libstdc++-v3/ChangeLog

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