testsuite/20_util/duration/cons/2.cc: Use values that aren't
5022         affected by rounding.
5023         * testsuite/20_util/from_chars/5.cc: Cast arithmetic result to
5024         double before comparing for equality.
5025         * testsuite/20_util/from_chars/6.cc: Likewise.
5026         * testsuite/20_util/variant/86874.cc: Use values that aren't
5027         affected by rounding.
5028         * testsuite/25_algorithms/lower_bound/partitioned.cc: Compare to
5029         original value instead of to floating-point-literal.
5030         * testsuite/26_numerics/random/discrete_distribution/cons/range.cc:
5031         Cast arithmetic result to double before comparing for equality.
5032         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/range.cc:
5033         Likewise.
5034         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/range.cc:
5035         Likewise.
5036         * testsuite/26_numerics/valarray/transcend.cc (eq): Check that
5037         the absolute difference is less than 0.01 instead of comparing
5038         to two decimal places.
5039         * testsuite/27_io/basic_istream/extractors_arithmetic/char/01.cc:
5040         Cast arithmetic result to double before comparing for equality.
5041         * testsuite/27_io/basic_istream/extractors_arithmetic/char/09.cc:
5042         Likewise.
5043         * testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc:
5044         Likewise.
5045         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc:
5046         Likewise.
5047         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc:
5048         Likewise.
5049         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/10.cc:
5050         Likewise.
5051         * testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
5052
5053 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
5054
5055         Revert:
5056         2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5057
5058         * configure.ac: Use AS_IF.
5059         * configure: Regenerate.
5060
5061 2023-06-07  Thomas Schwinge  <thomas@codesourcery.com>
5062
5063         * testsuite/lib/prune.exp (libstdc++-dg-prune): Support
5064         'UNSUPPORTED: [...]: exception handling disabled'.
5065
5066 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5067
5068         * testsuite/util/testsuite_abi.cc (check_version): Add
5069         CXXABI_1.3.15 symver and make it the latestp. Remove
5070         GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
5071
5072 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5073             Jakub Jelinek  <jakub@redhat.com>
5074
5075         PR libstdc++/104772
5076         * include/std/limits: (numeric_limits<__float128>): Define
5077         for __STRICT_ANSI__ as well.
5078         * testsuite/18_support/numeric_limits/128bit.cc: Remove
5079         check for __STRICT_ANSI__.
5080
5081 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5082
5083         * configure.ac: Use AS_IF.
5084         * configure: Regenerate.
5085
5086 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
5087
5088         PR libstdc++/109822
5089         * include/experimental/bits/simd_builtin.h (_S_store): Rewrite
5090         to avoid casts to other vector types. Implement store as
5091         succession of power-of-2 sized memcpy to avoid PR90424.
5092
5093 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
5094
5095         PR libstdc++/110054
5096         * include/experimental/bits/simd_builtin.h (_S_masked_store):
5097         Call into deduced ABI's SimdImpl after conversion.
5098         * include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
5099         Don't use _mm_maskmoveu_si128. Use the generic fall-back
5100         implementation. Also fix masked stores without SSE2, which
5101         were not doing anything before.
5102
5103 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
5104
5105         * include/experimental/bits/simd.h (__bit_cast): Use
5106         __gnu__::__vector_size__ instead of gnu::vector_size.
5107
5108 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5109
5110         PR libstdc++/110139
5111         * include/std/array (__array_traits<T, 0>::operator T*()): Make
5112         conversion operator explicit.
5113         (array::front): Use size_type as subscript operand.
5114         (array::data): Use static_cast to make conversion explicit.
5115         * testsuite/23_containers/array/element_access/110139.cc: New
5116         test.
5117
5118 2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
5119
5120         * include/bits/locale_classes.tcc: Remove check for
5121         codecvt<char8_t, char, mbstate_t> facet.
5122
5123 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5124
5125         * src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
5126         close-on-exec flag on file descriptors.
5127
5128 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
5129
5130         PR libstdc++/108178
5131         * src/filesystem/ops-common.h (do_copy_file): Check for empty
5132         files by trying to read a character.
5133         * testsuite/27_io/filesystem/operations/copy_file_108178.cc:
5134         New test.
5135
5136 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
5137
5138         * acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
5139         * config.h.in: Regenerate.
5140         * configure: Regenerate.
5141         * src/filesystem/ops-common.h (copy_file_copy_file_range):
5142         Define new function.
5143         (do_copy_file): Use it.
5144
5145 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
5146
5147         * acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
5148         * config.h.in: Regenerate.
5149         * configure: Regenerate.
5150         * src/filesystem/ops-common.h (copy_file_sendfile): Define new
5151         function for sendfile logic. Loop to support large files. Skip
5152         zero-length files.
5153         (do_copy_file): Use it.
5154
5155 2023-06-04  Jason Merrill  <jason@redhat.com>
5156
5157         PR c++/97720
5158         * libsupc++/eh_call.cc (__cxa_call_terminate): Take void*.
5159         * config/abi/pre/gnu.ver: Add it.
5160
5161 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
5162
5163         * include/parallel/algobase.h: Include <parallel/search.h>.
5164
5165 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
5166
5167         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
5168         Add const to equality operator.
5169
5170 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
5171
5172         * include/std/expected (expected::and_then, expected::or_else)
5173         (expected::transform_error): Use _M_val and _M_unex instead of
5174         calling value() and error(), as per LWG 3938.
5175         (expected::transform): Likewise. Remove incorrect std::move
5176         calls from lvalue overloads.
5177         (expected<void, E>::and_then, expected<void, E>::or_else)
5178         (expected<void, E>::transform): Use _M_unex instead of calling
5179         error().
5180         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
5181         and transform, and for std::expected<void, E>.
5182         * testsuite/20_util/expected/lwg3938.cc: New test.
5183
5184 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
5185
5186         PR libstdc++/110060
5187         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
5188         Remove.
5189         (vector::size, vector::capacity): Remove calls to _M_invariant.
5190         * include/bits/vector.tcc (vector::_M_fill_assign): Add
5191         optimization hint to reallocating path.
5192         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
5193         Likewise.
5194         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
5195         to...
5196         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
5197         ...here. Check assign(FwdIter, FwdIter) too.
5198         * testsuite/23_containers/vector/types/1.cc: Revert addition
5199         of -Wno-stringop-overread option.
5200
5201 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
5202
5203         * doc/xml/manual/evolution.xml: Document removal of implicit
5204         allocator rebinding extensions in strict mode and for C++20.
5205         * doc/html/*: Regenerate.
5206
5207 2023-06-01  Jason Merrill  <jason@redhat.com>
5208
5209         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
5210         handlers in the cleanup phase.
5211
5212 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
5213
5214         PR libstdc++/110050
5215         * include/experimental/bits/simd.h (__vectorized_sizeof): With
5216         __have_neon_a32 only single-precision float works (in addition
5217         to integers).
5218
5219 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
5220
5221         * include/bits/stl_algo.h
5222         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
5223         * include/bits/stl_algobase.h: ...here.
5224         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
5225         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
5226         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
5227         Move...
5228         * include/parallel/algobase.h: ...here.
5229         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
5230         includes. Include <bits/stl_algobase.h>.
5231
5232 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5233
5234         PR libstdc++/109818
5235         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
5236         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
5237         * config.h.in: Regenerate.
5238         * configure: Regenerate.
5239         * include/c_global/cmath (float_t, double_t): Guard using new
5240         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
5241
5242 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5243
5244         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
5245         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
5246         for C99 rounding functions to here.
5247         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
5248         functions from here.
5249         * config.h.in: Regenerate.
5250         * configure: Regenerate.
5251         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
5252         of _GLIBCXX_USE_C99_MATH_TR1.
5253         * include/bits/random.tcc: Likewise.
5254         * include/c_compatibility/math.h: Likewise.
5255         * include/c_global/cmath: Likewise.
5256         * include/ext/random: Likewise.
5257         * include/ext/random.tcc: Likewise.
5258         * include/std/complex: Likewise.
5259         * testsuite/20_util/from_chars/4.cc: Likewise.
5260         * testsuite/20_util/from_chars/8.cc: Likewise.
5261         * testsuite/26_numerics/complex/proj.cc: Likewise.
5262         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
5263         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
5264         Likewise.
5265         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
5266         Likewise.
5267         * testsuite/util/testsuite_random.h: Likewise.
5268
5269 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5270
5271         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
5272         function.
5273         (vector::size(), vector::capacity()): Call _M_invariant().
5274         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
5275         * testsuite/23_containers/vector/types/1.cc: Add suppression for
5276         false positive warning (PR110060).
5277
5278 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5279
5280         PR libstdc++/109921
5281         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
5282         defined before trying to use _Float128.
5283
5284 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5285
5286         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
5287         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
5288         * configure: Regenerate.
5289
5290 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5291
5292         * include/bits/unique_lock.h: Include <bits/error_constants.h>
5293         here for std::errc constants.
5294         * include/std/mutex: Do not include <bits/error_constants.h> and
5295         <exception> here.
5296
5297 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5298
5299         * configure.ac: Replace use of -o operator for test.
5300         * configure: Regenerate.
5301
5302 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5303
5304         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
5305         noexcept to all constructors except the default constructor.
5306         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
5307         (scoped_allocator_adaptor::outer_allocator): Likewise.
5308         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
5309
5310 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5311
5312         PR libstdc++/104772
5313         * include/std/limits (numeric_limits<__float128>): Define.
5314         * testsuite/18_support/numeric_limits/128bit.cc: New test.
5315
5316 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5317
5318         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
5319         msp430 to all 16-bit targets.
5320         * configure: Regenerate.
5321
5322 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5323
5324         PR libstdc++/109921
5325         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
5326         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
5327         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
5328         binary64.
5329         (from_chars(const char*, const char*, double&, chars_format)):
5330         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
5331         (from_chars(const char*, const char*, _Float128&, chars_format))
5332         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
5333         defined, otherwise parse a long double and convert to _Float128.
5334
5335 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
5336
5337         PR libstdc++/109922
5338         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
5339         Add deprecated attribute to non-standard overload.
5340         * doc/xml/manual/evolution.xml: Document deprecation.
5341         * doc/html/*: Regenerate.
5342         * testsuite/27_io/manipulators/standard/char/1.cc: Add
5343         dg-warning for expected deprecated warning.
5344         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
5345         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
5346         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
5347
5348 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
5349
5350         * testsuite/20_util/from_chars/4.cc: Skip long double test06
5351         on x86_64-vxworks.
5352         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
5353         x86_64-vxworks.
5354
5355 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
5356
5357         PR libstdc++/109822
5358         * include/experimental/bits/simd.h (to_native): Use int NTTP
5359         as specified in PTS2.
5360         (to_compatible): Likewise. Add missing tag to call mask
5361         generator ctor.
5362         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
5363         test.
