libstdc++-v3/ChangeLog

   1 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
   2
   3         * include/std/chrono (operator-(const weekday&, const weekday&)):
   4         Optimize.
   5
   6 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
   7
   8         * include/std/chrono (weekday::_S_from_days): Fix UB.
   9         * testsuite/std/time/weekday/1.cc: Add test for overflow.
  10
  11 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
  12
  13         * include/std/chrono (year::is_leap): Clear code.
  14
  15 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
  16
  17         * include/std/chrono (year_month_day_last::day): Remove &1.
  18
  19 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
  20
  21         * include/std/charconv (__from_chars_pow2_base): Convert base to
  22         unsigned for call to __countr_zero.
  23         (__from_chars_alnum): Likewise for call to __bit_width.
  24
  25 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
  26
  27         PR libstdc++/112348
  28         * include/std/stacktrace (hash<basic_stacktrace<Alloc>>): Fix
  29         type of hash functio nfor entries.
  30         * testsuite/19_diagnostics/stacktrace/hash.cc: New test.
  31
  32 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
  33
  34         PR libstdc++/112491
  35         * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.size): Fix
  36         calculation to use _M_start._M_cur.
  37         * testsuite/libstdc++-xmethods/deque.cc: Check failing cases.
  38
  39 2023-11-13  Arsen Arsenović  <arsen@aarsen.me>
  40
  41         * configure: Regenerate.
  42
  43 2023-11-13  Jonathan Wakely  <jwakely@redhat.com>
  44
  45         * testsuite/std/time/clock/file/io.cc: Double timeout using
  46         dg-timeout-factor.
  47         * testsuite/std/time/clock/gps/io.cc: Likewise.
  48         * testsuite/std/time/clock/local/io.cc: Likewise.
  49         * testsuite/std/time/clock/system/io.cc: Likewise.
  50         * testsuite/std/time/clock/tai/io.cc: Likewise.
  51         * testsuite/std/time/clock/utc/io.cc: Likewise.
  52
  53 2023-11-13  Jonathan Wakely  <jwakely@redhat.com>
  54
  55         PR libstdc++/112480
  56         * include/std/optional (_Optional_payload_base::_M_reset): Set
  57         _M_engaged to false unconditionally.
  58
  59 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
  60
  61         PR libstdc++/112467
  62         * include/bits/stl_bvector.h (_M_assume_normalized): Do not use
  63         statement form of assume attribute for Clang.
  64
  65 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
  66
  67         * include/std/string_view (operator==, operator<=>): Remove
  68         redundant overloads (LWG 3950).
  69
  70 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
  71
  72         * testsuite/26_numerics/headers/complex.h/std_c++11.h: Moved to...
  73         * testsuite/26_numerics/headers/complex.h/std_c++11.cc: ...here.
  74         * testsuite/26_numerics/headers/complex.h/std_c++98.h: Moved to...
  75         * testsuite/26_numerics/headers/complex.h/std_c++98.cc: ...here.
  76         Check macro first and then #undef.
  77         * testsuite/26_numerics/headers/complex.h/std_gnu++11.h: Moved to...
  78         * testsuite/26_numerics/headers/complex.h/std_gnu++11.cc: ...here.
  79
  80 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
  81
  82         PR libstdc++/112473
  83         * include/bits/utility.h (integer_sequence): Add static_assert.
  84         * testsuite/20_util/integer_sequence/112473.cc: New test.
  85
  86 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
  87
  88         * testsuite/20_util/pair/dangling_ref.cc: Add hosted effective
  89         target for specifiers using c++17_down.
  90
  91 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
  92
  93         * include/bits/shared_ptr_atomic.h (atomic_is_lock_free)
  94         (atomic_load_explicit, atomic_load, atomic_store_explicit)
  95         (atomic_store, atomic_exchange_explicit, atomic_exchange)
  96         (atomic_compare_exchange_strong, atomic_compare_exchange_weak)
  97         (atomic_compare_exchange_strong_explicit)
  98         (atomic_compare_exchange_weak_explicit): Add deprecated
  99         attribute for C++20 and later.
 100         * testsuite/20_util/shared_ptr/atomic/1.cc: Suppress deprecated
 101         warnings.
 102         * testsuite/20_util/shared_ptr/atomic/2.cc: Likewise.
 103         * testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
 104         * testsuite/29_atomics/atomic/lwg3220.cc: Likewise.
 105
 106 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 107
 108         * include/bits/std_mutex.h (lock_guard): Add [[nodiscard]]
 109         attribute to constructors.
 110         * include/bits/unique_lock.h (unique_lock): Likewise.
 111         * include/std/mutex (scoped_lock, scoped_lock<Mutex>): Likewise.
 112         * testsuite/30_threads/lock_guard/cons/nodiscard.cc: New test.
 113         * testsuite/30_threads/scoped_lock/cons/nodiscard.cc: New test.
 114         * testsuite/30_threads/unique_lock/cons/nodiscard.cc: New test.
 115
 116 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 117
 118         * include/std/span (span, as_bytes, as_writable_bytes): Add
 119         [[nodiscard]] attribute on all non-void functions.
 120         * testsuite/23_containers/span/back_assert_neg.cc: Suppress
 121         nodiscard warning.
 122         * testsuite/23_containers/span/back_neg.cc: Likewise.
 123         * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
 124         * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
 125         * testsuite/23_containers/span/first_neg.cc: Likewise.
 126         * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
 127         * testsuite/23_containers/span/front_neg.cc: Likewise.
 128         * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
 129         * testsuite/23_containers/span/index_op_neg.cc: Likewise.
 130         * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
 131         * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
 132         * testsuite/23_containers/span/last_neg.cc: Likewise.
 133         * testsuite/23_containers/span/subspan_2_assert_neg.cc:
 134         Likewise.
 135         * testsuite/23_containers/span/subspan_3_assert_neg.cc:
 136         Likewise.
 137         * testsuite/23_containers/span/subspan_4_assert_neg.cc:
 138         Likewise.
 139         * testsuite/23_containers/span/subspan_5_assert_neg.cc:
 140         Likewise.
 141         * testsuite/23_containers/span/subspan_6_assert_neg.cc:
 142         Likewise.
 143         * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
 144         * testsuite/23_containers/span/subspan_neg.cc: Likewise.
 145         * testsuite/23_containers/span/nodiscard.cc: New test.
 146
 147 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 148
 149         PR libstdc++/111638
 150         * config.h.in: Regenerate.
 151         * configure: Regenerate.
 152         * linkage.m4 (GLIBCXX_MAYBE_UNDERSCORED_FUNCS): Remove.
 153         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1): Do not check for _foo.
 154         (GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1): Likewise.
 155         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2): Likewise.
 156         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3): Likewise.
 157         (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2): Do not use
 158         GLIBCXX_MAYBE_UNDERSCORED_FUNCS.
 159
 160 2023-11-11  Nathaniel Shead  <nathanieloshead@gmail.com>
 161
 162         PR libstdc++/79700
 163         * include/c_global/cmath (acosf, acosl, asinf, asinl, atanf)
 164         (atanl, atan2f, atan2l, ceilf, ceill, cosf, cosl, coshf, coshl)
 165         (expf, expl, fabsf, fabsl, floorf, floorl, fmodf, fmodl, frexpf)
 166         (frexpl, ldexpf, ldexpl, logf, logl, log10f, log10l, modff)
 167         (modfl, powf, powl, sinf, sinl, sinhf, sinhl, sqrtf, sqrtl, tanf)
 168         (tanl, tanhf, tanhl): Add using-declarations in namespace std.
 169         * testsuite/26_numerics/headers/cmath/equivalent_functions.cc:
 170         New test.
 171         * testsuite/26_numerics/headers/cmath/functions_std_c++17.cc:
 172         Add checks for existence of above names.
 173
 174 2023-11-09  Arsen Arsenović  <arsen@aarsen.me>
 175
 176         * testsuite/20_util/scoped_allocator/noexcept.cc: Mark as
 177         requiring hosted.
 178
 179 2023-11-09  Arsen Arsenović  <arsen@aarsen.me>
 180
 181         * include/bits/memoryfwd.h: Remove HOSTED check around allocator
 182         and its specializations.
 183
 184 2023-11-09  Patrick Palka  <ppalka@redhat.com>
 185
 186         PR libstdc++/112453
 187         * include/std/ranges (__detail::__box<_Tp>::operator*): Define
 188         && overloads as well.
 189         (__detail::__take_of_repeat_view): Forward __r when accessing
 190         its _M_value member.
 191         (__detail::__drop_of_repeat_view): Likewise.
 192         * testsuite/std/ranges/repeat/1.cc (test07): New test.
 193
 194 2023-11-09  François Dumont  <fdumont@gcc.gnu.org>
 195
 196         * include/bits/hashtable_policy.h (_RehashStateGuard): New.
 197         (_Insert_base<>::_M_insert_range(_IIt, _IIt, const _NodeGet&, false_type)):
 198         Adapt.
 199         * include/bits/hashtable.h (__rehash_guard_t): New.
 200         (__rehash_state): Remove.
 201         (_M_rehash): Remove.
 202         (_M_rehash_aux): Rename into _M_rehash.
 203         (_M_assign_elements, _M_insert_unique_node, _M_insert_multi_node): Adapt.
 204         (rehash): Adapt.
 205
 206 2023-11-09  François Dumont  <fdumont@gcc.gnu.org>
 207
 208         * include/bits/hashtable_policy.h
 209         (struct _NodePtrGuard<_HashtableAlloc, _NodePtr>): New.
 210         (_ReuseAllocNode::operator()(_Args&&...)): Use latter to guard allocated node
 211         pointer while constructing in place the value_type instance.
 212
 213 2023-11-09  Alexandre Oliva  <oliva@adacore.com>
 214
 215         PR libstdc++/110807
 216         * include/bits/stl_bvector.h (_Bit_iterator_base): Add
 217         _M_assume_normalized member function.  Call it in _M_bump_up,
 218         _M_bump_down, _M_incr, operator==, operator<=>, operator<, and
 219         operator-.
 220         (_Bit_iterator): Also call it in operator*.
 221         (_Bit_const_iterator): Likewise.
 222
 223 2023-11-07  François Dumont  <fdumont@gcc.gnu.org>
 224
 225         * include/bits/hashtable_policy.h
 226         (_Hashtable_alloc<>::_M_allocate_node): Add missing call to node destructor
 227         on construct exception.
 228
 229 2023-11-07  Richard Biener  <rguenther@suse.de>
 230
 231         PR libstdc++/112351
 232         * src/c++98/locale.cc (locale::facet::_S_initialize_once):
 233         Check whether _S_c_locale is already initialized.
 234         (locale::facet::_S_get_c_locale): Always perform non-threadsafe
 235         init when threadsafe init failed.
 236
 237 2023-11-06  Ian Lance Taylor  <iant@golang.org>
 238
 239         PR libbacktrace/111315
 240         PR libbacktrace/112263
 241         * acinclude.m4: Set -D_GNU_SOURCE in BACKTRACE_CPPFLAGS and when
 242         grepping link.h for dl_iterate_phdr.
 243         * configure: Regenerate.
 244
 245 2023-11-06  Jonathan Wakely  <jwakely@redhat.com>
 246
 247         * include/std/expected (expected::and_then, expected::or_else):
 248         Add string literals to static assertions.
 249         * include/std/optional (optional::and_then, optional::or_else):
 250         Likewise.
 251
 252 2023-11-04  Feng Jisen  <J1senn@outlook.com>
 253
 254         * include/bits/utility.h (_Nth_type): Remove redundant partial
 255         specialization.
 256
 257 2023-11-04  Jonathan Wakely  <jwakely@redhat.com>
 258
 259         PR libstdc++/110133
 260         * include/std/system_error (system_error::system_error): Group
 261         arguments so that concatenation can reuse rvalue's capacity.
 262         * src/c++11/system_error.cc (strerror_string): New function.
 263         [_GLIBCXX_HAVE_STRERROR_R] (use_strerror_result): New functions.
 264         (generic_error_category::message): Use strerror_string.
 265         (system_error_category::message): Likewise.
 266
 267 2023-11-04  Jonathan Wakely  <jwakely@redhat.com>
 268
 269         * doc/xml/manual/appendix_contributing.xml: Replace example that
 270         uses a BADNAME.
 271         * doc/html/manual/source_code_style.html: Regenerate.
 272
 273 2023-11-02  Jonathan Wakely  <jwakely@redhat.com>
 274
 275         PR libstdc++/112314
 276         * include/std/string_view (string_view::remove_suffix): Add
 277         debug assertion.
 278         * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/debug.cc:
 279         New test.
 280         * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/debug.cc:
 281         New test.
 282
 283 2023-11-02  Jonathan Wakely  <jwakely@redhat.com>
 284
 285         * acinclude.m4 (GLIBCXX_ENABLE_C99): Fix snprintf checks.
 286         * configure: Regenerate.
 287
 288 2023-10-30  François Dumont  <fdumont@gcc.gnu.org>
 289
 290         * config/abi/pre/gnu-versioned-namespace.ver: Add comment on recently
 291         added emul TLS symbols.
 292
 293 2023-10-30  François Dumont  <fdumont@gcc.gnu.org>
 294
 295         * src/experimental/contract.cc
 296         [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Rework comment.
 297         Remove weak attribute.
 298
 299 2023-10-29  François Dumont  <fdumont@gcc.gnu.org>
 300
 301         * config/abi/pre/gnu-versioned-namespace.ver: Add missing emul TLS
 302         symbols.
 303
 304 2023-10-29  François Dumont  <fdumont@gcc.gnu.org>
 305
 306         * src/experimental/contract.cc
 307         [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Provide symbol
 308         without version namespace decoration for gcc.
 309
 310 2023-10-26  Jonathan Wakely  <jwakely@redhat.com>
 311
 312         PR libstdc++/112089
 313         * include/std/shared_mutex (shared_lock::unlock): Change errc
 314         constant to operation_not_permitted.
 315         * testsuite/30_threads/shared_lock/locking/112089.cc: New test.
 316
 317 2023-10-26  Jonathan Wakely  <jwakely@redhat.com>
 318
 319         * testsuite/20_util/duration/io.cc: Double timeout using
 320         dg-timeout-factor.
 321         * testsuite/std/time/day/io.cc: Likewise.
 322         * testsuite/std/time/format.cc: Likewise.
 323         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
 324         * testsuite/std/time/month/io.cc: Likewise.
 325         * testsuite/std/time/month_day/io.cc: Likewise.
 326         * testsuite/std/time/month_day_last/io.cc: Likewise.
 327         * testsuite/std/time/month_weekday/io.cc: Likewise.
 328         * testsuite/std/time/month_weekday_last/io.cc: Likewise.
 329         * testsuite/std/time/weekday/io.cc: Likewise.
 330         * testsuite/std/time/weekday_indexed/io.cc: Likewise.
 331         * testsuite/std/time/weekday_last/io.cc: Likewise.
 332         * testsuite/std/time/year/io.cc: Likewise.
 333         * testsuite/std/time/year_month/io.cc: Likewise.
 334         * testsuite/std/time/year_month_day/io.cc: Likewise.
 335         * testsuite/std/time/year_month_day_last/io.cc: Likewise.
 336         * testsuite/std/time/year_month_weekday/io.cc: Likewise.
 337         * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
 338         * testsuite/std/time/zoned_time/io.cc: Likewise.
 339
 340 2023-10-25  Jonathan Wakely  <jwakely@redhat.com>
 341
 342         PR libstdc++/111936
 343         * src/libbacktrace/Makefile.am: Add -prefer-pic to libtool
 344         compile commands.
 345         * src/libbacktrace/Makefile.in: Regenerate.
 346
 347 2023-10-24  Paul M. Bendixen  <paulbendixen@gmail.com>
 348
 349         * include/Makefile.am: Move cstdarg, cstdalign and cstdbool to
 350         freestanding.
 351         * include/Makefile.in: Regenerate.
 352
 353 2023-10-22  Iain Sandoe  <iain@sandoe.co.uk>
 354
 355         * configure: Regenerate.
 356         * configure.ac: Handle Darwin rpaths.
 357         * src/Makefile.am: Handle Darwin rpaths.
 358         * src/Makefile.in: Regenerate.
 359
 360 2023-10-21  Jonathan Wakely  <jwakely@redhat.com>
 361
 362         * include/bits/basic_string.h (_M_init_local_buf()): New
 363         function.
 364         (_M_use_local_data()): Use _M_init_local_buf.
 365         (basic_string(), basic_string(const Alloc&))
 366         (basic_string(basic_string&&))
 367         (basic_string(basic_string&&, const Alloc&)): Use
 368         _M_init_local_buf instead of _M_use_local_data().
 369         * include/bits/basic_string.tcc (swap(basic_string&))
 370         (_M_construct(InIter, InIter, input_iterator_tag))
 371         (_M_construct(InIter, InIter, forward_iterator_tag))
 372         (_M_construct(size_type, CharT), reserve()): Likewise.
 373
 374 2023-10-21  Benjamin Brock  <brock@cs.berkeley.edu>
 375
 376         * include/std/ranges (zip_view, adjacent_view): Implement
 377         workaround for LLVM-61763.
 378
 379 2023-10-21  Dimitrij Mijoski  <dmjpp@hotmail.com>
 380
 381         * testsuite/22_locale/codecvt/codecvt_unicode.h: Test length()
 382
 383 2023-10-21  Jonathan Wakely  <jwakely@redhat.com>
 384
 385         * include/bits/fs_dir.h (operator==(default_sentinel_t)): Fix
 386         indentation.
 387
 388 2023-10-20  Marek Polacek  <polacek@redhat.com>
 389
 390         PR testsuite/111883
 391         * include/std/charconv (from_chars): Add explicit casts.
 392
 393 2023-10-19  François Dumont  <fdumont@gcc.gnu.org>
 394
 395         * include/bits/hashtable_policy.h
 396         (_Hash_code_base::_M_hash_code(const _Hash&, const _Hash_node_value<>&)): Remove.
 397         (_Hash_code_base::_M_hash_code<_H2>(const _H2&, const _Hash_node_value<>&)): Remove.
 398         * include/bits/hashtable.h
 399         (_M_src_hash_code<_H2>(const _H2&, const key_type&, const __node_value_type&)): New.
 400         (_M_merge_unique<>, _M_merge_multi<>): Use latter.
 401         * testsuite/23_containers/unordered_map/modifiers/merge.cc
 402         (test04, test05, test06): New test cases.
 403
 404 2023-10-13  Jakub Jelinek  <jakub@redhat.com>
 405
 406         * testsuite/tr1/8_c_compatibility/cstdio/functions.cc (test01):
 407         Initialize stream to va_arg(ap, FILE*) rather than 0.
 408         * testsuite/tr1/8_c_compatibility/cwchar/functions.cc (test01):
 409         Likewise.
 410
 411 2023-10-13  Hans-Peter Nilsson  <hp@axis.com>
 412
 413         * testsuite/29_atomics/atomic/compare_exchange_padding.cc,
 414         testsuite/29_atomics/atomic_flag/clear/1.cc,
 415         testsuite/29_atomics/atomic_flag/cons/value_init.cc,
 416         testsuite/29_atomics/atomic_flag/test_and_set/explicit.cc,
 417         testsuite/29_atomics/atomic_flag/test_and_set/implicit.cc,
 418         testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc,
 419         testsuite/29_atomics/atomic_ref/generic.cc,
 420         testsuite/29_atomics/atomic_ref/integral.cc,
 421         testsuite/29_atomics/atomic_ref/pointer.cc: Replace
 422         dg-require-thread-fence with dg-require-atomic-cmpxchg-word.
 423
 424 2023-10-13  Hans-Peter Nilsson  <hp@axis.com>
 425
 426         * testsuite/lib/dg-options.exp (dg-require-atomic-cmpxchg-word):
 427         New proc.
 428         * testsuite/lib/libstdc++.exp (check_v3_target_atomic_cmpxchg_word):
 429         Ditto.
 430
 431 2023-10-05  François Dumont  <fdumont@gcc.gnu.org>
 432
 433         * config/abi/pre/gnu-versioned-namespace.ver: Add missing symbols
 434         for _Float{16,32,64,128,32x,64x,128x}.
 435
 436 2023-10-04  Tom Tromey  <tromey@adacore.com>
 437
 438         * python/libstdcxx/v6/printers.py
 439         (StdExpAnyPrinter.__init__): Qualify call to
 440         _string_types.
 441
 442 2023-10-04  Tom Tromey  <tromey@adacore.com>
 443
 444         * python/libstdcxx/v6/printers.py: Assume that
 445         _versioned_namespace is non-None.
 446         * python/libstdcxx/v6/xmethods.py (is_specialization_of):
 447         Assume that _versioned_namespace is non-None.
 448
 449 2023-10-04  Tom Tromey  <tromey@adacore.com>
 450
 451         * python/libstdcxx/v6/xmethods.py (_versioned_namespace):
 452         Define.
 453
 454 2023-09-29  Dimitrij Mijoski  <dmjpp@hotmail.com>
 455
 456         PR libstdc++/108976
 457         * src/c++11/codecvt.cc (read_utf8_code_point): Fix handing of
 458         surrogates in UTF-8.
 459         (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-8.
 460         (ucs4_in): Fix handling of range with odd number of bytes.
 461         (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-16.
 462         (ucs2_out): Fix handling of surrogates in UCS-2 -> UTF-16.
 463         (ucs2_in): Fix handling of range with odd number of bytes.
 464         (__codecvt_utf16_base<char16_t>::do_in): Likewise.
 465         (__codecvt_utf16_base<char32_t>::do_in): Likewise.
 466         (__codecvt_utf16_base<wchar_t>::do_in): Likewise.
 467         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Renames, add
 468         tests for codecvt_utf16<char16_t> and codecvt_utf16<char32_t>.
 469         * testsuite/22_locale/codecvt/codecvt_unicode.h: Refactor UTF-8
 470         testing functions for char8_t, add more test cases for errors,
 471         add testing functions for codecvt_utf16.
 472         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc:
 473         Renames, add tests for codecvt_utf16<whchar_t>.
 474         * testsuite/22_locale/codecvt/codecvt_utf16/79980.cc (test06):
 475         Fix test.
 476         * testsuite/22_locale/codecvt/codecvt_unicode_char8_t.cc: New
 477         test.
 478
 479 2023-09-29  Nathaniel Shead  <nathanieloshead@gmail.com>
 480
 481         * include/bits/basic_string.h: (basic_string(basic_string&&)):
 482         Activate _M_local_buf when needed.
 483         (basic_string(basic_string&&, const _Alloc&)): Likewise.
 484         * include/bits/basic_string.tcc: (basic_string::swap): Likewise.
 485         * include/std/variant: (__detail::__variant::__construct_n): New.
 486         (__detail::__variant::__emplace): Use __construct_n.
 487
 488 2023-09-28  Tom Tromey  <tromey@adacore.com>
 489
 490         * python/libstdcxx/v6/printers.py (Printer.add_version)
 491         (add_one_template_type_printer)
 492         (FilteringTypePrinter.add_one_type_printer): Use Python
 493         "not in" operator.
 494
 495 2023-09-28  Tom Tromey  <tromey@adacore.com>
 496
 497         * python/libstdcxx/v6/printers.py (std_ratio_t_tuple):
 498         Remove.
 499
 500 2023-09-28  Tom Tromey  <tromey@adacore.com>
 501
 502         * python/libstdcxx/v6/printers.py
 503         (StdExpOptionalPrinter.__init__, lookup_node_type):
 504         Remove unused variables.
 505
 506 2023-09-28  Tom Tromey  <tromey@adacore.com>
 507
 508         * python/libstdcxx/v6/printers.py: Don't import 'os'.
 509         * python/libstdcxx/v6/__init__.py: Don't import 'gdb'.
 510
 511 2023-09-28  Tom Tromey  <tromey@adacore.com>
 512
 513         * python/libstdcxx/v6/printers.py: Use gdb.ValuePrinter
 514         everywhere.  Rename members to start with "_".
 515
 516 2023-09-28  Tom Tromey  <tromey@adacore.com>
 517
 518         * testsuite/lib/gdb-test.exp (gdb-test): Enable Python
 519         stack traces from gdb.
 520
 521 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
 522
 523         * python/libstdcxx/v6/xmethods.py (is_specialization_of): Define
 524         new function.
 525         (ArrayMethodsMatcher, DequeMethodsMatcher)
 526         (ForwardListMethodsMatcher, ListMethodsMatcher)
 527         (VectorMethodsMatcher, AssociativeContainerMethodsMatcher)
 528         (UniquePtrGetWorker, UniquePtrMethodsMatcher)
 529         (SharedPtrSubscriptWorker, SharedPtrMethodsMatcher): Use
 530         is_specialization_of instead of re.match.
 531
 532 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
 533
 534         * python/libstdcxx/v6/printers.py: Break long lines. Use raw
 535         strings for regular expressions. Add whitespace around
 536         operators.
 537         (is_member_of_namespace): Use isinstance to check type.
 538         (is_specialization_of): Likewise. Adjust template_name
 539         for versioned namespace instead of duplicating the re.match
 540         call.
 541         (StdExpAnyPrinter._string_types): New static method.
 542         (StdExpAnyPrinter.to_string): Use _string_types.
 543
 544 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
 545
 546         * python/libstdcxx/v6/printers.py: Format docstrings according
 547         to PEP 257.
 548         * python/libstdcxx/v6/xmethods.py: Likewise.
 549
 550 2023-09-28  Tim Song  <t.canens.cpp@gmail.com>
 551
 552         PR libstdc++/111050
 553         * include/bits/hashtable_policy.h
 554         (_Hash_node_value_base<>::_M_valptr(), _Hash_node_value_base<>::_M_v())
 555         Add [[__gnu__::__always_inline__]].
 556
 557 2023-09-27  Jonathan Wakely  <jwakely@redhat.com>
 558
 559         * python/libstdcxx/v6/printers.py (StdChronoTimeZoneRulePrinter):
 560         Fix incorrect number of replacement fields.
 561
 562 2023-09-26  Hans-Peter Nilsson  <hp@axis.com>
 563
 564         * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Add
 565         dg-require-thread-fence.
 566
 567 2023-09-25  Patrick Palka  <ppalka@redhat.com>
 568
 569         * include/std/charconv (__detail::__integer_to_chars_result_type):
 570         Remove.
 571         (__detail::__to_chars_16): Use to_chars_result as return type.
 572         (__detail::__to_chars_10): Likewise.
 573         (__detail::__to_chars_8): Likewise.
 574         (__detail::__to_chars_2): Likewise.
 575         (__detail::__to_chars_i): Likewise.
 576         (__detail::__integer_from_chars_result_type): Inline the
 577         constraint into ...
 578         (from_chars): ... here.  Use __is_standard_integer in the
 579         constraint.  Encode constraint as a defaulted non-type template
 580         parameter instead of within the return type.
 581
 582 2023-09-25  John David Anglin  <danglin@gcc.gnu.org>
 583
 584         * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
 585
 586 2023-09-25  Jonathan Wakely  <jwakely@redhat.com>
 587
 588         PR libstdc++/111511
 589         PR c++/111512
 590         * include/std/array (to_array): Cast memcpy arguments to void*.
 591         * testsuite/23_containers/array/creation/111512.cc: New test.
 592
 593 2023-09-25  Jonathan Wakely  <jwakely@redhat.com>
 594
 595         * include/bits/move.h (forward_list): Define for C++23.
 596         * include/bits/version.def (forward_like): Define.
 597         * include/bits/version.h: Regenerate.
 598         * include/std/utility (__glibcxx_want_forward_like): Define.
 599         * testsuite/20_util/forward_like/1.cc: New test.
 600         * testsuite/20_util/forward_like/2_neg.cc: New test.
 601         * testsuite/20_util/forward_like/version.cc: New test.
 602
 603 2023-09-19  Marek Polacek  <polacek@redhat.com>
 604
 605         * testsuite/20_util/allocator/105975.cc: Add dg-error.
 606
 607 2023-09-18  Patrick Palka  <ppalka@redhat.com>
 608
 609         PR c++/63198
 610         PR c++/18474
 611         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
 612         Make data member seed_seq::called mutable.
 613         * testsuite/26_numerics/random/independent_bits_engine/cons/seed_seq2.cc:
 614         Likewise.
 615         * testsuite/26_numerics/random/linear_congruential_engine/cons/seed_seq2.cc:
 616         Likewise.
 617         * testsuite/26_numerics/random/mersenne_twister_engine/cons/seed_seq2.cc:
 618         Likewise.
 619         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
 620         Likewise.
 621         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/seed_seq2.cc:
 622         Likewise.
 623         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/seed_seq2.cc:
 624         Likewise.
 625
 626 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
 627
 628         * doc/xml/manual/status_cxx2020.xml: Tweak P1466R3 status.
 629         * doc/html/manual/status.html: Regenerate.
 630
 631 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
 632
 633         * doc/xml/manual/configure.xml: Use conventional option name.
 634         * doc/xml/manual/status_cxx2020.xml: Update.
 635         * doc/xml/manual/status_cxx2023.xml: Update.
 636         * doc/html/*: Regenerate.
 637
 638 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
 639
 640         * doc/xml/manual/intro.xml: Clarify that building libstdc++
 641         separately from GCC is not supported.
 642         * doc/xml/manual/prerequisites.xml: Note msgfmt prerequisite for
 643         testing.
 644         * doc/html/manual/setup.html: Regenerate.
 645
 646 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 647
 648         * testsuite/29_atomics/atomic_ref/wait_notify.cc: Do not
 649         restrict to pthreads targets.
 650         * testsuite/30_threads/jthread/3.cc: Likewise.
 651         * testsuite/30_threads/semaphore/100806.cc: Likewise.
 652         * testsuite/30_threads/semaphore/try_acquire.cc: Likewise.
 653         * testsuite/30_threads/semaphore/try_acquire_for.cc: Likewise.
 654         * testsuite/30_threads/semaphore/try_acquire_posix.cc: Likewise.
 655
 656 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 657
 658         * testsuite/18_support/coroutines/95917.cc: Remove dg-options
 659         -std=gnu++2a.
 660         * testsuite/18_support/coroutines/hash.cc: Likewise.
 661         * testsuite/18_support/coroutines/lwg3460.cc: Likewise.
 662         * testsuite/18_support/destroying_delete.cc: Likewise.
 663         * testsuite/18_support/source_location/1.cc: Likewise.
 664         * testsuite/18_support/source_location/consteval.cc: Likewise.
 665         * testsuite/18_support/source_location/version.cc: Likewise.
 666         * testsuite/19_diagnostics/error_category/operators/three_way.cc:
 667         Likewise.
 668         * testsuite/19_diagnostics/error_code/operators/three_way.cc:
 669         Likewise.
 670         * testsuite/19_diagnostics/error_condition/operators/three_way.cc:
 671         Likewise.
 672         * testsuite/19_diagnostics/stacktrace/output.cc: Likewise.
 673         * testsuite/26_numerics/adjacent_difference/lwg2055.cc:
 674         Likewise.
 675         * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
 676         * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
 677         * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
 678         * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
 679         * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: Likewise.
 680         * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc:
 681         Likewise.
 682         * testsuite/28_regex/iterators/regex_iterator/lwg3719.cc:
 683         Likewise.
 684         * testsuite/28_regex/iterators/regex_token_iterator/lwg3719.cc:
 685         Likewise.
 686         * testsuite/28_regex/sub_match/compare_c++20.cc: Likewise.
 687         * testsuite/experimental/filesystem/iterators/106201.cc:
 688         Likewise.
 689         * testsuite/experimental/scopeguard/exit.cc: Likewise.
 690         * testsuite/experimental/scopeguard/uniqueres.cc: Likewise.
 691
 692 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 693
 694         * testsuite/30_threads/barrier/1.cc: Remove dg-options
 695         -std=gnu++20.
 696         * testsuite/30_threads/barrier/2.cc: Likewise.
 697         * testsuite/30_threads/barrier/arrive.cc: Likewise.
 698         * testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
 699         * testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
 700         * testsuite/30_threads/barrier/completion.cc: Likewise.
 701         * testsuite/30_threads/condition_variable/members/clock_neg.cc:
 702         Likewise.
 703         * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
 704         Likewise.
 705         * testsuite/30_threads/condition_variable_any/stop_token/1.cc:
 706         Likewise.
 707         * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
 708         Likewise.
 709         * testsuite/30_threads/future/members/clock_neg.cc: Likewise.
 710         * testsuite/30_threads/headers/stop_token/synopsis.cc: Likewise.
 711         * testsuite/30_threads/headers/thread/types_std_c++20.cc:
 712         Likewise.
 713         * testsuite/30_threads/jthread/1.cc: Likewise.
 714         * testsuite/30_threads/jthread/100612.cc: Likewise.
 715         * testsuite/30_threads/jthread/95989.cc: Likewise.
 716         * testsuite/30_threads/jthread/jthread.cc: Likewise.
 717         * testsuite/30_threads/jthread/version.cc: Likewise.
 718         * testsuite/30_threads/latch/1.cc: Likewise.
 719         * testsuite/30_threads/latch/2.cc: Likewise.
 720         * testsuite/30_threads/latch/3.cc: Likewise.
 721         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/clock_neg.cc:
 722         Likewise.
 723         * testsuite/30_threads/semaphore/1.cc: Likewise.
 724         * testsuite/30_threads/semaphore/2.cc: Likewise.
 725         * testsuite/30_threads/semaphore/least_max_value_neg.cc:
 726         Likewise.
 727         * testsuite/30_threads/semaphore/try_acquire_until.cc: Likewise.
 728         * testsuite/30_threads/shared_future/members/clock_neg.cc:
 729         Likewise.
 730         * testsuite/30_threads/shared_lock/locking/clock_neg.cc:
 731         Likewise.
 732         * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
 733         Likewise.
 734         * testsuite/30_threads/stop_token/1.cc: Likewise.
 735         * testsuite/30_threads/stop_token/2.cc: Likewise.
 736         * testsuite/30_threads/stop_token/stop_callback.cc: Likewise.
 737         * testsuite/30_threads/stop_token/stop_callback/deadlock.cc:
 738         Likewise.
 739         * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
 740         Likewise.
 741         * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc:
 742         Likewise.
 743         * testsuite/30_threads/stop_token/stop_callback/invoke.cc:
 744         Likewise.
 745         * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
 746         * testsuite/30_threads/stop_token/stop_source/assign.cc:
 747         Likewise.
 748         * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
 749         * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
 750         Likewise.
 751         * testsuite/30_threads/thread/id/operators_c++20.cc: Likewise.
 752         * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc:
 753         Likewise.
 754         * testsuite/30_threads/unique_lock/locking/clock_neg.cc:
 755         Likewise.
 756
 757 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 758
 759         * testsuite/27_io/basic_istream/extractors_character/char/lwg2499.cc:
 760         Remove dg-options -std=gnu++2a.
 761         * testsuite/27_io/basic_istream/extractors_character/char/lwg2499_neg.cc:
 762         Likewise.
 763         * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499.cc:
 764         Likewise.
 765         * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499_neg.cc:
 766         Likewise.
 767         * testsuite/27_io/basic_istringstream/cons/char/1.cc: Likewise.
 768         * testsuite/27_io/basic_istringstream/cons/wchar_t/1.cc:
 769         Likewise.
 770         * testsuite/27_io/basic_istringstream/str/char/2.cc: Likewise.
 771         * testsuite/27_io/basic_istringstream/str/wchar_t/2.cc:
 772         Likewise.
 773         * testsuite/27_io/basic_istringstream/view/char/1.cc: Likewise.
 774         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
 775         Likewise.
 776         * testsuite/27_io/basic_ostream/emit/1.cc: Likewise.
 777         * testsuite/27_io/basic_ostream/inserters_character/char/deleted.cc:
 778         Likewise.
 779         * testsuite/27_io/basic_ostream/inserters_character/wchar_t/deleted.cc:
 780         Likewise.
 781         * testsuite/27_io/basic_ostringstream/cons/char/1.cc: Likewise.
 782         * testsuite/27_io/basic_ostringstream/cons/wchar_t/1.cc:
 783         Likewise.
 784         * testsuite/27_io/basic_ostringstream/str/char/3.cc: Likewise.
 785         * testsuite/27_io/basic_ostringstream/str/wchar_t/3.cc:
 786         Likewise.
 787         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
 788         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
 789         Likewise.
 790         * testsuite/27_io/basic_stringbuf/cons/char/2.cc: Likewise.
 791         * testsuite/27_io/basic_stringbuf/cons/wchar_t/2.cc: Likewise.
 792         * testsuite/27_io/basic_stringbuf/str/char/4.cc: Likewise.
 793         * testsuite/27_io/basic_stringbuf/str/wchar_t/4.cc: Likewise.
 794         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
 795         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
 796         * testsuite/27_io/basic_stringstream/cons/char/1.cc: Likewise.
 797         * testsuite/27_io/basic_stringstream/cons/char/97719.cc:
 798         Likewise.
 799         * testsuite/27_io/basic_stringstream/cons/wchar_t/1.cc:
 800         Likewise.
 801         * testsuite/27_io/basic_stringstream/str/char/5.cc: Likewise.
 802         * testsuite/27_io/basic_stringstream/str/wchar_t/5.cc.cc:
 803         Likewise.
 804         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
 805         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
 806         Likewise.
 807         * testsuite/27_io/basic_syncbuf/1.cc: Likewise.
 808         * testsuite/27_io/basic_syncbuf/2.cc: Likewise.
 809         * testsuite/27_io/basic_syncbuf/basic_ops/1.cc: Likewise.
 810         * testsuite/27_io/basic_syncbuf/requirements/types.cc: Likewise.
