libstdc++-v3/ChangeLog

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