libstdc++-v3/ChangeLog

   1 2023-11-06  Ian Lance Taylor  <iant@golang.org>
   2
   3         PR libbacktrace/111315
   4         PR libbacktrace/112263
   5         * acinclude.m4: Set -D_GNU_SOURCE in BACKTRACE_CPPFLAGS and when
   6         grepping link.h for dl_iterate_phdr.
   7         * configure: Regenerate.
   8
   9 2023-11-06  Jonathan Wakely  <jwakely@redhat.com>
  10
  11         * include/std/expected (expected::and_then, expected::or_else):
  12         Add string literals to static assertions.
  13         * include/std/optional (optional::and_then, optional::or_else):
  14         Likewise.
  15
  16 2023-11-04  Feng Jisen  <J1senn@outlook.com>
  17
  18         * include/bits/utility.h (_Nth_type): Remove redundant partial
  19         specialization.
  20
  21 2023-11-04  Jonathan Wakely  <jwakely@redhat.com>
  22
  23         PR libstdc++/110133
  24         * include/std/system_error (system_error::system_error): Group
  25         arguments so that concatenation can reuse rvalue's capacity.
  26         * src/c++11/system_error.cc (strerror_string): New function.
  27         [_GLIBCXX_HAVE_STRERROR_R] (use_strerror_result): New functions.
  28         (generic_error_category::message): Use strerror_string.
  29         (system_error_category::message): Likewise.
  30
  31 2023-11-04  Jonathan Wakely  <jwakely@redhat.com>
  32
  33         * doc/xml/manual/appendix_contributing.xml: Replace example that
  34         uses a BADNAME.
  35         * doc/html/manual/source_code_style.html: Regenerate.
  36
  37 2023-11-02  Jonathan Wakely  <jwakely@redhat.com>
  38
  39         PR libstdc++/112314
  40         * include/std/string_view (string_view::remove_suffix): Add
  41         debug assertion.
  42         * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/debug.cc:
  43         New test.
  44         * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/debug.cc:
  45         New test.
  46
  47 2023-11-02  Jonathan Wakely  <jwakely@redhat.com>
  48
  49         * acinclude.m4 (GLIBCXX_ENABLE_C99): Fix snprintf checks.
  50         * configure: Regenerate.
  51
  52 2023-10-30  François Dumont  <fdumont@gcc.gnu.org>
  53
  54         * config/abi/pre/gnu-versioned-namespace.ver: Add comment on recently
  55         added emul TLS symbols.
  56
  57 2023-10-30  François Dumont  <fdumont@gcc.gnu.org>
  58
  59         * src/experimental/contract.cc
  60         [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Rework comment.
  61         Remove weak attribute.
  62
  63 2023-10-29  François Dumont  <fdumont@gcc.gnu.org>
  64
  65         * config/abi/pre/gnu-versioned-namespace.ver: Add missing emul TLS
  66         symbols.
  67
  68 2023-10-29  François Dumont  <fdumont@gcc.gnu.org>
  69
  70         * src/experimental/contract.cc
  71         [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Provide symbol
  72         without version namespace decoration for gcc.
  73
  74 2023-10-26  Jonathan Wakely  <jwakely@redhat.com>
  75
  76         PR libstdc++/112089
  77         * include/std/shared_mutex (shared_lock::unlock): Change errc
  78         constant to operation_not_permitted.
  79         * testsuite/30_threads/shared_lock/locking/112089.cc: New test.
  80
  81 2023-10-26  Jonathan Wakely  <jwakely@redhat.com>
  82
  83         * testsuite/20_util/duration/io.cc: Double timeout using
  84         dg-timeout-factor.
  85         * testsuite/std/time/day/io.cc: Likewise.
  86         * testsuite/std/time/format.cc: Likewise.
  87         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
  88         * testsuite/std/time/month/io.cc: Likewise.
  89         * testsuite/std/time/month_day/io.cc: Likewise.
  90         * testsuite/std/time/month_day_last/io.cc: Likewise.
  91         * testsuite/std/time/month_weekday/io.cc: Likewise.
  92         * testsuite/std/time/month_weekday_last/io.cc: Likewise.
  93         * testsuite/std/time/weekday/io.cc: Likewise.
  94         * testsuite/std/time/weekday_indexed/io.cc: Likewise.
  95         * testsuite/std/time/weekday_last/io.cc: Likewise.
  96         * testsuite/std/time/year/io.cc: Likewise.
  97         * testsuite/std/time/year_month/io.cc: Likewise.
  98         * testsuite/std/time/year_month_day/io.cc: Likewise.
  99         * testsuite/std/time/year_month_day_last/io.cc: Likewise.
 100         * testsuite/std/time/year_month_weekday/io.cc: Likewise.
 101         * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
 102         * testsuite/std/time/zoned_time/io.cc: Likewise.
 103
 104 2023-10-25  Jonathan Wakely  <jwakely@redhat.com>
 105
 106         PR libstdc++/111936
 107         * src/libbacktrace/Makefile.am: Add -prefer-pic to libtool
 108         compile commands.
 109         * src/libbacktrace/Makefile.in: Regenerate.
 110
 111 2023-10-24  Paul M. Bendixen  <paulbendixen@gmail.com>
 112
 113         * include/Makefile.am: Move cstdarg, cstdalign and cstdbool to
 114         freestanding.
 115         * include/Makefile.in: Regenerate.
 116
 117 2023-10-22  Iain Sandoe  <iain@sandoe.co.uk>
 118
 119         * configure: Regenerate.
 120         * configure.ac: Handle Darwin rpaths.
 121         * src/Makefile.am: Handle Darwin rpaths.
 122         * src/Makefile.in: Regenerate.
 123
 124 2023-10-21  Jonathan Wakely  <jwakely@redhat.com>
 125
 126         * include/bits/basic_string.h (_M_init_local_buf()): New
 127         function.
 128         (_M_use_local_data()): Use _M_init_local_buf.
 129         (basic_string(), basic_string(const Alloc&))
 130         (basic_string(basic_string&&))
 131         (basic_string(basic_string&&, const Alloc&)): Use
 132         _M_init_local_buf instead of _M_use_local_data().
 133         * include/bits/basic_string.tcc (swap(basic_string&))
 134         (_M_construct(InIter, InIter, input_iterator_tag))
 135         (_M_construct(InIter, InIter, forward_iterator_tag))
 136         (_M_construct(size_type, CharT), reserve()): Likewise.
 137
 138 2023-10-21  Benjamin Brock  <brock@cs.berkeley.edu>
 139
 140         * include/std/ranges (zip_view, adjacent_view): Implement
 141         workaround for LLVM-61763.
 142
 143 2023-10-21  Dimitrij Mijoski  <dmjpp@hotmail.com>
 144
 145         * testsuite/22_locale/codecvt/codecvt_unicode.h: Test length()
 146
 147 2023-10-21  Jonathan Wakely  <jwakely@redhat.com>
 148
 149         * include/bits/fs_dir.h (operator==(default_sentinel_t)): Fix
 150         indentation.
 151
 152 2023-10-20  Marek Polacek  <polacek@redhat.com>
 153
 154         PR testsuite/111883
 155         * include/std/charconv (from_chars): Add explicit casts.
 156
 157 2023-10-19  François Dumont  <fdumont@gcc.gnu.org>
 158
 159         * include/bits/hashtable_policy.h
 160         (_Hash_code_base::_M_hash_code(const _Hash&, const _Hash_node_value<>&)): Remove.
 161         (_Hash_code_base::_M_hash_code<_H2>(const _H2&, const _Hash_node_value<>&)): Remove.
 162         * include/bits/hashtable.h
 163         (_M_src_hash_code<_H2>(const _H2&, const key_type&, const __node_value_type&)): New.
 164         (_M_merge_unique<>, _M_merge_multi<>): Use latter.
 165         * testsuite/23_containers/unordered_map/modifiers/merge.cc
 166         (test04, test05, test06): New test cases.
 167
 168 2023-10-13  Jakub Jelinek  <jakub@redhat.com>
 169
 170         * testsuite/tr1/8_c_compatibility/cstdio/functions.cc (test01):
 171         Initialize stream to va_arg(ap, FILE*) rather than 0.
 172         * testsuite/tr1/8_c_compatibility/cwchar/functions.cc (test01):
 173         Likewise.
 174
 175 2023-10-13  Hans-Peter Nilsson  <hp@axis.com>
 176
 177         * testsuite/29_atomics/atomic/compare_exchange_padding.cc,
 178         testsuite/29_atomics/atomic_flag/clear/1.cc,
 179         testsuite/29_atomics/atomic_flag/cons/value_init.cc,
 180         testsuite/29_atomics/atomic_flag/test_and_set/explicit.cc,
 181         testsuite/29_atomics/atomic_flag/test_and_set/implicit.cc,
 182         testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc,
 183         testsuite/29_atomics/atomic_ref/generic.cc,
 184         testsuite/29_atomics/atomic_ref/integral.cc,
 185         testsuite/29_atomics/atomic_ref/pointer.cc: Replace
 186         dg-require-thread-fence with dg-require-atomic-cmpxchg-word.
 187
 188 2023-10-13  Hans-Peter Nilsson  <hp@axis.com>
 189
 190         * testsuite/lib/dg-options.exp (dg-require-atomic-cmpxchg-word):
 191         New proc.
 192         * testsuite/lib/libstdc++.exp (check_v3_target_atomic_cmpxchg_word):
 193         Ditto.
 194
 195 2023-10-05  François Dumont  <fdumont@gcc.gnu.org>
 196
 197         * config/abi/pre/gnu-versioned-namespace.ver: Add missing symbols
 198         for _Float{16,32,64,128,32x,64x,128x}.
 199
 200 2023-10-04  Tom Tromey  <tromey@adacore.com>
 201
 202         * python/libstdcxx/v6/printers.py
 203         (StdExpAnyPrinter.__init__): Qualify call to
 204         _string_types.
 205
 206 2023-10-04  Tom Tromey  <tromey@adacore.com>
 207
 208         * python/libstdcxx/v6/printers.py: Assume that
 209         _versioned_namespace is non-None.
 210         * python/libstdcxx/v6/xmethods.py (is_specialization_of):
 211         Assume that _versioned_namespace is non-None.
 212
 213 2023-10-04  Tom Tromey  <tromey@adacore.com>
 214
 215         * python/libstdcxx/v6/xmethods.py (_versioned_namespace):
 216         Define.
 217
 218 2023-09-29  Dimitrij Mijoski  <dmjpp@hotmail.com>
 219
 220         PR libstdc++/108976
 221         * src/c++11/codecvt.cc (read_utf8_code_point): Fix handing of
 222         surrogates in UTF-8.
 223         (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-8.
 224         (ucs4_in): Fix handling of range with odd number of bytes.
 225         (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-16.
 226         (ucs2_out): Fix handling of surrogates in UCS-2 -> UTF-16.
 227         (ucs2_in): Fix handling of range with odd number of bytes.
 228         (__codecvt_utf16_base<char16_t>::do_in): Likewise.
 229         (__codecvt_utf16_base<char32_t>::do_in): Likewise.
 230         (__codecvt_utf16_base<wchar_t>::do_in): Likewise.
 231         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Renames, add
 232         tests for codecvt_utf16<char16_t> and codecvt_utf16<char32_t>.
 233         * testsuite/22_locale/codecvt/codecvt_unicode.h: Refactor UTF-8
 234         testing functions for char8_t, add more test cases for errors,
 235         add testing functions for codecvt_utf16.
 236         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc:
 237         Renames, add tests for codecvt_utf16<whchar_t>.
 238         * testsuite/22_locale/codecvt/codecvt_utf16/79980.cc (test06):
 239         Fix test.
 240         * testsuite/22_locale/codecvt/codecvt_unicode_char8_t.cc: New
 241         test.
 242
 243 2023-09-29  Nathaniel Shead  <nathanieloshead@gmail.com>
 244
 245         * include/bits/basic_string.h: (basic_string(basic_string&&)):
 246         Activate _M_local_buf when needed.
 247         (basic_string(basic_string&&, const _Alloc&)): Likewise.
 248         * include/bits/basic_string.tcc: (basic_string::swap): Likewise.
 249         * include/std/variant: (__detail::__variant::__construct_n): New.
 250         (__detail::__variant::__emplace): Use __construct_n.
 251
 252 2023-09-28  Tom Tromey  <tromey@adacore.com>
 253
 254         * python/libstdcxx/v6/printers.py (Printer.add_version)
 255         (add_one_template_type_printer)
 256         (FilteringTypePrinter.add_one_type_printer): Use Python
 257         "not in" operator.
 258
 259 2023-09-28  Tom Tromey  <tromey@adacore.com>
 260
 261         * python/libstdcxx/v6/printers.py (std_ratio_t_tuple):
 262         Remove.
 263
 264 2023-09-28  Tom Tromey  <tromey@adacore.com>
 265
 266         * python/libstdcxx/v6/printers.py
 267         (StdExpOptionalPrinter.__init__, lookup_node_type):
 268         Remove unused variables.
 269
 270 2023-09-28  Tom Tromey  <tromey@adacore.com>
 271
 272         * python/libstdcxx/v6/printers.py: Don't import 'os'.
 273         * python/libstdcxx/v6/__init__.py: Don't import 'gdb'.
 274
 275 2023-09-28  Tom Tromey  <tromey@adacore.com>
 276
 277         * python/libstdcxx/v6/printers.py: Use gdb.ValuePrinter
 278         everywhere.  Rename members to start with "_".
 279
 280 2023-09-28  Tom Tromey  <tromey@adacore.com>
 281
 282         * testsuite/lib/gdb-test.exp (gdb-test): Enable Python
 283         stack traces from gdb.
 284
 285 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
 286
 287         * python/libstdcxx/v6/xmethods.py (is_specialization_of): Define
 288         new function.
 289         (ArrayMethodsMatcher, DequeMethodsMatcher)
 290         (ForwardListMethodsMatcher, ListMethodsMatcher)
 291         (VectorMethodsMatcher, AssociativeContainerMethodsMatcher)
 292         (UniquePtrGetWorker, UniquePtrMethodsMatcher)
 293         (SharedPtrSubscriptWorker, SharedPtrMethodsMatcher): Use
 294         is_specialization_of instead of re.match.
 295
 296 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
 297
 298         * python/libstdcxx/v6/printers.py: Break long lines. Use raw
 299         strings for regular expressions. Add whitespace around
 300         operators.
 301         (is_member_of_namespace): Use isinstance to check type.
 302         (is_specialization_of): Likewise. Adjust template_name
 303         for versioned namespace instead of duplicating the re.match
 304         call.
 305         (StdExpAnyPrinter._string_types): New static method.
 306         (StdExpAnyPrinter.to_string): Use _string_types.
 307
 308 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
 309
 310         * python/libstdcxx/v6/printers.py: Format docstrings according
 311         to PEP 257.
 312         * python/libstdcxx/v6/xmethods.py: Likewise.
 313
 314 2023-09-28  Tim Song  <t.canens.cpp@gmail.com>
 315
 316         PR libstdc++/111050
 317         * include/bits/hashtable_policy.h
 318         (_Hash_node_value_base<>::_M_valptr(), _Hash_node_value_base<>::_M_v())
 319         Add [[__gnu__::__always_inline__]].
 320
 321 2023-09-27  Jonathan Wakely  <jwakely@redhat.com>
 322
 323         * python/libstdcxx/v6/printers.py (StdChronoTimeZoneRulePrinter):
 324         Fix incorrect number of replacement fields.
 325
 326 2023-09-26  Hans-Peter Nilsson  <hp@axis.com>
 327
 328         * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Add
 329         dg-require-thread-fence.
 330
 331 2023-09-25  Patrick Palka  <ppalka@redhat.com>
 332
 333         * include/std/charconv (__detail::__integer_to_chars_result_type):
 334         Remove.
 335         (__detail::__to_chars_16): Use to_chars_result as return type.
 336         (__detail::__to_chars_10): Likewise.
 337         (__detail::__to_chars_8): Likewise.
 338         (__detail::__to_chars_2): Likewise.
 339         (__detail::__to_chars_i): Likewise.
 340         (__detail::__integer_from_chars_result_type): Inline the
 341         constraint into ...
 342         (from_chars): ... here.  Use __is_standard_integer in the
 343         constraint.  Encode constraint as a defaulted non-type template
 344         parameter instead of within the return type.
 345
 346 2023-09-25  John David Anglin  <danglin@gcc.gnu.org>
 347
 348         * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
 349
 350 2023-09-25  Jonathan Wakely  <jwakely@redhat.com>
 351
 352         PR libstdc++/111511
 353         PR c++/111512
 354         * include/std/array (to_array): Cast memcpy arguments to void*.
 355         * testsuite/23_containers/array/creation/111512.cc: New test.
 356
 357 2023-09-25  Jonathan Wakely  <jwakely@redhat.com>
 358
 359         * include/bits/move.h (forward_list): Define for C++23.
 360         * include/bits/version.def (forward_like): Define.
 361         * include/bits/version.h: Regenerate.
 362         * include/std/utility (__glibcxx_want_forward_like): Define.
 363         * testsuite/20_util/forward_like/1.cc: New test.
 364         * testsuite/20_util/forward_like/2_neg.cc: New test.
 365         * testsuite/20_util/forward_like/version.cc: New test.
 366
 367 2023-09-19  Marek Polacek  <polacek@redhat.com>
 368
 369         * testsuite/20_util/allocator/105975.cc: Add dg-error.
 370
 371 2023-09-18  Patrick Palka  <ppalka@redhat.com>
 372
 373         PR c++/63198
 374         PR c++/18474
 375         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
 376         Make data member seed_seq::called mutable.
 377         * testsuite/26_numerics/random/independent_bits_engine/cons/seed_seq2.cc:
 378         Likewise.
 379         * testsuite/26_numerics/random/linear_congruential_engine/cons/seed_seq2.cc:
 380         Likewise.
 381         * testsuite/26_numerics/random/mersenne_twister_engine/cons/seed_seq2.cc:
 382         Likewise.
 383         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
 384         Likewise.
 385         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/seed_seq2.cc:
 386         Likewise.
 387         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/seed_seq2.cc:
 388         Likewise.
 389
 390 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
 391
 392         * doc/xml/manual/status_cxx2020.xml: Tweak P1466R3 status.
 393         * doc/html/manual/status.html: Regenerate.
 394
 395 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
 396
 397         * doc/xml/manual/configure.xml: Use conventional option name.
 398         * doc/xml/manual/status_cxx2020.xml: Update.
 399         * doc/xml/manual/status_cxx2023.xml: Update.
 400         * doc/html/*: Regenerate.
 401
 402 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
 403
 404         * doc/xml/manual/intro.xml: Clarify that building libstdc++
 405         separately from GCC is not supported.
 406         * doc/xml/manual/prerequisites.xml: Note msgfmt prerequisite for
 407         testing.
 408         * doc/html/manual/setup.html: Regenerate.
 409
 410 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 411
 412         * testsuite/29_atomics/atomic_ref/wait_notify.cc: Do not
 413         restrict to pthreads targets.
 414         * testsuite/30_threads/jthread/3.cc: Likewise.
 415         * testsuite/30_threads/semaphore/100806.cc: Likewise.
 416         * testsuite/30_threads/semaphore/try_acquire.cc: Likewise.
 417         * testsuite/30_threads/semaphore/try_acquire_for.cc: Likewise.
 418         * testsuite/30_threads/semaphore/try_acquire_posix.cc: Likewise.
 419
 420 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 421
 422         * testsuite/18_support/coroutines/95917.cc: Remove dg-options
 423         -std=gnu++2a.
 424         * testsuite/18_support/coroutines/hash.cc: Likewise.
 425         * testsuite/18_support/coroutines/lwg3460.cc: Likewise.
 426         * testsuite/18_support/destroying_delete.cc: Likewise.
 427         * testsuite/18_support/source_location/1.cc: Likewise.
 428         * testsuite/18_support/source_location/consteval.cc: Likewise.
 429         * testsuite/18_support/source_location/version.cc: Likewise.
 430         * testsuite/19_diagnostics/error_category/operators/three_way.cc:
 431         Likewise.
 432         * testsuite/19_diagnostics/error_code/operators/three_way.cc:
 433         Likewise.
 434         * testsuite/19_diagnostics/error_condition/operators/three_way.cc:
 435         Likewise.
 436         * testsuite/19_diagnostics/stacktrace/output.cc: Likewise.
 437         * testsuite/26_numerics/adjacent_difference/lwg2055.cc:
 438         Likewise.
 439         * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
 440         * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
 441         * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
 442         * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
 443         * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: Likewise.
 444         * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc:
 445         Likewise.
 446         * testsuite/28_regex/iterators/regex_iterator/lwg3719.cc:
 447         Likewise.
 448         * testsuite/28_regex/iterators/regex_token_iterator/lwg3719.cc:
 449         Likewise.
 450         * testsuite/28_regex/sub_match/compare_c++20.cc: Likewise.
 451         * testsuite/experimental/filesystem/iterators/106201.cc:
 452         Likewise.
 453         * testsuite/experimental/scopeguard/exit.cc: Likewise.
 454         * testsuite/experimental/scopeguard/uniqueres.cc: Likewise.
 455
 456 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 457
 458         * testsuite/30_threads/barrier/1.cc: Remove dg-options
 459         -std=gnu++20.
 460         * testsuite/30_threads/barrier/2.cc: Likewise.
 461         * testsuite/30_threads/barrier/arrive.cc: Likewise.
 462         * testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
 463         * testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
 464         * testsuite/30_threads/barrier/completion.cc: Likewise.
 465         * testsuite/30_threads/condition_variable/members/clock_neg.cc:
 466         Likewise.
 467         * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
 468         Likewise.
 469         * testsuite/30_threads/condition_variable_any/stop_token/1.cc:
 470         Likewise.
 471         * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
 472         Likewise.
 473         * testsuite/30_threads/future/members/clock_neg.cc: Likewise.
 474         * testsuite/30_threads/headers/stop_token/synopsis.cc: Likewise.
 475         * testsuite/30_threads/headers/thread/types_std_c++20.cc:
 476         Likewise.
 477         * testsuite/30_threads/jthread/1.cc: Likewise.
 478         * testsuite/30_threads/jthread/100612.cc: Likewise.
 479         * testsuite/30_threads/jthread/95989.cc: Likewise.
 480         * testsuite/30_threads/jthread/jthread.cc: Likewise.
 481         * testsuite/30_threads/jthread/version.cc: Likewise.
 482         * testsuite/30_threads/latch/1.cc: Likewise.
 483         * testsuite/30_threads/latch/2.cc: Likewise.
 484         * testsuite/30_threads/latch/3.cc: Likewise.
 485         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/clock_neg.cc:
 486         Likewise.
 487         * testsuite/30_threads/semaphore/1.cc: Likewise.
 488         * testsuite/30_threads/semaphore/2.cc: Likewise.
 489         * testsuite/30_threads/semaphore/least_max_value_neg.cc:
 490         Likewise.
 491         * testsuite/30_threads/semaphore/try_acquire_until.cc: Likewise.
 492         * testsuite/30_threads/shared_future/members/clock_neg.cc:
 493         Likewise.
 494         * testsuite/30_threads/shared_lock/locking/clock_neg.cc:
 495         Likewise.
 496         * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
 497         Likewise.
 498         * testsuite/30_threads/stop_token/1.cc: Likewise.
 499         * testsuite/30_threads/stop_token/2.cc: Likewise.
 500         * testsuite/30_threads/stop_token/stop_callback.cc: Likewise.
 501         * testsuite/30_threads/stop_token/stop_callback/deadlock.cc:
 502         Likewise.
 503         * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
 504         Likewise.
 505         * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc:
 506         Likewise.
 507         * testsuite/30_threads/stop_token/stop_callback/invoke.cc:
 508         Likewise.
 509         * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
 510         * testsuite/30_threads/stop_token/stop_source/assign.cc:
 511         Likewise.
 512         * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
 513         * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
 514         Likewise.
 515         * testsuite/30_threads/thread/id/operators_c++20.cc: Likewise.
 516         * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc:
 517         Likewise.
 518         * testsuite/30_threads/unique_lock/locking/clock_neg.cc:
 519         Likewise.
 520
 521 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 522
 523         * testsuite/27_io/basic_istream/extractors_character/char/lwg2499.cc:
 524         Remove dg-options -std=gnu++2a.
 525         * testsuite/27_io/basic_istream/extractors_character/char/lwg2499_neg.cc:
 526         Likewise.
 527         * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499.cc:
 528         Likewise.
 529         * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499_neg.cc:
 530         Likewise.
 531         * testsuite/27_io/basic_istringstream/cons/char/1.cc: Likewise.
 532         * testsuite/27_io/basic_istringstream/cons/wchar_t/1.cc:
 533         Likewise.
 534         * testsuite/27_io/basic_istringstream/str/char/2.cc: Likewise.
 535         * testsuite/27_io/basic_istringstream/str/wchar_t/2.cc:
 536         Likewise.
 537         * testsuite/27_io/basic_istringstream/view/char/1.cc: Likewise.
 538         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
 539         Likewise.
 540         * testsuite/27_io/basic_ostream/emit/1.cc: Likewise.
 541         * testsuite/27_io/basic_ostream/inserters_character/char/deleted.cc:
 542         Likewise.
 543         * testsuite/27_io/basic_ostream/inserters_character/wchar_t/deleted.cc:
 544         Likewise.
 545         * testsuite/27_io/basic_ostringstream/cons/char/1.cc: Likewise.
 546         * testsuite/27_io/basic_ostringstream/cons/wchar_t/1.cc:
 547         Likewise.
 548         * testsuite/27_io/basic_ostringstream/str/char/3.cc: Likewise.
 549         * testsuite/27_io/basic_ostringstream/str/wchar_t/3.cc:
 550         Likewise.
 551         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
 552         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
 553         Likewise.
 554         * testsuite/27_io/basic_stringbuf/cons/char/2.cc: Likewise.
 555         * testsuite/27_io/basic_stringbuf/cons/wchar_t/2.cc: Likewise.
 556         * testsuite/27_io/basic_stringbuf/str/char/4.cc: Likewise.
 557         * testsuite/27_io/basic_stringbuf/str/wchar_t/4.cc: Likewise.
 558         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
 559         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
 560         * testsuite/27_io/basic_stringstream/cons/char/1.cc: Likewise.
 561         * testsuite/27_io/basic_stringstream/cons/char/97719.cc:
 562         Likewise.
 563         * testsuite/27_io/basic_stringstream/cons/wchar_t/1.cc:
 564         Likewise.
 565         * testsuite/27_io/basic_stringstream/str/char/5.cc: Likewise.
 566         * testsuite/27_io/basic_stringstream/str/wchar_t/5.cc.cc:
 567         Likewise.
 568         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
 569         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
 570         Likewise.
 571         * testsuite/27_io/basic_syncbuf/1.cc: Likewise.
 572         * testsuite/27_io/basic_syncbuf/2.cc: Likewise.
 573         * testsuite/27_io/basic_syncbuf/basic_ops/1.cc: Likewise.
 574         * testsuite/27_io/basic_syncbuf/requirements/types.cc: Likewise.
 575         * testsuite/27_io/basic_syncbuf/sync_ops/1.cc: Likewise.
 576         * testsuite/27_io/basic_syncstream/1.cc: Likewise.
 577         * testsuite/27_io/basic_syncstream/2.cc: Likewise.
 578         * testsuite/27_io/basic_syncstream/basic_ops/1.cc: Likewise.
 579         * testsuite/27_io/basic_syncstream/requirements/types.cc:
 580         Likewise.
 581         * testsuite/27_io/filesystem/iterators/106201.cc: Likewise.
 582         * testsuite/27_io/filesystem/iterators/lwg3719.cc: Likewise.
 583         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc:
 584         Likewise.
 585         * testsuite/27_io/filesystem/path/nonmember/cmp_c++20.cc:
 586         Likewise.
 587
 588 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 589
 590         * testsuite/26_numerics/accumulate/constexpr.cc: Remove
 591         dg-options -std=gnu++2a.
 592         * testsuite/26_numerics/accumulate/lwg2055.cc: Likewise.
 593         * testsuite/26_numerics/adjacent_difference/constexpr.cc:
 594         Likewise.
 595         * testsuite/26_numerics/bit/bit.cast/105027.cc: Likewise.
 596         * testsuite/26_numerics/bit/bit.cast/bit_cast.cc: Likewise.
 597         * testsuite/26_numerics/bit/bit.cast/version.cc: Likewise.
 598         * testsuite/26_numerics/bit/bit.count/countl_one.cc: Likewise.
 599         * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc:
 600         Likewise.
 601         * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: Likewise.
 602         * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: Likewise.
 603         * testsuite/26_numerics/bit/bit.pow.two/lwg3656.cc: Likewise.
 604         * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
 605         * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
 606         * testsuite/26_numerics/bit/header-2.cc: Likewise.
 607         * testsuite/26_numerics/bit/header.cc: Likewise.
 608         * testsuite/26_numerics/complex/1.cc: Likewise.
 609         * testsuite/26_numerics/complex/2.cc: Likewise.
 610         * testsuite/26_numerics/complex/comparison_operators/more_constexpr.cc:
 611         Likewise.
 612         * testsuite/26_numerics/complex/operators/more_constexpr.cc:
 613         Likewise.
 614         * testsuite/26_numerics/complex/requirements/more_constexpr.cc:
 615         Likewise.
 616         * testsuite/26_numerics/complex/value_operations/more_constexpr.cc:
 617         Likewise.
 618         * testsuite/26_numerics/endian/1.cc: Likewise.
 619         * testsuite/26_numerics/endian/2.cc: Likewise.
 620         * testsuite/26_numerics/endian/3.cc: Likewise.
 621         * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
 622         * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
 623         * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
 624         * testsuite/26_numerics/inner_product/lwg2055.cc: Likewise.
 625         * testsuite/26_numerics/iota/constexpr.cc: Likewise.
 626         * testsuite/26_numerics/lerp/1.cc: Likewise.
 627         * testsuite/26_numerics/lerp/constexpr.cc: Likewise.
 628         * testsuite/26_numerics/lerp/version.cc: Likewise.
 629         * testsuite/26_numerics/midpoint/floating.cc: Likewise.
 630         * testsuite/26_numerics/midpoint/integral.cc: Likewise.
 631         * testsuite/26_numerics/midpoint/pointer.cc: Likewise.
 632         * testsuite/26_numerics/midpoint/pointer_neg.cc: Likewise.
 633         * testsuite/26_numerics/midpoint/version.cc: Likewise.
 634         * testsuite/26_numerics/numbers/1.cc: Likewise.
 635         * testsuite/26_numerics/numbers/2.cc: Likewise.
 636         * testsuite/26_numerics/numbers/3.cc: Likewise.
 637         * testsuite/26_numerics/numbers/float128.cc: Likewise.
 638         * testsuite/26_numerics/numbers/nonfloat_neg.cc: Likewise.
 639         * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
 640         * testsuite/26_numerics/partial_sum/lwg2055.cc: Likewise.
 641         * testsuite/26_numerics/random/concept.cc: Likewise.
 642         * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
 643         * testsuite/26_numerics/slice/compare.cc: Likewise.
 644         * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc:
 645         Likewise.
 646         * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc:
 647         Likewise.
 648         * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
 649
 650 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 651
 652         * testsuite/24_iterators/aliases.cc: Remove dg-options
 653         -std=gnu++2a.
 654         * testsuite/24_iterators/associated_types/incrementable.traits.cc:
 655         Likewise.
 656         * testsuite/24_iterators/associated_types/iterator.traits.cc:
 657         Likewise.
 658         * testsuite/24_iterators/associated_types/readable.traits.cc:
 659         Likewise.
 660         * testsuite/24_iterators/back_insert_iterator/constexpr.cc:
 661         Likewise.
 662         * testsuite/24_iterators/back_insert_iterator/pr93884.cc:
 663         Likewise.
 664         * testsuite/24_iterators/bidirectional/concept.cc: Likewise.
 665         * testsuite/24_iterators/common_iterator/1.cc: Likewise.
 666         * testsuite/24_iterators/common_iterator/100823.cc: Likewise.
 667         * testsuite/24_iterators/common_iterator/2.cc: Likewise.
 668         * testsuite/24_iterators/contiguous/concept.cc: Likewise.
 669         * testsuite/24_iterators/contiguous/tag.cc: Likewise.
 670         * testsuite/24_iterators/counted_iterator/1.cc: Likewise.
 671         * testsuite/24_iterators/counted_iterator/lwg3389.cc: Likewise.
 672         * testsuite/24_iterators/counted_iterator/lwg3643.cc: Likewise.
 673         * testsuite/24_iterators/customization_points/92894.cc:
 674         Likewise.
 675         * testsuite/24_iterators/customization_points/iter_move.cc:
 676         Likewise.
 677         * testsuite/24_iterators/customization_points/iter_swap.cc:
 678         Likewise.
 679         * testsuite/24_iterators/customization_points/lwg3420.cc:
 680         Likewise.
 681         * testsuite/24_iterators/forward/concept.cc: Likewise.
 682         * testsuite/24_iterators/front_insert_iterator/constexpr.cc:
 683         Likewise.
 684         * testsuite/24_iterators/front_insert_iterator/pr93884.cc:
 685         Likewise.
 686         * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
 687         Likewise.
 688         * testsuite/24_iterators/indirect_callable/92894.cc: Likewise.
 689         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
 690         Likewise.
 691         * testsuite/24_iterators/indirect_callable/projected.cc:
 692         Likewise.
 693         * testsuite/24_iterators/input/concept.cc: Likewise.
 694         * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
 695         * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
 696         Likewise.
 697         * testsuite/24_iterators/istream_iterator/sentinel.cc: Likewise.
 698         * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
 699         Likewise.
 700         * testsuite/24_iterators/istreambuf_iterator/sentinel.cc:
 701         Likewise.
 702         * testsuite/24_iterators/move_iterator/cust.cc: Likewise.
 703         * testsuite/24_iterators/move_iterator/dr3435.cc: Likewise.
 704         * testsuite/24_iterators/move_iterator/input_iterator.cc:
 705         Likewise.
 706         * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
 707         * testsuite/24_iterators/move_iterator/lwg3391.cc: Likewise.
 708         * testsuite/24_iterators/move_iterator/move_only.cc: Likewise.
 709         * testsuite/24_iterators/move_iterator/p2520r0.cc: Likewise.
 710         * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
 711         Likewise.
 712         * testsuite/24_iterators/move_iterator/sentinel.cc: Likewise.
 713         * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: Likewise.
 714         * testsuite/24_iterators/output/concept.cc: Likewise.
 715         * testsuite/24_iterators/random_access/concept.cc: Likewise.
 716         * testsuite/24_iterators/range_access/range_access_cpp20.cc:
 717         Likewise.
 718         * testsuite/24_iterators/range_access/range_access_cpp20_neg.cc:
 719         Likewise.
 720         * testsuite/24_iterators/range_operations/100768.cc: Likewise.
 721         * testsuite/24_iterators/range_operations/advance.cc: Likewise.
 722         * testsuite/24_iterators/range_operations/advance_overflow.cc:
 723         Likewise.
 724         * testsuite/24_iterators/range_operations/distance.cc: Likewise.
 725         * testsuite/24_iterators/range_operations/lwg3392.cc: Likewise.
 726         * testsuite/24_iterators/range_operations/next.cc: Likewise.
 727         * testsuite/24_iterators/range_operations/prev.cc: Likewise.
 728         * testsuite/24_iterators/reverse_iterator/cust.cc: Likewise.
 729         * testsuite/24_iterators/reverse_iterator/dr3435.cc: Likewise.
 730         * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
 731         Likewise.
 732
 733 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 734
 735         * testsuite/23_containers/array/comparison_operators/96851.cc:
 736         Remove dg-options -std=gnu++2a.
 737         * testsuite/23_containers/array/comparison_operators/constexpr.cc:
 738         Likewise.
 739         * testsuite/23_containers/array/creation/1.cc: Likewise.
 740         * testsuite/23_containers/array/creation/110167.cc: Likewise.
 741         * testsuite/23_containers/array/creation/2.cc: Likewise.
 742         * testsuite/23_containers/array/creation/3_neg.cc: Likewise.
 743         * testsuite/23_containers/array/requirements/constexpr_fill.cc:
 744         Likewise.
 745         * testsuite/23_containers/array/requirements/constexpr_swap.cc:
 746         Likewise.
 747         * testsuite/23_containers/deque/48101-3_neg.cc: Likewise.
