libstdc++-v3/ChangeLog

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