 811         * testsuite/27_io/basic_syncbuf/sync_ops/1.cc: Likewise.
 812         * testsuite/27_io/basic_syncstream/1.cc: Likewise.
 813         * testsuite/27_io/basic_syncstream/2.cc: Likewise.
 814         * testsuite/27_io/basic_syncstream/basic_ops/1.cc: Likewise.
 815         * testsuite/27_io/basic_syncstream/requirements/types.cc:
 816         Likewise.
 817         * testsuite/27_io/filesystem/iterators/106201.cc: Likewise.
 818         * testsuite/27_io/filesystem/iterators/lwg3719.cc: Likewise.
 819         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc:
 820         Likewise.
 821         * testsuite/27_io/filesystem/path/nonmember/cmp_c++20.cc:
 822         Likewise.
 823
 824 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 825
 826         * testsuite/26_numerics/accumulate/constexpr.cc: Remove
 827         dg-options -std=gnu++2a.
 828         * testsuite/26_numerics/accumulate/lwg2055.cc: Likewise.
 829         * testsuite/26_numerics/adjacent_difference/constexpr.cc:
 830         Likewise.
 831         * testsuite/26_numerics/bit/bit.cast/105027.cc: Likewise.
 832         * testsuite/26_numerics/bit/bit.cast/bit_cast.cc: Likewise.
 833         * testsuite/26_numerics/bit/bit.cast/version.cc: Likewise.
 834         * testsuite/26_numerics/bit/bit.count/countl_one.cc: Likewise.
 835         * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc:
 836         Likewise.
 837         * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: Likewise.
 838         * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: Likewise.
 839         * testsuite/26_numerics/bit/bit.pow.two/lwg3656.cc: Likewise.
 840         * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
 841         * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
 842         * testsuite/26_numerics/bit/header-2.cc: Likewise.
 843         * testsuite/26_numerics/bit/header.cc: Likewise.
 844         * testsuite/26_numerics/complex/1.cc: Likewise.
 845         * testsuite/26_numerics/complex/2.cc: Likewise.
 846         * testsuite/26_numerics/complex/comparison_operators/more_constexpr.cc:
 847         Likewise.
 848         * testsuite/26_numerics/complex/operators/more_constexpr.cc:
 849         Likewise.
 850         * testsuite/26_numerics/complex/requirements/more_constexpr.cc:
 851         Likewise.
 852         * testsuite/26_numerics/complex/value_operations/more_constexpr.cc:
 853         Likewise.
 854         * testsuite/26_numerics/endian/1.cc: Likewise.
 855         * testsuite/26_numerics/endian/2.cc: Likewise.
 856         * testsuite/26_numerics/endian/3.cc: Likewise.
 857         * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
 858         * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
 859         * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
 860         * testsuite/26_numerics/inner_product/lwg2055.cc: Likewise.
 861         * testsuite/26_numerics/iota/constexpr.cc: Likewise.
 862         * testsuite/26_numerics/lerp/1.cc: Likewise.
 863         * testsuite/26_numerics/lerp/constexpr.cc: Likewise.
 864         * testsuite/26_numerics/lerp/version.cc: Likewise.
 865         * testsuite/26_numerics/midpoint/floating.cc: Likewise.
 866         * testsuite/26_numerics/midpoint/integral.cc: Likewise.
 867         * testsuite/26_numerics/midpoint/pointer.cc: Likewise.
 868         * testsuite/26_numerics/midpoint/pointer_neg.cc: Likewise.
 869         * testsuite/26_numerics/midpoint/version.cc: Likewise.
 870         * testsuite/26_numerics/numbers/1.cc: Likewise.
 871         * testsuite/26_numerics/numbers/2.cc: Likewise.
 872         * testsuite/26_numerics/numbers/3.cc: Likewise.
 873         * testsuite/26_numerics/numbers/float128.cc: Likewise.
 874         * testsuite/26_numerics/numbers/nonfloat_neg.cc: Likewise.
 875         * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
 876         * testsuite/26_numerics/partial_sum/lwg2055.cc: Likewise.
 877         * testsuite/26_numerics/random/concept.cc: Likewise.
 878         * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
 879         * testsuite/26_numerics/slice/compare.cc: Likewise.
 880         * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc:
 881         Likewise.
 882         * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc:
 883         Likewise.
 884         * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
 885
 886 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 887
 888         * testsuite/24_iterators/aliases.cc: Remove dg-options
 889         -std=gnu++2a.
 890         * testsuite/24_iterators/associated_types/incrementable.traits.cc:
 891         Likewise.
 892         * testsuite/24_iterators/associated_types/iterator.traits.cc:
 893         Likewise.
 894         * testsuite/24_iterators/associated_types/readable.traits.cc:
 895         Likewise.
 896         * testsuite/24_iterators/back_insert_iterator/constexpr.cc:
 897         Likewise.
 898         * testsuite/24_iterators/back_insert_iterator/pr93884.cc:
 899         Likewise.
 900         * testsuite/24_iterators/bidirectional/concept.cc: Likewise.
 901         * testsuite/24_iterators/common_iterator/1.cc: Likewise.
 902         * testsuite/24_iterators/common_iterator/100823.cc: Likewise.
 903         * testsuite/24_iterators/common_iterator/2.cc: Likewise.
 904         * testsuite/24_iterators/contiguous/concept.cc: Likewise.
 905         * testsuite/24_iterators/contiguous/tag.cc: Likewise.
 906         * testsuite/24_iterators/counted_iterator/1.cc: Likewise.
 907         * testsuite/24_iterators/counted_iterator/lwg3389.cc: Likewise.
 908         * testsuite/24_iterators/counted_iterator/lwg3643.cc: Likewise.
 909         * testsuite/24_iterators/customization_points/92894.cc:
 910         Likewise.
 911         * testsuite/24_iterators/customization_points/iter_move.cc:
 912         Likewise.
 913         * testsuite/24_iterators/customization_points/iter_swap.cc:
 914         Likewise.
 915         * testsuite/24_iterators/customization_points/lwg3420.cc:
 916         Likewise.
 917         * testsuite/24_iterators/forward/concept.cc: Likewise.
 918         * testsuite/24_iterators/front_insert_iterator/constexpr.cc:
 919         Likewise.
 920         * testsuite/24_iterators/front_insert_iterator/pr93884.cc:
 921         Likewise.
 922         * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
 923         Likewise.
 924         * testsuite/24_iterators/indirect_callable/92894.cc: Likewise.
 925         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
 926         Likewise.
 927         * testsuite/24_iterators/indirect_callable/projected.cc:
 928         Likewise.
 929         * testsuite/24_iterators/input/concept.cc: Likewise.
 930         * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
 931         * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
 932         Likewise.
 933         * testsuite/24_iterators/istream_iterator/sentinel.cc: Likewise.
 934         * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
 935         Likewise.
 936         * testsuite/24_iterators/istreambuf_iterator/sentinel.cc:
 937         Likewise.
 938         * testsuite/24_iterators/move_iterator/cust.cc: Likewise.
 939         * testsuite/24_iterators/move_iterator/dr3435.cc: Likewise.
 940         * testsuite/24_iterators/move_iterator/input_iterator.cc:
 941         Likewise.
 942         * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
 943         * testsuite/24_iterators/move_iterator/lwg3391.cc: Likewise.
 944         * testsuite/24_iterators/move_iterator/move_only.cc: Likewise.
 945         * testsuite/24_iterators/move_iterator/p2520r0.cc: Likewise.
 946         * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
 947         Likewise.
 948         * testsuite/24_iterators/move_iterator/sentinel.cc: Likewise.
 949         * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: Likewise.
 950         * testsuite/24_iterators/output/concept.cc: Likewise.
 951         * testsuite/24_iterators/random_access/concept.cc: Likewise.
 952         * testsuite/24_iterators/range_access/range_access_cpp20.cc:
 953         Likewise.
 954         * testsuite/24_iterators/range_access/range_access_cpp20_neg.cc:
 955         Likewise.
 956         * testsuite/24_iterators/range_operations/100768.cc: Likewise.
 957         * testsuite/24_iterators/range_operations/advance.cc: Likewise.
 958         * testsuite/24_iterators/range_operations/advance_overflow.cc:
 959         Likewise.
 960         * testsuite/24_iterators/range_operations/distance.cc: Likewise.
 961         * testsuite/24_iterators/range_operations/lwg3392.cc: Likewise.
 962         * testsuite/24_iterators/range_operations/next.cc: Likewise.
 963         * testsuite/24_iterators/range_operations/prev.cc: Likewise.
 964         * testsuite/24_iterators/reverse_iterator/cust.cc: Likewise.
 965         * testsuite/24_iterators/reverse_iterator/dr3435.cc: Likewise.
 966         * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
 967         Likewise.
 968
 969 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 970
 971         * testsuite/23_containers/array/comparison_operators/96851.cc:
 972         Remove dg-options -std=gnu++2a.
 973         * testsuite/23_containers/array/comparison_operators/constexpr.cc:
 974         Likewise.
 975         * testsuite/23_containers/array/creation/1.cc: Likewise.
 976         * testsuite/23_containers/array/creation/110167.cc: Likewise.
 977         * testsuite/23_containers/array/creation/2.cc: Likewise.
 978         * testsuite/23_containers/array/creation/3_neg.cc: Likewise.
 979         * testsuite/23_containers/array/requirements/constexpr_fill.cc:
 980         Likewise.
 981         * testsuite/23_containers/array/requirements/constexpr_swap.cc:
 982         Likewise.
 983         * testsuite/23_containers/deque/48101-3_neg.cc: Likewise.
 984         * testsuite/23_containers/deque/erasure.cc: Likewise.
 985         * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
 986         Likewise.
 987         * testsuite/23_containers/deque/operators/cmp_c++20.cc:
 988         Likewise.
 989         * testsuite/23_containers/forward_list/48101-3_neg.cc: Likewise.
 990         * testsuite/23_containers/forward_list/cmp_c++20.cc: Likewise.
 991         * testsuite/23_containers/forward_list/erasure.cc: Likewise.
 992         * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
 993         Likewise.
 994         * testsuite/23_containers/forward_list/operations/remove_cxx20_return.cc:
 995         Likewise.
 996         * testsuite/23_containers/forward_list/operations/unique_cxx20_return.cc:
 997         Likewise.
 998         * testsuite/23_containers/list/48101-3_neg.cc: Likewise.
 999         * testsuite/23_containers/list/cmp_c++20.cc: Likewise.
1000         * testsuite/23_containers/list/erasure.cc: Likewise.
1001         * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
1002         Likewise.
1003         * testsuite/23_containers/list/operations/remove_cxx20_return.cc:
1004         Likewise.
1005         * testsuite/23_containers/list/operations/unique_cxx20_return.cc:
1006         Likewise.
1007         * testsuite/23_containers/map/48101-3_neg.cc: Likewise.
1008         * testsuite/23_containers/map/erasure.cc: Likewise.
1009         * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
1010         Likewise.
1011         * testsuite/23_containers/map/operations/contains.cc: Likewise.
1012         * testsuite/23_containers/map/operators/cmp_c++20.cc: Likewise.
1013         * testsuite/23_containers/multimap/48101-3_neg.cc: Likewise.
1014         * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
1015         Likewise.
1016         * testsuite/23_containers/multimap/operations/contains.cc:
1017         Likewise.
1018         * testsuite/23_containers/multimap/operators/cmp_c++20.cc:
1019         Likewise.
1020         * testsuite/23_containers/multiset/48101-3_neg.cc: Likewise.
1021         * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
1022         Likewise.
1023         * testsuite/23_containers/multiset/operations/contains.cc:
1024         Likewise.
1025         * testsuite/23_containers/multiset/operators/cmp_c++20.cc:
1026         Likewise.
1027         * testsuite/23_containers/priority_queue/92878_92947.cc:
1028         Likewise.
1029         * testsuite/23_containers/queue/92878_92947.cc: Likewise.
1030         * testsuite/23_containers/queue/cmp_c++20.cc: Likewise.
1031         * testsuite/23_containers/set/48101-3_neg.cc: Likewise.
1032         * testsuite/23_containers/set/erasure.cc: Likewise.
1033         * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
1034         Likewise.
1035         * testsuite/23_containers/set/operations/contains.cc: Likewise.
1036         * testsuite/23_containers/set/operators/cmp_c++20.cc: Likewise.
1037         * testsuite/23_containers/span/1.cc: Likewise.
1038         * testsuite/23_containers/span/101411.cc: Likewise.
1039         * testsuite/23_containers/span/2.cc: Likewise.
1040         * testsuite/23_containers/span/deduction.cc: Likewise.
1041         * testsuite/23_containers/span/explicit.cc: Likewise.
1042         * testsuite/23_containers/span/layout_compat.cc: Likewise.
1043         * testsuite/23_containers/span/lwg3255.cc: Likewise.
1044         * testsuite/23_containers/span/nothrow_cons.cc: Likewise.
1045         * testsuite/23_containers/span/trivially_copyable.cc: Likewise.
1046         * testsuite/23_containers/stack/92878_92947.cc: Likewise.
1047         * testsuite/23_containers/stack/cmp_c++20.cc: Likewise.
1048         * testsuite/23_containers/unordered_map/48101-3_neg.cc:
1049         Likewise.
1050         * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
1051         * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
1052         Likewise.
1053         * testsuite/23_containers/unordered_map/operations/1.cc:
1054         Likewise.
1055         * testsuite/23_containers/unordered_map/operations/contains.cc:
1056         Likewise.
1057         * testsuite/23_containers/unordered_multimap/48101-3_neg.cc:
1058         Likewise.
1059         * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
1060         Likewise.
1061         * testsuite/23_containers/unordered_multimap/operations/1.cc:
1062         Likewise.
1063         * testsuite/23_containers/unordered_multimap/operations/contains.cc:
1064         Likewise.
1065         * testsuite/23_containers/unordered_multiset/48101-3_neg.cc:
1066         Likewise.
1067         * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
1068         Likewise.
1069         * testsuite/23_containers/unordered_multiset/operations/1.cc:
1070         Likewise.
1071         * testsuite/23_containers/unordered_multiset/operations/contains.cc:
1072         Likewise.
1073         * testsuite/23_containers/unordered_set/48101-3_neg.cc:
1074         Likewise.
1075         * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
1076         * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
1077         Likewise.
1078         * testsuite/23_containers/unordered_set/operations/1.cc:
1079         Likewise.
1080         * testsuite/23_containers/unordered_set/operations/contains.cc:
1081         Likewise.
1082         * testsuite/23_containers/vector/48101-3_neg.cc: Likewise.
1083         * testsuite/23_containers/vector/bool/capacity/constexpr.cc:
1084         Likewise.
1085         * testsuite/23_containers/vector/bool/cmp_c++20.cc: Likewise.
1086         * testsuite/23_containers/vector/bool/cons/constexpr.cc:
1087         Likewise.
1088         * testsuite/23_containers/vector/bool/element_access/constexpr.cc:
1089         Likewise.
1090         * testsuite/23_containers/vector/bool/iterator_c++20.cc:
1091         Likewise.
1092         * testsuite/23_containers/vector/bool/modifiers/assign/constexpr.cc:
1093         Likewise.
1094         * testsuite/23_containers/vector/bool/modifiers/constexpr.cc:
1095         Likewise.
1096         * testsuite/23_containers/vector/bool/modifiers/swap/constexpr.cc:
1097         Likewise.
1098         * testsuite/23_containers/vector/capacity/constexpr.cc:
1099         Likewise.
1100         * testsuite/23_containers/vector/cmp_c++20.cc: Likewise.
1101         * testsuite/23_containers/vector/cons/constexpr.cc: Likewise.
1102         * testsuite/23_containers/vector/data_access/constexpr.cc:
1103         Likewise.
1104         * testsuite/23_containers/vector/element_access/constexpr.cc:
1105         Likewise.
1106         * testsuite/23_containers/vector/erasure.cc: Likewise.
1107         * testsuite/23_containers/vector/modifiers/assign/constexpr.cc:
1108         Likewise.
1109         * testsuite/23_containers/vector/modifiers/constexpr.cc:
1110         Likewise.
1111         * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
1112         Likewise.
1113         * testsuite/23_containers/vector/modifiers/swap/constexpr.cc:
1114         Likewise.
1115         * testsuite/23_containers/vector/requirements/version.cc:
1116         Likewise.
1117
1118 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1119
1120         * testsuite/21_strings/basic_string/cons/char/105995.cc: Remove
1121         dg-options -std=gnu++20.
1122         * testsuite/21_strings/basic_string/cons/char/constexpr.cc:
1123         Likewise.
1124         * testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc:
1125         Likewise.
1126         * testsuite/21_strings/basic_string/erasure.cc: Likewise.
1127         * testsuite/21_strings/basic_string/hash/hash_char8_t.cc:
1128         Likewise.
1129         * testsuite/21_strings/basic_string/literals/constexpr.cc:
1130         Likewise.
1131         * testsuite/21_strings/basic_string/modifiers/constexpr.cc:
1132         Likewise.
1133         * testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc:
1134         Likewise.
1135         * testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc:
1136         Likewise.
1137         * testsuite/21_strings/basic_string/operations/ends_with/char.cc:
1138         Likewise.
1139         * testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc:
1140         Likewise.
1141         * testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc:
1142         Likewise.
1143         * testsuite/21_strings/basic_string/operations/starts_with/char.cc:
1144         Likewise.
1145         * testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc:
1146         Likewise.
1147         * testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc:
1148         Likewise.
1149         * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc:
1150         Likewise.
1151         * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
1152         Likewise.
1153         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
1154         Likewise.
1155         * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
1156         Likewise.
1157         * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc:
1158         Likewise.
1159         * testsuite/21_strings/basic_string_view/operations/ends_with/char.cc:
1160         Likewise.
1161         * testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc:
1162         Likewise.
1163         * testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc:
1164         Likewise.
1165         * testsuite/21_strings/basic_string_view/operations/starts_with/char.cc:
1166         Likewise.
1167         * testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc:
1168         Likewise.
1169         * testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc:
1170         Likewise.
1171         * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
1172         Likewise.
1173         * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
1174         Likewise.
1175         * testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc:
1176         Likewise.
1177         * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
1178         Likewise.
1179
1180 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1181
1182         * testsuite/20_util/allocator/105975.cc: Remove dg-options
1183         -std=gnu++2a.
1184         * testsuite/20_util/allocator/rebind_c++20.cc: Likewise.
1185         * testsuite/20_util/allocator/requirements/constexpr.cc:
1186         Likewise.
1187         * testsuite/20_util/allocator/requirements/typedefs_c++20.cc:
1188         Likewise.
1189         * testsuite/20_util/allocator_traits/header-2.cc: Likewise.
1190         * testsuite/20_util/allocator_traits/header.cc: Likewise.
1191         * testsuite/20_util/allocator_traits/members/92878_92947.cc:
1192         Likewise.
1193         * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
1194         * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
1195         * testsuite/20_util/assume_aligned/1.cc: Likewise.
1196         * testsuite/20_util/assume_aligned/2_neg.cc: Likewise.
1197         * testsuite/20_util/assume_aligned/3.cc: Likewise.
1198         * testsuite/20_util/assume_aligned/97132.cc: Likewise.
1199         * testsuite/20_util/bind/constexpr.cc: Likewise.
1200         * testsuite/20_util/bitset/operations/96303.cc: Likewise.
1201         * testsuite/20_util/common_reference/100894.cc: Likewise.
1202         * testsuite/20_util/common_reference/requirements/alias_decl.cc:
1203         Likewise.
1204         * testsuite/20_util/common_reference/requirements/explicit_instantiation.cc:
1205         Likewise.
1206         * testsuite/20_util/common_reference/requirements/typedefs.cc:
1207         Likewise.
1208         * testsuite/20_util/duration/comparison_operators/three_way.cc:
1209         Likewise.
1210         * testsuite/20_util/exchange/constexpr.cc: Likewise.
1211         * testsuite/20_util/exchange/noexcept.cc: Likewise.
1212         * testsuite/20_util/from_chars/1_c++20_neg.cc: Likewise.
1213         * testsuite/20_util/from_chars/compare.cc: Likewise.
1214         * testsuite/20_util/function_objects/bind_front/1.cc: Likewise.
1215         * testsuite/20_util/function_objects/bind_front/107784.cc:
1216         Likewise.
1217         * testsuite/20_util/function_objects/bind_front/111327.cc:
1218         Likewise.
1219         * testsuite/20_util/function_objects/bind_front/2.cc: Likewise.
1220         * testsuite/20_util/function_objects/bind_front/97101.cc:
1221         Likewise.
1222         * testsuite/20_util/function_objects/bind_front/constexpr.cc:
1223         Likewise.
1224         * testsuite/20_util/function_objects/constexpr_searcher.cc:
1225         Likewise.
1226         * testsuite/20_util/function_objects/identity/1.cc: Likewise.
1227         * testsuite/20_util/function_objects/invoke/constexpr.cc:
1228         Likewise.
1229         * testsuite/20_util/function_objects/mem_fn/constexpr.cc:
1230         Likewise.
1231         * testsuite/20_util/function_objects/not_fn/constexpr.cc:
1232         Likewise.
1233         * testsuite/20_util/integer_comparisons/1.cc: Likewise.
1234         * testsuite/20_util/integer_comparisons/2.cc: Likewise.
1235         * testsuite/20_util/integer_comparisons/equal.cc: Likewise.
1236         * testsuite/20_util/integer_comparisons/equal_neg.cc: Likewise.
1237         * testsuite/20_util/integer_comparisons/greater.cc: Likewise.
1238         * testsuite/20_util/integer_comparisons/greater_equal.cc:
1239         Likewise.
1240         * testsuite/20_util/integer_comparisons/greater_equal_neg.cc:
1241         Likewise.
1242         * testsuite/20_util/integer_comparisons/greater_neg.cc:
1243         Likewise.
1244         * testsuite/20_util/integer_comparisons/in_range.cc: Likewise.
1245         * testsuite/20_util/integer_comparisons/in_range_neg.cc:
1246         Likewise.
1247         * testsuite/20_util/integer_comparisons/less.cc: Likewise.
1248         * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
1249         * testsuite/20_util/integer_comparisons/less_equal_neg.cc:
1250         Likewise.
1251         * testsuite/20_util/integer_comparisons/less_neg.cc: Likewise.
1252         * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
1253         * testsuite/20_util/integer_comparisons/not_equal_neg.cc:
1254         Likewise.
1255         * testsuite/20_util/is_bounded_array/requirements/explicit_instantiation.cc:
1256         Likewise.
1257         * testsuite/20_util/is_bounded_array/requirements/typedefs.cc:
1258         Likewise.
1259         * testsuite/20_util/is_bounded_array/value.cc: Likewise.
1260         * testsuite/20_util/is_constant_evaluated/1.cc: Likewise.
1261         * testsuite/20_util/is_constant_evaluated/noexcept.cc: Likewise.
1262         * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
1263         * testsuite/20_util/is_layout_compatible/is_corresponding_member.cc:
1264         Likewise.
1265         * testsuite/20_util/is_layout_compatible/value.cc: Likewise.
1266         * testsuite/20_util/is_layout_compatible/version.cc: Likewise.
1267         * testsuite/20_util/is_nothrow_constructible/value_c++20.cc:
1268         Likewise.
1269         * testsuite/20_util/is_nothrow_convertible/requirements/explicit_instantiation.cc:
1270         Likewise.
1271         * testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
1272         Likewise.
1273         * testsuite/20_util/is_nothrow_convertible/value.cc: Likewise.
1274         * testsuite/20_util/is_pod/deprecated-2a.cc: Likewise.
1275         * testsuite/20_util/is_pointer_interconvertible/value.cc:
1276         Likewise.
1277         * testsuite/20_util/is_pointer_interconvertible/version.cc:
1278         Likewise.
1279         * testsuite/20_util/is_pointer_interconvertible/with_class.cc:
1280         Likewise.
1281         * testsuite/20_util/is_unbounded_array/requirements/explicit_instantiation.cc:
1282         Likewise.
1283         * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc:
1284         Likewise.
1285         * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
1286         * testsuite/20_util/optional/assignment/92878_92947.cc:
1287         Likewise.
1288         * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
1289         * testsuite/20_util/optional/constexpr/assign.cc: Likewise.
1290         * testsuite/20_util/optional/constexpr/cons/conv.cc: Likewise.
1291         * testsuite/20_util/optional/constexpr/modifiers.cc: Likewise.
1292         * testsuite/20_util/optional/constexpr/swap.cc: Likewise.
1293         * testsuite/20_util/optional/relops/96269.cc: Likewise.
1294         * testsuite/20_util/optional/relops/three_way.cc: Likewise.
1295         * testsuite/20_util/pair/comparison_operators/constexpr_c++20.cc:
1296         Likewise.
1297         * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
1298         * testsuite/20_util/pair/constexpr_assign.cc: Likewise.
1299         * testsuite/20_util/pair/constexpr_swap.cc: Likewise.
1300         * testsuite/20_util/pair/requirements/structural.cc: Likewise.
1301         * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc:
1302         Likewise.
1303         * testsuite/20_util/polymorphic_allocator/allocate_object.cc:
1304         Likewise.
1305         * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc:
1306         Likewise.
1307         * testsuite/20_util/polymorphic_allocator/lwg3237.cc: Likewise.
1308         * testsuite/20_util/reference_wrapper/constexpr.cc: Likewise.
1309         * testsuite/20_util/reference_wrapper/incomplete.cc: Likewise.
1310         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc:
1311         Likewise.
1312         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
1313         Likewise.
1314         * testsuite/20_util/remove_cvref/value.cc: Likewise.
1315         * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc:
1316         Likewise.
1317         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
1318         Likewise.
1319         * testsuite/20_util/shared_ptr/casts/rval.cc: Likewise.
1320         * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc:
1321         Likewise.
1322         * testsuite/20_util/shared_ptr/cons/alias-rval.cc: Likewise.
1323         * testsuite/20_util/shared_ptr/creation/92878_92947.cc:
1324         Likewise.
1325         * testsuite/20_util/shared_ptr/creation/array.cc: Likewise.
1326         * testsuite/20_util/shared_ptr/creation/overwrite.cc: Likewise.
1327         * testsuite/20_util/shared_ptr/creation/version.cc: Likewise.
1328         * testsuite/20_util/time_point/4.cc: Likewise.
1329         * testsuite/20_util/time_point/comparison_operators/three_way.cc:
1330         Likewise.
1331         * testsuite/20_util/to_address/1.cc: Likewise.
1332         * testsuite/20_util/to_address/1_neg.cc: Likewise.
1333         * testsuite/20_util/to_address/debug.cc: Likewise.
1334         * testsuite/20_util/to_address/lwg3545.cc: Likewise.
1335         * testsuite/20_util/to_chars/compare.cc: Likewise.
1336         * testsuite/20_util/tuple/comparison_operators/three_way.cc:
1337         Likewise.
1338         * testsuite/20_util/tuple/cons/102270.cc: Likewise.
1339         * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc:
1340         Likewise.
1341         * testsuite/20_util/tuple/constexpr_swap.cc: Likewise.
1342         * testsuite/20_util/type_identity/requirements/alias_decl.cc:
1343         Likewise.
1344         * testsuite/20_util/type_identity/requirements/explicit_instantiation.cc:
1345         Likewise.
1346         * testsuite/20_util/type_identity/requirements/typedefs.cc:
1347         Likewise.
1348         * testsuite/20_util/typeindex/comparison_operators_c++20.cc:
1349         Likewise.
1350         * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc:
1351         Likewise.
1352         * testsuite/20_util/unique_ptr/creation/92878_92947.cc:
1353         Likewise.
1354         * testsuite/20_util/unique_ptr/creation/for_overwrite.cc:
1355         Likewise.
1356         * testsuite/20_util/unique_ptr/creation/for_overwrite__neg.cc:
1357         Likewise.
1358         * testsuite/20_util/unique_ptr/io/lwg2948.cc: Likewise.
1359         * testsuite/20_util/unwrap_reference/1.cc: Likewise.
1360         * testsuite/20_util/unwrap_reference/2.cc: Likewise.
1361         * testsuite/20_util/unwrap_reference/3.cc: Likewise.
1362         * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
1363         * testsuite/20_util/uses_allocator/lwg3527.cc: Likewise.
1364         * testsuite/20_util/uses_allocator/make_obj.cc: Likewise.
1365         * testsuite/20_util/uses_allocator/uninitialized_construct.cc:
1366         Likewise.
1367         * testsuite/20_util/variant/92878_92947.cc: Likewise.
1368         * testsuite/20_util/variant/95915.cc: Likewise.
1369         * testsuite/20_util/variant/constexpr.cc: Likewise.
1370         * testsuite/20_util/variant/relops/three_way.cc: Likewise.
1371         * testsuite/20_util/variant/visit_neg.cc: Likewise.
1372         * testsuite/20_util/variant/visit_r.cc: Likewise.
1373         * testsuite/20_util/weak_ptr/atomic_weak_ptr.cc: Likewise.
1374
1375 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1376
1377         * testsuite/18_support/comparisons/algorithms/fallback.cc:
1378         Remove dg-options -std=gnu++2a.
1379         * testsuite/18_support/comparisons/algorithms/partial_order.cc:
1380         Likewise.
1381         * testsuite/18_support/comparisons/algorithms/strong_order.cc:
1382         Likewise.
1383         * testsuite/18_support/comparisons/algorithms/strong_order_floats.cc:
1384         Likewise.
1385         * testsuite/18_support/comparisons/algorithms/weak_order.cc:
1386         Likewise.
1387         * testsuite/18_support/comparisons/categories/94565.cc:
1388         Likewise.
1389         * testsuite/18_support/comparisons/categories/partialord.cc:
1390         Likewise.
1391         * testsuite/18_support/comparisons/categories/strongord.cc:
1392         Likewise.
1393         * testsuite/18_support/comparisons/categories/weakord.cc:
1394         Likewise.
1395         * testsuite/18_support/comparisons/categories/zero_neg.cc:
1396         Likewise.
1397         * testsuite/18_support/comparisons/common/1.cc: Likewise.
1398         * testsuite/18_support/comparisons/object/93479.cc: Likewise.
1399         * testsuite/18_support/comparisons/object/lwg3530.cc: Likewise.
1400
1401 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1402
1403         * testsuite/29_atomics/atomic/compare_exchange_padding.cc:
1404         Remove dg-options -std=gnu++2a.
1405         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
1406         * testsuite/29_atomics/atomic/lock_free_aliases.cc: Likewise.
1407         * testsuite/29_atomics/atomic/requirements/types_neg.cc:
1408         Likewise.
1409         * testsuite/29_atomics/atomic/wait_notify/1.cc: Likewise.
1410         * testsuite/29_atomics/atomic/wait_notify/100334.cc: Likewise.
1411         * testsuite/29_atomics/atomic/wait_notify/102994.cc: Likewise.
1412         * testsuite/29_atomics/atomic/wait_notify/2.cc: Likewise.
1413         * testsuite/29_atomics/atomic/wait_notify/bool.cc: Likewise.
1414         * testsuite/29_atomics/atomic/wait_notify/generic.cc: Likewise.
1415         * testsuite/29_atomics/atomic/wait_notify/pointers.cc: Likewise.
1416         * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Likewise.
1417         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Likewise.
1418         * testsuite/29_atomics/atomic_flag/test/implicit.cc: Likewise.
1419         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc: Likewise.
1420         * testsuite/29_atomics/atomic_float/1.cc: Likewise.
1421         * testsuite/29_atomics/atomic_float/95282.cc: Likewise.
1422         * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
1423         * testsuite/29_atomics/atomic_float/value_init.cc: Likewise.
1424         * testsuite/29_atomics/atomic_float/wait_notify.cc: Likewise.
1425         * testsuite/29_atomics/atomic_integral/cons/value_init.cc:
1426         Likewise.
1427         * testsuite/29_atomics/atomic_integral/wait_notify.cc: Likewise.
1428         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc:
1429         Likewise.
1430         * testsuite/29_atomics/atomic_ref/deduction.cc: Likewise.
1431         * testsuite/29_atomics/atomic_ref/float.cc: Likewise.
1432         * testsuite/29_atomics/atomic_ref/generic.cc: Likewise.
1433         * testsuite/29_atomics/atomic_ref/integral.cc: Likewise.
1434         * testsuite/29_atomics/atomic_ref/pointer.cc: Likewise.
1435         * testsuite/29_atomics/atomic_ref/requirements.cc: Likewise.
1436         * testsuite/29_atomics/headers/atomic/types_std_c++20.cc:
1437         Likewise.
1438         * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc:
1439         Likewise.
1440         * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc:
1441         Likewise.
1442         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc:
1443         Likewise.
1444
1445 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1446
1447         * testsuite/27_io/basic_filebuf/native_handle/char/1.cc: New test.
1448         * testsuite/27_io/basic_filebuf/native_handle/wchar_t/1.cc: New test.
1449
1450 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1451
1452         * acinclude.m4 (GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES): New
1453         macro.
1454         * config.h.in: Regenerate.
1455         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export new
1456         basic_filebuf members.
1457         * config/io/basic_file_stdio.cc (__basic_file::native_handle):
1458         Define new function.
1459         * config/io/basic_file_stdio.h (__basic_file::native_handle):
1460         Declare new function.
1461         * configure: Regenerate.
1462         * configure.ac: Use GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES.
1463         * include/bits/version.def (fstream_native_handles): New macro.
1464         * include/bits/version.h: Regenerate.
1465         * include/std/fstream (basic_filebuf::native_handle)
1466         (basic_fstream::native_handle, basic_ifstream::native_handle)
1467         (basic_ofstream::native_handle): New functions.
1468         * src/c++11/Makefile.am: Move compilation of basic_file.cc,
1469         locale_init.cc and localename.cc to here.
1470         * src/c++11/Makefile.in: Regenerate.
1471         * src/c++98/locale_init.cc: Moved to...
1472         * src/c++11/locale_init.cc: ...here.
1473         * src/c++98/localename.cc: Moved to...
1474         * src/c++11/localename.cc: ...here.
1475         * src/c++98/Makefile.am: Remove basic_file.cc, locale_init.cc
1476         and localename.cc from here.
1477         * src/c++98/Makefile.in: Regenerate.
1478         * testsuite/27_io/basic_filebuf/native_handle/version.cc: New test.
1479         * testsuite/27_io/basic_fstream/native_handle/char/1.cc: New test.
1480         * testsuite/27_io/basic_fstream/native_handle/wchar_t/1.cc: New test.
1481         * testsuite/27_io/basic_ifstream/native_handle/char/1.cc: New test.
1482         * testsuite/27_io/basic_ifstream/native_handle/wchar_t/1.cc: New test.
1483         * testsuite/27_io/basic_ofstream/native_handle/char/1.cc: New test.
1484         * testsuite/27_io/basic_ofstream/native_handle/wchar_t/1.cc: New test.
1485
1486 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1487
1488         * testsuite/libstdc++-dg/conformance.exp: Add log line when
1489         using testsuite_files.
1490
1491 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1492
1493         * testsuite/20_util/shared_ptr/atomic/3.cc: Simplify dg
1494         directives.
1495         * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
1496         Likewise.
1497         * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc:
1498         Likewise.
1499         * testsuite/20_util/synchronized_pool_resource/allocate.cc:
1500         Likewise.
1501         * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
1502         Likewise.
1503         * testsuite/20_util/synchronized_pool_resource/cons.cc:
1504         Likewise.
1505         * testsuite/20_util/synchronized_pool_resource/cons_single.cc:
1506         Likewise.
1507         * testsuite/20_util/synchronized_pool_resource/is_equal.cc:
1508         Likewise.
1509         * testsuite/20_util/synchronized_pool_resource/multithreaded.cc:
1510         Likewise.
1511         * testsuite/20_util/synchronized_pool_resource/options.cc:
1512         Likewise.
1513         * testsuite/20_util/synchronized_pool_resource/release.cc:
1514         Likewise.
1515         * testsuite/20_util/synchronized_pool_resource/release_single.cc:
1516         Likewise.
1517         * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
1518         Likewise.
1519         * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
1520         Likewise.
1521         * testsuite/30_threads/stop_token/stop_callback/destroy.cc:
1522         Likewise.
1523
1524 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1525
1526         * testsuite/23_containers/span/back_assert_neg.cc: Remove
1527         dg-options and add effective target selector to dg-do. Add
1528         no_pch.
1529         * testsuite/23_containers/span/back_neg.cc: Likewise.
1530         * testsuite/23_containers/span/cons_1_assert_neg.cc: Likewise.
1531         * testsuite/23_containers/span/cons_2_assert_neg.cc: Likewise.
1532         * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1533         * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1534         * testsuite/23_containers/span/first_neg.cc: Likewise.
1535         * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1536         * testsuite/23_containers/span/front_neg.cc: Likewise.
1537         * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1538         * testsuite/23_containers/span/index_op_neg.cc: Likewise.
1539         * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1540         * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1541         * testsuite/23_containers/span/last_neg.cc: Likewise.
1542         * testsuite/23_containers/span/subspan_2_assert_neg.cc:
1543         Likewise.
1544         * testsuite/23_containers/span/subspan_3_assert_neg.cc:
1545         Likewise.
1546         * testsuite/23_containers/span/subspan_4_assert_neg.cc:
1547         Likewise.
1548         * testsuite/23_containers/span/subspan_5_assert_neg.cc:
1549         Likewise.
1550         * testsuite/23_containers/span/subspan_6_assert_neg.cc:
1551         Likewise.
1552         * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1553         * testsuite/23_containers/span/subspan_neg.cc: Likewise.
1554         * testsuite/24_iterators/range_operations/advance_debug_neg.cc:
1555         Likewise.
1556
1557 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1558
1559         * testsuite/18_support/headers/limits/synopsis_cxx23.cc: Remove
1560         dg-options.
