libstdc++-v3/ChangeLog

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