 748         * testsuite/23_containers/deque/erasure.cc: Likewise.
 749         * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
 750         Likewise.
 751         * testsuite/23_containers/deque/operators/cmp_c++20.cc:
 752         Likewise.
 753         * testsuite/23_containers/forward_list/48101-3_neg.cc: Likewise.
 754         * testsuite/23_containers/forward_list/cmp_c++20.cc: Likewise.
 755         * testsuite/23_containers/forward_list/erasure.cc: Likewise.
 756         * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
 757         Likewise.
 758         * testsuite/23_containers/forward_list/operations/remove_cxx20_return.cc:
 759         Likewise.
 760         * testsuite/23_containers/forward_list/operations/unique_cxx20_return.cc:
 761         Likewise.
 762         * testsuite/23_containers/list/48101-3_neg.cc: Likewise.
 763         * testsuite/23_containers/list/cmp_c++20.cc: Likewise.
 764         * testsuite/23_containers/list/erasure.cc: Likewise.
 765         * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
 766         Likewise.
 767         * testsuite/23_containers/list/operations/remove_cxx20_return.cc:
 768         Likewise.
 769         * testsuite/23_containers/list/operations/unique_cxx20_return.cc:
 770         Likewise.
 771         * testsuite/23_containers/map/48101-3_neg.cc: Likewise.
 772         * testsuite/23_containers/map/erasure.cc: Likewise.
 773         * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
 774         Likewise.
 775         * testsuite/23_containers/map/operations/contains.cc: Likewise.
 776         * testsuite/23_containers/map/operators/cmp_c++20.cc: Likewise.
 777         * testsuite/23_containers/multimap/48101-3_neg.cc: Likewise.
 778         * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
 779         Likewise.
 780         * testsuite/23_containers/multimap/operations/contains.cc:
 781         Likewise.
 782         * testsuite/23_containers/multimap/operators/cmp_c++20.cc:
 783         Likewise.
 784         * testsuite/23_containers/multiset/48101-3_neg.cc: Likewise.
 785         * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
 786         Likewise.
 787         * testsuite/23_containers/multiset/operations/contains.cc:
 788         Likewise.
 789         * testsuite/23_containers/multiset/operators/cmp_c++20.cc:
 790         Likewise.
 791         * testsuite/23_containers/priority_queue/92878_92947.cc:
 792         Likewise.
 793         * testsuite/23_containers/queue/92878_92947.cc: Likewise.
 794         * testsuite/23_containers/queue/cmp_c++20.cc: Likewise.
 795         * testsuite/23_containers/set/48101-3_neg.cc: Likewise.
 796         * testsuite/23_containers/set/erasure.cc: Likewise.
 797         * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
 798         Likewise.
 799         * testsuite/23_containers/set/operations/contains.cc: Likewise.
 800         * testsuite/23_containers/set/operators/cmp_c++20.cc: Likewise.
 801         * testsuite/23_containers/span/1.cc: Likewise.
 802         * testsuite/23_containers/span/101411.cc: Likewise.
 803         * testsuite/23_containers/span/2.cc: Likewise.
 804         * testsuite/23_containers/span/deduction.cc: Likewise.
 805         * testsuite/23_containers/span/explicit.cc: Likewise.
 806         * testsuite/23_containers/span/layout_compat.cc: Likewise.
 807         * testsuite/23_containers/span/lwg3255.cc: Likewise.
 808         * testsuite/23_containers/span/nothrow_cons.cc: Likewise.
 809         * testsuite/23_containers/span/trivially_copyable.cc: Likewise.
 810         * testsuite/23_containers/stack/92878_92947.cc: Likewise.
 811         * testsuite/23_containers/stack/cmp_c++20.cc: Likewise.
 812         * testsuite/23_containers/unordered_map/48101-3_neg.cc:
 813         Likewise.
 814         * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
 815         * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
 816         Likewise.
 817         * testsuite/23_containers/unordered_map/operations/1.cc:
 818         Likewise.
 819         * testsuite/23_containers/unordered_map/operations/contains.cc:
 820         Likewise.
 821         * testsuite/23_containers/unordered_multimap/48101-3_neg.cc:
 822         Likewise.
 823         * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
 824         Likewise.
 825         * testsuite/23_containers/unordered_multimap/operations/1.cc:
 826         Likewise.
 827         * testsuite/23_containers/unordered_multimap/operations/contains.cc:
 828         Likewise.
 829         * testsuite/23_containers/unordered_multiset/48101-3_neg.cc:
 830         Likewise.
 831         * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
 832         Likewise.
 833         * testsuite/23_containers/unordered_multiset/operations/1.cc:
 834         Likewise.
 835         * testsuite/23_containers/unordered_multiset/operations/contains.cc:
 836         Likewise.
 837         * testsuite/23_containers/unordered_set/48101-3_neg.cc:
 838         Likewise.
 839         * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
 840         * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
 841         Likewise.
 842         * testsuite/23_containers/unordered_set/operations/1.cc:
 843         Likewise.
 844         * testsuite/23_containers/unordered_set/operations/contains.cc:
 845         Likewise.
 846         * testsuite/23_containers/vector/48101-3_neg.cc: Likewise.
 847         * testsuite/23_containers/vector/bool/capacity/constexpr.cc:
 848         Likewise.
 849         * testsuite/23_containers/vector/bool/cmp_c++20.cc: Likewise.
 850         * testsuite/23_containers/vector/bool/cons/constexpr.cc:
 851         Likewise.
 852         * testsuite/23_containers/vector/bool/element_access/constexpr.cc:
 853         Likewise.
 854         * testsuite/23_containers/vector/bool/iterator_c++20.cc:
 855         Likewise.
 856         * testsuite/23_containers/vector/bool/modifiers/assign/constexpr.cc:
 857         Likewise.
 858         * testsuite/23_containers/vector/bool/modifiers/constexpr.cc:
 859         Likewise.
 860         * testsuite/23_containers/vector/bool/modifiers/swap/constexpr.cc:
 861         Likewise.
 862         * testsuite/23_containers/vector/capacity/constexpr.cc:
 863         Likewise.
 864         * testsuite/23_containers/vector/cmp_c++20.cc: Likewise.
 865         * testsuite/23_containers/vector/cons/constexpr.cc: Likewise.
 866         * testsuite/23_containers/vector/data_access/constexpr.cc:
 867         Likewise.
 868         * testsuite/23_containers/vector/element_access/constexpr.cc:
 869         Likewise.
 870         * testsuite/23_containers/vector/erasure.cc: Likewise.
 871         * testsuite/23_containers/vector/modifiers/assign/constexpr.cc:
 872         Likewise.
 873         * testsuite/23_containers/vector/modifiers/constexpr.cc:
 874         Likewise.
 875         * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
 876         Likewise.
 877         * testsuite/23_containers/vector/modifiers/swap/constexpr.cc:
 878         Likewise.
 879         * testsuite/23_containers/vector/requirements/version.cc:
 880         Likewise.
 881
 882 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 883
 884         * testsuite/21_strings/basic_string/cons/char/105995.cc: Remove
 885         dg-options -std=gnu++20.
 886         * testsuite/21_strings/basic_string/cons/char/constexpr.cc:
 887         Likewise.
 888         * testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc:
 889         Likewise.
 890         * testsuite/21_strings/basic_string/erasure.cc: Likewise.
 891         * testsuite/21_strings/basic_string/hash/hash_char8_t.cc:
 892         Likewise.
 893         * testsuite/21_strings/basic_string/literals/constexpr.cc:
 894         Likewise.
 895         * testsuite/21_strings/basic_string/modifiers/constexpr.cc:
 896         Likewise.
 897         * testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc:
 898         Likewise.
 899         * testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc:
 900         Likewise.
 901         * testsuite/21_strings/basic_string/operations/ends_with/char.cc:
 902         Likewise.
 903         * testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc:
 904         Likewise.
 905         * testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc:
 906         Likewise.
 907         * testsuite/21_strings/basic_string/operations/starts_with/char.cc:
 908         Likewise.
 909         * testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc:
 910         Likewise.
 911         * testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc:
 912         Likewise.
 913         * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc:
 914         Likewise.
 915         * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
 916         Likewise.
 917         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
 918         Likewise.
 919         * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
 920         Likewise.
 921         * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc:
 922         Likewise.
 923         * testsuite/21_strings/basic_string_view/operations/ends_with/char.cc:
 924         Likewise.
 925         * testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc:
 926         Likewise.
 927         * testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc:
 928         Likewise.
 929         * testsuite/21_strings/basic_string_view/operations/starts_with/char.cc:
 930         Likewise.
 931         * testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc:
 932         Likewise.
 933         * testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc:
 934         Likewise.
 935         * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
 936         Likewise.
 937         * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
 938         Likewise.
 939         * testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc:
 940         Likewise.
 941         * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
 942         Likewise.
 943
 944 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 945
 946         * testsuite/20_util/allocator/105975.cc: Remove dg-options
 947         -std=gnu++2a.
 948         * testsuite/20_util/allocator/rebind_c++20.cc: Likewise.
 949         * testsuite/20_util/allocator/requirements/constexpr.cc:
 950         Likewise.
 951         * testsuite/20_util/allocator/requirements/typedefs_c++20.cc:
 952         Likewise.
 953         * testsuite/20_util/allocator_traits/header-2.cc: Likewise.
 954         * testsuite/20_util/allocator_traits/header.cc: Likewise.
 955         * testsuite/20_util/allocator_traits/members/92878_92947.cc:
 956         Likewise.
 957         * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
 958         * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
 959         * testsuite/20_util/assume_aligned/1.cc: Likewise.
 960         * testsuite/20_util/assume_aligned/2_neg.cc: Likewise.
 961         * testsuite/20_util/assume_aligned/3.cc: Likewise.
 962         * testsuite/20_util/assume_aligned/97132.cc: Likewise.
 963         * testsuite/20_util/bind/constexpr.cc: Likewise.
 964         * testsuite/20_util/bitset/operations/96303.cc: Likewise.
 965         * testsuite/20_util/common_reference/100894.cc: Likewise.
 966         * testsuite/20_util/common_reference/requirements/alias_decl.cc:
 967         Likewise.
 968         * testsuite/20_util/common_reference/requirements/explicit_instantiation.cc:
 969         Likewise.
 970         * testsuite/20_util/common_reference/requirements/typedefs.cc:
 971         Likewise.
 972         * testsuite/20_util/duration/comparison_operators/three_way.cc:
 973         Likewise.
 974         * testsuite/20_util/exchange/constexpr.cc: Likewise.
 975         * testsuite/20_util/exchange/noexcept.cc: Likewise.
 976         * testsuite/20_util/from_chars/1_c++20_neg.cc: Likewise.
 977         * testsuite/20_util/from_chars/compare.cc: Likewise.
 978         * testsuite/20_util/function_objects/bind_front/1.cc: Likewise.
 979         * testsuite/20_util/function_objects/bind_front/107784.cc:
 980         Likewise.
 981         * testsuite/20_util/function_objects/bind_front/111327.cc:
 982         Likewise.
 983         * testsuite/20_util/function_objects/bind_front/2.cc: Likewise.
 984         * testsuite/20_util/function_objects/bind_front/97101.cc:
 985         Likewise.
 986         * testsuite/20_util/function_objects/bind_front/constexpr.cc:
 987         Likewise.
 988         * testsuite/20_util/function_objects/constexpr_searcher.cc:
 989         Likewise.
 990         * testsuite/20_util/function_objects/identity/1.cc: Likewise.
 991         * testsuite/20_util/function_objects/invoke/constexpr.cc:
 992         Likewise.
 993         * testsuite/20_util/function_objects/mem_fn/constexpr.cc:
 994         Likewise.
 995         * testsuite/20_util/function_objects/not_fn/constexpr.cc:
 996         Likewise.
 997         * testsuite/20_util/integer_comparisons/1.cc: Likewise.
 998         * testsuite/20_util/integer_comparisons/2.cc: Likewise.
 999         * testsuite/20_util/integer_comparisons/equal.cc: Likewise.
1000         * testsuite/20_util/integer_comparisons/equal_neg.cc: Likewise.
1001         * testsuite/20_util/integer_comparisons/greater.cc: Likewise.
1002         * testsuite/20_util/integer_comparisons/greater_equal.cc:
1003         Likewise.
1004         * testsuite/20_util/integer_comparisons/greater_equal_neg.cc:
1005         Likewise.
1006         * testsuite/20_util/integer_comparisons/greater_neg.cc:
1007         Likewise.
1008         * testsuite/20_util/integer_comparisons/in_range.cc: Likewise.
1009         * testsuite/20_util/integer_comparisons/in_range_neg.cc:
1010         Likewise.
1011         * testsuite/20_util/integer_comparisons/less.cc: Likewise.
1012         * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
1013         * testsuite/20_util/integer_comparisons/less_equal_neg.cc:
1014         Likewise.
1015         * testsuite/20_util/integer_comparisons/less_neg.cc: Likewise.
1016         * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
1017         * testsuite/20_util/integer_comparisons/not_equal_neg.cc:
1018         Likewise.
1019         * testsuite/20_util/is_bounded_array/requirements/explicit_instantiation.cc:
1020         Likewise.
1021         * testsuite/20_util/is_bounded_array/requirements/typedefs.cc:
1022         Likewise.
1023         * testsuite/20_util/is_bounded_array/value.cc: Likewise.
1024         * testsuite/20_util/is_constant_evaluated/1.cc: Likewise.
1025         * testsuite/20_util/is_constant_evaluated/noexcept.cc: Likewise.
1026         * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
1027         * testsuite/20_util/is_layout_compatible/is_corresponding_member.cc:
1028         Likewise.
1029         * testsuite/20_util/is_layout_compatible/value.cc: Likewise.
1030         * testsuite/20_util/is_layout_compatible/version.cc: Likewise.
1031         * testsuite/20_util/is_nothrow_constructible/value_c++20.cc:
1032         Likewise.
1033         * testsuite/20_util/is_nothrow_convertible/requirements/explicit_instantiation.cc:
1034         Likewise.
1035         * testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
1036         Likewise.
1037         * testsuite/20_util/is_nothrow_convertible/value.cc: Likewise.
1038         * testsuite/20_util/is_pod/deprecated-2a.cc: Likewise.
1039         * testsuite/20_util/is_pointer_interconvertible/value.cc:
1040         Likewise.
1041         * testsuite/20_util/is_pointer_interconvertible/version.cc:
1042         Likewise.
1043         * testsuite/20_util/is_pointer_interconvertible/with_class.cc:
1044         Likewise.
1045         * testsuite/20_util/is_unbounded_array/requirements/explicit_instantiation.cc:
1046         Likewise.
1047         * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc:
1048         Likewise.
1049         * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
1050         * testsuite/20_util/optional/assignment/92878_92947.cc:
1051         Likewise.
1052         * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
1053         * testsuite/20_util/optional/constexpr/assign.cc: Likewise.
1054         * testsuite/20_util/optional/constexpr/cons/conv.cc: Likewise.
1055         * testsuite/20_util/optional/constexpr/modifiers.cc: Likewise.
1056         * testsuite/20_util/optional/constexpr/swap.cc: Likewise.
1057         * testsuite/20_util/optional/relops/96269.cc: Likewise.
1058         * testsuite/20_util/optional/relops/three_way.cc: Likewise.
1059         * testsuite/20_util/pair/comparison_operators/constexpr_c++20.cc:
1060         Likewise.
1061         * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
1062         * testsuite/20_util/pair/constexpr_assign.cc: Likewise.
1063         * testsuite/20_util/pair/constexpr_swap.cc: Likewise.
1064         * testsuite/20_util/pair/requirements/structural.cc: Likewise.
1065         * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc:
1066         Likewise.
1067         * testsuite/20_util/polymorphic_allocator/allocate_object.cc:
1068         Likewise.
1069         * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc:
1070         Likewise.
1071         * testsuite/20_util/polymorphic_allocator/lwg3237.cc: Likewise.
1072         * testsuite/20_util/reference_wrapper/constexpr.cc: Likewise.
1073         * testsuite/20_util/reference_wrapper/incomplete.cc: Likewise.
1074         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc:
1075         Likewise.
1076         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
1077         Likewise.
1078         * testsuite/20_util/remove_cvref/value.cc: Likewise.
1079         * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc:
1080         Likewise.
1081         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
1082         Likewise.
1083         * testsuite/20_util/shared_ptr/casts/rval.cc: Likewise.
1084         * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc:
1085         Likewise.
1086         * testsuite/20_util/shared_ptr/cons/alias-rval.cc: Likewise.
1087         * testsuite/20_util/shared_ptr/creation/92878_92947.cc:
1088         Likewise.
1089         * testsuite/20_util/shared_ptr/creation/array.cc: Likewise.
1090         * testsuite/20_util/shared_ptr/creation/overwrite.cc: Likewise.
1091         * testsuite/20_util/shared_ptr/creation/version.cc: Likewise.
1092         * testsuite/20_util/time_point/4.cc: Likewise.
1093         * testsuite/20_util/time_point/comparison_operators/three_way.cc:
1094         Likewise.
1095         * testsuite/20_util/to_address/1.cc: Likewise.
1096         * testsuite/20_util/to_address/1_neg.cc: Likewise.
1097         * testsuite/20_util/to_address/debug.cc: Likewise.
1098         * testsuite/20_util/to_address/lwg3545.cc: Likewise.
1099         * testsuite/20_util/to_chars/compare.cc: Likewise.
1100         * testsuite/20_util/tuple/comparison_operators/three_way.cc:
1101         Likewise.
1102         * testsuite/20_util/tuple/cons/102270.cc: Likewise.
1103         * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc:
1104         Likewise.
1105         * testsuite/20_util/tuple/constexpr_swap.cc: Likewise.
1106         * testsuite/20_util/type_identity/requirements/alias_decl.cc:
1107         Likewise.
1108         * testsuite/20_util/type_identity/requirements/explicit_instantiation.cc:
1109         Likewise.
1110         * testsuite/20_util/type_identity/requirements/typedefs.cc:
1111         Likewise.
1112         * testsuite/20_util/typeindex/comparison_operators_c++20.cc:
1113         Likewise.
1114         * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc:
1115         Likewise.
1116         * testsuite/20_util/unique_ptr/creation/92878_92947.cc:
1117         Likewise.
1118         * testsuite/20_util/unique_ptr/creation/for_overwrite.cc:
1119         Likewise.
1120         * testsuite/20_util/unique_ptr/creation/for_overwrite__neg.cc:
1121         Likewise.
1122         * testsuite/20_util/unique_ptr/io/lwg2948.cc: Likewise.
1123         * testsuite/20_util/unwrap_reference/1.cc: Likewise.
1124         * testsuite/20_util/unwrap_reference/2.cc: Likewise.
1125         * testsuite/20_util/unwrap_reference/3.cc: Likewise.
1126         * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
1127         * testsuite/20_util/uses_allocator/lwg3527.cc: Likewise.
1128         * testsuite/20_util/uses_allocator/make_obj.cc: Likewise.
1129         * testsuite/20_util/uses_allocator/uninitialized_construct.cc:
1130         Likewise.
1131         * testsuite/20_util/variant/92878_92947.cc: Likewise.
1132         * testsuite/20_util/variant/95915.cc: Likewise.
1133         * testsuite/20_util/variant/constexpr.cc: Likewise.
1134         * testsuite/20_util/variant/relops/three_way.cc: Likewise.
1135         * testsuite/20_util/variant/visit_neg.cc: Likewise.
1136         * testsuite/20_util/variant/visit_r.cc: Likewise.
1137         * testsuite/20_util/weak_ptr/atomic_weak_ptr.cc: Likewise.
1138
1139 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1140
1141         * testsuite/18_support/comparisons/algorithms/fallback.cc:
1142         Remove dg-options -std=gnu++2a.
1143         * testsuite/18_support/comparisons/algorithms/partial_order.cc:
1144         Likewise.
1145         * testsuite/18_support/comparisons/algorithms/strong_order.cc:
1146         Likewise.
1147         * testsuite/18_support/comparisons/algorithms/strong_order_floats.cc:
1148         Likewise.
1149         * testsuite/18_support/comparisons/algorithms/weak_order.cc:
1150         Likewise.
1151         * testsuite/18_support/comparisons/categories/94565.cc:
1152         Likewise.
1153         * testsuite/18_support/comparisons/categories/partialord.cc:
1154         Likewise.
1155         * testsuite/18_support/comparisons/categories/strongord.cc:
1156         Likewise.
1157         * testsuite/18_support/comparisons/categories/weakord.cc:
1158         Likewise.
1159         * testsuite/18_support/comparisons/categories/zero_neg.cc:
1160         Likewise.
1161         * testsuite/18_support/comparisons/common/1.cc: Likewise.
1162         * testsuite/18_support/comparisons/object/93479.cc: Likewise.
1163         * testsuite/18_support/comparisons/object/lwg3530.cc: Likewise.
1164
1165 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1166
1167         * testsuite/29_atomics/atomic/compare_exchange_padding.cc:
1168         Remove dg-options -std=gnu++2a.
1169         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
1170         * testsuite/29_atomics/atomic/lock_free_aliases.cc: Likewise.
1171         * testsuite/29_atomics/atomic/requirements/types_neg.cc:
1172         Likewise.
1173         * testsuite/29_atomics/atomic/wait_notify/1.cc: Likewise.
1174         * testsuite/29_atomics/atomic/wait_notify/100334.cc: Likewise.
1175         * testsuite/29_atomics/atomic/wait_notify/102994.cc: Likewise.
1176         * testsuite/29_atomics/atomic/wait_notify/2.cc: Likewise.
1177         * testsuite/29_atomics/atomic/wait_notify/bool.cc: Likewise.
1178         * testsuite/29_atomics/atomic/wait_notify/generic.cc: Likewise.
1179         * testsuite/29_atomics/atomic/wait_notify/pointers.cc: Likewise.
1180         * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Likewise.
1181         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Likewise.
1182         * testsuite/29_atomics/atomic_flag/test/implicit.cc: Likewise.
1183         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc: Likewise.
1184         * testsuite/29_atomics/atomic_float/1.cc: Likewise.
1185         * testsuite/29_atomics/atomic_float/95282.cc: Likewise.
1186         * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
1187         * testsuite/29_atomics/atomic_float/value_init.cc: Likewise.
1188         * testsuite/29_atomics/atomic_float/wait_notify.cc: Likewise.
1189         * testsuite/29_atomics/atomic_integral/cons/value_init.cc:
1190         Likewise.
1191         * testsuite/29_atomics/atomic_integral/wait_notify.cc: Likewise.
1192         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc:
1193         Likewise.
1194         * testsuite/29_atomics/atomic_ref/deduction.cc: Likewise.
1195         * testsuite/29_atomics/atomic_ref/float.cc: Likewise.
1196         * testsuite/29_atomics/atomic_ref/generic.cc: Likewise.
1197         * testsuite/29_atomics/atomic_ref/integral.cc: Likewise.
1198         * testsuite/29_atomics/atomic_ref/pointer.cc: Likewise.
1199         * testsuite/29_atomics/atomic_ref/requirements.cc: Likewise.
1200         * testsuite/29_atomics/headers/atomic/types_std_c++20.cc:
1201         Likewise.
1202         * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc:
1203         Likewise.
1204         * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc:
1205         Likewise.
1206         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc:
1207         Likewise.
1208
1209 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1210
1211         * testsuite/27_io/basic_filebuf/native_handle/char/1.cc: New test.
1212         * testsuite/27_io/basic_filebuf/native_handle/wchar_t/1.cc: New test.
1213
1214 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1215
1216         * acinclude.m4 (GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES): New
1217         macro.
1218         * config.h.in: Regenerate.
1219         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export new
1220         basic_filebuf members.
1221         * config/io/basic_file_stdio.cc (__basic_file::native_handle):
1222         Define new function.
1223         * config/io/basic_file_stdio.h (__basic_file::native_handle):
1224         Declare new function.
1225         * configure: Regenerate.
1226         * configure.ac: Use GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES.
1227         * include/bits/version.def (fstream_native_handles): New macro.
1228         * include/bits/version.h: Regenerate.
1229         * include/std/fstream (basic_filebuf::native_handle)
1230         (basic_fstream::native_handle, basic_ifstream::native_handle)
1231         (basic_ofstream::native_handle): New functions.
1232         * src/c++11/Makefile.am: Move compilation of basic_file.cc,
1233         locale_init.cc and localename.cc to here.
1234         * src/c++11/Makefile.in: Regenerate.
1235         * src/c++98/locale_init.cc: Moved to...
1236         * src/c++11/locale_init.cc: ...here.
1237         * src/c++98/localename.cc: Moved to...
1238         * src/c++11/localename.cc: ...here.
1239         * src/c++98/Makefile.am: Remove basic_file.cc, locale_init.cc
1240         and localename.cc from here.
1241         * src/c++98/Makefile.in: Regenerate.
1242         * testsuite/27_io/basic_filebuf/native_handle/version.cc: New test.
1243         * testsuite/27_io/basic_fstream/native_handle/char/1.cc: New test.
1244         * testsuite/27_io/basic_fstream/native_handle/wchar_t/1.cc: New test.
1245         * testsuite/27_io/basic_ifstream/native_handle/char/1.cc: New test.
1246         * testsuite/27_io/basic_ifstream/native_handle/wchar_t/1.cc: New test.
1247         * testsuite/27_io/basic_ofstream/native_handle/char/1.cc: New test.
1248         * testsuite/27_io/basic_ofstream/native_handle/wchar_t/1.cc: New test.
1249
1250 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1251
1252         * testsuite/libstdc++-dg/conformance.exp: Add log line when
1253         using testsuite_files.
1254
1255 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1256
1257         * testsuite/20_util/shared_ptr/atomic/3.cc: Simplify dg
1258         directives.
1259         * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
1260         Likewise.
1261         * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc:
1262         Likewise.
1263         * testsuite/20_util/synchronized_pool_resource/allocate.cc:
1264         Likewise.
1265         * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
1266         Likewise.
1267         * testsuite/20_util/synchronized_pool_resource/cons.cc:
1268         Likewise.
1269         * testsuite/20_util/synchronized_pool_resource/cons_single.cc:
1270         Likewise.
1271         * testsuite/20_util/synchronized_pool_resource/is_equal.cc:
1272         Likewise.
1273         * testsuite/20_util/synchronized_pool_resource/multithreaded.cc:
1274         Likewise.
1275         * testsuite/20_util/synchronized_pool_resource/options.cc:
1276         Likewise.
1277         * testsuite/20_util/synchronized_pool_resource/release.cc:
1278         Likewise.
1279         * testsuite/20_util/synchronized_pool_resource/release_single.cc:
1280         Likewise.
1281         * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
1282         Likewise.
1283         * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
1284         Likewise.
1285         * testsuite/30_threads/stop_token/stop_callback/destroy.cc:
1286         Likewise.
1287
1288 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1289
1290         * testsuite/23_containers/span/back_assert_neg.cc: Remove
1291         dg-options and add effective target selector to dg-do. Add
1292         no_pch.
1293         * testsuite/23_containers/span/back_neg.cc: Likewise.
1294         * testsuite/23_containers/span/cons_1_assert_neg.cc: Likewise.
1295         * testsuite/23_containers/span/cons_2_assert_neg.cc: Likewise.
1296         * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1297         * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1298         * testsuite/23_containers/span/first_neg.cc: Likewise.
1299         * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1300         * testsuite/23_containers/span/front_neg.cc: Likewise.
1301         * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1302         * testsuite/23_containers/span/index_op_neg.cc: Likewise.
1303         * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1304         * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1305         * testsuite/23_containers/span/last_neg.cc: Likewise.
1306         * testsuite/23_containers/span/subspan_2_assert_neg.cc:
1307         Likewise.
1308         * testsuite/23_containers/span/subspan_3_assert_neg.cc:
1309         Likewise.
1310         * testsuite/23_containers/span/subspan_4_assert_neg.cc:
1311         Likewise.
1312         * testsuite/23_containers/span/subspan_5_assert_neg.cc:
1313         Likewise.
1314         * testsuite/23_containers/span/subspan_6_assert_neg.cc:
1315         Likewise.
1316         * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1317         * testsuite/23_containers/span/subspan_neg.cc: Likewise.
1318         * testsuite/24_iterators/range_operations/advance_debug_neg.cc:
1319         Likewise.
1320
1321 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1322
1323         * testsuite/18_support/headers/limits/synopsis_cxx23.cc: Remove
1324         dg-options.
1325         * testsuite/18_support/headers/stdfloat/types_std.cc: Likewise.
1326         * testsuite/18_support/type_info/constexpr.cc: Likewise.
1327         * testsuite/19_diagnostics/stacktrace/current.cc: Likewise.
1328         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
1329         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
1330         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Likewise.
1331         * testsuite/19_diagnostics/stacktrace/version.cc: Likewise.
1332         * testsuite/20_util/aligned_storage/deprecated-2b.cc: Likewise.
1333         * testsuite/20_util/aligned_union/deprecated-2b.cc: Likewise.
1334         * testsuite/20_util/bitset/access/constexpr.cc: Likewise.
1335         * testsuite/20_util/bitset/cons/constexpr_c++23.cc: Likewise.
1336         * testsuite/20_util/bitset/count/constexpr.cc: Likewise.
1337         * testsuite/20_util/bitset/ext/constexpr.cc: Likewise.
1338         * testsuite/20_util/bitset/operations/constexpr_c++23.cc:
1339         Likewise.
1340         * testsuite/20_util/bitset/version.cc: Likewise.
1341         * testsuite/20_util/from_chars/8.cc: Likewise.
1342         * testsuite/20_util/from_chars/constexpr.cc: Likewise.
1343         * testsuite/20_util/function/cons/deduction_c++23.cc: Likewise.
1344         * testsuite/20_util/function_objects/invoke/4.cc: Likewise.
1345         * testsuite/20_util/function_objects/invoke/dangling_ref.cc:
1346         Likewise.
1347         * testsuite/20_util/is_scoped_enum/value.cc: Likewise.
1348         * testsuite/20_util/is_scoped_enum/version.cc: Likewise.
1349         * testsuite/20_util/move_only_function/call.cc: Likewise.
1350         * testsuite/20_util/move_only_function/cons.cc: Likewise.
1351         * testsuite/20_util/move_only_function/move.cc: Likewise.
1352         * testsuite/20_util/move_only_function/version.cc: Likewise.
1353         * testsuite/20_util/optional/monadic/and_then.cc: Likewise.
1354         * testsuite/20_util/optional/monadic/or_else.cc: Likewise.
1355         * testsuite/20_util/optional/monadic/or_else_neg.cc: Likewise.
1356         * testsuite/20_util/optional/monadic/pr109242.cc: Likewise.
1357         * testsuite/20_util/optional/monadic/transform.cc: Likewise.
1358         * testsuite/20_util/pair/p2321r2.cc: Likewise.
1359         * testsuite/20_util/reference_from_temporary/value.cc: Likewise.
1360         * testsuite/20_util/reference_from_temporary/value2.cc:
1361         Likewise.
1362         * testsuite/20_util/reference_from_temporary/version.cc:
1363         Likewise.
1364         * testsuite/20_util/to_chars/constexpr.cc: Likewise.
1365         * testsuite/20_util/to_chars/float128_c++23.cc: Likewise.
1366         * testsuite/20_util/to_chars/float16_c++23.cc: Likewise.
1367         * testsuite/20_util/to_chars/version.cc: Likewise.
1368         * testsuite/20_util/to_underlying/1.cc: Likewise.
1369         * testsuite/20_util/to_underlying/version.cc: Likewise.
1370         * testsuite/20_util/tuple/p2321r2.cc: Likewise.
1371         * testsuite/20_util/unique_ptr/assign/constexpr.cc: Likewise.
1372         * testsuite/20_util/unique_ptr/comparison/constexpr.cc:
1373         Likewise.
1374         * testsuite/20_util/unique_ptr/cons/constexpr_c++20.cc:
1375         Likewise.
1376         * testsuite/20_util/unique_ptr/creation/constexpr.cc: Likewise.
1377         * testsuite/20_util/unique_ptr/modifiers/constexpr.cc: Likewise.
1378         * testsuite/20_util/unique_ptr/specialized_algorithms/constexpr.cc: Likewise.
1379         * testsuite/20_util/unreachable/1.cc: Likewise.
1380         * testsuite/20_util/unreachable/version.cc: Likewise.
1381         * testsuite/20_util/uses_allocator/lwg3677.cc: Likewise.
1382         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc: Likewise.
1383         * testsuite/21_strings/basic_string/operations/contains/char.cc:
1384         Likewise.
1385         * testsuite/21_strings/basic_string/operations/contains/nonnull.cc: Likewise.
1386         * testsuite/21_strings/basic_string/operations/contains/wchar_t.cc: Likewise.
1387         * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc: Likewise.
1388         * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc: Likewise.
1389         * testsuite/21_strings/basic_string_view/operations/contains/char.cc: Likewise.
1390         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc: Likewise.
1391         * testsuite/21_strings/basic_string_view/operations/contains/nonnull.cc: Likewise.
1392         * testsuite/21_strings/basic_string_view/operations/contains/wchar_t.cc: Likewise.
1393         * testsuite/23_containers/queue/cons_from_iters.cc: Likewise.
1394         * testsuite/23_containers/stack/cons_from_iters.cc: Likewise.
1395         * testsuite/23_containers/vector/bool/element_access/1.cc:
1396         Likewise.
1397         * testsuite/24_iterators/const_iterator/1.cc: Likewise.
1398         * testsuite/25_algorithms/contains/1.cc: Likewise.
1399         * testsuite/25_algorithms/contains_subrange/1.cc: Likewise.
1400         * testsuite/25_algorithms/find_last/1.cc: Likewise.
1401         * testsuite/25_algorithms/find_last_if/1.cc: Likewise.
1402         * testsuite/25_algorithms/find_last_if_not/1.cc: Likewise.
1403         * testsuite/25_algorithms/fold_left/1.cc: Likewise.
1404         * testsuite/25_algorithms/fold_right/1.cc: Likewise.
1405         * testsuite/25_algorithms/iota/1.cc: Likewise.
1406         * testsuite/26_numerics/bit/bit.byteswap/byteswap.cc: Likewise.
1407         * testsuite/26_numerics/bit/bit.byteswap/version.cc: Likewise.
1408         * testsuite/26_numerics/complex/ext_c++23.cc: Likewise.
1409         * testsuite/26_numerics/headers/cmath/c99_classification_macros_c++23.cc: Likewise.
1410         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc:
1411         Likewise.
1412         * testsuite/26_numerics/headers/cmath/functions_std_c++23.cc:
1413         Likewise.
1414         * testsuite/26_numerics/headers/cmath/nextafter_c++23.cc:
1415         Likewise.
1416         * testsuite/26_numerics/numbers/4.cc: Likewise.
1417         * testsuite/27_io/basic_ostream/inserters_other/char/volatile_ptr.cc: Likewise.
1418         * testsuite/27_io/filesystem/path/native/conv_c++23.cc:
1419         Likewise.
1420         * testsuite/27_io/spanstream/1.cc: Likewise.
1421         * testsuite/27_io/spanstream/2.cc: Likewise.
1422         * testsuite/27_io/spanstream/version.cc: Likewise.
1423         * testsuite/29_atomics/atomic_float/requirements_cxx23.cc:
1424         Likewise.
1425         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
1426         Likewise.
1427         * testsuite/29_atomics/headers/stdatomic.h/version.cc: Likewise.
1428         * testsuite/30_threads/packaged_task/cons/deduction_c++23.cc:
1429         Likewise.
1430         * testsuite/experimental/filesystem/path/native/conv_c++23.cc:
1431         Likewise.
1432         * testsuite/std/ranges/adaptors/adjacent/1.cc: Likewise.
1433         * testsuite/std/ranges/adaptors/adjacent_transform/1.cc:
1434         Likewise.
1435         * testsuite/std/ranges/adaptors/as_const/1.cc: Likewise.
1436         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
1437         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
1438         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
1439         * testsuite/std/ranges/adaptors/enumerate/1.cc: Likewise.
1440         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
1441         * testsuite/std/ranges/adaptors/lwg3715.cc: Likewise.
1442         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
1443         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
1444         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
1445         * testsuite/std/ranges/range_adaptor_closure.cc: Likewise.
1446         * testsuite/std/ranges/repeat/1.cc: Likewise.
1447         * testsuite/std/ranges/version_c++23.cc: Likewise.
