libstdc++-v3/ChangeLog

   1 2023-11-15  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         PR libstdc++/112491
   4         * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.index):
   5         Correctly handle unused capacity at the start of the first node.
   6         * testsuite/libstdc++-xmethods/deque.cc: Check index operator
   7         when elements have been removed from the front.
   8
   9 2023-11-15  Jonathan Wakely  <jwakely@redhat.com>
  10
  11         * include/std/stacktrace (basic_stacktrace::at): Fix class name
  12         in exception message.
  13         * testsuite/19_diagnostics/stacktrace/hash.cc: Do not fail if
  14         current() returns a non-empty stacktrace.
  15
  16 2023-11-15  Alexandre Oliva  <oliva@gnu.org>
  17
  18         Revert:
  19         2023-11-15  Alexandre Oliva  <oliva@adacore.com>
  20
  21         * include/bits/stl_bvector.h (_GLIBCXX_ALWAYS_INLINE): Undef.
  22
  23 2023-11-15  Alexandre Oliva  <oliva@adacore.com>
  24
  25         * include/bits/stl_bvector.h (_GLIBCXX_ALWAYS_INLINE): Undef.
  26
  27 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
  28
  29         * include/std/chrono (operator-(const weekday&, const weekday&)):
  30         Optimize.
  31
  32 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
  33
  34         * include/std/chrono (weekday::_S_from_days): Fix UB.
  35         * testsuite/std/time/weekday/1.cc: Add test for overflow.
  36
  37 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
  38
  39         * include/std/chrono (year::is_leap): Clear code.
  40
  41 2023-11-14  Cassio Neri  <cassio.neri@gmail.com>
  42
  43         * include/std/chrono (year_month_day_last::day): Remove &1.
  44
  45 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
  46
  47         * include/std/charconv (__from_chars_pow2_base): Convert base to
  48         unsigned for call to __countr_zero.
  49         (__from_chars_alnum): Likewise for call to __bit_width.
  50
  51 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
  52
  53         PR libstdc++/112348
  54         * include/std/stacktrace (hash<basic_stacktrace<Alloc>>): Fix
  55         type of hash functio nfor entries.
  56         * testsuite/19_diagnostics/stacktrace/hash.cc: New test.
  57
  58 2023-11-14  Jonathan Wakely  <jwakely@redhat.com>
  59
  60         PR libstdc++/112491
  61         * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.size): Fix
  62         calculation to use _M_start._M_cur.
  63         * testsuite/libstdc++-xmethods/deque.cc: Check failing cases.
  64
  65 2023-11-13  Arsen Arsenović  <arsen@aarsen.me>
  66
  67         * configure: Regenerate.
  68
  69 2023-11-13  Jonathan Wakely  <jwakely@redhat.com>
  70
  71         * testsuite/std/time/clock/file/io.cc: Double timeout using
  72         dg-timeout-factor.
  73         * testsuite/std/time/clock/gps/io.cc: Likewise.
  74         * testsuite/std/time/clock/local/io.cc: Likewise.
  75         * testsuite/std/time/clock/system/io.cc: Likewise.
  76         * testsuite/std/time/clock/tai/io.cc: Likewise.
  77         * testsuite/std/time/clock/utc/io.cc: Likewise.
  78
  79 2023-11-13  Jonathan Wakely  <jwakely@redhat.com>
  80
  81         PR libstdc++/112480
  82         * include/std/optional (_Optional_payload_base::_M_reset): Set
  83         _M_engaged to false unconditionally.
  84
  85 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
  86
  87         PR libstdc++/112467
  88         * include/bits/stl_bvector.h (_M_assume_normalized): Do not use
  89         statement form of assume attribute for Clang.
  90
  91 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
  92
  93         * include/std/string_view (operator==, operator<=>): Remove
  94         redundant overloads (LWG 3950).
  95
  96 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
  97
  98         * testsuite/26_numerics/headers/complex.h/std_c++11.h: Moved to...
  99         * testsuite/26_numerics/headers/complex.h/std_c++11.cc: ...here.
 100         * testsuite/26_numerics/headers/complex.h/std_c++98.h: Moved to...
 101         * testsuite/26_numerics/headers/complex.h/std_c++98.cc: ...here.
 102         Check macro first and then #undef.
 103         * testsuite/26_numerics/headers/complex.h/std_gnu++11.h: Moved to...
