libstdc++-v3/ChangeLog

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