1448         * testsuite/std/ranges/zip/1.cc: Likewise.
1449         * testsuite/std/ranges/zip_transform/1.cc: Likewise.
1450
1451 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1452
1453         * testsuite/20_util/expected/assign.cc: Remove dg-options.
1454         * testsuite/20_util/expected/bad.cc: Likewise.
1455         * testsuite/20_util/expected/cons.cc: Likewise.
1456         * testsuite/20_util/expected/equality.cc: Likewise.
1457         * testsuite/20_util/expected/illformed_neg.cc: Likewise.
1458         * testsuite/20_util/expected/lwg3877.cc: Likewise.
1459         * testsuite/20_util/expected/lwg3938.cc: Likewise.
1460         * testsuite/20_util/expected/monadic.cc: Likewise.
1461         * testsuite/20_util/expected/observers.cc: Likewise.
1462         * testsuite/20_util/expected/requirements.cc: Likewise.
1463         * testsuite/20_util/expected/swap.cc: Likewise.
1464         * testsuite/20_util/expected/synopsis.cc: Likewise.
1465         * testsuite/20_util/expected/unexpected.cc: Likewise.
1466         * testsuite/20_util/expected/version.cc: Likewise.
1467
1468 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1469
1470         * testsuite/20_util/duration/arithmetic/overflow_c++20.cc:
1471         Remove dg-options.
1472         * testsuite/20_util/duration/io.cc: Likewise.
1473         * testsuite/std/time/clock/file/io.cc: Likewise.
1474         * testsuite/std/time/clock/file/members.cc: Likewise.
1475         * testsuite/std/time/clock/file/overview.cc: Likewise.
1476         * testsuite/std/time/clock/gps/1.cc: Likewise.
1477         * testsuite/std/time/clock/gps/io.cc: Likewise.
1478         * testsuite/std/time/clock/local/io.cc: Likewise.
1479         * testsuite/std/time/clock/system/io.cc: Likewise.
1480         * testsuite/std/time/clock/tai/1.cc: Likewise.
1481         * testsuite/std/time/clock/tai/io.cc: Likewise.
1482         * testsuite/std/time/clock/utc/1.cc: Likewise.
1483         * testsuite/std/time/clock/utc/io.cc: Likewise.
1484         * testsuite/std/time/clock/utc/leap_second_info.cc: Likewise.
1485         * testsuite/std/time/day/1.cc: Likewise.
1486         * testsuite/std/time/day/io.cc: Likewise.
1487         * testsuite/std/time/exceptions.cc: Likewise.
1488         * testsuite/std/time/format.cc: Likewise.
1489         * testsuite/std/time/hh_mm_ss/1.cc: Likewise.
1490         * testsuite/std/time/hh_mm_ss/109772.cc: Likewise.
1491         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
1492         * testsuite/std/time/is_am/1.cc: Likewise.
1493         * testsuite/std/time/is_pm/1.cc: Likewise.
1494         * testsuite/std/time/make12/1.cc: Likewise.
1495         * testsuite/std/time/make24/1.cc: Likewise.
1496         * testsuite/std/time/month/1.cc: Likewise.
1497         * testsuite/std/time/month/io.cc: Likewise.
1498         * testsuite/std/time/month_day/1.cc: Likewise.
1499         * testsuite/std/time/month_day/io.cc: Likewise.
1500         * testsuite/std/time/month_day_last/1.cc: Likewise.
1501         * testsuite/std/time/month_day_last/io.cc: Likewise.
1502         * testsuite/std/time/month_weekday/1.cc: Likewise.
1503         * testsuite/std/time/month_weekday/io.cc: Likewise.
1504         * testsuite/std/time/month_weekday_last/1.cc: Likewise.
1505         * testsuite/std/time/month_weekday_last/io.cc: Likewise.
1506         * testsuite/std/time/parse.cc: Likewise.
1507         * testsuite/std/time/syn_c++20.cc: Likewise.
1508         * testsuite/std/time/time_zone/get_info_local.cc: Likewise.
1509         * testsuite/std/time/time_zone/get_info_sys.cc: Likewise.
1510         * testsuite/std/time/time_zone/requirements.cc: Likewise.
1511         * testsuite/std/time/traits/is_clock.cc: Likewise.
1512         * testsuite/std/time/tzdb/1.cc: Likewise.
1513         * testsuite/std/time/tzdb/leap_seconds.cc: Likewise.
1514         * testsuite/std/time/tzdb_list/1.cc: Likewise.
1515         * testsuite/std/time/tzdb_list/requirements.cc: Likewise.
1516         * testsuite/std/time/weekday/1.cc: Likewise.
1517         * testsuite/std/time/weekday/io.cc: Likewise.
1518         * testsuite/std/time/weekday_indexed/io.cc: Likewise.
1519         * testsuite/std/time/weekday_last/1.cc: Likewise.
1520         * testsuite/std/time/weekday_last/io.cc: Likewise.
1521         * testsuite/std/time/year/1.cc: Likewise.
1522         * testsuite/std/time/year/2.cc: Likewise.
1523         * testsuite/std/time/year/io.cc: Likewise.
1524         * testsuite/std/time/weekday_indexed/1.cc: Likewise.
1525         * testsuite/std/time/year_month/1.cc: Likewise.
1526         * testsuite/std/time/year_month/2.cc: Likewise.
1527         * testsuite/std/time/year_month/io.cc: Likewise.
1528         * testsuite/std/time/year_month_day/1.cc: Likewise.
1529         * testsuite/std/time/year_month_day/2.cc: Likewise.
1530         * testsuite/std/time/year_month_day/3.cc: Likewise.
1531         * testsuite/std/time/year_month_day/4.cc: Likewise.
1532         * testsuite/std/time/year_month_day/io.cc: Likewise.
1533         * testsuite/std/time/year_month_day_last/1.cc: Likewise.
1534         * testsuite/std/time/year_month_day_last/2.cc: Likewise.
1535         * testsuite/std/time/year_month_day_last/io.cc: Likewise.
1536         * testsuite/std/time/year_month_weekday/1.cc: Likewise.
1537         * testsuite/std/time/year_month_weekday/2.cc: Likewise.
1538         * testsuite/std/time/year_month_weekday/3.cc: Likewise.
1539         * testsuite/std/time/year_month_weekday/io.cc: Likewise.
1540         * testsuite/std/time/year_month_weekday_last/1.cc: Likewise.
1541         * testsuite/std/time/year_month_weekday_last/2.cc: Likewise.
1542         * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
1543         * testsuite/std/time/zoned_time/1.cc: Likewise.
1544         * testsuite/std/time/zoned_time/custom.cc: Likewise.
1545         * testsuite/std/time/zoned_time/deduction.cc: Likewise.
1546         * testsuite/std/time/zoned_time/io.cc: Likewise.
1547         * testsuite/std/time/zoned_time/req_neg.cc: Likewise.
1548         * testsuite/std/time/zoned_time/requirements.cc: Likewise.
1549         * testsuite/std/time/zoned_traits.cc: Likewise.
1550
1551 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1552
1553         * testsuite/std/format/arguments/args.cc: Remove dg-options.
1554         * testsuite/std/format/arguments/lwg3810.cc: Likewise.
1555         * testsuite/std/format/error.cc: Likewise.
1556         * testsuite/std/format/format_string.cc: Likewise.
1557         * testsuite/std/format/formatter/concept.cc: Likewise.
1558         * testsuite/std/format/formatter/ext_float.cc: Likewise.
1559         * testsuite/std/format/formatter/requirements.cc: Likewise.
1560         * testsuite/std/format/functions/107871.cc: Likewise.
1561         * testsuite/std/format/functions/format.cc: Likewise.
1562         * testsuite/std/format/functions/format_to.cc: Likewise.
1563         * testsuite/std/format/functions/format_to_n.cc: Likewise.
1564         * testsuite/std/format/functions/size.cc: Likewise.
1565         * testsuite/std/format/functions/vformat_to.cc: Likewise.
1566         * testsuite/std/format/parse_ctx.cc: Likewise.
1567         * testsuite/std/format/string.cc: Likewise.
1568         * testsuite/std/format/string_neg.cc: Likewise.
1569         * testsuite/std/format/functions/format_c++23.cc: Removed.
1570
1571 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1572
1573         * testsuite/20_util/function_objects/range.cmp/equal_to.cc:
1574         Remove dg-options.
1575         * testsuite/20_util/function_objects/range.cmp/greater.cc:
1576         Likewise.
1577         * testsuite/20_util/function_objects/range.cmp/greater_equal.cc:
1578         Likewise.
1579         * testsuite/20_util/function_objects/range.cmp/less.cc:
1580         Likewise.
1581         * testsuite/20_util/function_objects/range.cmp/less_equal.cc:
1582         Likewise.
1583         * testsuite/20_util/function_objects/range.cmp/lwg3530.cc:
1584         Likewise.
1585         * testsuite/20_util/function_objects/range.cmp/not_equal_to.cc:
1586         Likewise.
1587         * testsuite/20_util/specialized_algorithms/construct_at/1.cc:
1588         Likewise.
1589         * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
1590         Likewise.
1591         * testsuite/20_util/specialized_algorithms/construct_at/95788.cc:
1592         Likewise.
1593         * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1594         Likewise.
1595         * testsuite/20_util/specialized_algorithms/uninitialized_copy/constrained.cc:
1596         Likewise.
1597         * testsuite/20_util/specialized_algorithms/uninitialized_default_construct/constrained.cc:
1598         Likewise.
1599         * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
1600         Likewise.
1601         * testsuite/20_util/specialized_algorithms/uninitialized_fill/constrained.cc:
1602         Likewise.
1603         * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
1604         Likewise.
1605         * testsuite/20_util/specialized_algorithms/uninitialized_move/constrained.cc:
1606         Likewise.
1607         * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/constrained.cc:
1608         Likewise.
1609         * testsuite/25_algorithms/adjacent_find/constexpr.cc: Likewise.
1610         * testsuite/25_algorithms/adjacent_find/constrained.cc:
1611         Likewise.
1612         * testsuite/25_algorithms/all_of/constexpr.cc: Likewise.
1613         * testsuite/25_algorithms/all_of/constrained.cc: Likewise.
1614         * testsuite/25_algorithms/any_of/constexpr.cc: Likewise.
1615         * testsuite/25_algorithms/any_of/constrained.cc: Likewise.
1616         * testsuite/25_algorithms/binary_search/constexpr.cc: Likewise.
1617         * testsuite/25_algorithms/binary_search/constrained.cc:
1618         Likewise.
1619         * testsuite/25_algorithms/clamp/constrained.cc: Likewise.
1620         * testsuite/25_algorithms/constexpr_macro.cc: Likewise.
1621         * testsuite/25_algorithms/copy/95578.cc: Likewise.
1622         * testsuite/25_algorithms/copy/constexpr.cc: Likewise.
1623         * testsuite/25_algorithms/copy/constrained.cc: Likewise.
1624         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Likewise.
1625         * testsuite/25_algorithms/copy_backward/95578.cc: Likewise.
1626         * testsuite/25_algorithms/copy_backward/constexpr.cc: Likewise.
1627         * testsuite/25_algorithms/copy_backward/constrained.cc:
1628         Likewise.
1629         * testsuite/25_algorithms/copy_backward/debug/constexpr_neg.cc:
1630         Likewise.
1631         * testsuite/25_algorithms/copy_if/constexpr.cc: Likewise.
1632         * testsuite/25_algorithms/copy_if/constrained.cc: Likewise.
1633         * testsuite/25_algorithms/copy_n/constexpr.cc: Likewise.
1634         * testsuite/25_algorithms/copy_n/constrained.cc: Likewise.
1635         * testsuite/25_algorithms/count/constexpr.cc: Likewise.
1636         * testsuite/25_algorithms/count/constrained.cc: Likewise.
1637         * testsuite/25_algorithms/count_if/constexpr.cc: Likewise.
1638         * testsuite/25_algorithms/count_if/constrained.cc: Likewise.
1639         * testsuite/25_algorithms/cpp_lib_constexpr.cc: Likewise.
1640         * testsuite/25_algorithms/equal/95578.cc: Likewise.
1641         * testsuite/25_algorithms/equal/constexpr.cc: Likewise.
1642         * testsuite/25_algorithms/equal/constexpr_neg.cc: Likewise.
1643         * testsuite/25_algorithms/equal/constrained.cc: Likewise.
1644         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
1645         Likewise.
1646         * testsuite/25_algorithms/equal_range/constexpr.cc: Likewise.
1647         * testsuite/25_algorithms/equal_range/constrained.cc: Likewise.
1648         * testsuite/25_algorithms/fill/94017.cc: Likewise.
1649         * testsuite/25_algorithms/fill/constexpr.cc: Likewise.
1650         * testsuite/25_algorithms/fill/constrained.cc: Likewise.
1651         * testsuite/25_algorithms/fill_n/94017.cc: Likewise.
1652         * testsuite/25_algorithms/fill_n/constexpr.cc: Likewise.
1653         * testsuite/25_algorithms/fill_n/constrained.cc: Likewise.
1654         * testsuite/25_algorithms/find/constexpr.cc: Likewise.
1655         * testsuite/25_algorithms/find/constrained.cc: Likewise.
1656         * testsuite/25_algorithms/find_end/constexpr.cc: Likewise.
1657         * testsuite/25_algorithms/find_end/constrained.cc: Likewise.
1658         * testsuite/25_algorithms/find_first_of/constexpr.cc: Likewise.
1659         * testsuite/25_algorithms/find_first_of/constrained.cc:
1660         Likewise.
1661         * testsuite/25_algorithms/find_if/constexpr.cc: Likewise.
1662         * testsuite/25_algorithms/find_if/constrained.cc: Likewise.
1663         * testsuite/25_algorithms/find_if_not/constexpr.cc: Likewise.
1664         * testsuite/25_algorithms/find_if_not/constrained.cc: Likewise.
1665         * testsuite/25_algorithms/for_each/constexpr.cc: Likewise.
1666         * testsuite/25_algorithms/for_each/constrained.cc: Likewise.
1667         * testsuite/25_algorithms/generate/constexpr.cc: Likewise.
1668         * testsuite/25_algorithms/generate/constrained.cc: Likewise.
1669         * testsuite/25_algorithms/generate_n/constexpr.cc: Likewise.
1670         * testsuite/25_algorithms/generate_n/constrained.cc: Likewise.
1671         * testsuite/25_algorithms/heap/constrained.cc: Likewise.
1672         * testsuite/25_algorithms/includes/constrained.cc: Likewise.
1673         * testsuite/25_algorithms/inplace_merge/constrained.cc:
1674         Likewise.
1675         * testsuite/25_algorithms/is_heap/constexpr.cc: Likewise.
1676         * testsuite/25_algorithms/is_heap_until/constexpr.cc: Likewise.
1677         * testsuite/25_algorithms/is_partitioned/constexpr.cc: Likewise.
1678         * testsuite/25_algorithms/is_partitioned/constrained.cc:
1679         Likewise.
1680         * testsuite/25_algorithms/is_permutation/constexpr.cc: Likewise.
1681         * testsuite/25_algorithms/is_permutation/constrained.cc:
1682         Likewise.
1683         * testsuite/25_algorithms/is_sorted/constexpr.cc: Likewise.
1684         * testsuite/25_algorithms/is_sorted/constrained.cc: Likewise.
1685         * testsuite/25_algorithms/is_sorted_until/constexpr.cc:
1686         Likewise.
1687         * testsuite/25_algorithms/is_sorted_until/constrained.cc:
1688         Likewise.
1689         * testsuite/25_algorithms/iter_swap/constexpr.cc: Likewise.
1690         * testsuite/25_algorithms/lexicographical_compare/93972.cc:
1691         Likewise.
1692         * testsuite/25_algorithms/lexicographical_compare/95578.cc:
1693         Likewise.
1694         * testsuite/25_algorithms/lexicographical_compare/constexpr.cc:
1695         Likewise.
1696         * testsuite/25_algorithms/lexicographical_compare/constrained.cc:
1697         Likewise.
1698         * testsuite/25_algorithms/lexicographical_compare_three_way/1.cc:
1699         Likewise.
1700         * testsuite/25_algorithms/lexicographical_compare_three_way/constexpr.cc:
1701         Likewise.
1702         * testsuite/25_algorithms/lower_bound/constexpr.cc: Likewise.
1703         * testsuite/25_algorithms/lower_bound/constrained.cc: Likewise.
1704         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_neg.cc:
1705         Likewise.
1706         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_pred_neg.cc:
1707         Likewise.
1708         * testsuite/25_algorithms/lower_bound/debug/constexpr_valid_range_neg.cc:
1709         Likewise.
1710         * testsuite/25_algorithms/make_heap/constexpr.cc: Likewise.
1711         * testsuite/25_algorithms/max/constrained.cc: Likewise.
1712         * testsuite/25_algorithms/max_element/constrained.cc: Likewise.
1713         * testsuite/25_algorithms/merge/constexpr.cc: Likewise.
1714         * testsuite/25_algorithms/merge/constrained.cc: Likewise.
1715         * testsuite/25_algorithms/min/constrained.cc: Likewise.
1716         * testsuite/25_algorithms/min_element/constrained.cc: Likewise.
1717         * testsuite/25_algorithms/minmax/constrained.cc: Likewise.
1718         * testsuite/25_algorithms/minmax_element/constrained.cc:
1719         Likewise.
1720         * testsuite/25_algorithms/mismatch/constexpr.cc: Likewise.
1721         * testsuite/25_algorithms/mismatch/constrained.cc: Likewise.
1722         * testsuite/25_algorithms/move/93872.cc: Likewise.
1723         * testsuite/25_algorithms/move/95578.cc: Likewise.
1724         * testsuite/25_algorithms/move/constexpr.cc: Likewise.
1725         * testsuite/25_algorithms/move/constrained.cc: Likewise.
1726         * testsuite/25_algorithms/move_backward/93872.cc: Likewise.
1727         * testsuite/25_algorithms/move_backward/95578.cc: Likewise.
1728         * testsuite/25_algorithms/move_backward/constrained.cc:
1729         Likewise.
1730         * testsuite/25_algorithms/next_permutation/constexpr.cc:
1731         Likewise.
1732         * testsuite/25_algorithms/next_permutation/constrained.cc:
1733         Likewise.
1734         * testsuite/25_algorithms/none_of/constexpr.cc: Likewise.
1735         * testsuite/25_algorithms/none_of/constrained.cc: Likewise.
1736         * testsuite/25_algorithms/nth_element/constexpr.cc: Likewise.
1737         * testsuite/25_algorithms/nth_element/constrained.cc: Likewise.
1738         * testsuite/25_algorithms/partial_sort/constexpr.cc: Likewise.
1739         * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
1740         * testsuite/25_algorithms/partial_sort_copy/constexpr.cc:
1741         Likewise.
1742         * testsuite/25_algorithms/partial_sort_copy/constrained.cc:
1743         Likewise.
1744         * testsuite/25_algorithms/partition/constexpr.cc: Likewise.
1745         * testsuite/25_algorithms/partition/constrained.cc: Likewise.
1746         * testsuite/25_algorithms/partition_copy/constexpr.cc: Likewise.
1747         * testsuite/25_algorithms/partition_copy/constrained.cc:
1748         Likewise.
1749         * testsuite/25_algorithms/partition_point/constexpr.cc:
1750         Likewise.
1751         * testsuite/25_algorithms/partition_point/constrained.cc:
1752         Likewise.
1753         * testsuite/25_algorithms/pop_heap/constexpr.cc: Likewise.
1754         * testsuite/25_algorithms/prev_permutation/constexpr.cc:
1755         Likewise.
1756         * testsuite/25_algorithms/prev_permutation/constrained.cc:
1757         Likewise.
1758         * testsuite/25_algorithms/push_heap/constexpr.cc: Likewise.
1759         * testsuite/25_algorithms/remove/constexpr.cc: Likewise.
1760         * testsuite/25_algorithms/remove/constrained.cc: Likewise.
1761         * testsuite/25_algorithms/remove_copy/constexpr.cc: Likewise.
1762         * testsuite/25_algorithms/remove_copy/constrained.cc: Likewise.
1763         * testsuite/25_algorithms/remove_copy_if/constexpr.cc: Likewise.
1764         * testsuite/25_algorithms/remove_copy_if/constrained.cc:
1765         Likewise.
1766         * testsuite/25_algorithms/remove_if/constexpr.cc: Likewise.
1767         * testsuite/25_algorithms/remove_if/constrained.cc: Likewise.
1768         * testsuite/25_algorithms/replace/constrained.cc: Likewise.
1769         * testsuite/25_algorithms/replace_copy/constexpr.cc: Likewise.
1770         * testsuite/25_algorithms/replace_copy/constrained.cc: Likewise.
1771         * testsuite/25_algorithms/replace_copy_if/constexpr.cc:
1772         Likewise.
1773         * testsuite/25_algorithms/replace_copy_if/constrained.cc:
1774         Likewise.
1775         * testsuite/25_algorithms/replace_if/constexpr.cc: Likewise.
1776         * testsuite/25_algorithms/replace_if/constrained.cc: Likewise.
1777         * testsuite/25_algorithms/reverse/constexpr.cc: Likewise.
1778         * testsuite/25_algorithms/reverse/constrained.cc: Likewise.
1779         * testsuite/25_algorithms/reverse_copy/constexpr.cc: Likewise.
1780         * testsuite/25_algorithms/reverse_copy/constrained.cc: Likewise.
1781         * testsuite/25_algorithms/rotate/constexpr.cc: Likewise.
1782         * testsuite/25_algorithms/rotate/constrained.cc: Likewise.
1783         * testsuite/25_algorithms/rotate_copy/constexpr.cc: Likewise.
1784         * testsuite/25_algorithms/rotate_copy/constrained.cc: Likewise.
1785         * testsuite/25_algorithms/sample/constrained.cc: Likewise.
1786         * testsuite/25_algorithms/search/constexpr.cc: Likewise.
1787         * testsuite/25_algorithms/search/constrained.cc: Likewise.
1788         * testsuite/25_algorithms/search_n/97828.cc: Likewise.
1789         * testsuite/25_algorithms/search_n/constexpr.cc: Likewise.
1790         * testsuite/25_algorithms/search_n/constrained.cc: Likewise.
1791         * testsuite/25_algorithms/set_difference/constexpr.cc: Likewise.
1792         * testsuite/25_algorithms/set_difference/constrained.cc:
1793         Likewise.
1794         * testsuite/25_algorithms/set_intersection/constexpr.cc:
1795         Likewise.
1796         * testsuite/25_algorithms/set_intersection/constrained.cc:
1797         Likewise.
1798         * testsuite/25_algorithms/set_symmetric_difference/constexpr.cc:
1799         Likewise.
1800         * testsuite/25_algorithms/set_symmetric_difference/constrained.cc:
1801         Likewise.
1802         * testsuite/25_algorithms/set_union/constexpr.cc: Likewise.
1803         * testsuite/25_algorithms/set_union/constrained.cc: Likewise.
1804         * testsuite/25_algorithms/shift_left/1.cc: Likewise.
1805         * testsuite/25_algorithms/shift_right/1.cc: Likewise.
1806         * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
1807         * testsuite/25_algorithms/sort/constexpr.cc: Likewise.
1808         * testsuite/25_algorithms/sort/constrained.cc: Likewise.
1809         * testsuite/25_algorithms/sort_heap/constexpr.cc: Likewise.
1810         * testsuite/25_algorithms/stable_partition/constrained.cc:
1811         Likewise.
1812         * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
1813         * testsuite/25_algorithms/swap/constexpr.cc: Likewise.
1814         * testsuite/25_algorithms/swap_ranges/constexpr.cc: Likewise.
1815         * testsuite/25_algorithms/swap_ranges/constrained.cc: Likewise.
1816         * testsuite/25_algorithms/transform/constexpr.cc: Likewise.
1817         * testsuite/25_algorithms/transform/constrained.cc: Likewise.
1818         * testsuite/25_algorithms/unique/constexpr.cc: Likewise.
1819         * testsuite/25_algorithms/unique/constrained.cc: Likewise.
1820         * testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise.
1821         * testsuite/25_algorithms/unique_copy/constrained.cc: Likewise.
1822         * testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise.
1823         * testsuite/25_algorithms/upper_bound/constrained.cc: Likewise.
1824         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_neg.cc:
1825         Likewise.
1826         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_pred_neg.cc:
1827         Likewise.
1828         * testsuite/25_algorithms/upper_bound/debug/constexpr_valid_range_neg.cc:
1829         Likewise.
1830
1831 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1832
1833         * testsuite/std/concepts/1.cc: Remove dg-options.
1834         * testsuite/std/concepts/2.cc: Likewise.
1835         * testsuite/std/concepts/concepts.callable/invocable.cc:
1836         Likewise.
1837         * testsuite/std/concepts/concepts.callable/regular_invocable.cc:
1838         Likewise.
1839         * testsuite/std/concepts/concepts.callable/relation.cc:
1840         Likewise.
1841         * testsuite/std/concepts/concepts.callable/strictweakorder.cc:
1842         Likewise.
1843         * testsuite/std/concepts/concepts.lang/concept.arithmetic/floating_point.cc: Likewise.
1844         * testsuite/std/concepts/concepts.lang/concept.arithmetic/integral.cc: Likewise.
1845         * testsuite/std/concepts/concepts.lang/concept.arithmetic/signed_integral.cc: Likewise.
1846         * testsuite/std/concepts/concepts.lang/concept.arithmetic/unsigned_integral.cc: Likewise.
1847         * testsuite/std/concepts/concepts.lang/concept.assignable/1.cc:
1848         Likewise.
1849         * testsuite/std/concepts/concepts.lang/concept.common/1.cc:
1850         Likewise.
1851         * testsuite/std/concepts/concepts.lang/concept.commonref/1.cc:
1852         Likewise.
1853         * testsuite/std/concepts/concepts.lang/concept.constructible/1.cc: Likewise.
1854         * testsuite/std/concepts/concepts.lang/concept.convertible/1.cc:
1855         Likewise.
1856         * testsuite/std/concepts/concepts.lang/concept.copyconstructible/1.cc: Likewise.
1857         * testsuite/std/concepts/concepts.lang/concept.defaultinitializable/1.cc: Likewise.
1858         * testsuite/std/concepts/concepts.lang/concept.defaultinitializable/lwg3149.cc: Likewise.
1859         * testsuite/std/concepts/concepts.lang/concept.derived/1.cc:
1860         Likewise.
1861         * testsuite/std/concepts/concepts.lang/concept.destructible/1.cc: Likewise.
1862         * testsuite/std/concepts/concepts.lang/concept.moveconstructible/1.cc: Likewise.
1863         * testsuite/std/concepts/concepts.lang/concept.same/1.cc:
1864         Likewise.
1865         * testsuite/std/concepts/concepts.lang/concept.swappable/swap.cc: Likewise.
1866         * testsuite/std/concepts/concepts.lang/concept.swappable/swappable.cc: Likewise.
1867         * testsuite/std/concepts/concepts.lang/concept.swappable/swappable_with.cc: Likewise.
1868         * testsuite/std/concepts/concepts.object/copyable.cc: Likewise.
1869         * testsuite/std/concepts/concepts.object/movable.cc: Likewise.
1870         * testsuite/std/concepts/concepts.object/regular.cc: Likewise.
1871         * testsuite/std/concepts/concepts.object/semiregular.cc:
1872         Likewise.
1873         * testsuite/std/ranges/97600.cc: Likewise.
1874         * testsuite/std/ranges/access/101782.cc: Likewise.
1875         * testsuite/std/ranges/access/begin.cc: Likewise.
1876         * testsuite/std/ranges/access/begin_neg.cc: Likewise.
1877         * testsuite/std/ranges/access/cbegin.cc: Likewise.
1878         * testsuite/std/ranges/access/cdata.cc: Likewise.
1879         * testsuite/std/ranges/access/cend.cc: Likewise.
1880         * testsuite/std/ranges/access/crbegin.cc: Likewise.
1881         * testsuite/std/ranges/access/crend.cc: Likewise.
1882         * testsuite/std/ranges/access/data.cc: Likewise.
1883         * testsuite/std/ranges/access/empty.cc: Likewise.
1884         * testsuite/std/ranges/access/end.cc: Likewise.
1885         * testsuite/std/ranges/access/end_neg.cc: Likewise.
1886         * testsuite/std/ranges/access/lwg3467.cc: Likewise.
1887         * testsuite/std/ranges/access/p2602.cc: Likewise.
1888         * testsuite/std/ranges/access/rbegin.cc: Likewise.
1889         * testsuite/std/ranges/access/rend.cc: Likewise.
1890         * testsuite/std/ranges/access/size.cc: Likewise.
1891         * testsuite/std/ranges/access/size_neg.cc: Likewise.
1892         * testsuite/std/ranges/access/ssize.cc: Likewise.
1893         * testsuite/std/ranges/adaptors/100479.cc: Likewise.
1894         * testsuite/std/ranges/adaptors/100577.cc: Likewise.
1895         * testsuite/std/ranges/adaptors/93978.cc: Likewise.
1896         * testsuite/std/ranges/adaptors/95322.cc: Likewise.
1897         * testsuite/std/ranges/adaptors/99433.cc: Likewise.
1898         * testsuite/std/ranges/adaptors/all.cc: Likewise.
1899         * testsuite/std/ranges/adaptors/common.cc: Likewise.
1900         * testsuite/std/ranges/adaptors/conditionally_borrowed.cc:
1901         Likewise.
1902         * testsuite/std/ranges/adaptors/counted.cc: Likewise.
1903         * testsuite/std/ranges/adaptors/detail/copyable_box.cc:
1904         Likewise.
1905         * testsuite/std/ranges/adaptors/drop.cc: Likewise.
1906         * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
1907         * testsuite/std/ranges/adaptors/elements.cc: Likewise.
1908         * testsuite/std/ranges/adaptors/filter.cc: Likewise.
1909         * testsuite/std/ranges/adaptors/join.cc: Likewise.
1910         * testsuite/std/ranges/adaptors/lazy_split.cc: Likewise.
1911         * testsuite/std/ranges/adaptors/lazy_split_neg.cc: Likewise.
1912         * testsuite/std/ranges/adaptors/lwg3286.cc: Likewise.
1913         * testsuite/std/ranges/adaptors/lwg3313_neg.cc: Likewise.
1914         * testsuite/std/ranges/adaptors/lwg3325_neg.cc: Likewise.
1915         * testsuite/std/ranges/adaptors/lwg3406.cc: Likewise.
1916         * testsuite/std/ranges/adaptors/p1739.cc: Likewise.
1917         * testsuite/std/ranges/adaptors/p2281.cc: Likewise.
1918         * testsuite/std/ranges/adaptors/p2770r0.cc: Likewise.
1919         * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
1920         * testsuite/std/ranges/adaptors/sizeof.cc: Likewise.
1921         * testsuite/std/ranges/adaptors/split.cc: Likewise.
1922         * testsuite/std/ranges/adaptors/take.cc: Likewise.
1923         * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
1924         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
1925         * testsuite/std/ranges/empty_view.cc: Likewise.
1926         * testsuite/std/ranges/headers/ranges/synopsis.cc: Likewise.
1927         * testsuite/std/ranges/iota/difference_type.cc: Likewise.
1928         * testsuite/std/ranges/iota/iota_view.cc: Likewise.
1929         * testsuite/std/ranges/iota/iterator.cc: Likewise.
1930         * testsuite/std/ranges/iota/lwg3292_neg.cc: Likewise.
1931         * testsuite/std/ranges/iota/max_size_type.cc: Likewise.
1932         * testsuite/std/ranges/istream_view.cc: Likewise.
1933         * testsuite/std/ranges/p2259.cc: Likewise.
1934         * testsuite/std/ranges/p2325.cc: Likewise.
1935         * testsuite/std/ranges/p2367.cc: Likewise.
1936         * testsuite/std/ranges/range.cc: Likewise.
1937         * testsuite/std/ranges/refinements.cc: Likewise.
1938         * testsuite/std/ranges/safe_range.cc: Likewise.
1939         * testsuite/std/ranges/safe_range_types.cc: Likewise.
1940         * testsuite/std/ranges/single_view.cc: Likewise.
1941         * testsuite/std/ranges/sized.cc: Likewise.
1942         * testsuite/std/ranges/subrange/1.cc: Likewise.
1943         * testsuite/std/ranges/subrange/97512.cc: Likewise.
1944         * testsuite/std/ranges/subrange/constexpr.cc: Likewise.
1945         * testsuite/std/ranges/subrange/lwg3282_neg.cc: Likewise.
1946         * testsuite/std/ranges/subrange/lwg3286.cc: Likewise.
1947         * testsuite/std/ranges/subrange/lwg3433.cc: Likewise.
1948         * testsuite/std/ranges/subrange/sizeof.cc: Likewise.
1949         * testsuite/std/ranges/subrange/tuple_like.cc: Likewise.
1950         * testsuite/std/ranges/view.cc: Likewise.
1951
1952 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1953
1954         * testsuite/21_strings/headers/cuchar/functions_std_cxx20.cc:
1955         Remove dg-options.
1956         * testsuite/23_containers/span/contiguous_range_neg.cc:
1957         Likewise.
1958         * testsuite/23_containers/span/everything.cc: Likewise.
1959
1960 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1961
1962         * testsuite/24_iterators/reverse_iterator/100639.cc: Remove
1963         dg-options and add dg-add-options strict_std.
1964         * testsuite/std/ranges/iota/93267.cc: Likewise.
1965         * testsuite/std/ranges/iota/96042.cc: Likewise.
1966         * testsuite/std/ranges/iota/size.cc: Likewise.
1967         * testsuite/std/ranges/subrange/96042.cc: Likewise.
1968
1969 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1970
1971         * testsuite/tr1/5_numerical_facilities/special_functions/07_conf_hyperg/compile_cxx17.cc:
1972         Replace dg-options -std=c++17 with dg-add-options strict_std.
1973         * testsuite/tr1/5_numerical_facilities/special_functions/17_hyperg/compile_cxx17.cc:
1974         Likewise.
1975
1976 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1977
1978         * testsuite/23_containers/deque/48101-2_neg.cc: Replace
1979         dg-options with target selector.
1980         * testsuite/23_containers/forward_list/48101-2_neg.cc: Likewise.
1981         * testsuite/23_containers/list/48101-2_neg.cc: Likewise.
1982         * testsuite/23_containers/map/48101-2_neg.cc: Likewise.
1983         * testsuite/23_containers/map/48101_neg.cc: Likewise.
1984         * testsuite/23_containers/multimap/48101-2_neg.cc: Likewise.
1985         * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
1986         * testsuite/23_containers/multiset/48101-2_neg.cc: Likewise.
1987         * testsuite/23_containers/set/48101-2_neg.cc: Likewise.
1988         * testsuite/23_containers/unordered_map/48101-2_neg.cc:
1989         Likewise.
1990         * testsuite/23_containers/unordered_multimap/48101-2_neg.cc:
1991         Likewise.
1992         * testsuite/23_containers/unordered_multiset/48101-2_neg.cc:
1993         Likewise.
1994         * testsuite/23_containers/unordered_set/48101-2_neg.cc:
1995         Likewise.
1996         * testsuite/23_containers/vector/48101-2_neg.cc: Likewise.
1997
1998 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1999
2000         * doc/xml/manual/test.xml: Update documentation on running and
2001         writing tests.
2002         * doc/html/manual/test.html: Regenerate.
2003         * testsuite/Makefile.am: Add v3-use-std-list to site.tmp
2004         * testsuite/Makefile.in: Regenerate.
2005         * testsuite/lib/dg-options.exp (add_options_for_strict_std): New
2006         proc.
2007         * testsuite/lib/libstdc++.exp (search_for): New utility proc.
2008         (v3-dg-runtest): New proc to replace dg-runtest.
2009         * testsuite/libstdc++-dg/conformance.exp: Use v3-dg-runtest.
2010
2011 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2012
2013         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc:
2014         Fix test to work for C++23 and C++26 too.
2015
2016 2023-09-15  Patrick Palka  <ppalka@redhat.com>
2017
2018         * include/std/bit: Include <concepts>.
2019         (byteswap): Use a type-constraint instead of enable_if_t
2020         inside the return type, and use std::integral.
2021         (_If_is_unsigned_integer): Replace with ...
2022         (__unsigned_integer): ... this.
2023         (rotl): Use a type-constraint instead of enable_if_t inside
2024         the return type.