5364
5365 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
5366
5367         * testsuite/experimental/simd/tests/integer_operators.cc:
5368         Compute expected value differently to avoid getting turned into
5369         a vector shift.
5370
5371 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
5372
5373         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
5374         double <-> (u)long conversion tests conditional on sizeof(long
5375         double) and sizeof(long).
5376
5377 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
5378
5379         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
5380         Negative __y is UB, so prefer signed compare.
5381
5382 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
5383
5384         * testsuite/util/testsuite_allocator.h (PointerBase): Add
5385         relational operators.
5386
5387 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
5388
5389         * testsuite/20_util/to_chars/long_double.cc: Expect execution
5390         fail on x86-vxworks.
5391
5392 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
5393
5394         PR libstdc++/109949
5395         * include/experimental/bits/simd.h (__intrinsic_type): If
5396         __ALTIVEC__ is defined, map gnu::vector_size types to their
5397         corresponding __vector T types without losing unsignedness of
5398         integer types. Also prefer long long over long.
5399         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
5400         object to the expected unsigned vector type.
5401
5402 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
5403
5404         PR libstdc++/109261
5405         * include/experimental/bits/simd.h (__intrinsic_type):
5406         Specialize __intrinsic_type<double, 8> and
5407         __intrinsic_type<double, 16> in any case, but provide the member
5408         type only with __aarch64__.
5409
5410 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
5411
5412         PR libstdc++/109261
5413         * include/experimental/bits/simd_neon.h (_S_reduce): Add
5414         constexpr and make NEON implementation conditional on
5415         not __builtin_is_constant_evaluated.
5416
5417 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
5418
5419         PR libstdc++/109261
5420         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
5421         Avoid vector builtin subscripting in constant expressions.
5422         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
5423         (const_where_expression, where_expression, where)
5424         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
5425         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
5426         internal APIs).
5427         * include/experimental/bits/simd_builtin.h (__vector_permute)
5428         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
5429         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
5430         (_MaskImplBuiltin::_S_store): Add constexpr.
5431         (_CommonImplBuiltin::_S_store_bool_array)
5432         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
5433         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
5434         constant_evaluated case.
5435         * include/experimental/bits/simd_fixed_size.h
5436         (_S_masked_load): Reword comment.
5437         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
5438         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
5439         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
5440         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
5441         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
5442         constexpr.
5443         (_SimdTuple::operator[], _M_set): Add constexpr and add
5444         constant_evaluated case.
5445         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
5446         * include/experimental/bits/simd_scalar.h: Add constexpr.
5447         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
5448         constexpr and add constant_evaluated case.
5449         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
5450         (_S_less_equal): Value-initialize to satisfy constexpr
5451         evaluation.
5452         (_MaskImplX86::_S_load): Add constant_evaluated case.
5453         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
5454         case. Value-initialize local variables.
5455         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
5456         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
5457         case.
5458         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
5459         test.
5460
5461 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
5462
5463         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
5464         __infn into #ifdef'ed block.
5465         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
5466         constants only when used.
5467         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
5468         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
5469         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
5470         Likewise.
5471         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
5472         Move totest and expect1 into #ifdef'ed block.
5473
5474 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
5475
5476         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
5477         * doc/html/manual/strings.html: Regenerate.
5478
5479 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
5480
5481         PR libstdc++/109883
5482         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
5483
5484 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
5485
5486         PR libstdc++/109883
5487         * include/c_global/cmath (atan2, fmod, pow): Move
5488         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
5489         __gnu_cxx::__bfloat16_t overloads.
5490         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
5491         Likewise.
5492         (fma): Move __gnu_cxx::__promote_3 using template after
5493         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
5494
5495 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
5496
5497         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
5498         checks for float_round_style and float_denorm_style.
5499
5500 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
5501
5502         * include/bits/c++config: Add system_header pragma.
5503
5504 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
5505
5506         * include/std/expected (expected::and_then, expected::or_else)
5507         (expected::transform, expected::transform_error): Fix exception
5508         specifications as per LWG 3877.
5509         (expected<void, E>::and_then, expected<void, E>::transform):
5510         Likewise.
5511         * testsuite/20_util/expected/lwg3877.cc: New test.
5512
5513 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
5514
5515         * include/std/type_traits: Use __bool_constant instead of
5516         integral_constant.
5517
5518 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
5519
5520         * configure: Regenerate.
5521
5522 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5523
5524         PR libstdc++/109741
5525         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
5526         * config.h.in: Regenerate.
5527         * configure: Regenerate.
5528         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
5529         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
5530         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
5531         instead of hardcoded 64.
5532
5533 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5534
5535         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
5536         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
5537         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
5538         * config.h.in: Regenerate.
5539         * configure: Regenerate.
5540         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
5541         instead of _GLIBCXX_USE_C99_FENV_TR1.
5542         * include/c_global/cfenv: Likewise.
5543         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
5544         of _GLIBCXX_USE_C99_CTYPE_TR1.
5545
5546 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5547
5548         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
5549         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
5550         <inttypes.h> features in C++11 mode and define
5551         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
5552         * config.h.in: Regenerate.
5553         * configure: Regenerate.
5554         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
5555         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
5556         of _GLIBCXX_USE_C99_STDINT_TR1.
5557         * include/c_compatibility/inttypes.h: Check
5558         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
5559         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
5560         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
5561         * include/c_compatibility/stdatomic.h: Check
5562         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
5563         * include/c_compatibility/stdint.h: Likewise.
5564         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
5565         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
5566         _GLIBCXX_USE_C99_INTTYPES_TR1 and
5567         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
5568         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
5569         instead of _GLIBCXX_USE_C99_STDINT_TR1.
5570         * include/std/atomic: Likewise.
5571         * src/c++11/cow-stdexcept.cc: Likewise.
5572         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
5573         Likewise.
5574         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
5575         Likewise.
5576
5577 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5578
5579         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
5580         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
5581         * config.h.in: Regenerate.
5582         * configure: Regenerate.
5583         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
5584         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
5585         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
5586
5587 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5588
5589         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
5590         assertion to ensure expected exception is throw.
5591
5592 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5593
5594         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
5595         printer for chrono::zoned_time for cx11 ABI and tzdb effective
5596         target.
5597
5598 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5599
5600         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
5601         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
5602         * configure: Regenerate.
5603
5604 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5605
5606         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
5607         to check for nan, nanf, and nanl.
5608         * configure: Regenerate.
5609
5610 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5611
5612         * include/bits/char_traits.h (char_traits<char16_t>): Do not
5613         depend on _GLIBCXX_USE_C99_STDINT_TR1.
5614         (char_traits<char32_t>): Likewise.
5615         * include/experimental/source_location: Likewise.
5616
5617 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5618
5619         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
5620         (atomic_int_least16_t, atomic_uint_least16_t)
5621         (atomic_int_least32_t, atomic_uint_least32_t)
5622         (atomic_int_least64_t, atomic_uint_least64_t)
5623         (atomic_int_fast16_t, atomic_uint_fast16_t)
5624         (atomic_int_fast32_t, atomic_uint_fast32_t)
5625         (atomic_int_fast64_t, atomic_uint_fast64_t)
5626         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
5627         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
5628
5629 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5630
5631         * include/bits/algorithmfwd.h (shuffle): Do not depend on
5632         _GLIBCXX_USE_C99_STDINT_TR1.
5633         * include/bits/ranges_algo.h (shuffle): Likewise.
5634         * include/bits/stl_algo.h (shuffle): Likewise.
5635         * include/ext/random: Likewise.
5636         * include/ext/throw_allocator.h (random_condition): Likewise.
5637         * include/std/random: Likewise.
5638         * src/c++11/cow-string-inst.cc: Likewise.
5639         * src/c++11/random.cc: Likewise.
5640
5641 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5642
5643         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
5644         _GLIBCXX_USE_C99_STDINT_TR1.
5645
5646 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5647
5648         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
5649         on _GLIBCXX_USE_C99_STDINT_TR1.
5650
5651 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5652
5653         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
5654         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
5655         * testsuite/experimental/string_view/typedefs.cc: Likewise.
5656
5657 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5658
5659         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
5660         (auto_locale, auto_ferounding): New class types.
5661         (from_chars_impl): Use auto_locale and auto_ferounding.
5662
5663 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5664
5665         PR libstdc++/109772
5666         * include/std/chrono (hh_mm_ss::__fits): Remove variable
5667         template.
5668         (hh_mm_ss::__subseconds): Remove __fits from constraints.
5669         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
5670         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
5671         hh_mm_ss<duration<int, std::pico>>.
5672
5673 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5674
5675         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
5676         * include/bits/basic_ios.h: Add static assertion checking
5677         traits_type::value_type.
5678         * include/bits/basic_string.h: Likewise. Do not rebind
5679         allocator, and add static assertion checking its value_type.
5680         (basic_string::_Alloc_traits_impl): Remove class template.
5681         (basic_string::_S_allocate): New static member function.
5682         (basic_string::assign): Use _S_allocate.
5683         * include/bits/basic_string.tcc (basic_string::_M_create)
5684         (basic_string::reserve, basic_string::_M_replace): Likewise.
5685         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
5686         Disable for C++20 and later.
5687         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
5688         Likweise.
5689
5690 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5691
5692         PR libstdc++/109758
5693         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
5694         and negative zero correctly.
5695         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
5696
5697 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
5698
5699         * include/bits/hashtable_policy.h
5700         (_NodeBuilder<>::_S_build): Use __node_ptr.
5701         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
5702         (_AllocNode<>): Likewise.
5703         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
5704         to call std::is_permutation in the non-unique key implementation.
5705         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
5706         _M_begin() once.
5707         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
5708         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
5709         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
5710         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
5711         const_iterator.
5712         (_Hashtable<>::find): Likewise.
5713         (_Hashtable<>::_M_emplace): Likewise.
5714         (_Hashtable<>::_M_insert_unique): Likewise.
5715
5716 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
5717
5718         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
5719         Print floating-point durations correctly.
5720         (StdChronoTimePointPrinter): Support printing only the value,
5721         not the type name. Uncomment handling for known clocks.
5722         (StdChronoZonedTimePrinter): Remove type names from output.
5723         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
5724         (StdChronoTimeZonePrinter): Add equals sign to output.
5725         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
5726
5727 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
5728
5729         * testsuite/20_util/from_chars/4.cc: Skip long double test06
5730         on aarch64-vxworks.
5731         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
5732         aarch64-vxworks.
5733
5734 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
5735
5736         * doc/xml/manual/abi.xml (abi.versioning.history): Document
5737         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
5738         * doc/html/manual/abi.html: Regenerate.
5739
5740 2023-05-04  Florian Weimer  <fweimer@redhat.com>
5741
5742         * doc/xml/manual/abi.xml (abi.versioning.history): Add
5743         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
5744         libgcc_s.
