libstdc++-v3/ChangeLog

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