2025         (countl_zero): Likewise.
2026         (countl_one): Likewise.
2027         (countr_zero): Likewise.
2028         (countr_one): Likewise.
2029         (popcount): Likewise.
2030         (has_single_bit): Likewise.
2031         (bit_ceil): Likewise.
2032         (bit_floor): Likewise.
2033         (bit_width): Likewise.
2034
2035 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2036
2037         * include/std/variant (variant): Remove derivation from
2038         _Enable_default_constructor base class.
2039         (variant::variant()): Constrain.
2040         * testsuite/20_util/variant/default_ctor.cc: New test.
2041
2042 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2043
2044         PR libstdc++/111172
2045         * include/std/variant (get<T>): Remove !is_void static
2046         assertions.
2047
2048 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2049
2050         * include/bits/version.def (to_chars): Define new value for
2051         C++26.
2052         * include/bits/version.h: Regenerate.
2053         * include/std/charconv (to_chars_result::operator bool): New
2054         function.
2055         (from_chars_result::operator bool): New function.
2056         * testsuite/20_util/to_chars/version.cc: Update expected value.
2057         * testsuite/20_util/from_chars/result.cc: New test.
2058         * testsuite/20_util/to_chars/result.cc: New test.
2059
2060 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2061
2062         PR c++/111357
2063         * testsuite/20_util/integer_sequence/pr111357.cc: New test.
2064
2065 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2066
2067         * testsuite/27_io/basic_filebuf/seekoff/char/1-io.cc: Use
2068         dg-additional-files. Remove @require@ and @diff@ comments.
2069         * testsuite/27_io/basic_filebuf/seekoff/char/2-io.cc: Likewise.
2070         * testsuite/27_io/basic_filebuf/seekpos/char/1-io.cc: Likewise.
2071         * testsuite/27_io/basic_filebuf/seekpos/char/2-io.cc: Likewise.
2072         * testsuite/lib/dg-options.exp (v3_additional_files): New
2073         global variable.
2074         (dg-additional-files): New proc.
2075         * testsuite/lib/libstdc++.exp (v3_target_compile): Copy
2076         additional files to test directory.
2077
2078 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2079
2080         * include/experimental/io_context (io_context) [!_GLIBCXX_HAS_GTHREADS]:
2081         Use a plain integer for _M_work_count for single-threaded
2082         targets.
2083         * include/experimental/memory_resource (__get_default_resource)
2084         [!_GLIBCXX_HAS_GTHREADS]: Use unsynchronized type for
2085         single-threaded targets.
2086         * src/c++17/default_resource.h: Adjust preprocessor conditions
2087         to match memory_resource.cc.
2088         * src/c++17/memory_resource.cc [!_GLIBCXX_HAS_GTHREADS]
2089         (atomic_mem_res): Use unsynchronized type for single-threaded
2090         targets.
2091
2092 2023-09-14  Christophe Lyon  <christophe.lyon@linaro.org>
2093
2094         * testsuite/29_atomics/atomic/compare_exchange_padding.cc: Likewise.
2095         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
2096         * testsuite/29_atomics/atomic_float/value_init.cc: Likewise.
2097         * testsuite/29_atomics/atomic_integral/cons/value_init.cc: Likewise.
2098         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc: Likewise.
2099         * testsuite/29_atomics/atomic_ref/generic.cc: Likewise.
2100         * testsuite/29_atomics/atomic_ref/integral.cc: Likewise.
2101         * testsuite/29_atomics/atomic_ref/pointer.cc: Likewise.
2102
2103 2023-09-14  François Dumont  <fdumont@gcc.gnu.org>
2104
2105         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Add
2106         { dg-require-normal-namespace "" }.
2107
2108 2023-09-13  François Dumont  <fdumont@gcc.gnu.org>
2109
2110         * include/std/format (std::__format::_Arg_store): Explicit version
2111         namespace on make_format_args friend declaration.
2112
2113 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2114
2115         PR libstdc++/111327
2116         * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Also define
2117         a deleted fallback operator() overload.  Constrain both the
2118         enabled and deleted overloads accordingly.
2119         * testsuite/20_util/function_objects/not_fn/111327.cc: New test.
2120
2121 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2122
2123         PR libstdc++/111327
2124         * include/std/functional (_Bind_front::operator()): Add deleted
2125         fallback overloads for each const/ref qualifier pair.  Give the
2126         enabled overloads dummy constraints to make each one more
2127         specialized than the corresponding deleted overload.
2128         * testsuite/20_util/function_objects/bind_front/111327.cc: New test.
2129
2130 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2131
2132         * include/std/functional (_Bind_front0): Remove.
2133         (_Bind_front_t): Adjust.
2134
2135 2023-09-12  Jonathan Wakely  <jwakely@redhat.com>
2136
2137         * python/libstdcxx/v6/printers.py: Reformat.
2138         * python/libstdcxx/v6/xmethods.py: Likewise.
2139
2140 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2141
2142         * src/c++11/debug.cc (acquire_sequence_ptr_for_lock): New
2143         function.
2144         (reset_sequence_ptr): New function.
2145         (_Safe_iterator_base::_M_detach)
2146         (_Safe_local_iterator_base::_M_detach): Replace bare atomic_load
2147         with acquire_sequence_ptr_for_lock.
2148         (_Safe_iterator_base::_M_reset): Replace bare atomic_store with
2149         reset_sequence_ptr.
2150
2151 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2152
2153         * src/c++11/Makefile.am: Add new file.
2154         * src/c++11/Makefile.in: Regenerate.
2155         * src/c++11/debug.cc (__glibcxx_assert_fail): Move to ...
2156         * src/c++11/assert_fail.cc: New file.
2157
2158 2023-09-11  Ken Matsui  <kmatsui@gcc.gnu.org>
2159
2160         * include/bits/c++config (_GLIBCXX_HAS_BUILTIN): Do not undef.
2161         (_GLIBCXX_USE_BUILTIN_TRAIT): Define.
2162
2163 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2164
2165         * include/bits/version.def (__cpp_lib_formatters): Define.
2166         * include/bits/version.h: Regenerate.
2167         * include/std/stacktrace (formatter<stacktrace_entry>)
2168         (formatter<basic_stacktrace<Alloc>>): Define.
2169         * include/std/thread (formatter<thread::id, charT>): Define.
2170         * testsuite/19_diagnostics/stacktrace/output.cc: New test.
2171         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Add
2172         std::formatter specializations.
2173         * testsuite/19_diagnostics/stacktrace/version.cc: Check
2174         __cpp_lib_formatters macro.
2175         * testsuite/30_threads/thread/id/hash.cc: Remove gthreads
2176         dependency.
2177         * testsuite/30_threads/thread/id/operators.cc: Likewise.
2178         * testsuite/30_threads/thread/id/operators_c++20.cc: Likewise.
2179         * testsuite/30_threads/thread/id/output.cc: New test.
2180
2181 2023-09-11  Pekka Seppänen  <pexu@gcc.mail.kapsi.fi>
2182
2183         * src/c++11/cow-locale_init.cc: Add [[maybe_unused]] attribute.
2184         * src/c++17/fs_path.cc (path::_S_convert_loc): Likewise.
2185         * src/filesystem/path.cc (path::_S_convert_loc): Likewise.
2186
2187 2023-09-08  Jonathan Wakely  <jwakely@redhat.com>
2188
2189         * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++23 directory.
2190         * configure: Regenerate.
2191         * doc/html/manual/*: Regenerate.
2192         * doc/xml/manual/using.xml: Update documentation on linking.
2193         * include/std/stacktrace: Remove declarations of libbacktrace
2194         APIs.
2195         (stacktrace_entry::_S_err_handler, stacktrace_entry::_S_init):
2196         Remove.
2197         (stacktrace_entry::_Info): New class.
2198         (stacktrace_entry::_M_get_info): Use _Info.
2199         (__stacktrace_impl): New class.
2200         (basic_stacktrace): Derive from __stacktrace_impl.
2201         (basic_stacktrace::current): Use __stacktrace_impl::_S_current.
2202         * scripts/testsuite_flags.in: Adjust LDFLAGS to find
2203         libstdc++exp instead of libstdc++_libbacktrace.
2204         * src/Makefile.am (SUBDIRS): Add c++23 directory.
2205         * src/Makefile.in: Regenerate.
2206         * src/c++20/Makefile.am: Fix comment.
2207         * src/c++20/Makefile.in: Regenerate.
2208         * src/c++23/Makefile.am: New file.
2209         * src/c++23/Makefile.in: New file.
2210         * src/c++23/stacktrace.cc: New file with definitions of
2211         stacktrace_entry::_Info and __stacktrace_impl members.
2212         * src/experimental/Makefile.am: Use LIBADD to include other
2213         libraries.
2214         * src/experimental/Makefile.in: Regenerate.
2215         * src/libbacktrace/Makefile.am: Use noinst_LTLIBRARIES.
2216         * src/libbacktrace/Makefile.in: Regenerate.
2217         * testsuite/19_diagnostics/stacktrace/current.cc: Adjust
2218         dg-options to use -lstdc++exp.
2219         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
2220         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
2221         * testsuite/23_containers/vector/debug/assign4_backtrace_neg.cc:
2222         Likewise.
2223
2224 2023-09-08  Alexey Lapshin  <alexey.lapshin@espressif.com>
2225
2226         * src/libbacktrace/Makefile.am: Remove -Werror.
2227         * src/libbacktrace/Makefile.in: Regenerate.
2228
2229 2023-09-08  Jonathan Wakely  <jwakely@redhat.com>
2230
2231         * testsuite/Makefile.am (check-DEJAGNU): Use @ in recipe.
2232         * testsuite/Makefile.in: Regenerate.
2233
2234 2023-09-08  Yang Yujie  <yangyujie@loongson.cn>
2235
2236         * configure.host: Register t-loongarch in tmake_file.
2237         * config/cpu/loongarch/t-loongarch: New file.  Manually refresh
2238         MULTISUBDIR with $(shell $(CXX) --print-multi-directory).
2239
2240 2023-09-07  Bruno Victal  <mirai@makinata.eu>
2241
2242         * acinclude.m4: Update docbook xsl URI.
2243         * configure: Regenerate.
2244
2245 2023-09-07  Bruno Victal  <mirai@makinata.eu>
2246
2247         * doc/Makefile.am: Fix 'doc-install-info' rule.
2248         Fix typo in commment.
2249         * doc/Makefile.in: Regenerate.
2250
2251 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2252
2253         * testsuite/27_io/filesystem/path/concat/94063.cc: Simplify
2254         dg-do target selector.
2255
2256 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2257
2258         * testsuite/config/default.exp: Remove trailing whitespace.
2259         * testsuite/lib/dg-options.exp: Likewise.
2260         * testsuite/lib/prune.exp: Likewise.
2261         * testsuite/libstdc++-abi/abi.exp: Likewise.
2262         * testsuite/libstdc++-dg/conformance.exp: Likewise.
2263         * testsuite/libstdc++-prettyprinters/prettyprinters.exp:
2264         Likewise.
2265         * testsuite/libstdc++-xmethods/xmethods.exp: Likewise.
2266         * testsuite/lib/libstdc++.exp: Likewise.
2267         (check_v3_target_c_std): Fix filename for temporary source file.
2268
2269 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2270
2271         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for mkdir,
2272         chmod, chdir, and getcwd.
2273         * config.h.in: Regenerate.
2274         * configure: Regenerate.
2275         * src/c++17/fs_ops.cc (create_dir): Use USE_MKDIR macro.
2276         (fs::current_path): Use USE_GETCWD and USE_CHDIR macros.
2277         (fs::permissions): Use USE_CHMOD macro.
2278         * src/filesystem/ops-common.h [FILESYSTEM_IS_WINDOWS]
2279         (chmod, mkdir, getcwd, chdir): Define new macros.
2280         [FILESYSTEM_IS_WINDOWS] (chmod, mkdir, getcwd, chdir): Use
2281         new macros.
2282         * src/filesystem/ops.cc (create_dir): Use USE_MKDIR macro.
2283         (fs::current_path): Use USE_GETCWD and USE_CHDIR macros.
2284         (fs::permissions): Use USE_CHMOD macro.
2285
2286 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2287
2288         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Disable by default
2289         for avr.
2290         * configure: Regenerate.
2291
2292 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2293
2294         * testsuite/23_containers/unordered_map/operations/1.cc: Add
2295         dg-options for C++20 mode.
2296         * testsuite/23_containers/unordered_multimap/operations/1.cc:
2297         Likewise.
2298         * testsuite/23_containers/unordered_multiset/operations/1.cc:
2299         Likewise.
2300         * testsuite/23_containers/unordered_set/operations/1.cc:
2301         Likewise.
2302         * testsuite/std/time/parse.cc: Move dg-options before dg-do.
2303
2304 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2305
2306         * testsuite/std/ranges/access/cbegin.cc: Adjust for C++23
2307         compatibility.
2308         * testsuite/std/ranges/access/cdata.cc: Likewise.
2309         * testsuite/std/ranges/access/cend.cc: Likewise.
2310         * testsuite/std/ranges/access/crbegin.cc: Likewise.
2311         * testsuite/std/ranges/access/crend.cc: Likewise.
2312         * testsuite/std/ranges/adaptors/take.cc: Likewise.
2313         * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2314         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2315
2316 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2317
2318         * include/bits/iterator_concepts.h (__imove::iter_move): Define
2319         poison pill as deleted for consistency.
2320         (__access::begin): Replace with a single declaration.
2321         * include/bits/ranges_base.h (__access::end, __access::rbegin)
2322         (__access::rend, __access::size): Likewise.
2323         * include/bits/version.def (ranges): Update value for C++23.
2324         * include/bits/version.h: Regenerate.
2325         * libsupc++/compare (__compare): Add missing poison pill
2326         overloads.
2327         * testsuite/std/ranges/version_c++23.cc: Adjust expected value
2328         of __cpp_lib_ranges.
2329         * testsuite/std/ranges/access/p2602.cc: New test.
2330
2331 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2332
2333         * include/bits/iterator_concepts.h (ranges::__cust_imove):
2334         Rename to ranges::__imove.
2335         (_IMove): Rename to _IterMove.
2336         (ranges::__cust_iswap): Rename to ranges::__iswap.
2337         (ranges::__cust): Rename to ranges::_Cpo.
2338         (ranges::__cust_access): Rename to ranges::__access.
2339         * include/bits/ranges_base.h (ranges::__cust_access): Rename to
2340         ranges::__access.
2341         (ranges::__cust): Rename to ranges::_Cpo.
2342         * include/std/concepts (ranges::__cust_swap):  Rename to
2343         ranges::__swap.
2344         (ranges::__cust): Rename to ranges::_Cpo.
2345         * libsupc++/compare (__cmp_cust): Rename to __compare.
2346         (__cmp_algo): Rename to _Cpo.
2347
2348 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2349
2350         * include/bits/version.def (ranges): Update value.
2351         * include/bits/version.h: Regenerate.
2352         * include/std/ranges (__detail::__boxable): Use
2353         move_constructible instead of copy_constructible for C++23.
2354         (__detail::__box<T>): Adjust constraints for partial
2355         specialization.
2356         (single_view, transform_view): Use __box_constructible instead
2357         of copy_constructible in constraints.
2358         (zip_transform_view, adjacent_transform_view, repeat_view): Use
2359         move_constructible instead of copy_constructible in constraints.
2360         * testsuite/std/ranges/adaptors/adjacent_transform/1.cc: Check
2361         construction from move-only argument.
2362         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2363         * testsuite/std/ranges/repeat/1.cc: Likewise.
2364         * testsuite/std/ranges/single_view.cc: Likewise.
2365         * testsuite/std/ranges/zip_transform/1.cc: Likewise.
2366         * testsuite/std/ranges/version_c++23.cc: Adjust expected value
2367         of __cpp_lib_ranges.
2368
2369 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2370
2371         * testsuite/util/testsuite_iterators.h (is_customization_point_object):
2372         Remove parameter name.
2373
2374 2023-09-06  Jonathan Wakely  <jwakely@redhat.com>
2375
2376         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Disable by default
2377         for freestanding.
2378         * configure: Regenerate.
2379
2380 2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
2381
2382         Revert
2383         2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
2384
2385         PR libstdc++/111238
2386         * configure: Regenerate.
2387         * configure.ac: Call GLIBCXX_CHECK_LINKER_FEATURES in cross,
2388         non-Canadian builds.
2389
2390 2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
2391
2392         PR libstdc++/111238
2393         * configure: Regenerate.
2394         * configure.ac: Call GLIBCXX_CHECK_LINKER_FEATURES in cross,
2395         non-Canadian builds.
2396
2397 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2398
2399         * testsuite/26_numerics/complex/literals/types.cc: Remove
2400         dg-options and add target selector instead.
2401
2402 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2403
2404         * testsuite/tr1/6_containers/utility/pair.cc: Remove dg-options
2405         and qualify ambiguous calls to get.
2406         * testsuite/tr1/8_c_compatibility/cmath/pow_cmath.cc: Adjust
2407         expected result for std::pow(float, int) as per DR 550.
2408
2409 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2410
2411         * testsuite/20_util/auto_ptr/1.cc: Remove dg-options -std=c++03
2412         and add dg-warning for deprecation warnings.
2413         * testsuite/20_util/auto_ptr/2.cc: Likewise.
2414         * testsuite/20_util/auto_ptr/3.cc: Likewise.
2415         * testsuite/20_util/auto_ptr/3946.cc: Likewise.
2416         * testsuite/20_util/auto_ptr/4.cc: Likewise.
2417         * testsuite/20_util/auto_ptr/5.cc: Likewise.
2418         * testsuite/20_util/auto_ptr/6.cc: Likewise.
2419         * testsuite/20_util/auto_ptr/7.cc: Likewise.
2420         * testsuite/20_util/auto_ptr/assign_neg.cc: Likewise.
2421         * testsuite/20_util/auto_ptr/requirements/explicit_instantiation/1.cc:
2422         Likewise.
2423         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr.cc:
2424         Likewise.
2425         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr_neg.cc:
2426         Likewise.
2427         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr_rvalue_neg.cc:
2428         Likewise.
2429         * testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc:
2430         Likewise.
2431         * testsuite/tr1/2_general_utilities/shared_ptr/cons/auto_ptr.cc:
2432         Likewise.
2433         * testsuite/tr1/2_general_utilities/shared_ptr/cons/auto_ptr_neg.cc:
2434         Likewise.
2435
2436 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2437
2438         PR libstdc++/26142
2439         * testsuite/23_containers/vector/26412-1.cc: Moved to...
2440         * testsuite/23_containers/vector/26142-1.cc: ...here.
2441         * testsuite/23_containers/vector/26412-2.cc: Moved to...
2442         * testsuite/23_containers/vector/26142-2.cc: ...here.
2443
2444 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2445
2446         * testsuite/20_util/bitset/107037.cc: Add c++98_only selector.
2447         * testsuite/26_numerics/complex/56111.cc: Likewise.
2448
2449 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2450
2451         * testsuite/23_containers/deque/requirements/explicit_instantiation/2.cc:
2452         Add dg-options to restrict the test to C++98 mode.
2453         * testsuite/23_containers/list/requirements/explicit_instantiation/2.cc:
2454         Likewise.
2455
2456 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2457
2458         * testsuite/20_util/expected/bad.cc: Add missing target
2459         selector.
2460
2461 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2462
2463         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Adjust
2464         expected errors.
2465         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
2466         Likewise.
2467
2468 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2469
2470         * testsuite/27_io/filesystem/iterators/91067.cc: Add
2471         -Wno-self-move to options.
2472         * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
2473
2474 2023-09-01  Vladimir Palevich  <palevichva@gmail.com>
2475
2476         PR libstdc++/110879
2477         * include/bits/vector.tcc (_M_realloc_insert): End guard
2478         lifetime just before assignment to class members.
2479         (_M_default_append): Likewise.
2480
2481 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2482
2483         * src/c++17/fs_ops.cc (fs::absolute) [FILESYSTEM_IS_WINDOWS]:
2484         Use __resize_and_overwrite to fill buffer.
2485         (fs::read_symlink) [HAVE_READLINK]: Likewise.
2486         * src/filesystem/ops-common.h (get_temp_directory_from_env)
2487         [FILESYSTEM_IS_WINDOWS]: Likewise.
2488
2489 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2490
2491         PR libstdc++/111077
2492         * include/bits/atomic_base.h (__atomic_impl::__compare_exchange):
2493         Add _AtomicRef non-type template parameter and use a loop if it
2494         is true.
2495         (__atomic_impl::compare_exchange_weak): Add _AtomicRef NTTP.
2496         (__atomic_impl::compare_exchange_strong): Likewise.
2497         (atomic_ref::compare_exchange_weak): Use true for NTTP.
2498         (atomic_ref::compare_exchange_strong): Use true for NTTP.
2499         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc:
2500         Fix test to not rely on atomic_ref::load() to return an object
2501         with padding preserved.
2502
2503 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2504
2505         * testsuite/27_io/filesystem/path/108636.cc: Add dg-require for
2506         filesystem support.
2507
2508 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2509
2510         * src/c++20/tzdb.cc (tzdb::current_zone): Check configure macros
2511         for POSIX readlink before using filesystem::read_symlink.
2512
2513 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2514
2515         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Default to yes.
2516         * configure: Regenerate.
2517
2518 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2519
2520         * include/bits/chrono_io.h (_Parser::operator()): Set failbit
2521         early if invalid values are read when _M_need & _TimeOfDay is
2522         non-zero.
2523         * testsuite/std/time/parse.cc: Check that "25:59" cannot be
2524         parsed for "%H:%M".
2525
2526 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2527
2528         PR libstdc++/111162
2529         * include/bits/chrono_io.h (_Parser::Operator()): Check %C
2530         values are in range of year::min() to year::max().
2531         * testsuite/std/time/parse.cc: Check out of range centuries.
2532
2533 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2534
2535         * include/std/format (__format::_Sink::_M_reset): Change second
2536         argument from iterator to offset.
2537
2538 2023-08-24  Paul Dreik  <gccpatches@pauldreik.se>
2539
2540         PR libstdc++/111102
2541         * testsuite/std/format/string.cc: Check wide character format
2542         strings with out-of-range widths.
2543
2544 2023-08-24  Paul Dreik  <gccpatches@pauldreik.se>
2545
2546         PR libstdc++/111102
2547         * include/std/format (__format::__parse_integer): Check for
2548         non-null pointer.
2549
2550 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2551
2552         * testsuite/std/format/functions/format_to.cc: Avoid warning for
2553         unused variables.
2554
2555 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2556
2557         * include/std/atomic: Add comment to #ifdef and fix indentation.
2558         * include/std/ostream: Check __glibcxx_syncbuf instead of
2559         __cplusplus and _GLIBCXX_HOSTED.
2560         * include/std/thread: Add comment to #ifdef.
2561
2562 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2563
2564         * include/bits/version.def (__cpp_lib_ratio): Define.
2565         * include/bits/version.h: Regenerate.
2566         * include/std/ratio (quecto, ronto, yocto, zepto)
2567         (zetta, yotta, ronna, quetta): Define.
2568         * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Adjust
2569         dg-error line numbers.
2570
2571 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2572
2573         * python/libstdcxx/v6/printers.py (StdLocalePrinter): New
2574         printer class.
2575         * testsuite/libstdc++-prettyprinters/locale.cc: New test.
2576
2577 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2578
2579         PR libstdc++/110944
2580         * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Do
2581         not show template arguments.
2582         (StdVariantPrinter): Likewise.
2583         * testsuite/libstdc++-prettyprinters/compat.cc: Adjust expected
2584         output.
2585         * testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
2586         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
2587
2588 2023-08-23  François Dumont  <fdumont@gcc.gnu.org>
2589
2590         * testsuite/util/replacement_memory_operators.h
2591         (counter::scope): New, capture and reset counter count at construction and
2592         restore it at destruction.
2593         (counter::check_new): Add scope instantiation.
2594         * testsuite/23_containers/unordered_map/96088.cc (main):
2595         Add counter::scope instantiation.
2596         * testsuite/23_containers/unordered_multimap/96088.cc (main): Likewise.
2597         * testsuite/23_containers/unordered_multiset/96088.cc (main): Likewise.
2598         * testsuite/23_containers/unordered_set/96088.cc (main): Likewise.
2599         * testsuite/ext/malloc_allocator/deallocate_local.cc (main): Likewise.
2600         * testsuite/ext/new_allocator/deallocate_local.cc (main): Likewise.
2601         * testsuite/ext/throw_allocator/deallocate_local.cc (main): Likewise.
2602         * testsuite/ext/pool_allocator/allocate_chunk.cc (started): New global.
2603         (operator new(size_t)): Check started.
2604         (main): Set/Unset started.
2605         * testsuite/17_intro/no_library_allocation.cc: New test case.
2606
2607 2023-08-21  Jonathan Wakely  <jwakely@redhat.com>
2608
2609         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
2610         Call std::set_terminate before throwing the nested exception.
2611
2612 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
2613
2614         PR target/111060
2615         * include/std/format (formatter): Only define specializations
2616         for 16-bit floating-point types for C++23.
2617         * include/std/limits (numeric_limits): Likewise.
2618
2619 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
2620
2621         * include/bits/chrono_io.h (operator<<): Make uses of wide
2622         strings with streams and std::format type-dependent on _CharT.
2623         * include/std/format [!_GLIBCXX_USE_WCHAR_T] Do not use
2624         __to_wstring_numeric.
2625
2626 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
2627
2628         * include/bits/chrono_io.h (operator<<): Use __format_context.
2629         * include/std/format (__format::__format_context): New alias
2630         template.
2631         [!_GLIBCXX_USE_WCHAR_T] (wformat_args, make_wformat_arg):
2632         Disable.
2633
2634 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2635
2636         Revert:
2637         2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2638
2639         * config/locale/generic/c_locale.cc (__convert_to_v): Reuse
2640         double overload for long double if possible.
2641
2642 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2643
2644         * src/c++20/tzdb.cc (tzdata_file, leaps_file): Change type to
2645         std::string_view.
2646
2647 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2648
2649         * config/locale/generic/c_locale.cc (__convert_to_v): Reuse
2650         double overload for long double if possible.
2651
2652 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2653
2654         * src/c++98/localename.cc (is_C_locale): New function.
2655         (locale::locale(const char*)): Use is_C_locale.
2656
2657 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2658
2659         PR libstdc++/110945
2660         * include/bits/basic_string.h (basic_string::assign(Iter, Iter)):
2661         Dispatch to _M_replace or move assignment from a temporary,
2662         based on the iterator type.
2663
2664 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2665
2666         * include/std/format (formatter): Add partial specializations
2667         for extended floating-point types.
2668         * testsuite/std/format/functions/format.cc: Move test_float128()
2669         to ...
2670         * testsuite/std/format/formatter/ext_float.cc: New test.
2671
2672 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2673
2674         * include/bits/c++config (__gnu_cxx::__bfloat16_t): Define
2675         whenever __BFLT16_DIG__ is defined, not only for C++23.
2676         * include/std/limits (numeric_limits<bfloat16_t>): Likewise.
2677         (numeric_limits<_Float16>, numeric_limits<_Float32>)
2678         (numeric_limits<_Float64>): Likewise for other extended
2679         floating-point types.
2680
2681 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2682
2683         * include/experimental/internet (address_v4::to_string): Remove
2684         unused parameter name.
2685
2686 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2687
2688         * libsupc++/compare (__cmp_cat::__unseq): Make ctor consteval.
2689         * testsuite/18_support/comparisons/categories/zero_neg.cc: Prune
2690         excess errors caused by invalid consteval calls.
2691
2692 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2693
2694         * include/bits/chrono_io.h (__units_suffix_misc): Remove.
2695         (__units_suffix): Return a known suffix as string view, do not
2696         write unknown suffixes to a buffer.
2697         (__fmt_units_suffix): New function that formats the suffix using
2698         std::format_to.
2699         (operator<<, __chrono_formatter::_M_q): Use __fmt_units_suffix.
2700         (__chrono_formatter::_M_Z): Correct lifetime of wstring.
2701
2702 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2703
2704         * include/std/format [_GLIBCXX_USE_WCHAR_T]: Guard all wide
2705         string formatters with this macro.
2706         (__formatter_int::_M_format_int, __formatter_fp::format)
2707         (formatter<const void*, C>::format): Use __to_wstring_numeric
2708         instead of std::ctype::widen.
2709         (__formatter_fp::_M_localize): Use hardcoded wchar_t values
2710         instead of std::ctype::widen.
2711         * testsuite/std/format/functions/format.cc: Add more checks for
2712         wstring formatting of arithmetic types.
2713
2714 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2715
2716         * include/bits/basic_string.h (to_string(floating-point-type)):
2717         Implement using std::to_chars for C++26.
2718         * include/bits/version.def (__cpp_lib_to_string): Define.
2719         * include/bits/version.h: Regenerate.
2720         * testsuite/21_strings/basic_string/numeric_conversions/char/dr1261.cc:
2721         Adjust expected result in C++26 mode.
2722         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string.cc:
2723         Likewise.
2724         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/dr1261.cc:
2725         Likewise.
2726         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/to_wstring.cc:
2727         Likewise.
2728         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_float.cc:
2729         New test.
2730         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/to_wstring_float.cc:
2731         New test.
2732         * testsuite/21_strings/basic_string/numeric_conversions/version.cc:
2733         New test.
2734
2735 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2736
2737         * include/bits/basic_string.h (to_string(integral-type)): Use
2738         resize_and_overwrite when available.
2739         (__to_wstring_numeric): New helper functions.
2740         (to_wstring): Use std::to_string then __to_wstring_numeric.
2741         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_int.cc:
2742         Remove check for no excess capacity.
2743
2744 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2745
2746         * include/bits/basic_string.h (__resize_and_overwrite): New
2747         function.
2748         * include/bits/basic_string.tcc (__resize_and_overwrite): New
2749         function.
2750         (resize_and_overwrite): Simplify by using reserve instead of
2751         growing the string manually. Adjust for C++11 compatibility.
2752         * include/bits/cow_string.h (resize_and_overwrite): New
2753         function.
2754         (__resize_and_overwrite): New function.
2755         * include/bits/version.def (__cpp_lib_string_resize_and_overwrite):
2756         Do not depend on cxx11abi.
2757         * include/bits/version.h: Regenerate.
2758         * include/std/format (__formatter_fp::_S_resize_and_overwrite):
2759         Remove.
2760         (__formatter_fp::format, __formatter_fp::_M_localize): Use
2761         __resize_and_overwrite instead of _S_resize_and_overwrite.
2762         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
2763         Adjust for C++11 compatibility when included by ...
2764         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite_ext.cc:
2765         New test.
2766
2767 2023-08-17  Patrick Palka  <ppalka@redhat.com>
2768
2769         * include/bits/regex.h (regex_iterator::iterator_concept):
2770         Define for C++20 as per P2770R0.
2771         (regex_token_iterator::iterator_concept): Likewise.
2772         * include/std/ranges (__detail::__as_lvalue): Define.
2773         (join_view::_Iterator): Befriend join_view.
2774         (join_view::_Iterator::_M_satisfy): Use _M_get_outer
2775         instead of _M_outer.
2776         (join_view::_Iterator::_M_get_outer): Define.
2777         (join_view::_Iterator::_Iterator): Split constructor taking
2778         _Parent argument into two as per P2770R0.  Remove constraint on
2779         default constructor.
2780         (join_view::_Iterator::_M_outer): Make this data member present
2781         only when the underlying range is forward.
2782         (join_view::_Iterator::operator++): Use _M_get_outer instead of
2783         _M_outer.
2784         (join_view::_Iterator::operator--): Use __as_lvalue helper.
2785         (join_view::_Iterator::operator==): Adjust constraints as per
2786         P2770R0.
2787         (join_view::_Sentinel::__equal): Use _M_get_outer instead of
2788         _M_outer.
2789         (join_view::_M_outer): New data member when the underlying range
2790         is non-forward.
2791         (join_view::begin): Adjust definition as per P2770R0.
2792         (join_view::end): Likewise.
2793         (join_with_view::_M_outer_it): New data member when the
2794         underlying range is non-forward.
2795         (join_with_view::begin): Adjust definition as per P2770R0.
2796         (join_with_view::end): Likewise.
2797         (join_with_view::_Iterator::_M_outer_it): Make this data member
2798         present only when the underlying range is forward.
2799         (join_with_view::_Iterator::_M_get_outer): Define.
2800         (join_with_view::_Iterator::_Iterator): Split constructor
2801         taking _Parent argument into two as per P2770R0.  Remove
2802         constraint on default constructor.
2803         (join_with_view::_Iterator::_M_update_inner): Adjust definition
2804         as per P2770R0.
2805         (join_with_view::_Iterator::_M_get_inner): Likewise.
2806         (join_with_view::_Iterator::_M_satisfy): Adjust calls to
2807         _M_get_inner.  Use _M_get_outer instead of _M_outer_it.
2808         (join_with_view::_Iterator::operator==): Adjust constraints
2809         as per P2770R0.
2810         (join_with_view::_Sentinel::operator==): Use _M_get_outer
2811         instead of _M_outer_it.
2812         * testsuite/std/ranges/adaptors/p2770r0.cc: New test.
2813
2814 2023-08-17  Patrick Palka  <ppalka@redhat.com>
2815
2816         PR libstdc++/108827
2817         * include/std/ranges (__adaptor::_RangeAdaptorClosure):
2818         Convert into a CRTP class template.  Move hidden operator|
2819         friends into namespace scope and adjust their constraints.
2820         (__closure::__is_range_adaptor_closure_fn): Define.
2821         (__closure::__is_range_adaptor_closure): Define.
2822         (__adaptor::_Partial): Adjust use of _RangeAdaptorClosure.
2823         (__adaptor::_Pipe): Likewise.
2824         (views::_All): Likewise.
2825         (views::_Join): Likewise.
2826         (views::_Common): Likewise.
2827         (views::_Reverse): Likewise.
2828         (views::_Elements): Likewise.
2829         (views::_Adjacent): Likewise.
2830         (views::_AsRvalue): Likewise.
2831         (views::_Enumerate): Likewise.
2832         (views::_AsConst): Likewise.
2833         * testsuite/std/ranges/adaptors/all.cc: Reinstate assertion
2834         expecting that adding empty range adaptor closure objects to a
2835         pipeline doesn't increase the size of a pipeline.
2836
2837 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2838
2839         * include/std/format (__format::_Pres_type): Add _Pres_F.
2840         (__formatter_fp::parse): Use _Pres_F for 'F'.
2841         (__formatter_fp::format): Set __upper for _Pres_F.
2842         * testsuite/std/format/functions/format.cc: Check formatting of
2843         infinity and NaN for each presentation type.
2844
2845 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2846
2847         * include/Makefile.in: Regenerate.
2848
2849 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2850
2851         * testsuite/24_iterators/move_iterator/p2520r0.cc: Add no_pch.
2852         * testsuite/std/format/functions/format.cc: Likewise.
2853         * testsuite/std/format/functions/format_c++23.cc: Likewise.
2854
2855 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2856
2857         * testsuite/lib/dg-options.exp (add_options_for_no_pch): Remove
2858         any "-include bits/stdc++.h" from options and add the macro to
2859         the existing options instead of replacing them.
2860
2861 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
2862
2863         * include/bits/basic_string.tcc (resize_and_overwrite): Invoke
2864         the callable with the same size as resize_and_overwrite was
2865         called with.
2866         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
2867         Check with small values for the new size.
2868         * testsuite/std/format/functions/format.cc: Check wide
2869         formatting of double values that produce small strings.
2870         * testsuite/std/format/functions/format_c++23.cc: New test.
2871
2872 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
2873
2874         * include/bits/version.def (stds): Update value for C++23.
2875         * include/bits/version.h: Regenerate.
2876
2877 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
2878
2879         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
2880         Fix name of upstream file this was derived from.
2881         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
2882         Likewise.
2883         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
2884         Likewise.
2885         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
2886         Likewise.
2887         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h: Likewise.
2888
2889 2023-08-16  Arsen Arsenović  <arsen@aarsen.me>
2890
2891         * libsupc++/typeinfo: Switch to bits/version.h for
2892         __cpp_lib_constexpr_typeinfo.
2893         * libsupc++/new: Switch to bits/version.h for
2894         __cpp_lib_{launder,hardware_interference_size,destroying_delete}.
2895         (launder): Guard behind __cpp_lib_launder.