5745
5746 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
5747
5748         * src/c++17/floating_from_chars.cc
5749         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
5750         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
5751         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
5752         _ZSt8to_charsPcS_u9__ieee128.
5753         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
5754         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
5755         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
5756         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
5757         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
5758
5759 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
5760
5761         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
5762         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
5763         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
5764         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
5765         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
5766         versions.
5767         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
5768         file.
5769
5770 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
5771             Jonathan Wakely  <jwakely@redhat.com>
5772
5773         PR libstdc++/109703
5774         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
5775         Initialize _M_string_length.
5776
5777 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
5778
5779         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
5780         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
5781         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
5782         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
5783         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
5784         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
5785         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
5786         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
5787
5788 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
5789
5790         PR libstdc++/109694
5791         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
5792         -Wattribute-alias.
5793
5794 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5795
5796         * include/bits/random.h (gamma_distribution): Add to the right
5797         doxygen group.
5798         (discrete_distribution, piecewise_constant_distribution)
5799         (piecewise_linear_distribution): Create a new doxygen group and
5800         fix the incomplete doxygen comments.
5801         * include/bits/uniform_int_dist.h (uniform_int_distribution):
5802         Add to doxygen group.
5803
5804 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5805
5806         * include/bits/uses_allocator.h: Add missing @file comment.
5807         * include/bits/regex.tcc: Remove stray doxygen comments.
5808         * include/experimental/memory_resource: Likewise.
5809         * include/std/bit: Tweak doxygen @cond comments.
5810         * include/std/expected: Likewise.
5811         * include/std/numbers: Likewise.
5812
5813 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5814
5815         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
5816         from header paths.
5817
5818 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5819
5820         * include/bits/move.h: Simplify opening/closing namespace std.
5821
5822 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
5823
5824         PR libstdc++/108969
5825         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
5826         _ZSt21ios_base_library_initv.
5827         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
5828         symver and make it the latestp.
5829         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
5830         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
5831         * include/std/iostream: If init_priority attribute is supported
5832         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
5833         symbol into the object.
5834         * configure: Regenerated.
5835
5836 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5837
5838         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
5839         * include/std/format: Likewise.
5840
5841 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5842
5843         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
5844         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
5845
5846 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5847
5848         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
5849         HTML docs.
5850         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
5851         from doxygen docs.
5852         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
5853         Likewise.
5854         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
5855         Likewise.
5856         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
5857         Likewise.
5858         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
5859         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
5860         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
5861         (_DEFINE_BINARY_OPERATOR): Likewise.
5862
5863 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5864
5865         * include/bits/memory_resource.h: Improve doxygen comments.
5866         * include/std/memory_resource: Likewise.
5867
5868 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5869
5870         PR libstdc++/40380
5871         * include/bits/basic_string.h: Improve doxygen comments.
5872         * include/bits/cow_string.h: Likewise.
5873         * include/bits/forward_list.h: Likewise.
5874         * include/bits/fs_dir.h: Likewise.
5875         * include/bits/fs_path.h: Likewise.
5876         * include/bits/quoted_string.h: Likewise.
5877         * include/bits/stl_bvector.h: Likewise.
5878         * include/bits/stl_map.h: Likewise.
5879         * include/bits/stl_multimap.h: Likewise.
5880         * include/bits/stl_multiset.h: Likewise.
5881         * include/bits/stl_set.h: Likewise.
5882         * include/bits/stl_vector.h: Likewise.
5883         * include/bits/unordered_map.h: Likewise.
5884         * include/bits/unordered_set.h: Likewise.
5885         * include/std/filesystem: Likewise.
5886         * include/std/iomanip: Likewise.
5887
5888 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5889
5890         PR libstdc++/105081
5891         * src/c++11/random.cc (__throw_syserr): New function.
5892         (random_device::_M_init, random_device::_M_init_pretr1): Use new
5893         function for bad tokens.
5894         (random_device::_M_getval): Use new function for read errors.
5895         * testsuite/util/testsuite_random.h (random_device_available):
5896         Change catch handler to use std::system_error.
5897
5898 2023-04-24  Patrick Palka  <ppalka@redhat.com>
5899
5900         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
5901         Fix propagation of sign bit.
5902         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
5903         non-standard 'signed typedef-name'.  Add some compile-time tests
5904         for right-shifting a negative __max_diff_type value by more than
5905         one.
5906
5907 2023-04-19  Patrick Palka  <ppalka@redhat.com>
5908             Jonathan Wakely  <jwakely@redhat.com>
5909
5910         PR c++/100157
5911         * include/bits/utility.h (_Nth_type): Conditionally define in
5912         terms of __type_pack_element if available.
5913         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
5914         additional errors from the new built-in.
5915
5916 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
5917
5918         Revert:
5919         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5920
5921         PR libstdc++/108969
5922         * src/Makefile.am: Move globals_io.cc to here.
5923         * src/Makefile.in: Regenerate.
5924         * src/c++98/Makefile.am: Remove globals_io.cc from here.
5925         * src/c++98/Makefile.in: Regenerate.
5926         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
5927         symbol name and then export with GLIBCXX_3.4.31 symver.
5928         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
5929         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
5930         Regenerate.
5931         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
5932         Regenerate.
5933         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
5934         Regenerate.
5935         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
5936         Regenerate.
5937         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
5938         Regenerate.
5939         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
5940         Regenerate.
5941         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
5942         Regenerate.
5943         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
5944         Regenerate.
5945         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
5946
5947 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
5948
5949         Revert:
5950         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5951
5952         PR libstdc++/108969
5953         * config/abi/pre/gnu.ver: Fix preprocessor condition.
5954
5955 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5956
5957         * doc/xml/manual/extensions.xml: Fix example to declare and
5958         qualify std::free, and use NULL instead of 0.
5959         * doc/html/manual/ext_demangling.html: Regenerate.
5960         * libsupc++/cxxabi.h: Adjust doxygen comments.
5961
5962 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5963
5964         PR libstdc++/108969
5965         * config/abi/pre/gnu.ver: Fix preprocessor condition.
5966
5967 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5968
5969         PR libstdc++/108969
5970         * src/Makefile.am: Move globals_io.cc to here.
5971         * src/Makefile.in: Regenerate.
5972         * src/c++98/Makefile.am: Remove globals_io.cc from here.
5973         * src/c++98/Makefile.in: Regenerate.
5974         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
5975         symbol name and then export with GLIBCXX_3.4.31 symver.
5976         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
5977         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
5978         Regenerate.
5979         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
5980         Regenerate.
5981         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
5982         Regenerate.
5983         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
5984         Regenerate.
5985         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
5986         Regenerate.
5987         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
5988         Regenerate.
5989         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
5990         Regenerate.
5991         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
5992         Regenerate.
5993         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
5994
5995 2023-04-18  Patrick Palka  <ppalka@redhat.com>
5996
5997         PR libstdc++/108827
5998         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
5999         for C++23.
6000         * include/std/ranges (range_adaptor_closure): Define for C++23.
6001         * include/std/version (__cpp_lib_ranges): Bump value for
6002         C++23.
6003         * testsuite/std/ranges/version_c++23.cc: Bump expected value
6004         of __cpp_lib_ranges.
6005         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
6006
6007 2023-04-18  Patrick Palka  <ppalka@redhat.com>
6008
6009         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
6010         Define for C++23.
6011         (__cpp_lib_ranges_iota): Likewise.
6012         (__cpp_lib_ranges_find_last): Likewise.
6013         (__cpp_lib_fold): Rename to ...
6014         (__cpp_lib_ranges_fold): ... this.
6015         * include/std/version: As above.
6016         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
6017         renaming __cpp_lib_fold.
6018         * testsuite/std/ranges/version_c++23.cc: Verify values
6019         of the above feature-test macros.
6020
6021 2023-04-18  Patrick Palka  <ppalka@redhat.com>
6022
6023         PR libstdc++/109525
6024         * include/std/ranges (views::_AsConst::operator()): Add
6025         missing const to constant_range test.
6026         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
6027         Improve formatting.  Adjust expected type of v2.
6028         (test03): New test.
6029
6030 2023-04-14  Patrick Palka  <ppalka@redhat.com>
6031
6032         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
6033         (const_sentinel_t): Likewise.
6034         (range_const_reference_t): Likewise.
6035         (constant_range): Likewise.
6036         (__cust_access::__possibly_const_range): Likewise, replacing ...
6037         (__cust_access::__as_const): ... this.
6038         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
6039         (__cust_access::_CEnd::operator()): Likewise.
6040         (__cust_access::_CRBegin::operator()): Likewise.
6041         (__cust_access::_CREnd::operator()): Likewise.
6042         (__cust_access::_CData::operator()): Likewise.
6043         * include/bits/ranges_util.h (ranges::__detail::__different_from):
6044         Make it an alias of std::__detail::__different_from.
6045         (view_interface::cbegin): Define for C++23.
6046         (view_interface::cend): Likewise.
6047         * include/bits/stl_iterator.h (__detail::__different_from): Define.
6048         (iter_const_reference_t): Define for C++23.
6049         (__detail::__constant_iterator): Likewise.
6050         (__detail::__is_const_iterator): Likewise.
6051         (__detail::__not_a_const_iterator): Likewise.
6052         (__detail::__iter_const_rvalue_reference_t): Likewise.
6053         (__detail::__basic_const_iter_cat):: Likewise.
6054         (const_iterator): Likewise.
6055         (__detail::__const_sentinel): Likewise.
6056         (const_sentinel): Likewise.
6057         (basic_const_iterator): Likewise.
6058         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
6059         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
6060         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
6061         Likewise.
6062         (make_const_iterator): Define for C++23.
6063         (make_const_sentinel): Likewise.
6064         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
6065         (as_const_view): Likewise.
6066         (enable_borrowed_range<as_const_view>): Likewise.
6067         (views::__detail::__is_ref_view): Likewise.
6068         (views::__detail::__can_is_const_view): Likewise.
6069         (views::_AsConst, views::as_const): Likewise.
6070         * include/std/span (span::const_iterator): Likewise.
6071         (span::const_reverse_iterator): Likewise.
6072         (span::cbegin): Likewise.
6073         (span::cend): Likewise.
6074         (span::crbegin): Likewise.
6075         (span::crend): Likewise.
6076         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
6077         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
6078         behave independently of C++20 vs C++23.
6079         * testsuite/std/ranges/version_c++23.cc: Verify value of
6080         __cpp_lib_ranges_as_const macro.
6081         * testsuite/24_iterators/const_iterator/1.cc: New test.
6082         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
6083
6084 2023-04-14  Patrick Palka  <ppalka@redhat.com>
6085
6086         * include/bits/ranges_base.h (__cust_access::__as_const)
6087         (__cust_access::_CBegin, __cust::cbegin)
6088         (__cust_access::_CEnd, __cust::cend)
6089         (__cust_access::_CRBegin, __cust::crbegin)
6090         (__cust_access::_CREnd, __cust::crend)
6091         (__cust_access::_CData, __cust::cdata): Move down definitions to
6092         shortly after the definition of input_range.
