libstdc++-v3/ChangeLog

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