 104         * testsuite/26_numerics/headers/complex.h/std_gnu++11.cc: ...here.
 105
 106 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 107
 108         PR libstdc++/112473
 109         * include/bits/utility.h (integer_sequence): Add static_assert.
 110         * testsuite/20_util/integer_sequence/112473.cc: New test.
 111
 112 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 113
 114         * testsuite/20_util/pair/dangling_ref.cc: Add hosted effective
 115         target for specifiers using c++17_down.
 116
 117 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 118
 119         * include/bits/shared_ptr_atomic.h (atomic_is_lock_free)
 120         (atomic_load_explicit, atomic_load, atomic_store_explicit)
 121         (atomic_store, atomic_exchange_explicit, atomic_exchange)
 122         (atomic_compare_exchange_strong, atomic_compare_exchange_weak)
 123         (atomic_compare_exchange_strong_explicit)
 124         (atomic_compare_exchange_weak_explicit): Add deprecated
 125         attribute for C++20 and later.
 126         * testsuite/20_util/shared_ptr/atomic/1.cc: Suppress deprecated
 127         warnings.
 128         * testsuite/20_util/shared_ptr/atomic/2.cc: Likewise.
 129         * testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
 130         * testsuite/29_atomics/atomic/lwg3220.cc: Likewise.
 131
 132 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 133
 134         * include/bits/std_mutex.h (lock_guard): Add [[nodiscard]]
 135         attribute to constructors.
 136         * include/bits/unique_lock.h (unique_lock): Likewise.
 137         * include/std/mutex (scoped_lock, scoped_lock<Mutex>): Likewise.
 138         * testsuite/30_threads/lock_guard/cons/nodiscard.cc: New test.
 139         * testsuite/30_threads/scoped_lock/cons/nodiscard.cc: New test.
 140         * testsuite/30_threads/unique_lock/cons/nodiscard.cc: New test.
 141
 142 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 143
 144         * include/std/span (span, as_bytes, as_writable_bytes): Add
 145         [[nodiscard]] attribute on all non-void functions.
 146         * testsuite/23_containers/span/back_assert_neg.cc: Suppress
 147         nodiscard warning.
 148         * testsuite/23_containers/span/back_neg.cc: Likewise.
 149         * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
 150         * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
 151         * testsuite/23_containers/span/first_neg.cc: Likewise.
 152         * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
 153         * testsuite/23_containers/span/front_neg.cc: Likewise.
 154         * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
 155         * testsuite/23_containers/span/index_op_neg.cc: Likewise.
 156         * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
 157         * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
 158         * testsuite/23_containers/span/last_neg.cc: Likewise.
 159         * testsuite/23_containers/span/subspan_2_assert_neg.cc:
 160         Likewise.
 161         * testsuite/23_containers/span/subspan_3_assert_neg.cc:
 162         Likewise.
 163         * testsuite/23_containers/span/subspan_4_assert_neg.cc:
 164         Likewise.
 165         * testsuite/23_containers/span/subspan_5_assert_neg.cc:
 166         Likewise.
 167         * testsuite/23_containers/span/subspan_6_assert_neg.cc:
 168         Likewise.
 169         * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
 170         * testsuite/23_containers/span/subspan_neg.cc: Likewise.
 171         * testsuite/23_containers/span/nodiscard.cc: New test.
 172
 173 2023-11-11  Jonathan Wakely  <jwakely@redhat.com>
 174
 175         PR libstdc++/111638
 176         * config.h.in: Regenerate.
 177         * configure: Regenerate.
 178         * linkage.m4 (GLIBCXX_MAYBE_UNDERSCORED_FUNCS): Remove.
 179         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1): Do not check for _foo.
 180         (GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1): Likewise.
 181         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2): Likewise.
 182         (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3): Likewise.
 183         (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2): Do not use
 184         GLIBCXX_MAYBE_UNDERSCORED_FUNCS.
 185
 186 2023-11-11  Nathaniel Shead  <nathanieloshead@gmail.com>
 187
 188         PR libstdc++/79700
 189         * include/c_global/cmath (acosf, acosl, asinf, asinl, atanf)
 190         (atanl, atan2f, atan2l, ceilf, ceill, cosf, cosl, coshf, coshl)
 191         (expf, expl, fabsf, fabsl, floorf, floorl, fmodf, fmodl, frexpf)
 192         (frexpl, ldexpf, ldexpl, logf, logl, log10f, log10l, modff)
 193         (modfl, powf, powl, sinf, sinl, sinhf, sinhl, sqrtf, sqrtl, tanf)
 194         (tanl, tanhf, tanhl): Add using-declarations in namespace std.