6093
6094 2023-04-14  Patrick Palka  <ppalka@redhat.com>
6095
6096         * include/bits/ranges_algo.h: Include <optional> for C++23.
6097         (__cpp_lib_fold): Define for C++23.
6098         (in_value_result): Likewise.
6099         (__detail::__flipped): Likewise.
6100         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
6101         (__detail::__indirectly_binary_left_foldable): Likewise.
6102         (___detail:__indirectly_binary_right_foldable): Likewise.
6103         (fold_left_with_iter_result): Likewise.
6104         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
6105         (__fold_left_fn, fold_left): Likewise.
6106         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
6107         Likewise.
6108         (__fold_left_first_fn, fold_left_first): Likewise.
6109         (__fold_right_fn, fold_right): Likewise.
6110         (__fold_right_last_fn, fold_right_last): Likewise.
6111         * include/std/version (__cpp_lib_fold): Likewise.
6112         * testsuite/25_algorithms/fold_left/1.cc: New test.
6113         * testsuite/25_algorithms/fold_right/1.cc: New test.
6114
6115 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
6116
6117         * include/std/format (formatter): Add comment to deleted default
6118         constructor of primary template.
6119         (_Checking_scanner): Add static_assert.
6120
6121 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
6122
6123         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
6124         * doc/html/*: Regenerate.
6125
6126 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
6127
6128         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
6129         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
6130         namespace to avoid clashing with libc struct.
6131         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
6132         Likewise.
6133         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
6134         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
6135         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
6136         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
6137         * testsuite/experimental/synchronized_value.cc: Require gthreads
6138         and add missing option for pthreads targets.
6139
6140 2023-04-12  Patrick Palka  <ppalka@redhat.com>
6141
6142         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
6143         for C++23.
6144         (__detail::__range_with_movable_reference): Likewise.
6145         (enumerate_view): Likewise.
6146         (enumerate_view::_Iterator): Likewise.
6147         (enumerate_view::_Sentinel): Likewise.
6148         (views::__detail::__can_enumerate_view): Likewise.
6149         (views::_Enumerate, views::enumerate): Likewise.
6150         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
6151         * testsuite/std/ranges/version_c++23.cc: Verify value of
6152         __cpp_lib_ranges_enumerate.
6153         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
6154
6155 2023-04-12  Patrick Palka  <ppalka@redhat.com>
6156
6157         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
6158         Propagate _M_trailing_empty in the const-converting constructor
6159         as per LWG 3904.
6160         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
6161         assertion.
6162         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
6163
6164 2023-04-12  Patrick Palka  <ppalka@redhat.com>
6165
6166         * src/c++17/floating_from_chars.cc: Include <algorithm>,
6167         <iterator>, <limits> and <cstdint>.
6168
6169 2023-04-12  Patrick Palka  <ppalka@redhat.com>
6170
6171         PR libstdc++/108291
6172         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
6173         parameter types of the lambda wrapper passed to adjacent_find.
6174         (chunk_by_view::_M_find_prev): Likewise.
6175         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
6176         New tests.
6177
6178 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
6179
6180         PR libstdc++/109482
6181         * include/experimental/internet (basic_endpoint::basic_endpoint()):
6182         Ensure that the required union members are active. Only define
6183         as constexpr for C++20 and later.
6184         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
6185         Likewise.
6186         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
6187         check constexpr default constructor for C++20 and later.
6188         * testsuite/experimental/net/internet/endpoint/extensible.cc:
6189         Likewise.
6190
6191 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
6192
6193         * src/c++20/tzdata.zi: Import new file from 2023c release.
6194
6195 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
6196
6197         * include/precompiled/stdc++.h (C++17): Don't double-include
6198         <charconv>, once with wrong conditions.
6199         * testsuite/18_support/96817.cc: Require hosted.
6200         * testsuite/18_support/bad_exception/59392.cc: Ditto.
6201         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
6202         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
6203         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
6204         Ditto.
6205
6206 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
6207
6208         * include/bits/c++config: When __STDC_HOSTED__ is zero,
6209         disable _GLIBCXX_DEBUG and, if it was set, enable
6210         _GLIBCXX_ASSERTIONS.
6211         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
6212         Include <bits/c++config.h> when determining whether debug is
6213         set, in order to inherit the logic from above
6214
6215 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
6216
6217         * testsuite/17_intro/versionconflict.cc: New test.
6218         * include/std/version: Allow disabling the system_header pragma
6219         via _GLIBCXX_TESTING_SYSHDR.
6220
6221 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
6222
6223         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
6224         Synchronize the definition block with...
6225         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
6226         ... this one here.  Also define the 202202L value, rather than
6227         leaving it up to purely unique_ptr.h, so that the value is
6228         synchronized across all headers.
6229         (__gnu_debug::_Safe_iterator_base): Move into new conditional
6230         block.
6231         * include/std/memory (__cpp_lib_atomic_value_initialization):
6232         Define on freestanding under the same conditions as in
6233         atomic_base.h.
6234         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
6235         Also define on freestanding.
6236         (__cpp_lib_to_chars): Ditto.
6237         (__cpp_lib_gcd): Ditto.
6238         (__cpp_lib_gcd_lcm): Ditto.
6239         (__cpp_lib_raw_memory_algorithms): Ditto.
6240         (__cpp_lib_array_constexpr): Ditto.
6241         (__cpp_lib_nonmember_container_access): Ditto.
6242         (__cpp_lib_clamp): Ditto.
6243         (__cpp_lib_constexpr_char_traits): Ditto.
6244         (__cpp_lib_constexpr_string): Ditto.
6245         (__cpp_lib_sample): Ditto.
6246         (__cpp_lib_lcm): Ditto.
6247         (__cpp_lib_constexpr_iterator): Ditto.
6248         (__cpp_lib_constexpr_char_traits): Ditto.
6249         (__cpp_lib_interpolate): Ditto.
6250         (__cpp_lib_constexpr_utility): Ditto.
6251         (__cpp_lib_shift): Ditto.
6252         (__cpp_lib_ranges): Ditto.
6253         (__cpp_lib_move_iterator_concept): Ditto.
6254         (__cpp_lib_constexpr_numeric): Ditto.
6255         (__cpp_lib_constexpr_functional): Ditto.
6256         (__cpp_lib_constexpr_algorithms): Ditto.
6257         (__cpp_lib_constexpr_tuple): Ditto.
6258         (__cpp_lib_constexpr_memory): Ditto.
6259
6260 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
6261
6262         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
6263         timeout factor on hppa*-*-*.
6264
6265 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
6266
6267         * include/bits/regex.h (sub_match::swap): New function.
6268         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
6269
6270 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
6271
6272         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
6273         example program.
6274         * doc/html/manual/ext_demangling.html: Regenerate.
6275
6276 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
6277
6278         PR tree-optimization/107087
6279         * include/bits/cow_string.h (basic_string::size()): Add
6280         optimizer hint that _S_empty_rep()._M_length is always zero.
6281         (basic_string::length()): Call size().
6282
6283 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
6284
6285         PR libstdc++/109339
6286         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
6287         Add attribute access with access-mode 'none'.
6288         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
6289
6290 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
6291
6292         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
6293         Revert change from member function to data member. Fix for
6294         constant evaluation by detecting which union member is active.
6295         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
6296         flag.
6297
6298 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
6299
6300         PR libstdc++/109242
6301         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
6302         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
6303
6304 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
6305
6306         * include/experimental/internet (ip::make_address): Implement
6307         missing overload.
6308         (ip::address_v4::broadcast()): Avoid undefined shift.
6309         (ip::basic_endpoint): Fix member functions for constexpr.
6310         (ip::basic_endpoint::_M_is_v6): Replace member function with
6311         data member, adjust member functions using it.
6312         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
6313         content.
6314         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
6315         constexpr checks to work in C++14.
6316         * testsuite/experimental/net/internet/address/v4/creation.cc:
6317         Likewise.
6318         * testsuite/experimental/net/internet/endpoint/cons.cc:
6319         Likewise.
6320         * testsuite/experimental/net/internet/network/v4/cons.cc:
6321         Likewise.
6322         * testsuite/experimental/net/internet/network/v4/members.cc:
6323         Likewise.
6324         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
6325
6326 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
6327
6328         * include/std/expected (expected::value() &): Use const lvalue
6329         for unex member passed to bad_expected_access constructor, as
6330         per LWG 3843.
6331
6332 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
6333
6334         PR libstdc++/109340
6335         * include/std/expected (expected::transform): Use
6336         std::remove_cv_t instead of std::remove_cvref_t.
6337         (expected::transform_error): Likewise.
6338         (expected<cv void, E>::transform): Likewise.
6339         (expected<cv void, E>::transform_error): Likewise.
6340         * include/std/optional (transform): Use std::remove_cv_t.
6341         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
6342
6343 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
6344
6345         * include/std/optional (optional): Adjust static assertion to
6346         reject arrays and functions as well as references.
6347         * testsuite/20_util/optional/requirements_neg.cc: New test.
6348
6349 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
6350
6351         PR libstdc++/103387
6352         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
6353         std::use_facet instead of cached _M_num_get facet.
6354         (istream::operator>>(short&)): Likewise.
6355         (istream::operator>>(int&)): Likewise.
6356         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
6357         std::use_facet instead of cached _M_num_put facet.
6358
6359 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
6360
6361         * include/bits/char_traits.h (char_traits::copy): Return without
6362         using memcpy if n==0.
6363         (char_traits::assign): Likewise for memset.
6364
6365 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
6366
6367         PR libstdc++/109299
6368         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
6369         hint for compiler that local strings fit in the local buffer.
6370
6371 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
6372
6373         PR libstdc++/109288
6374         * include/std/chrono (__detail::__get_leap_second_info): Update
6375         expiry date of hardcoded leapseconds list.
6376         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
6377         Likewise.
6378         * src/c++20/tzdata.zi: Import new file from 2023a release.
6379         * testsuite/std/time/time_zone/get_info_local.cc: Only check
6380         transitions for Egypt up to 2014.
6381
6382 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
6383
6384         * include/experimental/bits/simd.h (is_simd_flag_type): New.
6385         (_IsSimdFlagType): New.
6386         (copy_from, copy_to, load ctors): Constrain _Flags using
6387         _IsSimdFlagType.
6388
6389 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
6390
6391         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
6392         _Base::_S_divides if the optimized _S_divides function is hidden
6393         via the preprocessor.
6394
6395 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
6396
6397         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
6398         warning if size_t is not unsigned long.
6399
6400 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6401
6402         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
6403         Add overload, as per LWG 3893.
6404         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
6405         Check assignment from nullptr.
6406
6407 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6408
6409         * include/std/format (formatter<const charT[N], charT>): Do not
6410         define partial speclialization, as per LWG 3833.