1561         * testsuite/18_support/headers/stdfloat/types_std.cc: Likewise.
1562         * testsuite/18_support/type_info/constexpr.cc: Likewise.
1563         * testsuite/19_diagnostics/stacktrace/current.cc: Likewise.
1564         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
1565         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
1566         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Likewise.
1567         * testsuite/19_diagnostics/stacktrace/version.cc: Likewise.
1568         * testsuite/20_util/aligned_storage/deprecated-2b.cc: Likewise.
1569         * testsuite/20_util/aligned_union/deprecated-2b.cc: Likewise.
1570         * testsuite/20_util/bitset/access/constexpr.cc: Likewise.
1571         * testsuite/20_util/bitset/cons/constexpr_c++23.cc: Likewise.
1572         * testsuite/20_util/bitset/count/constexpr.cc: Likewise.
1573         * testsuite/20_util/bitset/ext/constexpr.cc: Likewise.
1574         * testsuite/20_util/bitset/operations/constexpr_c++23.cc:
1575         Likewise.
1576         * testsuite/20_util/bitset/version.cc: Likewise.
1577         * testsuite/20_util/from_chars/8.cc: Likewise.
1578         * testsuite/20_util/from_chars/constexpr.cc: Likewise.
1579         * testsuite/20_util/function/cons/deduction_c++23.cc: Likewise.
1580         * testsuite/20_util/function_objects/invoke/4.cc: Likewise.
1581         * testsuite/20_util/function_objects/invoke/dangling_ref.cc:
1582         Likewise.
1583         * testsuite/20_util/is_scoped_enum/value.cc: Likewise.
1584         * testsuite/20_util/is_scoped_enum/version.cc: Likewise.
1585         * testsuite/20_util/move_only_function/call.cc: Likewise.
1586         * testsuite/20_util/move_only_function/cons.cc: Likewise.
1587         * testsuite/20_util/move_only_function/move.cc: Likewise.
1588         * testsuite/20_util/move_only_function/version.cc: Likewise.
1589         * testsuite/20_util/optional/monadic/and_then.cc: Likewise.
1590         * testsuite/20_util/optional/monadic/or_else.cc: Likewise.
1591         * testsuite/20_util/optional/monadic/or_else_neg.cc: Likewise.
1592         * testsuite/20_util/optional/monadic/pr109242.cc: Likewise.
1593         * testsuite/20_util/optional/monadic/transform.cc: Likewise.
1594         * testsuite/20_util/pair/p2321r2.cc: Likewise.
1595         * testsuite/20_util/reference_from_temporary/value.cc: Likewise.
1596         * testsuite/20_util/reference_from_temporary/value2.cc:
1597         Likewise.
1598         * testsuite/20_util/reference_from_temporary/version.cc:
1599         Likewise.
1600         * testsuite/20_util/to_chars/constexpr.cc: Likewise.
1601         * testsuite/20_util/to_chars/float128_c++23.cc: Likewise.
1602         * testsuite/20_util/to_chars/float16_c++23.cc: Likewise.
1603         * testsuite/20_util/to_chars/version.cc: Likewise.
1604         * testsuite/20_util/to_underlying/1.cc: Likewise.
1605         * testsuite/20_util/to_underlying/version.cc: Likewise.
1606         * testsuite/20_util/tuple/p2321r2.cc: Likewise.
1607         * testsuite/20_util/unique_ptr/assign/constexpr.cc: Likewise.
1608         * testsuite/20_util/unique_ptr/comparison/constexpr.cc:
1609         Likewise.
1610         * testsuite/20_util/unique_ptr/cons/constexpr_c++20.cc:
1611         Likewise.
1612         * testsuite/20_util/unique_ptr/creation/constexpr.cc: Likewise.
1613         * testsuite/20_util/unique_ptr/modifiers/constexpr.cc: Likewise.
1614         * testsuite/20_util/unique_ptr/specialized_algorithms/constexpr.cc: Likewise.
1615         * testsuite/20_util/unreachable/1.cc: Likewise.
1616         * testsuite/20_util/unreachable/version.cc: Likewise.
1617         * testsuite/20_util/uses_allocator/lwg3677.cc: Likewise.
1618         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc: Likewise.
1619         * testsuite/21_strings/basic_string/operations/contains/char.cc:
1620         Likewise.
1621         * testsuite/21_strings/basic_string/operations/contains/nonnull.cc: Likewise.
1622         * testsuite/21_strings/basic_string/operations/contains/wchar_t.cc: Likewise.
1623         * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc: Likewise.
1624         * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc: Likewise.
1625         * testsuite/21_strings/basic_string_view/operations/contains/char.cc: Likewise.
1626         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc: Likewise.
1627         * testsuite/21_strings/basic_string_view/operations/contains/nonnull.cc: Likewise.
1628         * testsuite/21_strings/basic_string_view/operations/contains/wchar_t.cc: Likewise.
1629         * testsuite/23_containers/queue/cons_from_iters.cc: Likewise.
1630         * testsuite/23_containers/stack/cons_from_iters.cc: Likewise.
1631         * testsuite/23_containers/vector/bool/element_access/1.cc:
1632         Likewise.
1633         * testsuite/24_iterators/const_iterator/1.cc: Likewise.
1634         * testsuite/25_algorithms/contains/1.cc: Likewise.
1635         * testsuite/25_algorithms/contains_subrange/1.cc: Likewise.
1636         * testsuite/25_algorithms/find_last/1.cc: Likewise.
1637         * testsuite/25_algorithms/find_last_if/1.cc: Likewise.
1638         * testsuite/25_algorithms/find_last_if_not/1.cc: Likewise.
1639         * testsuite/25_algorithms/fold_left/1.cc: Likewise.
1640         * testsuite/25_algorithms/fold_right/1.cc: Likewise.
1641         * testsuite/25_algorithms/iota/1.cc: Likewise.
1642         * testsuite/26_numerics/bit/bit.byteswap/byteswap.cc: Likewise.
1643         * testsuite/26_numerics/bit/bit.byteswap/version.cc: Likewise.
1644         * testsuite/26_numerics/complex/ext_c++23.cc: Likewise.
1645         * testsuite/26_numerics/headers/cmath/c99_classification_macros_c++23.cc: Likewise.
1646         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc:
1647         Likewise.
1648         * testsuite/26_numerics/headers/cmath/functions_std_c++23.cc:
1649         Likewise.
1650         * testsuite/26_numerics/headers/cmath/nextafter_c++23.cc:
1651         Likewise.
1652         * testsuite/26_numerics/numbers/4.cc: Likewise.
1653         * testsuite/27_io/basic_ostream/inserters_other/char/volatile_ptr.cc: Likewise.
1654         * testsuite/27_io/filesystem/path/native/conv_c++23.cc:
1655         Likewise.
1656         * testsuite/27_io/spanstream/1.cc: Likewise.
1657         * testsuite/27_io/spanstream/2.cc: Likewise.
1658         * testsuite/27_io/spanstream/version.cc: Likewise.
1659         * testsuite/29_atomics/atomic_float/requirements_cxx23.cc:
1660         Likewise.
1661         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
1662         Likewise.
1663         * testsuite/29_atomics/headers/stdatomic.h/version.cc: Likewise.
1664         * testsuite/30_threads/packaged_task/cons/deduction_c++23.cc:
1665         Likewise.
1666         * testsuite/experimental/filesystem/path/native/conv_c++23.cc:
1667         Likewise.
1668         * testsuite/std/ranges/adaptors/adjacent/1.cc: Likewise.
1669         * testsuite/std/ranges/adaptors/adjacent_transform/1.cc:
1670         Likewise.
1671         * testsuite/std/ranges/adaptors/as_const/1.cc: Likewise.
1672         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
1673         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
1674         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
1675         * testsuite/std/ranges/adaptors/enumerate/1.cc: Likewise.
1676         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
1677         * testsuite/std/ranges/adaptors/lwg3715.cc: Likewise.
1678         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
1679         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
1680         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
1681         * testsuite/std/ranges/range_adaptor_closure.cc: Likewise.
1682         * testsuite/std/ranges/repeat/1.cc: Likewise.
1683         * testsuite/std/ranges/version_c++23.cc: Likewise.
1684         * testsuite/std/ranges/zip/1.cc: Likewise.
1685         * testsuite/std/ranges/zip_transform/1.cc: Likewise.
1686
1687 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1688
1689         * testsuite/20_util/expected/assign.cc: Remove dg-options.
1690         * testsuite/20_util/expected/bad.cc: Likewise.
1691         * testsuite/20_util/expected/cons.cc: Likewise.
1692         * testsuite/20_util/expected/equality.cc: Likewise.
1693         * testsuite/20_util/expected/illformed_neg.cc: Likewise.
1694         * testsuite/20_util/expected/lwg3877.cc: Likewise.
1695         * testsuite/20_util/expected/lwg3938.cc: Likewise.
1696         * testsuite/20_util/expected/monadic.cc: Likewise.
1697         * testsuite/20_util/expected/observers.cc: Likewise.
1698         * testsuite/20_util/expected/requirements.cc: Likewise.
1699         * testsuite/20_util/expected/swap.cc: Likewise.
1700         * testsuite/20_util/expected/synopsis.cc: Likewise.
1701         * testsuite/20_util/expected/unexpected.cc: Likewise.
1702         * testsuite/20_util/expected/version.cc: Likewise.
1703
1704 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1705
1706         * testsuite/20_util/duration/arithmetic/overflow_c++20.cc:
1707         Remove dg-options.
1708         * testsuite/20_util/duration/io.cc: Likewise.
1709         * testsuite/std/time/clock/file/io.cc: Likewise.
1710         * testsuite/std/time/clock/file/members.cc: Likewise.
1711         * testsuite/std/time/clock/file/overview.cc: Likewise.
1712         * testsuite/std/time/clock/gps/1.cc: Likewise.
1713         * testsuite/std/time/clock/gps/io.cc: Likewise.
1714         * testsuite/std/time/clock/local/io.cc: Likewise.
1715         * testsuite/std/time/clock/system/io.cc: Likewise.
1716         * testsuite/std/time/clock/tai/1.cc: Likewise.
1717         * testsuite/std/time/clock/tai/io.cc: Likewise.
1718         * testsuite/std/time/clock/utc/1.cc: Likewise.
1719         * testsuite/std/time/clock/utc/io.cc: Likewise.
1720         * testsuite/std/time/clock/utc/leap_second_info.cc: Likewise.
1721         * testsuite/std/time/day/1.cc: Likewise.
1722         * testsuite/std/time/day/io.cc: Likewise.
1723         * testsuite/std/time/exceptions.cc: Likewise.
1724         * testsuite/std/time/format.cc: Likewise.
1725         * testsuite/std/time/hh_mm_ss/1.cc: Likewise.
1726         * testsuite/std/time/hh_mm_ss/109772.cc: Likewise.
1727         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
1728         * testsuite/std/time/is_am/1.cc: Likewise.
1729         * testsuite/std/time/is_pm/1.cc: Likewise.
1730         * testsuite/std/time/make12/1.cc: Likewise.
1731         * testsuite/std/time/make24/1.cc: Likewise.
1732         * testsuite/std/time/month/1.cc: Likewise.
1733         * testsuite/std/time/month/io.cc: Likewise.
1734         * testsuite/std/time/month_day/1.cc: Likewise.
1735         * testsuite/std/time/month_day/io.cc: Likewise.
1736         * testsuite/std/time/month_day_last/1.cc: Likewise.
1737         * testsuite/std/time/month_day_last/io.cc: Likewise.
1738         * testsuite/std/time/month_weekday/1.cc: Likewise.
1739         * testsuite/std/time/month_weekday/io.cc: Likewise.
1740         * testsuite/std/time/month_weekday_last/1.cc: Likewise.
1741         * testsuite/std/time/month_weekday_last/io.cc: Likewise.
1742         * testsuite/std/time/parse.cc: Likewise.
1743         * testsuite/std/time/syn_c++20.cc: Likewise.
1744         * testsuite/std/time/time_zone/get_info_local.cc: Likewise.
1745         * testsuite/std/time/time_zone/get_info_sys.cc: Likewise.
1746         * testsuite/std/time/time_zone/requirements.cc: Likewise.
1747         * testsuite/std/time/traits/is_clock.cc: Likewise.
1748         * testsuite/std/time/tzdb/1.cc: Likewise.
1749         * testsuite/std/time/tzdb/leap_seconds.cc: Likewise.
1750         * testsuite/std/time/tzdb_list/1.cc: Likewise.
1751         * testsuite/std/time/tzdb_list/requirements.cc: Likewise.
1752         * testsuite/std/time/weekday/1.cc: Likewise.
1753         * testsuite/std/time/weekday/io.cc: Likewise.
1754         * testsuite/std/time/weekday_indexed/io.cc: Likewise.
1755         * testsuite/std/time/weekday_last/1.cc: Likewise.
1756         * testsuite/std/time/weekday_last/io.cc: Likewise.
1757         * testsuite/std/time/year/1.cc: Likewise.
1758         * testsuite/std/time/year/2.cc: Likewise.
1759         * testsuite/std/time/year/io.cc: Likewise.
1760         * testsuite/std/time/weekday_indexed/1.cc: Likewise.
1761         * testsuite/std/time/year_month/1.cc: Likewise.
1762         * testsuite/std/time/year_month/2.cc: Likewise.
1763         * testsuite/std/time/year_month/io.cc: Likewise.
1764         * testsuite/std/time/year_month_day/1.cc: Likewise.
1765         * testsuite/std/time/year_month_day/2.cc: Likewise.
1766         * testsuite/std/time/year_month_day/3.cc: Likewise.
1767         * testsuite/std/time/year_month_day/4.cc: Likewise.
1768         * testsuite/std/time/year_month_day/io.cc: Likewise.
1769         * testsuite/std/time/year_month_day_last/1.cc: Likewise.
1770         * testsuite/std/time/year_month_day_last/2.cc: Likewise.
1771         * testsuite/std/time/year_month_day_last/io.cc: Likewise.
1772         * testsuite/std/time/year_month_weekday/1.cc: Likewise.
1773         * testsuite/std/time/year_month_weekday/2.cc: Likewise.
1774         * testsuite/std/time/year_month_weekday/3.cc: Likewise.
1775         * testsuite/std/time/year_month_weekday/io.cc: Likewise.
1776         * testsuite/std/time/year_month_weekday_last/1.cc: Likewise.
1777         * testsuite/std/time/year_month_weekday_last/2.cc: Likewise.
1778         * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
1779         * testsuite/std/time/zoned_time/1.cc: Likewise.
1780         * testsuite/std/time/zoned_time/custom.cc: Likewise.
1781         * testsuite/std/time/zoned_time/deduction.cc: Likewise.
1782         * testsuite/std/time/zoned_time/io.cc: Likewise.
1783         * testsuite/std/time/zoned_time/req_neg.cc: Likewise.
1784         * testsuite/std/time/zoned_time/requirements.cc: Likewise.
1785         * testsuite/std/time/zoned_traits.cc: Likewise.
1786
1787 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1788
1789         * testsuite/std/format/arguments/args.cc: Remove dg-options.
1790         * testsuite/std/format/arguments/lwg3810.cc: Likewise.
1791         * testsuite/std/format/error.cc: Likewise.
1792         * testsuite/std/format/format_string.cc: Likewise.
1793         * testsuite/std/format/formatter/concept.cc: Likewise.
1794         * testsuite/std/format/formatter/ext_float.cc: Likewise.
1795         * testsuite/std/format/formatter/requirements.cc: Likewise.
1796         * testsuite/std/format/functions/107871.cc: Likewise.
1797         * testsuite/std/format/functions/format.cc: Likewise.
1798         * testsuite/std/format/functions/format_to.cc: Likewise.
1799         * testsuite/std/format/functions/format_to_n.cc: Likewise.
1800         * testsuite/std/format/functions/size.cc: Likewise.
1801         * testsuite/std/format/functions/vformat_to.cc: Likewise.
1802         * testsuite/std/format/parse_ctx.cc: Likewise.
1803         * testsuite/std/format/string.cc: Likewise.
1804         * testsuite/std/format/string_neg.cc: Likewise.
1805         * testsuite/std/format/functions/format_c++23.cc: Removed.
1806
1807 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1808
1809         * testsuite/20_util/function_objects/range.cmp/equal_to.cc:
1810         Remove dg-options.
1811         * testsuite/20_util/function_objects/range.cmp/greater.cc:
1812         Likewise.
1813         * testsuite/20_util/function_objects/range.cmp/greater_equal.cc:
1814         Likewise.
1815         * testsuite/20_util/function_objects/range.cmp/less.cc:
1816         Likewise.
1817         * testsuite/20_util/function_objects/range.cmp/less_equal.cc:
1818         Likewise.
1819         * testsuite/20_util/function_objects/range.cmp/lwg3530.cc:
1820         Likewise.
1821         * testsuite/20_util/function_objects/range.cmp/not_equal_to.cc:
1822         Likewise.
1823         * testsuite/20_util/specialized_algorithms/construct_at/1.cc:
1824         Likewise.
1825         * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
1826         Likewise.
1827         * testsuite/20_util/specialized_algorithms/construct_at/95788.cc:
1828         Likewise.
1829         * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1830         Likewise.
1831         * testsuite/20_util/specialized_algorithms/uninitialized_copy/constrained.cc:
1832         Likewise.
1833         * testsuite/20_util/specialized_algorithms/uninitialized_default_construct/constrained.cc:
1834         Likewise.
1835         * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
1836         Likewise.
1837         * testsuite/20_util/specialized_algorithms/uninitialized_fill/constrained.cc:
1838         Likewise.
1839         * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
1840         Likewise.
1841         * testsuite/20_util/specialized_algorithms/uninitialized_move/constrained.cc:
1842         Likewise.
1843         * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/constrained.cc:
1844         Likewise.
1845         * testsuite/25_algorithms/adjacent_find/constexpr.cc: Likewise.
1846         * testsuite/25_algorithms/adjacent_find/constrained.cc:
1847         Likewise.
1848         * testsuite/25_algorithms/all_of/constexpr.cc: Likewise.
1849         * testsuite/25_algorithms/all_of/constrained.cc: Likewise.
1850         * testsuite/25_algorithms/any_of/constexpr.cc: Likewise.
1851         * testsuite/25_algorithms/any_of/constrained.cc: Likewise.
1852         * testsuite/25_algorithms/binary_search/constexpr.cc: Likewise.
1853         * testsuite/25_algorithms/binary_search/constrained.cc:
1854         Likewise.
1855         * testsuite/25_algorithms/clamp/constrained.cc: Likewise.
1856         * testsuite/25_algorithms/constexpr_macro.cc: Likewise.
1857         * testsuite/25_algorithms/copy/95578.cc: Likewise.
1858         * testsuite/25_algorithms/copy/constexpr.cc: Likewise.
1859         * testsuite/25_algorithms/copy/constrained.cc: Likewise.
1860         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Likewise.
1861         * testsuite/25_algorithms/copy_backward/95578.cc: Likewise.
1862         * testsuite/25_algorithms/copy_backward/constexpr.cc: Likewise.
1863         * testsuite/25_algorithms/copy_backward/constrained.cc:
1864         Likewise.
1865         * testsuite/25_algorithms/copy_backward/debug/constexpr_neg.cc:
1866         Likewise.
1867         * testsuite/25_algorithms/copy_if/constexpr.cc: Likewise.
1868         * testsuite/25_algorithms/copy_if/constrained.cc: Likewise.
1869         * testsuite/25_algorithms/copy_n/constexpr.cc: Likewise.
1870         * testsuite/25_algorithms/copy_n/constrained.cc: Likewise.
1871         * testsuite/25_algorithms/count/constexpr.cc: Likewise.
1872         * testsuite/25_algorithms/count/constrained.cc: Likewise.
1873         * testsuite/25_algorithms/count_if/constexpr.cc: Likewise.
1874         * testsuite/25_algorithms/count_if/constrained.cc: Likewise.
1875         * testsuite/25_algorithms/cpp_lib_constexpr.cc: Likewise.
1876         * testsuite/25_algorithms/equal/95578.cc: Likewise.
1877         * testsuite/25_algorithms/equal/constexpr.cc: Likewise.
1878         * testsuite/25_algorithms/equal/constexpr_neg.cc: Likewise.
1879         * testsuite/25_algorithms/equal/constrained.cc: Likewise.
1880         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
1881         Likewise.
1882         * testsuite/25_algorithms/equal_range/constexpr.cc: Likewise.
1883         * testsuite/25_algorithms/equal_range/constrained.cc: Likewise.
1884         * testsuite/25_algorithms/fill/94017.cc: Likewise.
1885         * testsuite/25_algorithms/fill/constexpr.cc: Likewise.
1886         * testsuite/25_algorithms/fill/constrained.cc: Likewise.
1887         * testsuite/25_algorithms/fill_n/94017.cc: Likewise.
1888         * testsuite/25_algorithms/fill_n/constexpr.cc: Likewise.
1889         * testsuite/25_algorithms/fill_n/constrained.cc: Likewise.
1890         * testsuite/25_algorithms/find/constexpr.cc: Likewise.
1891         * testsuite/25_algorithms/find/constrained.cc: Likewise.
1892         * testsuite/25_algorithms/find_end/constexpr.cc: Likewise.
1893         * testsuite/25_algorithms/find_end/constrained.cc: Likewise.
1894         * testsuite/25_algorithms/find_first_of/constexpr.cc: Likewise.
1895         * testsuite/25_algorithms/find_first_of/constrained.cc:
1896         Likewise.
1897         * testsuite/25_algorithms/find_if/constexpr.cc: Likewise.
1898         * testsuite/25_algorithms/find_if/constrained.cc: Likewise.
1899         * testsuite/25_algorithms/find_if_not/constexpr.cc: Likewise.
1900         * testsuite/25_algorithms/find_if_not/constrained.cc: Likewise.
1901         * testsuite/25_algorithms/for_each/constexpr.cc: Likewise.
1902         * testsuite/25_algorithms/for_each/constrained.cc: Likewise.
1903         * testsuite/25_algorithms/generate/constexpr.cc: Likewise.
1904         * testsuite/25_algorithms/generate/constrained.cc: Likewise.
1905         * testsuite/25_algorithms/generate_n/constexpr.cc: Likewise.
1906         * testsuite/25_algorithms/generate_n/constrained.cc: Likewise.
1907         * testsuite/25_algorithms/heap/constrained.cc: Likewise.
1908         * testsuite/25_algorithms/includes/constrained.cc: Likewise.
1909         * testsuite/25_algorithms/inplace_merge/constrained.cc:
1910         Likewise.
1911         * testsuite/25_algorithms/is_heap/constexpr.cc: Likewise.
1912         * testsuite/25_algorithms/is_heap_until/constexpr.cc: Likewise.
1913         * testsuite/25_algorithms/is_partitioned/constexpr.cc: Likewise.
1914         * testsuite/25_algorithms/is_partitioned/constrained.cc:
1915         Likewise.
1916         * testsuite/25_algorithms/is_permutation/constexpr.cc: Likewise.
1917         * testsuite/25_algorithms/is_permutation/constrained.cc:
1918         Likewise.
1919         * testsuite/25_algorithms/is_sorted/constexpr.cc: Likewise.
1920         * testsuite/25_algorithms/is_sorted/constrained.cc: Likewise.
1921         * testsuite/25_algorithms/is_sorted_until/constexpr.cc:
1922         Likewise.
1923         * testsuite/25_algorithms/is_sorted_until/constrained.cc:
1924         Likewise.
1925         * testsuite/25_algorithms/iter_swap/constexpr.cc: Likewise.
1926         * testsuite/25_algorithms/lexicographical_compare/93972.cc:
1927         Likewise.
1928         * testsuite/25_algorithms/lexicographical_compare/95578.cc:
1929         Likewise.
1930         * testsuite/25_algorithms/lexicographical_compare/constexpr.cc:
1931         Likewise.
1932         * testsuite/25_algorithms/lexicographical_compare/constrained.cc:
1933         Likewise.
1934         * testsuite/25_algorithms/lexicographical_compare_three_way/1.cc:
1935         Likewise.
1936         * testsuite/25_algorithms/lexicographical_compare_three_way/constexpr.cc:
1937         Likewise.
1938         * testsuite/25_algorithms/lower_bound/constexpr.cc: Likewise.
1939         * testsuite/25_algorithms/lower_bound/constrained.cc: Likewise.
1940         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_neg.cc:
1941         Likewise.
1942         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_pred_neg.cc:
1943         Likewise.
1944         * testsuite/25_algorithms/lower_bound/debug/constexpr_valid_range_neg.cc:
1945         Likewise.
1946         * testsuite/25_algorithms/make_heap/constexpr.cc: Likewise.
1947         * testsuite/25_algorithms/max/constrained.cc: Likewise.
1948         * testsuite/25_algorithms/max_element/constrained.cc: Likewise.
1949         * testsuite/25_algorithms/merge/constexpr.cc: Likewise.
1950         * testsuite/25_algorithms/merge/constrained.cc: Likewise.
1951         * testsuite/25_algorithms/min/constrained.cc: Likewise.
1952         * testsuite/25_algorithms/min_element/constrained.cc: Likewise.
1953         * testsuite/25_algorithms/minmax/constrained.cc: Likewise.
1954         * testsuite/25_algorithms/minmax_element/constrained.cc:
1955         Likewise.
1956         * testsuite/25_algorithms/mismatch/constexpr.cc: Likewise.
1957         * testsuite/25_algorithms/mismatch/constrained.cc: Likewise.
1958         * testsuite/25_algorithms/move/93872.cc: Likewise.
1959         * testsuite/25_algorithms/move/95578.cc: Likewise.
1960         * testsuite/25_algorithms/move/constexpr.cc: Likewise.
1961         * testsuite/25_algorithms/move/constrained.cc: Likewise.
1962         * testsuite/25_algorithms/move_backward/93872.cc: Likewise.
1963         * testsuite/25_algorithms/move_backward/95578.cc: Likewise.
1964         * testsuite/25_algorithms/move_backward/constrained.cc:
1965         Likewise.
1966         * testsuite/25_algorithms/next_permutation/constexpr.cc:
1967         Likewise.
1968         * testsuite/25_algorithms/next_permutation/constrained.cc:
1969         Likewise.
1970         * testsuite/25_algorithms/none_of/constexpr.cc: Likewise.
1971         * testsuite/25_algorithms/none_of/constrained.cc: Likewise.
1972         * testsuite/25_algorithms/nth_element/constexpr.cc: Likewise.
1973         * testsuite/25_algorithms/nth_element/constrained.cc: Likewise.
1974         * testsuite/25_algorithms/partial_sort/constexpr.cc: Likewise.
1975         * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
1976         * testsuite/25_algorithms/partial_sort_copy/constexpr.cc:
1977         Likewise.
1978         * testsuite/25_algorithms/partial_sort_copy/constrained.cc:
1979         Likewise.
1980         * testsuite/25_algorithms/partition/constexpr.cc: Likewise.
1981         * testsuite/25_algorithms/partition/constrained.cc: Likewise.
1982         * testsuite/25_algorithms/partition_copy/constexpr.cc: Likewise.
1983         * testsuite/25_algorithms/partition_copy/constrained.cc:
1984         Likewise.
1985         * testsuite/25_algorithms/partition_point/constexpr.cc:
1986         Likewise.
1987         * testsuite/25_algorithms/partition_point/constrained.cc:
1988         Likewise.
1989         * testsuite/25_algorithms/pop_heap/constexpr.cc: Likewise.
1990         * testsuite/25_algorithms/prev_permutation/constexpr.cc:
1991         Likewise.
1992         * testsuite/25_algorithms/prev_permutation/constrained.cc:
1993         Likewise.
1994         * testsuite/25_algorithms/push_heap/constexpr.cc: Likewise.
1995         * testsuite/25_algorithms/remove/constexpr.cc: Likewise.
1996         * testsuite/25_algorithms/remove/constrained.cc: Likewise.
1997         * testsuite/25_algorithms/remove_copy/constexpr.cc: Likewise.
1998         * testsuite/25_algorithms/remove_copy/constrained.cc: Likewise.
1999         * testsuite/25_algorithms/remove_copy_if/constexpr.cc: Likewise.
2000         * testsuite/25_algorithms/remove_copy_if/constrained.cc:
2001         Likewise.
2002         * testsuite/25_algorithms/remove_if/constexpr.cc: Likewise.
2003         * testsuite/25_algorithms/remove_if/constrained.cc: Likewise.
2004         * testsuite/25_algorithms/replace/constrained.cc: Likewise.
2005         * testsuite/25_algorithms/replace_copy/constexpr.cc: Likewise.
2006         * testsuite/25_algorithms/replace_copy/constrained.cc: Likewise.
2007         * testsuite/25_algorithms/replace_copy_if/constexpr.cc:
2008         Likewise.
2009         * testsuite/25_algorithms/replace_copy_if/constrained.cc:
2010         Likewise.
2011         * testsuite/25_algorithms/replace_if/constexpr.cc: Likewise.
2012         * testsuite/25_algorithms/replace_if/constrained.cc: Likewise.
2013         * testsuite/25_algorithms/reverse/constexpr.cc: Likewise.
2014         * testsuite/25_algorithms/reverse/constrained.cc: Likewise.
2015         * testsuite/25_algorithms/reverse_copy/constexpr.cc: Likewise.
2016         * testsuite/25_algorithms/reverse_copy/constrained.cc: Likewise.
2017         * testsuite/25_algorithms/rotate/constexpr.cc: Likewise.
2018         * testsuite/25_algorithms/rotate/constrained.cc: Likewise.
2019         * testsuite/25_algorithms/rotate_copy/constexpr.cc: Likewise.
2020         * testsuite/25_algorithms/rotate_copy/constrained.cc: Likewise.
2021         * testsuite/25_algorithms/sample/constrained.cc: Likewise.
2022         * testsuite/25_algorithms/search/constexpr.cc: Likewise.
2023         * testsuite/25_algorithms/search/constrained.cc: Likewise.
2024         * testsuite/25_algorithms/search_n/97828.cc: Likewise.
2025         * testsuite/25_algorithms/search_n/constexpr.cc: Likewise.
2026         * testsuite/25_algorithms/search_n/constrained.cc: Likewise.
2027         * testsuite/25_algorithms/set_difference/constexpr.cc: Likewise.
2028         * testsuite/25_algorithms/set_difference/constrained.cc:
2029         Likewise.
2030         * testsuite/25_algorithms/set_intersection/constexpr.cc:
2031         Likewise.
2032         * testsuite/25_algorithms/set_intersection/constrained.cc:
2033         Likewise.
2034         * testsuite/25_algorithms/set_symmetric_difference/constexpr.cc:
2035         Likewise.
2036         * testsuite/25_algorithms/set_symmetric_difference/constrained.cc:
2037         Likewise.
2038         * testsuite/25_algorithms/set_union/constexpr.cc: Likewise.
2039         * testsuite/25_algorithms/set_union/constrained.cc: Likewise.
2040         * testsuite/25_algorithms/shift_left/1.cc: Likewise.
2041         * testsuite/25_algorithms/shift_right/1.cc: Likewise.
2042         * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
2043         * testsuite/25_algorithms/sort/constexpr.cc: Likewise.
2044         * testsuite/25_algorithms/sort/constrained.cc: Likewise.
2045         * testsuite/25_algorithms/sort_heap/constexpr.cc: Likewise.
2046         * testsuite/25_algorithms/stable_partition/constrained.cc:
2047         Likewise.
2048         * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
2049         * testsuite/25_algorithms/swap/constexpr.cc: Likewise.
2050         * testsuite/25_algorithms/swap_ranges/constexpr.cc: Likewise.
2051         * testsuite/25_algorithms/swap_ranges/constrained.cc: Likewise.
2052         * testsuite/25_algorithms/transform/constexpr.cc: Likewise.
2053         * testsuite/25_algorithms/transform/constrained.cc: Likewise.
2054         * testsuite/25_algorithms/unique/constexpr.cc: Likewise.
2055         * testsuite/25_algorithms/unique/constrained.cc: Likewise.
2056         * testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise.
2057         * testsuite/25_algorithms/unique_copy/constrained.cc: Likewise.
2058         * testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise.
2059         * testsuite/25_algorithms/upper_bound/constrained.cc: Likewise.
2060         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_neg.cc:
2061         Likewise.
2062         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_pred_neg.cc:
2063         Likewise.
2064         * testsuite/25_algorithms/upper_bound/debug/constexpr_valid_range_neg.cc:
2065         Likewise.
2066
2067 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2068
2069         * testsuite/std/concepts/1.cc: Remove dg-options.
2070         * testsuite/std/concepts/2.cc: Likewise.
2071         * testsuite/std/concepts/concepts.callable/invocable.cc:
2072         Likewise.
2073         * testsuite/std/concepts/concepts.callable/regular_invocable.cc:
2074         Likewise.
2075         * testsuite/std/concepts/concepts.callable/relation.cc:
2076         Likewise.
2077         * testsuite/std/concepts/concepts.callable/strictweakorder.cc:
2078         Likewise.
2079         * testsuite/std/concepts/concepts.lang/concept.arithmetic/floating_point.cc: Likewise.
2080         * testsuite/std/concepts/concepts.lang/concept.arithmetic/integral.cc: Likewise.
2081         * testsuite/std/concepts/concepts.lang/concept.arithmetic/signed_integral.cc: Likewise.
2082         * testsuite/std/concepts/concepts.lang/concept.arithmetic/unsigned_integral.cc: Likewise.
2083         * testsuite/std/concepts/concepts.lang/concept.assignable/1.cc:
2084         Likewise.
2085         * testsuite/std/concepts/concepts.lang/concept.common/1.cc:
2086         Likewise.
2087         * testsuite/std/concepts/concepts.lang/concept.commonref/1.cc:
2088         Likewise.
2089         * testsuite/std/concepts/concepts.lang/concept.constructible/1.cc: Likewise.
2090         * testsuite/std/concepts/concepts.lang/concept.convertible/1.cc:
2091         Likewise.
2092         * testsuite/std/concepts/concepts.lang/concept.copyconstructible/1.cc: Likewise.
2093         * testsuite/std/concepts/concepts.lang/concept.defaultinitializable/1.cc: Likewise.
2094         * testsuite/std/concepts/concepts.lang/concept.defaultinitializable/lwg3149.cc: Likewise.
2095         * testsuite/std/concepts/concepts.lang/concept.derived/1.cc:
2096         Likewise.
2097         * testsuite/std/concepts/concepts.lang/concept.destructible/1.cc: Likewise.
2098         * testsuite/std/concepts/concepts.lang/concept.moveconstructible/1.cc: Likewise.
2099         * testsuite/std/concepts/concepts.lang/concept.same/1.cc:
2100         Likewise.
2101         * testsuite/std/concepts/concepts.lang/concept.swappable/swap.cc: Likewise.
2102         * testsuite/std/concepts/concepts.lang/concept.swappable/swappable.cc: Likewise.
2103         * testsuite/std/concepts/concepts.lang/concept.swappable/swappable_with.cc: Likewise.
2104         * testsuite/std/concepts/concepts.object/copyable.cc: Likewise.
2105         * testsuite/std/concepts/concepts.object/movable.cc: Likewise.
2106         * testsuite/std/concepts/concepts.object/regular.cc: Likewise.
2107         * testsuite/std/concepts/concepts.object/semiregular.cc:
2108         Likewise.
2109         * testsuite/std/ranges/97600.cc: Likewise.
2110         * testsuite/std/ranges/access/101782.cc: Likewise.
2111         * testsuite/std/ranges/access/begin.cc: Likewise.
2112         * testsuite/std/ranges/access/begin_neg.cc: Likewise.
2113         * testsuite/std/ranges/access/cbegin.cc: Likewise.
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/access/data.cc: Likewise.
2119         * testsuite/std/ranges/access/empty.cc: Likewise.
2120         * testsuite/std/ranges/access/end.cc: Likewise.
2121         * testsuite/std/ranges/access/end_neg.cc: Likewise.
2122         * testsuite/std/ranges/access/lwg3467.cc: Likewise.
2123         * testsuite/std/ranges/access/p2602.cc: Likewise.
2124         * testsuite/std/ranges/access/rbegin.cc: Likewise.
2125         * testsuite/std/ranges/access/rend.cc: Likewise.
2126         * testsuite/std/ranges/access/size.cc: Likewise.
2127         * testsuite/std/ranges/access/size_neg.cc: Likewise.
2128         * testsuite/std/ranges/access/ssize.cc: Likewise.
2129         * testsuite/std/ranges/adaptors/100479.cc: Likewise.
2130         * testsuite/std/ranges/adaptors/100577.cc: Likewise.
2131         * testsuite/std/ranges/adaptors/93978.cc: Likewise.
2132         * testsuite/std/ranges/adaptors/95322.cc: Likewise.
2133         * testsuite/std/ranges/adaptors/99433.cc: Likewise.
2134         * testsuite/std/ranges/adaptors/all.cc: Likewise.
2135         * testsuite/std/ranges/adaptors/common.cc: Likewise.
2136         * testsuite/std/ranges/adaptors/conditionally_borrowed.cc:
2137         Likewise.
2138         * testsuite/std/ranges/adaptors/counted.cc: Likewise.
2139         * testsuite/std/ranges/adaptors/detail/copyable_box.cc:
2140         Likewise.
2141         * testsuite/std/ranges/adaptors/drop.cc: Likewise.
2142         * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
2143         * testsuite/std/ranges/adaptors/elements.cc: Likewise.
2144         * testsuite/std/ranges/adaptors/filter.cc: Likewise.