 195         * testsuite/26_numerics/headers/cmath/equivalent_functions.cc:
 196         New test.
 197         * testsuite/26_numerics/headers/cmath/functions_std_c++17.cc:
 198         Add checks for existence of above names.
 199
 200 2023-11-09  Arsen Arsenović  <arsen@aarsen.me>
 201
 202         * testsuite/20_util/scoped_allocator/noexcept.cc: Mark as
 203         requiring hosted.
 204
 205 2023-11-09  Arsen Arsenović  <arsen@aarsen.me>
 206
 207         * include/bits/memoryfwd.h: Remove HOSTED check around allocator
 208         and its specializations.
 209
 210 2023-11-09  Patrick Palka  <ppalka@redhat.com>
 211
 212         PR libstdc++/112453
 213         * include/std/ranges (__detail::__box<_Tp>::operator*): Define
 214         && overloads as well.
 215         (__detail::__take_of_repeat_view): Forward __r when accessing
 216         its _M_value member.
 217         (__detail::__drop_of_repeat_view): Likewise.
 218         * testsuite/std/ranges/repeat/1.cc (test07): New test.
 219
 220 2023-11-09  François Dumont  <fdumont@gcc.gnu.org>
 221
 222         * include/bits/hashtable_policy.h (_RehashStateGuard): New.
 223         (_Insert_base<>::_M_insert_range(_IIt, _IIt, const _NodeGet&, false_type)):
 224         Adapt.
 225         * include/bits/hashtable.h (__rehash_guard_t): New.
 226         (__rehash_state): Remove.
 227         (_M_rehash): Remove.
 228         (_M_rehash_aux): Rename into _M_rehash.
 229         (_M_assign_elements, _M_insert_unique_node, _M_insert_multi_node): Adapt.
 230         (rehash): Adapt.
 231
 232 2023-11-09  François Dumont  <fdumont@gcc.gnu.org>
 233
 234         * include/bits/hashtable_policy.h
 235         (struct _NodePtrGuard<_HashtableAlloc, _NodePtr>): New.
 236         (_ReuseAllocNode::operator()(_Args&&...)): Use latter to guard allocated node
 237         pointer while constructing in place the value_type instance.
 238
 239 2023-11-09  Alexandre Oliva  <oliva@adacore.com>
 240
 241         PR libstdc++/110807
 242         * include/bits/stl_bvector.h (_Bit_iterator_base): Add
 243         _M_assume_normalized member function.  Call it in _M_bump_up,
 244         _M_bump_down, _M_incr, operator==, operator<=>, operator<, and
 245         operator-.
 246         (_Bit_iterator): Also call it in operator*.
 247         (_Bit_const_iterator): Likewise.
 248
 249 2023-11-07  François Dumont  <fdumont@gcc.gnu.org>
 250
 251         * include/bits/hashtable_policy.h
 252         (_Hashtable_alloc<>::_M_allocate_node): Add missing call to node destructor
 253         on construct exception.
 254
 255 2023-11-07  Richard Biener  <rguenther@suse.de>
 256
 257         PR libstdc++/112351
 258         * src/c++98/locale.cc (locale::facet::_S_initialize_once):
 259         Check whether _S_c_locale is already initialized.
 260         (locale::facet::_S_get_c_locale): Always perform non-threadsafe
 261         init when threadsafe init failed.
 262
 263 2023-11-06  Ian Lance Taylor  <iant@golang.org>
 264
 265         PR libbacktrace/111315
 266         PR libbacktrace/112263
 267         * acinclude.m4: Set -D_GNU_SOURCE in BACKTRACE_CPPFLAGS and when
 268         grepping link.h for dl_iterate_phdr.
 269         * configure: Regenerate.
 270
 271 2023-11-06  Jonathan Wakely  <jwakely@redhat.com>
 272
 273         * include/std/expected (expected::and_then, expected::or_else):
 274         Add string literals to static assertions.
 275         * include/std/optional (optional::and_then, optional::or_else):
 276         Likewise.
 277
 278 2023-11-04  Feng Jisen  <J1senn@outlook.com>
 279
 280         * include/bits/utility.h (_Nth_type): Remove redundant partial
 281         specialization.