6411         * testsuite/std/format/formatter/requirements.cc: Check it.
6412
6413 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6414
6415         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
6416         as per LWG 3792.
6417         * testsuite/20_util/exchange/constexpr.cc: Check for it.
6418
6419 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6420
6421         * include/std/version (__cpp_lib_format): Define.
6422         * testsuite/std/format/functions/format.cc: Check it.
6423
6424 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6425
6426         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
6427         Pass rvalues to the callback, as now allowed by LWG 3645.
6428         Enforce preconditions on the return value.
6429         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
6430         Adjust.
6431
6432 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6433
6434         * include/std/format: Add a comment noting that the resolution
6435         of LWG 3720 has been applied..
6436
6437 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6438
6439         * include/bits/regex.h (match_results): Add allocator-extended
6440         copy and move constructors, as per LWG 2195.
6441         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
6442
6443 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
6444
6445         * include/bits/stream_iterator.h (istream_iterator): Add
6446         constexpr to copy constructor, as per LWG 3600.
6447         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
6448         Check copy construction.
6449
6450 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
6451
6452         * include/experimental/bits/simd_x86.h
6453         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
6454         with __RECIPROCAL_MATH__.
6455
6456 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
6457
6458         * include/experimental/bits/simd_detail.h: Don't define
6459         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
6460         * include/experimental/bits/simd_x86.h (_S_divides): Remove
6461         check for __clang__.
6462
6463 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
6464
6465         * include/experimental/bits/simd_detail.h: Don't declare the
6466         simd API as constexpr with Clang.
6467         * include/experimental/bits/simd_x86.h (__movm): New.
6468         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
6469         and ?:.
6470         (_SimdImplX86::_S_masked_unary): Clang does not implement the
6471         same builtins. Implement the function using __movm, ?:, and -
6472         operators on vector_size types instead.
6473
6474 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
6475
6476         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
6477         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
6478
6479 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
6480
6481         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
6482         formatting.
6483
6484 2023-03-20  Marek Polacek  <polacek@redhat.com>
6485
6486         PR c++/109159
6487         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
6488         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
6489         * testsuite/23_containers/span/explicit.cc: Likewise.
6490
6491 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
6492
6493         PR libstdc++/109182
6494         * include/std/expected (expected<void>::expected(in_place_t)):
6495         Remove template-head.
6496
6497 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
6498
6499         PR libstdc++/109165
6500         * testsuite/18_support/coroutines/hash.cc: Use const object
6501         in second call.
6502
6503 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
6504
6505         PR libstdc++/109165
6506         * include/std/coroutine (hash<>::operator()): Add const.
6507         * testsuite/18_support/coroutines/hash.cc: New test.
6508
6509 2023-03-14  Patrick Palka  <ppalka@redhat.com>
6510
6511         PR libstdc++/109111
6512         * include/std/ranges (repeat_view): Remove redundant parentheses
6513         in requires-clause.
6514         (repeat_view::_Iterator): Correct the requires-clause.
6515
6516 2023-03-14  Patrick Palka  <ppalka@redhat.com>
6517
6518         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
6519         Define.
6520         (__cpp_lib_move_iterator_concept): Define for C++20.
6521         (move_iterator::iterator_concept): Strengthen as per P2520R0.
6522         * include/std/version (__cpp_lib_move_iterator_concept): Define
6523         for C++20.
6524         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
6525
6526 2023-03-14  Patrick Palka  <ppalka@redhat.com>
6527
6528         * include/bits/ranges_util.h (view_interface::empty): Add
6529         preferred overloads that use ranges::size when the range is
6530         sized as per LWG 3715.
6531         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
6532
6533 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
6534
6535         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
6536         Only define for C++17 and later.
6537
6538 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
6539
6540         * src/Makefile.am: Add comment about linker script fragments.
6541         * src/Makefile.in: Regenerate.
6542
6543 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
6544
6545         PR libstdc++/62196
6546         * include/bits/mask_array.h (mask_array): Add assertions to
6547         assignment operators.
6548         * include/std/valarray (valarray::operator[](valarray<bool>)):
6549         Add assertions.
6550         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
6551         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
6552         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
6553         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
6554         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
6555         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
6556         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
6557         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
6558         * testsuite/26_numerics/valarray/mask.cc: New test.
6559
6560 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
6561
6562         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
6563         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
6564
6565 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
6566
6567         * doc/Makefile.am: Add comment referring to documentation.
6568         * doc/Makefile.in: Regenerate.
6569
6570 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
6571
6572         * doc/html/*: Regenerate.
6573
6574 2023-03-13  Jonny Grant  <jg@jguk.org>
6575
6576         * doc/xml/faq.xml: Update copyright year.
6577
6578 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
6579
6580         * include/bits/allocator.h: Fix typo in comment.
6581
6582 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
6583
6584         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
6585         if it isn't mangled as DF16b but u6__bf16.
6586
6587 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
6588
6589         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
6590         to https.
6591         * doc/html/manual/documentation_hacking.html: Regenerate.
6592
6593 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
6594
6595         PR libstdc++/109064
6596         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
6597         Remove self-recursion in __init__. Add missing _supports.
6598         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
6599         and unique().
6600
6601 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6602
6603         * include/std/ranges
6604         (cartesian_product_view::_Iterator::_Iterator): Remove
6605         constraint on default constructor as per LWG 3849.
6606         (cartesian_product_view::_Iterator::_M_prev): Adjust position
6607         of _Nm > 0 test as per LWG 3820.
6608         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
6609         checking only on sized cartesian products.
6610         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
6611
6612 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6613
6614         PR libstdc++/109024
6615         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
6616         LWG 3796.
6617         (repeat_view::_M_pred): Likewise.
6618         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
6619         * testsuite/std/ranges/repeat/1.cc (test05): New test.
6620
6621 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6622
6623         PR libstdc++/108362
6624         * include/std/ranges (__detail::__can_single_view): New concept.
6625         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
6626         end of the function declarator.
6627         (__detail::__can_iota_view): New concept.
6628         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
6629         end of the function declarator.
6630         (__detail::__can_istream_view): New concept.
6631         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
6632         end of the function declarator.
6633         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
6634         * testsuite/std/ranges/istream_view.cc (test08): New test.
6635         * testsuite/std/ranges/single_view.cc (test07): New test.
6636
6637 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6638
6639         PR libstdc++/107572
6640         * include/std/ranges (cartesian_product_view::end): When
6641         building the tuple of iterators, avoid calling ranges::begin on
6642         the first range if __empty_tail is false.
6643         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
6644
6645 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
6646
6647         PR libstdc++/108882
6648         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
6649         patterns.
6650
6651 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
6652
6653         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
6654         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
6655         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
6656         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
6657         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
6658
6659 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
6660
6661         PR libstdc++/108882
6662         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
6663         not match symbols in namespace std::__gnu_cxx11_ieee128.
6664         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
6665         std::__gnu_cxx11_ieee128::money_{get,put}.
6666
6667 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
6668
6669         * libsupc++/eh_personality.cc: Fix spelling in comment.
6670
6671 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
6672
6673         * testsuite/30_threads/async/async.cc (test04): Initialize
6674         steady_start, renamed from steady_begin, next to slow_start.
6675         Increase tolerance for final wait.
6676
6677 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
6678
6679         * testsuite/libstdc++-prettyprinters/80276.cc: Add
6680         std::string to debug info.
6681         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
6682
6683 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
6684
6685         PR libstdc++/104852
6686         PR libstdc++/95989
6687         PR libstdc++/52590
6688         * include/bits/std_thread.h (thread::_M_thread_deps): New
6689         static implicitly-inline member function.
6690         (std::thread template ctor): Pass it to _M_start_thread.
6691         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
6692         parameter, force it live on entry.
6693
6694 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6695
6696         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
6697         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
6698         Likewise.
6699         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
6700         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
6701         Likewise.
6702
6703 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
6704
6705         * include/bits/cow_string.h: Fix typo in comment.
6706
6707 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
6708
6709         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
6710         current time zone cannot be determined.
6711         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
6712         HAVE_TZDB macro and test all members unconditionally.
6713
6714 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
6715
6716         PR libstdc++/108952
6717         * include/bits/uses_allocator_args.h
6718         (uses_allocator_construction_args): Implement LWG 3527.
6719         * testsuite/20_util/pair/astuple/get-2.cc: New test.
6720         * testsuite/20_util/scoped_allocator/108952.cc: New test.
6721         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
6722
6723 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
6724
6725         PR libstdc++/108846
6726         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
6727         Add __assign_one static member function.
6728         (__copy_move<true, false, RA>): Likewise.
6729         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
6730         value.
6731         (__copy_move_backward<IsMove, true, RA>): Likewise.
6732         * testsuite/25_algorithms/copy/108846.cc: New test.
6733         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
6734         * testsuite/25_algorithms/copy_n/108846.cc: New test.
6735         * testsuite/25_algorithms/move/108846.cc: New test.
6736         * testsuite/25_algorithms/move_backward/108846.cc: New test.
6737
6738 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
6739
6740         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
6741         attributes.
6742
6743 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
6744
6745         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
6746         caveat to comment.
6747         * include/bits/basic_string.h (resize_and_overwrite): Add
6748         doxygen comment.
6749
6750 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
6751
6752         * include/experimental/bits/simd.h: Line breaks and indenting
6753         fixed to follow the libstdc++ standard.
6754         * include/experimental/bits/simd_builtin.h: Likewise.
6755         * include/experimental/bits/simd_fixed_size.h: Likewise.
6756         * include/experimental/bits/simd_neon.h: Likewise.
6757         * include/experimental/bits/simd_ppc.h: Likewise.
6758         * include/experimental/bits/simd_scalar.h: Likewise.
6759         * include/experimental/bits/simd_x86.h: Likewise.
6760
6761 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
6762
6763         PR libstdc++/108030
6764         * include/experimental/bits/simd_fixed_size.h
6765         (_SimdImplFixedSize::_S_broadcast): Replace inline with
6766         _GLIBCXX_SIMD_INTRINSIC.
6767         (_SimdImplFixedSize::_S_generate): Likewise.
6768         (_SimdImplFixedSize::_S_load): Likewise.
6769         (_SimdImplFixedSize::_S_masked_load): Likewise.
6770         (_SimdImplFixedSize::_S_store): Likewise.
6771         (_SimdImplFixedSize::_S_masked_store): Likewise.
6772         (_SimdImplFixedSize::_S_min): Likewise.
6773         (_SimdImplFixedSize::_S_max): Likewise.
6774         (_SimdImplFixedSize::_S_complement): Likewise.
6775         (_SimdImplFixedSize::_S_unary_minus): Likewise.
6776         (_SimdImplFixedSize::_S_plus): Likewise.
6777         (_SimdImplFixedSize::_S_minus): Likewise.