2145         * testsuite/std/ranges/adaptors/join.cc: Likewise.
2146         * testsuite/std/ranges/adaptors/lazy_split.cc: Likewise.
2147         * testsuite/std/ranges/adaptors/lazy_split_neg.cc: Likewise.
2148         * testsuite/std/ranges/adaptors/lwg3286.cc: Likewise.
2149         * testsuite/std/ranges/adaptors/lwg3313_neg.cc: Likewise.
2150         * testsuite/std/ranges/adaptors/lwg3325_neg.cc: Likewise.
2151         * testsuite/std/ranges/adaptors/lwg3406.cc: Likewise.
2152         * testsuite/std/ranges/adaptors/p1739.cc: Likewise.
2153         * testsuite/std/ranges/adaptors/p2281.cc: Likewise.
2154         * testsuite/std/ranges/adaptors/p2770r0.cc: Likewise.
2155         * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
2156         * testsuite/std/ranges/adaptors/sizeof.cc: Likewise.
2157         * testsuite/std/ranges/adaptors/split.cc: Likewise.
2158         * testsuite/std/ranges/adaptors/take.cc: Likewise.
2159         * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2160         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2161         * testsuite/std/ranges/empty_view.cc: Likewise.
2162         * testsuite/std/ranges/headers/ranges/synopsis.cc: Likewise.
2163         * testsuite/std/ranges/iota/difference_type.cc: Likewise.
2164         * testsuite/std/ranges/iota/iota_view.cc: Likewise.
2165         * testsuite/std/ranges/iota/iterator.cc: Likewise.
2166         * testsuite/std/ranges/iota/lwg3292_neg.cc: Likewise.
2167         * testsuite/std/ranges/iota/max_size_type.cc: Likewise.
2168         * testsuite/std/ranges/istream_view.cc: Likewise.
2169         * testsuite/std/ranges/p2259.cc: Likewise.
2170         * testsuite/std/ranges/p2325.cc: Likewise.
2171         * testsuite/std/ranges/p2367.cc: Likewise.
2172         * testsuite/std/ranges/range.cc: Likewise.
2173         * testsuite/std/ranges/refinements.cc: Likewise.
2174         * testsuite/std/ranges/safe_range.cc: Likewise.
2175         * testsuite/std/ranges/safe_range_types.cc: Likewise.
2176         * testsuite/std/ranges/single_view.cc: Likewise.
2177         * testsuite/std/ranges/sized.cc: Likewise.
2178         * testsuite/std/ranges/subrange/1.cc: Likewise.
2179         * testsuite/std/ranges/subrange/97512.cc: Likewise.
2180         * testsuite/std/ranges/subrange/constexpr.cc: Likewise.
2181         * testsuite/std/ranges/subrange/lwg3282_neg.cc: Likewise.
2182         * testsuite/std/ranges/subrange/lwg3286.cc: Likewise.
2183         * testsuite/std/ranges/subrange/lwg3433.cc: Likewise.
2184         * testsuite/std/ranges/subrange/sizeof.cc: Likewise.
2185         * testsuite/std/ranges/subrange/tuple_like.cc: Likewise.
2186         * testsuite/std/ranges/view.cc: Likewise.
2187
2188 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2189
2190         * testsuite/21_strings/headers/cuchar/functions_std_cxx20.cc:
2191         Remove dg-options.
2192         * testsuite/23_containers/span/contiguous_range_neg.cc:
2193         Likewise.
2194         * testsuite/23_containers/span/everything.cc: Likewise.
2195
2196 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2197
2198         * testsuite/24_iterators/reverse_iterator/100639.cc: Remove
2199         dg-options and add dg-add-options strict_std.
2200         * testsuite/std/ranges/iota/93267.cc: Likewise.
2201         * testsuite/std/ranges/iota/96042.cc: Likewise.
2202         * testsuite/std/ranges/iota/size.cc: Likewise.
2203         * testsuite/std/ranges/subrange/96042.cc: Likewise.
2204
2205 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2206
2207         * testsuite/tr1/5_numerical_facilities/special_functions/07_conf_hyperg/compile_cxx17.cc:
2208         Replace dg-options -std=c++17 with dg-add-options strict_std.
2209         * testsuite/tr1/5_numerical_facilities/special_functions/17_hyperg/compile_cxx17.cc:
2210         Likewise.
2211
2212 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2213
2214         * testsuite/23_containers/deque/48101-2_neg.cc: Replace
2215         dg-options with target selector.
2216         * testsuite/23_containers/forward_list/48101-2_neg.cc: Likewise.
2217         * testsuite/23_containers/list/48101-2_neg.cc: Likewise.
2218         * testsuite/23_containers/map/48101-2_neg.cc: Likewise.
2219         * testsuite/23_containers/map/48101_neg.cc: Likewise.
2220         * testsuite/23_containers/multimap/48101-2_neg.cc: Likewise.
2221         * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
2222         * testsuite/23_containers/multiset/48101-2_neg.cc: Likewise.
2223         * testsuite/23_containers/set/48101-2_neg.cc: Likewise.
2224         * testsuite/23_containers/unordered_map/48101-2_neg.cc:
2225         Likewise.
2226         * testsuite/23_containers/unordered_multimap/48101-2_neg.cc:
2227         Likewise.
2228         * testsuite/23_containers/unordered_multiset/48101-2_neg.cc:
2229         Likewise.
2230         * testsuite/23_containers/unordered_set/48101-2_neg.cc:
2231         Likewise.
2232         * testsuite/23_containers/vector/48101-2_neg.cc: Likewise.
2233
2234 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2235
2236         * doc/xml/manual/test.xml: Update documentation on running and
2237         writing tests.
2238         * doc/html/manual/test.html: Regenerate.
2239         * testsuite/Makefile.am: Add v3-use-std-list to site.tmp
2240         * testsuite/Makefile.in: Regenerate.
2241         * testsuite/lib/dg-options.exp (add_options_for_strict_std): New
2242         proc.
2243         * testsuite/lib/libstdc++.exp (search_for): New utility proc.
2244         (v3-dg-runtest): New proc to replace dg-runtest.
2245         * testsuite/libstdc++-dg/conformance.exp: Use v3-dg-runtest.
2246
2247 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2248
2249         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc:
2250         Fix test to work for C++23 and C++26 too.
2251
2252 2023-09-15  Patrick Palka  <ppalka@redhat.com>
2253
2254         * include/std/bit: Include <concepts>.
2255         (byteswap): Use a type-constraint instead of enable_if_t
2256         inside the return type, and use std::integral.
2257         (_If_is_unsigned_integer): Replace with ...
2258         (__unsigned_integer): ... this.
2259         (rotl): Use a type-constraint instead of enable_if_t inside
2260         the return type.
2261         (countl_zero): Likewise.
2262         (countl_one): Likewise.
2263         (countr_zero): Likewise.
2264         (countr_one): Likewise.
2265         (popcount): Likewise.
2266         (has_single_bit): Likewise.
2267         (bit_ceil): Likewise.
2268         (bit_floor): Likewise.
2269         (bit_width): Likewise.
2270
2271 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2272
2273         * include/std/variant (variant): Remove derivation from
2274         _Enable_default_constructor base class.
2275         (variant::variant()): Constrain.
2276         * testsuite/20_util/variant/default_ctor.cc: New test.
2277
2278 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2279
2280         PR libstdc++/111172
2281         * include/std/variant (get<T>): Remove !is_void static
2282         assertions.
2283
2284 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2285
2286         * include/bits/version.def (to_chars): Define new value for
2287         C++26.
2288         * include/bits/version.h: Regenerate.
2289         * include/std/charconv (to_chars_result::operator bool): New
2290         function.
2291         (from_chars_result::operator bool): New function.
2292         * testsuite/20_util/to_chars/version.cc: Update expected value.
2293         * testsuite/20_util/from_chars/result.cc: New test.
2294         * testsuite/20_util/to_chars/result.cc: New test.
2295
2296 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2297
2298         PR c++/111357
2299         * testsuite/20_util/integer_sequence/pr111357.cc: New test.
2300
2301 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2302
2303         * testsuite/27_io/basic_filebuf/seekoff/char/1-io.cc: Use
2304         dg-additional-files. Remove @require@ and @diff@ comments.
2305         * testsuite/27_io/basic_filebuf/seekoff/char/2-io.cc: Likewise.
2306         * testsuite/27_io/basic_filebuf/seekpos/char/1-io.cc: Likewise.
2307         * testsuite/27_io/basic_filebuf/seekpos/char/2-io.cc: Likewise.
2308         * testsuite/lib/dg-options.exp (v3_additional_files): New
2309         global variable.
2310         (dg-additional-files): New proc.
2311         * testsuite/lib/libstdc++.exp (v3_target_compile): Copy
2312         additional files to test directory.
2313
2314 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2315
2316         * include/experimental/io_context (io_context) [!_GLIBCXX_HAS_GTHREADS]:
2317         Use a plain integer for _M_work_count for single-threaded
2318         targets.
2319         * include/experimental/memory_resource (__get_default_resource)
2320         [!_GLIBCXX_HAS_GTHREADS]: Use unsynchronized type for
2321         single-threaded targets.
2322         * src/c++17/default_resource.h: Adjust preprocessor conditions
2323         to match memory_resource.cc.
2324         * src/c++17/memory_resource.cc [!_GLIBCXX_HAS_GTHREADS]
2325         (atomic_mem_res): Use unsynchronized type for single-threaded
2326         targets.
2327
2328 2023-09-14  Christophe Lyon  <christophe.lyon@linaro.org>
2329
2330         * testsuite/29_atomics/atomic/compare_exchange_padding.cc: Likewise.
2331         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
2332         * testsuite/29_atomics/atomic_float/value_init.cc: Likewise.
2333         * testsuite/29_atomics/atomic_integral/cons/value_init.cc: Likewise.
2334         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc: Likewise.
2335         * testsuite/29_atomics/atomic_ref/generic.cc: Likewise.
2336         * testsuite/29_atomics/atomic_ref/integral.cc: Likewise.
2337         * testsuite/29_atomics/atomic_ref/pointer.cc: Likewise.
2338
2339 2023-09-14  François Dumont  <fdumont@gcc.gnu.org>
2340
2341         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Add
2342         { dg-require-normal-namespace "" }.
2343
2344 2023-09-13  François Dumont  <fdumont@gcc.gnu.org>
2345
2346         * include/std/format (std::__format::_Arg_store): Explicit version
2347         namespace on make_format_args friend declaration.
2348
2349 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2350
2351         PR libstdc++/111327
2352         * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Also define
2353         a deleted fallback operator() overload.  Constrain both the
2354         enabled and deleted overloads accordingly.
2355         * testsuite/20_util/function_objects/not_fn/111327.cc: New test.
2356
2357 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2358
2359         PR libstdc++/111327
2360         * include/std/functional (_Bind_front::operator()): Add deleted
2361         fallback overloads for each const/ref qualifier pair.  Give the
2362         enabled overloads dummy constraints to make each one more
2363         specialized than the corresponding deleted overload.
2364         * testsuite/20_util/function_objects/bind_front/111327.cc: New test.
2365
2366 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2367
2368         * include/std/functional (_Bind_front0): Remove.
2369         (_Bind_front_t): Adjust.
2370
2371 2023-09-12  Jonathan Wakely  <jwakely@redhat.com>
2372
2373         * python/libstdcxx/v6/printers.py: Reformat.
2374         * python/libstdcxx/v6/xmethods.py: Likewise.
2375
2376 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2377
2378         * src/c++11/debug.cc (acquire_sequence_ptr_for_lock): New
2379         function.
2380         (reset_sequence_ptr): New function.
2381         (_Safe_iterator_base::_M_detach)
2382         (_Safe_local_iterator_base::_M_detach): Replace bare atomic_load
2383         with acquire_sequence_ptr_for_lock.
2384         (_Safe_iterator_base::_M_reset): Replace bare atomic_store with
2385         reset_sequence_ptr.
2386
2387 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2388
2389         * src/c++11/Makefile.am: Add new file.
2390         * src/c++11/Makefile.in: Regenerate.
2391         * src/c++11/debug.cc (__glibcxx_assert_fail): Move to ...
2392         * src/c++11/assert_fail.cc: New file.
2393
2394 2023-09-11  Ken Matsui  <kmatsui@gcc.gnu.org>
2395
2396         * include/bits/c++config (_GLIBCXX_HAS_BUILTIN): Do not undef.
2397         (_GLIBCXX_USE_BUILTIN_TRAIT): Define.
2398
2399 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2400
2401         * include/bits/version.def (__cpp_lib_formatters): Define.
2402         * include/bits/version.h: Regenerate.
2403         * include/std/stacktrace (formatter<stacktrace_entry>)
2404         (formatter<basic_stacktrace<Alloc>>): Define.
2405         * include/std/thread (formatter<thread::id, charT>): Define.
2406         * testsuite/19_diagnostics/stacktrace/output.cc: New test.
2407         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Add
2408         std::formatter specializations.
2409         * testsuite/19_diagnostics/stacktrace/version.cc: Check
2410         __cpp_lib_formatters macro.
2411         * testsuite/30_threads/thread/id/hash.cc: Remove gthreads
2412         dependency.
2413         * testsuite/30_threads/thread/id/operators.cc: Likewise.
2414         * testsuite/30_threads/thread/id/operators_c++20.cc: Likewise.
2415         * testsuite/30_threads/thread/id/output.cc: New test.
2416
2417 2023-09-11  Pekka Seppänen  <pexu@gcc.mail.kapsi.fi>
2418
2419         * src/c++11/cow-locale_init.cc: Add [[maybe_unused]] attribute.
2420         * src/c++17/fs_path.cc (path::_S_convert_loc): Likewise.
2421         * src/filesystem/path.cc (path::_S_convert_loc): Likewise.
2422
2423 2023-09-08  Jonathan Wakely  <jwakely@redhat.com>
2424
2425         * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++23 directory.
2426         * configure: Regenerate.
2427         * doc/html/manual/*: Regenerate.
2428         * doc/xml/manual/using.xml: Update documentation on linking.
2429         * include/std/stacktrace: Remove declarations of libbacktrace
2430         APIs.
2431         (stacktrace_entry::_S_err_handler, stacktrace_entry::_S_init):
2432         Remove.
2433         (stacktrace_entry::_Info): New class.
2434         (stacktrace_entry::_M_get_info): Use _Info.
2435         (__stacktrace_impl): New class.
2436         (basic_stacktrace): Derive from __stacktrace_impl.
2437         (basic_stacktrace::current): Use __stacktrace_impl::_S_current.
2438         * scripts/testsuite_flags.in: Adjust LDFLAGS to find
2439         libstdc++exp instead of libstdc++_libbacktrace.
2440         * src/Makefile.am (SUBDIRS): Add c++23 directory.
2441         * src/Makefile.in: Regenerate.
2442         * src/c++20/Makefile.am: Fix comment.
2443         * src/c++20/Makefile.in: Regenerate.
2444         * src/c++23/Makefile.am: New file.
2445         * src/c++23/Makefile.in: New file.
2446         * src/c++23/stacktrace.cc: New file with definitions of
2447         stacktrace_entry::_Info and __stacktrace_impl members.
2448         * src/experimental/Makefile.am: Use LIBADD to include other
2449         libraries.
2450         * src/experimental/Makefile.in: Regenerate.
2451         * src/libbacktrace/Makefile.am: Use noinst_LTLIBRARIES.
2452         * src/libbacktrace/Makefile.in: Regenerate.
2453         * testsuite/19_diagnostics/stacktrace/current.cc: Adjust
2454         dg-options to use -lstdc++exp.
2455         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
2456         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
2457         * testsuite/23_containers/vector/debug/assign4_backtrace_neg.cc:
2458         Likewise.
2459
2460 2023-09-08  Alexey Lapshin  <alexey.lapshin@espressif.com>
2461
2462         * src/libbacktrace/Makefile.am: Remove -Werror.
2463         * src/libbacktrace/Makefile.in: Regenerate.
2464
2465 2023-09-08  Jonathan Wakely  <jwakely@redhat.com>
2466
2467         * testsuite/Makefile.am (check-DEJAGNU): Use @ in recipe.
2468         * testsuite/Makefile.in: Regenerate.
2469
2470 2023-09-08  Yang Yujie  <yangyujie@loongson.cn>
2471
2472         * configure.host: Register t-loongarch in tmake_file.
2473         * config/cpu/loongarch/t-loongarch: New file.  Manually refresh
2474         MULTISUBDIR with $(shell $(CXX) --print-multi-directory).
2475
2476 2023-09-07  Bruno Victal  <mirai@makinata.eu>
2477
2478         * acinclude.m4: Update docbook xsl URI.
2479         * configure: Regenerate.
2480
2481 2023-09-07  Bruno Victal  <mirai@makinata.eu>
2482
2483         * doc/Makefile.am: Fix 'doc-install-info' rule.
2484         Fix typo in commment.
2485         * doc/Makefile.in: Regenerate.
2486
2487 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2488
2489         * testsuite/27_io/filesystem/path/concat/94063.cc: Simplify
2490         dg-do target selector.
2491
2492 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2493
2494         * testsuite/config/default.exp: Remove trailing whitespace.
2495         * testsuite/lib/dg-options.exp: Likewise.
2496         * testsuite/lib/prune.exp: Likewise.
2497         * testsuite/libstdc++-abi/abi.exp: Likewise.
2498         * testsuite/libstdc++-dg/conformance.exp: Likewise.
2499         * testsuite/libstdc++-prettyprinters/prettyprinters.exp:
2500         Likewise.
2501         * testsuite/libstdc++-xmethods/xmethods.exp: Likewise.
2502         * testsuite/lib/libstdc++.exp: Likewise.
2503         (check_v3_target_c_std): Fix filename for temporary source file.
2504
2505 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2506
2507         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for mkdir,
2508         chmod, chdir, and getcwd.
2509         * config.h.in: Regenerate.
2510         * configure: Regenerate.
2511         * src/c++17/fs_ops.cc (create_dir): Use USE_MKDIR macro.
2512         (fs::current_path): Use USE_GETCWD and USE_CHDIR macros.
2513         (fs::permissions): Use USE_CHMOD macro.
2514         * src/filesystem/ops-common.h [FILESYSTEM_IS_WINDOWS]
2515         (chmod, mkdir, getcwd, chdir): Define new macros.
2516         [FILESYSTEM_IS_WINDOWS] (chmod, mkdir, getcwd, chdir): Use
2517         new macros.
2518         * src/filesystem/ops.cc (create_dir): Use USE_MKDIR macro.
2519         (fs::current_path): Use USE_GETCWD and USE_CHDIR macros.
2520         (fs::permissions): Use USE_CHMOD macro.
2521
2522 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2523
2524         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Disable by default
2525         for avr.
2526         * configure: Regenerate.
2527
2528 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2529
2530         * testsuite/23_containers/unordered_map/operations/1.cc: Add
2531         dg-options for C++20 mode.
2532         * testsuite/23_containers/unordered_multimap/operations/1.cc:
2533         Likewise.
2534         * testsuite/23_containers/unordered_multiset/operations/1.cc:
2535         Likewise.
2536         * testsuite/23_containers/unordered_set/operations/1.cc:
2537         Likewise.
2538         * testsuite/std/time/parse.cc: Move dg-options before dg-do.
2539
2540 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2541
2542         * testsuite/std/ranges/access/cbegin.cc: Adjust for C++23
2543         compatibility.
2544         * testsuite/std/ranges/access/cdata.cc: Likewise.
2545         * testsuite/std/ranges/access/cend.cc: Likewise.
2546         * testsuite/std/ranges/access/crbegin.cc: Likewise.
2547         * testsuite/std/ranges/access/crend.cc: Likewise.
2548         * testsuite/std/ranges/adaptors/take.cc: Likewise.
2549         * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2550         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2551
2552 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2553
2554         * include/bits/iterator_concepts.h (__imove::iter_move): Define
2555         poison pill as deleted for consistency.
2556         (__access::begin): Replace with a single declaration.
2557         * include/bits/ranges_base.h (__access::end, __access::rbegin)
2558         (__access::rend, __access::size): Likewise.
2559         * include/bits/version.def (ranges): Update value for C++23.
2560         * include/bits/version.h: Regenerate.
2561         * libsupc++/compare (__compare): Add missing poison pill
2562         overloads.
2563         * testsuite/std/ranges/version_c++23.cc: Adjust expected value
2564         of __cpp_lib_ranges.
2565         * testsuite/std/ranges/access/p2602.cc: New test.
2566
2567 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2568
2569         * include/bits/iterator_concepts.h (ranges::__cust_imove):
2570         Rename to ranges::__imove.
2571         (_IMove): Rename to _IterMove.
2572         (ranges::__cust_iswap): Rename to ranges::__iswap.
2573         (ranges::__cust): Rename to ranges::_Cpo.
2574         (ranges::__cust_access): Rename to ranges::__access.
2575         * include/bits/ranges_base.h (ranges::__cust_access): Rename to
2576         ranges::__access.
2577         (ranges::__cust): Rename to ranges::_Cpo.
2578         * include/std/concepts (ranges::__cust_swap):  Rename to
2579         ranges::__swap.
2580         (ranges::__cust): Rename to ranges::_Cpo.
2581         * libsupc++/compare (__cmp_cust): Rename to __compare.
2582         (__cmp_algo): Rename to _Cpo.
2583
2584 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2585
2586         * include/bits/version.def (ranges): Update value.
2587         * include/bits/version.h: Regenerate.
2588         * include/std/ranges (__detail::__boxable): Use
2589         move_constructible instead of copy_constructible for C++23.
2590         (__detail::__box<T>): Adjust constraints for partial
2591         specialization.
2592         (single_view, transform_view): Use __box_constructible instead
2593         of copy_constructible in constraints.
2594         (zip_transform_view, adjacent_transform_view, repeat_view): Use
2595         move_constructible instead of copy_constructible in constraints.
2596         * testsuite/std/ranges/adaptors/adjacent_transform/1.cc: Check
2597         construction from move-only argument.
2598         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2599         * testsuite/std/ranges/repeat/1.cc: Likewise.
2600         * testsuite/std/ranges/single_view.cc: Likewise.
2601         * testsuite/std/ranges/zip_transform/1.cc: Likewise.
2602         * testsuite/std/ranges/version_c++23.cc: Adjust expected value
2603         of __cpp_lib_ranges.
2604
2605 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2606
2607         * testsuite/util/testsuite_iterators.h (is_customization_point_object):
2608         Remove parameter name.
2609
2610 2023-09-06  Jonathan Wakely  <jwakely@redhat.com>
2611
2612         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Disable by default
2613         for freestanding.
2614         * configure: Regenerate.
2615
2616 2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
2617
2618         Revert
2619         2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
2620
2621         PR libstdc++/111238
2622         * configure: Regenerate.
2623         * configure.ac: Call GLIBCXX_CHECK_LINKER_FEATURES in cross,
2624         non-Canadian builds.
2625
2626 2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
2627
2628         PR libstdc++/111238
2629         * configure: Regenerate.
2630         * configure.ac: Call GLIBCXX_CHECK_LINKER_FEATURES in cross,
2631         non-Canadian builds.
2632
2633 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2634
2635         * testsuite/26_numerics/complex/literals/types.cc: Remove
2636         dg-options and add target selector instead.
2637
2638 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2639
2640         * testsuite/tr1/6_containers/utility/pair.cc: Remove dg-options
2641         and qualify ambiguous calls to get.
2642         * testsuite/tr1/8_c_compatibility/cmath/pow_cmath.cc: Adjust
2643         expected result for std::pow(float, int) as per DR 550.
2644
2645 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2646
2647         * testsuite/20_util/auto_ptr/1.cc: Remove dg-options -std=c++03
2648         and add dg-warning for deprecation warnings.
2649         * testsuite/20_util/auto_ptr/2.cc: Likewise.
2650         * testsuite/20_util/auto_ptr/3.cc: Likewise.
2651         * testsuite/20_util/auto_ptr/3946.cc: Likewise.
2652         * testsuite/20_util/auto_ptr/4.cc: Likewise.
2653         * testsuite/20_util/auto_ptr/5.cc: Likewise.
2654         * testsuite/20_util/auto_ptr/6.cc: Likewise.
2655         * testsuite/20_util/auto_ptr/7.cc: Likewise.
2656         * testsuite/20_util/auto_ptr/assign_neg.cc: Likewise.
2657         * testsuite/20_util/auto_ptr/requirements/explicit_instantiation/1.cc:
2658         Likewise.
2659         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr.cc:
2660         Likewise.
2661         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr_neg.cc:
2662         Likewise.
2663         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr_rvalue_neg.cc:
2664         Likewise.
2665         * testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc:
2666         Likewise.
2667         * testsuite/tr1/2_general_utilities/shared_ptr/cons/auto_ptr.cc:
2668         Likewise.
2669         * testsuite/tr1/2_general_utilities/shared_ptr/cons/auto_ptr_neg.cc:
2670         Likewise.
2671
2672 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2673
2674         PR libstdc++/26142
2675         * testsuite/23_containers/vector/26412-1.cc: Moved to...
2676         * testsuite/23_containers/vector/26142-1.cc: ...here.
2677         * testsuite/23_containers/vector/26412-2.cc: Moved to...
2678         * testsuite/23_containers/vector/26142-2.cc: ...here.
2679
2680 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2681
2682         * testsuite/20_util/bitset/107037.cc: Add c++98_only selector.
2683         * testsuite/26_numerics/complex/56111.cc: Likewise.
2684
2685 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2686
2687         * testsuite/23_containers/deque/requirements/explicit_instantiation/2.cc:
2688         Add dg-options to restrict the test to C++98 mode.
2689         * testsuite/23_containers/list/requirements/explicit_instantiation/2.cc:
2690         Likewise.
2691
2692 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2693
2694         * testsuite/20_util/expected/bad.cc: Add missing target
2695         selector.
2696
2697 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2698
2699         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Adjust
2700         expected errors.
2701         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
2702         Likewise.
2703
2704 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2705
2706         * testsuite/27_io/filesystem/iterators/91067.cc: Add
2707         -Wno-self-move to options.
2708         * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
2709
2710 2023-09-01  Vladimir Palevich  <palevichva@gmail.com>
2711
2712         PR libstdc++/110879
2713         * include/bits/vector.tcc (_M_realloc_insert): End guard
2714         lifetime just before assignment to class members.
2715         (_M_default_append): Likewise.
2716
2717 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2718
2719         * src/c++17/fs_ops.cc (fs::absolute) [FILESYSTEM_IS_WINDOWS]:
2720         Use __resize_and_overwrite to fill buffer.
2721         (fs::read_symlink) [HAVE_READLINK]: Likewise.
2722         * src/filesystem/ops-common.h (get_temp_directory_from_env)
2723         [FILESYSTEM_IS_WINDOWS]: Likewise.
2724
2725 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2726
2727         PR libstdc++/111077
2728         * include/bits/atomic_base.h (__atomic_impl::__compare_exchange):
2729         Add _AtomicRef non-type template parameter and use a loop if it
2730         is true.
2731         (__atomic_impl::compare_exchange_weak): Add _AtomicRef NTTP.
2732         (__atomic_impl::compare_exchange_strong): Likewise.
2733         (atomic_ref::compare_exchange_weak): Use true for NTTP.
2734         (atomic_ref::compare_exchange_strong): Use true for NTTP.
2735         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc:
2736         Fix test to not rely on atomic_ref::load() to return an object
2737         with padding preserved.
2738
2739 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2740
2741         * testsuite/27_io/filesystem/path/108636.cc: Add dg-require for
2742         filesystem support.
2743
2744 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2745
2746         * src/c++20/tzdb.cc (tzdb::current_zone): Check configure macros
2747         for POSIX readlink before using filesystem::read_symlink.
2748
2749 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2750
2751         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Default to yes.
2752         * configure: Regenerate.
2753
2754 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2755
2756         * include/bits/chrono_io.h (_Parser::operator()): Set failbit
2757         early if invalid values are read when _M_need & _TimeOfDay is
2758         non-zero.
2759         * testsuite/std/time/parse.cc: Check that "25:59" cannot be
2760         parsed for "%H:%M".
2761
2762 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2763
2764         PR libstdc++/111162
2765         * include/bits/chrono_io.h (_Parser::Operator()): Check %C
2766         values are in range of year::min() to year::max().
2767         * testsuite/std/time/parse.cc: Check out of range centuries.
2768
2769 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2770
2771         * include/std/format (__format::_Sink::_M_reset): Change second
2772         argument from iterator to offset.
2773
2774 2023-08-24  Paul Dreik  <gccpatches@pauldreik.se>
2775
2776         PR libstdc++/111102
2777         * testsuite/std/format/string.cc: Check wide character format
2778         strings with out-of-range widths.
2779
2780 2023-08-24  Paul Dreik  <gccpatches@pauldreik.se>
2781
2782         PR libstdc++/111102
2783         * include/std/format (__format::__parse_integer): Check for
2784         non-null pointer.
2785
2786 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2787
2788         * testsuite/std/format/functions/format_to.cc: Avoid warning for
2789         unused variables.
2790
2791 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2792
2793         * include/std/atomic: Add comment to #ifdef and fix indentation.
2794         * include/std/ostream: Check __glibcxx_syncbuf instead of
2795         __cplusplus and _GLIBCXX_HOSTED.
2796         * include/std/thread: Add comment to #ifdef.
2797
2798 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2799
2800         * include/bits/version.def (__cpp_lib_ratio): Define.
2801         * include/bits/version.h: Regenerate.
2802         * include/std/ratio (quecto, ronto, yocto, zepto)
2803         (zetta, yotta, ronna, quetta): Define.
2804         * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Adjust
2805         dg-error line numbers.
2806
2807 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2808
2809         * python/libstdcxx/v6/printers.py (StdLocalePrinter): New
2810         printer class.
2811         * testsuite/libstdc++-prettyprinters/locale.cc: New test.
2812
2813 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2814
2815         PR libstdc++/110944
2816         * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Do
2817         not show template arguments.
2818         (StdVariantPrinter): Likewise.
2819         * testsuite/libstdc++-prettyprinters/compat.cc: Adjust expected
2820         output.
2821         * testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
2822         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
2823
2824 2023-08-23  François Dumont  <fdumont@gcc.gnu.org>
2825
2826         * testsuite/util/replacement_memory_operators.h
2827         (counter::scope): New, capture and reset counter count at construction and
2828         restore it at destruction.
2829         (counter::check_new): Add scope instantiation.
2830         * testsuite/23_containers/unordered_map/96088.cc (main):
2831         Add counter::scope instantiation.
2832         * testsuite/23_containers/unordered_multimap/96088.cc (main): Likewise.
2833         * testsuite/23_containers/unordered_multiset/96088.cc (main): Likewise.
2834         * testsuite/23_containers/unordered_set/96088.cc (main): Likewise.
2835         * testsuite/ext/malloc_allocator/deallocate_local.cc (main): Likewise.
2836         * testsuite/ext/new_allocator/deallocate_local.cc (main): Likewise.
2837         * testsuite/ext/throw_allocator/deallocate_local.cc (main): Likewise.
2838         * testsuite/ext/pool_allocator/allocate_chunk.cc (started): New global.
2839         (operator new(size_t)): Check started.
2840         (main): Set/Unset started.
2841         * testsuite/17_intro/no_library_allocation.cc: New test case.
2842
2843 2023-08-21  Jonathan Wakely  <jwakely@redhat.com>
2844
2845         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
2846         Call std::set_terminate before throwing the nested exception.
2847
2848 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
2849
2850         PR target/111060
2851         * include/std/format (formatter): Only define specializations
2852         for 16-bit floating-point types for C++23.
2853         * include/std/limits (numeric_limits): Likewise.
2854
2855 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
2856
2857         * include/bits/chrono_io.h (operator<<): Make uses of wide
2858         strings with streams and std::format type-dependent on _CharT.
2859         * include/std/format [!_GLIBCXX_USE_WCHAR_T] Do not use
2860         __to_wstring_numeric.
2861
2862 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
2863
2864         * include/bits/chrono_io.h (operator<<): Use __format_context.
2865         * include/std/format (__format::__format_context): New alias
2866         template.
2867         [!_GLIBCXX_USE_WCHAR_T] (wformat_args, make_wformat_arg):
2868         Disable.
2869
2870 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2871
2872         Revert:
2873         2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2874
2875         * config/locale/generic/c_locale.cc (__convert_to_v): Reuse
2876         double overload for long double if possible.
2877
2878 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2879
2880         * src/c++20/tzdb.cc (tzdata_file, leaps_file): Change type to
2881         std::string_view.
2882
2883 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2884
2885         * config/locale/generic/c_locale.cc (__convert_to_v): Reuse
2886         double overload for long double if possible.
2887
2888 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2889
2890         * src/c++98/localename.cc (is_C_locale): New function.
2891         (locale::locale(const char*)): Use is_C_locale.
2892
2893 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2894
2895         PR libstdc++/110945
2896         * include/bits/basic_string.h (basic_string::assign(Iter, Iter)):
2897         Dispatch to _M_replace or move assignment from a temporary,
2898         based on the iterator type.
2899
2900 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2901
2902         * include/std/format (formatter): Add partial specializations
2903         for extended floating-point types.
2904         * testsuite/std/format/functions/format.cc: Move test_float128()
2905         to ...
2906         * testsuite/std/format/formatter/ext_float.cc: New test.
2907
2908 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2909
2910         * include/bits/c++config (__gnu_cxx::__bfloat16_t): Define
2911         whenever __BFLT16_DIG__ is defined, not only for C++23.
2912         * include/std/limits (numeric_limits<bfloat16_t>): Likewise.
2913         (numeric_limits<_Float16>, numeric_limits<_Float32>)
2914         (numeric_limits<_Float64>): Likewise for other extended
2915         floating-point types.
2916
2917 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2918
2919         * include/experimental/internet (address_v4::to_string): Remove
2920         unused parameter name.
2921
2922 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2923
2924         * libsupc++/compare (__cmp_cat::__unseq): Make ctor consteval.
2925         * testsuite/18_support/comparisons/categories/zero_neg.cc: Prune
2926         excess errors caused by invalid consteval calls.
2927
2928 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2929
2930         * include/bits/chrono_io.h (__units_suffix_misc): Remove.
2931         (__units_suffix): Return a known suffix as string view, do not
2932         write unknown suffixes to a buffer.
2933         (__fmt_units_suffix): New function that formats the suffix using
2934         std::format_to.
2935         (operator<<, __chrono_formatter::_M_q): Use __fmt_units_suffix.
2936         (__chrono_formatter::_M_Z): Correct lifetime of wstring.
2937
2938 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2939
2940         * include/std/format [_GLIBCXX_USE_WCHAR_T]: Guard all wide
2941         string formatters with this macro.
2942         (__formatter_int::_M_format_int, __formatter_fp::format)
2943         (formatter<const void*, C>::format): Use __to_wstring_numeric
2944         instead of std::ctype::widen.
2945         (__formatter_fp::_M_localize): Use hardcoded wchar_t values
2946         instead of std::ctype::widen.
2947         * testsuite/std/format/functions/format.cc: Add more checks for
2948         wstring formatting of arithmetic types.
2949
2950 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2951
2952         * include/bits/basic_string.h (to_string(floating-point-type)):
2953         Implement using std::to_chars for C++26.
2954         * include/bits/version.def (__cpp_lib_to_string): Define.
2955         * include/bits/version.h: Regenerate.
2956         * testsuite/21_strings/basic_string/numeric_conversions/char/dr1261.cc:
2957         Adjust expected result in C++26 mode.
2958         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string.cc:
2959         Likewise.
2960         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/dr1261.cc:
2961         Likewise.
2962         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/to_wstring.cc:
2963         Likewise.
2964         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_float.cc:
2965         New test.
2966         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/to_wstring_float.cc:
2967         New test.
2968         * testsuite/21_strings/basic_string/numeric_conversions/version.cc:
2969         New test.
2970
2971 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2972
2973         * include/bits/basic_string.h (to_string(integral-type)): Use
2974         resize_and_overwrite when available.
2975         (__to_wstring_numeric): New helper functions.
2976         (to_wstring): Use std::to_string then __to_wstring_numeric.
2977         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_int.cc:
2978         Remove check for no excess capacity.
2979
2980 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2981
2982         * include/bits/basic_string.h (__resize_and_overwrite): New
2983         function.
2984         * include/bits/basic_string.tcc (__resize_and_overwrite): New
2985         function.
2986         (resize_and_overwrite): Simplify by using reserve instead of
2987         growing the string manually. Adjust for C++11 compatibility.
2988         * include/bits/cow_string.h (resize_and_overwrite): New
2989         function.
2990         (__resize_and_overwrite): New function.
2991         * include/bits/version.def (__cpp_lib_string_resize_and_overwrite):
2992         Do not depend on cxx11abi.
2993         * include/bits/version.h: Regenerate.
2994         * include/std/format (__formatter_fp::_S_resize_and_overwrite):
2995         Remove.
2996         (__formatter_fp::format, __formatter_fp::_M_localize): Use
2997         __resize_and_overwrite instead of _S_resize_and_overwrite.
2998         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
2999         Adjust for C++11 compatibility when included by ...
3000         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite_ext.cc:
3001         New test.
3002
3003 2023-08-17  Patrick Palka  <ppalka@redhat.com>
3004
3005         * include/bits/regex.h (regex_iterator::iterator_concept):
3006         Define for C++20 as per P2770R0.
3007         (regex_token_iterator::iterator_concept): Likewise.
3008         * include/std/ranges (__detail::__as_lvalue): Define.
3009         (join_view::_Iterator): Befriend join_view.
3010         (join_view::_Iterator::_M_satisfy): Use _M_get_outer
3011         instead of _M_outer.
