libstdc++-v3/ChangeLog

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