2896         (hardware_destructive_interference_size)
2897         (hardware_constructive_interference_size): Guard behind
2898         __cpp_lib_hardware_interference_size.
2899         * libsupc++/exception: Switch to bits/version.h for
2900         __cpp_lib_uncaught_exceptions.
2901         (uncaught_exceptions): Guard behind __cpp_lib_uncaught_exceptions.
2902         * libsupc++/compare: Switch to bits/version.h for
2903         __cpp_lib_three_way_comparison.
2904         (three_way_comparable, three_way_comparable_with)
2905         (compare_three_way, weak_order, strong_order, partial_order):
2906         Guard behind __cpp_lib_three_way_comparison >= 201907L.
2907         * include/std/chrono: Drop __cpp_lib_chrono definition.
2908         * include/std/vector: Switch to bits/version.h for
2909         __cpp_lib_erase_if.
2910         (erase, erase_if): Guard behind __cpp_lib_erase_if.
2911         * include/std/variant: Switch to bits/version.h for
2912         __cpp_lib_variant.  Guard whole header behind that FTM.
2913         * include/std/utility: Switch to bits/version.h for
2914         __cpp_lib_{exchange_function,constexpr_algorithms,as_const},
2915         __cpp_lib_{integer_comparison_functions,to_underlying}, and
2916         __cpp_lib_unreachable.
2917         (exchange): Guard behind __cpp_lib_exchange_function.
2918         (cmp_equal, cmp_not_equal, cmp_less, cmp_greater, cmp_less_equal)
2919         (cmp_greater_equal, in_range): Guard behind
2920         __cpp_lib_integer_comparison_functions.
2921         (to_underlying): Guard behind __cpp_lib_to_underlying.
2922         (unreachable): Guard behind __cpp_lib_unreachable.
2923         * include/std/type_traits: Switch to bits/version.h for
2924         __cpp_lib_is_{null_pointer,final,nothrow_convertible,aggregate},
2925         __cpp_lib_is_{constant_evaluated,invocable,layout_compatible},
2926         __cpp_lib_is_{pointer_interconvertible,scoped_enum,swappable},
2927         __cpp_lib_{logical_traits,reference_from_temporary,remove_cvref},
2928         __cpp_lib_{result_of_sfinae,transformation_trait_aliases},
2929         __cpp_lib_{type_identity,type_trait_variable_templates},
2930         __cpp_lib_{unwrap_ref,void_t,integral_constant_callable},
2931         __cpp_lib_{bool_constant,bounded_array_traits}, and
2932         __cpp_lib_has_unique_object_representations.
2933         (integral_constant::operator()): Guard behind
2934         __cpp_lib_integral_constant_callable.
2935         (bool_constant): Guard behind __cpp_lib_bool_constant.
2936         (conjunction, disjunction, negation, conjunction_v, disjunction_v)
2937         (negation_v): Guard behind __cpp_lib_logical_traits.
2938         (is_null_pointer): Guard behind __cpp_lib_is_null_pointer.
2939         (is_final): Guard behind __cpp_lib_is_final.
2940         (is_nothrow_convertible, is_nothrow_convertible_v): Guard behind
2941         __cpp_lib_is_nothrow_convertible.
2942         (remove_const_t, remove_volatile_t, remove_cv_t)
2943         (add_const_t, add_volatile_t, add_cv_t): Guard behind
2944         __cpp_lib_transformation_trait_aliases.
2945         (void_t): Guard behind __cpp_lib_void_t.
2946         (is_swappable_with_v, is_nothrow_swappable_with_v)
2947         (is_swappable_with, is_nothrow_swappable_with): Guard behind
2948         __cpp_lib_is_swappable.
2949         (is_nothrow_invocable_r, is_invocable_r, invoke_result)
2950         (is_invocable, invoke_result_t): Guard behind
2951         __cpp_lib_is_invocable.
2952         (alignment_of_v, extent_v, has_virtual_destructor_v)
2953         (is_abstract_v, is_arithmetic_v, is_array_v)
2954         (is_assignable_v, is_base_of_v, is_class_v, is_compound_v)
2955         (is_constructible_v, is_const_v, is_convertible_v)
2956         (is_copy_assignable_v, is_copy_constructible_v)
2957         (is_default_constructible_v, is_destructible_v)
2958         (is_empty_v, is_enum_v, is_final_v, is_floating_point_v)
2959         (is_function_v, is_fundamental_v, is_integral_v)
2960         (is_invocable_r_v, is_invocable_v, is_literal_type_v)
2961         (is_lvalue_reference_v, is_member_function_pointer_v)
2962         (is_member_object_pointer_v, is_member_pointer_v)
2963         (is_move_assignable_v, is_move_constructible_v)
2964         (is_nothrow_assignable_v, is_nothrow_constructible_v)
2965         (is_nothrow_copy_assignable_v, is_nothrow_copy_constructible_v)
2966         (is_nothrow_default_constructible_v, is_nothrow_destructible_v)
2967         (is_nothrow_invocable_r_v, is_nothrow_invocable_v)
2968         (is_nothrow_move_assignable_v, is_nothrow_move_constructible_v)
2969         (is_null_pointer_v, is_object_v, is_pod_v, is_pointer_v)
2970         (is_polymorphic_v, is_reference_v, is_rvalue_reference_v)
2971         (is_same_v, is_scalar_v, is_signed_v, is_standard_layout_v)
2972         (is_trivially_assignable_v, is_trivially_constructible_v)
2973         (is_trivially_copyable_v, is_trivially_copy_assignable_v)
2974         (is_trivially_copy_constructible_v)
2975         (is_trivially_default_constructible_v)
2976         (is_trivially_destructible_v, is_trivially_move_assignable_v)
2977         (is_trivially_move_constructible_v, is_trivial_v, is_union_v)
2978         (is_unsigned_v, is_void_v, is_volatile_v, rank_v, as variadic):
2979         Guard behind __cpp_lib_type_trait_variable_templates.
2980         (has_unique_object_representations)
2981         (has_unique_object_representations_v): Guard behind
2982         __cpp_lib_has_unique_object_representation.
2983         (is_aggregate): Guard behind __cpp_lib_is_aggregate.
2984         (remove_cvref, remove_cvref_t): Guard behind
2985         __cpp_lib_remove_cvref.
2986         (type_identity, type_identity_t): Guard behind
2987         __cpp_lib_type_identity.
2988         (unwrap_reference, unwrap_reference_t, unwrap_ref_decay)
2989         (unwrap_ref_decay_t): Guard behind __cpp_lib_unwrap_ref.
2990         (is_bounded_array_v, is_unbounded_array_v, is_bounded_array)
2991         (is_unbounded_array): Guard behind __cpp_lib_bounded_array_traits.
2992         (is_scoped_enum, is_scoped_enum_v): Guard behind
2993         __cpp_lib_is_scoped_enum.
2994         (reference_constructs_from_temporary)
2995         (reference_constructs_from_temporary_v): Guard behind
2996         __cpp_lib_reference_from_temporary.
2997         * include/std/tuple: Switch to bits/version.h for
2998         __cpp_lib_{constexpr_tuple,tuple_by_type,apply_make_from_tuple}.
2999         (get<T>): Guard behind __cpp_lib_tuple_by_type.
3000         (apply): Guard behind __cpp_lib_apply.
3001         (make_from_tuple): Guard behind __cpp_lib_make_from_tuple.
3002         * include/std/syncstream: Switch to bits/version.h for
3003         __cpp_lib_syncbuf.  Guard header behind that FTM.
3004         * include/std/string_view: Switch to bits/version.h for
3005         __cpp_lib_{string_{view,contains},constexpr_string_view} and
3006         __cpp_lib_starts_ends_with.
3007         (basic_string_view::starts_with, basic_string_view::ends_with):
3008         Guard behind __cpp_lib_starts_ends_with.
3009         [C++23 && _GLIBCXX_HOSTED && !defined(__cpp_lib_string_contains)]:
3010         Assert as impossible ithout a bug in C++23.
3011         * include/std/string: Switch to bits/version.h for
3012         __cpp_lib_erase_if.
3013         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3014         * include/std/thread: Switch to bits/version.h for
3015         __cpp_lib_jthread.
3016         * include/std/stop_token: Switch to bits/version.h for
3017         __cpp_lib_jthread.
3018         * include/std/spanstream: Switch to bits/version.h for
3019         __cpp_lib_spanstream.  Guard header behind that FTM.
3020         * include/std/span: Switch to bits/version.h for __cpp_lib_span.
3021         Guard header behind that FTM.
3022         * include/std/source_location: Switch to bits/version.h for
3023         __cpp_lib_source_location.  Guard header with that FTM.
3024         * include/std/shared_mutex: Switch to bits/version.h for
3025         __cpp_lib_shared{,_timed}_mutex.
3026         (shared_mutex): Guard behind __cpp_lib_shared_mutex.
3027         * include/std/semaphore: Switch to bits/version.h for
3028         __cpp_lib_semaphore.  Guard header behind that FTM.
3029         * include/std/ranges: Switch to bits/version.h for
3030         __cpp_lib_ranges_{zip,chunk{,_by},slide,join_with},
3031         __cpp_lib_ranges_{repeat_stride,cartesian_product,as_rvalue},
3032         and __cpp_lib_ranges_{as_const,enumerate,iota}.
3033         (ranges::zip et al, ranges::chunk et al, ranges::slide et al)
3034         (ranges::chunk_by et al, ranges::join_with et al)
3035         (ranges::stride et al, ranges::cartesian_product et al)
3036         (ranges::as_rvalue et al, ranges::as_const et al)
3037         (ranges::enumerate et al): Guard behind appropriate FTM.
3038         * include/std/optional: Switch to bits/version.h for
3039         __cpp_lib_optional.  Guard header behind that FTM.
3040         * include/std/numeric: Switch to bits/version.h for
3041         __cpp_lib_{gcd{,_lcm},lcm,constexpr_numeric,interpolate}
3042         and __cpp_lib_parallel_algorithm.
3043         (gcd, lcm): Guard behind __cpp_lib_gcd_lcm.
3044         (midpoint): Guard behind __cpp_lib_interpolate.
3045         * include/std/numbers: Switch to bits/version.h for
3046         __cpp_lib_math_constants.  Guard header behind that FTM.
3047         * include/std/mutex: Switch to bits/version.h for
3048         __cpp_lib_scoped_lock.
3049         (scoped_Lock): Guard behind __cpp_lib_scoped_lock.
3050         * include/std/memory_resource: Switch to bits/version.h for
3051         __cpp_lib_{polymorphic_allocator,memory_resource}.
3052         (synchronized_pool_resource): Guard behind
3053         __cpp_lib_memory_resource >= 201603L.
3054         (polymorphic_allocator): Guard behind
3055         __cpp_lib_polymorphic_allocator.
3056         * include/std/memory: Switch to bits/version.h for
3057         __cpp_lib_{parallel_algorithm,atomic_value_initialization}.
3058         * include/std/list: Switch to bits/version.h for
3059         __cpp_lib_erase_if.
3060         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3061         * include/std/latch: Switch to bits/version.h for __cpp_lib_latch.
3062         Guard header behind that FTM.
3063         * include/std/iterator: Switch to bits/version.h for
3064         __cpp_lib_null_iterators.
3065         * include/std/iomanip: Switch to bits/version.h for
3066         __cpp_lib_quoted_string_io.
3067         (quoted): Guard behind __cpp_lib_quoted_string_io.
3068         * include/std/functional: Switch to bits/version.h for
3069         __cpp_lib_{invoke{,_r},constexpr_functional,bind_front} and
3070         __cpp_lib_{not_fn,booyer_moore_searcher}.
3071         (invoke): Guard behind __cpp_lib_invoke.
3072         (invoke_r): Guard behind __cpp_lib_invoke_r.
3073         (bind_front): Guard behind __cpp_lib_bind_front.
3074         (not_fn): Guard behind __cpp_lib_not_fn.
3075         (boyer_moore_searcher, boyer_moore_horspool_searcher): Guard
3076         definition behind __cpp_lib_boyer_moore_searcher.
3077         * include/std/forward_list: Switch to bits/version.h for
3078         __cpp_lib_erase_if.
3079         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3080         * include/std/format: Switch to bits/version.h for
3081         __cpp_lib_format.  Guard header behind that FTM.
3082         * include/std/filesystem: Switch to bits/version.h for
3083         __cpp_lib_filesystem.  Guard header behind that FTM.
3084         * include/std/expected: Switch to bits/version.h for
3085         __cpp_lib_expected.  Guard header behind it.
3086         * include/std/execution: Switch to bits/version.h for
3087         __cpp_lib_{execution,parallel_algorithm}.  Guard header behind
3088         either.
3089         * include/std/deque: Switch to bits/version.h for
3090         __cpp_lib_erase_if.
3091         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3092         * include/std/coroutine: Switch to bits/version.h for
3093         __cpp_lib_coroutine.  Guard header behind that FTM.
3094         * include/std/concepts: Switch to bits/version.h for
3095         __cpp_lib_concepts.  Guard header behind that FTM.
3096         * include/std/complex: Switch to bits/version.h for
3097         __cpp_lib_{complex_udls,constexpr_complex}.
3098         (operator""if, operator""i, operator""il): Guard behind
3099         __cpp_lib_complex_udls.
3100         * include/std/charconv: Swtich to bits/version.h for
3101         __cpp_lib_{to_chars,constexpr_charconv}.
3102         * include/std/bitset: Switch to bits/version.h for
3103         __cpp_lib_constexpr_bitset.
3104         * include/std/bit: Switch to bits/version.h for
3105         __cpp_lib_{bit_cast,byteswap,bitops,int_pow2,endian}.
3106         (bit_cast): Guard behind __cpp_lib_bit_cast.
3107         (byteswap): Guard behind __cpp_lib_byteswap.
3108         (rotl, rotr, countl_zero, countl_one, countr_zero, countr_one)
3109         (popcount): Guard behind __cpp_lib_bitops.
3110         (has_single_bit, bit_ceil, bit_floor, bit_width): Guard behind
3111         __cpp_lib_int_pow2.
3112         (endian): Guard behind __cpp_lib_endian.
3113         * include/std/barrier: Switch to bits/version.h for
3114         __cpp_lib_barrier.  Guard header behind that FTM.
3115         * include/std/atomic: Switch to bits/version.h for
3116         __cpp_lib_atomic_{is_always_lock_free,float,ref}
3117         and __cpp_lib_lock_free_type_aliases.
3118         (*::is_always_lock_free): Guard behind
3119         __cpp_lib_atomic_is_always_lock_free.
3120         (atomic<float>): Guard behind __cpp_lib_atomic_float.
3121         (atomic_ref): Guard behind __cpp_lib_atomic_ref.
3122         (atomic_signed_lock_free, atomic_unsigned_lock_free): Guard behind
3123         __cpp_lib_atomic_lock_free_type_aliases.
3124         * include/std/array: Switch to bits/version.h for
3125         __cpp_lib_to_array.
3126         (to_array): Guard behind __cpp_lib_to_array.
3127         * include/std/any: Switch to bits/version.h for __cpp_lib_any.
3128         Guard header behind that FTM.
3129         * include/std/algorithm: Switch to bits/version.h for
3130         __cpp_lib_parallel_algorithm.
3131         * include/c_global/cstddef: Switch to bits/version.h for
3132         __cpp_lib_byte.
3133         (byte): Guard behind __cpp_lib_byte.
3134         * include/c_global/cmath: Switch to bits/version.h for
3135         __cpp_lib_{hypot,interpolate}.
3136         (hypot3): Guard behind __cpp_lib_hypot.
3137         (lerp): Guard behind __cpp_lib_interpolate.
3138         * include/c_compatibility/stdatomic.h: Switch to
3139         bits/stl_version.h for __cpp_lib_atomic.  Guard header behind that
3140         FTM.
3141         * include/bits/utility.h: Switch to bits/version.h for
3142         __cpp_lib_{tuple_element_t,integer_sequence,ranges_zip}.
3143         (tuple_element_t): Guard behind __cpp_lib_tuple_element_t.
3144         (integer_sequence et al): Guard behind __cpp_lib_integer_sequence.
3145         * include/bits/uses_allocator_args.h: Switch to bits/version.h for
3146         __cpp_lib_make_obj_using_allocator.  Guard header behind that FTM.
3147         * include/bits/unordered_map.h: Switch to bits/version.h for
3148         __cpp_lib_unordered_map_try_emplace.
3149         (try_emplace): Guard behind __cpp_lib_unordered_map_try_emplace.
3150         * include/bits/unique_ptr.h: Switch to bits/version.h for
3151         __cpp_lib_{constexpr_memory,make_unique}.
3152         (make_unique): Guard behind __cpp_lib_make_unique.
3153         * include/bits/stl_vector.h: Switch to bits/version.h for
3154         __cpp_lib_constexpr_vector.
3155         * include/bits/stl_uninitialized.h: Switch to bits/version.h for
3156         __cpp_lib_raw_memory_algorithms.
3157         (uninitialized_default_construct)
3158         (uninitialized_default_construct_n, uninitialized_move)
3159         (uninitialized_move_n, uninitialized_value_construct)
3160         (uninitialized_value_construct_n): Guard behind
3161         __cpp_lib_raw_memory_algorithms.
3162         * include/bits/stl_tree.h: Switch to bits/version.h for
3163         __cpp_lib_generic_associative_lookup.
3164         * include/bits/stl_stack.h: Switch to bits/version.h for
3165         __cpp_lib_adaptor_iterator_pair_constructor.
3166         (stack): Guard iterator-pair constructor behind
3167         __cpp_lib_adaptor_iterator_pair_constructor.
3168         * include/bits/stl_queue.h: Switch to bits/version.h for
3169         __cpp_lib_adaptor_iterator_pair_constructor.
3170         (queue): Guard iterator-pair constructor behind
3171         __cpp_lib_adaptor_iterator_pair_constructor.
3172         * include/bits/stl_pair.h: Switch to bits/version.h for
3173         __cpp_lib_{concepts,tuples_by_type}.
3174         (get): Guard type-getting overloads behind
3175         __cpp_lib_tuples_by_type.
3176         * include/bits/stl_map.h: Switch to bits/version.h for
3177         __cpp_lib_map_try_emplace.
3178         (map<>::try_emplace): Guard behind __cpp_lib_map_try_emplace.
3179         * include/bits/stl_list.h: Switch to bits/version.h for
3180         __cpp_lib_list_remove_return_type.
3181         (__remove_return_type, _GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG)
3182         [C++20]: guard behind __cpp_lib_list_remove_return_type instead.
3183         * include/bits/stl_iterator.h: Switch to bits/version.h for
3184         __cpp_lib_{constexpr_iterator,array_constexpr} and
3185         __cpp_lib_{make_reverse_iterator,move_iterator_concept}.
3186         (make_reverse_iterator): Guard behind
3187         __cpp_lib_make_reverse_iterator.
3188         (iterator_concept et al): Guard __cpp_lib_move_iterator_concept
3189         changes behind that FTM.
3190         * include/bits/stl_function.h: Switch to bits/version.h for
3191         __cpp_lib_transparent_operators.
3192         (equal_to, not_equal_to, greater, less, greater_equal)
3193         (less_equal, bit_and, bit_or, bit_xor, bit_not, logical_and)
3194         (logical_or, logical_not, plus, minus, multiplies, divides)
3195         (modulus, negate): Guard '= void' fwdecls behind
3196         __cpp_lib_transparent_operators.
3197         (plus<void>, minus<void>, multiplies<void>, divides<void>)
3198         (modulus<void>, negate<void>, logical_and<void>, logical_or<void>)
3199         (logical_not<void>, bit_and<void>, bit_or<void>, bit_xor<void>)
3200         (equal_to<void>, not_equal_to<void>, greater<void>, less<void>)
3201         (greater_equal<void>, less_equal<void>, bit_not<void>)
3202         (__has_is_transparent): Guard behind
3203         __cpp_lib_transparent_operators.
3204         * include/bits/stl_algobase.h: Switch to bits/version.h for
3205         __cpp_lib_robust_nonmodifying_seq_ops.
3206         (robust equal, mismatch): Guard behind
3207         __cpp_lib_nonmember_container_access.
3208         * include/bits/stl_algo.h: Swtich to bits/version.h for
3209         __cpp_lib_{clamp,sample}.
3210         (clamp): Guard behind __cpp_lib_clamp.
3211         (sample): Guard behind __cpp_lib_sample.
3212         * include/bits/specfun.h: Switch to bits/version.h for
3213         __cpp_lib_math_special_functions and __STDCPP_MATH_SPEC_FUNCS__.
3214         * include/bits/shared_ptr_base.h: Switch to bits/version.h for
3215         __cpp_lib_{smart_ptr_for_overwrite,shared_ptr_arrays}.
3216         (_Sp_overwrite_tag): Guard behind
3217         __cpp_lib_smart_ptr_for_overwrite.
3218         * include/bits/shared_ptr_atomic.h: Switch to bits/version.h for
3219         __cpp_lib_atomic_shared_ptr.
3220         * include/bits/shared_ptr.h: Switch to bits/version.h for
3221         __cpp_lib_{enable_shared_from_this,shared_ptr_weak_type}.
3222         (shared_ptr<T>::weak_type): Guard behind
3223         __cpp_lib_shared_ptr_weak_type.
3224         (enable_shared_from_this<T>::weak_from_this): Guard behind
3225         __cpp_lib_enable_shared_from_this.
3226         * include/bits/ranges_cmp.h: Switch to bits/version.h for
3227         __cpp_lib_ranges.
3228         * include/bits/ranges_algo.h: Switch to bits/version.h for
3229         __cpp_lib_{shift,ranges_{contains,find_last,fold,iota}}.
3230         * include/bits/range_access.h: Switch to bits/version.h for
3231         __cpp_lib_nonmember_container_access
3232         (size, empty, data): Guard behind
3233         __cpp_lib_nonmember_container_access.
3234         (ssize): Guard behind __cpp_lib_ssize.
3235         * include/bits/ptr_traits.h: Switch to bits/version.h. for
3236         __cpp_lib_{constexpr_memory,to_address}.
3237         (to_address): Guard behind __cpp_lib_to_address.
3238         * include/bits/node_handle.h: Switch to bits/version.h for
3239         __cpp_lib_node_extract.  Guard header behind that FTM.
3240         * include/bits/move_only_function.h: Switch to bits/version.h for
3241         __cpp_lib_move_only_function.  Guard header behind that FTM.
3242         * include/bits/move.h: Switch to bits/version.h for
3243         __cpp_lib_addressof_constexpr.
3244         * include/bits/ios_base.h: Switch to bits/version.h for
3245         __cpp_lib_ios_noreplace.
3246         (noreplace): Guard with __cpp_lib_ios_noreplace.
3247         * include/bits/hashtable.h: Switch to bits/version.h for
3248         __cpp_lib_generic_unordered_lookup.
3249         (_M_equal_range_tr, _M_count_tr, _M_find_tr): Guard behind
3250         __cpp_lib_generic_unordered_lookup.
3251         * include/bits/forward_list.h: Switch to bits/version.h for
3252         __cpp_lib_list_remove_return_type.
3253         (__remove_return_type): Guard behind
3254         __cpp_lib_list_remove_return_type.
3255         * include/bits/erase_if.h: Switch to bits/version.h for
3256         __cpp_lib_erase_if.
3257         * include/bits/cow_string.h: Switch to bits/version.h for
3258         __cpp_lib_constexpr_string.
3259         * include/bits/chrono.h: Swtich to bits/version.h for
3260         __cpp_lib_chrono{,_udls}.
3261         (ceil): Guard behind __cpp_lib_chrono.
3262         (operator""ns et al): Guard behind __cpp_lib_chrono_udls.
3263         * include/bits/char_traits.h: Switch to bits/version.h for
3264         __cpp_lib_constexpr_char_traits.
3265         * include/bits/basic_string.h: Switch to bits/version.h for
3266         __cpp_lib_{constexpr_string,string_{resize_and_overwrite,udls}}.
3267         (resize_and_overwrite): Guard behind
3268         __cpp_lib_string_resize_and_overwrite.
3269         (operator""s): Guard behind __cpp_lib_string_udls.
3270         * include/bits/atomic_wait.h: Switch to bits/version.h for
3271         __cpp_lib_atomic_wait.  Guard header behind that FTM.
3272         * include/bits/atomic_base.h: Switch to bits/version.h for
3273         __cpp_lib_atomic_value_initialization and
3274         __cpp_lib_atomic_flag_test.
3275         (atomic_flag::test): Guard behind __cpp_lib_atomic_flag_test,
3276         rather than C++20.
3277         * include/bits/allocator.h: Switch to bits/version.h for
3278         __cpp_lib_incomplete_container_elements.
3279         * include/bits/alloc_traits.h: Switch to using bits/version.h for
3280         __cpp_lib_constexpr_dynamic_alloc and
3281         __cpp_lib_allocator_traits_is_always_equal.
3282         * include/bits/align.h: Switch to bits/version.h for defining
3283         __cpp_lib_assume_aligned.
3284         (assume_aligned): Guard with __cpp_lib_assume_aligned.
3285         * include/bits/algorithmfwd.h: Switch to bits/version.h for
3286         defining __cpp_lib_constexpr_algorithms.
3287         * include/std/stacktrace: Switch to bits/version.h for
3288         __cpp_lib_stacktrace.  Guard header behind that FTM.
3289         * testsuite/23_containers/array/tuple_interface/get_neg.cc:
3290         Update line numbers.
3291
3292 2023-08-16  Arsen Arsenović  <arsen@aarsen.me>
3293
3294         * include/Makefile.am (bits_freestanding): Add version.h.
3295         (allcreated): Add version.h.
3296         (${bits_srcdir}/version.h): New rule.  Regenerates
3297         version.h out of version.{def,tpl}.
3298         * include/Makefile.in: Regenerate.
3299         * include/bits/version.def: New file.  Declares a list of
3300         all feature test macros, their values and their preconditions.
3301         * include/bits/version.tpl: New file.  Turns version.def
3302         into a sequence of #if blocks.
3303         * include/bits/version.h: New file.  Generated from
3304         version.def.
3305         * include/std/version: Replace with a __glibcxx_want_all define
3306         and bits/version.h include.
3307
3308 2023-08-14  Paul Dreik  <gccpatches@pauldreik.se>
3309
3310         PR libstdc++/110860
3311         * include/std/format (__formatter_fp::format): Use frexp instead
3312         of log10.
3313
3314 2023-08-12  Ken Matsui  <kmatsui@gcc.gnu.org>
3315
3316         * include/std/type_traits (true_type): Use __bool_constant
3317         instead.
3318         (false_type): Likewise.
3319         (bool_constant): Likewise.
3320
3321 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3322
3323         PR libstdc++/110990
3324         * include/std/format (_Seq_sink::get): Only call _M_overflow if
3325         its precondition is met.
3326         (_Iter_sink::_M_finish): Likewise.
3327         (_Iter_sink<C, ContigIter>::_M_overflow): Only switch to the
3328         internal buffer after running out of space.
3329         (_Iter_sink<C, ContigIter>::_M_finish): Do not use _M_overflow.
3330         (_Counting_sink::count): Likewise.
3331         * testsuite/std/format/functions/format_to_n.cc: Check cases
3332         where the output fits into the buffer.
3333
3334 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3335
3336         PR libstdc++/104167
3337         * include/bits/chrono_io.h (operator|=, operator|): Add noexcept
3338         to _ChronoParts operators.
3339         (from_stream, parse): Define new functions.
3340         (__detail::_Parse, __detail::_Parser): New class templates.
3341         * include/std/chrono (__cpp_lib_chrono): Define to 201907L for
3342         C++20.
3343         * include/std/version (__cpp_lib_chrono): Likewise.
3344         * testsuite/20_util/duration/arithmetic/constexpr_c++17.cc:
3345         Adjust expected value of feature test macro.
3346         * testsuite/20_util/duration/io.cc: Test parsing.
3347         * testsuite/std/time/clock/file/io.cc: Likewise.
3348         * testsuite/std/time/clock/gps/io.cc: Likewise.
3349         * testsuite/std/time/clock/system/io.cc: Likewise.
3350         * testsuite/std/time/clock/tai/io.cc: Likewise.
3351         * testsuite/std/time/clock/utc/io.cc: Likewise.
3352         * testsuite/std/time/day/io.cc: Likewise.
3353         * testsuite/std/time/month/io.cc: Likewise.
3354         * testsuite/std/time/month_day/io.cc: Likewise.
3355         * testsuite/std/time/weekday/io.cc: Likewise.
3356         * testsuite/std/time/year/io.cc: Likewise.
3357         * testsuite/std/time/year_month/io.cc: Likewise.
3358         * testsuite/std/time/year_month_day/io.cc: Likewise.
3359         * testsuite/std/time/syn_c++20.cc: Check value of macro and for
3360         the existence of parse and from_stream in namespace chrono.
3361         * testsuite/std/time/clock/local/io.cc: New test.
3362         * testsuite/std/time/parse.cc: New test.
3363
3364 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3365
3366         PR libstdc++/110860
3367         * include/std/format (__formatter_fp::format): Do not call log10
3368         with zero values.
3369
3370 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3371
3372         * python/libstdcxx/v6/printers.py (StdChronoCalendarPrinter):
3373         Check for out-of-range month an weekday indices.
3374         * testsuite/libstdc++-prettyprinters/chrono.cc: Check invalid
3375         month and weekday values.
3376
3377 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3378
3379         * include/bits/stl_iterator.h (__clamped_iter_cat_t): Remove.
3380
3381 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
3382
3383         PR libstdc++/110974
3384         * include/std/format (_Spec::_S_parse_width_or_precision): Check
3385         for empty range before dereferencing iterator.
3386         * testsuite/std/format/string.cc: Check for expected exception.
3387         Fix expected exception message in test_pr110862() and actually
3388         call it.
3389
3390 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
3391
3392         PR libstdc++/110968
3393         * include/std/format (__formatter_fp::format): Check return
3394         value of _M_localize.
3395         * testsuite/std/format/functions/format.cc: Check classic
3396         locale.
3397
3398 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
3399
3400         PR libstdc++/110970
3401         * include/bits/stl_iterator.h (__detail::__move_iter_cat): Use
3402         __iter_category_t.
3403         (iterator_traits<common_iterator<I, S>>::_S_iter_cat): Likewise.
3404         (__detail::__basic_const_iterator_iter_cat): Likewise.
3405         * include/bits/stl_iterator_base_types.h (__iterator_category_t):
3406         Rename to __iter_category_t.
3407
3408 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3409
3410         * include/bits/chrono.h (duration_cast): Do not use braces
3411         around statements for C++11 constexpr rules.
3412         * include/bits/stl_algobase.h (__lg): Rewrite as a single
3413         statement for C++11 constexpr rules.
3414         * include/experimental/bits/fs_path.h (path::string): Use
3415         _GLIBCXX17_CONSTEXPR not _GLIBCXX_CONSTEXPR for 'if constexpr'.
3416         * include/std/charconv (__to_chars_8): Initialize variable for
3417         C++17 constexpr rules.
3418
3419 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3420
3421         * include/bits/list.tcc (list::sort(Cmp)): Fix -Wsign-compare
3422         warning for loop condition.
3423
3424 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3425
3426         * include/std/complex: Add diagnostic pragma for clang.
3427
3428 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3429
3430         * include/bits/shared_ptr_atomic.h (atomic): Change class-head
3431         to struct.
3432         * include/bits/stl_tree.h (_Rb_tree_merge_helper): Change
3433         class-head to struct in friend declaration.
3434         * include/std/chrono (tzdb_list::_Node): Likewise.
3435         * include/std/future (_Task_state_base, _Task_state): Likewise.
3436         * include/std/scoped_allocator (__inner_type_impl): Likewise.
3437         * include/std/valarray (_BinClos, _SClos, _GClos, _IClos)
3438         (_ValFunClos, _RefFunClos): Change class-head to struct.
3439
3440 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3441
3442         * include/bits/alloc_traits.h (allocate): Add [[maybe_unused]]
3443         attribute.
3444         * include/bits/regex_executor.tcc: Remove name of unused
3445         parameter.
3446         * include/bits/shared_ptr_atomic.h (atomic_is_lock_free):
3447         Likewise.
3448         * include/bits/stl_uninitialized.h: Likewise.
3449         * include/bits/streambuf_iterator.h (operator==): Likewise.
3450         * include/bits/uses_allocator.h: Likewise.
3451         * include/c_global/cmath (isfinite, isinf, isnan): Likewise.
3452         * include/std/chrono (zoned_time): Likewise.
3453         * include/std/future (__future_base::_S_allocate_result):
3454         Likewise.
3455         (packaged_task): Likewise.
3456         * include/std/optional (_Optional_payload_base): Likewise.
3457         * include/std/scoped_allocator (__inner_type_impl): Likewise.
3458         * include/std/tuple (_Tuple_impl): Likewise.
3459
3460 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3461
3462         * include/bits/new_allocator.h (__new_allocator): Define copy
3463         assignment operator as defaulted.
3464         * include/std/complex (complex<float>, complex<double>)
3465         (complex<long double>): Define copy constructor as defaulted.
3466
3467 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3468
3469         * include/std/format: Fix some warnings.
3470         (__format::__write(Ctx&, basic_string_view<CharT>)): Remove
3471         unused function template.
3472
3473 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
3474
3475         PR libstdc++/110860
3476         * include/std/format (__formatter_fp::format): Do not use
3477         __builtin_abs and __builtin_log10 with arbitrary floating-point
3478         types.
3479
3480 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
3481
3482         PR libstdc++/110917
3483         * include/std/format (__format::_Iter_sink<CharT, OutIter>):
3484         Constrain partial specialization for contiguous iterators to
3485         require the value type to be CharT.
3486         * testsuite/std/format/functions/format_to.cc: New test.
3487
3488 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
3489
3490         PR libstdc++/110862
3491         * include/std/format (_Scanner::_M_on_replacement_field):
3492         Check for expected '}' before incrementing iterator.
3493         * testsuite/std/format/string.cc: Check "{0:{0}" format string.
3494
3495 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
3496
3497         * configure: Regenerate.
3498
3499 2023-08-07  Alan Modra  <amodra@gmail.com>
3500
3501         * configure: Regenerate.
3502
3503 2023-08-07  Alexander von Gluck IV  <kallisti5@unixzen.com>
3504
3505         * configure: Regenerate.
3506
3507 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
3508
3509         * configure: Regenerate.
3510
3511 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
3512
3513         * configure: Regenerate.
3514
3515 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
3516
3517         * configure: Regenerate.
3518
3519 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
3520
3521         * configure: Regenerate.
3522
3523 2023-08-06  François Dumont  <fdumont@gcc.gnu.org>
3524
3525         * config/abi/pre/gnu-versioned-namespace.ver: Add __cxa_call_terminate
3526         symbol export.
3527
3528 2023-07-30  François Dumont  <fdumont@gcc.gnu.org>
3529
3530         * src/c++11/compatibility-ldbl-facets-aliases.h: Replace #define with
3531         proper #error.
3532         * src/c++11/locale-inst-monetary.h: Likewise.
3533         * src/c++11/locale-inst-numeric.h: Likewise.
3534
3535 2023-07-27  Jonathan Wakely  <jwakely@redhat.com>
3536
3537         PR libstdc++/108046
3538         * include/std/format (__formatter_fp::format): Ensure __expc is
3539         always set for all presentation types. Set __z correctly for
3540         zero precision.
3541         * testsuite/std/format/functions/format.cc: Check problem cases.
3542
3543 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
3544
3545         PR libstdc++/110807
3546         * testsuite/23_containers/vector/bool/110807.cc: Require c++11.
3547
3548 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
3549
3550         PR libstdc++/110807
3551         * include/bits/stl_bvector.h (vector(const vector&)): Access
3552         iterators before allocating.
3553         * include/bits/vector.tcc (vector<bool>::_M_insert_range):
3554         Likewise.
3555         * testsuite/23_containers/vector/bool/110807.cc: New test.
3556
3557 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
3558
3559         * include/bits/algorithmfwd.h (random_shuffle): Add deprecated
3560         attribute.
3561         * include/bits/stl_algo.h (random_shuffle): Correct comments.
3562         * testsuite/25_algorithms/random_shuffle/1.cc: Disable
3563         deprecated warnings.
3564         * testsuite/25_algorithms/random_shuffle/59603.cc: Likewise.
3565         * testsuite/25_algorithms/random_shuffle/moveable.cc: Likewise.