3012         (join_view::_Iterator::_M_get_outer): Define.
3013         (join_view::_Iterator::_Iterator): Split constructor taking
3014         _Parent argument into two as per P2770R0.  Remove constraint on
3015         default constructor.
3016         (join_view::_Iterator::_M_outer): Make this data member present
3017         only when the underlying range is forward.
3018         (join_view::_Iterator::operator++): Use _M_get_outer instead of
3019         _M_outer.
3020         (join_view::_Iterator::operator--): Use __as_lvalue helper.
3021         (join_view::_Iterator::operator==): Adjust constraints as per
3022         P2770R0.
3023         (join_view::_Sentinel::__equal): Use _M_get_outer instead of
3024         _M_outer.
3025         (join_view::_M_outer): New data member when the underlying range
3026         is non-forward.
3027         (join_view::begin): Adjust definition as per P2770R0.
3028         (join_view::end): Likewise.
3029         (join_with_view::_M_outer_it): New data member when the
3030         underlying range is non-forward.
3031         (join_with_view::begin): Adjust definition as per P2770R0.
3032         (join_with_view::end): Likewise.
3033         (join_with_view::_Iterator::_M_outer_it): Make this data member
3034         present only when the underlying range is forward.
3035         (join_with_view::_Iterator::_M_get_outer): Define.
3036         (join_with_view::_Iterator::_Iterator): Split constructor
3037         taking _Parent argument into two as per P2770R0.  Remove
3038         constraint on default constructor.
3039         (join_with_view::_Iterator::_M_update_inner): Adjust definition
3040         as per P2770R0.
3041         (join_with_view::_Iterator::_M_get_inner): Likewise.
3042         (join_with_view::_Iterator::_M_satisfy): Adjust calls to
3043         _M_get_inner.  Use _M_get_outer instead of _M_outer_it.
3044         (join_with_view::_Iterator::operator==): Adjust constraints
3045         as per P2770R0.
3046         (join_with_view::_Sentinel::operator==): Use _M_get_outer
3047         instead of _M_outer_it.
3048         * testsuite/std/ranges/adaptors/p2770r0.cc: New test.
3049
3050 2023-08-17  Patrick Palka  <ppalka@redhat.com>
3051
3052         PR libstdc++/108827
3053         * include/std/ranges (__adaptor::_RangeAdaptorClosure):
3054         Convert into a CRTP class template.  Move hidden operator|
3055         friends into namespace scope and adjust their constraints.
3056         (__closure::__is_range_adaptor_closure_fn): Define.
3057         (__closure::__is_range_adaptor_closure): Define.
3058         (__adaptor::_Partial): Adjust use of _RangeAdaptorClosure.
3059         (__adaptor::_Pipe): Likewise.
3060         (views::_All): Likewise.
3061         (views::_Join): Likewise.
3062         (views::_Common): Likewise.
3063         (views::_Reverse): Likewise.
3064         (views::_Elements): Likewise.
3065         (views::_Adjacent): Likewise.
3066         (views::_AsRvalue): Likewise.
3067         (views::_Enumerate): Likewise.
3068         (views::_AsConst): Likewise.
3069         * testsuite/std/ranges/adaptors/all.cc: Reinstate assertion
3070         expecting that adding empty range adaptor closure objects to a
3071         pipeline doesn't increase the size of a pipeline.
3072
3073 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3074
3075         * include/std/format (__format::_Pres_type): Add _Pres_F.
3076         (__formatter_fp::parse): Use _Pres_F for 'F'.
3077         (__formatter_fp::format): Set __upper for _Pres_F.
3078         * testsuite/std/format/functions/format.cc: Check formatting of
3079         infinity and NaN for each presentation type.
3080
3081 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3082
3083         * include/Makefile.in: Regenerate.
3084
3085 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3086
3087         * testsuite/24_iterators/move_iterator/p2520r0.cc: Add no_pch.
3088         * testsuite/std/format/functions/format.cc: Likewise.
3089         * testsuite/std/format/functions/format_c++23.cc: Likewise.
3090
3091 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3092
3093         * testsuite/lib/dg-options.exp (add_options_for_no_pch): Remove
3094         any "-include bits/stdc++.h" from options and add the macro to
3095         the existing options instead of replacing them.
3096
3097 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
3098
3099         * include/bits/basic_string.tcc (resize_and_overwrite): Invoke
3100         the callable with the same size as resize_and_overwrite was
3101         called with.
3102         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
3103         Check with small values for the new size.
3104         * testsuite/std/format/functions/format.cc: Check wide
3105         formatting of double values that produce small strings.
3106         * testsuite/std/format/functions/format_c++23.cc: New test.
3107
3108 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
3109
3110         * include/bits/version.def (stds): Update value for C++23.
3111         * include/bits/version.h: Regenerate.
3112
3113 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
3114
3115         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
3116         Fix name of upstream file this was derived from.
3117         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
3118         Likewise.
3119         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
3120         Likewise.
3121         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
3122         Likewise.
3123         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h: Likewise.
3124
3125 2023-08-16  Arsen Arsenović  <arsen@aarsen.me>
3126
3127         * libsupc++/typeinfo: Switch to bits/version.h for
3128         __cpp_lib_constexpr_typeinfo.
3129         * libsupc++/new: Switch to bits/version.h for
3130         __cpp_lib_{launder,hardware_interference_size,destroying_delete}.
3131         (launder): Guard behind __cpp_lib_launder.
3132         (hardware_destructive_interference_size)
3133         (hardware_constructive_interference_size): Guard behind
3134         __cpp_lib_hardware_interference_size.
3135         * libsupc++/exception: Switch to bits/version.h for
3136         __cpp_lib_uncaught_exceptions.
3137         (uncaught_exceptions): Guard behind __cpp_lib_uncaught_exceptions.
3138         * libsupc++/compare: Switch to bits/version.h for
3139         __cpp_lib_three_way_comparison.
3140         (three_way_comparable, three_way_comparable_with)
3141         (compare_three_way, weak_order, strong_order, partial_order):
3142         Guard behind __cpp_lib_three_way_comparison >= 201907L.
3143         * include/std/chrono: Drop __cpp_lib_chrono definition.
3144         * include/std/vector: Switch to bits/version.h for
3145         __cpp_lib_erase_if.
3146         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3147         * include/std/variant: Switch to bits/version.h for
3148         __cpp_lib_variant.  Guard whole header behind that FTM.
3149         * include/std/utility: Switch to bits/version.h for
3150         __cpp_lib_{exchange_function,constexpr_algorithms,as_const},
3151         __cpp_lib_{integer_comparison_functions,to_underlying}, and
3152         __cpp_lib_unreachable.
3153         (exchange): Guard behind __cpp_lib_exchange_function.
3154         (cmp_equal, cmp_not_equal, cmp_less, cmp_greater, cmp_less_equal)
3155         (cmp_greater_equal, in_range): Guard behind
3156         __cpp_lib_integer_comparison_functions.
3157         (to_underlying): Guard behind __cpp_lib_to_underlying.
3158         (unreachable): Guard behind __cpp_lib_unreachable.
3159         * include/std/type_traits: Switch to bits/version.h for
3160         __cpp_lib_is_{null_pointer,final,nothrow_convertible,aggregate},
3161         __cpp_lib_is_{constant_evaluated,invocable,layout_compatible},
3162         __cpp_lib_is_{pointer_interconvertible,scoped_enum,swappable},
3163         __cpp_lib_{logical_traits,reference_from_temporary,remove_cvref},
3164         __cpp_lib_{result_of_sfinae,transformation_trait_aliases},
3165         __cpp_lib_{type_identity,type_trait_variable_templates},
3166         __cpp_lib_{unwrap_ref,void_t,integral_constant_callable},
3167         __cpp_lib_{bool_constant,bounded_array_traits}, and
3168         __cpp_lib_has_unique_object_representations.
3169         (integral_constant::operator()): Guard behind
3170         __cpp_lib_integral_constant_callable.
3171         (bool_constant): Guard behind __cpp_lib_bool_constant.
3172         (conjunction, disjunction, negation, conjunction_v, disjunction_v)
3173         (negation_v): Guard behind __cpp_lib_logical_traits.
3174         (is_null_pointer): Guard behind __cpp_lib_is_null_pointer.
3175         (is_final): Guard behind __cpp_lib_is_final.
3176         (is_nothrow_convertible, is_nothrow_convertible_v): Guard behind
3177         __cpp_lib_is_nothrow_convertible.
3178         (remove_const_t, remove_volatile_t, remove_cv_t)
3179         (add_const_t, add_volatile_t, add_cv_t): Guard behind
3180         __cpp_lib_transformation_trait_aliases.
3181         (void_t): Guard behind __cpp_lib_void_t.
3182         (is_swappable_with_v, is_nothrow_swappable_with_v)
3183         (is_swappable_with, is_nothrow_swappable_with): Guard behind
3184         __cpp_lib_is_swappable.
3185         (is_nothrow_invocable_r, is_invocable_r, invoke_result)
3186         (is_invocable, invoke_result_t): Guard behind
3187         __cpp_lib_is_invocable.
3188         (alignment_of_v, extent_v, has_virtual_destructor_v)
3189         (is_abstract_v, is_arithmetic_v, is_array_v)
3190         (is_assignable_v, is_base_of_v, is_class_v, is_compound_v)
3191         (is_constructible_v, is_const_v, is_convertible_v)
3192         (is_copy_assignable_v, is_copy_constructible_v)
3193         (is_default_constructible_v, is_destructible_v)
3194         (is_empty_v, is_enum_v, is_final_v, is_floating_point_v)
3195         (is_function_v, is_fundamental_v, is_integral_v)
3196         (is_invocable_r_v, is_invocable_v, is_literal_type_v)
3197         (is_lvalue_reference_v, is_member_function_pointer_v)
3198         (is_member_object_pointer_v, is_member_pointer_v)
3199         (is_move_assignable_v, is_move_constructible_v)
3200         (is_nothrow_assignable_v, is_nothrow_constructible_v)
3201         (is_nothrow_copy_assignable_v, is_nothrow_copy_constructible_v)
3202         (is_nothrow_default_constructible_v, is_nothrow_destructible_v)
3203         (is_nothrow_invocable_r_v, is_nothrow_invocable_v)
3204         (is_nothrow_move_assignable_v, is_nothrow_move_constructible_v)
3205         (is_null_pointer_v, is_object_v, is_pod_v, is_pointer_v)
3206         (is_polymorphic_v, is_reference_v, is_rvalue_reference_v)
3207         (is_same_v, is_scalar_v, is_signed_v, is_standard_layout_v)
3208         (is_trivially_assignable_v, is_trivially_constructible_v)
3209         (is_trivially_copyable_v, is_trivially_copy_assignable_v)
3210         (is_trivially_copy_constructible_v)
3211         (is_trivially_default_constructible_v)
3212         (is_trivially_destructible_v, is_trivially_move_assignable_v)
3213         (is_trivially_move_constructible_v, is_trivial_v, is_union_v)
3214         (is_unsigned_v, is_void_v, is_volatile_v, rank_v, as variadic):
3215         Guard behind __cpp_lib_type_trait_variable_templates.
3216         (has_unique_object_representations)
3217         (has_unique_object_representations_v): Guard behind
3218         __cpp_lib_has_unique_object_representation.
3219         (is_aggregate): Guard behind __cpp_lib_is_aggregate.
3220         (remove_cvref, remove_cvref_t): Guard behind
3221         __cpp_lib_remove_cvref.
3222         (type_identity, type_identity_t): Guard behind
3223         __cpp_lib_type_identity.
3224         (unwrap_reference, unwrap_reference_t, unwrap_ref_decay)
3225         (unwrap_ref_decay_t): Guard behind __cpp_lib_unwrap_ref.
3226         (is_bounded_array_v, is_unbounded_array_v, is_bounded_array)
3227         (is_unbounded_array): Guard behind __cpp_lib_bounded_array_traits.
3228         (is_scoped_enum, is_scoped_enum_v): Guard behind
3229         __cpp_lib_is_scoped_enum.
3230         (reference_constructs_from_temporary)
3231         (reference_constructs_from_temporary_v): Guard behind
3232         __cpp_lib_reference_from_temporary.
3233         * include/std/tuple: Switch to bits/version.h for
3234         __cpp_lib_{constexpr_tuple,tuple_by_type,apply_make_from_tuple}.
3235         (get<T>): Guard behind __cpp_lib_tuple_by_type.
3236         (apply): Guard behind __cpp_lib_apply.
3237         (make_from_tuple): Guard behind __cpp_lib_make_from_tuple.
3238         * include/std/syncstream: Switch to bits/version.h for
3239         __cpp_lib_syncbuf.  Guard header behind that FTM.
3240         * include/std/string_view: Switch to bits/version.h for
3241         __cpp_lib_{string_{view,contains},constexpr_string_view} and
3242         __cpp_lib_starts_ends_with.
3243         (basic_string_view::starts_with, basic_string_view::ends_with):
3244         Guard behind __cpp_lib_starts_ends_with.
3245         [C++23 && _GLIBCXX_HOSTED && !defined(__cpp_lib_string_contains)]:
3246         Assert as impossible ithout a bug in C++23.
3247         * include/std/string: Switch to bits/version.h for
3248         __cpp_lib_erase_if.
3249         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3250         * include/std/thread: Switch to bits/version.h for
3251         __cpp_lib_jthread.
3252         * include/std/stop_token: Switch to bits/version.h for
3253         __cpp_lib_jthread.
3254         * include/std/spanstream: Switch to bits/version.h for
3255         __cpp_lib_spanstream.  Guard header behind that FTM.
3256         * include/std/span: Switch to bits/version.h for __cpp_lib_span.
3257         Guard header behind that FTM.
3258         * include/std/source_location: Switch to bits/version.h for
3259         __cpp_lib_source_location.  Guard header with that FTM.
3260         * include/std/shared_mutex: Switch to bits/version.h for
3261         __cpp_lib_shared{,_timed}_mutex.
3262         (shared_mutex): Guard behind __cpp_lib_shared_mutex.
3263         * include/std/semaphore: Switch to bits/version.h for
3264         __cpp_lib_semaphore.  Guard header behind that FTM.
3265         * include/std/ranges: Switch to bits/version.h for
3266         __cpp_lib_ranges_{zip,chunk{,_by},slide,join_with},
3267         __cpp_lib_ranges_{repeat_stride,cartesian_product,as_rvalue},
3268         and __cpp_lib_ranges_{as_const,enumerate,iota}.
3269         (ranges::zip et al, ranges::chunk et al, ranges::slide et al)
3270         (ranges::chunk_by et al, ranges::join_with et al)
3271         (ranges::stride et al, ranges::cartesian_product et al)
3272         (ranges::as_rvalue et al, ranges::as_const et al)
3273         (ranges::enumerate et al): Guard behind appropriate FTM.
3274         * include/std/optional: Switch to bits/version.h for
3275         __cpp_lib_optional.  Guard header behind that FTM.
3276         * include/std/numeric: Switch to bits/version.h for
3277         __cpp_lib_{gcd{,_lcm},lcm,constexpr_numeric,interpolate}
3278         and __cpp_lib_parallel_algorithm.
3279         (gcd, lcm): Guard behind __cpp_lib_gcd_lcm.
3280         (midpoint): Guard behind __cpp_lib_interpolate.
3281         * include/std/numbers: Switch to bits/version.h for
3282         __cpp_lib_math_constants.  Guard header behind that FTM.
3283         * include/std/mutex: Switch to bits/version.h for
3284         __cpp_lib_scoped_lock.
3285         (scoped_Lock): Guard behind __cpp_lib_scoped_lock.
3286         * include/std/memory_resource: Switch to bits/version.h for
3287         __cpp_lib_{polymorphic_allocator,memory_resource}.
3288         (synchronized_pool_resource): Guard behind
3289         __cpp_lib_memory_resource >= 201603L.
3290         (polymorphic_allocator): Guard behind
3291         __cpp_lib_polymorphic_allocator.
3292         * include/std/memory: Switch to bits/version.h for
3293         __cpp_lib_{parallel_algorithm,atomic_value_initialization}.
3294         * include/std/list: Switch to bits/version.h for
3295         __cpp_lib_erase_if.
3296         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3297         * include/std/latch: Switch to bits/version.h for __cpp_lib_latch.
3298         Guard header behind that FTM.
3299         * include/std/iterator: Switch to bits/version.h for
3300         __cpp_lib_null_iterators.
3301         * include/std/iomanip: Switch to bits/version.h for
3302         __cpp_lib_quoted_string_io.
3303         (quoted): Guard behind __cpp_lib_quoted_string_io.
3304         * include/std/functional: Switch to bits/version.h for
3305         __cpp_lib_{invoke{,_r},constexpr_functional,bind_front} and
3306         __cpp_lib_{not_fn,booyer_moore_searcher}.
3307         (invoke): Guard behind __cpp_lib_invoke.
3308         (invoke_r): Guard behind __cpp_lib_invoke_r.
3309         (bind_front): Guard behind __cpp_lib_bind_front.
3310         (not_fn): Guard behind __cpp_lib_not_fn.
3311         (boyer_moore_searcher, boyer_moore_horspool_searcher): Guard
3312         definition behind __cpp_lib_boyer_moore_searcher.
3313         * include/std/forward_list: Switch to bits/version.h for
3314         __cpp_lib_erase_if.
3315         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3316         * include/std/format: Switch to bits/version.h for
3317         __cpp_lib_format.  Guard header behind that FTM.
3318         * include/std/filesystem: Switch to bits/version.h for
3319         __cpp_lib_filesystem.  Guard header behind that FTM.
3320         * include/std/expected: Switch to bits/version.h for
3321         __cpp_lib_expected.  Guard header behind it.
3322         * include/std/execution: Switch to bits/version.h for
3323         __cpp_lib_{execution,parallel_algorithm}.  Guard header behind
3324         either.
3325         * include/std/deque: Switch to bits/version.h for
3326         __cpp_lib_erase_if.
3327         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3328         * include/std/coroutine: Switch to bits/version.h for
3329         __cpp_lib_coroutine.  Guard header behind that FTM.
3330         * include/std/concepts: Switch to bits/version.h for
3331         __cpp_lib_concepts.  Guard header behind that FTM.
3332         * include/std/complex: Switch to bits/version.h for
3333         __cpp_lib_{complex_udls,constexpr_complex}.
3334         (operator""if, operator""i, operator""il): Guard behind
3335         __cpp_lib_complex_udls.
3336         * include/std/charconv: Swtich to bits/version.h for
3337         __cpp_lib_{to_chars,constexpr_charconv}.
3338         * include/std/bitset: Switch to bits/version.h for
3339         __cpp_lib_constexpr_bitset.
3340         * include/std/bit: Switch to bits/version.h for
3341         __cpp_lib_{bit_cast,byteswap,bitops,int_pow2,endian}.
3342         (bit_cast): Guard behind __cpp_lib_bit_cast.
3343         (byteswap): Guard behind __cpp_lib_byteswap.
3344         (rotl, rotr, countl_zero, countl_one, countr_zero, countr_one)
3345         (popcount): Guard behind __cpp_lib_bitops.
3346         (has_single_bit, bit_ceil, bit_floor, bit_width): Guard behind
3347         __cpp_lib_int_pow2.
3348         (endian): Guard behind __cpp_lib_endian.
3349         * include/std/barrier: Switch to bits/version.h for
3350         __cpp_lib_barrier.  Guard header behind that FTM.
3351         * include/std/atomic: Switch to bits/version.h for
3352         __cpp_lib_atomic_{is_always_lock_free,float,ref}
3353         and __cpp_lib_lock_free_type_aliases.
3354         (*::is_always_lock_free): Guard behind
3355         __cpp_lib_atomic_is_always_lock_free.
3356         (atomic<float>): Guard behind __cpp_lib_atomic_float.
3357         (atomic_ref): Guard behind __cpp_lib_atomic_ref.
3358         (atomic_signed_lock_free, atomic_unsigned_lock_free): Guard behind
3359         __cpp_lib_atomic_lock_free_type_aliases.
3360         * include/std/array: Switch to bits/version.h for
3361         __cpp_lib_to_array.
3362         (to_array): Guard behind __cpp_lib_to_array.
3363         * include/std/any: Switch to bits/version.h for __cpp_lib_any.
3364         Guard header behind that FTM.
3365         * include/std/algorithm: Switch to bits/version.h for
3366         __cpp_lib_parallel_algorithm.
3367         * include/c_global/cstddef: Switch to bits/version.h for
3368         __cpp_lib_byte.
3369         (byte): Guard behind __cpp_lib_byte.
3370         * include/c_global/cmath: Switch to bits/version.h for
3371         __cpp_lib_{hypot,interpolate}.
3372         (hypot3): Guard behind __cpp_lib_hypot.
3373         (lerp): Guard behind __cpp_lib_interpolate.
3374         * include/c_compatibility/stdatomic.h: Switch to
3375         bits/stl_version.h for __cpp_lib_atomic.  Guard header behind that
3376         FTM.
3377         * include/bits/utility.h: Switch to bits/version.h for
3378         __cpp_lib_{tuple_element_t,integer_sequence,ranges_zip}.
3379         (tuple_element_t): Guard behind __cpp_lib_tuple_element_t.
3380         (integer_sequence et al): Guard behind __cpp_lib_integer_sequence.
3381         * include/bits/uses_allocator_args.h: Switch to bits/version.h for
3382         __cpp_lib_make_obj_using_allocator.  Guard header behind that FTM.
3383         * include/bits/unordered_map.h: Switch to bits/version.h for
3384         __cpp_lib_unordered_map_try_emplace.
3385         (try_emplace): Guard behind __cpp_lib_unordered_map_try_emplace.
3386         * include/bits/unique_ptr.h: Switch to bits/version.h for
3387         __cpp_lib_{constexpr_memory,make_unique}.
3388         (make_unique): Guard behind __cpp_lib_make_unique.
3389         * include/bits/stl_vector.h: Switch to bits/version.h for
3390         __cpp_lib_constexpr_vector.
3391         * include/bits/stl_uninitialized.h: Switch to bits/version.h for
3392         __cpp_lib_raw_memory_algorithms.
3393         (uninitialized_default_construct)
3394         (uninitialized_default_construct_n, uninitialized_move)
3395         (uninitialized_move_n, uninitialized_value_construct)
3396         (uninitialized_value_construct_n): Guard behind
3397         __cpp_lib_raw_memory_algorithms.
3398         * include/bits/stl_tree.h: Switch to bits/version.h for
3399         __cpp_lib_generic_associative_lookup.
3400         * include/bits/stl_stack.h: Switch to bits/version.h for
3401         __cpp_lib_adaptor_iterator_pair_constructor.
3402         (stack): Guard iterator-pair constructor behind
3403         __cpp_lib_adaptor_iterator_pair_constructor.
3404         * include/bits/stl_queue.h: Switch to bits/version.h for
3405         __cpp_lib_adaptor_iterator_pair_constructor.
3406         (queue): Guard iterator-pair constructor behind
3407         __cpp_lib_adaptor_iterator_pair_constructor.
3408         * include/bits/stl_pair.h: Switch to bits/version.h for
3409         __cpp_lib_{concepts,tuples_by_type}.
3410         (get): Guard type-getting overloads behind
3411         __cpp_lib_tuples_by_type.
3412         * include/bits/stl_map.h: Switch to bits/version.h for
3413         __cpp_lib_map_try_emplace.
3414         (map<>::try_emplace): Guard behind __cpp_lib_map_try_emplace.
3415         * include/bits/stl_list.h: Switch to bits/version.h for
3416         __cpp_lib_list_remove_return_type.
3417         (__remove_return_type, _GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG)
3418         [C++20]: guard behind __cpp_lib_list_remove_return_type instead.
3419         * include/bits/stl_iterator.h: Switch to bits/version.h for
3420         __cpp_lib_{constexpr_iterator,array_constexpr} and
3421         __cpp_lib_{make_reverse_iterator,move_iterator_concept}.
3422         (make_reverse_iterator): Guard behind
3423         __cpp_lib_make_reverse_iterator.
3424         (iterator_concept et al): Guard __cpp_lib_move_iterator_concept
3425         changes behind that FTM.
3426         * include/bits/stl_function.h: Switch to bits/version.h for
3427         __cpp_lib_transparent_operators.
3428         (equal_to, not_equal_to, greater, less, greater_equal)
3429         (less_equal, bit_and, bit_or, bit_xor, bit_not, logical_and)
3430         (logical_or, logical_not, plus, minus, multiplies, divides)
3431         (modulus, negate): Guard '= void' fwdecls behind
3432         __cpp_lib_transparent_operators.
3433         (plus<void>, minus<void>, multiplies<void>, divides<void>)
3434         (modulus<void>, negate<void>, logical_and<void>, logical_or<void>)
3435         (logical_not<void>, bit_and<void>, bit_or<void>, bit_xor<void>)
3436         (equal_to<void>, not_equal_to<void>, greater<void>, less<void>)
3437         (greater_equal<void>, less_equal<void>, bit_not<void>)
3438         (__has_is_transparent): Guard behind
3439         __cpp_lib_transparent_operators.
3440         * include/bits/stl_algobase.h: Switch to bits/version.h for
3441         __cpp_lib_robust_nonmodifying_seq_ops.
3442         (robust equal, mismatch): Guard behind
3443         __cpp_lib_nonmember_container_access.
3444         * include/bits/stl_algo.h: Swtich to bits/version.h for
3445         __cpp_lib_{clamp,sample}.
3446         (clamp): Guard behind __cpp_lib_clamp.
3447         (sample): Guard behind __cpp_lib_sample.
3448         * include/bits/specfun.h: Switch to bits/version.h for
3449         __cpp_lib_math_special_functions and __STDCPP_MATH_SPEC_FUNCS__.
3450         * include/bits/shared_ptr_base.h: Switch to bits/version.h for
3451         __cpp_lib_{smart_ptr_for_overwrite,shared_ptr_arrays}.
3452         (_Sp_overwrite_tag): Guard behind
3453         __cpp_lib_smart_ptr_for_overwrite.
3454         * include/bits/shared_ptr_atomic.h: Switch to bits/version.h for
3455         __cpp_lib_atomic_shared_ptr.
3456         * include/bits/shared_ptr.h: Switch to bits/version.h for
3457         __cpp_lib_{enable_shared_from_this,shared_ptr_weak_type}.
3458         (shared_ptr<T>::weak_type): Guard behind
3459         __cpp_lib_shared_ptr_weak_type.
3460         (enable_shared_from_this<T>::weak_from_this): Guard behind
3461         __cpp_lib_enable_shared_from_this.
3462         * include/bits/ranges_cmp.h: Switch to bits/version.h for
3463         __cpp_lib_ranges.
3464         * include/bits/ranges_algo.h: Switch to bits/version.h for
3465         __cpp_lib_{shift,ranges_{contains,find_last,fold,iota}}.
3466         * include/bits/range_access.h: Switch to bits/version.h for
3467         __cpp_lib_nonmember_container_access
3468         (size, empty, data): Guard behind
3469         __cpp_lib_nonmember_container_access.
3470         (ssize): Guard behind __cpp_lib_ssize.
3471         * include/bits/ptr_traits.h: Switch to bits/version.h. for
3472         __cpp_lib_{constexpr_memory,to_address}.
3473         (to_address): Guard behind __cpp_lib_to_address.
3474         * include/bits/node_handle.h: Switch to bits/version.h for
3475         __cpp_lib_node_extract.  Guard header behind that FTM.
3476         * include/bits/move_only_function.h: Switch to bits/version.h for
3477         __cpp_lib_move_only_function.  Guard header behind that FTM.
3478         * include/bits/move.h: Switch to bits/version.h for
3479         __cpp_lib_addressof_constexpr.
3480         * include/bits/ios_base.h: Switch to bits/version.h for
3481         __cpp_lib_ios_noreplace.
3482         (noreplace): Guard with __cpp_lib_ios_noreplace.
3483         * include/bits/hashtable.h: Switch to bits/version.h for
3484         __cpp_lib_generic_unordered_lookup.
3485         (_M_equal_range_tr, _M_count_tr, _M_find_tr): Guard behind
3486         __cpp_lib_generic_unordered_lookup.
3487         * include/bits/forward_list.h: Switch to bits/version.h for
3488         __cpp_lib_list_remove_return_type.
3489         (__remove_return_type): Guard behind
3490         __cpp_lib_list_remove_return_type.
3491         * include/bits/erase_if.h: Switch to bits/version.h for
3492         __cpp_lib_erase_if.
3493         * include/bits/cow_string.h: Switch to bits/version.h for
3494         __cpp_lib_constexpr_string.
3495         * include/bits/chrono.h: Swtich to bits/version.h for
3496         __cpp_lib_chrono{,_udls}.
3497         (ceil): Guard behind __cpp_lib_chrono.
3498         (operator""ns et al): Guard behind __cpp_lib_chrono_udls.
3499         * include/bits/char_traits.h: Switch to bits/version.h for
3500         __cpp_lib_constexpr_char_traits.
3501         * include/bits/basic_string.h: Switch to bits/version.h for
3502         __cpp_lib_{constexpr_string,string_{resize_and_overwrite,udls}}.
3503         (resize_and_overwrite): Guard behind
3504         __cpp_lib_string_resize_and_overwrite.
3505         (operator""s): Guard behind __cpp_lib_string_udls.
3506         * include/bits/atomic_wait.h: Switch to bits/version.h for
3507         __cpp_lib_atomic_wait.  Guard header behind that FTM.
3508         * include/bits/atomic_base.h: Switch to bits/version.h for
3509         __cpp_lib_atomic_value_initialization and
3510         __cpp_lib_atomic_flag_test.
3511         (atomic_flag::test): Guard behind __cpp_lib_atomic_flag_test,
3512         rather than C++20.
3513         * include/bits/allocator.h: Switch to bits/version.h for
3514         __cpp_lib_incomplete_container_elements.
3515         * include/bits/alloc_traits.h: Switch to using bits/version.h for
3516         __cpp_lib_constexpr_dynamic_alloc and
3517         __cpp_lib_allocator_traits_is_always_equal.
3518         * include/bits/align.h: Switch to bits/version.h for defining
3519         __cpp_lib_assume_aligned.
3520         (assume_aligned): Guard with __cpp_lib_assume_aligned.
3521         * include/bits/algorithmfwd.h: Switch to bits/version.h for
3522         defining __cpp_lib_constexpr_algorithms.
3523         * include/std/stacktrace: Switch to bits/version.h for
3524         __cpp_lib_stacktrace.  Guard header behind that FTM.
3525         * testsuite/23_containers/array/tuple_interface/get_neg.cc:
3526         Update line numbers.
3527
3528 2023-08-16  Arsen Arsenović  <arsen@aarsen.me>
3529
3530         * include/Makefile.am (bits_freestanding): Add version.h.
3531         (allcreated): Add version.h.
3532         (${bits_srcdir}/version.h): New rule.  Regenerates
3533         version.h out of version.{def,tpl}.
3534         * include/Makefile.in: Regenerate.
3535         * include/bits/version.def: New file.  Declares a list of
3536         all feature test macros, their values and their preconditions.
3537         * include/bits/version.tpl: New file.  Turns version.def
3538         into a sequence of #if blocks.
3539         * include/bits/version.h: New file.  Generated from
3540         version.def.
3541         * include/std/version: Replace with a __glibcxx_want_all define
3542         and bits/version.h include.
3543
3544 2023-08-14  Paul Dreik  <gccpatches@pauldreik.se>
3545
3546         PR libstdc++/110860
3547         * include/std/format (__formatter_fp::format): Use frexp instead
3548         of log10.
3549
3550 2023-08-12  Ken Matsui  <kmatsui@gcc.gnu.org>
3551
3552         * include/std/type_traits (true_type): Use __bool_constant
3553         instead.
3554         (false_type): Likewise.
3555         (bool_constant): Likewise.
3556
3557 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3558
3559         PR libstdc++/110990
3560         * include/std/format (_Seq_sink::get): Only call _M_overflow if
3561         its precondition is met.
3562         (_Iter_sink::_M_finish): Likewise.
3563         (_Iter_sink<C, ContigIter>::_M_overflow): Only switch to the
3564         internal buffer after running out of space.
3565         (_Iter_sink<C, ContigIter>::_M_finish): Do not use _M_overflow.
3566         (_Counting_sink::count): Likewise.
3567         * testsuite/std/format/functions/format_to_n.cc: Check cases
3568         where the output fits into the buffer.
3569
3570 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3571
3572         PR libstdc++/104167
3573         * include/bits/chrono_io.h (operator|=, operator|): Add noexcept
3574         to _ChronoParts operators.
3575         (from_stream, parse): Define new functions.
3576         (__detail::_Parse, __detail::_Parser): New class templates.
3577         * include/std/chrono (__cpp_lib_chrono): Define to 201907L for
3578         C++20.
3579         * include/std/version (__cpp_lib_chrono): Likewise.
3580         * testsuite/20_util/duration/arithmetic/constexpr_c++17.cc:
3581         Adjust expected value of feature test macro.
3582         * testsuite/20_util/duration/io.cc: Test parsing.
3583         * testsuite/std/time/clock/file/io.cc: Likewise.
3584         * testsuite/std/time/clock/gps/io.cc: Likewise.
3585         * testsuite/std/time/clock/system/io.cc: Likewise.
3586         * testsuite/std/time/clock/tai/io.cc: Likewise.
3587         * testsuite/std/time/clock/utc/io.cc: Likewise.
3588         * testsuite/std/time/day/io.cc: Likewise.
3589         * testsuite/std/time/month/io.cc: Likewise.
3590         * testsuite/std/time/month_day/io.cc: Likewise.
3591         * testsuite/std/time/weekday/io.cc: Likewise.
3592         * testsuite/std/time/year/io.cc: Likewise.
3593         * testsuite/std/time/year_month/io.cc: Likewise.
3594         * testsuite/std/time/year_month_day/io.cc: Likewise.
3595         * testsuite/std/time/syn_c++20.cc: Check value of macro and for
3596         the existence of parse and from_stream in namespace chrono.
3597         * testsuite/std/time/clock/local/io.cc: New test.
3598         * testsuite/std/time/parse.cc: New test.
3599
3600 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3601
3602         PR libstdc++/110860
3603         * include/std/format (__formatter_fp::format): Do not call log10
3604         with zero values.
3605
3606 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3607
3608         * python/libstdcxx/v6/printers.py (StdChronoCalendarPrinter):
3609         Check for out-of-range month an weekday indices.
3610         * testsuite/libstdc++-prettyprinters/chrono.cc: Check invalid
3611         month and weekday values.
3612
3613 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3614
3615         * include/bits/stl_iterator.h (__clamped_iter_cat_t): Remove.
3616
3617 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
3618
3619         PR libstdc++/110974
3620         * include/std/format (_Spec::_S_parse_width_or_precision): Check
3621         for empty range before dereferencing iterator.
3622         * testsuite/std/format/string.cc: Check for expected exception.
3623         Fix expected exception message in test_pr110862() and actually
3624         call it.
3625
3626 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
3627
3628         PR libstdc++/110968
3629         * include/std/format (__formatter_fp::format): Check return
3630         value of _M_localize.
3631         * testsuite/std/format/functions/format.cc: Check classic
3632         locale.
3633
3634 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
3635
3636         PR libstdc++/110970
3637         * include/bits/stl_iterator.h (__detail::__move_iter_cat): Use
3638         __iter_category_t.
3639         (iterator_traits<common_iterator<I, S>>::_S_iter_cat): Likewise.
3640         (__detail::__basic_const_iterator_iter_cat): Likewise.
3641         * include/bits/stl_iterator_base_types.h (__iterator_category_t):
3642         Rename to __iter_category_t.
3643
3644 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3645
3646         * include/bits/chrono.h (duration_cast): Do not use braces
3647         around statements for C++11 constexpr rules.
3648         * include/bits/stl_algobase.h (__lg): Rewrite as a single
3649         statement for C++11 constexpr rules.
3650         * include/experimental/bits/fs_path.h (path::string): Use
3651         _GLIBCXX17_CONSTEXPR not _GLIBCXX_CONSTEXPR for 'if constexpr'.
3652         * include/std/charconv (__to_chars_8): Initialize variable for
3653         C++17 constexpr rules.
3654
3655 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3656
3657         * include/bits/list.tcc (list::sort(Cmp)): Fix -Wsign-compare
3658         warning for loop condition.
3659
3660 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3661
3662         * include/std/complex: Add diagnostic pragma for clang.
3663
3664 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3665
3666         * include/bits/shared_ptr_atomic.h (atomic): Change class-head
3667         to struct.
3668         * include/bits/stl_tree.h (_Rb_tree_merge_helper): Change
3669         class-head to struct in friend declaration.
3670         * include/std/chrono (tzdb_list::_Node): Likewise.
3671         * include/std/future (_Task_state_base, _Task_state): Likewise.
3672         * include/std/scoped_allocator (__inner_type_impl): Likewise.
3673         * include/std/valarray (_BinClos, _SClos, _GClos, _IClos)
3674         (_ValFunClos, _RefFunClos): Change class-head to struct.
3675
3676 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3677
3678         * include/bits/alloc_traits.h (allocate): Add [[maybe_unused]]
3679         attribute.
3680         * include/bits/regex_executor.tcc: Remove name of unused
3681         parameter.
3682         * include/bits/shared_ptr_atomic.h (atomic_is_lock_free):
3683         Likewise.
3684         * include/bits/stl_uninitialized.h: Likewise.
3685         * include/bits/streambuf_iterator.h (operator==): Likewise.
3686         * include/bits/uses_allocator.h: Likewise.
3687         * include/c_global/cmath (isfinite, isinf, isnan): Likewise.