 282
 283 2023-11-04  Jonathan Wakely  <jwakely@redhat.com>
 284
 285         PR libstdc++/110133
 286         * include/std/system_error (system_error::system_error): Group
 287         arguments so that concatenation can reuse rvalue's capacity.
 288         * src/c++11/system_error.cc (strerror_string): New function.
 289         [_GLIBCXX_HAVE_STRERROR_R] (use_strerror_result): New functions.
 290         (generic_error_category::message): Use strerror_string.
 291         (system_error_category::message): Likewise.
 292
 293 2023-11-04  Jonathan Wakely  <jwakely@redhat.com>
 294
 295         * doc/xml/manual/appendix_contributing.xml: Replace example that
 296         uses a BADNAME.
 297         * doc/html/manual/source_code_style.html: Regenerate.
 298
 299 2023-11-02  Jonathan Wakely  <jwakely@redhat.com>
 300
 301         PR libstdc++/112314
 302         * include/std/string_view (string_view::remove_suffix): Add
 303         debug assertion.
 304         * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/debug.cc:
 305         New test.
 306         * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/debug.cc:
 307         New test.
 308
 309 2023-11-02  Jonathan Wakely  <jwakely@redhat.com>
 310
 311         * acinclude.m4 (GLIBCXX_ENABLE_C99): Fix snprintf checks.
 312         * configure: Regenerate.
 313
 314 2023-10-30  François Dumont  <fdumont@gcc.gnu.org>
 315
 316         * config/abi/pre/gnu-versioned-namespace.ver: Add comment on recently
 317         added emul TLS symbols.
 318
 319 2023-10-30  François Dumont  <fdumont@gcc.gnu.org>
 320
 321         * src/experimental/contract.cc
 322         [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Rework comment.
 323         Remove weak attribute.
 324
 325 2023-10-29  François Dumont  <fdumont@gcc.gnu.org>
 326
 327         * config/abi/pre/gnu-versioned-namespace.ver: Add missing emul TLS
 328         symbols.
 329
 330 2023-10-29  François Dumont  <fdumont@gcc.gnu.org>
 331
 332         * src/experimental/contract.cc
 333         [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Provide symbol
 334         without version namespace decoration for gcc.
 335
 336 2023-10-26  Jonathan Wakely  <jwakely@redhat.com>
 337
 338         PR libstdc++/112089
 339         * include/std/shared_mutex (shared_lock::unlock): Change errc
 340         constant to operation_not_permitted.
 341         * testsuite/30_threads/shared_lock/locking/112089.cc: New test.
 342
 343 2023-10-26  Jonathan Wakely  <jwakely@redhat.com>
 344
 345         * testsuite/20_util/duration/io.cc: Double timeout using
 346         dg-timeout-factor.
 347         * testsuite/std/time/day/io.cc: Likewise.
 348         * testsuite/std/time/format.cc: Likewise.
 349         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
 350         * testsuite/std/time/month/io.cc: Likewise.
 351         * testsuite/std/time/month_day/io.cc: Likewise.
 352         * testsuite/std/time/month_day_last/io.cc: Likewise.
 353         * testsuite/std/time/month_weekday/io.cc: Likewise.
 354         * testsuite/std/time/month_weekday_last/io.cc: Likewise.
 355         * testsuite/std/time/weekday/io.cc: Likewise.
 356         * testsuite/std/time/weekday_indexed/io.cc: Likewise.
 357         * testsuite/std/time/weekday_last/io.cc: Likewise.
 358         * testsuite/std/time/year/io.cc: Likewise.
 359         * testsuite/std/time/year_month/io.cc: Likewise.
 360         * testsuite/std/time/year_month_day/io.cc: Likewise.
 361         * testsuite/std/time/year_month_day_last/io.cc: Likewise.
 362         * testsuite/std/time/year_month_weekday/io.cc: Likewise.
 363         * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
 364         * testsuite/std/time/zoned_time/io.cc: Likewise.
 365
 366 2023-10-25  Jonathan Wakely  <jwakely@redhat.com>
 367
 368         PR libstdc++/111936
 369         * src/libbacktrace/Makefile.am: Add -prefer-pic to libtool
 370         compile commands.
 371         * src/libbacktrace/Makefile.in: Regenerate.