6778         (_SimdImplFixedSize::_S_multiplies): Likewise.
6779         (_SimdImplFixedSize::_S_divides): Likewise.
6780         (_SimdImplFixedSize::_S_modulus): Likewise.
6781         (_SimdImplFixedSize::_S_bit_and): Likewise.
6782         (_SimdImplFixedSize::_S_bit_or): Likewise.
6783         (_SimdImplFixedSize::_S_bit_xor): Likewise.
6784         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
6785         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
6786         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
6787         explicit about not always-inline, yet).
6788         (_SimdImplFixedSize::_S_isinf): Likewise.
6789         (_SimdImplFixedSize::_S_isfinite): Likewise.
6790         (_SimdImplFixedSize::_S_isnan): Likewise.
6791         (_SimdImplFixedSize::_S_isnormal): Likewise.
6792         (_SimdImplFixedSize::_S_signbit): Likewise.
6793
6794 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
6795
6796         PR libstdc++/108856
6797         * include/experimental/bits/simd_builtin.h
6798         (_SimdImplBuiltin::_S_masked_unary): More efficient
6799         implementation of masked inc-/decrement for integers and floats
6800         without AVX2.
6801         * include/experimental/bits/simd_x86.h
6802         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
6803         builtins for masked inc-/decrement.
6804
6805 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6806
6807         * include/experimental/executor (executor): Constrain template
6808         constructors.
6809
6810 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6811
6812         * include/experimental/internet (basic_endpoint): Add missing
6813         constexpr to comparison operators.
6814         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
6815
6816 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6817
6818         * include/experimental/internet (network_v4::netmask()): Avoid
6819         undefined shift.
6820         (network_v4::broadcast()): Optimize and fix for targets with
6821         uint_least32_t wider than 32 bits.
6822         (network_v4::to_string(const Allocator&)): Fix for custom
6823         allocators and optimize using to_chars.
6824         (operator==(const network_v4&, const network_v4&)): Add missing
6825         constexpr.
6826         (operator==(const network_v6&, const network_v6&)): Likewise.
6827         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
6828         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
6829
6830 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6831
6832         * include/experimental/internet (address_4(const bytes_type&)):
6833         Use __builtin_bit_cast if available, otherwise convert to
6834         network byte order.
6835         (address_v4::to_bytes()): Likewise, but convert from network
6836         byte order.
6837         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
6838         incorrect tests. Check for constexpr too.
6839         * testsuite/experimental/net/internet/address/v4/creation.cc:
6840         Likewise.
6841         * testsuite/experimental/net/internet/address/v4/members.cc:
6842         Check that bytes_type is a standard-layout type.
6843
6844 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6845
6846         * include/experimental/internet (address_v4::to_string):
6847         Optimize.
6848         * testsuite/experimental/net/internet/address/v4/members.cc:
6849         Check more addresses.
6850
6851 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6852
6853         * include/ext/aligned_buffer.h (__aligned_buffer): Add
6854         diagnostic pragmas.
6855
6856 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6857
6858         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
6859         before dg-do.
6860
6861 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6862
6863         * testsuite/experimental/simd/tests/reductions.cc: Introduce
6864         max_distance as the type-dependent max error.
6865
6866 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6867
6868         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
6869         int. The actual range of these indexes is very small.
6870
6871 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6872
6873         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
6874         (_S_bit_shift_right): Declare constexpr. The implementation was
6875         already expecting constexpr evaluation.
6876
6877 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6878
6879         PR libstdc++/108030
6880         * include/experimental/bits/simd_detail.h
6881         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
6882         __clang__.
6883
6884 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6885
6886         PR libstdc++/108030
6887         * include/experimental/bits/simd.h (__vector_broadcast):
6888         Implement via __vector_broadcast_impl instead of
6889         __call_with_n_evaluations + 2 lambdas.
6890         (__vector_broadcast_impl): New.
6891
6892 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6893
6894         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
6895         Avoid destruction of the mutex pool.
6896
6897 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6898
6899         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
6900         on vxworks.
6901         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
6902         Likewise.
6903
6904 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6905
6906         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
6907         kernel mode.
6908
6909 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
6910
6911         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
6912
6913 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
6914
6915         * include/experimental/bits/simd.h (__extract_part, split):
6916         Use reserved name for template parameter.
6917
6918 2023-02-20  Andreas Schwab  <schwab@suse.de>
6919
6920         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
6921
6922 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
6923
6924         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
6925         * doc/html/faq.html: Regenerate.
6926
6927 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6928
6929         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
6930         between scalars requires the __bit_cast helper function instead
6931         of simd_bit_cast.
6932
6933 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6934
6935         * include/experimental/bits/simd_x86.h
6936         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
6937         (_SimdImplX86::_S_less_equal): Do not call
6938         __builtin_is_constant_evaluated in constexpr-if.
6939
6940 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6941
6942         * testsuite/experimental/simd/tests/bits/verify.h
6943         (verify::verify): Use %zx for size_t in format string.
6944
6945 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6946
6947         * testsuite/experimental/simd/generate_makefile.sh: Generate and
6948         pre-compile pch.h, which includes all headers that do not depend
6949         on command-line macros.
6950         * testsuite/experimental/simd/tests/bits/main.h: New file.
6951         (iterate_abis, main): Moved from verify.h.
6952         * testsuite/experimental/simd/tests/bits/verify.h
6953         (iterate_abis, main): Moved to main.h.
6954         * testsuite/experimental/simd/tests/bits/conversions.h: Add
6955         include guard.
6956         (genHalfBits): Simplify.
6957         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
6958         guard.
6959         (make_alternating_mask): Moved from mask_loadstore.
6960         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
6961         include guard.
6962         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
6963         * testsuite/experimental/simd/tests/mask_loadstore.cc
6964         (make_mask, make_alternating_mask): Removed.
6965         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
6966         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
6967         Removed.
6968         * testsuite/experimental/simd/tests/abs.cc: Only include
6969         bits/main.h.
6970         Ditto.
6971         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
6972         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
6973         * testsuite/experimental/simd/tests/casts.cc: Ditto.
6974         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
6975         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
6976         * testsuite/experimental/simd/tests/generator.cc: Ditto.
6977         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
6978         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
6979         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
6980         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
6981         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
6982         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
6983         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
6984         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
6985         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
6986         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
6987         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
6988         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
6989         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
6990         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
6991         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
6992         * testsuite/experimental/simd/tests/simd.cc: Ditto.
6993         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
6994         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
6995         * testsuite/experimental/simd/tests/splits.cc: Ditto.
6996         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
6997         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
6998         * testsuite/experimental/simd/tests/where.cc: Ditto.
6999
7000 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
7001
7002         * testsuite/experimental/simd/README.md: Document the timeout
7003         and timeout-factor directives. Minor typo fixed.
7004
7005 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
7006
7007         PR libstdc++/108030
7008         * include/experimental/bits/simd_detail.h: Define
7009         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
7010         * include/experimental/bits/simd.h: Annotate lambdas with
7011         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
7012         * include/experimental/bits/simd_builtin.h: Ditto.
7013         * include/experimental/bits/simd_converter.h: Ditto.
7014         * include/experimental/bits/simd_fixed_size.h: Ditto.
7015         * include/experimental/bits/simd_math.h: Ditto.
7016         * include/experimental/bits/simd_neon.h: Ditto.
7017         * include/experimental/bits/simd_x86.h: Ditto.
7018
7019 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
7020
7021         * include/experimental/bits/simd.h
7022         (_SimdWrapper::_M_is_constprop_none_of)
7023         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
7024         computed result still satisfies __builtin_constant_p.
7025
7026 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7027
7028         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
7029         ellipsis character.
7030
7031 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7032
7033         * include/Makefile.am: Add new header.
7034         * include/Makefile.in: Regenerate.
7035         * include/experimental/synchronized_value: New file.
7036         * testsuite/experimental/synchronized_value.cc: New test.
7037
7038 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7039
7040         * include/experimental/optional: Fix header name in comment.
7041
7042 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7043
7044         * include/std/format (__format::_Arg_store): New class template.
7045         (basic_format_args): Remove nested type _Store and add deduction
7046         guide from _Arg_store.
7047         (basic_format_arg, make_format_args): Adjust.
7048         * testsuite/std/format/arguments/lwg3810.cc: New test.
7049
7050 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7051
7052         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
7053         constraints to constructors and add deleted overloads for the
7054         dangling cases, as per P2255R2.
7055         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
7056         make dangling cases ill-formed.
7057         * testsuite/20_util/pair/dangling_ref.cc: New test.
7058
7059 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7060
7061         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
7062
7063 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7064
7065         * include/ext/throw_allocator.h: Use reserved names for
7066         parameters.
7067
7068 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7069
7070         * testsuite/17_intro/names_pstl.cc: Add space after effective
7071         target name.
7072
7073 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7074
7075         * include/pstl/algorithm_fwd.h (__pattern_search_n)
7076         (__brick_unique_copy, __brick_adjacent_find)
7077         (__brick_generate_n, __pattern_generate_n): Use reserved names
7078         for parameters.
7079         * include/pstl/algorithm_impl.h (__brick_unique_copy)
7080         (__pattern_reverse, __brick_generate_n): Likewise.
7081         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
7082         (__prefer_parallel_tag): Likewise.
7083         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
7084         * include/pstl/glue_numeric_defs.h (adjacent_difference):
7085         Likewise.
7086         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
7087         Likewise.
7088         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
7089         * include/pstl/unseq_backend_simd.h (_Combiner)
7090         (__simd_min_element, __simd_minmax_element): Likewise.
7091         * testsuite/17_intro/names_pstl.cc: New test.
7092
7093 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
7094
7095         * include/bits/fs_ops.h (create_directory): Use reserved name
7096         for parameter.
7097         * include/bits/ranges_algo.h (__contains_subrange_fn):
7098         Likewise.
7099         * include/bits/regex_automaton.h (_State_base::_M_print):
7100         Likewise.
7101         * include/bits/regex_automaton.tcc(_State_base::_M_print):
7102         Likewise.
7103         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
7104         * include/experimental/bits/fs_ops.h (create_directory):
7105         Likewise.
7106         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
7107         (recursive_timed_mutex:_M_clocklock): Likewise.
7108         * include/std/tuple (basic_common_reference): Likewise.
7109         * libsupc++/cxxabi_init_exception.h
7110         (__cxa_init_primary_exception): Likewise.
7111         * testsuite/17_intro/names.cc: Add checks.
7112
7113 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
7114
7115         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
7116         to www.open-std.org and https.
7117         * doc/html/manual/status.html: Regenerate.
7118
7119 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
7120
7121         PR libstdc++/103934
7122         * include/std/atomic (atomic_flag_wait): Add.
7123         (atomic_flag_wait_explicit): Add.
7124         (atomic_flag_notify): Add.