3688         * include/std/chrono (zoned_time): Likewise.
3689         * include/std/future (__future_base::_S_allocate_result):
3690         Likewise.
3691         (packaged_task): Likewise.
3692         * include/std/optional (_Optional_payload_base): Likewise.
3693         * include/std/scoped_allocator (__inner_type_impl): Likewise.
3694         * include/std/tuple (_Tuple_impl): Likewise.
3695
3696 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3697
3698         * include/bits/new_allocator.h (__new_allocator): Define copy
3699         assignment operator as defaulted.
3700         * include/std/complex (complex<float>, complex<double>)
3701         (complex<long double>): Define copy constructor as defaulted.
3702
3703 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3704
3705         * include/std/format: Fix some warnings.
3706         (__format::__write(Ctx&, basic_string_view<CharT>)): Remove
3707         unused function template.
3708
3709 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
3710
3711         PR libstdc++/110860
3712         * include/std/format (__formatter_fp::format): Do not use
3713         __builtin_abs and __builtin_log10 with arbitrary floating-point
3714         types.
3715
3716 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
3717
3718         PR libstdc++/110917
3719         * include/std/format (__format::_Iter_sink<CharT, OutIter>):
3720         Constrain partial specialization for contiguous iterators to
3721         require the value type to be CharT.
3722         * testsuite/std/format/functions/format_to.cc: New test.
3723
3724 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
3725
3726         PR libstdc++/110862
3727         * include/std/format (_Scanner::_M_on_replacement_field):
3728         Check for expected '}' before incrementing iterator.
3729         * testsuite/std/format/string.cc: Check "{0:{0}" format string.
3730
3731 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
3732
3733         * configure: Regenerate.
3734
3735 2023-08-07  Alan Modra  <amodra@gmail.com>
3736
3737         * configure: Regenerate.
3738
3739 2023-08-07  Alexander von Gluck IV  <kallisti5@unixzen.com>
3740
3741         * configure: Regenerate.
3742
3743 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
3744
3745         * configure: Regenerate.
3746
3747 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
3748
3749         * configure: Regenerate.
3750
3751 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
3752
3753         * configure: Regenerate.
3754
3755 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
3756
3757         * configure: Regenerate.
3758
3759 2023-08-06  François Dumont  <fdumont@gcc.gnu.org>
3760
3761         * config/abi/pre/gnu-versioned-namespace.ver: Add __cxa_call_terminate
3762         symbol export.
3763
3764 2023-07-30  François Dumont  <fdumont@gcc.gnu.org>
3765
3766         * src/c++11/compatibility-ldbl-facets-aliases.h: Replace #define with
3767         proper #error.
3768         * src/c++11/locale-inst-monetary.h: Likewise.
3769         * src/c++11/locale-inst-numeric.h: Likewise.
3770
3771 2023-07-27  Jonathan Wakely  <jwakely@redhat.com>
3772
3773         PR libstdc++/108046
3774         * include/std/format (__formatter_fp::format): Ensure __expc is
3775         always set for all presentation types. Set __z correctly for
3776         zero precision.
3777         * testsuite/std/format/functions/format.cc: Check problem cases.
3778
3779 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
3780
3781         PR libstdc++/110807
3782         * testsuite/23_containers/vector/bool/110807.cc: Require c++11.
3783
3784 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
3785
3786         PR libstdc++/110807
3787         * include/bits/stl_bvector.h (vector(const vector&)): Access
3788         iterators before allocating.
3789         * include/bits/vector.tcc (vector<bool>::_M_insert_range):
3790         Likewise.
3791         * testsuite/23_containers/vector/bool/110807.cc: New test.
3792
3793 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
3794
3795         * include/bits/algorithmfwd.h (random_shuffle): Add deprecated
3796         attribute.
3797         * include/bits/stl_algo.h (random_shuffle): Correct comments.
3798         * testsuite/25_algorithms/random_shuffle/1.cc: Disable
3799         deprecated warnings.
3800         * testsuite/25_algorithms/random_shuffle/59603.cc: Likewise.
3801         * testsuite/25_algorithms/random_shuffle/moveable.cc: Likewise.
3802         * testsuite/25_algorithms/random_shuffle/deprecated.cc: New
3803         test.
3804
3805 2023-07-26  Nathaniel Shead  <nathanieloshead@gmail.com>
3806
3807         * testsuite/25_algorithms/equal/constexpr_neg.cc: Update diagnostic
3808         locations.
3809         * testsuite/26_numerics/gcd/105844.cc: Likewise.
3810         * testsuite/26_numerics/lcm/105844.cc: Likewise.
3811
3812 2023-07-24  Deev Patel  <pateldeev@nevada.unr.edu>
3813
3814         * include/std/format (_Formatting_scanner::_M_on_chars): Add
3815         missing constexpr specifier.
3816         (_Formatting_scanner::_M_format_arg): Likewise.
3817
3818 2023-07-24  Jonathan Wakely  <jwakely@redhat.com>
3819
3820         PR libstdc++/110653
3821         * include/bits/basic_string.h [!HAVE_STOF] (stof): Do not
3822         throw an exception for zero result.
3823         [HAVE_BROKEN_STRTOLD] (stold): Do not use strtold.
3824
3825 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3826
3827         PR libstdc++/110077
3828         * src/c++17/floating_from_chars.cc (from_chars): Only define
3829         _Float128 overload when using __strfromf128.
3830
3831 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3832
3833         PR libstdc++/110593
3834         * include/bits/chrono.h (duration): Improve static assert
3835         messages.
3836         (__is_ratio): Move to ...
3837         * include/std/ratio (__is_ratio): ... here.
3838         (__is_ratio_v): New variable template and partial
3839         specialization.
3840         (__are_both_ratios): New function template.
3841         (__ratio_multiply, ratio_equal, ratio_less, __ratio_add):
3842         Add static assertion.
3843         * testsuite/20_util/ratio/requirements/type_constraints.cc:
3844         New test.
3845         * testsuite/20_util/duration/requirements/typedefs_neg1.cc:
3846         Adjust expected error.
3847         * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
3848         Likewise.
3849
3850 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3851
3852         * include/bits/chrono_io.h (__formatter_chrono::_M_format):
3853         Do not set __is_neg for hh_mm_ss before calling
3854         _M_format_to_ostream. Change __print_sign lambda to only check
3855         __is_neg for durations and hh_mm_ss types.
3856         (__formatter_chrono::_M_format_to_ostream): Only check __is_neg
3857         for duration types.
3858         * testsuite/std/time/hh_mm_ss/io.cc: Check negative values.
3859
3860 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3861
3862         PR libstdc++/110719
3863         * include/bits/chrono_io.h (__formatter_chrono::_S_floor_seconds):
3864         Handle duration and hh_mm_ss.
3865         * testsuite/20_util/duration/io.cc: Check locale-specific
3866         formats.
3867         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
3868
3869 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3870
3871         * include/std/format (__write_padded): Initialize first element
3872         of array to avoid a -Wmaybe-uninitialized warning.
3873
3874 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3875
3876         PR libstdc++/110719
3877         * include/bits/chrono_io.h (__formatter_chrono::_M_parse): Fix
3878         allowed modifiers for %z and %Z. Fix -Wparentheses and
3879         -Wnarrowing warnings.
3880         (__formatter_chrono::_M_format): Call new functions for %d, %e,
3881         %H, %I, %m and %M.
3882         (__formatter_chrono::_M_c): Use _S_floor_seconds to remove
3883         subsecond precision.
3884         (__formatter_chrono::_M_C_y_Y): Use _M_locale_fmt to handle
3885         modifiers.
3886         (__formatter_chrono::_M_e): Replace with _M_d_e and use
3887         _M_locale_fmt.
3888         (__formatter_chrono::_M_I): Replace with _M_H_I and use
3889         _M_locale_fmt.
3890         (__formatter_chrono::_M_m): New function.
3891         (__formatter_chrono::_M_M): New function.
3892         (__formatter_chrono::_M_r): Use _M_locale_fmt.
3893         (__formatter_chrono::_M_S): Likewise.
3894         (__formatter_chrono::_M_u_w): Likewise.
3895         (__formatter_chrono::_M_U_V_W): Likewise.
3896         (__formatter_chrono::_M_X): Use _S_floor_seconds.
3897         (__formatter_chrono::_M_Z): Fix untested branch for wchar_t.
3898         (__formatter_chrono::_S_altnum): Remove function.
3899         (__formatter_chrono::_S_dd_zero_fill): Remove function.
3900         (__formatter_chrono::_S_floor_seconds): New function.
3901         (__formatter_chrono::_M_locale_fmt): New function.
3902         * testsuite/std/time/clock/system/io.cc: Adjust expected output
3903         for locale-specific formats and check modified formats.
3904         * testsuite/std/time/clock/utc/io.cc: Likewise.
3905         * testsuite/std/time/zoned_time/io.cc: New test.
3906
3907 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3908
3909         PR libstdc++/110708
3910         * include/bits/chrono_io.h (__formatter_chrono::_M_parse): Only
3911         allow a single modifier.
3912         * testsuite/std/time/format.cc: Check multiple modifiers.
3913
3914 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3915
3916         PR libstdc++/110653
3917         * testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc:
3918         Remove dg-require-string-conversions.
3919         * testsuite/21_strings/basic_string/numeric_conversions/char/stof.cc:
3920         Likewise.
3921         * testsuite/21_strings/basic_string/numeric_conversions/char/stoi.cc:
3922         Likewise.
3923         * testsuite/21_strings/basic_string/numeric_conversions/char/stol.cc:
3924         Likewise.
3925         * testsuite/21_strings/basic_string/numeric_conversions/char/stoul.cc:
3926         Likewise.
3927
3928 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3929
3930         PR libstdc++/110653
3931         * include/bits/basic_string.h [!_GLIBCXX_HAVE_STRTOF] (stof):
3932         Define in terms of std::stod.
3933
3934 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3935
3936         PR libstdc++/110653
3937         * include/bits/basic_string.h [_GLIBCXX_HAVE_STRTOF] (stof):
3938         Define.
3939         [_GLIBCXX_HAVE_STRTOLD] (stold): Define.
3940         * include/c_global/cstdlib [_GLIBCXX_HAVE_STRTOF] (strtof):
3941         Declare in namespace std.
3942         [_GLIBCXX_HAVE_STRTOLD] (strtold): Likewise.
3943
3944 2023-07-13  Jonathan Wakely  <jwakely@redhat.com>
3945
3946         PR libstdc++/110653
3947         * include/bits/basic_string.h (stoi, stol, stoul, stod): Do not
3948         depend on _GLIBCXX_USE_C99_STDLIB.
3949         [__LONG_WIDTH__ == __LONG_LONG_WIDTH__] (stoll, stoull): Define
3950         in terms of stol and stoul respectively.
3951         [__DBL_MANT_DIG__ == __LDBL_MANT_DIG__] (stold): Define in terms
3952         of stod.
3953
3954 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
3955
3956         PR libstdc++/95048
3957         * testsuite/27_io/filesystem/path/construct/95048.cc: Check
3958         conversions to wide strings.
3959         * testsuite/experimental/filesystem/path/construct/95048.cc:
3960         Likewise.
3961
3962 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
3963
3964         * config/io/basic_file_stdio.cc: Define LFS macros.
3965         (__basic_file<char>::open): Use fopen unconditionally.
3966         (get_file_offset): Use lseek unconditionally.
3967         (__basic_file<char>::seekoff): Likewise.
3968         (__basic_file<char>::showmanyc): Use fstat unconditionally.
3969
3970 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
3971
3972         PR libstdc++/110574
3973         * acinclude.m4 (GLIBCXX_CHECK_LFS): Check for fseeko and ftello
3974         and define _GLIBCXX_USE_FSEEKO_FTELLO.
3975         * config.h.in: Regenerate.
3976         * configure: Regenerate.
3977         * config/io/basic_file_stdio.cc (xwrite) [_GLIBCXX_USE_STDIO_PURE]:
3978         Check for fwrite error correctly.
3979         (__basic_file<char>::xsgetn) [_GLIBCXX_USE_STDIO_PURE]: Check for
3980         fread error correctly.
3981         (get_file_offset): New function.
3982         (__basic_file<char>::seekoff) [_GLIBCXX_USE_STDIO_PURE]: Use
3983         fseeko if available. Use get_file_offset instead of return value
3984         of fseek.
3985         (__basic_file<char>::showmanyc): Use get_file_offset.
3986
3987 2023-07-12  Ken Matsui  <kmatsui@gcc.gnu.org>
3988
3989         * include/std/type_traits (__make_unsigned_selector): Use
3990         __is_enum built-in trait.
3991         (__make_signed_selector): Likewise.
3992         (__underlying_type_impl): Likewise.
3993
3994 2023-07-06  Tianqiang Shuai  <1101282468@qq.com>
3995
3996         * config/io/basic_file_stdio.cc (xwrite) [USE_STDIO_PURE]: Fix
3997         first argument.
3998
3999 2023-07-06  Jonathan Wakely  <jwakely@redhat.com>
4000
4001         PR libstdc++/110574
4002         * doc/xml/manual/configure.xml: Describe stdio_pure argument to
4003         --enable-cstdio.
4004         * doc/html/manual/configure.html: Regenerate.
4005
4006 2023-07-05  Thomas Rodgers  <trodgers@redhat.com>
4007
4008         * testsuite/25_algorithms/pstl/alg_sorting/set.cc: Delete
4009         file.
4010         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
4011         New file.
4012         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
4013         Likewise.
4014         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
4015         Likewise.
4016         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
4017         Likewise.
4018         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h:
4019         Likewise.
4020
4021 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4022
4023         * testsuite/23_containers/forward_list/debug/iterator1_neg.cc:
4024         Skip as UNSUPPORTED for C++98 mode.
4025         * testsuite/23_containers/forward_list/debug/iterator3_neg.cc:
4026         Likewise.
4027
4028 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4029
4030         PR libstdc++/110542
4031         * include/bits/stl_uninitialized.h (__uninitialized_default_n):
4032         Do not use std::fill_n during constant evaluation.
4033
4034 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4035
4036         * include/bits/vector.tcc (_M_default_append): Replace try-block
4037         with RAII types.
4038
4039 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4040
4041         * include/bits/iterator_concepts.h (projected): Add typename.
4042
4043 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
4044
4045         * testsuite/27_io/headers/iosfwd/synopsis.cc: Make wsyncbuf and
4046         wosyncstream depend on _GLIBCXX_USE_CXX11_ABI.
4047
4048 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
4049
4050         * include/pstl/pstl_config.h (_PSTL_PRAGMA_SIMD_SCAN,
4051         _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN, _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN):
4052         Define to OpenMP 5.0 pragmas even for GCC 10.0+.
4053         (_PSTL_UDS_PRESENT): Define to 1 for GCC 10.0+.
4054
4055 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
4056
4057         * include/bits/alloc_traits.h (_Destroy): Qualify call.
4058         * include/bits/stl_construct.h (_Destroy, _Destroy_n): Likewise.
4059         * testsuite/23_containers/vector/cons/destroy-adl.cc: New test.
4060
4061 2023-07-03  Iain Sandoe  <iain@sandoe.co.uk>
4062
4063         * testsuite/lib/libstdc++.exp: Remove additional flag handled
4064         by Darwin specs.
4065
4066 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
4067
4068         PR libstdc++/110432
4069         * acinclude.m4 (GLIBCXX_CHECK_INIT_PRIORITY): New.
4070         * config.h.in: Regenerate.
4071         * configure: Regenerate.
4072         * configure.ac: Use GLIBCXX_CHECK_INIT_PRIORITY.
4073         * include/std/iostream: Use new autoconf macro as well as
4074         __has_attribute.
4075         * src/c++98/ios_base_init.h: Use new autoconf macro instead of
4076         __has_attribute.
4077
4078 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
4079
4080         * src/c++11/random.cc (random_device::_M_init): Add maybe_unused
4081         attribute.
4082
4083 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
4084
4085         PR libstdc++/105081
4086         * src/c++11/random.cc (random_device::_M_init): Throw
4087         std::system_error when the requested device is a valid token but
4088         not available at runtime.
4089
4090 2023-06-30  Hans-Peter Nilsson  <hp@axis.com>
4091
4092         PR libstdc++/108672
4093         * include/pstl/unseq_backend_simd.h (__simd_or): Re-apply using
4094         __INT32_TYPE__ instead of int32_t.
4095
4096 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
4097
4098         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define consistently
4099         with USE_ATOMIC_LIST_HEAD.
4100         (list_mutex): Replace global object with function. Use local
4101         static object when std::mutex constructor isn't constexpr.
4102
4103 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
4104
4105         PR libstdc++/110462
4106         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check that
4107         copy_file_range can be called with loff_t* arguments.
4108         * configure: Regenerate.
4109         * src/filesystem/ops-common.h (copy_file_copy_file_range):
4110         Use loff_t for offsets.
4111
4112 2023-06-29  Tom Tromey  <tromey@adacore.com>
4113
4114         * testsuite/lib/gdb-test.exp (gdb-test): Relax type-printer
4115         regexp.
4116
4117 2023-06-28  Jan Hubicka  <jh@suse.cz>
4118
4119         PR middle-end/109849
4120         * include/bits/c++config (std::__terminate): Mark cold.
4121         * include/bits/functexcept.h: Mark everything as cold.
4122         * libsupc++/exception: Mark terminate and unexpected as cold.
4123
4124 2023-06-26  Thomas Rodgers  <trodgers@redhat.com>
4125
4126         * include/pstl/algorithm_fwd.h: Synchronize with upstream.
4127         * include/pstl/algorithm_impl.h: Likewise.
4128         * include/pstl/execution_defs.h: Likewise.
4129         * include/pstl/execution_impl.h: Likewise.
4130         * include/pstl/glue_algorithm_impl.h: Likewise.
4131         * include/pstl/glue_execution_defs.h: Likewise.
4132         * include/pstl/glue_memory_impl.h: Likewise.
4133         * include/pstl/glue_numeric_impl.h: Likewise.
4134         * include/pstl/memory_impl.h: Likewise.
4135         * include/pstl/numeric_fwd.h: Likewise.
4136         * include/pstl/numeric_impl.h: Likewise.
4137         * include/pstl/parallel_backend.h: Likewise.
4138         * include/pstl/parallel_backend_serial.h: Likewise.
4139         * include/pstl/parallel_backend_tbb.h: Likewise.
4140         * include/pstl/parallel_impl.h: Likewise.
4141         * include/pstl/pstl_config.h: Likewise.
4142         * include/pstl/unseq_backend_simd.h: Likewise.
4143         * include/pstl/utils.h: Likewise.
4144         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc:
4145         Likewise.
4146         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc:
4147         Likewise.
4148         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc:
4149         Likewise.
4150         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc:
4151         Likewise.
4152         * testsuite/25_algorithms/pstl/alg_merge/merge.cc: Likewise.
4153         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc:
4154         Likewise.
4155         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc:
4156         Likewise.
4157         * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc:
4158         Likewise.
4159         * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc:
4160         Likewise.
4161         * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc:
4162         Likewise.
4163         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc:
4164         Likewise.
4165         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc:
4166         Likewise.
4167         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc:
4168         Likewise.
4169         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc:
4170         Likewise.
4171         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc:
4172         Likewise.
4173         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc:
4174         Likewise.
4175         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc:
4176         Likewise.
4177         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc:
4178         Likewise.
4179         * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc:
4180         Likewise.
4181         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc:
4182         Likewise.
4183         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc:
4184         Likewise.
4185         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc:
4186         Likewise.
4187         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc:
4188         Likewise.
4189         * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc:
4190         Likewise.
4191         * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc:
4192         Likewise.
4193         * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc:
4194         Likewise.
4195         * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc:
4196         Likewise.
4197         * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc:
4198         Likewise.
4199         * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc:
4200         Likewise.
4201         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc:
4202         Likewise.
4203         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc:
4204         Likewise.
4205         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc:
4206         Likewise.
4207         * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc:
4208         Likewise.
4209         * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc:
4210         Likewise.
4211         * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc:
4212         Likewise.
4213         * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc:
4214         Likewise.
4215         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc:
4216         Likewise.
4217         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc:
4218         Likewise.
4219         * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc:
4220         Likewise.
4221         * testsuite/25_algorithms/pstl/alg_sorting/includes.cc:
4222         Likewise.
4223         * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc:
4224         Likewise.
4225         * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc:
4226         Likewise.
4227         * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc:
4228         Likewise.
4229         * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc:
4230         Likewise.
4231         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc:
4232         Likewise.
4233         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc:
4234         Likewise.
4235         * testsuite/25_algorithms/pstl/alg_sorting/set.cc:
4236         Likewise.
4237         * testsuite/25_algorithms/pstl/alg_sorting/sort.cc:
4238         Likewise.
4239         * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc:
4240         Likewise.
4241         * testsuite/26_numerics/pstl/numeric_ops/reduce.cc:
4242         Likewise.
4243         * testsuite/26_numerics/pstl/numeric_ops/scan.cc:
4244         Likewise.
4245         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
4246         Likewise.
4247         * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc:
4248         Likewise.
4249         * testsuite/util/pstl/test_utils.h:
4250         Likewise.
4251
4252 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4253
4254         PR libstdc++/110239
4255         * include/std/format (__format::__parse_integer): Fix buffer
4256         overflow for wide chars.
4257         (formatter<const void*, C>::format): Cast to uintptr_t instead
4258         of uint64_t.
4259         * testsuite/std/format/string.cc: Test too-large widths.
4260
4261 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4262
4263         * include/bits/iterator_concepts.h (projected): Replace class
4264         template with alias template denoting an ADL-proofed helper.
4265         (incremental_traits<projected<Iter, Proj>>): Remove.
4266         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
4267         New test.
4268
4269 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4270
4271         * include/debug/helper_functions.h (__get_distance)
4272         (__check_singular, __valid_range_aux, __valid_range): Qualify
4273         calls to disable ADL.
4274         (__check_singular_aux(const _Safe_iterator_base*)): Declare
4275         overload that was previously found via ADL.
4276
4277 2023-06-23  Jonathan Wakely  <jwakely@redhat.com>
4278
4279         * include/bits/vector.tcc (_M_realloc_insert): Replace try-block
4280         with RAII types.
4281
4282 2023-06-20  Jonathan Wakely  <jwakely@redhat.com>
4283
4284         * include/std/array (to_array(T(&)[N])): Remove redundant
4285         condition.
4286         (to_array(T(&&)[N])): Remove redundant std::move.
4287
4288 2023-06-16  Alexandre Oliva  <oliva@adacore.com>
4289
4290         * testsuite/20_util/from_chars/4.cc: Skip long double on
4291         aarch64-rtems.
4292
4293 2023-06-16  Joel Brobecker  <brobecker@adacore.com>
4294
4295         * configure.ac ["x${with_newlib}" = "xyes"]: Define
4296         HAVE_HYPOTF.  Add compile-checks for various long double
4297         math functions as well.
4298         * configure: Regenerate.
4299
4300 2023-06-14  Jonny Grant  <jg@jguk.org>
4301
4302         * doc/xml/manual/extensions.xml: Remove demangle exception
4303         description and include.
4304         * doc/html/manual/ext_demangling.html: Regenerate.
4305
4306 2023-06-10  Hans-Peter Nilsson  <hp@axis.com>
4307
4308         * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc (main)
4309         [! SIMULATOR_TEST]: Also exclude running test05.
4310         * testsuite/27_io/basic_istream/ignore/char/94749.cc: Ditto.
4311
4312 2023-06-09  Ken Matsui  <kmatsui@cs.washington.edu>
4313
4314         * include/std/type_traits: Use using instead of typedef
4315
4316 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4317
4318         PR libstdc++/110077
4319         * src/c++17/floating_from_chars.cc (from_chars) <_Float128>:
4320         Only define if _Float128 and long double have different
4321         representations.
4322
4323 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4324
4325         PR libstdc++/100285
4326         * include/experimental/internet [IPPROTO_TCP || IPPROTO_UDP]
4327         (basic_endpoint, basic_resolver_entry, resolver_base)
4328         (basic_resolver_results, basic_resolver): Only define if the tcp
4329         or udp protocols will be defined.
4330
4331 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4332
4333         * acinclude.m4 (libtool_VERSION): Update to 6.0.33.
4334         * configure: Regenerate.
4335         * doc/xml/manual/abi.xml: Add libstdc++.so.6.0.33.
4336         * doc/html/manual/abi.html: Regenerate.
4337
4338 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4339
4340         PR libstdc++/110149
4341         * include/std/format (formatter<const void*, charT>::parse):
4342         Only alow 0 and P for C++26 and non-strict modes.
4343         (formatter<const void*, charT>::format): Use toupper for P
4344         type, and insert zero-fill characters for 0 option.
4345         * testsuite/std/format/functions/format.cc: Check pointer
4346         formatting. Only check P2510R3 extensions conditionally.
4347         * testsuite/std/format/parse_ctx.cc: Only check P2510R3
4348         extensions conditionally.
4349
4350 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4351
4352         PR libstdc++/110167
4353         * include/std/array (to_array): Initialize arrays of trivial
4354         types using memcpy. For non-trivial types, use lambda
4355         expressions instead of a separate helper function.
4356         (__to_array): Remove.
4357         * testsuite/23_containers/array/creation/110167.cc: New test.
4358
4359 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4360
4361         * testsuite/23_containers/deque/modifiers/emplace/52799.cc:
4362         Removed.
4363         * testsuite/23_containers/deque/modifiers/emplace/const_iterator.cc:
4364         Removed.
4365         * testsuite/23_containers/list/modifiers/emplace/52799.cc:
4366         Removed.
4367         * testsuite/23_containers/list/modifiers/emplace/const_iterator.cc:
4368         Removed.
4369         * testsuite/23_containers/vector/modifiers/emplace/52799.cc:
4370         Removed.
4371         * testsuite/23_containers/vector/modifiers/emplace/const_iterator.cc:
4372         Removed.
4373         * testsuite/23_containers/deque/modifiers/emplace/1.cc: New
4374         test.
4375         * testsuite/23_containers/list/modifiers/emplace/1.cc: New
4376         test.
4377         * testsuite/23_containers/vector/modifiers/emplace/1.cc: New
4378         test.
4379
4380 2023-06-07  Jakub Jelinek  <jakub@redhat.com>
4381
4382         PR libstdc++/110145
4383         * testsuite/20_util/to_chars/double.cc: Include <cfloat>.
4384         (double_to_chars_test_cases,
4385         double_scientific_precision_to_chars_test_cases_2,
4386         double_fixed_precision_to_chars_test_cases_2): #if out 1e126, 4.91e-6
4387         and 5.547e-6 tests if FLT_EVAL_METHOD is negative or larger than 1.
4388         Add unconditional tests with corresponding double constants
4389         0x1.7a2ecc414a03fp+418, 0x1.4981285e98e79p-18 and
4390         0x1.7440bbff418b9p-18.
4391
4392 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4393
4394         * testsuite/util/testsuite_abi.cc (check_version): Re-add
4395         CXXABI_1.3.14.
4396
4397 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4398
4399         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
4400         Require effective target exceptions_enabled instead of using
4401         dg-skip-if.
4402         * testsuite/23_containers/vector/capacity/constexpr.cc: Expect
4403         shrink_to_fit() to be a no-op without exceptions enabled.
4404         * testsuite/23_containers/vector/capacity/shrink_to_fit.cc:
4405         Likewise.
4406         * testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
4407         Require effective target exceptions_enabled.
4408         * testsuite/ext/malloc_allocator/check_allocate_max_size.cc:
4409         Likewise.
4410         * testsuite/ext/mt_allocator/check_allocate_max_size.cc:
4411         Likewise.
4412         * testsuite/ext/new_allocator/check_allocate_max_size.cc:
4413         Likewise.
4414         * testsuite/ext/pool_allocator/check_allocate_max_size.cc:
4415         Likewise.
4416         * testsuite/ext/throw_allocator/check_allocate_max_size.cc:
4417         Likewise.
4418
4419 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4420
4421         * testsuite/20_util/duration/cons/2.cc: Use values that aren't
4422         affected by rounding.
4423         * testsuite/20_util/from_chars/5.cc: Cast arithmetic result to
4424         double before comparing for equality.
4425         * testsuite/20_util/from_chars/6.cc: Likewise.
4426         * testsuite/20_util/variant/86874.cc: Use values that aren't
4427         affected by rounding.
4428         * testsuite/25_algorithms/lower_bound/partitioned.cc: Compare to
4429         original value instead of to floating-point-literal.
4430         * testsuite/26_numerics/random/discrete_distribution/cons/range.cc:
4431         Cast arithmetic result to double before comparing for equality.
4432         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/range.cc:
4433         Likewise.
4434         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/range.cc:
4435         Likewise.
4436         * testsuite/26_numerics/valarray/transcend.cc (eq): Check that
4437         the absolute difference is less than 0.01 instead of comparing
4438         to two decimal places.
4439         * testsuite/27_io/basic_istream/extractors_arithmetic/char/01.cc:
4440         Cast arithmetic result to double before comparing for equality.
4441         * testsuite/27_io/basic_istream/extractors_arithmetic/char/09.cc:
4442         Likewise.
4443         * testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc:
4444         Likewise.
4445         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc:
4446         Likewise.
4447         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc:
4448         Likewise.
4449         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/10.cc:
4450         Likewise.
4451         * testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
4452
4453 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4454
4455         Revert:
4456         2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4457
4458         * configure.ac: Use AS_IF.
4459         * configure: Regenerate.
4460
4461 2023-06-07  Thomas Schwinge  <thomas@codesourcery.com>
4462
4463         * testsuite/lib/prune.exp (libstdc++-dg-prune): Support
4464         'UNSUPPORTED: [...]: exception handling disabled'.
4465
4466 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4467
4468         * testsuite/util/testsuite_abi.cc (check_version): Add
4469         CXXABI_1.3.15 symver and make it the latestp. Remove
4470         GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
4471
4472 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4473             Jakub Jelinek  <jakub@redhat.com>
4474
4475         PR libstdc++/104772
4476         * include/std/limits: (numeric_limits<__float128>): Define
4477         for __STRICT_ANSI__ as well.
4478         * testsuite/18_support/numeric_limits/128bit.cc: Remove
4479         check for __STRICT_ANSI__.
4480
4481 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4482
4483         * configure.ac: Use AS_IF.
4484         * configure: Regenerate.
4485
4486 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
4487
4488         PR libstdc++/109822
4489         * include/experimental/bits/simd_builtin.h (_S_store): Rewrite
4490         to avoid casts to other vector types. Implement store as
4491         succession of power-of-2 sized memcpy to avoid PR90424.
4492
4493 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
4494
4495         PR libstdc++/110054
4496         * include/experimental/bits/simd_builtin.h (_S_masked_store):
4497         Call into deduced ABI's SimdImpl after conversion.
4498         * include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
4499         Don't use _mm_maskmoveu_si128. Use the generic fall-back
4500         implementation. Also fix masked stores without SSE2, which
4501         were not doing anything before.
4502
4503 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
4504
4505         * include/experimental/bits/simd.h (__bit_cast): Use
4506         __gnu__::__vector_size__ instead of gnu::vector_size.
4507
4508 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4509
4510         PR libstdc++/110139
4511         * include/std/array (__array_traits<T, 0>::operator T*()): Make
4512         conversion operator explicit.
4513         (array::front): Use size_type as subscript operand.
4514         (array::data): Use static_cast to make conversion explicit.
4515         * testsuite/23_containers/array/element_access/110139.cc: New
4516         test.
4517
4518 2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
4519
4520         * include/bits/locale_classes.tcc: Remove check for
4521         codecvt<char8_t, char, mbstate_t> facet.
4522
4523 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4524
4525         * src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
4526         close-on-exec flag on file descriptors.
4527
4528 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4529
4530         PR libstdc++/108178
4531         * src/filesystem/ops-common.h (do_copy_file): Check for empty
4532         files by trying to read a character.
4533         * testsuite/27_io/filesystem/operations/copy_file_108178.cc:
4534         New test.
4535
4536 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
4537
4538         * acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
4539         * config.h.in: Regenerate.
4540         * configure: Regenerate.
4541         * src/filesystem/ops-common.h (copy_file_copy_file_range):
4542         Define new function.
4543         (do_copy_file): Use it.
4544
4545 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
4546
4547         * acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
4548         * config.h.in: Regenerate.
4549         * configure: Regenerate.
4550         * src/filesystem/ops-common.h (copy_file_sendfile): Define new
4551         function for sendfile logic. Loop to support large files. Skip
4552         zero-length files.
4553         (do_copy_file): Use it.
4554
4555 2023-06-04  Jason Merrill  <jason@redhat.com>
4556
4557         PR c++/97720
4558         * libsupc++/eh_call.cc (__cxa_call_terminate): Take void*.
4559         * config/abi/pre/gnu.ver: Add it.
4560
4561 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
4562
4563         * include/parallel/algobase.h: Include <parallel/search.h>.
4564
4565 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4566
4567         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
4568         Add const to equality operator.
4569
4570 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4571
4572         * include/std/expected (expected::and_then, expected::or_else)
4573         (expected::transform_error): Use _M_val and _M_unex instead of
4574         calling value() and error(), as per LWG 3938.
4575         (expected::transform): Likewise. Remove incorrect std::move
4576         calls from lvalue overloads.
4577         (expected<void, E>::and_then, expected<void, E>::or_else)
4578         (expected<void, E>::transform): Use _M_unex instead of calling
4579         error().
4580         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
4581         and transform, and for std::expected<void, E>.
4582         * testsuite/20_util/expected/lwg3938.cc: New test.
4583
4584 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4585
4586         PR libstdc++/110060
4587         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
4588         Remove.
4589         (vector::size, vector::capacity): Remove calls to _M_invariant.
4590         * include/bits/vector.tcc (vector::_M_fill_assign): Add
4591         optimization hint to reallocating path.
4592         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
4593         Likewise.
4594         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
4595         to...
4596         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
4597         ...here. Check assign(FwdIter, FwdIter) too.
4598         * testsuite/23_containers/vector/types/1.cc: Revert addition
4599         of -Wno-stringop-overread option.
4600
4601 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4602
4603         * doc/xml/manual/evolution.xml: Document removal of implicit
4604         allocator rebinding extensions in strict mode and for C++20.
4605         * doc/html/*: Regenerate.
4606
4607 2023-06-01  Jason Merrill  <jason@redhat.com>
4608
4609         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
4610         handlers in the cleanup phase.
4611
4612 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
4613
4614         PR libstdc++/110050
4615         * include/experimental/bits/simd.h (__vectorized_sizeof): With
4616         __have_neon_a32 only single-precision float works (in addition
4617         to integers).
4618
4619 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
4620
4621         * include/bits/stl_algo.h
4622         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
4623         * include/bits/stl_algobase.h: ...here.
4624         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
4625         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
4626         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
4627         Move...
4628         * include/parallel/algobase.h: ...here.
4629         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
4630         includes. Include <bits/stl_algobase.h>.
4631
4632 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4633
4634         PR libstdc++/109818
4635         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
4636         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
4637         * config.h.in: Regenerate.
4638         * configure: Regenerate.
4639         * include/c_global/cmath (float_t, double_t): Guard using new
4640         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
4641
4642 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4643
4644         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
4645         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
4646         for C99 rounding functions to here.
4647         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
4648         functions from here.
4649         * config.h.in: Regenerate.
4650         * configure: Regenerate.
4651         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
4652         of _GLIBCXX_USE_C99_MATH_TR1.
4653         * include/bits/random.tcc: Likewise.
4654         * include/c_compatibility/math.h: Likewise.
4655         * include/c_global/cmath: Likewise.
4656         * include/ext/random: Likewise.
4657         * include/ext/random.tcc: Likewise.
4658         * include/std/complex: Likewise.
4659         * testsuite/20_util/from_chars/4.cc: Likewise.
4660         * testsuite/20_util/from_chars/8.cc: Likewise.
4661         * testsuite/26_numerics/complex/proj.cc: Likewise.
4662         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
4663         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
4664         Likewise.
4665         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
4666         Likewise.
4667         * testsuite/util/testsuite_random.h: Likewise.
4668
4669 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4670
4671         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
4672         function.
4673         (vector::size(), vector::capacity()): Call _M_invariant().
4674         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
4675         * testsuite/23_containers/vector/types/1.cc: Add suppression for
4676         false positive warning (PR110060).
4677
4678 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4679
4680         PR libstdc++/109921
4681         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
4682         defined before trying to use _Float128.
4683
4684 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4685
4686         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
4687         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
4688         * configure: Regenerate.
4689
4690 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4691
4692         * include/bits/unique_lock.h: Include <bits/error_constants.h>
4693         here for std::errc constants.
4694         * include/std/mutex: Do not include <bits/error_constants.h> and
4695         <exception> here.
4696
4697 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4698
4699         * configure.ac: Replace use of -o operator for test.
4700         * configure: Regenerate.
4701
4702 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4703
4704         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
4705         noexcept to all constructors except the default constructor.
4706         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
4707         (scoped_allocator_adaptor::outer_allocator): Likewise.
4708         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
4709
4710 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4711
4712         PR libstdc++/104772
4713         * include/std/limits (numeric_limits<__float128>): Define.
4714         * testsuite/18_support/numeric_limits/128bit.cc: New test.
4715
4716 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4717
4718         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
4719         msp430 to all 16-bit targets.
4720         * configure: Regenerate.
4721
4722 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4723
4724         PR libstdc++/109921
4725         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
4726         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
4727         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
4728         binary64.
4729         (from_chars(const char*, const char*, double&, chars_format)):
4730         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
4731         (from_chars(const char*, const char*, _Float128&, chars_format))
4732         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
4733         defined, otherwise parse a long double and convert to _Float128.
