libstdc++-v3/ChangeLog

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