libstdc++-v3/ChangeLog

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