 372
 373 2023-10-24  Paul M. Bendixen  <paulbendixen@gmail.com>
 374
 375         * include/Makefile.am: Move cstdarg, cstdalign and cstdbool to
 376         freestanding.
 377         * include/Makefile.in: Regenerate.
 378
 379 2023-10-22  Iain Sandoe  <iain@sandoe.co.uk>
 380
 381         * configure: Regenerate.
 382         * configure.ac: Handle Darwin rpaths.
 383         * src/Makefile.am: Handle Darwin rpaths.
 384         * src/Makefile.in: Regenerate.
 385
 386 2023-10-21  Jonathan Wakely  <jwakely@redhat.com>
 387
 388         * include/bits/basic_string.h (_M_init_local_buf()): New
 389         function.
 390         (_M_use_local_data()): Use _M_init_local_buf.
 391         (basic_string(), basic_string(const Alloc&))
 392         (basic_string(basic_string&&))
 393         (basic_string(basic_string&&, const Alloc&)): Use
 394         _M_init_local_buf instead of _M_use_local_data().
 395         * include/bits/basic_string.tcc (swap(basic_string&))
 396         (_M_construct(InIter, InIter, input_iterator_tag))
 397         (_M_construct(InIter, InIter, forward_iterator_tag))
 398         (_M_construct(size_type, CharT), reserve()): Likewise.
 399
 400 2023-10-21  Benjamin Brock  <brock@cs.berkeley.edu>
 401
 402         * include/std/ranges (zip_view, adjacent_view): Implement
 403         workaround for LLVM-61763.
 404
 405 2023-10-21  Dimitrij Mijoski  <dmjpp@hotmail.com>
 406
 407         * testsuite/22_locale/codecvt/codecvt_unicode.h: Test length()
 408
 409 2023-10-21  Jonathan Wakely  <jwakely@redhat.com>
 410
 411         * include/bits/fs_dir.h (operator==(default_sentinel_t)): Fix
 412         indentation.
 413
 414 2023-10-20  Marek Polacek  <polacek@redhat.com>
 415
 416         PR testsuite/111883
 417         * include/std/charconv (from_chars): Add explicit casts.
 418
 419 2023-10-19  François Dumont  <fdumont@gcc.gnu.org>
 420
 421         * include/bits/hashtable_policy.h
 422         (_Hash_code_base::_M_hash_code(const _Hash&, const _Hash_node_value<>&)): Remove.
 423         (_Hash_code_base::_M_hash_code<_H2>(const _H2&, const _Hash_node_value<>&)): Remove.
 424         * include/bits/hashtable.h
 425         (_M_src_hash_code<_H2>(const _H2&, const key_type&, const __node_value_type&)): New.
 426         (_M_merge_unique<>, _M_merge_multi<>): Use latter.
 427         * testsuite/23_containers/unordered_map/modifiers/merge.cc
 428         (test04, test05, test06): New test cases.
 429
 430 2023-10-13  Jakub Jelinek  <jakub@redhat.com>
 431
 432         * testsuite/tr1/8_c_compatibility/cstdio/functions.cc (test01):
 433         Initialize stream to va_arg(ap, FILE*) rather than 0.
 434         * testsuite/tr1/8_c_compatibility/cwchar/functions.cc (test01):
 435         Likewise.
 436
 437 2023-10-13  Hans-Peter Nilsson  <hp@axis.com>
 438
 439         * testsuite/29_atomics/atomic/compare_exchange_padding.cc,
 440         testsuite/29_atomics/atomic_flag/clear/1.cc,
 441         testsuite/29_atomics/atomic_flag/cons/value_init.cc,
 442         testsuite/29_atomics/atomic_flag/test_and_set/explicit.cc,
 443         testsuite/29_atomics/atomic_flag/test_and_set/implicit.cc,
 444         testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc,
 445         testsuite/29_atomics/atomic_ref/generic.cc,
 446         testsuite/29_atomics/atomic_ref/integral.cc,
 447         testsuite/29_atomics/atomic_ref/pointer.cc: Replace
 448         dg-require-thread-fence with dg-require-atomic-cmpxchg-word.
 449
 450 2023-10-13  Hans-Peter Nilsson  <hp@axis.com>
 451
 452         * testsuite/lib/dg-options.exp (dg-require-atomic-cmpxchg-word):
 453         New proc.
 454         * testsuite/lib/libstdc++.exp (check_v3_target_atomic_cmpxchg_word):
 455         Ditto.
 456
 457 2023-10-05  François Dumont  <fdumont@gcc.gnu.org>
 458
 459         * config/abi/pre/gnu-versioned-namespace.ver: Add missing symbols
 460         for _Float{16,32,64,128,32x,64x,128x}.