3566         * testsuite/25_algorithms/random_shuffle/deprecated.cc: New
3567         test.
3568
3569 2023-07-26  Nathaniel Shead  <nathanieloshead@gmail.com>
3570
3571         * testsuite/25_algorithms/equal/constexpr_neg.cc: Update diagnostic
3572         locations.
3573         * testsuite/26_numerics/gcd/105844.cc: Likewise.
3574         * testsuite/26_numerics/lcm/105844.cc: Likewise.
3575
3576 2023-07-24  Deev Patel  <pateldeev@nevada.unr.edu>
3577
3578         * include/std/format (_Formatting_scanner::_M_on_chars): Add
3579         missing constexpr specifier.
3580         (_Formatting_scanner::_M_format_arg): Likewise.
3581
3582 2023-07-24  Jonathan Wakely  <jwakely@redhat.com>
3583
3584         PR libstdc++/110653
3585         * include/bits/basic_string.h [!HAVE_STOF] (stof): Do not
3586         throw an exception for zero result.
3587         [HAVE_BROKEN_STRTOLD] (stold): Do not use strtold.
3588
3589 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3590
3591         PR libstdc++/110077
3592         * src/c++17/floating_from_chars.cc (from_chars): Only define
3593         _Float128 overload when using __strfromf128.
3594
3595 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3596
3597         PR libstdc++/110593
3598         * include/bits/chrono.h (duration): Improve static assert
3599         messages.
3600         (__is_ratio): Move to ...
3601         * include/std/ratio (__is_ratio): ... here.
3602         (__is_ratio_v): New variable template and partial
3603         specialization.
3604         (__are_both_ratios): New function template.
3605         (__ratio_multiply, ratio_equal, ratio_less, __ratio_add):
3606         Add static assertion.
3607         * testsuite/20_util/ratio/requirements/type_constraints.cc:
3608         New test.
3609         * testsuite/20_util/duration/requirements/typedefs_neg1.cc:
3610         Adjust expected error.
3611         * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
3612         Likewise.
3613
3614 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3615
3616         * include/bits/chrono_io.h (__formatter_chrono::_M_format):
3617         Do not set __is_neg for hh_mm_ss before calling
3618         _M_format_to_ostream. Change __print_sign lambda to only check
3619         __is_neg for durations and hh_mm_ss types.
3620         (__formatter_chrono::_M_format_to_ostream): Only check __is_neg
3621         for duration types.
3622         * testsuite/std/time/hh_mm_ss/io.cc: Check negative values.
3623
3624 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3625
3626         PR libstdc++/110719
3627         * include/bits/chrono_io.h (__formatter_chrono::_S_floor_seconds):
3628         Handle duration and hh_mm_ss.
3629         * testsuite/20_util/duration/io.cc: Check locale-specific
3630         formats.
3631         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
3632
3633 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3634
3635         * include/std/format (__write_padded): Initialize first element
3636         of array to avoid a -Wmaybe-uninitialized warning.
3637
3638 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3639
3640         PR libstdc++/110719
3641         * include/bits/chrono_io.h (__formatter_chrono::_M_parse): Fix
3642         allowed modifiers for %z and %Z. Fix -Wparentheses and
3643         -Wnarrowing warnings.
3644         (__formatter_chrono::_M_format): Call new functions for %d, %e,
3645         %H, %I, %m and %M.
3646         (__formatter_chrono::_M_c): Use _S_floor_seconds to remove
3647         subsecond precision.
3648         (__formatter_chrono::_M_C_y_Y): Use _M_locale_fmt to handle
3649         modifiers.
3650         (__formatter_chrono::_M_e): Replace with _M_d_e and use
3651         _M_locale_fmt.
3652         (__formatter_chrono::_M_I): Replace with _M_H_I and use
3653         _M_locale_fmt.
3654         (__formatter_chrono::_M_m): New function.
3655         (__formatter_chrono::_M_M): New function.
3656         (__formatter_chrono::_M_r): Use _M_locale_fmt.
3657         (__formatter_chrono::_M_S): Likewise.
3658         (__formatter_chrono::_M_u_w): Likewise.
3659         (__formatter_chrono::_M_U_V_W): Likewise.
3660         (__formatter_chrono::_M_X): Use _S_floor_seconds.
3661         (__formatter_chrono::_M_Z): Fix untested branch for wchar_t.
3662         (__formatter_chrono::_S_altnum): Remove function.
3663         (__formatter_chrono::_S_dd_zero_fill): Remove function.
3664         (__formatter_chrono::_S_floor_seconds): New function.
3665         (__formatter_chrono::_M_locale_fmt): New function.
3666         * testsuite/std/time/clock/system/io.cc: Adjust expected output
3667         for locale-specific formats and check modified formats.
3668         * testsuite/std/time/clock/utc/io.cc: Likewise.
3669         * testsuite/std/time/zoned_time/io.cc: New test.
3670
3671 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3672
3673         PR libstdc++/110708
3674         * include/bits/chrono_io.h (__formatter_chrono::_M_parse): Only
3675         allow a single modifier.
3676         * testsuite/std/time/format.cc: Check multiple modifiers.
3677
3678 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3679
3680         PR libstdc++/110653
3681         * testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc:
3682         Remove dg-require-string-conversions.
3683         * testsuite/21_strings/basic_string/numeric_conversions/char/stof.cc:
3684         Likewise.
3685         * testsuite/21_strings/basic_string/numeric_conversions/char/stoi.cc:
3686         Likewise.
3687         * testsuite/21_strings/basic_string/numeric_conversions/char/stol.cc:
3688         Likewise.
3689         * testsuite/21_strings/basic_string/numeric_conversions/char/stoul.cc:
3690         Likewise.
3691
3692 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3693
3694         PR libstdc++/110653
3695         * include/bits/basic_string.h [!_GLIBCXX_HAVE_STRTOF] (stof):
3696         Define in terms of std::stod.
3697
3698 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3699
3700         PR libstdc++/110653
3701         * include/bits/basic_string.h [_GLIBCXX_HAVE_STRTOF] (stof):
3702         Define.
3703         [_GLIBCXX_HAVE_STRTOLD] (stold): Define.
3704         * include/c_global/cstdlib [_GLIBCXX_HAVE_STRTOF] (strtof):
3705         Declare in namespace std.
3706         [_GLIBCXX_HAVE_STRTOLD] (strtold): Likewise.
3707
3708 2023-07-13  Jonathan Wakely  <jwakely@redhat.com>
3709
3710         PR libstdc++/110653
3711         * include/bits/basic_string.h (stoi, stol, stoul, stod): Do not
3712         depend on _GLIBCXX_USE_C99_STDLIB.
3713         [__LONG_WIDTH__ == __LONG_LONG_WIDTH__] (stoll, stoull): Define
3714         in terms of stol and stoul respectively.
3715         [__DBL_MANT_DIG__ == __LDBL_MANT_DIG__] (stold): Define in terms
3716         of stod.
3717
3718 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
3719
3720         PR libstdc++/95048
3721         * testsuite/27_io/filesystem/path/construct/95048.cc: Check
3722         conversions to wide strings.
3723         * testsuite/experimental/filesystem/path/construct/95048.cc:
3724         Likewise.
3725
3726 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
3727
3728         * config/io/basic_file_stdio.cc: Define LFS macros.
3729         (__basic_file<char>::open): Use fopen unconditionally.
3730         (get_file_offset): Use lseek unconditionally.
3731         (__basic_file<char>::seekoff): Likewise.
3732         (__basic_file<char>::showmanyc): Use fstat unconditionally.
3733
3734 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
3735
3736         PR libstdc++/110574
3737         * acinclude.m4 (GLIBCXX_CHECK_LFS): Check for fseeko and ftello
3738         and define _GLIBCXX_USE_FSEEKO_FTELLO.
3739         * config.h.in: Regenerate.
3740         * configure: Regenerate.
3741         * config/io/basic_file_stdio.cc (xwrite) [_GLIBCXX_USE_STDIO_PURE]:
3742         Check for fwrite error correctly.
3743         (__basic_file<char>::xsgetn) [_GLIBCXX_USE_STDIO_PURE]: Check for
3744         fread error correctly.
3745         (get_file_offset): New function.
3746         (__basic_file<char>::seekoff) [_GLIBCXX_USE_STDIO_PURE]: Use
3747         fseeko if available. Use get_file_offset instead of return value
3748         of fseek.
3749         (__basic_file<char>::showmanyc): Use get_file_offset.
3750
3751 2023-07-12  Ken Matsui  <kmatsui@gcc.gnu.org>
3752
3753         * include/std/type_traits (__make_unsigned_selector): Use
3754         __is_enum built-in trait.
3755         (__make_signed_selector): Likewise.
3756         (__underlying_type_impl): Likewise.
3757
3758 2023-07-06  Tianqiang Shuai  <1101282468@qq.com>
3759
3760         * config/io/basic_file_stdio.cc (xwrite) [USE_STDIO_PURE]: Fix
3761         first argument.
3762
3763 2023-07-06  Jonathan Wakely  <jwakely@redhat.com>
3764
3765         PR libstdc++/110574
3766         * doc/xml/manual/configure.xml: Describe stdio_pure argument to
3767         --enable-cstdio.
3768         * doc/html/manual/configure.html: Regenerate.
3769
3770 2023-07-05  Thomas Rodgers  <trodgers@redhat.com>
3771
3772         * testsuite/25_algorithms/pstl/alg_sorting/set.cc: Delete
3773         file.
3774         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
3775         New file.
3776         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
3777         Likewise.
3778         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
3779         Likewise.
3780         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
3781         Likewise.
3782         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h:
3783         Likewise.
3784
3785 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
3786
3787         * testsuite/23_containers/forward_list/debug/iterator1_neg.cc:
3788         Skip as UNSUPPORTED for C++98 mode.
3789         * testsuite/23_containers/forward_list/debug/iterator3_neg.cc:
3790         Likewise.
3791
3792 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
3793
3794         PR libstdc++/110542
3795         * include/bits/stl_uninitialized.h (__uninitialized_default_n):
3796         Do not use std::fill_n during constant evaluation.
3797
3798 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
3799
3800         * include/bits/vector.tcc (_M_default_append): Replace try-block
3801         with RAII types.
3802
3803 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
3804
3805         * include/bits/iterator_concepts.h (projected): Add typename.
3806
3807 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
3808
3809         * testsuite/27_io/headers/iosfwd/synopsis.cc: Make wsyncbuf and
3810         wosyncstream depend on _GLIBCXX_USE_CXX11_ABI.
3811
3812 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
3813
3814         * include/pstl/pstl_config.h (_PSTL_PRAGMA_SIMD_SCAN,
3815         _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN, _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN):
3816         Define to OpenMP 5.0 pragmas even for GCC 10.0+.
3817         (_PSTL_UDS_PRESENT): Define to 1 for GCC 10.0+.
3818
3819 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
3820
3821         * include/bits/alloc_traits.h (_Destroy): Qualify call.
3822         * include/bits/stl_construct.h (_Destroy, _Destroy_n): Likewise.
3823         * testsuite/23_containers/vector/cons/destroy-adl.cc: New test.
3824
3825 2023-07-03  Iain Sandoe  <iain@sandoe.co.uk>
3826
3827         * testsuite/lib/libstdc++.exp: Remove additional flag handled
3828         by Darwin specs.
3829
3830 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
3831
3832         PR libstdc++/110432
3833         * acinclude.m4 (GLIBCXX_CHECK_INIT_PRIORITY): New.
3834         * config.h.in: Regenerate.
3835         * configure: Regenerate.
3836         * configure.ac: Use GLIBCXX_CHECK_INIT_PRIORITY.
3837         * include/std/iostream: Use new autoconf macro as well as
3838         __has_attribute.
3839         * src/c++98/ios_base_init.h: Use new autoconf macro instead of
3840         __has_attribute.
3841
3842 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
3843
3844         * src/c++11/random.cc (random_device::_M_init): Add maybe_unused
3845         attribute.
3846
3847 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
3848
3849         PR libstdc++/105081
3850         * src/c++11/random.cc (random_device::_M_init): Throw
3851         std::system_error when the requested device is a valid token but
3852         not available at runtime.
3853
3854 2023-06-30  Hans-Peter Nilsson  <hp@axis.com>
3855
3856         PR libstdc++/108672
3857         * include/pstl/unseq_backend_simd.h (__simd_or): Re-apply using
3858         __INT32_TYPE__ instead of int32_t.
3859
3860 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
3861
3862         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define consistently
3863         with USE_ATOMIC_LIST_HEAD.
3864         (list_mutex): Replace global object with function. Use local
3865         static object when std::mutex constructor isn't constexpr.
3866
3867 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
3868
3869         PR libstdc++/110462
3870         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check that
3871         copy_file_range can be called with loff_t* arguments.
3872         * configure: Regenerate.
3873         * src/filesystem/ops-common.h (copy_file_copy_file_range):
3874         Use loff_t for offsets.
3875
3876 2023-06-29  Tom Tromey  <tromey@adacore.com>
3877
3878         * testsuite/lib/gdb-test.exp (gdb-test): Relax type-printer
3879         regexp.
3880
3881 2023-06-28  Jan Hubicka  <jh@suse.cz>
3882
3883         PR middle-end/109849
3884         * include/bits/c++config (std::__terminate): Mark cold.
3885         * include/bits/functexcept.h: Mark everything as cold.
3886         * libsupc++/exception: Mark terminate and unexpected as cold.
3887
3888 2023-06-26  Thomas Rodgers  <trodgers@redhat.com>
3889
3890         * include/pstl/algorithm_fwd.h: Synchronize with upstream.
3891         * include/pstl/algorithm_impl.h: Likewise.
3892         * include/pstl/execution_defs.h: Likewise.
3893         * include/pstl/execution_impl.h: Likewise.
3894         * include/pstl/glue_algorithm_impl.h: Likewise.
3895         * include/pstl/glue_execution_defs.h: Likewise.
3896         * include/pstl/glue_memory_impl.h: Likewise.
3897         * include/pstl/glue_numeric_impl.h: Likewise.
3898         * include/pstl/memory_impl.h: Likewise.
3899         * include/pstl/numeric_fwd.h: Likewise.
3900         * include/pstl/numeric_impl.h: Likewise.
3901         * include/pstl/parallel_backend.h: Likewise.
3902         * include/pstl/parallel_backend_serial.h: Likewise.
3903         * include/pstl/parallel_backend_tbb.h: Likewise.
3904         * include/pstl/parallel_impl.h: Likewise.
3905         * include/pstl/pstl_config.h: Likewise.
3906         * include/pstl/unseq_backend_simd.h: Likewise.
3907         * include/pstl/utils.h: Likewise.
3908         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc:
3909         Likewise.
3910         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc:
3911         Likewise.
3912         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc:
3913         Likewise.
3914         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc:
3915         Likewise.
3916         * testsuite/25_algorithms/pstl/alg_merge/merge.cc: Likewise.
3917         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc:
3918         Likewise.
3919         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc:
3920         Likewise.
3921         * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc:
3922         Likewise.
3923         * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc:
3924         Likewise.
3925         * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc:
3926         Likewise.
3927         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc:
3928         Likewise.
3929         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc:
3930         Likewise.
3931         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc:
3932         Likewise.
3933         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc:
3934         Likewise.
3935         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc:
3936         Likewise.
3937         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc:
3938         Likewise.
3939         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc:
3940         Likewise.
3941         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc:
3942         Likewise.
3943         * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc:
3944         Likewise.
3945         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc:
3946         Likewise.
3947         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc:
3948         Likewise.
3949         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc:
3950         Likewise.
3951         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc:
3952         Likewise.
3953         * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc:
3954         Likewise.
3955         * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc:
3956         Likewise.
3957         * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc:
3958         Likewise.
3959         * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc:
3960         Likewise.
3961         * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc:
3962         Likewise.
3963         * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc:
3964         Likewise.
3965         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc:
3966         Likewise.
3967         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc:
3968         Likewise.
3969         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc:
3970         Likewise.
3971         * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc:
3972         Likewise.
3973         * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc:
3974         Likewise.
3975         * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc:
3976         Likewise.
3977         * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc:
3978         Likewise.
3979         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc:
3980         Likewise.
3981         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc:
3982         Likewise.
3983         * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc:
3984         Likewise.
3985         * testsuite/25_algorithms/pstl/alg_sorting/includes.cc:
3986         Likewise.
3987         * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc:
3988         Likewise.
3989         * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc:
3990         Likewise.
3991         * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc:
3992         Likewise.
3993         * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc:
3994         Likewise.
3995         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc:
3996         Likewise.
3997         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc:
3998         Likewise.
3999         * testsuite/25_algorithms/pstl/alg_sorting/set.cc:
4000         Likewise.
4001         * testsuite/25_algorithms/pstl/alg_sorting/sort.cc:
4002         Likewise.
4003         * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc:
4004         Likewise.
4005         * testsuite/26_numerics/pstl/numeric_ops/reduce.cc:
4006         Likewise.
4007         * testsuite/26_numerics/pstl/numeric_ops/scan.cc:
4008         Likewise.
4009         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
4010         Likewise.
4011         * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc:
4012         Likewise.
4013         * testsuite/util/pstl/test_utils.h:
4014         Likewise.
4015
4016 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4017
4018         PR libstdc++/110239
4019         * include/std/format (__format::__parse_integer): Fix buffer
4020         overflow for wide chars.
4021         (formatter<const void*, C>::format): Cast to uintptr_t instead
4022         of uint64_t.
4023         * testsuite/std/format/string.cc: Test too-large widths.
4024
4025 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4026
4027         * include/bits/iterator_concepts.h (projected): Replace class
4028         template with alias template denoting an ADL-proofed helper.
4029         (incremental_traits<projected<Iter, Proj>>): Remove.
4030         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
4031         New test.
4032
4033 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4034
4035         * include/debug/helper_functions.h (__get_distance)
4036         (__check_singular, __valid_range_aux, __valid_range): Qualify
4037         calls to disable ADL.
4038         (__check_singular_aux(const _Safe_iterator_base*)): Declare
4039         overload that was previously found via ADL.
4040
4041 2023-06-23  Jonathan Wakely  <jwakely@redhat.com>
4042
4043         * include/bits/vector.tcc (_M_realloc_insert): Replace try-block
4044         with RAII types.
4045
4046 2023-06-20  Jonathan Wakely  <jwakely@redhat.com>
4047
4048         * include/std/array (to_array(T(&)[N])): Remove redundant
4049         condition.
4050         (to_array(T(&&)[N])): Remove redundant std::move.
4051
4052 2023-06-16  Alexandre Oliva  <oliva@adacore.com>
4053
4054         * testsuite/20_util/from_chars/4.cc: Skip long double on
4055         aarch64-rtems.
4056
4057 2023-06-16  Joel Brobecker  <brobecker@adacore.com>
4058
4059         * configure.ac ["x${with_newlib}" = "xyes"]: Define
4060         HAVE_HYPOTF.  Add compile-checks for various long double
4061         math functions as well.
4062         * configure: Regenerate.
4063
4064 2023-06-14  Jonny Grant  <jg@jguk.org>
4065
4066         * doc/xml/manual/extensions.xml: Remove demangle exception
4067         description and include.
4068         * doc/html/manual/ext_demangling.html: Regenerate.
4069
4070 2023-06-10  Hans-Peter Nilsson  <hp@axis.com>
4071
4072         * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc (main)
4073         [! SIMULATOR_TEST]: Also exclude running test05.
4074         * testsuite/27_io/basic_istream/ignore/char/94749.cc: Ditto.
4075
4076 2023-06-09  Ken Matsui  <kmatsui@cs.washington.edu>
4077
4078         * include/std/type_traits: Use using instead of typedef
4079
4080 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4081
4082         PR libstdc++/110077
4083         * src/c++17/floating_from_chars.cc (from_chars) <_Float128>:
4084         Only define if _Float128 and long double have different
4085         representations.
4086
4087 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4088
4089         PR libstdc++/100285
4090         * include/experimental/internet [IPPROTO_TCP || IPPROTO_UDP]
4091         (basic_endpoint, basic_resolver_entry, resolver_base)
4092         (basic_resolver_results, basic_resolver): Only define if the tcp
4093         or udp protocols will be defined.
4094
4095 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4096
4097         * acinclude.m4 (libtool_VERSION): Update to 6.0.33.
4098         * configure: Regenerate.
4099         * doc/xml/manual/abi.xml: Add libstdc++.so.6.0.33.
4100         * doc/html/manual/abi.html: Regenerate.
4101
4102 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4103
4104         PR libstdc++/110149
4105         * include/std/format (formatter<const void*, charT>::parse):
4106         Only alow 0 and P for C++26 and non-strict modes.
4107         (formatter<const void*, charT>::format): Use toupper for P
4108         type, and insert zero-fill characters for 0 option.
4109         * testsuite/std/format/functions/format.cc: Check pointer
4110         formatting. Only check P2510R3 extensions conditionally.
4111         * testsuite/std/format/parse_ctx.cc: Only check P2510R3
4112         extensions conditionally.
4113
4114 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4115
4116         PR libstdc++/110167
4117         * include/std/array (to_array): Initialize arrays of trivial
4118         types using memcpy. For non-trivial types, use lambda
4119         expressions instead of a separate helper function.
4120         (__to_array): Remove.
4121         * testsuite/23_containers/array/creation/110167.cc: New test.
4122
4123 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4124
4125         * testsuite/23_containers/deque/modifiers/emplace/52799.cc:
4126         Removed.
4127         * testsuite/23_containers/deque/modifiers/emplace/const_iterator.cc:
4128         Removed.
4129         * testsuite/23_containers/list/modifiers/emplace/52799.cc:
4130         Removed.
4131         * testsuite/23_containers/list/modifiers/emplace/const_iterator.cc:
4132         Removed.
4133         * testsuite/23_containers/vector/modifiers/emplace/52799.cc:
4134         Removed.
4135         * testsuite/23_containers/vector/modifiers/emplace/const_iterator.cc:
4136         Removed.
4137         * testsuite/23_containers/deque/modifiers/emplace/1.cc: New
4138         test.
4139         * testsuite/23_containers/list/modifiers/emplace/1.cc: New
4140         test.
4141         * testsuite/23_containers/vector/modifiers/emplace/1.cc: New
4142         test.
4143
4144 2023-06-07  Jakub Jelinek  <jakub@redhat.com>
4145
4146         PR libstdc++/110145
4147         * testsuite/20_util/to_chars/double.cc: Include <cfloat>.
4148         (double_to_chars_test_cases,
4149         double_scientific_precision_to_chars_test_cases_2,
4150         double_fixed_precision_to_chars_test_cases_2): #if out 1e126, 4.91e-6
4151         and 5.547e-6 tests if FLT_EVAL_METHOD is negative or larger than 1.
4152         Add unconditional tests with corresponding double constants
4153         0x1.7a2ecc414a03fp+418, 0x1.4981285e98e79p-18 and
4154         0x1.7440bbff418b9p-18.
4155
4156 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4157
4158         * testsuite/util/testsuite_abi.cc (check_version): Re-add
4159         CXXABI_1.3.14.
4160
4161 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4162
4163         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
4164         Require effective target exceptions_enabled instead of using
4165         dg-skip-if.
4166         * testsuite/23_containers/vector/capacity/constexpr.cc: Expect
4167         shrink_to_fit() to be a no-op without exceptions enabled.
4168         * testsuite/23_containers/vector/capacity/shrink_to_fit.cc:
4169         Likewise.
4170         * testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
4171         Require effective target exceptions_enabled.
4172         * testsuite/ext/malloc_allocator/check_allocate_max_size.cc:
4173         Likewise.
4174         * testsuite/ext/mt_allocator/check_allocate_max_size.cc:
4175         Likewise.
4176         * testsuite/ext/new_allocator/check_allocate_max_size.cc:
4177         Likewise.
4178         * testsuite/ext/pool_allocator/check_allocate_max_size.cc:
4179         Likewise.
4180         * testsuite/ext/throw_allocator/check_allocate_max_size.cc:
4181         Likewise.
4182
4183 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4184
4185         * testsuite/20_util/duration/cons/2.cc: Use values that aren't
4186         affected by rounding.
4187         * testsuite/20_util/from_chars/5.cc: Cast arithmetic result to
4188         double before comparing for equality.
4189         * testsuite/20_util/from_chars/6.cc: Likewise.
4190         * testsuite/20_util/variant/86874.cc: Use values that aren't
4191         affected by rounding.
4192         * testsuite/25_algorithms/lower_bound/partitioned.cc: Compare to
4193         original value instead of to floating-point-literal.
4194         * testsuite/26_numerics/random/discrete_distribution/cons/range.cc:
4195         Cast arithmetic result to double before comparing for equality.
4196         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/range.cc:
4197         Likewise.
4198         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/range.cc:
4199         Likewise.
4200         * testsuite/26_numerics/valarray/transcend.cc (eq): Check that
4201         the absolute difference is less than 0.01 instead of comparing
4202         to two decimal places.
4203         * testsuite/27_io/basic_istream/extractors_arithmetic/char/01.cc:
4204         Cast arithmetic result to double before comparing for equality.
4205         * testsuite/27_io/basic_istream/extractors_arithmetic/char/09.cc:
4206         Likewise.
4207         * testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc:
4208         Likewise.
4209         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc:
4210         Likewise.
4211         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc:
4212         Likewise.
4213         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/10.cc:
4214         Likewise.
4215         * testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
4216
4217 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4218
4219         Revert:
4220         2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4221
4222         * configure.ac: Use AS_IF.
4223         * configure: Regenerate.
4224
4225 2023-06-07  Thomas Schwinge  <thomas@codesourcery.com>
4226
4227         * testsuite/lib/prune.exp (libstdc++-dg-prune): Support
4228         'UNSUPPORTED: [...]: exception handling disabled'.
4229
4230 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4231
4232         * testsuite/util/testsuite_abi.cc (check_version): Add
4233         CXXABI_1.3.15 symver and make it the latestp. Remove
4234         GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
4235
4236 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4237             Jakub Jelinek  <jakub@redhat.com>
4238
4239         PR libstdc++/104772
4240         * include/std/limits: (numeric_limits<__float128>): Define
4241         for __STRICT_ANSI__ as well.
4242         * testsuite/18_support/numeric_limits/128bit.cc: Remove
4243         check for __STRICT_ANSI__.
4244
4245 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4246
4247         * configure.ac: Use AS_IF.
4248         * configure: Regenerate.
4249
4250 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
4251
4252         PR libstdc++/109822
4253         * include/experimental/bits/simd_builtin.h (_S_store): Rewrite
4254         to avoid casts to other vector types. Implement store as
4255         succession of power-of-2 sized memcpy to avoid PR90424.
4256
4257 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
4258
4259         PR libstdc++/110054
4260         * include/experimental/bits/simd_builtin.h (_S_masked_store):
4261         Call into deduced ABI's SimdImpl after conversion.
4262         * include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
4263         Don't use _mm_maskmoveu_si128. Use the generic fall-back
4264         implementation. Also fix masked stores without SSE2, which
4265         were not doing anything before.
4266
4267 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
4268
4269         * include/experimental/bits/simd.h (__bit_cast): Use
4270         __gnu__::__vector_size__ instead of gnu::vector_size.
4271
4272 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4273
4274         PR libstdc++/110139
4275         * include/std/array (__array_traits<T, 0>::operator T*()): Make
4276         conversion operator explicit.
4277         (array::front): Use size_type as subscript operand.
4278         (array::data): Use static_cast to make conversion explicit.
4279         * testsuite/23_containers/array/element_access/110139.cc: New
4280         test.
4281
4282 2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
4283
4284         * include/bits/locale_classes.tcc: Remove check for
4285         codecvt<char8_t, char, mbstate_t> facet.
4286
4287 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4288
4289         * src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
4290         close-on-exec flag on file descriptors.
4291
4292 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4293
4294         PR libstdc++/108178
4295         * src/filesystem/ops-common.h (do_copy_file): Check for empty
4296         files by trying to read a character.
4297         * testsuite/27_io/filesystem/operations/copy_file_108178.cc:
4298         New test.
4299
4300 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
4301
4302         * acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
4303         * config.h.in: Regenerate.
4304         * configure: Regenerate.
4305         * src/filesystem/ops-common.h (copy_file_copy_file_range):
4306         Define new function.
4307         (do_copy_file): Use it.
4308
4309 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
4310
4311         * acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
4312         * config.h.in: Regenerate.
4313         * configure: Regenerate.
4314         * src/filesystem/ops-common.h (copy_file_sendfile): Define new
4315         function for sendfile logic. Loop to support large files. Skip
4316         zero-length files.
4317         (do_copy_file): Use it.
4318
4319 2023-06-04  Jason Merrill  <jason@redhat.com>
4320
4321         PR c++/97720
4322         * libsupc++/eh_call.cc (__cxa_call_terminate): Take void*.
4323         * config/abi/pre/gnu.ver: Add it.
4324
4325 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
4326
4327         * include/parallel/algobase.h: Include <parallel/search.h>.
4328
4329 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4330
4331         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
4332         Add const to equality operator.
4333
4334 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4335
4336         * include/std/expected (expected::and_then, expected::or_else)
4337         (expected::transform_error): Use _M_val and _M_unex instead of
4338         calling value() and error(), as per LWG 3938.
4339         (expected::transform): Likewise. Remove incorrect std::move
4340         calls from lvalue overloads.
4341         (expected<void, E>::and_then, expected<void, E>::or_else)
4342         (expected<void, E>::transform): Use _M_unex instead of calling
4343         error().
4344         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
4345         and transform, and for std::expected<void, E>.
4346         * testsuite/20_util/expected/lwg3938.cc: New test.
4347
4348 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4349
4350         PR libstdc++/110060
4351         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
4352         Remove.
4353         (vector::size, vector::capacity): Remove calls to _M_invariant.
4354         * include/bits/vector.tcc (vector::_M_fill_assign): Add
4355         optimization hint to reallocating path.
4356         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
4357         Likewise.
4358         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
4359         to...
4360         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
4361         ...here. Check assign(FwdIter, FwdIter) too.
4362         * testsuite/23_containers/vector/types/1.cc: Revert addition
4363         of -Wno-stringop-overread option.
4364
4365 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4366
4367         * doc/xml/manual/evolution.xml: Document removal of implicit
4368         allocator rebinding extensions in strict mode and for C++20.
4369         * doc/html/*: Regenerate.
4370
4371 2023-06-01  Jason Merrill  <jason@redhat.com>
4372
4373         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
4374         handlers in the cleanup phase.
4375
4376 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
4377
4378         PR libstdc++/110050
4379         * include/experimental/bits/simd.h (__vectorized_sizeof): With
4380         __have_neon_a32 only single-precision float works (in addition
4381         to integers).
4382
4383 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
4384
4385         * include/bits/stl_algo.h
4386         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
4387         * include/bits/stl_algobase.h: ...here.
4388         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
4389         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
4390         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
4391         Move...
4392         * include/parallel/algobase.h: ...here.
4393         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
4394         includes. Include <bits/stl_algobase.h>.
4395
4396 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4397
4398         PR libstdc++/109818
4399         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
4400         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
4401         * config.h.in: Regenerate.
4402         * configure: Regenerate.
4403         * include/c_global/cmath (float_t, double_t): Guard using new
4404         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
4405
4406 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4407
4408         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
4409         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
4410         for C99 rounding functions to here.
4411         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
4412         functions from here.
4413         * config.h.in: Regenerate.
4414         * configure: Regenerate.
4415         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
4416         of _GLIBCXX_USE_C99_MATH_TR1.
4417         * include/bits/random.tcc: Likewise.
4418         * include/c_compatibility/math.h: Likewise.
4419         * include/c_global/cmath: Likewise.
4420         * include/ext/random: Likewise.
4421         * include/ext/random.tcc: Likewise.
4422         * include/std/complex: Likewise.
4423         * testsuite/20_util/from_chars/4.cc: Likewise.
4424         * testsuite/20_util/from_chars/8.cc: Likewise.
4425         * testsuite/26_numerics/complex/proj.cc: Likewise.
4426         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
4427         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
4428         Likewise.
4429         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
4430         Likewise.
4431         * testsuite/util/testsuite_random.h: Likewise.
4432
4433 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4434
4435         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
4436         function.
4437         (vector::size(), vector::capacity()): Call _M_invariant().
4438         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
4439         * testsuite/23_containers/vector/types/1.cc: Add suppression for
4440         false positive warning (PR110060).
4441
4442 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4443
4444         PR libstdc++/109921
4445         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
4446         defined before trying to use _Float128.
4447
4448 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4449
4450         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
4451         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
4452         * configure: Regenerate.
4453
4454 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4455
4456         * include/bits/unique_lock.h: Include <bits/error_constants.h>
4457         here for std::errc constants.
4458         * include/std/mutex: Do not include <bits/error_constants.h> and
4459         <exception> here.
4460
4461 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4462
4463         * configure.ac: Replace use of -o operator for test.
4464         * configure: Regenerate.
4465
4466 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4467
4468         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
4469         noexcept to all constructors except the default constructor.
4470         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
4471         (scoped_allocator_adaptor::outer_allocator): Likewise.
4472         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
4473
4474 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4475
4476         PR libstdc++/104772
4477         * include/std/limits (numeric_limits<__float128>): Define.
4478         * testsuite/18_support/numeric_limits/128bit.cc: New test.
4479
4480 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4481
4482         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
4483         msp430 to all 16-bit targets.
4484         * configure: Regenerate.
4485
4486 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4487
4488         PR libstdc++/109921
4489         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
4490         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
4491         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
4492         binary64.
4493         (from_chars(const char*, const char*, double&, chars_format)):
4494         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
4495         (from_chars(const char*, const char*, _Float128&, chars_format))
4496         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
4497         defined, otherwise parse a long double and convert to _Float128.
4498
4499 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4500
4501         PR libstdc++/109922
4502         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
4503         Add deprecated attribute to non-standard overload.
4504         * doc/xml/manual/evolution.xml: Document deprecation.
4505         * doc/html/*: Regenerate.
4506         * testsuite/27_io/manipulators/standard/char/1.cc: Add
4507         dg-warning for expected deprecated warning.
4508         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
4509         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
4510         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
4511
4512 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
4513
4514         * testsuite/20_util/from_chars/4.cc: Skip long double test06
4515         on x86_64-vxworks.
4516         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
4517         x86_64-vxworks.
4518
4519 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
4520
4521         PR libstdc++/109822
4522         * include/experimental/bits/simd.h (to_native): Use int NTTP
4523         as specified in PTS2.
4524         (to_compatible): Likewise. Add missing tag to call mask
4525         generator ctor.
4526         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
4527         test.
4528
4529 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
4530
4531         * testsuite/experimental/simd/tests/integer_operators.cc:
4532         Compute expected value differently to avoid getting turned into
4533         a vector shift.
4534
4535 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
4536
4537         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
4538         double <-> (u)long conversion tests conditional on sizeof(long
4539         double) and sizeof(long).
4540
4541 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
4542
4543         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
4544         Negative __y is UB, so prefer signed compare.
4545
4546 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
4547
4548         * testsuite/util/testsuite_allocator.h (PointerBase): Add
4549         relational operators.
4550
4551 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
4552
4553         * testsuite/20_util/to_chars/long_double.cc: Expect execution
4554         fail on x86-vxworks.
4555
4556 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
4557
4558         PR libstdc++/109949
4559         * include/experimental/bits/simd.h (__intrinsic_type): If
4560         __ALTIVEC__ is defined, map gnu::vector_size types to their
4561         corresponding __vector T types without losing unsignedness of
4562         integer types. Also prefer long long over long.
4563         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
4564         object to the expected unsigned vector type.
4565
4566 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
4567
4568         PR libstdc++/109261
4569         * include/experimental/bits/simd.h (__intrinsic_type):
4570         Specialize __intrinsic_type<double, 8> and
4571         __intrinsic_type<double, 16> in any case, but provide the member
4572         type only with __aarch64__.
4573
4574 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
4575
4576         PR libstdc++/109261
4577         * include/experimental/bits/simd_neon.h (_S_reduce): Add
4578         constexpr and make NEON implementation conditional on
4579         not __builtin_is_constant_evaluated.
4580
4581 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
4582
4583         PR libstdc++/109261
4584         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
4585         Avoid vector builtin subscripting in constant expressions.
4586         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
4587         (const_where_expression, where_expression, where)
4588         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
4589         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
4590         internal APIs).