7125         (atomic_flag_notify_explicit): Add.
7126         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
7127         Add test case to cover missing atomic_flag free functions.
7128
7129 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
7130
7131         PR libstdc++/103934
7132         * include/std/atomic (atomic_flag_test): Add.
7133         (atomic_flag_test_explicit): Add.
7134         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
7135         test case to cover missing atomic_flag free functions.
7136         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
7137         Likewise.
7138
7139 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
7140
7141         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
7142         "The Component Object Model" reference.
7143         * doc/html/manual/policy_data_structures.html: Regenerate.
7144
7145 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
7146
7147         * doc/xml/manual/containers.xml: Tweak a link to N1780
7148         (C++ standard).
7149         * doc/html/manual/associative.html: Regenerate.
7150
7151 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
7152
7153         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
7154         * doc/html/manual/facets.html: Regenerate.
7155
7156 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
7157
7158         * doc/xml/manual/policy_data_structures_biblio.xml: Update
7159         link to "Worst-case efficient priority queues".
7160         * doc/html/manual/policy_data_structures.html: Regenerate.
7161
7162 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
7163
7164         * doc/xml/manual/using.xml: Document newly-freestanding
7165         headers and the effect of the -ffreestanding flag.
7166         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
7167         completed.
7168         * doc/xml/manual/configure.xml: Document that hosted installs
7169         respect __STDC_HOSTED__.
7170         * doc/xml/manual/test.xml: Document how to run tests in
7171         freestanding mode.
7172         * doc/html/*: Regenerate.
7173
7174 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
7175
7176         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
7177         (__find_last_if_fn): Likewise.
7178
7179 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
7180
7181         * include/std/type_traits: Add diagnostic pragmas around
7182         references to deprecated std::aligned_storage and
7183         std::aligned_union traits.
7184         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
7185         Add dg-warning for et c++23.
7186         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
7187         Likewise.
7188         * testsuite/20_util/aligned_storage/value.cc: Likewise.
7189         * testsuite/20_util/aligned_union/1.cc: Likewise.
7190         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
7191         Likewise.
7192
7193 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
7194
7195         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
7196         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
7197         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
7198         * include/std/type_traits (aligned_storage, aligned_union)
7199         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
7200         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
7201         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
7202
7203 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
7204
7205         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
7206         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
7207         consistent with other 'deprecated' macros.
7208         * include/std/type_traits (is_pod, is_pod_v): Use
7209         _GLIBCXX20_DEPRECATED_SUGGEST instead.
7210
7211 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
7212
7213         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
7214         * Makefile.in: Regenerate.
7215         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
7216         There's no history to be compatible with.
7217         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
7218         source files from the build.
7219         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
7220         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
7221         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
7222         * src/Makefile.in: Regenerate.
7223         * src/c++11/Makefile.in: Regenerate.
7224         * src/c++17/Makefile.in: Regenerate.
7225         * src/c++20/Makefile.in: Regenerate.
7226         * src/c++98/Makefile.in: Regenerate.
7227
7228 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
7229
7230         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
7231         filesystem, libbacktrace and experimental.
7232         * src/Makefile.in: Regenerate.
7233
7234 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
7235
7236         PR libstdc++/108672
7237         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
7238         instead of int32_t.
7239
7240 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
7241
7242         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
7243         * doc/html/manual/documentation_hacking.html: Regenerate.
7244
7245 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
7246
7247         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
7248         storage to the move-from instance when allocators are equal.
7249         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
7250         New test case.
7251
7252 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
7253
7254         * config/os/gnu-linux/os_defines.h [!__linux__]
7255         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
7256
7257 2023-02-03  Patrick Palka  <ppalka@redhat.com>
7258
7259         * include/bits/ranges_algo.h (__find_last_fn, find_last):
7260         Define.
7261         (__find_last_if_fn, find_last_if): Define.
7262         (__find_last_if_not_fn, find_last_if_not): Define.
7263         * testsuite/25_algorithms/find_last/1.cc: New test.
7264         * testsuite/25_algorithms/find_last_if/1.cc: New test.
7265         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
7266
7267 2023-02-03  Patrick Palka  <ppalka@redhat.com>
7268
7269         * include/bits/ranges_algo.h (out_value_result): Define.
7270         (iota_result): Define.
7271         (__iota_fn, iota): Define.
7272         * testsuite/25_algorithms/iota/1.cc: New test.
7273
7274 2023-02-03  Patrick Palka  <ppalka@redhat.com>
7275
7276         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
7277         (__contains_subrange_fn, contains_subrange): Define.
7278         * testsuite/25_algorithms/contains/1.cc: New test.
7279         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
7280
7281 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
7282
7283         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
7284         * doc/html/manual/abi.html: Regenerate.
7285
7286 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
7287
7288         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
7289         errc::function_not_supported instead of errc::not_supported.
7290
7291 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
7292
7293         * include/std/sstream  (basic_stringbuf::view): Define for old
7294         std::string ABI.
7295         (basic_istringstream::view, basic_0stringstream::view)
7296         (basic_stringstream::view): Likewise.
7297         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
7298         { dg-require-effective-target cxx11_abi }.
7299         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
7300         Likewise.
7301         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
7302         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
7303         Likewise.
7304         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
7305         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
7306         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
7307         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
7308         Likewise.
7309
7310 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
7311
7312         PR libstdc++/108636
7313         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
7314         conversion operators for directory iterator comparisons with
7315         std::default_sentinel_t.
7316         * include/bits/fs_path.h (path::path(string_view, _Type))
7317         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
7318         definitions to ...
7319         * src/c++17/fs_path.cc: ... here.
7320         * testsuite/27_io/filesystem/path/108636.cc: New test.
7321
7322 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
7323
7324         * include/std/variant (variant::operator=): Implement resolution
7325         of LWG 3585.
7326         * testsuite/20_util/variant/lwg3585.cc: New test.
7327
7328 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
7329
7330         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
7331         link to https.
7332         * doc/html/manual/using_exceptions.html: Regenerate.
7333
7334 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
7335
7336         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
7337         * doc/html/manual/debug.html: Regenerate.
7338
7339 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
7340
7341         * src/c++11/random.cc (random_device::_M_fini): Do not try to
7342         close the file handle if the target doesn't support the
7343         /dev/random and /dev/urandom files.
7344
7345 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
7346
7347         * config/os/generic/error_constants.h (errc::value_too_large)
7348         [__AVR__]: Define.
7349         * src/c++11/system_error.cc
7350         (system_category::default_error_condition) [__AVR__]: Only match
7351         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
7352         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
7353         for ENOENT etc. in switch.
7354         (fs::remove_all) [__AVR__]: Likewise.
7355         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
7356         close etc.
7357
7358 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
7359
7360         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
7361         embed_zoneinfo=no
7362         * configure: Regenerate.
7363
7364 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
7365
7366         PR testsuite/108632
7367         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
7368         struct at end of S0.
7369
7370 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
7371
7372         * doc/xml/manual/shared_ptr.xml: Move links from both
7373         http://open-std.org and http://www.open-std.org to
7374         https://www.open-std.org.
7375         * doc/html/manual/memory.html: Regenerate.
7376
7377 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
7378
7379         * doc/xml/manual/appendix_contributing.xml: Adjust link to
7380         ISO C++ standard at ANSI.
7381         Move link to www.open-std.org to https.
7382         * doc/html/manual/appendix_contributing.html: Regenerate.
7383
7384 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
7385
7386         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
7387         links to https.
7388         * doc/html/manual/documentation_hacking.html: Regenerate.
7389
7390 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
7391
7392         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
7393         * doc/html/manual/abi.html: Regenerate.
7394
7395 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
7396
7397         PR libstdc++/108568
7398         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
7399         include features.h if present and then check __GLIBC__ and
7400         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
7401         __GLIBC_PREREQ which isn't defined yet.
7402
7403 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
7404
7405         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
7406         string literal.
7407
7408 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
7409
7410         PR libstdc++/108554
7411         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
7412
7413 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
7414
7415         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
7416         rules named "+" for compatibility with older tzdata.zi files.
7417
7418 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
7419
7420         PR libstdc++/108554
7421         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
7422         nonnull attribute.
7423         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
7424         attributes.
7425         * testsuite/23_containers/map/modifiers/108554.cc: New test.
7426
7427 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
7428
7429         PR libstdc++/108530
7430         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
7431         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
7432
7433 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
7434
7435         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
7436         use https.
7437         * doc/html/manual/bugs.html: Regenerate.
7438
7439 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
7440
7441         PR libstdc++/108530
7442         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
7443         /etc/sysconfig/clock.
7444
7445 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
7446
7447         PR libstdc++/102301
7448         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
7449         std::make_reverse_iterator.
7450         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
7451         (make_from_tuple): Add static assertion from P2255 to diagnose
7452         dangling references.
7453         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
7454         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
7455
7456 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
7457
7458         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
7459         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
7460         (_Safe_iterator::operator++(int)): Use latter.
7461         (_Safe_iterator::operator--(int)): Likewise.
7462         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
7463         check.
7464         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
7465         New.
7466         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
7467         (_Safe_local_iterator::operator++(int)): Use latter.
7468         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
7469         entry associated to the array entry.
7470
7471 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
7472
7473         * include/bits/fs_path.h (u8path): Add deprecated attribute.
7474         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
7475         -Wno-deprecated-declarations for C++20 and later.
7476         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
7477         Likewise.
7478         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
7479         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
7480         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
7481
7482 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
7483
7484         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
7485         Always call _M_fini and _M_getentropy.
7486
7487 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
7488
7489         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
7490         to www.open-std.org to use https.
7491         (COM: Component Model Object Technologies): Rename from...
7492         (The Component Object Model): ...to.
7493         * doc/html/manual/policy_data_structures.html: Regenerate.
7494
7495 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
7496
7497         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
7498         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
7499         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
7500
7501 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
7502
7503         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
7504         of $host. Fix check for file being present during native build.
7505         * configure: Regenerate.
7506
7507 2023-01-17  Martin Liska  <mliska@suse.cz>
7508
7509         * src/libbacktrace/Makefile.in: Regenerate.
7510
7511 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
7512
7513         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
7514
7515 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
7516
7517         PR libstdc++/108413
7518         * include/c_compatibility/stdatomic.h: Change copyright line to
7519         be consistent with other headers contributed under DCO terms.
7520         * include/std/expected: Add full stop to copyright line.
7521         * src/c++20/tzdb.cc: Likewise.
7522
7523 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
7524
7525         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
7526         https.
7527         * doc/xml/manual/status_cxx2017.xml: Ditto.
7528         * doc/xml/manual/status_cxx2020.xml: Ditto.
7529         * doc/xml/manual/status_cxx2023.xml: Ditto.
7530         * doc/html/manual/status.html: Regenerate.
7531
7532 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
7533
7534         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
7535         and fail gracefully if defining the weak symbol doesn't work.
