libstdc++-v3/ChangeLog

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