libstdc++-v3/ChangeLog

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