libstdc++-v3/ChangeLog

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