4734
4735 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4736
4737         PR libstdc++/109922
4738         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
4739         Add deprecated attribute to non-standard overload.
4740         * doc/xml/manual/evolution.xml: Document deprecation.
4741         * doc/html/*: Regenerate.
4742         * testsuite/27_io/manipulators/standard/char/1.cc: Add
4743         dg-warning for expected deprecated warning.
4744         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
4745         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
4746         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
4747
4748 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
4749
4750         * testsuite/20_util/from_chars/4.cc: Skip long double test06
4751         on x86_64-vxworks.
4752         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
4753         x86_64-vxworks.
4754
4755 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
4756
4757         PR libstdc++/109822
4758         * include/experimental/bits/simd.h (to_native): Use int NTTP
4759         as specified in PTS2.
4760         (to_compatible): Likewise. Add missing tag to call mask
4761         generator ctor.
4762         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
4763         test.
4764
4765 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
4766
4767         * testsuite/experimental/simd/tests/integer_operators.cc:
4768         Compute expected value differently to avoid getting turned into
4769         a vector shift.
4770
4771 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
4772
4773         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
4774         double <-> (u)long conversion tests conditional on sizeof(long
4775         double) and sizeof(long).
4776
4777 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
4778
4779         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
4780         Negative __y is UB, so prefer signed compare.
4781
4782 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
4783
4784         * testsuite/util/testsuite_allocator.h (PointerBase): Add
4785         relational operators.
4786
4787 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
4788
4789         * testsuite/20_util/to_chars/long_double.cc: Expect execution
4790         fail on x86-vxworks.
4791
4792 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
4793
4794         PR libstdc++/109949
4795         * include/experimental/bits/simd.h (__intrinsic_type): If
4796         __ALTIVEC__ is defined, map gnu::vector_size types to their
4797         corresponding __vector T types without losing unsignedness of
4798         integer types. Also prefer long long over long.
4799         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
4800         object to the expected unsigned vector type.
4801
4802 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
4803
4804         PR libstdc++/109261
4805         * include/experimental/bits/simd.h (__intrinsic_type):
4806         Specialize __intrinsic_type<double, 8> and
4807         __intrinsic_type<double, 16> in any case, but provide the member
4808         type only with __aarch64__.
4809
4810 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
4811
4812         PR libstdc++/109261
4813         * include/experimental/bits/simd_neon.h (_S_reduce): Add
4814         constexpr and make NEON implementation conditional on
4815         not __builtin_is_constant_evaluated.
4816
4817 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
4818
4819         PR libstdc++/109261
4820         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
4821         Avoid vector builtin subscripting in constant expressions.
4822         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
4823         (const_where_expression, where_expression, where)
4824         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
4825         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
4826         internal APIs).
4827         * include/experimental/bits/simd_builtin.h (__vector_permute)
4828         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
4829         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
4830         (_MaskImplBuiltin::_S_store): Add constexpr.
4831         (_CommonImplBuiltin::_S_store_bool_array)
4832         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
4833         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
4834         constant_evaluated case.
4835         * include/experimental/bits/simd_fixed_size.h
4836         (_S_masked_load): Reword comment.
4837         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
4838         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
4839         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
4840         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
4841         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
4842         constexpr.
4843         (_SimdTuple::operator[], _M_set): Add constexpr and add
4844         constant_evaluated case.
4845         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
4846         * include/experimental/bits/simd_scalar.h: Add constexpr.
4847         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
4848         constexpr and add constant_evaluated case.
4849         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
4850         (_S_less_equal): Value-initialize to satisfy constexpr
4851         evaluation.
4852         (_MaskImplX86::_S_load): Add constant_evaluated case.
4853         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
4854         case. Value-initialize local variables.
4855         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
4856         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
4857         case.
4858         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
4859         test.
4860
4861 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
4862
4863         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
4864         __infn into #ifdef'ed block.
4865         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
4866         constants only when used.
4867         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
4868         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
4869         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
4870         Likewise.
4871         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
4872         Move totest and expect1 into #ifdef'ed block.
4873
4874 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
4875
4876         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
4877         * doc/html/manual/strings.html: Regenerate.
4878
4879 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
4880
4881         PR libstdc++/109883
4882         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
4883
4884 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
4885
4886         PR libstdc++/109883
4887         * include/c_global/cmath (atan2, fmod, pow): Move
4888         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
4889         __gnu_cxx::__bfloat16_t overloads.
4890         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
4891         Likewise.
4892         (fma): Move __gnu_cxx::__promote_3 using template after
4893         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
4894
4895 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4896
4897         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
4898         checks for float_round_style and float_denorm_style.
4899
4900 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4901
4902         * include/bits/c++config: Add system_header pragma.
4903
4904 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4905
4906         * include/std/expected (expected::and_then, expected::or_else)
4907         (expected::transform, expected::transform_error): Fix exception
4908         specifications as per LWG 3877.
4909         (expected<void, E>::and_then, expected<void, E>::transform):
4910         Likewise.
4911         * testsuite/20_util/expected/lwg3877.cc: New test.
4912
4913 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
4914
4915         * include/std/type_traits: Use __bool_constant instead of
4916         integral_constant.
4917
4918 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4919
4920         * configure: Regenerate.
4921
4922 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4923
4924         PR libstdc++/109741
4925         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
4926         * config.h.in: Regenerate.
4927         * configure: Regenerate.
4928         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
4929         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
4930         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
4931         instead of hardcoded 64.
4932
4933 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4934
4935         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
4936         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
4937         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
4938         * config.h.in: Regenerate.
4939         * configure: Regenerate.
4940         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
4941         instead of _GLIBCXX_USE_C99_FENV_TR1.
4942         * include/c_global/cfenv: Likewise.
4943         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
4944         of _GLIBCXX_USE_C99_CTYPE_TR1.
4945
4946 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4947
4948         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
4949         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
4950         <inttypes.h> features in C++11 mode and define
4951         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
4952         * config.h.in: Regenerate.
4953         * configure: Regenerate.
4954         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
4955         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
4956         of _GLIBCXX_USE_C99_STDINT_TR1.
4957         * include/c_compatibility/inttypes.h: Check
4958         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
4959         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
4960         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
4961         * include/c_compatibility/stdatomic.h: Check
4962         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
4963         * include/c_compatibility/stdint.h: Likewise.
4964         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
4965         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
4966         _GLIBCXX_USE_C99_INTTYPES_TR1 and
4967         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
4968         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
4969         instead of _GLIBCXX_USE_C99_STDINT_TR1.
4970         * include/std/atomic: Likewise.
4971         * src/c++11/cow-stdexcept.cc: Likewise.
4972         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
4973         Likewise.
4974         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
4975         Likewise.
4976
4977 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4978
4979         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
4980         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
4981         * config.h.in: Regenerate.
4982         * configure: Regenerate.
4983         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
4984         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
4985         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
4986
4987 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4988
4989         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
4990         assertion to ensure expected exception is throw.
4991
4992 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4993
4994         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
4995         printer for chrono::zoned_time for cx11 ABI and tzdb effective
4996         target.
4997
4998 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4999
5000         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
5001         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
5002         * configure: Regenerate.
5003
5004 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5005
5006         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
5007         to check for nan, nanf, and nanl.
5008         * configure: Regenerate.
5009
5010 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5011
5012         * include/bits/char_traits.h (char_traits<char16_t>): Do not
5013         depend on _GLIBCXX_USE_C99_STDINT_TR1.
5014         (char_traits<char32_t>): Likewise.
5015         * include/experimental/source_location: Likewise.
5016
5017 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5018
5019         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
5020         (atomic_int_least16_t, atomic_uint_least16_t)
5021         (atomic_int_least32_t, atomic_uint_least32_t)
5022         (atomic_int_least64_t, atomic_uint_least64_t)
5023         (atomic_int_fast16_t, atomic_uint_fast16_t)
5024         (atomic_int_fast32_t, atomic_uint_fast32_t)
5025         (atomic_int_fast64_t, atomic_uint_fast64_t)
5026         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
5027         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
5028
5029 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5030
5031         * include/bits/algorithmfwd.h (shuffle): Do not depend on
5032         _GLIBCXX_USE_C99_STDINT_TR1.
5033         * include/bits/ranges_algo.h (shuffle): Likewise.
5034         * include/bits/stl_algo.h (shuffle): Likewise.
5035         * include/ext/random: Likewise.
5036         * include/ext/throw_allocator.h (random_condition): Likewise.
5037         * include/std/random: Likewise.
5038         * src/c++11/cow-string-inst.cc: Likewise.
5039         * src/c++11/random.cc: Likewise.
5040
5041 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5042
5043         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
5044         _GLIBCXX_USE_C99_STDINT_TR1.
5045
5046 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5047
5048         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
5049         on _GLIBCXX_USE_C99_STDINT_TR1.
5050
5051 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5052
5053         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
5054         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
5055         * testsuite/experimental/string_view/typedefs.cc: Likewise.
5056
5057 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5058
5059         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
5060         (auto_locale, auto_ferounding): New class types.
5061         (from_chars_impl): Use auto_locale and auto_ferounding.
5062
5063 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5064
5065         PR libstdc++/109772
5066         * include/std/chrono (hh_mm_ss::__fits): Remove variable
5067         template.
5068         (hh_mm_ss::__subseconds): Remove __fits from constraints.
5069         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
5070         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
5071         hh_mm_ss<duration<int, std::pico>>.
5072
5073 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5074
5075         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
5076         * include/bits/basic_ios.h: Add static assertion checking
5077         traits_type::value_type.
5078         * include/bits/basic_string.h: Likewise. Do not rebind
5079         allocator, and add static assertion checking its value_type.
5080         (basic_string::_Alloc_traits_impl): Remove class template.
5081         (basic_string::_S_allocate): New static member function.
5082         (basic_string::assign): Use _S_allocate.
5083         * include/bits/basic_string.tcc (basic_string::_M_create)
5084         (basic_string::reserve, basic_string::_M_replace): Likewise.
5085         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
5086         Disable for C++20 and later.
5087         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
5088         Likweise.
5089
5090 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5091
5092         PR libstdc++/109758
5093         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
5094         and negative zero correctly.
5095         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
5096
5097 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
5098
5099         * include/bits/hashtable_policy.h
5100         (_NodeBuilder<>::_S_build): Use __node_ptr.
5101         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
5102         (_AllocNode<>): Likewise.
5103         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
5104         to call std::is_permutation in the non-unique key implementation.
5105         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
5106         _M_begin() once.
5107         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
5108         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
5109         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
5110         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
5111         const_iterator.
5112         (_Hashtable<>::find): Likewise.
5113         (_Hashtable<>::_M_emplace): Likewise.
5114         (_Hashtable<>::_M_insert_unique): Likewise.
5115
5116 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
5117
5118         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
5119         Print floating-point durations correctly.
5120         (StdChronoTimePointPrinter): Support printing only the value,
5121         not the type name. Uncomment handling for known clocks.
5122         (StdChronoZonedTimePrinter): Remove type names from output.
5123         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
5124         (StdChronoTimeZonePrinter): Add equals sign to output.
5125         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
5126
5127 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
5128
5129         * testsuite/20_util/from_chars/4.cc: Skip long double test06
5130         on aarch64-vxworks.
5131         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
5132         aarch64-vxworks.
5133
5134 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
5135
5136         * doc/xml/manual/abi.xml (abi.versioning.history): Document
5137         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
5138         * doc/html/manual/abi.html: Regenerate.
5139
5140 2023-05-04  Florian Weimer  <fweimer@redhat.com>
5141
5142         * doc/xml/manual/abi.xml (abi.versioning.history): Add
5143         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
5144         libgcc_s.
5145
5146 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
5147
5148         * src/c++17/floating_from_chars.cc
5149         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
5150         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
5151         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
5152         _ZSt8to_charsPcS_u9__ieee128.
5153         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
5154         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
5155         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
5156         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
5157         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
5158
5159 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
5160
5161         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
5162         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
5163         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
5164         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
5165         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
5166         versions.
5167         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
5168         file.
5169
5170 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
5171             Jonathan Wakely  <jwakely@redhat.com>
5172
5173         PR libstdc++/109703
5174         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
5175         Initialize _M_string_length.
5176
5177 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
5178
5179         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
5180         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
5181         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
5182         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
5183         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
5184         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
5185         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
5186         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
5187
5188 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
5189
5190         PR libstdc++/109694
5191         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
5192         -Wattribute-alias.
5193
5194 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5195
5196         * include/bits/random.h (gamma_distribution): Add to the right
5197         doxygen group.
5198         (discrete_distribution, piecewise_constant_distribution)
5199         (piecewise_linear_distribution): Create a new doxygen group and
5200         fix the incomplete doxygen comments.
5201         * include/bits/uniform_int_dist.h (uniform_int_distribution):
5202         Add to doxygen group.
5203
5204 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5205
5206         * include/bits/uses_allocator.h: Add missing @file comment.
5207         * include/bits/regex.tcc: Remove stray doxygen comments.
5208         * include/experimental/memory_resource: Likewise.
5209         * include/std/bit: Tweak doxygen @cond comments.
5210         * include/std/expected: Likewise.
5211         * include/std/numbers: Likewise.
5212
5213 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5214
5215         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
5216         from header paths.
5217
5218 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5219
5220         * include/bits/move.h: Simplify opening/closing namespace std.
5221
5222 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
5223
5224         PR libstdc++/108969
5225         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
5226         _ZSt21ios_base_library_initv.
5227         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
5228         symver and make it the latestp.
5229         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
5230         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
5231         * include/std/iostream: If init_priority attribute is supported
5232         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
5233         symbol into the object.
5234         * configure: Regenerated.
5235
5236 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5237
5238         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
5239         * include/std/format: Likewise.
5240
5241 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5242
5243         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
5244         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
5245
5246 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5247
5248         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
5249         HTML docs.
5250         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
5251         from doxygen docs.
5252         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
5253         Likewise.
5254         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
5255         Likewise.
5256         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
5257         Likewise.
5258         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
5259         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
5260         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
5261         (_DEFINE_BINARY_OPERATOR): Likewise.
5262
5263 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5264
5265         * include/bits/memory_resource.h: Improve doxygen comments.
5266         * include/std/memory_resource: Likewise.
5267
5268 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5269
5270         PR libstdc++/40380
5271         * include/bits/basic_string.h: Improve doxygen comments.
5272         * include/bits/cow_string.h: Likewise.
5273         * include/bits/forward_list.h: Likewise.
5274         * include/bits/fs_dir.h: Likewise.
5275         * include/bits/fs_path.h: Likewise.
5276         * include/bits/quoted_string.h: Likewise.
5277         * include/bits/stl_bvector.h: Likewise.
5278         * include/bits/stl_map.h: Likewise.
5279         * include/bits/stl_multimap.h: Likewise.
5280         * include/bits/stl_multiset.h: Likewise.
5281         * include/bits/stl_set.h: Likewise.
5282         * include/bits/stl_vector.h: Likewise.
5283         * include/bits/unordered_map.h: Likewise.
5284         * include/bits/unordered_set.h: Likewise.
5285         * include/std/filesystem: Likewise.
5286         * include/std/iomanip: Likewise.
5287
5288 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5289
5290         PR libstdc++/105081
5291         * src/c++11/random.cc (__throw_syserr): New function.
5292         (random_device::_M_init, random_device::_M_init_pretr1): Use new
5293         function for bad tokens.
5294         (random_device::_M_getval): Use new function for read errors.
5295         * testsuite/util/testsuite_random.h (random_device_available):
5296         Change catch handler to use std::system_error.
5297
5298 2023-04-24  Patrick Palka  <ppalka@redhat.com>
5299
5300         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
5301         Fix propagation of sign bit.
5302         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
5303         non-standard 'signed typedef-name'.  Add some compile-time tests
5304         for right-shifting a negative __max_diff_type value by more than
5305         one.
5306
5307 2023-04-19  Patrick Palka  <ppalka@redhat.com>
5308             Jonathan Wakely  <jwakely@redhat.com>
5309
5310         PR c++/100157
5311         * include/bits/utility.h (_Nth_type): Conditionally define in
5312         terms of __type_pack_element if available.
5313         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
5314         additional errors from the new built-in.
5315
5316 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
5317
5318         Revert:
5319         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5320
5321         PR libstdc++/108969
5322         * src/Makefile.am: Move globals_io.cc to here.
5323         * src/Makefile.in: Regenerate.
5324         * src/c++98/Makefile.am: Remove globals_io.cc from here.
5325         * src/c++98/Makefile.in: Regenerate.
5326         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
5327         symbol name and then export with GLIBCXX_3.4.31 symver.
5328         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
5329         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
5330         Regenerate.
5331         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
5332         Regenerate.
5333         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
5334         Regenerate.
5335         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
5336         Regenerate.
5337         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
5338         Regenerate.
5339         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
5340         Regenerate.
5341         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
5342         Regenerate.
5343         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
5344         Regenerate.
5345         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
5346
5347 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
5348
5349         Revert:
5350         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5351
5352         PR libstdc++/108969
5353         * config/abi/pre/gnu.ver: Fix preprocessor condition.
5354
5355 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5356
5357         * doc/xml/manual/extensions.xml: Fix example to declare and
5358         qualify std::free, and use NULL instead of 0.
5359         * doc/html/manual/ext_demangling.html: Regenerate.
5360         * libsupc++/cxxabi.h: Adjust doxygen comments.
5361
5362 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5363
5364         PR libstdc++/108969
5365         * config/abi/pre/gnu.ver: Fix preprocessor condition.
5366
5367 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5368
5369         PR libstdc++/108969
5370         * src/Makefile.am: Move globals_io.cc to here.
5371         * src/Makefile.in: Regenerate.
5372         * src/c++98/Makefile.am: Remove globals_io.cc from here.
5373         * src/c++98/Makefile.in: Regenerate.
5374         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
5375         symbol name and then export with GLIBCXX_3.4.31 symver.
5376         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
5377         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
5378         Regenerate.
5379         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
5380         Regenerate.
5381         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
5382         Regenerate.
5383         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
5384         Regenerate.
5385         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
5386         Regenerate.
5387         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
5388         Regenerate.
5389         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
5390         Regenerate.
5391         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
5392         Regenerate.
5393         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
5394
5395 2023-04-18  Patrick Palka  <ppalka@redhat.com>
5396
5397         PR libstdc++/108827
5398         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
5399         for C++23.
5400         * include/std/ranges (range_adaptor_closure): Define for C++23.
5401         * include/std/version (__cpp_lib_ranges): Bump value for
5402         C++23.
5403         * testsuite/std/ranges/version_c++23.cc: Bump expected value
5404         of __cpp_lib_ranges.
5405         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
5406
5407 2023-04-18  Patrick Palka  <ppalka@redhat.com>
5408
5409         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
5410         Define for C++23.
5411         (__cpp_lib_ranges_iota): Likewise.
5412         (__cpp_lib_ranges_find_last): Likewise.
5413         (__cpp_lib_fold): Rename to ...
5414         (__cpp_lib_ranges_fold): ... this.
5415         * include/std/version: As above.
5416         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
5417         renaming __cpp_lib_fold.
5418         * testsuite/std/ranges/version_c++23.cc: Verify values
5419         of the above feature-test macros.
5420
5421 2023-04-18  Patrick Palka  <ppalka@redhat.com>
5422
5423         PR libstdc++/109525
5424         * include/std/ranges (views::_AsConst::operator()): Add
5425         missing const to constant_range test.
5426         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
5427         Improve formatting.  Adjust expected type of v2.
5428         (test03): New test.
5429
5430 2023-04-14  Patrick Palka  <ppalka@redhat.com>
5431
5432         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
5433         (const_sentinel_t): Likewise.
5434         (range_const_reference_t): Likewise.
5435         (constant_range): Likewise.
5436         (__cust_access::__possibly_const_range): Likewise, replacing ...
5437         (__cust_access::__as_const): ... this.
5438         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
5439         (__cust_access::_CEnd::operator()): Likewise.
5440         (__cust_access::_CRBegin::operator()): Likewise.
5441         (__cust_access::_CREnd::operator()): Likewise.
5442         (__cust_access::_CData::operator()): Likewise.
5443         * include/bits/ranges_util.h (ranges::__detail::__different_from):
5444         Make it an alias of std::__detail::__different_from.
5445         (view_interface::cbegin): Define for C++23.
5446         (view_interface::cend): Likewise.
5447         * include/bits/stl_iterator.h (__detail::__different_from): Define.
5448         (iter_const_reference_t): Define for C++23.
5449         (__detail::__constant_iterator): Likewise.
5450         (__detail::__is_const_iterator): Likewise.
5451         (__detail::__not_a_const_iterator): Likewise.
5452         (__detail::__iter_const_rvalue_reference_t): Likewise.
5453         (__detail::__basic_const_iter_cat):: Likewise.
5454         (const_iterator): Likewise.
5455         (__detail::__const_sentinel): Likewise.
5456         (const_sentinel): Likewise.
5457         (basic_const_iterator): Likewise.
5458         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
5459         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
5460         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
5461         Likewise.
5462         (make_const_iterator): Define for C++23.
5463         (make_const_sentinel): Likewise.
5464         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
5465         (as_const_view): Likewise.
5466         (enable_borrowed_range<as_const_view>): Likewise.
5467         (views::__detail::__is_ref_view): Likewise.
5468         (views::__detail::__can_is_const_view): Likewise.
5469         (views::_AsConst, views::as_const): Likewise.
5470         * include/std/span (span::const_iterator): Likewise.
5471         (span::const_reverse_iterator): Likewise.
5472         (span::cbegin): Likewise.
5473         (span::cend): Likewise.
5474         (span::crbegin): Likewise.
5475         (span::crend): Likewise.
5476         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
5477         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
5478         behave independently of C++20 vs C++23.
5479         * testsuite/std/ranges/version_c++23.cc: Verify value of
5480         __cpp_lib_ranges_as_const macro.
5481         * testsuite/24_iterators/const_iterator/1.cc: New test.
5482         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
5483
5484 2023-04-14  Patrick Palka  <ppalka@redhat.com>
5485
5486         * include/bits/ranges_base.h (__cust_access::__as_const)
5487         (__cust_access::_CBegin, __cust::cbegin)
5488         (__cust_access::_CEnd, __cust::cend)
5489         (__cust_access::_CRBegin, __cust::crbegin)
5490         (__cust_access::_CREnd, __cust::crend)
5491         (__cust_access::_CData, __cust::cdata): Move down definitions to
5492         shortly after the definition of input_range.
5493
5494 2023-04-14  Patrick Palka  <ppalka@redhat.com>
5495
5496         * include/bits/ranges_algo.h: Include <optional> for C++23.
5497         (__cpp_lib_fold): Define for C++23.
5498         (in_value_result): Likewise.
5499         (__detail::__flipped): Likewise.
5500         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
5501         (__detail::__indirectly_binary_left_foldable): Likewise.
5502         (___detail:__indirectly_binary_right_foldable): Likewise.
5503         (fold_left_with_iter_result): Likewise.
5504         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
5505         (__fold_left_fn, fold_left): Likewise.
5506         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
5507         Likewise.
5508         (__fold_left_first_fn, fold_left_first): Likewise.
5509         (__fold_right_fn, fold_right): Likewise.
5510         (__fold_right_last_fn, fold_right_last): Likewise.
5511         * include/std/version (__cpp_lib_fold): Likewise.
5512         * testsuite/25_algorithms/fold_left/1.cc: New test.
5513         * testsuite/25_algorithms/fold_right/1.cc: New test.
5514
5515 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
5516
5517         * include/std/format (formatter): Add comment to deleted default
5518         constructor of primary template.
5519         (_Checking_scanner): Add static_assert.
5520
5521 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5522
5523         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
5524         * doc/html/*: Regenerate.
5525
5526 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5527
5528         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
5529         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
5530         namespace to avoid clashing with libc struct.
5531         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
5532         Likewise.
5533         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
5534         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
5535         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
5536         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
5537         * testsuite/experimental/synchronized_value.cc: Require gthreads
5538         and add missing option for pthreads targets.
5539
5540 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5541
5542         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
5543         for C++23.
5544         (__detail::__range_with_movable_reference): Likewise.
5545         (enumerate_view): Likewise.
5546         (enumerate_view::_Iterator): Likewise.
5547         (enumerate_view::_Sentinel): Likewise.
5548         (views::__detail::__can_enumerate_view): Likewise.
5549         (views::_Enumerate, views::enumerate): Likewise.
5550         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
5551         * testsuite/std/ranges/version_c++23.cc: Verify value of
5552         __cpp_lib_ranges_enumerate.
5553         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
5554
5555 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5556
5557         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
5558         Propagate _M_trailing_empty in the const-converting constructor
5559         as per LWG 3904.
5560         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
5561         assertion.
5562         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
5563
5564 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5565
5566         * src/c++17/floating_from_chars.cc: Include <algorithm>,
5567         <iterator>, <limits> and <cstdint>.
5568
5569 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5570
5571         PR libstdc++/108291
5572         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
5573         parameter types of the lambda wrapper passed to adjacent_find.
5574         (chunk_by_view::_M_find_prev): Likewise.
5575         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
5576         New tests.
5577
5578 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5579
5580         PR libstdc++/109482
5581         * include/experimental/internet (basic_endpoint::basic_endpoint()):
5582         Ensure that the required union members are active. Only define
5583         as constexpr for C++20 and later.
5584         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
5585         Likewise.
5586         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
5587         check constexpr default constructor for C++20 and later.
5588         * testsuite/experimental/net/internet/endpoint/extensible.cc:
5589         Likewise.
5590
5591 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5592
5593         * src/c++20/tzdata.zi: Import new file from 2023c release.
5594
5595 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5596
5597         * include/precompiled/stdc++.h (C++17): Don't double-include
5598         <charconv>, once with wrong conditions.
5599         * testsuite/18_support/96817.cc: Require hosted.
5600         * testsuite/18_support/bad_exception/59392.cc: Ditto.
5601         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
5602         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
5603         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
5604         Ditto.
5605
5606 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5607
5608         * include/bits/c++config: When __STDC_HOSTED__ is zero,
5609         disable _GLIBCXX_DEBUG and, if it was set, enable
5610         _GLIBCXX_ASSERTIONS.
5611         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
5612         Include <bits/c++config.h> when determining whether debug is
5613         set, in order to inherit the logic from above
5614
5615 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5616
5617         * testsuite/17_intro/versionconflict.cc: New test.
5618         * include/std/version: Allow disabling the system_header pragma
5619         via _GLIBCXX_TESTING_SYSHDR.
5620
5621 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5622
5623         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
5624         Synchronize the definition block with...
5625         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
5626         ... this one here.  Also define the 202202L value, rather than
5627         leaving it up to purely unique_ptr.h, so that the value is
5628         synchronized across all headers.
5629         (__gnu_debug::_Safe_iterator_base): Move into new conditional
5630         block.
5631         * include/std/memory (__cpp_lib_atomic_value_initialization):
5632         Define on freestanding under the same conditions as in
5633         atomic_base.h.
5634         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
5635         Also define on freestanding.
5636         (__cpp_lib_to_chars): Ditto.
5637         (__cpp_lib_gcd): Ditto.
5638         (__cpp_lib_gcd_lcm): Ditto.
5639         (__cpp_lib_raw_memory_algorithms): Ditto.
5640         (__cpp_lib_array_constexpr): Ditto.
5641         (__cpp_lib_nonmember_container_access): Ditto.
5642         (__cpp_lib_clamp): Ditto.
5643         (__cpp_lib_constexpr_char_traits): Ditto.
5644         (__cpp_lib_constexpr_string): Ditto.
5645         (__cpp_lib_sample): Ditto.
5646         (__cpp_lib_lcm): Ditto.
5647         (__cpp_lib_constexpr_iterator): Ditto.
5648         (__cpp_lib_constexpr_char_traits): Ditto.
5649         (__cpp_lib_interpolate): Ditto.
5650         (__cpp_lib_constexpr_utility): Ditto.
5651         (__cpp_lib_shift): Ditto.
5652         (__cpp_lib_ranges): Ditto.
5653         (__cpp_lib_move_iterator_concept): Ditto.
5654         (__cpp_lib_constexpr_numeric): Ditto.
5655         (__cpp_lib_constexpr_functional): Ditto.
5656         (__cpp_lib_constexpr_algorithms): Ditto.
5657         (__cpp_lib_constexpr_tuple): Ditto.
5658         (__cpp_lib_constexpr_memory): Ditto.
5659
5660 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
5661
5662         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
5663         timeout factor on hppa*-*-*.
5664
5665 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
5666
5667         * include/bits/regex.h (sub_match::swap): New function.
5668         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
5669
5670 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
5671
5672         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
5673         example program.
5674         * doc/html/manual/ext_demangling.html: Regenerate.
5675
5676 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
5677
5678         PR tree-optimization/107087
5679         * include/bits/cow_string.h (basic_string::size()): Add
5680         optimizer hint that _S_empty_rep()._M_length is always zero.
5681         (basic_string::length()): Call size().
5682
5683 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
5684
5685         PR libstdc++/109339
5686         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
5687         Add attribute access with access-mode 'none'.
5688         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
5689
5690 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
5691
5692         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
5693         Revert change from member function to data member. Fix for
5694         constant evaluation by detecting which union member is active.
5695         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
5696         flag.
5697
5698 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5699
5700         PR libstdc++/109242
5701         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
5702         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
5703
5704 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5705
5706         * include/experimental/internet (ip::make_address): Implement
5707         missing overload.
5708         (ip::address_v4::broadcast()): Avoid undefined shift.
5709         (ip::basic_endpoint): Fix member functions for constexpr.
5710         (ip::basic_endpoint::_M_is_v6): Replace member function with
5711         data member, adjust member functions using it.
5712         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
5713         content.
5714         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
5715         constexpr checks to work in C++14.
5716         * testsuite/experimental/net/internet/address/v4/creation.cc:
5717         Likewise.
5718         * testsuite/experimental/net/internet/endpoint/cons.cc:
5719         Likewise.
5720         * testsuite/experimental/net/internet/network/v4/cons.cc:
5721         Likewise.
5722         * testsuite/experimental/net/internet/network/v4/members.cc:
5723         Likewise.
5724         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
5725
5726 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5727
5728         * include/std/expected (expected::value() &): Use const lvalue
5729         for unex member passed to bad_expected_access constructor, as
5730         per LWG 3843.
5731
5732 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5733
5734         PR libstdc++/109340
5735         * include/std/expected (expected::transform): Use
5736         std::remove_cv_t instead of std::remove_cvref_t.
5737         (expected::transform_error): Likewise.
5738         (expected<cv void, E>::transform): Likewise.
5739         (expected<cv void, E>::transform_error): Likewise.
5740         * include/std/optional (transform): Use std::remove_cv_t.
5741         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
5742
5743 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5744
5745         * include/std/optional (optional): Adjust static assertion to
5746         reject arrays and functions as well as references.
5747         * testsuite/20_util/optional/requirements_neg.cc: New test.
5748
5749 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5750
5751         PR libstdc++/103387
5752         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
5753         std::use_facet instead of cached _M_num_get facet.
5754         (istream::operator>>(short&)): Likewise.
5755         (istream::operator>>(int&)): Likewise.
5756         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
5757         std::use_facet instead of cached _M_num_put facet.
5758
5759 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5760
5761         * include/bits/char_traits.h (char_traits::copy): Return without
5762         using memcpy if n==0.
5763         (char_traits::assign): Likewise for memset.
5764
5765 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5766
5767         PR libstdc++/109299
5768         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
5769         hint for compiler that local strings fit in the local buffer.
5770
5771 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5772
5773         PR libstdc++/109288
5774         * include/std/chrono (__detail::__get_leap_second_info): Update
5775         expiry date of hardcoded leapseconds list.
5776         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
5777         Likewise.
5778         * src/c++20/tzdata.zi: Import new file from 2023a release.
5779         * testsuite/std/time/time_zone/get_info_local.cc: Only check
5780         transitions for Egypt up to 2014.
5781
5782 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
5783
5784         * include/experimental/bits/simd.h (is_simd_flag_type): New.
5785         (_IsSimdFlagType): New.
5786         (copy_from, copy_to, load ctors): Constrain _Flags using
5787         _IsSimdFlagType.
5788
5789 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
5790
5791         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
5792         _Base::_S_divides if the optimized _S_divides function is hidden
5793         via the preprocessor.
5794
5795 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
5796
5797         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
5798         warning if size_t is not unsigned long.
5799
5800 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5801
5802         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
5803         Add overload, as per LWG 3893.
5804         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
5805         Check assignment from nullptr.
5806
5807 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5808
5809         * include/std/format (formatter<const charT[N], charT>): Do not
5810         define partial speclialization, as per LWG 3833.
5811         * testsuite/std/format/formatter/requirements.cc: Check it.
5812
5813 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5814
5815         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
5816         as per LWG 3792.
5817         * testsuite/20_util/exchange/constexpr.cc: Check for it.
5818
5819 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5820
5821         * include/std/version (__cpp_lib_format): Define.
5822         * testsuite/std/format/functions/format.cc: Check it.
5823
5824 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5825
5826         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
5827         Pass rvalues to the callback, as now allowed by LWG 3645.
5828         Enforce preconditions on the return value.
5829         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
5830         Adjust.
5831
5832 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5833
5834         * include/std/format: Add a comment noting that the resolution
5835         of LWG 3720 has been applied..
5836
5837 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5838
5839         * include/bits/regex.h (match_results): Add allocator-extended
5840         copy and move constructors, as per LWG 2195.
5841         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
5842
5843 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5844
5845         * include/bits/stream_iterator.h (istream_iterator): Add
5846         constexpr to copy constructor, as per LWG 3600.
5847         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
5848         Check copy construction.
5849
5850 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5851
5852         * include/experimental/bits/simd_x86.h
5853         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
5854         with __RECIPROCAL_MATH__.
5855
5856 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5857
5858         * include/experimental/bits/simd_detail.h: Don't define
5859         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
5860         * include/experimental/bits/simd_x86.h (_S_divides): Remove
5861         check for __clang__.
5862
5863 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5864
5865         * include/experimental/bits/simd_detail.h: Don't declare the
5866         simd API as constexpr with Clang.
5867         * include/experimental/bits/simd_x86.h (__movm): New.
5868         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
5869         and ?:.
5870         (_SimdImplX86::_S_masked_unary): Clang does not implement the
5871         same builtins. Implement the function using __movm, ?:, and -
5872         operators on vector_size types instead.
5873
5874 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5875
5876         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
5877         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
5878
5879 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
5880
5881         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
5882         formatting.
5883
5884 2023-03-20  Marek Polacek  <polacek@redhat.com>
5885
5886         PR c++/109159
5887         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
5888         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
5889         * testsuite/23_containers/span/explicit.cc: Likewise.
5890
5891 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
5892
5893         PR libstdc++/109182
5894         * include/std/expected (expected<void>::expected(in_place_t)):
5895         Remove template-head.
5896
5897 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
5898
5899         PR libstdc++/109165
5900         * testsuite/18_support/coroutines/hash.cc: Use const object
5901         in second call.
5902
5903 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
5904
5905         PR libstdc++/109165
5906         * include/std/coroutine (hash<>::operator()): Add const.
5907         * testsuite/18_support/coroutines/hash.cc: New test.
5908
5909 2023-03-14  Patrick Palka  <ppalka@redhat.com>
5910
5911         PR libstdc++/109111
5912         * include/std/ranges (repeat_view): Remove redundant parentheses
5913         in requires-clause.
5914         (repeat_view::_Iterator): Correct the requires-clause.
5915
5916 2023-03-14  Patrick Palka  <ppalka@redhat.com>
5917
5918         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
5919         Define.
5920         (__cpp_lib_move_iterator_concept): Define for C++20.
5921         (move_iterator::iterator_concept): Strengthen as per P2520R0.
5922         * include/std/version (__cpp_lib_move_iterator_concept): Define
5923         for C++20.
5924         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
5925
5926 2023-03-14  Patrick Palka  <ppalka@redhat.com>
5927
5928         * include/bits/ranges_util.h (view_interface::empty): Add
5929         preferred overloads that use ranges::size when the range is
5930         sized as per LWG 3715.
5931         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
5932
5933 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
5934
5935         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
5936         Only define for C++17 and later.
5937
5938 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
5939
5940         * src/Makefile.am: Add comment about linker script fragments.
5941         * src/Makefile.in: Regenerate.
5942
5943 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
5944
5945         PR libstdc++/62196
5946         * include/bits/mask_array.h (mask_array): Add assertions to
5947         assignment operators.
5948         * include/std/valarray (valarray::operator[](valarray<bool>)):
5949         Add assertions.
5950         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
5951         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
5952         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
5953         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
5954         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
5955         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
5956         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
5957         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
5958         * testsuite/26_numerics/valarray/mask.cc: New test.
5959
5960 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
5961
5962         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
5963         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
5964
5965 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
5966
5967         * doc/Makefile.am: Add comment referring to documentation.
5968         * doc/Makefile.in: Regenerate.
5969
5970 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
5971
5972         * doc/html/*: Regenerate.
5973
5974 2023-03-13  Jonny Grant  <jg@jguk.org>
5975
5976         * doc/xml/faq.xml: Update copyright year.
5977
5978 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
5979
5980         * include/bits/allocator.h: Fix typo in comment.
5981
5982 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
5983
5984         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
5985         if it isn't mangled as DF16b but u6__bf16.
5986
5987 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
5988
5989         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
5990         to https.
5991         * doc/html/manual/documentation_hacking.html: Regenerate.
5992
5993 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
5994
5995         PR libstdc++/109064
5996         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
5997         Remove self-recursion in __init__. Add missing _supports.
5998         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
5999         and unique().