4591         * include/experimental/bits/simd_builtin.h (__vector_permute)
4592         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
4593         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
4594         (_MaskImplBuiltin::_S_store): Add constexpr.
4595         (_CommonImplBuiltin::_S_store_bool_array)
4596         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
4597         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
4598         constant_evaluated case.
4599         * include/experimental/bits/simd_fixed_size.h
4600         (_S_masked_load): Reword comment.
4601         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
4602         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
4603         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
4604         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
4605         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
4606         constexpr.
4607         (_SimdTuple::operator[], _M_set): Add constexpr and add
4608         constant_evaluated case.
4609         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
4610         * include/experimental/bits/simd_scalar.h: Add constexpr.
4611         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
4612         constexpr and add constant_evaluated case.
4613         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
4614         (_S_less_equal): Value-initialize to satisfy constexpr
4615         evaluation.
4616         (_MaskImplX86::_S_load): Add constant_evaluated case.
4617         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
4618         case. Value-initialize local variables.
4619         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
4620         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
4621         case.
4622         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
4623         test.
4624
4625 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
4626
4627         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
4628         __infn into #ifdef'ed block.
4629         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
4630         constants only when used.
4631         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
4632         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
4633         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
4634         Likewise.
4635         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
4636         Move totest and expect1 into #ifdef'ed block.
4637
4638 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
4639
4640         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
4641         * doc/html/manual/strings.html: Regenerate.
4642
4643 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
4644
4645         PR libstdc++/109883
4646         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
4647
4648 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
4649
4650         PR libstdc++/109883
4651         * include/c_global/cmath (atan2, fmod, pow): Move
4652         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
4653         __gnu_cxx::__bfloat16_t overloads.
4654         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
4655         Likewise.
4656         (fma): Move __gnu_cxx::__promote_3 using template after
4657         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
4658
4659 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4660
4661         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
4662         checks for float_round_style and float_denorm_style.
4663
4664 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4665
4666         * include/bits/c++config: Add system_header pragma.
4667
4668 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4669
4670         * include/std/expected (expected::and_then, expected::or_else)
4671         (expected::transform, expected::transform_error): Fix exception
4672         specifications as per LWG 3877.
4673         (expected<void, E>::and_then, expected<void, E>::transform):
4674         Likewise.
4675         * testsuite/20_util/expected/lwg3877.cc: New test.
4676
4677 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
4678
4679         * include/std/type_traits: Use __bool_constant instead of
4680         integral_constant.
4681
4682 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4683
4684         * configure: Regenerate.
4685
4686 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4687
4688         PR libstdc++/109741
4689         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
4690         * config.h.in: Regenerate.
4691         * configure: Regenerate.
4692         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
4693         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
4694         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
4695         instead of hardcoded 64.
4696
4697 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4698
4699         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
4700         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
4701         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
4702         * config.h.in: Regenerate.
4703         * configure: Regenerate.
4704         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
4705         instead of _GLIBCXX_USE_C99_FENV_TR1.
4706         * include/c_global/cfenv: Likewise.
4707         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
4708         of _GLIBCXX_USE_C99_CTYPE_TR1.
4709
4710 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4711
4712         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
4713         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
4714         <inttypes.h> features in C++11 mode and define
4715         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
4716         * config.h.in: Regenerate.
4717         * configure: Regenerate.
4718         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
4719         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
4720         of _GLIBCXX_USE_C99_STDINT_TR1.
4721         * include/c_compatibility/inttypes.h: Check
4722         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
4723         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
4724         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
4725         * include/c_compatibility/stdatomic.h: Check
4726         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
4727         * include/c_compatibility/stdint.h: Likewise.
4728         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
4729         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
4730         _GLIBCXX_USE_C99_INTTYPES_TR1 and
4731         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
4732         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
4733         instead of _GLIBCXX_USE_C99_STDINT_TR1.
4734         * include/std/atomic: Likewise.
4735         * src/c++11/cow-stdexcept.cc: Likewise.
4736         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
4737         Likewise.
4738         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
4739         Likewise.
4740
4741 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4742
4743         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
4744         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
4745         * config.h.in: Regenerate.
4746         * configure: Regenerate.
4747         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
4748         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
4749         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
4750
4751 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4752
4753         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
4754         assertion to ensure expected exception is throw.
4755
4756 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4757
4758         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
4759         printer for chrono::zoned_time for cx11 ABI and tzdb effective
4760         target.
4761
4762 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4763
4764         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
4765         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
4766         * configure: Regenerate.
4767
4768 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
4769
4770         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
4771         to check for nan, nanf, and nanl.
4772         * configure: Regenerate.
4773
4774 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
4775
4776         * include/bits/char_traits.h (char_traits<char16_t>): Do not
4777         depend on _GLIBCXX_USE_C99_STDINT_TR1.
4778         (char_traits<char32_t>): Likewise.
4779         * include/experimental/source_location: Likewise.
4780
4781 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
4782
4783         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
4784         (atomic_int_least16_t, atomic_uint_least16_t)
4785         (atomic_int_least32_t, atomic_uint_least32_t)
4786         (atomic_int_least64_t, atomic_uint_least64_t)
4787         (atomic_int_fast16_t, atomic_uint_fast16_t)
4788         (atomic_int_fast32_t, atomic_uint_fast32_t)
4789         (atomic_int_fast64_t, atomic_uint_fast64_t)
4790         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
4791         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
4792
4793 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
4794
4795         * include/bits/algorithmfwd.h (shuffle): Do not depend on
4796         _GLIBCXX_USE_C99_STDINT_TR1.
4797         * include/bits/ranges_algo.h (shuffle): Likewise.
4798         * include/bits/stl_algo.h (shuffle): Likewise.
4799         * include/ext/random: Likewise.
4800         * include/ext/throw_allocator.h (random_condition): Likewise.
4801         * include/std/random: Likewise.
4802         * src/c++11/cow-string-inst.cc: Likewise.
4803         * src/c++11/random.cc: Likewise.
4804
4805 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
4806
4807         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
4808         _GLIBCXX_USE_C99_STDINT_TR1.
4809
4810 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
4811
4812         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
4813         on _GLIBCXX_USE_C99_STDINT_TR1.
4814
4815 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
4816
4817         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
4818         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
4819         * testsuite/experimental/string_view/typedefs.cc: Likewise.
4820
4821 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
4822
4823         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
4824         (auto_locale, auto_ferounding): New class types.
4825         (from_chars_impl): Use auto_locale and auto_ferounding.
4826
4827 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
4828
4829         PR libstdc++/109772
4830         * include/std/chrono (hh_mm_ss::__fits): Remove variable
4831         template.
4832         (hh_mm_ss::__subseconds): Remove __fits from constraints.
4833         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
4834         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
4835         hh_mm_ss<duration<int, std::pico>>.
4836
4837 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
4838
4839         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
4840         * include/bits/basic_ios.h: Add static assertion checking
4841         traits_type::value_type.
4842         * include/bits/basic_string.h: Likewise. Do not rebind
4843         allocator, and add static assertion checking its value_type.
4844         (basic_string::_Alloc_traits_impl): Remove class template.
4845         (basic_string::_S_allocate): New static member function.
4846         (basic_string::assign): Use _S_allocate.
4847         * include/bits/basic_string.tcc (basic_string::_M_create)
4848         (basic_string::reserve, basic_string::_M_replace): Likewise.
4849         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
4850         Disable for C++20 and later.
4851         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
4852         Likweise.
4853
4854 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
4855
4856         PR libstdc++/109758
4857         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
4858         and negative zero correctly.
4859         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
4860
4861 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
4862
4863         * include/bits/hashtable_policy.h
4864         (_NodeBuilder<>::_S_build): Use __node_ptr.
4865         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
4866         (_AllocNode<>): Likewise.
4867         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
4868         to call std::is_permutation in the non-unique key implementation.
4869         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
4870         _M_begin() once.
4871         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
4872         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
4873         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
4874         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
4875         const_iterator.
4876         (_Hashtable<>::find): Likewise.
4877         (_Hashtable<>::_M_emplace): Likewise.
4878         (_Hashtable<>::_M_insert_unique): Likewise.
4879
4880 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
4881
4882         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
4883         Print floating-point durations correctly.
4884         (StdChronoTimePointPrinter): Support printing only the value,
4885         not the type name. Uncomment handling for known clocks.
4886         (StdChronoZonedTimePrinter): Remove type names from output.
4887         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
4888         (StdChronoTimeZonePrinter): Add equals sign to output.
4889         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
4890
4891 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
4892
4893         * testsuite/20_util/from_chars/4.cc: Skip long double test06
4894         on aarch64-vxworks.
4895         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
4896         aarch64-vxworks.
4897
4898 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
4899
4900         * doc/xml/manual/abi.xml (abi.versioning.history): Document
4901         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
4902         * doc/html/manual/abi.html: Regenerate.
4903
4904 2023-05-04  Florian Weimer  <fweimer@redhat.com>
4905
4906         * doc/xml/manual/abi.xml (abi.versioning.history): Add
4907         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
4908         libgcc_s.
4909
4910 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
4911
4912         * src/c++17/floating_from_chars.cc
4913         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
4914         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
4915         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
4916         _ZSt8to_charsPcS_u9__ieee128.
4917         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
4918         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
4919         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
4920         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
4921         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
4922
4923 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
4924
4925         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
4926         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
4927         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
4928         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
4929         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
4930         versions.
4931         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
4932         file.
4933
4934 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
4935             Jonathan Wakely  <jwakely@redhat.com>
4936
4937         PR libstdc++/109703
4938         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
4939         Initialize _M_string_length.
4940
4941 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
4942
4943         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
4944         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
4945         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
4946         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
4947         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
4948         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
4949         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
4950         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
4951
4952 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
4953
4954         PR libstdc++/109694
4955         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
4956         -Wattribute-alias.
4957
4958 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
4959
4960         * include/bits/random.h (gamma_distribution): Add to the right
4961         doxygen group.
4962         (discrete_distribution, piecewise_constant_distribution)
4963         (piecewise_linear_distribution): Create a new doxygen group and
4964         fix the incomplete doxygen comments.
4965         * include/bits/uniform_int_dist.h (uniform_int_distribution):
4966         Add to doxygen group.
4967
4968 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
4969
4970         * include/bits/uses_allocator.h: Add missing @file comment.
4971         * include/bits/regex.tcc: Remove stray doxygen comments.
4972         * include/experimental/memory_resource: Likewise.
4973         * include/std/bit: Tweak doxygen @cond comments.
4974         * include/std/expected: Likewise.
4975         * include/std/numbers: Likewise.
4976
4977 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
4978
4979         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
4980         from header paths.
4981
4982 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
4983
4984         * include/bits/move.h: Simplify opening/closing namespace std.
4985
4986 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
4987
4988         PR libstdc++/108969
4989         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
4990         _ZSt21ios_base_library_initv.
4991         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
4992         symver and make it the latestp.
4993         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
4994         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
4995         * include/std/iostream: If init_priority attribute is supported
4996         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
4997         symbol into the object.
4998         * configure: Regenerated.
4999
5000 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5001
5002         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
5003         * include/std/format: Likewise.
5004
5005 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5006
5007         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
5008         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
5009
5010 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5011
5012         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
5013         HTML docs.
5014         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
5015         from doxygen docs.
5016         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
5017         Likewise.
5018         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
5019         Likewise.
5020         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
5021         Likewise.
5022         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
5023         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
5024         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
5025         (_DEFINE_BINARY_OPERATOR): Likewise.
5026
5027 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5028
5029         * include/bits/memory_resource.h: Improve doxygen comments.
5030         * include/std/memory_resource: Likewise.
5031
5032 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5033
5034         PR libstdc++/40380
5035         * include/bits/basic_string.h: Improve doxygen comments.
5036         * include/bits/cow_string.h: Likewise.
5037         * include/bits/forward_list.h: Likewise.
5038         * include/bits/fs_dir.h: Likewise.
5039         * include/bits/fs_path.h: Likewise.
5040         * include/bits/quoted_string.h: Likewise.
5041         * include/bits/stl_bvector.h: Likewise.
5042         * include/bits/stl_map.h: Likewise.
5043         * include/bits/stl_multimap.h: Likewise.
5044         * include/bits/stl_multiset.h: Likewise.
5045         * include/bits/stl_set.h: Likewise.
5046         * include/bits/stl_vector.h: Likewise.
5047         * include/bits/unordered_map.h: Likewise.
5048         * include/bits/unordered_set.h: Likewise.
5049         * include/std/filesystem: Likewise.
5050         * include/std/iomanip: Likewise.
5051
5052 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5053
5054         PR libstdc++/105081
5055         * src/c++11/random.cc (__throw_syserr): New function.
5056         (random_device::_M_init, random_device::_M_init_pretr1): Use new
5057         function for bad tokens.
5058         (random_device::_M_getval): Use new function for read errors.
5059         * testsuite/util/testsuite_random.h (random_device_available):
5060         Change catch handler to use std::system_error.
5061
5062 2023-04-24  Patrick Palka  <ppalka@redhat.com>
5063
5064         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
5065         Fix propagation of sign bit.
5066         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
5067         non-standard 'signed typedef-name'.  Add some compile-time tests
5068         for right-shifting a negative __max_diff_type value by more than
5069         one.
5070
5071 2023-04-19  Patrick Palka  <ppalka@redhat.com>
5072             Jonathan Wakely  <jwakely@redhat.com>
5073
5074         PR c++/100157
5075         * include/bits/utility.h (_Nth_type): Conditionally define in
5076         terms of __type_pack_element if available.
5077         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
5078         additional errors from the new built-in.
5079
5080 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
5081
5082         Revert:
5083         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5084
5085         PR libstdc++/108969
5086         * src/Makefile.am: Move globals_io.cc to here.
5087         * src/Makefile.in: Regenerate.
5088         * src/c++98/Makefile.am: Remove globals_io.cc from here.
5089         * src/c++98/Makefile.in: Regenerate.
5090         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
5091         symbol name and then export with GLIBCXX_3.4.31 symver.
5092         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
5093         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
5094         Regenerate.
5095         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
5096         Regenerate.
5097         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
5098         Regenerate.
5099         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
5100         Regenerate.
5101         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
5102         Regenerate.
5103         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
5104         Regenerate.
5105         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
5106         Regenerate.
5107         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
5108         Regenerate.
5109         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
5110
5111 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
5112
5113         Revert:
5114         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5115
5116         PR libstdc++/108969
5117         * config/abi/pre/gnu.ver: Fix preprocessor condition.
5118
5119 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5120
5121         * doc/xml/manual/extensions.xml: Fix example to declare and
5122         qualify std::free, and use NULL instead of 0.
5123         * doc/html/manual/ext_demangling.html: Regenerate.
5124         * libsupc++/cxxabi.h: Adjust doxygen comments.
5125
5126 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5127
5128         PR libstdc++/108969
5129         * config/abi/pre/gnu.ver: Fix preprocessor condition.
5130
5131 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5132
5133         PR libstdc++/108969
5134         * src/Makefile.am: Move globals_io.cc to here.
5135         * src/Makefile.in: Regenerate.
5136         * src/c++98/Makefile.am: Remove globals_io.cc from here.
5137         * src/c++98/Makefile.in: Regenerate.
5138         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
5139         symbol name and then export with GLIBCXX_3.4.31 symver.
5140         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
5141         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
5142         Regenerate.
5143         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
5144         Regenerate.
5145         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
5146         Regenerate.
5147         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
5148         Regenerate.
5149         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
5150         Regenerate.
5151         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
5152         Regenerate.
5153         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
5154         Regenerate.
5155         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
5156         Regenerate.
5157         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
5158
5159 2023-04-18  Patrick Palka  <ppalka@redhat.com>
5160
5161         PR libstdc++/108827
5162         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
5163         for C++23.
5164         * include/std/ranges (range_adaptor_closure): Define for C++23.
5165         * include/std/version (__cpp_lib_ranges): Bump value for
5166         C++23.
5167         * testsuite/std/ranges/version_c++23.cc: Bump expected value
5168         of __cpp_lib_ranges.
5169         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
5170
5171 2023-04-18  Patrick Palka  <ppalka@redhat.com>
5172
5173         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
5174         Define for C++23.
5175         (__cpp_lib_ranges_iota): Likewise.
5176         (__cpp_lib_ranges_find_last): Likewise.
5177         (__cpp_lib_fold): Rename to ...
5178         (__cpp_lib_ranges_fold): ... this.
5179         * include/std/version: As above.
5180         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
5181         renaming __cpp_lib_fold.
5182         * testsuite/std/ranges/version_c++23.cc: Verify values
5183         of the above feature-test macros.
5184
5185 2023-04-18  Patrick Palka  <ppalka@redhat.com>
5186
5187         PR libstdc++/109525
5188         * include/std/ranges (views::_AsConst::operator()): Add
5189         missing const to constant_range test.
5190         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
5191         Improve formatting.  Adjust expected type of v2.
5192         (test03): New test.
5193
5194 2023-04-14  Patrick Palka  <ppalka@redhat.com>
5195
5196         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
5197         (const_sentinel_t): Likewise.
5198         (range_const_reference_t): Likewise.
5199         (constant_range): Likewise.
5200         (__cust_access::__possibly_const_range): Likewise, replacing ...
5201         (__cust_access::__as_const): ... this.
5202         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
5203         (__cust_access::_CEnd::operator()): Likewise.
5204         (__cust_access::_CRBegin::operator()): Likewise.
5205         (__cust_access::_CREnd::operator()): Likewise.
5206         (__cust_access::_CData::operator()): Likewise.
5207         * include/bits/ranges_util.h (ranges::__detail::__different_from):
5208         Make it an alias of std::__detail::__different_from.
5209         (view_interface::cbegin): Define for C++23.
5210         (view_interface::cend): Likewise.
5211         * include/bits/stl_iterator.h (__detail::__different_from): Define.
5212         (iter_const_reference_t): Define for C++23.
5213         (__detail::__constant_iterator): Likewise.
5214         (__detail::__is_const_iterator): Likewise.
5215         (__detail::__not_a_const_iterator): Likewise.
5216         (__detail::__iter_const_rvalue_reference_t): Likewise.
5217         (__detail::__basic_const_iter_cat):: Likewise.
5218         (const_iterator): Likewise.
5219         (__detail::__const_sentinel): Likewise.
5220         (const_sentinel): Likewise.
5221         (basic_const_iterator): Likewise.
5222         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
5223         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
5224         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
5225         Likewise.
5226         (make_const_iterator): Define for C++23.
5227         (make_const_sentinel): Likewise.
5228         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
5229         (as_const_view): Likewise.
5230         (enable_borrowed_range<as_const_view>): Likewise.
5231         (views::__detail::__is_ref_view): Likewise.
5232         (views::__detail::__can_is_const_view): Likewise.
5233         (views::_AsConst, views::as_const): Likewise.
5234         * include/std/span (span::const_iterator): Likewise.
5235         (span::const_reverse_iterator): Likewise.
5236         (span::cbegin): Likewise.
5237         (span::cend): Likewise.
5238         (span::crbegin): Likewise.
5239         (span::crend): Likewise.
5240         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
5241         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
5242         behave independently of C++20 vs C++23.
5243         * testsuite/std/ranges/version_c++23.cc: Verify value of
5244         __cpp_lib_ranges_as_const macro.
5245         * testsuite/24_iterators/const_iterator/1.cc: New test.
5246         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
5247
5248 2023-04-14  Patrick Palka  <ppalka@redhat.com>
5249
5250         * include/bits/ranges_base.h (__cust_access::__as_const)
5251         (__cust_access::_CBegin, __cust::cbegin)
5252         (__cust_access::_CEnd, __cust::cend)
5253         (__cust_access::_CRBegin, __cust::crbegin)
5254         (__cust_access::_CREnd, __cust::crend)
5255         (__cust_access::_CData, __cust::cdata): Move down definitions to
5256         shortly after the definition of input_range.
5257
5258 2023-04-14  Patrick Palka  <ppalka@redhat.com>
5259
5260         * include/bits/ranges_algo.h: Include <optional> for C++23.
5261         (__cpp_lib_fold): Define for C++23.
5262         (in_value_result): Likewise.
5263         (__detail::__flipped): Likewise.
5264         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
5265         (__detail::__indirectly_binary_left_foldable): Likewise.
5266         (___detail:__indirectly_binary_right_foldable): Likewise.
5267         (fold_left_with_iter_result): Likewise.
5268         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
5269         (__fold_left_fn, fold_left): Likewise.
5270         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
5271         Likewise.
5272         (__fold_left_first_fn, fold_left_first): Likewise.
5273         (__fold_right_fn, fold_right): Likewise.
5274         (__fold_right_last_fn, fold_right_last): Likewise.
5275         * include/std/version (__cpp_lib_fold): Likewise.
5276         * testsuite/25_algorithms/fold_left/1.cc: New test.
5277         * testsuite/25_algorithms/fold_right/1.cc: New test.
5278
5279 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
5280
5281         * include/std/format (formatter): Add comment to deleted default
5282         constructor of primary template.
5283         (_Checking_scanner): Add static_assert.
5284
5285 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5286
5287         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
5288         * doc/html/*: Regenerate.
5289
5290 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5291
5292         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
5293         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
5294         namespace to avoid clashing with libc struct.
5295         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
5296         Likewise.
5297         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
5298         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
5299         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
5300         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
5301         * testsuite/experimental/synchronized_value.cc: Require gthreads
5302         and add missing option for pthreads targets.
5303
5304 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5305
5306         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
5307         for C++23.
5308         (__detail::__range_with_movable_reference): Likewise.
5309         (enumerate_view): Likewise.
5310         (enumerate_view::_Iterator): Likewise.
5311         (enumerate_view::_Sentinel): Likewise.
5312         (views::__detail::__can_enumerate_view): Likewise.
5313         (views::_Enumerate, views::enumerate): Likewise.
5314         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
5315         * testsuite/std/ranges/version_c++23.cc: Verify value of
5316         __cpp_lib_ranges_enumerate.
5317         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
5318
5319 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5320
5321         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
5322         Propagate _M_trailing_empty in the const-converting constructor
5323         as per LWG 3904.
5324         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
5325         assertion.
5326         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
5327
5328 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5329
5330         * src/c++17/floating_from_chars.cc: Include <algorithm>,
5331         <iterator>, <limits> and <cstdint>.
5332
5333 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5334
5335         PR libstdc++/108291
5336         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
5337         parameter types of the lambda wrapper passed to adjacent_find.
5338         (chunk_by_view::_M_find_prev): Likewise.
5339         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
5340         New tests.
5341
5342 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5343
5344         PR libstdc++/109482
5345         * include/experimental/internet (basic_endpoint::basic_endpoint()):
5346         Ensure that the required union members are active. Only define
5347         as constexpr for C++20 and later.
5348         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
5349         Likewise.
5350         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
5351         check constexpr default constructor for C++20 and later.
5352         * testsuite/experimental/net/internet/endpoint/extensible.cc:
5353         Likewise.
5354
5355 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5356
5357         * src/c++20/tzdata.zi: Import new file from 2023c release.
5358
5359 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5360
5361         * include/precompiled/stdc++.h (C++17): Don't double-include
5362         <charconv>, once with wrong conditions.
5363         * testsuite/18_support/96817.cc: Require hosted.
5364         * testsuite/18_support/bad_exception/59392.cc: Ditto.
5365         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
5366         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
5367         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
5368         Ditto.
5369
5370 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5371
5372         * include/bits/c++config: When __STDC_HOSTED__ is zero,
5373         disable _GLIBCXX_DEBUG and, if it was set, enable
5374         _GLIBCXX_ASSERTIONS.
5375         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
5376         Include <bits/c++config.h> when determining whether debug is
5377         set, in order to inherit the logic from above
5378
5379 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5380
5381         * testsuite/17_intro/versionconflict.cc: New test.
5382         * include/std/version: Allow disabling the system_header pragma
5383         via _GLIBCXX_TESTING_SYSHDR.
5384
5385 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5386
5387         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
5388         Synchronize the definition block with...
5389         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
5390         ... this one here.  Also define the 202202L value, rather than
5391         leaving it up to purely unique_ptr.h, so that the value is
5392         synchronized across all headers.
5393         (__gnu_debug::_Safe_iterator_base): Move into new conditional
5394         block.
5395         * include/std/memory (__cpp_lib_atomic_value_initialization):
5396         Define on freestanding under the same conditions as in
5397         atomic_base.h.
5398         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
5399         Also define on freestanding.
5400         (__cpp_lib_to_chars): Ditto.
5401         (__cpp_lib_gcd): Ditto.
5402         (__cpp_lib_gcd_lcm): Ditto.
5403         (__cpp_lib_raw_memory_algorithms): Ditto.
5404         (__cpp_lib_array_constexpr): Ditto.
5405         (__cpp_lib_nonmember_container_access): Ditto.
5406         (__cpp_lib_clamp): Ditto.
5407         (__cpp_lib_constexpr_char_traits): Ditto.
5408         (__cpp_lib_constexpr_string): Ditto.
5409         (__cpp_lib_sample): Ditto.
5410         (__cpp_lib_lcm): Ditto.
5411         (__cpp_lib_constexpr_iterator): Ditto.
5412         (__cpp_lib_constexpr_char_traits): Ditto.
5413         (__cpp_lib_interpolate): Ditto.
5414         (__cpp_lib_constexpr_utility): Ditto.
5415         (__cpp_lib_shift): Ditto.
5416         (__cpp_lib_ranges): Ditto.
5417         (__cpp_lib_move_iterator_concept): Ditto.
5418         (__cpp_lib_constexpr_numeric): Ditto.
5419         (__cpp_lib_constexpr_functional): Ditto.
5420         (__cpp_lib_constexpr_algorithms): Ditto.
5421         (__cpp_lib_constexpr_tuple): Ditto.
5422         (__cpp_lib_constexpr_memory): Ditto.
5423
5424 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
5425
5426         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
5427         timeout factor on hppa*-*-*.
5428
5429 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
5430
5431         * include/bits/regex.h (sub_match::swap): New function.
5432         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
5433
5434 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
5435
5436         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
5437         example program.
5438         * doc/html/manual/ext_demangling.html: Regenerate.
5439
5440 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
5441
5442         PR tree-optimization/107087
5443         * include/bits/cow_string.h (basic_string::size()): Add
5444         optimizer hint that _S_empty_rep()._M_length is always zero.
5445         (basic_string::length()): Call size().
5446
5447 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
5448
5449         PR libstdc++/109339
5450         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
5451         Add attribute access with access-mode 'none'.
5452         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
5453
5454 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
5455
5456         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
5457         Revert change from member function to data member. Fix for
5458         constant evaluation by detecting which union member is active.
5459         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
5460         flag.
5461
5462 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5463
5464         PR libstdc++/109242
5465         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
5466         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
5467
5468 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5469
5470         * include/experimental/internet (ip::make_address): Implement
5471         missing overload.
5472         (ip::address_v4::broadcast()): Avoid undefined shift.
5473         (ip::basic_endpoint): Fix member functions for constexpr.
5474         (ip::basic_endpoint::_M_is_v6): Replace member function with
5475         data member, adjust member functions using it.
5476         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
5477         content.
5478         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
5479         constexpr checks to work in C++14.
5480         * testsuite/experimental/net/internet/address/v4/creation.cc:
5481         Likewise.
5482         * testsuite/experimental/net/internet/endpoint/cons.cc:
5483         Likewise.
5484         * testsuite/experimental/net/internet/network/v4/cons.cc:
5485         Likewise.
5486         * testsuite/experimental/net/internet/network/v4/members.cc:
5487         Likewise.
5488         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
5489
5490 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5491
5492         * include/std/expected (expected::value() &): Use const lvalue
5493         for unex member passed to bad_expected_access constructor, as
5494         per LWG 3843.
5495
5496 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5497
5498         PR libstdc++/109340
5499         * include/std/expected (expected::transform): Use
5500         std::remove_cv_t instead of std::remove_cvref_t.
5501         (expected::transform_error): Likewise.
5502         (expected<cv void, E>::transform): Likewise.
5503         (expected<cv void, E>::transform_error): Likewise.
5504         * include/std/optional (transform): Use std::remove_cv_t.
5505         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
5506
5507 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5508
5509         * include/std/optional (optional): Adjust static assertion to
5510         reject arrays and functions as well as references.
5511         * testsuite/20_util/optional/requirements_neg.cc: New test.
5512
5513 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5514
5515         PR libstdc++/103387
5516         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
5517         std::use_facet instead of cached _M_num_get facet.
5518         (istream::operator>>(short&)): Likewise.
5519         (istream::operator>>(int&)): Likewise.
5520         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
5521         std::use_facet instead of cached _M_num_put facet.
5522
5523 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5524
5525         * include/bits/char_traits.h (char_traits::copy): Return without
5526         using memcpy if n==0.
5527         (char_traits::assign): Likewise for memset.
5528
5529 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5530
5531         PR libstdc++/109299
5532         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
5533         hint for compiler that local strings fit in the local buffer.
5534
5535 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5536
5537         PR libstdc++/109288
5538         * include/std/chrono (__detail::__get_leap_second_info): Update
5539         expiry date of hardcoded leapseconds list.
5540         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
5541         Likewise.
5542         * src/c++20/tzdata.zi: Import new file from 2023a release.
5543         * testsuite/std/time/time_zone/get_info_local.cc: Only check
5544         transitions for Egypt up to 2014.
5545
5546 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
5547
5548         * include/experimental/bits/simd.h (is_simd_flag_type): New.
5549         (_IsSimdFlagType): New.
5550         (copy_from, copy_to, load ctors): Constrain _Flags using
5551         _IsSimdFlagType.
5552
5553 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
5554
5555         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
5556         _Base::_S_divides if the optimized _S_divides function is hidden
5557         via the preprocessor.
5558
5559 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
5560
5561         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
5562         warning if size_t is not unsigned long.
5563
5564 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5565
5566         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
5567         Add overload, as per LWG 3893.
5568         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
5569         Check assignment from nullptr.
5570
5571 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5572
5573         * include/std/format (formatter<const charT[N], charT>): Do not
5574         define partial speclialization, as per LWG 3833.
5575         * testsuite/std/format/formatter/requirements.cc: Check it.
5576
5577 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5578
5579         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
5580         as per LWG 3792.
5581         * testsuite/20_util/exchange/constexpr.cc: Check for it.
5582
5583 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5584
5585         * include/std/version (__cpp_lib_format): Define.
5586         * testsuite/std/format/functions/format.cc: Check it.
5587
5588 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5589
5590         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
5591         Pass rvalues to the callback, as now allowed by LWG 3645.
5592         Enforce preconditions on the return value.
5593         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
5594         Adjust.
5595
5596 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5597
5598         * include/std/format: Add a comment noting that the resolution
5599         of LWG 3720 has been applied..
5600
5601 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5602
5603         * include/bits/regex.h (match_results): Add allocator-extended
5604         copy and move constructors, as per LWG 2195.
5605         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
5606
5607 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5608
5609         * include/bits/stream_iterator.h (istream_iterator): Add
5610         constexpr to copy constructor, as per LWG 3600.
5611         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
5612         Check copy construction.
5613
5614 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5615
5616         * include/experimental/bits/simd_x86.h
5617         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
5618         with __RECIPROCAL_MATH__.
5619
5620 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5621
5622         * include/experimental/bits/simd_detail.h: Don't define
5623         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
5624         * include/experimental/bits/simd_x86.h (_S_divides): Remove
5625         check for __clang__.
5626
5627 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5628
5629         * include/experimental/bits/simd_detail.h: Don't declare the
5630         simd API as constexpr with Clang.
5631         * include/experimental/bits/simd_x86.h (__movm): New.
5632         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
5633         and ?:.
5634         (_SimdImplX86::_S_masked_unary): Clang does not implement the
5635         same builtins. Implement the function using __movm, ?:, and -
5636         operators on vector_size types instead.
5637
5638 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5639
5640         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
5641         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
5642
5643 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
5644
5645         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
5646         formatting.
5647
5648 2023-03-20  Marek Polacek  <polacek@redhat.com>
5649
5650         PR c++/109159
5651         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
5652         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
5653         * testsuite/23_containers/span/explicit.cc: Likewise.
5654
5655 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
5656
5657         PR libstdc++/109182
5658         * include/std/expected (expected<void>::expected(in_place_t)):
5659         Remove template-head.
5660
5661 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
5662
5663         PR libstdc++/109165
5664         * testsuite/18_support/coroutines/hash.cc: Use const object
5665         in second call.
5666
5667 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
5668
5669         PR libstdc++/109165
5670         * include/std/coroutine (hash<>::operator()): Add const.
5671         * testsuite/18_support/coroutines/hash.cc: New test.
5672
5673 2023-03-14  Patrick Palka  <ppalka@redhat.com>
5674
5675         PR libstdc++/109111
5676         * include/std/ranges (repeat_view): Remove redundant parentheses
5677         in requires-clause.
5678         (repeat_view::_Iterator): Correct the requires-clause.
5679
5680 2023-03-14  Patrick Palka  <ppalka@redhat.com>
5681
5682         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
5683         Define.
5684         (__cpp_lib_move_iterator_concept): Define for C++20.
5685         (move_iterator::iterator_concept): Strengthen as per P2520R0.
5686         * include/std/version (__cpp_lib_move_iterator_concept): Define
5687         for C++20.
5688         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
5689
5690 2023-03-14  Patrick Palka  <ppalka@redhat.com>
5691
5692         * include/bits/ranges_util.h (view_interface::empty): Add
5693         preferred overloads that use ranges::size when the range is
5694         sized as per LWG 3715.
5695         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
5696
5697 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
5698
5699         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
5700         Only define for C++17 and later.
5701
5702 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
5703
5704         * src/Makefile.am: Add comment about linker script fragments.
5705         * src/Makefile.in: Regenerate.
5706
5707 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
5708
5709         PR libstdc++/62196
5710         * include/bits/mask_array.h (mask_array): Add assertions to
5711         assignment operators.
5712         * include/std/valarray (valarray::operator[](valarray<bool>)):
5713         Add assertions.
5714         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
5715         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
5716         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
5717         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
5718         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
5719         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
5720         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
5721         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
5722         * testsuite/26_numerics/valarray/mask.cc: New test.
5723
5724 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
5725
5726         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
5727         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
5728
5729 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
5730
5731         * doc/Makefile.am: Add comment referring to documentation.
5732         * doc/Makefile.in: Regenerate.
5733
5734 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
5735
5736         * doc/html/*: Regenerate.
5737
5738 2023-03-13  Jonny Grant  <jg@jguk.org>
5739
5740         * doc/xml/faq.xml: Update copyright year.
5741
5742 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
5743
5744         * include/bits/allocator.h: Fix typo in comment.
5745
5746 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
5747
5748         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
5749         if it isn't mangled as DF16b but u6__bf16.
5750
5751 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
5752
5753         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
5754         to https.
5755         * doc/html/manual/documentation_hacking.html: Regenerate.
5756
5757 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
5758
5759         PR libstdc++/109064
5760         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
5761         Remove self-recursion in __init__. Add missing _supports.
5762         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
5763         and unique().
5764
5765 2023-03-09  Patrick Palka  <ppalka@redhat.com>
5766
5767         * include/std/ranges
5768         (cartesian_product_view::_Iterator::_Iterator): Remove
5769         constraint on default constructor as per LWG 3849.
5770         (cartesian_product_view::_Iterator::_M_prev): Adjust position
5771         of _Nm > 0 test as per LWG 3820.
5772         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
5773         checking only on sized cartesian products.
5774         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
5775
5776 2023-03-09  Patrick Palka  <ppalka@redhat.com>
5777
5778         PR libstdc++/109024
5779         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
5780         LWG 3796.
5781         (repeat_view::_M_pred): Likewise.
5782         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
5783         * testsuite/std/ranges/repeat/1.cc (test05): New test.
5784
5785 2023-03-09  Patrick Palka  <ppalka@redhat.com>
5786
5787         PR libstdc++/108362
5788         * include/std/ranges (__detail::__can_single_view): New concept.
5789         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
5790         end of the function declarator.
5791         (__detail::__can_iota_view): New concept.
5792         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
5793         end of the function declarator.
5794         (__detail::__can_istream_view): New concept.
5795         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
5796         end of the function declarator.
5797         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
5798         * testsuite/std/ranges/istream_view.cc (test08): New test.
5799         * testsuite/std/ranges/single_view.cc (test07): New test.