7536
7537 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
7538
7539         PR libstdc++/108288
7540         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
7541         fix to other iterator category.
7542         (_Safe_iterator<>::operator--(int)): Likewise.
7543         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
7544         Fix deadlock.
7545         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
7546         (invalid_local_iterator_post_increment): New.
7547         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
7548         New test.
7549         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
7550         New test.
7551
7552 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
7553
7554         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
7555         dg-options.
7556
7557 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
7558
7559         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
7560
7561 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
7562
7563         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
7564         windows.h. Add pecoff as FORMAT_FILE.
7565         * config.h.in: Regenerate.
7566         * configure: Regenerate.
7567         * src/libbacktrace/Makefile.am: Regenerate.
7568         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
7569
7570 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
7571
7572         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
7573         raw __name if __cxa_demangle could not demangle it.
7574
7575 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7576
7577         PR libstdc++/108409
7578         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
7579         variable.
7580
7581 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7582
7583         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
7584         loading tzdb.
7585         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
7586         effective target.
7587         * testsuite/std/time/tzdb_list/1.cc: Likewise.
7588
7589 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7590
7591         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
7592         --with-libstdcxx-zoneinfo-dir configure option with
7593         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
7594         a directory.
7595         * config.h.in: Regenerate.
7596         * configure: Regenerate.
7597         * doc/xml/manual/configure.xml: Document configure option.
7598         * doc/html/manual/configure.html: Regenerate.
7599         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
7600         * src/c++20/Makefile.in: Regenerate.
7601         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
7602         null pointer if no directory is configured.
7603         (zoneinfo_dir): Replace with ...
7604         (zoneinfo_file): New function.
7605         (tzdata_stream): New istream class.
7606         (remote_version, reload_tzdb): Use tzdata_stream.
7607         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
7608         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
7609         tzdata.zi file in default location.
7610         * src/c++20/tzdata.zi: New file.
7611
7612 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7613
7614         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
7615         * testsuite/std/time/month_day/io.cc: New test.
7616         * testsuite/std/time/month_day_last/io.cc: New test.
7617         * testsuite/std/time/month_weekday/io.cc: New test.
7618         * testsuite/std/time/month_weekday_last/io.cc: New test.
7619         * testsuite/std/time/weekday_indexed/io.cc: New test.
7620         * testsuite/std/time/weekday_last/io.cc: New test.
7621         * testsuite/std/time/year_month/io.cc: New test.
7622         * testsuite/std/time/year_month_day_last/io.cc: New test.
7623         * testsuite/std/time/year_month_weekday/io.cc: New test.
7624         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
7625
7626 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
7627
7628         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
7629         specifications.
7630         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
7631         export.
7632
7633 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7634
7635         * include/bits/std_mutex.h: Include <errno.h>.
7636
7637 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
7638
7639         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
7640         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
7641         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
7642         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
7643         std::make_unique with a freestanding-compatible wrapper around
7644         unique_ptr.
7645         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
7646         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
7647         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
7648         Ditto.
7649         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
7650         of __cpp_lib_ranges in !HOSTED.
7651
7652 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
7653
7654         * include/Makefile.am: Install bits/char_traits.h,
7655         std/string_view
7656         * include/Makefile.in: Regenerate.
7657         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
7658         mbstate-only bits behind appropriate #ifs.
7659         * include/std/string_view: Gate <iostream> functionality behind
7660         HOSTED.
7661         * include/std/version: Enable __cpp_lib_constexpr_string_view
7662         and __cpp_lib_starts_ends_with in !HOSTED.
7663         * include/std/ranges: Re-enable __is_basic_string_view on
7664         freestanding, include <string_view> directly.
7665         * include/precompiled/stdc++.h: Include <string_view> when
7666         !HOSTED too.
7667         * testsuite/20_util/function_objects/searchers.cc: Skip testing
7668         boyer_moore searchers on freestanding
7669         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
7670         <string>-related tests behind __STDC_HOSTED__.
7671         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
7672         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
7673         unused <stdexcept> include.
7674         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
7675         unused <vector> include.
7676         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
7677         Guard <string> related testing behind __STDC_HOSTED__.
7678         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
7679         Guard <stdexcept> related tests behind __STDC_HOSTED__.
7680         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
7681         Ditto.
7682         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
7683         Guard <stdexcept> tests behind __STDC_HOSTED__.
7684         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
7685         Enable test on freestanding, guard <stdexcept> bits behind
7686         __STDC_HOSTED__.
7687         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
7688         Guard <stdexcept> bits behind __STDC_HOSTED__.
7689         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
7690         Ditto.
7691
7692 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
7693
7694         PR libstdc++/86419
7695         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
7696         errors in incomplete multibyte sequences.
7697         (utf16_in): Remove surrogates parameter. Fix conditions for
7698         returning partial.
7699         (utf16_out): Fix condition for returning partial.
7700         (ucs2_in): Do not pass surrogates argument to utf16_in.
7701         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
7702         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
7703         tests.
7704         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
7705         test.
7706
7707 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7708
7709         PR libstdc++/108331
7710         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
7711         __GTHREAD_LEGACY_MUTEX_T if defined.
7712
7713 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7714
7715         PR libstdc++/108327
7716         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
7717         Export __try_use_facet specializations for facets in namespace
7718         __gnu_cxx_ldbl128.
7719         * config/os/gnu-linux/ldbl-ieee128-extra.ver
7720         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
7721         __gnu_cxx_ieee128.
7722         * testsuite/util/testsuite_abi.cc: Add to lists of known and
7723         latest versions.
7724
7725 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7726
7727         * include/bits/std_mutex.h: Remove <system_error> include.
7728         * include/std/condition_variable: Add <bits/error_constants.h>
7729         include.
7730         * include/std/mutex: Likewise.
7731         * include/std/shared_mutex: Likewise.
7732
7733 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
7734
7735         PR libstdc++/77691
7736         * include/experimental/memory_resource
7737         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
7738         (do_allocate, do_deallocate): Check it.
7739         * testsuite/experimental/memory_resource/new_delete_resource.cc:
7740         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
7741
7742 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
7743
7744         * doc/xml/manual/abi.xml: Add latest library versions.
7745         * doc/html/manual/abi.html: Regenerate.
7746
7747 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
7748
7749         PR libstdc++/107189
7750         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
7751         unused _Alloc_node instance.
7752
7753 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
7754
7755         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
7756         Define as unsigned long if always lock-free, and unsigned int
7757         otherwise.
7758
7759 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
7760
7761         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
7762         __catch macros for exception handling.
7763
7764 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
7765
7766         PR libstdc++/108221
7767         * include/bits/stl_algobase.h (__lg): Replace six overloads with
7768         a single function template for all integer types.
7769         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
7770         arithmetic results back to _Distance.
7771
7772 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
7773
7774         PR libstdc++/108221
7775         * include/std/span (span::span()): Un-simplify constraint to
7776         work for size_t of lesser rank than int.
7777
7778 2023-01-07  LIU Hao  <lh_mouse@126.com>
7779
7780         PR middle-end/108300
7781         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
7782         <windows.h>.
7783         * src/c++11/thread.cc: Likewise.
7784         * src/c++17/fs_ops.cc: Likewise.
7785         * src/filesystem/ops.cc: Likewise.
7786
7787 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7788
7789         PR libstdc++/108228
7790         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
7791
7792 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7793
7794         PR libstdc++/108235
7795         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
7796         template and partial specialization for synchronizing access to
7797         time_zone::_Impl::infos.
7798         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
7799         rules_counter.
7800
7801 2023-01-06  Patrick Palka  <ppalka@redhat.com>
7802
7803         PR libstdc++/108260
7804         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
7805         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
7806         (__cpp_lib_ranges_chunk): Likewise.
7807         (__cpp_lib_ranges_slide): Likewise.
7808         (__cpp_lib_ranges_chunk_by): Likewise.
7809         (__cpp_lib_ranges_join_with): Likewise.
7810         (__cpp_lib_ranges_repeat): Likewise.
7811         (__cpp_lib_ranges_stride): Likewise.
7812         (__cpp_lib_ranges_cartesian_product): Likewise.
7813         (__cpp_lib_ranges_as_rvalue): Likewise.
7814         * include/std/version: Ditto.
7815         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
7816         feature-test macro.
7817         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
7818         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
7819         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
7820         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
7821         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
7822         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
7823         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
7824         * testsuite/std/ranges/repeat/1.cc: Likewise.
7825         * testsuite/std/ranges/zip/1.cc: Likewise.
7826         * testsuite/std/ranges/version_c++23.cc: New test.
7827
7828 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7829
7830         PR libstdc++/108214
7831         * include/std/bitset (operator>>): Use alloca in the right
7832         scope, not in a constructor.
7833         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
7834
7835 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7836
7837         PR libstdc++/108221
7838         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
7839         Disable visiting floating-point types.
7840
7841 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7842
7843         PR libstdc++/108288
7844         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
7845         (_Safe_iterator::operator--(int)): Do not hold lock around
7846         construction of return value.
7847
7848 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
7849
7850         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
7851         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
7852         lock release.  Revise loop.
7853         (__atomic_add): Likewise.
7854
7855 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7856
7857         PR libstdc++/108212
7858         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
7859         variable.
7860         (StdChronoTimePointPrinter::to_string): Use it.
7861
7862 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7863
7864         PR libstdc++/108290
7865         * include/std/functional (_Bind_front): Add no_unique_address
7866         attribute to data members.
7867         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
7868         size of call wrappers with empty types for targets and bound
7869         arguments.
7870
7871 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7872
7873         PR libstdc++/108211
7874         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
7875         using only last component of the name.
7876
7877 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7878
7879         PR libstdc++/108228
7880         PR libstdc++/108235
7881         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
7882         the latest symbol version.
7883         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
7884         atomic<_Node*> is not always lock free.
7885         (USE_ATOMIC_LIST_HEAD): New macro.
7886         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
7887         definition of weak symbol.
7888         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
7889         (tzdb_list::_Node::_S_list_head): New function for accessing
7890         list head efficiently.
7891         (tzdb_list::_Node::_S_cache_list_head): New function for
7892         updating _S_list_head.
7893
7894 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7895
7896         PR libstdc++/108265
7897         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
7898         duration rep is unsigned.
7899         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
7900
7901 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
7902
7903         PR libstdc++/108228
7904         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
7905         Add __gnu_cxx::zoneinfo_dir_override().
7906
7907 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
7908
7909         PR libstdc++/108258
7910         * include/std/array (__array_traits<T, 0>::operator T*()): Add
7911         constexpr.
7912         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
7913         std::array<T, 0>::data().
7914
7915 \f
7916 Copyright (C) 2023 Free Software Foundation, Inc.
7917
7918 Copying and distribution of this file, with or without modification,
7919 are permitted in any medium without royalty provided the copyright
7920 notice and this notice are preserved.