6000
6001 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6002
6003         * include/std/ranges
6004         (cartesian_product_view::_Iterator::_Iterator): Remove
6005         constraint on default constructor as per LWG 3849.
6006         (cartesian_product_view::_Iterator::_M_prev): Adjust position
6007         of _Nm > 0 test as per LWG 3820.
6008         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
6009         checking only on sized cartesian products.
6010         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
6011
6012 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6013
6014         PR libstdc++/109024
6015         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
6016         LWG 3796.
6017         (repeat_view::_M_pred): Likewise.
6018         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
6019         * testsuite/std/ranges/repeat/1.cc (test05): New test.
6020
6021 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6022
6023         PR libstdc++/108362
6024         * include/std/ranges (__detail::__can_single_view): New concept.
6025         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
6026         end of the function declarator.
6027         (__detail::__can_iota_view): New concept.
6028         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
6029         end of the function declarator.
6030         (__detail::__can_istream_view): New concept.
6031         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
6032         end of the function declarator.
6033         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
6034         * testsuite/std/ranges/istream_view.cc (test08): New test.
6035         * testsuite/std/ranges/single_view.cc (test07): New test.
6036
6037 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6038
6039         PR libstdc++/107572
6040         * include/std/ranges (cartesian_product_view::end): When
6041         building the tuple of iterators, avoid calling ranges::begin on
6042         the first range if __empty_tail is false.
6043         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
6044
6045 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
6046
6047         PR libstdc++/108882
6048         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
6049         patterns.
6050
6051 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
6052
6053         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
6054         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
6055         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
6056         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
6057         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
6058
6059 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
6060
6061         PR libstdc++/108882
6062         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
6063         not match symbols in namespace std::__gnu_cxx11_ieee128.
6064         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
6065         std::__gnu_cxx11_ieee128::money_{get,put}.
6066
6067 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
6068
6069         * libsupc++/eh_personality.cc: Fix spelling in comment.
6070
6071 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
6072
6073         * testsuite/30_threads/async/async.cc (test04): Initialize
6074         steady_start, renamed from steady_begin, next to slow_start.
6075         Increase tolerance for final wait.
6076
6077 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
6078
6079         * testsuite/libstdc++-prettyprinters/80276.cc: Add
6080         std::string to debug info.
6081         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
6082
6083 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
6084
6085         PR libstdc++/104852
6086         PR libstdc++/95989
6087         PR libstdc++/52590
6088         * include/bits/std_thread.h (thread::_M_thread_deps): New
6089         static implicitly-inline member function.
6090         (std::thread template ctor): Pass it to _M_start_thread.
6091         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
6092         parameter, force it live on entry.
6093
6094 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6095
6096         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
6097         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
6098         Likewise.
6099         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
6100         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
6101         Likewise.
6102
6103 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
6104
6105         * include/bits/cow_string.h: Fix typo in comment.
6106
6107 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
6108
6109         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
6110         current time zone cannot be determined.
6111         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
6112         HAVE_TZDB macro and test all members unconditionally.
6113
6114 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
6115
6116         PR libstdc++/108952
6117         * include/bits/uses_allocator_args.h
6118         (uses_allocator_construction_args): Implement LWG 3527.
6119         * testsuite/20_util/pair/astuple/get-2.cc: New test.
6120         * testsuite/20_util/scoped_allocator/108952.cc: New test.
6121         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
6122
6123 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
6124
6125         PR libstdc++/108846
6126         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
6127         Add __assign_one static member function.
6128         (__copy_move<true, false, RA>): Likewise.
6129         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
6130         value.
6131         (__copy_move_backward<IsMove, true, RA>): Likewise.
6132         * testsuite/25_algorithms/copy/108846.cc: New test.
6133         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
6134         * testsuite/25_algorithms/copy_n/108846.cc: New test.
6135         * testsuite/25_algorithms/move/108846.cc: New test.
6136         * testsuite/25_algorithms/move_backward/108846.cc: New test.
6137
6138 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
6139
6140         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
6141         attributes.
6142
6143 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
6144
6145         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
6146         caveat to comment.
6147         * include/bits/basic_string.h (resize_and_overwrite): Add
6148         doxygen comment.
6149
6150 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
6151
6152         * include/experimental/bits/simd.h: Line breaks and indenting
6153         fixed to follow the libstdc++ standard.
6154         * include/experimental/bits/simd_builtin.h: Likewise.
6155         * include/experimental/bits/simd_fixed_size.h: Likewise.
6156         * include/experimental/bits/simd_neon.h: Likewise.
6157         * include/experimental/bits/simd_ppc.h: Likewise.
6158         * include/experimental/bits/simd_scalar.h: Likewise.
6159         * include/experimental/bits/simd_x86.h: Likewise.
6160
6161 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
6162
6163         PR libstdc++/108030
6164         * include/experimental/bits/simd_fixed_size.h
6165         (_SimdImplFixedSize::_S_broadcast): Replace inline with
6166         _GLIBCXX_SIMD_INTRINSIC.
6167         (_SimdImplFixedSize::_S_generate): Likewise.
6168         (_SimdImplFixedSize::_S_load): Likewise.
6169         (_SimdImplFixedSize::_S_masked_load): Likewise.
6170         (_SimdImplFixedSize::_S_store): Likewise.
6171         (_SimdImplFixedSize::_S_masked_store): Likewise.
6172         (_SimdImplFixedSize::_S_min): Likewise.
6173         (_SimdImplFixedSize::_S_max): Likewise.
6174         (_SimdImplFixedSize::_S_complement): Likewise.
6175         (_SimdImplFixedSize::_S_unary_minus): Likewise.
6176         (_SimdImplFixedSize::_S_plus): Likewise.
6177         (_SimdImplFixedSize::_S_minus): Likewise.
6178         (_SimdImplFixedSize::_S_multiplies): Likewise.
6179         (_SimdImplFixedSize::_S_divides): Likewise.
6180         (_SimdImplFixedSize::_S_modulus): Likewise.
6181         (_SimdImplFixedSize::_S_bit_and): Likewise.
6182         (_SimdImplFixedSize::_S_bit_or): Likewise.
6183         (_SimdImplFixedSize::_S_bit_xor): Likewise.
6184         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
6185         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
6186         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
6187         explicit about not always-inline, yet).
6188         (_SimdImplFixedSize::_S_isinf): Likewise.
6189         (_SimdImplFixedSize::_S_isfinite): Likewise.
6190         (_SimdImplFixedSize::_S_isnan): Likewise.
6191         (_SimdImplFixedSize::_S_isnormal): Likewise.
6192         (_SimdImplFixedSize::_S_signbit): Likewise.
6193
6194 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
6195
6196         PR libstdc++/108856
6197         * include/experimental/bits/simd_builtin.h
6198         (_SimdImplBuiltin::_S_masked_unary): More efficient
6199         implementation of masked inc-/decrement for integers and floats
6200         without AVX2.
6201         * include/experimental/bits/simd_x86.h
6202         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
6203         builtins for masked inc-/decrement.
6204
6205 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6206
6207         * include/experimental/executor (executor): Constrain template
6208         constructors.
6209
6210 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6211
6212         * include/experimental/internet (basic_endpoint): Add missing
6213         constexpr to comparison operators.
6214         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
6215
6216 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6217
6218         * include/experimental/internet (network_v4::netmask()): Avoid
6219         undefined shift.
6220         (network_v4::broadcast()): Optimize and fix for targets with
6221         uint_least32_t wider than 32 bits.
6222         (network_v4::to_string(const Allocator&)): Fix for custom
6223         allocators and optimize using to_chars.
6224         (operator==(const network_v4&, const network_v4&)): Add missing
6225         constexpr.
6226         (operator==(const network_v6&, const network_v6&)): Likewise.
6227         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
6228         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
6229
6230 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6231
6232         * include/experimental/internet (address_4(const bytes_type&)):
6233         Use __builtin_bit_cast if available, otherwise convert to
6234         network byte order.
6235         (address_v4::to_bytes()): Likewise, but convert from network
6236         byte order.
6237         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
6238         incorrect tests. Check for constexpr too.
6239         * testsuite/experimental/net/internet/address/v4/creation.cc:
6240         Likewise.
6241         * testsuite/experimental/net/internet/address/v4/members.cc:
6242         Check that bytes_type is a standard-layout type.
6243
6244 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6245
6246         * include/experimental/internet (address_v4::to_string):
6247         Optimize.
6248         * testsuite/experimental/net/internet/address/v4/members.cc:
6249         Check more addresses.
6250
6251 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6252
6253         * include/ext/aligned_buffer.h (__aligned_buffer): Add
6254         diagnostic pragmas.
6255
6256 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6257
6258         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
6259         before dg-do.
6260
6261 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6262
6263         * testsuite/experimental/simd/tests/reductions.cc: Introduce
6264         max_distance as the type-dependent max error.
6265
6266 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6267
6268         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
6269         int. The actual range of these indexes is very small.
6270
6271 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6272
6273         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
6274         (_S_bit_shift_right): Declare constexpr. The implementation was
6275         already expecting constexpr evaluation.
6276
6277 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6278
6279         PR libstdc++/108030
6280         * include/experimental/bits/simd_detail.h
6281         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
6282         __clang__.
6283
6284 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6285
6286         PR libstdc++/108030
6287         * include/experimental/bits/simd.h (__vector_broadcast):
6288         Implement via __vector_broadcast_impl instead of
6289         __call_with_n_evaluations + 2 lambdas.
6290         (__vector_broadcast_impl): New.
6291
6292 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6293
6294         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
6295         Avoid destruction of the mutex pool.
6296
6297 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6298
6299         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
6300         on vxworks.
6301         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
6302         Likewise.
6303
6304 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6305
6306         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
6307         kernel mode.
6308
6309 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
6310
6311         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
6312
6313 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
6314
6315         * include/experimental/bits/simd.h (__extract_part, split):
6316         Use reserved name for template parameter.
6317
6318 2023-02-20  Andreas Schwab  <schwab@suse.de>
6319
6320         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
6321
6322 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
6323
6324         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
6325         * doc/html/faq.html: Regenerate.
6326
6327 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6328
6329         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
6330         between scalars requires the __bit_cast helper function instead
6331         of simd_bit_cast.
6332
6333 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6334
6335         * include/experimental/bits/simd_x86.h
6336         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
6337         (_SimdImplX86::_S_less_equal): Do not call
6338         __builtin_is_constant_evaluated in constexpr-if.
6339
6340 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6341
6342         * testsuite/experimental/simd/tests/bits/verify.h
6343         (verify::verify): Use %zx for size_t in format string.
6344
6345 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6346
6347         * testsuite/experimental/simd/generate_makefile.sh: Generate and
6348         pre-compile pch.h, which includes all headers that do not depend
6349         on command-line macros.
6350         * testsuite/experimental/simd/tests/bits/main.h: New file.
6351         (iterate_abis, main): Moved from verify.h.
6352         * testsuite/experimental/simd/tests/bits/verify.h
6353         (iterate_abis, main): Moved to main.h.
6354         * testsuite/experimental/simd/tests/bits/conversions.h: Add
6355         include guard.
6356         (genHalfBits): Simplify.
6357         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
6358         guard.
6359         (make_alternating_mask): Moved from mask_loadstore.
6360         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
6361         include guard.
6362         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
6363         * testsuite/experimental/simd/tests/mask_loadstore.cc
6364         (make_mask, make_alternating_mask): Removed.
6365         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
6366         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
6367         Removed.
6368         * testsuite/experimental/simd/tests/abs.cc: Only include
6369         bits/main.h.
6370         Ditto.
6371         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
6372         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
6373         * testsuite/experimental/simd/tests/casts.cc: Ditto.
6374         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
6375         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
6376         * testsuite/experimental/simd/tests/generator.cc: Ditto.
6377         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
6378         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
6379         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
6380         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
6381         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
6382         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
6383         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
6384         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
6385         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
6386         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
6387         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
6388         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
6389         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
6390         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
6391         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
6392         * testsuite/experimental/simd/tests/simd.cc: Ditto.
6393         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
6394         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
6395         * testsuite/experimental/simd/tests/splits.cc: Ditto.
6396         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
6397         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
6398         * testsuite/experimental/simd/tests/where.cc: Ditto.
6399
6400 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6401
6402         * testsuite/experimental/simd/README.md: Document the timeout
6403         and timeout-factor directives. Minor typo fixed.
6404
6405 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6406
6407         PR libstdc++/108030
6408         * include/experimental/bits/simd_detail.h: Define
6409         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
6410         * include/experimental/bits/simd.h: Annotate lambdas with
6411         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
6412         * include/experimental/bits/simd_builtin.h: Ditto.
6413         * include/experimental/bits/simd_converter.h: Ditto.
6414         * include/experimental/bits/simd_fixed_size.h: Ditto.
6415         * include/experimental/bits/simd_math.h: Ditto.
6416         * include/experimental/bits/simd_neon.h: Ditto.
6417         * include/experimental/bits/simd_x86.h: Ditto.
6418
6419 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6420
6421         * include/experimental/bits/simd.h
6422         (_SimdWrapper::_M_is_constprop_none_of)
6423         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
6424         computed result still satisfies __builtin_constant_p.
6425
6426 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6427
6428         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
6429         ellipsis character.
6430
6431 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6432
6433         * include/Makefile.am: Add new header.
6434         * include/Makefile.in: Regenerate.
6435         * include/experimental/synchronized_value: New file.
6436         * testsuite/experimental/synchronized_value.cc: New test.
6437
6438 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6439
6440         * include/experimental/optional: Fix header name in comment.
6441
6442 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6443
6444         * include/std/format (__format::_Arg_store): New class template.
6445         (basic_format_args): Remove nested type _Store and add deduction
6446         guide from _Arg_store.
6447         (basic_format_arg, make_format_args): Adjust.
6448         * testsuite/std/format/arguments/lwg3810.cc: New test.
6449
6450 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6451
6452         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
6453         constraints to constructors and add deleted overloads for the
6454         dangling cases, as per P2255R2.
6455         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
6456         make dangling cases ill-formed.
6457         * testsuite/20_util/pair/dangling_ref.cc: New test.
6458
6459 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6460
6461         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
6462
6463 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6464
6465         * include/ext/throw_allocator.h: Use reserved names for
6466         parameters.
6467
6468 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6469
6470         * testsuite/17_intro/names_pstl.cc: Add space after effective
6471         target name.
6472
6473 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6474
6475         * include/pstl/algorithm_fwd.h (__pattern_search_n)
6476         (__brick_unique_copy, __brick_adjacent_find)
6477         (__brick_generate_n, __pattern_generate_n): Use reserved names
6478         for parameters.
6479         * include/pstl/algorithm_impl.h (__brick_unique_copy)
6480         (__pattern_reverse, __brick_generate_n): Likewise.
6481         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
6482         (__prefer_parallel_tag): Likewise.
6483         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
6484         * include/pstl/glue_numeric_defs.h (adjacent_difference):
6485         Likewise.
6486         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
6487         Likewise.
6488         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
6489         * include/pstl/unseq_backend_simd.h (_Combiner)
6490         (__simd_min_element, __simd_minmax_element): Likewise.
6491         * testsuite/17_intro/names_pstl.cc: New test.
6492
6493 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6494
6495         * include/bits/fs_ops.h (create_directory): Use reserved name
6496         for parameter.
6497         * include/bits/ranges_algo.h (__contains_subrange_fn):
6498         Likewise.
6499         * include/bits/regex_automaton.h (_State_base::_M_print):
6500         Likewise.
6501         * include/bits/regex_automaton.tcc(_State_base::_M_print):
6502         Likewise.
6503         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
6504         * include/experimental/bits/fs_ops.h (create_directory):
6505         Likewise.
6506         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
6507         (recursive_timed_mutex:_M_clocklock): Likewise.
6508         * include/std/tuple (basic_common_reference): Likewise.
6509         * libsupc++/cxxabi_init_exception.h
6510         (__cxa_init_primary_exception): Likewise.
6511         * testsuite/17_intro/names.cc: Add checks.
6512
6513 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
6514
6515         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
6516         to www.open-std.org and https.
6517         * doc/html/manual/status.html: Regenerate.
6518
6519 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
6520
6521         PR libstdc++/103934
6522         * include/std/atomic (atomic_flag_wait): Add.
6523         (atomic_flag_wait_explicit): Add.
6524         (atomic_flag_notify): Add.
6525         (atomic_flag_notify_explicit): Add.
6526         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
6527         Add test case to cover missing atomic_flag free functions.
6528
6529 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
6530
6531         PR libstdc++/103934
6532         * include/std/atomic (atomic_flag_test): Add.
6533         (atomic_flag_test_explicit): Add.
6534         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
6535         test case to cover missing atomic_flag free functions.
6536         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
6537         Likewise.
6538
6539 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
6540
6541         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
6542         "The Component Object Model" reference.
6543         * doc/html/manual/policy_data_structures.html: Regenerate.
6544
6545 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
6546
6547         * doc/xml/manual/containers.xml: Tweak a link to N1780
6548         (C++ standard).
6549         * doc/html/manual/associative.html: Regenerate.
6550
6551 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
6552
6553         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
6554         * doc/html/manual/facets.html: Regenerate.
6555
6556 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
6557
6558         * doc/xml/manual/policy_data_structures_biblio.xml: Update
6559         link to "Worst-case efficient priority queues".
6560         * doc/html/manual/policy_data_structures.html: Regenerate.
6561
6562 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
6563
6564         * doc/xml/manual/using.xml: Document newly-freestanding
6565         headers and the effect of the -ffreestanding flag.
6566         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
6567         completed.
6568         * doc/xml/manual/configure.xml: Document that hosted installs
6569         respect __STDC_HOSTED__.
6570         * doc/xml/manual/test.xml: Document how to run tests in
6571         freestanding mode.
6572         * doc/html/*: Regenerate.
6573
6574 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
6575
6576         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
6577         (__find_last_if_fn): Likewise.
6578
6579 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
6580
6581         * include/std/type_traits: Add diagnostic pragmas around
6582         references to deprecated std::aligned_storage and
6583         std::aligned_union traits.
6584         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
6585         Add dg-warning for et c++23.
6586         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
6587         Likewise.
6588         * testsuite/20_util/aligned_storage/value.cc: Likewise.
6589         * testsuite/20_util/aligned_union/1.cc: Likewise.
6590         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
6591         Likewise.
6592
6593 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
6594
6595         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
6596         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
6597         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
6598         * include/std/type_traits (aligned_storage, aligned_union)
6599         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
6600         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
6601         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
6602
6603 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
6604
6605         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
6606         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
6607         consistent with other 'deprecated' macros.
6608         * include/std/type_traits (is_pod, is_pod_v): Use
6609         _GLIBCXX20_DEPRECATED_SUGGEST instead.
6610
6611 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
6612
6613         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
6614         * Makefile.in: Regenerate.
6615         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
6616         There's no history to be compatible with.
6617         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
6618         source files from the build.
6619         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
6620         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
6621         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
6622         * src/Makefile.in: Regenerate.
6623         * src/c++11/Makefile.in: Regenerate.
6624         * src/c++17/Makefile.in: Regenerate.
6625         * src/c++20/Makefile.in: Regenerate.
6626         * src/c++98/Makefile.in: Regenerate.
6627
6628 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
6629
6630         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
6631         filesystem, libbacktrace and experimental.
6632         * src/Makefile.in: Regenerate.
6633
6634 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
6635
6636         PR libstdc++/108672
6637         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
6638         instead of int32_t.
6639
6640 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
6641
6642         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
6643         * doc/html/manual/documentation_hacking.html: Regenerate.
6644
6645 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
6646
6647         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
6648         storage to the move-from instance when allocators are equal.
6649         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
6650         New test case.
6651
6652 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
6653
6654         * config/os/gnu-linux/os_defines.h [!__linux__]
6655         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
6656
6657 2023-02-03  Patrick Palka  <ppalka@redhat.com>
6658
6659         * include/bits/ranges_algo.h (__find_last_fn, find_last):
6660         Define.
6661         (__find_last_if_fn, find_last_if): Define.
6662         (__find_last_if_not_fn, find_last_if_not): Define.
6663         * testsuite/25_algorithms/find_last/1.cc: New test.
6664         * testsuite/25_algorithms/find_last_if/1.cc: New test.
6665         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
6666
6667 2023-02-03  Patrick Palka  <ppalka@redhat.com>
6668
6669         * include/bits/ranges_algo.h (out_value_result): Define.
6670         (iota_result): Define.
6671         (__iota_fn, iota): Define.
6672         * testsuite/25_algorithms/iota/1.cc: New test.
6673
6674 2023-02-03  Patrick Palka  <ppalka@redhat.com>
6675
6676         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
6677         (__contains_subrange_fn, contains_subrange): Define.
6678         * testsuite/25_algorithms/contains/1.cc: New test.
6679         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
6680
6681 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
6682
6683         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
6684         * doc/html/manual/abi.html: Regenerate.
6685
6686 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6687
6688         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
6689         errc::function_not_supported instead of errc::not_supported.
6690
6691 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6692
6693         * include/std/sstream  (basic_stringbuf::view): Define for old
6694         std::string ABI.
6695         (basic_istringstream::view, basic_0stringstream::view)
6696         (basic_stringstream::view): Likewise.
6697         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
6698         { dg-require-effective-target cxx11_abi }.
6699         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
6700         Likewise.
6701         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
6702         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
6703         Likewise.
6704         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
6705         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
6706         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
6707         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
6708         Likewise.
6709
6710 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6711
6712         PR libstdc++/108636
6713         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
6714         conversion operators for directory iterator comparisons with
6715         std::default_sentinel_t.
6716         * include/bits/fs_path.h (path::path(string_view, _Type))
6717         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
6718         definitions to ...
6719         * src/c++17/fs_path.cc: ... here.
6720         * testsuite/27_io/filesystem/path/108636.cc: New test.
6721
6722 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6723
6724         * include/std/variant (variant::operator=): Implement resolution
6725         of LWG 3585.
6726         * testsuite/20_util/variant/lwg3585.cc: New test.
6727
6728 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
6729
6730         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
6731         link to https.
6732         * doc/html/manual/using_exceptions.html: Regenerate.
6733
6734 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
6735
6736         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
6737         * doc/html/manual/debug.html: Regenerate.
6738
6739 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
6740
6741         * src/c++11/random.cc (random_device::_M_fini): Do not try to
6742         close the file handle if the target doesn't support the
6743         /dev/random and /dev/urandom files.
6744
6745 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
6746
6747         * config/os/generic/error_constants.h (errc::value_too_large)
6748         [__AVR__]: Define.
6749         * src/c++11/system_error.cc
6750         (system_category::default_error_condition) [__AVR__]: Only match
6751         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
6752         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
6753         for ENOENT etc. in switch.
6754         (fs::remove_all) [__AVR__]: Likewise.
6755         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
6756         close etc.
6757
6758 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
6759
6760         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
6761         embed_zoneinfo=no
6762         * configure: Regenerate.
6763
6764 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
6765
6766         PR testsuite/108632
6767         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
6768         struct at end of S0.
6769
6770 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
6771
6772         * doc/xml/manual/shared_ptr.xml: Move links from both
6773         http://open-std.org and http://www.open-std.org to
6774         https://www.open-std.org.
6775         * doc/html/manual/memory.html: Regenerate.
6776
6777 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
6778
6779         * doc/xml/manual/appendix_contributing.xml: Adjust link to
6780         ISO C++ standard at ANSI.
6781         Move link to www.open-std.org to https.
6782         * doc/html/manual/appendix_contributing.html: Regenerate.
6783
6784 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
6785
6786         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
6787         links to https.
6788         * doc/html/manual/documentation_hacking.html: Regenerate.
6789
6790 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
6791
6792         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
6793         * doc/html/manual/abi.html: Regenerate.
6794
6795 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
6796
6797         PR libstdc++/108568
6798         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
6799         include features.h if present and then check __GLIBC__ and
6800         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
6801         __GLIBC_PREREQ which isn't defined yet.
6802
6803 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
6804
6805         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
6806         string literal.
6807
6808 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
6809
6810         PR libstdc++/108554
6811         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
6812
6813 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
6814
6815         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
6816         rules named "+" for compatibility with older tzdata.zi files.
6817
6818 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
6819
6820         PR libstdc++/108554
6821         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
6822         nonnull attribute.
6823         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
6824         attributes.
6825         * testsuite/23_containers/map/modifiers/108554.cc: New test.
6826
6827 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
6828
6829         PR libstdc++/108530
6830         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
6831         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
6832
6833 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
6834
6835         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
6836         use https.
6837         * doc/html/manual/bugs.html: Regenerate.
6838
6839 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
6840
6841         PR libstdc++/108530
6842         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
6843         /etc/sysconfig/clock.
6844
6845 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
6846
6847         PR libstdc++/102301
6848         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
6849         std::make_reverse_iterator.
6850         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
6851         (make_from_tuple): Add static assertion from P2255 to diagnose
6852         dangling references.
6853         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
6854         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
6855
6856 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
6857
6858         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
6859         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
6860         (_Safe_iterator::operator++(int)): Use latter.
6861         (_Safe_iterator::operator--(int)): Likewise.
6862         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
6863         check.
6864         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
6865         New.
6866         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
6867         (_Safe_local_iterator::operator++(int)): Use latter.
6868         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
6869         entry associated to the array entry.
6870
6871 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
6872
6873         * include/bits/fs_path.h (u8path): Add deprecated attribute.
6874         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
6875         -Wno-deprecated-declarations for C++20 and later.
6876         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
6877         Likewise.
6878         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
6879         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
6880         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
6881
6882 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
6883
6884         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
6885         Always call _M_fini and _M_getentropy.
6886
6887 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
6888
6889         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
6890         to www.open-std.org to use https.
6891         (COM: Component Model Object Technologies): Rename from...
6892         (The Component Object Model): ...to.
6893         * doc/html/manual/policy_data_structures.html: Regenerate.
6894
6895 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
6896
6897         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
6898         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
6899         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
6900
6901 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
6902
6903         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
6904         of $host. Fix check for file being present during native build.
6905         * configure: Regenerate.
6906
6907 2023-01-17  Martin Liska  <mliska@suse.cz>
6908
6909         * src/libbacktrace/Makefile.in: Regenerate.
6910
6911 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
6912
6913         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
6914
6915 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
6916
6917         PR libstdc++/108413
6918         * include/c_compatibility/stdatomic.h: Change copyright line to
6919         be consistent with other headers contributed under DCO terms.
6920         * include/std/expected: Add full stop to copyright line.
6921         * src/c++20/tzdb.cc: Likewise.
6922
6923 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
6924
6925         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
6926         https.
6927         * doc/xml/manual/status_cxx2017.xml: Ditto.
6928         * doc/xml/manual/status_cxx2020.xml: Ditto.
6929         * doc/xml/manual/status_cxx2023.xml: Ditto.
6930         * doc/html/manual/status.html: Regenerate.
6931
6932 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
6933
6934         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
6935         and fail gracefully if defining the weak symbol doesn't work.
6936
6937 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
6938
6939         PR libstdc++/108288
6940         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
6941         fix to other iterator category.
6942         (_Safe_iterator<>::operator--(int)): Likewise.
6943         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
6944         Fix deadlock.
6945         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
6946         (invalid_local_iterator_post_increment): New.
6947         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
6948         New test.
6949         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
6950         New test.
6951
6952 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
6953
6954         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
6955         dg-options.
6956
6957 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
6958
6959         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
6960
6961 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
6962
6963         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
6964         windows.h. Add pecoff as FORMAT_FILE.
6965         * config.h.in: Regenerate.
6966         * configure: Regenerate.
6967         * src/libbacktrace/Makefile.am: Regenerate.
6968         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
6969
6970 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
6971
6972         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
6973         raw __name if __cxa_demangle could not demangle it.
6974
6975 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
6976
6977         PR libstdc++/108409
6978         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
6979         variable.
6980
6981 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
6982
6983         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
6984         loading tzdb.
6985         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
6986         effective target.
6987         * testsuite/std/time/tzdb_list/1.cc: Likewise.
6988
6989 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
6990
6991         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
6992         --with-libstdcxx-zoneinfo-dir configure option with
6993         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
6994         a directory.
6995         * config.h.in: Regenerate.
6996         * configure: Regenerate.
6997         * doc/xml/manual/configure.xml: Document configure option.
6998         * doc/html/manual/configure.html: Regenerate.
6999         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
7000         * src/c++20/Makefile.in: Regenerate.
7001         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
7002         null pointer if no directory is configured.
7003         (zoneinfo_dir): Replace with ...
7004         (zoneinfo_file): New function.
7005         (tzdata_stream): New istream class.
7006         (remote_version, reload_tzdb): Use tzdata_stream.
7007         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
7008         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
7009         tzdata.zi file in default location.
7010         * src/c++20/tzdata.zi: New file.
7011
7012 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7013
7014         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
7015         * testsuite/std/time/month_day/io.cc: New test.
7016         * testsuite/std/time/month_day_last/io.cc: New test.
7017         * testsuite/std/time/month_weekday/io.cc: New test.
7018         * testsuite/std/time/month_weekday_last/io.cc: New test.
7019         * testsuite/std/time/weekday_indexed/io.cc: New test.
7020         * testsuite/std/time/weekday_last/io.cc: New test.
7021         * testsuite/std/time/year_month/io.cc: New test.
7022         * testsuite/std/time/year_month_day_last/io.cc: New test.
7023         * testsuite/std/time/year_month_weekday/io.cc: New test.
7024         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
7025
7026 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
7027
7028         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
7029         specifications.
7030         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
7031         export.
7032
7033 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7034
7035         * include/bits/std_mutex.h: Include <errno.h>.
7036
7037 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
7038
7039         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
7040         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
7041         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
7042         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
7043         std::make_unique with a freestanding-compatible wrapper around
7044         unique_ptr.
7045         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
7046         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
7047         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
7048         Ditto.
7049         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
7050         of __cpp_lib_ranges in !HOSTED.
7051
7052 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
7053
7054         * include/Makefile.am: Install bits/char_traits.h,
7055         std/string_view
7056         * include/Makefile.in: Regenerate.
7057         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
7058         mbstate-only bits behind appropriate #ifs.
7059         * include/std/string_view: Gate <iostream> functionality behind
7060         HOSTED.
7061         * include/std/version: Enable __cpp_lib_constexpr_string_view
7062         and __cpp_lib_starts_ends_with in !HOSTED.
7063         * include/std/ranges: Re-enable __is_basic_string_view on
7064         freestanding, include <string_view> directly.
7065         * include/precompiled/stdc++.h: Include <string_view> when
7066         !HOSTED too.
7067         * testsuite/20_util/function_objects/searchers.cc: Skip testing
7068         boyer_moore searchers on freestanding
7069         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
7070         <string>-related tests behind __STDC_HOSTED__.
7071         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
7072         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
7073         unused <stdexcept> include.
7074         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
7075         unused <vector> include.
7076         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
7077         Guard <string> related testing behind __STDC_HOSTED__.
7078         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
7079         Guard <stdexcept> related tests behind __STDC_HOSTED__.
7080         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
7081         Ditto.
7082         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
7083         Guard <stdexcept> tests behind __STDC_HOSTED__.
7084         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
7085         Enable test on freestanding, guard <stdexcept> bits behind
7086         __STDC_HOSTED__.
7087         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
7088         Guard <stdexcept> bits behind __STDC_HOSTED__.
7089         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
7090         Ditto.
7091
7092 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
7093
7094         PR libstdc++/86419
7095         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
7096         errors in incomplete multibyte sequences.
7097         (utf16_in): Remove surrogates parameter. Fix conditions for
7098         returning partial.
7099         (utf16_out): Fix condition for returning partial.
7100         (ucs2_in): Do not pass surrogates argument to utf16_in.
7101         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
7102         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
7103         tests.
7104         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
7105         test.
7106
7107 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7108
7109         PR libstdc++/108331
7110         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
7111         __GTHREAD_LEGACY_MUTEX_T if defined.
7112
7113 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7114
7115         PR libstdc++/108327
7116         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
7117         Export __try_use_facet specializations for facets in namespace
7118         __gnu_cxx_ldbl128.
7119         * config/os/gnu-linux/ldbl-ieee128-extra.ver
7120         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
7121         __gnu_cxx_ieee128.
7122         * testsuite/util/testsuite_abi.cc: Add to lists of known and
7123         latest versions.
7124
7125 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7126
7127         * include/bits/std_mutex.h: Remove <system_error> include.
7128         * include/std/condition_variable: Add <bits/error_constants.h>
7129         include.
7130         * include/std/mutex: Likewise.
7131         * include/std/shared_mutex: Likewise.
7132
7133 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
7134
7135         PR libstdc++/77691
7136         * include/experimental/memory_resource
7137         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
7138         (do_allocate, do_deallocate): Check it.
7139         * testsuite/experimental/memory_resource/new_delete_resource.cc:
7140         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
7141
7142 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
7143
7144         * doc/xml/manual/abi.xml: Add latest library versions.
7145         * doc/html/manual/abi.html: Regenerate.
7146
7147 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
7148
7149         PR libstdc++/107189
7150         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
7151         unused _Alloc_node instance.
7152
7153 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
7154
7155         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
7156         Define as unsigned long if always lock-free, and unsigned int
7157         otherwise.
7158
7159 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
7160
7161         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
7162         __catch macros for exception handling.
7163
7164 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
7165
7166         PR libstdc++/108221
7167         * include/bits/stl_algobase.h (__lg): Replace six overloads with
7168         a single function template for all integer types.
7169         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
7170         arithmetic results back to _Distance.
7171
7172 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
7173
7174         PR libstdc++/108221
7175         * include/std/span (span::span()): Un-simplify constraint to
7176         work for size_t of lesser rank than int.
7177
7178 2023-01-07  LIU Hao  <lh_mouse@126.com>
7179
7180         PR middle-end/108300
7181         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
7182         <windows.h>.
7183         * src/c++11/thread.cc: Likewise.
7184         * src/c++17/fs_ops.cc: Likewise.
7185         * src/filesystem/ops.cc: Likewise.
7186
7187 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7188
7189         PR libstdc++/108228
7190         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
7191
7192 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7193
7194         PR libstdc++/108235
7195         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
7196         template and partial specialization for synchronizing access to
7197         time_zone::_Impl::infos.
7198         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
7199         rules_counter.
7200
7201 2023-01-06  Patrick Palka  <ppalka@redhat.com>
7202
7203         PR libstdc++/108260
7204         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
7205         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
7206         (__cpp_lib_ranges_chunk): Likewise.
7207         (__cpp_lib_ranges_slide): Likewise.
7208         (__cpp_lib_ranges_chunk_by): Likewise.
7209         (__cpp_lib_ranges_join_with): Likewise.
7210         (__cpp_lib_ranges_repeat): Likewise.
7211         (__cpp_lib_ranges_stride): Likewise.
7212         (__cpp_lib_ranges_cartesian_product): Likewise.
7213         (__cpp_lib_ranges_as_rvalue): Likewise.
7214         * include/std/version: Ditto.
7215         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
7216         feature-test macro.
7217         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
7218         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
7219         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
7220         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
7221         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
7222         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
7223         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
7224         * testsuite/std/ranges/repeat/1.cc: Likewise.
7225         * testsuite/std/ranges/zip/1.cc: Likewise.
7226         * testsuite/std/ranges/version_c++23.cc: New test.
7227
7228 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7229
7230         PR libstdc++/108214
7231         * include/std/bitset (operator>>): Use alloca in the right
7232         scope, not in a constructor.
7233         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
7234
7235 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7236
7237         PR libstdc++/108221
7238         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
7239         Disable visiting floating-point types.
7240
7241 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7242
7243         PR libstdc++/108288
7244         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
7245         (_Safe_iterator::operator--(int)): Do not hold lock around
7246         construction of return value.
7247
7248 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
7249
7250         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
7251         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
7252         lock release.  Revise loop.
7253         (__atomic_add): Likewise.
7254
7255 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7256
7257         PR libstdc++/108212
7258         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
7259         variable.
7260         (StdChronoTimePointPrinter::to_string): Use it.
7261
7262 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7263
7264         PR libstdc++/108290
7265         * include/std/functional (_Bind_front): Add no_unique_address
7266         attribute to data members.
7267         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
7268         size of call wrappers with empty types for targets and bound
7269         arguments.
7270
7271 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7272
7273         PR libstdc++/108211
7274         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
7275         using only last component of the name.
7276
7277 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7278
7279         PR libstdc++/108228
7280         PR libstdc++/108235
7281         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
7282         the latest symbol version.
7283         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
7284         atomic<_Node*> is not always lock free.
7285         (USE_ATOMIC_LIST_HEAD): New macro.
7286         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
7287         definition of weak symbol.
7288         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
7289         (tzdb_list::_Node::_S_list_head): New function for accessing
7290         list head efficiently.
7291         (tzdb_list::_Node::_S_cache_list_head): New function for
7292         updating _S_list_head.
7293
7294 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7295
7296         PR libstdc++/108265
7297         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
7298         duration rep is unsigned.
7299         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
7300
7301 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
7302
7303         PR libstdc++/108228
7304         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
7305         Add __gnu_cxx::zoneinfo_dir_override().
7306
7307 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
7308
7309         PR libstdc++/108258
7310         * include/std/array (__array_traits<T, 0>::operator T*()): Add
7311         constexpr.
7312         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
7313         std::array<T, 0>::data().
7314
7315 \f
7316 Copyright (C) 2023 Free Software Foundation, Inc.
7317
7318 Copying and distribution of this file, with or without modification,
7319 are permitted in any medium without royalty provided the copyright
7320 notice and this notice are preserved.