5800
5801 2023-03-09  Patrick Palka  <ppalka@redhat.com>
5802
5803         PR libstdc++/107572
5804         * include/std/ranges (cartesian_product_view::end): When
5805         building the tuple of iterators, avoid calling ranges::begin on
5806         the first range if __empty_tail is false.
5807         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
5808
5809 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
5810
5811         PR libstdc++/108882
5812         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
5813         patterns.
5814
5815 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
5816
5817         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
5818         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
5819         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
5820         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
5821         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
5822
5823 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
5824
5825         PR libstdc++/108882
5826         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
5827         not match symbols in namespace std::__gnu_cxx11_ieee128.
5828         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
5829         std::__gnu_cxx11_ieee128::money_{get,put}.
5830
5831 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
5832
5833         * libsupc++/eh_personality.cc: Fix spelling in comment.
5834
5835 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
5836
5837         * testsuite/30_threads/async/async.cc (test04): Initialize
5838         steady_start, renamed from steady_begin, next to slow_start.
5839         Increase tolerance for final wait.
5840
5841 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
5842
5843         * testsuite/libstdc++-prettyprinters/80276.cc: Add
5844         std::string to debug info.
5845         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
5846
5847 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
5848
5849         PR libstdc++/104852
5850         PR libstdc++/95989
5851         PR libstdc++/52590
5852         * include/bits/std_thread.h (thread::_M_thread_deps): New
5853         static implicitly-inline member function.
5854         (std::thread template ctor): Pass it to _M_start_thread.
5855         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
5856         parameter, force it live on entry.
5857
5858 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
5859
5860         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
5861         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
5862         Likewise.
5863         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
5864         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
5865         Likewise.
5866
5867 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
5868
5869         * include/bits/cow_string.h: Fix typo in comment.
5870
5871 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
5872
5873         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
5874         current time zone cannot be determined.
5875         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
5876         HAVE_TZDB macro and test all members unconditionally.
5877
5878 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
5879
5880         PR libstdc++/108952
5881         * include/bits/uses_allocator_args.h
5882         (uses_allocator_construction_args): Implement LWG 3527.
5883         * testsuite/20_util/pair/astuple/get-2.cc: New test.
5884         * testsuite/20_util/scoped_allocator/108952.cc: New test.
5885         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
5886
5887 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
5888
5889         PR libstdc++/108846
5890         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
5891         Add __assign_one static member function.
5892         (__copy_move<true, false, RA>): Likewise.
5893         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
5894         value.
5895         (__copy_move_backward<IsMove, true, RA>): Likewise.
5896         * testsuite/25_algorithms/copy/108846.cc: New test.
5897         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
5898         * testsuite/25_algorithms/copy_n/108846.cc: New test.
5899         * testsuite/25_algorithms/move/108846.cc: New test.
5900         * testsuite/25_algorithms/move_backward/108846.cc: New test.
5901
5902 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
5903
5904         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
5905         attributes.
5906
5907 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
5908
5909         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
5910         caveat to comment.
5911         * include/bits/basic_string.h (resize_and_overwrite): Add
5912         doxygen comment.
5913
5914 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
5915
5916         * include/experimental/bits/simd.h: Line breaks and indenting
5917         fixed to follow the libstdc++ standard.
5918         * include/experimental/bits/simd_builtin.h: Likewise.
5919         * include/experimental/bits/simd_fixed_size.h: Likewise.
5920         * include/experimental/bits/simd_neon.h: Likewise.
5921         * include/experimental/bits/simd_ppc.h: Likewise.
5922         * include/experimental/bits/simd_scalar.h: Likewise.
5923         * include/experimental/bits/simd_x86.h: Likewise.
5924
5925 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
5926
5927         PR libstdc++/108030
5928         * include/experimental/bits/simd_fixed_size.h
5929         (_SimdImplFixedSize::_S_broadcast): Replace inline with
5930         _GLIBCXX_SIMD_INTRINSIC.
5931         (_SimdImplFixedSize::_S_generate): Likewise.
5932         (_SimdImplFixedSize::_S_load): Likewise.
5933         (_SimdImplFixedSize::_S_masked_load): Likewise.
5934         (_SimdImplFixedSize::_S_store): Likewise.
5935         (_SimdImplFixedSize::_S_masked_store): Likewise.
5936         (_SimdImplFixedSize::_S_min): Likewise.
5937         (_SimdImplFixedSize::_S_max): Likewise.
5938         (_SimdImplFixedSize::_S_complement): Likewise.
5939         (_SimdImplFixedSize::_S_unary_minus): Likewise.
5940         (_SimdImplFixedSize::_S_plus): Likewise.
5941         (_SimdImplFixedSize::_S_minus): Likewise.
5942         (_SimdImplFixedSize::_S_multiplies): Likewise.
5943         (_SimdImplFixedSize::_S_divides): Likewise.
5944         (_SimdImplFixedSize::_S_modulus): Likewise.
5945         (_SimdImplFixedSize::_S_bit_and): Likewise.
5946         (_SimdImplFixedSize::_S_bit_or): Likewise.
5947         (_SimdImplFixedSize::_S_bit_xor): Likewise.
5948         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
5949         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
5950         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
5951         explicit about not always-inline, yet).
5952         (_SimdImplFixedSize::_S_isinf): Likewise.
5953         (_SimdImplFixedSize::_S_isfinite): Likewise.
5954         (_SimdImplFixedSize::_S_isnan): Likewise.
5955         (_SimdImplFixedSize::_S_isnormal): Likewise.
5956         (_SimdImplFixedSize::_S_signbit): Likewise.
5957
5958 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
5959
5960         PR libstdc++/108856
5961         * include/experimental/bits/simd_builtin.h
5962         (_SimdImplBuiltin::_S_masked_unary): More efficient
5963         implementation of masked inc-/decrement for integers and floats
5964         without AVX2.
5965         * include/experimental/bits/simd_x86.h
5966         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
5967         builtins for masked inc-/decrement.
5968
5969 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
5970
5971         * include/experimental/executor (executor): Constrain template
5972         constructors.
5973
5974 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
5975
5976         * include/experimental/internet (basic_endpoint): Add missing
5977         constexpr to comparison operators.
5978         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
5979
5980 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
5981
5982         * include/experimental/internet (network_v4::netmask()): Avoid
5983         undefined shift.
5984         (network_v4::broadcast()): Optimize and fix for targets with
5985         uint_least32_t wider than 32 bits.
5986         (network_v4::to_string(const Allocator&)): Fix for custom
5987         allocators and optimize using to_chars.
5988         (operator==(const network_v4&, const network_v4&)): Add missing
5989         constexpr.
5990         (operator==(const network_v6&, const network_v6&)): Likewise.
5991         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
5992         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
5993
5994 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
5995
5996         * include/experimental/internet (address_4(const bytes_type&)):
5997         Use __builtin_bit_cast if available, otherwise convert to
5998         network byte order.
5999         (address_v4::to_bytes()): Likewise, but convert from network
6000         byte order.
6001         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
6002         incorrect tests. Check for constexpr too.
6003         * testsuite/experimental/net/internet/address/v4/creation.cc:
6004         Likewise.
6005         * testsuite/experimental/net/internet/address/v4/members.cc:
6006         Check that bytes_type is a standard-layout type.
6007
6008 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6009
6010         * include/experimental/internet (address_v4::to_string):
6011         Optimize.
6012         * testsuite/experimental/net/internet/address/v4/members.cc:
6013         Check more addresses.
6014
6015 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6016
6017         * include/ext/aligned_buffer.h (__aligned_buffer): Add
6018         diagnostic pragmas.
6019
6020 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6021
6022         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
6023         before dg-do.
6024
6025 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6026
6027         * testsuite/experimental/simd/tests/reductions.cc: Introduce
6028         max_distance as the type-dependent max error.
6029
6030 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6031
6032         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
6033         int. The actual range of these indexes is very small.
6034
6035 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6036
6037         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
6038         (_S_bit_shift_right): Declare constexpr. The implementation was
6039         already expecting constexpr evaluation.
6040
6041 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6042
6043         PR libstdc++/108030
6044         * include/experimental/bits/simd_detail.h
6045         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
6046         __clang__.
6047
6048 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6049
6050         PR libstdc++/108030
6051         * include/experimental/bits/simd.h (__vector_broadcast):
6052         Implement via __vector_broadcast_impl instead of
6053         __call_with_n_evaluations + 2 lambdas.
6054         (__vector_broadcast_impl): New.
6055
6056 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6057
6058         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
6059         Avoid destruction of the mutex pool.
6060
6061 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6062
6063         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
6064         on vxworks.
6065         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
6066         Likewise.
6067
6068 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6069
6070         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
6071         kernel mode.
6072
6073 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
6074
6075         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
6076
6077 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
6078
6079         * include/experimental/bits/simd.h (__extract_part, split):
6080         Use reserved name for template parameter.
6081
6082 2023-02-20  Andreas Schwab  <schwab@suse.de>
6083
6084         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
6085
6086 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
6087
6088         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
6089         * doc/html/faq.html: Regenerate.
6090
6091 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6092
6093         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
6094         between scalars requires the __bit_cast helper function instead
6095         of simd_bit_cast.
6096
6097 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6098
6099         * include/experimental/bits/simd_x86.h
6100         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
6101         (_SimdImplX86::_S_less_equal): Do not call
6102         __builtin_is_constant_evaluated in constexpr-if.
6103
6104 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6105
6106         * testsuite/experimental/simd/tests/bits/verify.h
6107         (verify::verify): Use %zx for size_t in format string.
6108
6109 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6110
6111         * testsuite/experimental/simd/generate_makefile.sh: Generate and
6112         pre-compile pch.h, which includes all headers that do not depend
6113         on command-line macros.
6114         * testsuite/experimental/simd/tests/bits/main.h: New file.
6115         (iterate_abis, main): Moved from verify.h.
6116         * testsuite/experimental/simd/tests/bits/verify.h
6117         (iterate_abis, main): Moved to main.h.
6118         * testsuite/experimental/simd/tests/bits/conversions.h: Add
6119         include guard.
6120         (genHalfBits): Simplify.
6121         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
6122         guard.
6123         (make_alternating_mask): Moved from mask_loadstore.
6124         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
6125         include guard.
6126         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
6127         * testsuite/experimental/simd/tests/mask_loadstore.cc
6128         (make_mask, make_alternating_mask): Removed.
6129         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
6130         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
6131         Removed.
6132         * testsuite/experimental/simd/tests/abs.cc: Only include
6133         bits/main.h.
6134         Ditto.
6135         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
6136         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
6137         * testsuite/experimental/simd/tests/casts.cc: Ditto.
6138         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
6139         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
6140         * testsuite/experimental/simd/tests/generator.cc: Ditto.
6141         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
6142         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
6143         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
6144         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
6145         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
6146         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
6147         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
6148         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
6149         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
6150         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
6151         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
6152         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
6153         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
6154         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
6155         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
6156         * testsuite/experimental/simd/tests/simd.cc: Ditto.
6157         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
6158         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
6159         * testsuite/experimental/simd/tests/splits.cc: Ditto.
6160         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
6161         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
6162         * testsuite/experimental/simd/tests/where.cc: Ditto.
6163
6164 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6165
6166         * testsuite/experimental/simd/README.md: Document the timeout
6167         and timeout-factor directives. Minor typo fixed.
6168
6169 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6170
6171         PR libstdc++/108030
6172         * include/experimental/bits/simd_detail.h: Define
6173         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
6174         * include/experimental/bits/simd.h: Annotate lambdas with
6175         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
6176         * include/experimental/bits/simd_builtin.h: Ditto.
6177         * include/experimental/bits/simd_converter.h: Ditto.
6178         * include/experimental/bits/simd_fixed_size.h: Ditto.
6179         * include/experimental/bits/simd_math.h: Ditto.
6180         * include/experimental/bits/simd_neon.h: Ditto.
6181         * include/experimental/bits/simd_x86.h: Ditto.
6182
6183 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6184
6185         * include/experimental/bits/simd.h
6186         (_SimdWrapper::_M_is_constprop_none_of)
6187         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
6188         computed result still satisfies __builtin_constant_p.
6189
6190 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6191
6192         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
6193         ellipsis character.
6194
6195 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6196
6197         * include/Makefile.am: Add new header.
6198         * include/Makefile.in: Regenerate.
6199         * include/experimental/synchronized_value: New file.
6200         * testsuite/experimental/synchronized_value.cc: New test.
6201
6202 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6203
6204         * include/experimental/optional: Fix header name in comment.
6205
6206 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6207
6208         * include/std/format (__format::_Arg_store): New class template.
6209         (basic_format_args): Remove nested type _Store and add deduction
6210         guide from _Arg_store.
6211         (basic_format_arg, make_format_args): Adjust.
6212         * testsuite/std/format/arguments/lwg3810.cc: New test.
6213
6214 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6215
6216         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
6217         constraints to constructors and add deleted overloads for the
6218         dangling cases, as per P2255R2.
6219         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
6220         make dangling cases ill-formed.
6221         * testsuite/20_util/pair/dangling_ref.cc: New test.
6222
6223 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6224
6225         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
6226
6227 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6228
6229         * include/ext/throw_allocator.h: Use reserved names for
6230         parameters.
6231
6232 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6233
6234         * testsuite/17_intro/names_pstl.cc: Add space after effective
6235         target name.
6236
6237 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6238
6239         * include/pstl/algorithm_fwd.h (__pattern_search_n)
6240         (__brick_unique_copy, __brick_adjacent_find)
6241         (__brick_generate_n, __pattern_generate_n): Use reserved names
6242         for parameters.
6243         * include/pstl/algorithm_impl.h (__brick_unique_copy)
6244         (__pattern_reverse, __brick_generate_n): Likewise.
6245         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
6246         (__prefer_parallel_tag): Likewise.
6247         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
6248         * include/pstl/glue_numeric_defs.h (adjacent_difference):
6249         Likewise.
6250         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
6251         Likewise.
6252         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
6253         * include/pstl/unseq_backend_simd.h (_Combiner)
6254         (__simd_min_element, __simd_minmax_element): Likewise.
6255         * testsuite/17_intro/names_pstl.cc: New test.
6256
6257 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6258
6259         * include/bits/fs_ops.h (create_directory): Use reserved name
6260         for parameter.
6261         * include/bits/ranges_algo.h (__contains_subrange_fn):
6262         Likewise.
6263         * include/bits/regex_automaton.h (_State_base::_M_print):
6264         Likewise.
6265         * include/bits/regex_automaton.tcc(_State_base::_M_print):
6266         Likewise.
6267         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
6268         * include/experimental/bits/fs_ops.h (create_directory):
6269         Likewise.
6270         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
6271         (recursive_timed_mutex:_M_clocklock): Likewise.
6272         * include/std/tuple (basic_common_reference): Likewise.
6273         * libsupc++/cxxabi_init_exception.h
6274         (__cxa_init_primary_exception): Likewise.
6275         * testsuite/17_intro/names.cc: Add checks.
6276
6277 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
6278
6279         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
6280         to www.open-std.org and https.
6281         * doc/html/manual/status.html: Regenerate.
6282
6283 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
6284
6285         PR libstdc++/103934
6286         * include/std/atomic (atomic_flag_wait): Add.
6287         (atomic_flag_wait_explicit): Add.
6288         (atomic_flag_notify): Add.
6289         (atomic_flag_notify_explicit): Add.
6290         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
6291         Add test case to cover missing atomic_flag free functions.
6292
6293 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
6294
6295         PR libstdc++/103934
6296         * include/std/atomic (atomic_flag_test): Add.
6297         (atomic_flag_test_explicit): Add.
6298         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
6299         test case to cover missing atomic_flag free functions.
6300         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
6301         Likewise.
6302
6303 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
6304
6305         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
6306         "The Component Object Model" reference.
6307         * doc/html/manual/policy_data_structures.html: Regenerate.
6308
6309 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
6310
6311         * doc/xml/manual/containers.xml: Tweak a link to N1780
6312         (C++ standard).
6313         * doc/html/manual/associative.html: Regenerate.
6314
6315 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
6316
6317         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
6318         * doc/html/manual/facets.html: Regenerate.
6319
6320 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
6321
6322         * doc/xml/manual/policy_data_structures_biblio.xml: Update
6323         link to "Worst-case efficient priority queues".
6324         * doc/html/manual/policy_data_structures.html: Regenerate.
6325
6326 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
6327
6328         * doc/xml/manual/using.xml: Document newly-freestanding
6329         headers and the effect of the -ffreestanding flag.
6330         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
6331         completed.
6332         * doc/xml/manual/configure.xml: Document that hosted installs
6333         respect __STDC_HOSTED__.
6334         * doc/xml/manual/test.xml: Document how to run tests in
6335         freestanding mode.
6336         * doc/html/*: Regenerate.
6337
6338 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
6339
6340         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
6341         (__find_last_if_fn): Likewise.
6342
6343 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
6344
6345         * include/std/type_traits: Add diagnostic pragmas around
6346         references to deprecated std::aligned_storage and
6347         std::aligned_union traits.
6348         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
6349         Add dg-warning for et c++23.
6350         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
6351         Likewise.
6352         * testsuite/20_util/aligned_storage/value.cc: Likewise.
6353         * testsuite/20_util/aligned_union/1.cc: Likewise.
6354         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
6355         Likewise.
6356
6357 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
6358
6359         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
6360         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
6361         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
6362         * include/std/type_traits (aligned_storage, aligned_union)
6363         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
6364         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
6365         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
6366
6367 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
6368
6369         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
6370         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
6371         consistent with other 'deprecated' macros.
6372         * include/std/type_traits (is_pod, is_pod_v): Use
6373         _GLIBCXX20_DEPRECATED_SUGGEST instead.
6374
6375 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
6376
6377         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
6378         * Makefile.in: Regenerate.
6379         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
6380         There's no history to be compatible with.
6381         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
6382         source files from the build.
6383         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
6384         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
6385         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
6386         * src/Makefile.in: Regenerate.
6387         * src/c++11/Makefile.in: Regenerate.
6388         * src/c++17/Makefile.in: Regenerate.
6389         * src/c++20/Makefile.in: Regenerate.
6390         * src/c++98/Makefile.in: Regenerate.
6391
6392 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
6393
6394         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
6395         filesystem, libbacktrace and experimental.
6396         * src/Makefile.in: Regenerate.
6397
6398 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
6399
6400         PR libstdc++/108672
6401         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
6402         instead of int32_t.
6403
6404 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
6405
6406         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
6407         * doc/html/manual/documentation_hacking.html: Regenerate.
6408
6409 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
6410
6411         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
6412         storage to the move-from instance when allocators are equal.
6413         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
6414         New test case.
6415
6416 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
6417
6418         * config/os/gnu-linux/os_defines.h [!__linux__]
6419         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
6420
6421 2023-02-03  Patrick Palka  <ppalka@redhat.com>
6422
6423         * include/bits/ranges_algo.h (__find_last_fn, find_last):
6424         Define.
6425         (__find_last_if_fn, find_last_if): Define.
6426         (__find_last_if_not_fn, find_last_if_not): Define.
6427         * testsuite/25_algorithms/find_last/1.cc: New test.
6428         * testsuite/25_algorithms/find_last_if/1.cc: New test.
6429         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
6430
6431 2023-02-03  Patrick Palka  <ppalka@redhat.com>
6432
6433         * include/bits/ranges_algo.h (out_value_result): Define.
6434         (iota_result): Define.
6435         (__iota_fn, iota): Define.
6436         * testsuite/25_algorithms/iota/1.cc: New test.
6437
6438 2023-02-03  Patrick Palka  <ppalka@redhat.com>
6439
6440         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
6441         (__contains_subrange_fn, contains_subrange): Define.
6442         * testsuite/25_algorithms/contains/1.cc: New test.
6443         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
6444
6445 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
6446
6447         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
6448         * doc/html/manual/abi.html: Regenerate.
6449
6450 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6451
6452         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
6453         errc::function_not_supported instead of errc::not_supported.
6454
6455 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6456
6457         * include/std/sstream  (basic_stringbuf::view): Define for old
6458         std::string ABI.
6459         (basic_istringstream::view, basic_0stringstream::view)
6460         (basic_stringstream::view): Likewise.
6461         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
6462         { dg-require-effective-target cxx11_abi }.
6463         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
6464         Likewise.
6465         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
6466         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
6467         Likewise.
6468         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
6469         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
6470         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
6471         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
6472         Likewise.
6473
6474 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6475
6476         PR libstdc++/108636
6477         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
6478         conversion operators for directory iterator comparisons with
6479         std::default_sentinel_t.
6480         * include/bits/fs_path.h (path::path(string_view, _Type))
6481         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
6482         definitions to ...
6483         * src/c++17/fs_path.cc: ... here.
6484         * testsuite/27_io/filesystem/path/108636.cc: New test.
6485
6486 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6487
6488         * include/std/variant (variant::operator=): Implement resolution
6489         of LWG 3585.
6490         * testsuite/20_util/variant/lwg3585.cc: New test.
6491
6492 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
6493
6494         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
6495         link to https.
6496         * doc/html/manual/using_exceptions.html: Regenerate.
6497
6498 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
6499
6500         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
6501         * doc/html/manual/debug.html: Regenerate.
6502
6503 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
6504
6505         * src/c++11/random.cc (random_device::_M_fini): Do not try to
6506         close the file handle if the target doesn't support the
6507         /dev/random and /dev/urandom files.
6508
6509 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
6510
6511         * config/os/generic/error_constants.h (errc::value_too_large)
6512         [__AVR__]: Define.
6513         * src/c++11/system_error.cc
6514         (system_category::default_error_condition) [__AVR__]: Only match
6515         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
6516         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
6517         for ENOENT etc. in switch.
6518         (fs::remove_all) [__AVR__]: Likewise.
6519         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
6520         close etc.
6521
6522 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
6523
6524         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
6525         embed_zoneinfo=no
6526         * configure: Regenerate.
6527
6528 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
6529
6530         PR testsuite/108632
6531         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
6532         struct at end of S0.
6533
6534 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
6535
6536         * doc/xml/manual/shared_ptr.xml: Move links from both
6537         http://open-std.org and http://www.open-std.org to
6538         https://www.open-std.org.
6539         * doc/html/manual/memory.html: Regenerate.
6540
6541 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
6542
6543         * doc/xml/manual/appendix_contributing.xml: Adjust link to
6544         ISO C++ standard at ANSI.
6545         Move link to www.open-std.org to https.
6546         * doc/html/manual/appendix_contributing.html: Regenerate.
6547
6548 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
6549
6550         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
6551         links to https.
6552         * doc/html/manual/documentation_hacking.html: Regenerate.
6553
6554 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
6555
6556         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
6557         * doc/html/manual/abi.html: Regenerate.
6558
6559 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
6560
6561         PR libstdc++/108568
6562         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
6563         include features.h if present and then check __GLIBC__ and
6564         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
6565         __GLIBC_PREREQ which isn't defined yet.
6566
6567 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
6568
6569         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
6570         string literal.
6571
6572 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
6573
6574         PR libstdc++/108554
6575         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
6576
6577 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
6578
6579         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
6580         rules named "+" for compatibility with older tzdata.zi files.
6581
6582 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
6583
6584         PR libstdc++/108554
6585         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
6586         nonnull attribute.
6587         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
6588         attributes.
6589         * testsuite/23_containers/map/modifiers/108554.cc: New test.
6590
6591 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
6592
6593         PR libstdc++/108530
6594         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
6595         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
6596
6597 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
6598
6599         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
6600         use https.
6601         * doc/html/manual/bugs.html: Regenerate.
6602
6603 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
6604
6605         PR libstdc++/108530
6606         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
6607         /etc/sysconfig/clock.
6608
6609 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
6610
6611         PR libstdc++/102301
6612         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
6613         std::make_reverse_iterator.
6614         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
6615         (make_from_tuple): Add static assertion from P2255 to diagnose
6616         dangling references.
6617         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
6618         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
6619
6620 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
6621
6622         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
6623         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
6624         (_Safe_iterator::operator++(int)): Use latter.
6625         (_Safe_iterator::operator--(int)): Likewise.
6626         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
6627         check.
6628         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
6629         New.
6630         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
6631         (_Safe_local_iterator::operator++(int)): Use latter.
6632         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
6633         entry associated to the array entry.
6634
6635 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
6636
6637         * include/bits/fs_path.h (u8path): Add deprecated attribute.
6638         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
6639         -Wno-deprecated-declarations for C++20 and later.
6640         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
6641         Likewise.
6642         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
6643         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
6644         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
6645
6646 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
6647
6648         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
6649         Always call _M_fini and _M_getentropy.
6650
6651 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
6652
6653         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
6654         to www.open-std.org to use https.
6655         (COM: Component Model Object Technologies): Rename from...
6656         (The Component Object Model): ...to.
6657         * doc/html/manual/policy_data_structures.html: Regenerate.
6658
6659 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
6660
6661         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
6662         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
6663         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
6664
6665 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
6666
6667         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
6668         of $host. Fix check for file being present during native build.
6669         * configure: Regenerate.
6670
6671 2023-01-17  Martin Liska  <mliska@suse.cz>
6672
6673         * src/libbacktrace/Makefile.in: Regenerate.
6674
6675 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
6676
6677         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
6678
6679 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
6680
6681         PR libstdc++/108413
6682         * include/c_compatibility/stdatomic.h: Change copyright line to
6683         be consistent with other headers contributed under DCO terms.
6684         * include/std/expected: Add full stop to copyright line.
6685         * src/c++20/tzdb.cc: Likewise.
6686
6687 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
6688
6689         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
6690         https.
6691         * doc/xml/manual/status_cxx2017.xml: Ditto.
6692         * doc/xml/manual/status_cxx2020.xml: Ditto.
6693         * doc/xml/manual/status_cxx2023.xml: Ditto.
6694         * doc/html/manual/status.html: Regenerate.
6695
6696 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
6697
6698         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
6699         and fail gracefully if defining the weak symbol doesn't work.
6700
6701 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
6702
6703         PR libstdc++/108288
6704         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
6705         fix to other iterator category.
6706         (_Safe_iterator<>::operator--(int)): Likewise.
6707         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
6708         Fix deadlock.
6709         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
6710         (invalid_local_iterator_post_increment): New.
6711         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
6712         New test.
6713         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
6714         New test.
6715
6716 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
6717
6718         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
6719         dg-options.
6720
6721 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
6722
6723         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
6724
6725 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
6726
6727         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
6728         windows.h. Add pecoff as FORMAT_FILE.
6729         * config.h.in: Regenerate.
6730         * configure: Regenerate.
6731         * src/libbacktrace/Makefile.am: Regenerate.
6732         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
6733
6734 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
6735
6736         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
6737         raw __name if __cxa_demangle could not demangle it.
6738
6739 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
6740
6741         PR libstdc++/108409
6742         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
6743         variable.
6744
6745 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
6746
6747         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
6748         loading tzdb.
6749         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
6750         effective target.
6751         * testsuite/std/time/tzdb_list/1.cc: Likewise.
6752
6753 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
6754
6755         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
6756         --with-libstdcxx-zoneinfo-dir configure option with
6757         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
6758         a directory.
6759         * config.h.in: Regenerate.
6760         * configure: Regenerate.
6761         * doc/xml/manual/configure.xml: Document configure option.
6762         * doc/html/manual/configure.html: Regenerate.
6763         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
6764         * src/c++20/Makefile.in: Regenerate.
6765         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
6766         null pointer if no directory is configured.
6767         (zoneinfo_dir): Replace with ...
6768         (zoneinfo_file): New function.
6769         (tzdata_stream): New istream class.
6770         (remote_version, reload_tzdb): Use tzdata_stream.
6771         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
6772         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
6773         tzdata.zi file in default location.
6774         * src/c++20/tzdata.zi: New file.
6775
6776 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
6777
6778         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
6779         * testsuite/std/time/month_day/io.cc: New test.
6780         * testsuite/std/time/month_day_last/io.cc: New test.
6781         * testsuite/std/time/month_weekday/io.cc: New test.
6782         * testsuite/std/time/month_weekday_last/io.cc: New test.
6783         * testsuite/std/time/weekday_indexed/io.cc: New test.
6784         * testsuite/std/time/weekday_last/io.cc: New test.
6785         * testsuite/std/time/year_month/io.cc: New test.
6786         * testsuite/std/time/year_month_day_last/io.cc: New test.
6787         * testsuite/std/time/year_month_weekday/io.cc: New test.
6788         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
6789
6790 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
6791
6792         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
6793         specifications.
6794         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
6795         export.
6796
6797 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
6798
6799         * include/bits/std_mutex.h: Include <errno.h>.
6800
6801 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
6802
6803         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
6804         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
6805         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
6806         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
6807         std::make_unique with a freestanding-compatible wrapper around
6808         unique_ptr.
6809         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
6810         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
6811         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
6812         Ditto.
6813         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
6814         of __cpp_lib_ranges in !HOSTED.
6815
6816 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
6817
6818         * include/Makefile.am: Install bits/char_traits.h,
6819         std/string_view
6820         * include/Makefile.in: Regenerate.
6821         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
6822         mbstate-only bits behind appropriate #ifs.
6823         * include/std/string_view: Gate <iostream> functionality behind
6824         HOSTED.
6825         * include/std/version: Enable __cpp_lib_constexpr_string_view
6826         and __cpp_lib_starts_ends_with in !HOSTED.
6827         * include/std/ranges: Re-enable __is_basic_string_view on
6828         freestanding, include <string_view> directly.
6829         * include/precompiled/stdc++.h: Include <string_view> when
6830         !HOSTED too.
6831         * testsuite/20_util/function_objects/searchers.cc: Skip testing
6832         boyer_moore searchers on freestanding
6833         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
6834         <string>-related tests behind __STDC_HOSTED__.
6835         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
6836         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
6837         unused <stdexcept> include.
6838         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
6839         unused <vector> include.
6840         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
6841         Guard <string> related testing behind __STDC_HOSTED__.
6842         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
6843         Guard <stdexcept> related tests behind __STDC_HOSTED__.
6844         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
6845         Ditto.
6846         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
6847         Guard <stdexcept> tests behind __STDC_HOSTED__.
6848         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
6849         Enable test on freestanding, guard <stdexcept> bits behind
6850         __STDC_HOSTED__.
6851         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
6852         Guard <stdexcept> bits behind __STDC_HOSTED__.
6853         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
6854         Ditto.
6855
6856 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
6857
6858         PR libstdc++/86419
6859         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
6860         errors in incomplete multibyte sequences.
6861         (utf16_in): Remove surrogates parameter. Fix conditions for
6862         returning partial.
6863         (utf16_out): Fix condition for returning partial.
6864         (ucs2_in): Do not pass surrogates argument to utf16_in.
6865         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
6866         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
6867         tests.
6868         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
6869         test.
6870
6871 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
6872
6873         PR libstdc++/108331
6874         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
6875         __GTHREAD_LEGACY_MUTEX_T if defined.
6876
6877 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
6878
6879         PR libstdc++/108327
6880         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
6881         Export __try_use_facet specializations for facets in namespace
6882         __gnu_cxx_ldbl128.
6883         * config/os/gnu-linux/ldbl-ieee128-extra.ver
6884         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
6885         __gnu_cxx_ieee128.
6886         * testsuite/util/testsuite_abi.cc: Add to lists of known and
6887         latest versions.
6888
6889 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
6890
6891         * include/bits/std_mutex.h: Remove <system_error> include.
6892         * include/std/condition_variable: Add <bits/error_constants.h>
6893         include.
6894         * include/std/mutex: Likewise.
6895         * include/std/shared_mutex: Likewise.
6896
6897 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
6898
6899         PR libstdc++/77691
6900         * include/experimental/memory_resource
6901         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
6902         (do_allocate, do_deallocate): Check it.
6903         * testsuite/experimental/memory_resource/new_delete_resource.cc:
6904         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
6905
6906 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
6907
6908         * doc/xml/manual/abi.xml: Add latest library versions.
6909         * doc/html/manual/abi.html: Regenerate.
6910
6911 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
6912
6913         PR libstdc++/107189
6914         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
6915         unused _Alloc_node instance.
6916
6917 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
6918
6919         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
6920         Define as unsigned long if always lock-free, and unsigned int
6921         otherwise.
6922
6923 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
6924
6925         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
6926         __catch macros for exception handling.
6927
6928 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
6929
6930         PR libstdc++/108221
6931         * include/bits/stl_algobase.h (__lg): Replace six overloads with
6932         a single function template for all integer types.
6933         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
6934         arithmetic results back to _Distance.
6935
6936 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
6937
6938         PR libstdc++/108221
6939         * include/std/span (span::span()): Un-simplify constraint to
6940         work for size_t of lesser rank than int.
6941
6942 2023-01-07  LIU Hao  <lh_mouse@126.com>
6943
6944         PR middle-end/108300
6945         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
6946         <windows.h>.
6947         * src/c++11/thread.cc: Likewise.
6948         * src/c++17/fs_ops.cc: Likewise.
6949         * src/filesystem/ops.cc: Likewise.
6950
6951 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
6952
6953         PR libstdc++/108228
6954         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
6955
6956 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
6957
6958         PR libstdc++/108235
6959         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
6960         template and partial specialization for synchronizing access to
6961         time_zone::_Impl::infos.
6962         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
6963         rules_counter.
6964
6965 2023-01-06  Patrick Palka  <ppalka@redhat.com>
6966
6967         PR libstdc++/108260
6968         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
6969         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
6970         (__cpp_lib_ranges_chunk): Likewise.
6971         (__cpp_lib_ranges_slide): Likewise.
6972         (__cpp_lib_ranges_chunk_by): Likewise.
6973         (__cpp_lib_ranges_join_with): Likewise.
6974         (__cpp_lib_ranges_repeat): Likewise.
6975         (__cpp_lib_ranges_stride): Likewise.
6976         (__cpp_lib_ranges_cartesian_product): Likewise.
6977         (__cpp_lib_ranges_as_rvalue): Likewise.
6978         * include/std/version: Ditto.
6979         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
6980         feature-test macro.
6981         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
6982         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
6983         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
6984         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
6985         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
6986         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
6987         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
6988         * testsuite/std/ranges/repeat/1.cc: Likewise.
6989         * testsuite/std/ranges/zip/1.cc: Likewise.
6990         * testsuite/std/ranges/version_c++23.cc: New test.
6991
6992 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
6993
6994         PR libstdc++/108214
6995         * include/std/bitset (operator>>): Use alloca in the right
6996         scope, not in a constructor.
6997         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
6998
6999 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7000
7001         PR libstdc++/108221
7002         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
7003         Disable visiting floating-point types.
7004
7005 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7006
7007         PR libstdc++/108288
7008         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
7009         (_Safe_iterator::operator--(int)): Do not hold lock around
7010         construction of return value.
7011
7012 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
7013
7014         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
7015         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
7016         lock release.  Revise loop.
7017         (__atomic_add): Likewise.
7018
7019 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7020
7021         PR libstdc++/108212
7022         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
7023         variable.
7024         (StdChronoTimePointPrinter::to_string): Use it.
7025
7026 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7027
7028         PR libstdc++/108290
7029         * include/std/functional (_Bind_front): Add no_unique_address
7030         attribute to data members.
7031         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
7032         size of call wrappers with empty types for targets and bound
7033         arguments.
7034
7035 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7036
7037         PR libstdc++/108211
7038         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
7039         using only last component of the name.
7040
7041 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7042
7043         PR libstdc++/108228
7044         PR libstdc++/108235
7045         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
7046         the latest symbol version.
7047         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
7048         atomic<_Node*> is not always lock free.
7049         (USE_ATOMIC_LIST_HEAD): New macro.
7050         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
7051         definition of weak symbol.
7052         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
7053         (tzdb_list::_Node::_S_list_head): New function for accessing
7054         list head efficiently.
7055         (tzdb_list::_Node::_S_cache_list_head): New function for
7056         updating _S_list_head.
7057
7058 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7059
7060         PR libstdc++/108265
7061         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
7062         duration rep is unsigned.
7063         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
7064
7065 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
7066
7067         PR libstdc++/108228
7068         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
7069         Add __gnu_cxx::zoneinfo_dir_override().
7070
7071 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
7072
7073         PR libstdc++/108258
7074         * include/std/array (__array_traits<T, 0>::operator T*()): Add
7075         constexpr.
7076         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
7077         std::array<T, 0>::data().
7078
7079 \f
7080 Copyright (C) 2023 Free Software Foundation, Inc.
7081
7082 Copying and distribution of this file, with or without modification,
7083 are permitted in any medium without royalty provided the copyright
7084 notice and this notice are preserved.