libstdc++-v3/ChangeLog

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