 461
 462 2023-10-04  Tom Tromey  <tromey@adacore.com>
 463
 464         * python/libstdcxx/v6/printers.py
 465         (StdExpAnyPrinter.__init__): Qualify call to
 466         _string_types.
 467
 468 2023-10-04  Tom Tromey  <tromey@adacore.com>
 469
 470         * python/libstdcxx/v6/printers.py: Assume that
 471         _versioned_namespace is non-None.
 472         * python/libstdcxx/v6/xmethods.py (is_specialization_of):
 473         Assume that _versioned_namespace is non-None.
 474
 475 2023-10-04  Tom Tromey  <tromey@adacore.com>
 476
 477         * python/libstdcxx/v6/xmethods.py (_versioned_namespace):
 478         Define.
 479
 480 2023-09-29  Dimitrij Mijoski  <dmjpp@hotmail.com>
 481
 482         PR libstdc++/108976
 483         * src/c++11/codecvt.cc (read_utf8_code_point): Fix handing of
 484         surrogates in UTF-8.
 485         (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-8.
 486         (ucs4_in): Fix handling of range with odd number of bytes.
 487         (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-16.
 488         (ucs2_out): Fix handling of surrogates in UCS-2 -> UTF-16.
 489         (ucs2_in): Fix handling of range with odd number of bytes.
 490         (__codecvt_utf16_base<char16_t>::do_in): Likewise.
 491         (__codecvt_utf16_base<char32_t>::do_in): Likewise.
 492         (__codecvt_utf16_base<wchar_t>::do_in): Likewise.
 493         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Renames, add
 494         tests for codecvt_utf16<char16_t> and codecvt_utf16<char32_t>.
 495         * testsuite/22_locale/codecvt/codecvt_unicode.h: Refactor UTF-8
 496         testing functions for char8_t, add more test cases for errors,
 497         add testing functions for codecvt_utf16.
 498         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc:
 499         Renames, add tests for codecvt_utf16<whchar_t>.
 500         * testsuite/22_locale/codecvt/codecvt_utf16/79980.cc (test06):
 501         Fix test.
 502         * testsuite/22_locale/codecvt/codecvt_unicode_char8_t.cc: New
 503         test.
 504
 505 2023-09-29  Nathaniel Shead  <nathanieloshead@gmail.com>
 506
 507         * include/bits/basic_string.h: (basic_string(basic_string&&)):
 508         Activate _M_local_buf when needed.
 509         (basic_string(basic_string&&, const _Alloc&)): Likewise.
 510         * include/bits/basic_string.tcc: (basic_string::swap): Likewise.
 511         * include/std/variant: (__detail::__variant::__construct_n): New.
 512         (__detail::__variant::__emplace): Use __construct_n.
 513
 514 2023-09-28  Tom Tromey  <tromey@adacore.com>
 515
 516         * python/libstdcxx/v6/printers.py (Printer.add_version)
 517         (add_one_template_type_printer)
 518         (FilteringTypePrinter.add_one_type_printer): Use Python
 519         "not in" operator.
 520
 521 2023-09-28  Tom Tromey  <tromey@adacore.com>
 522
 523         * python/libstdcxx/v6/printers.py (std_ratio_t_tuple):
 524         Remove.
 525
 526 2023-09-28  Tom Tromey  <tromey@adacore.com>
 527
 528         * python/libstdcxx/v6/printers.py
 529         (StdExpOptionalPrinter.__init__, lookup_node_type):
 530         Remove unused variables.
 531
 532 2023-09-28  Tom Tromey  <tromey@adacore.com>
 533
 534         * python/libstdcxx/v6/printers.py: Don't import 'os'.
 535         * python/libstdcxx/v6/__init__.py: Don't import 'gdb'.
 536
 537 2023-09-28  Tom Tromey  <tromey@adacore.com>
 538
 539         * python/libstdcxx/v6/printers.py: Use gdb.ValuePrinter
 540         everywhere.  Rename members to start with "_".
 541
 542 2023-09-28  Tom Tromey  <tromey@adacore.com>
 543
 544         * testsuite/lib/gdb-test.exp (gdb-test): Enable Python
 545         stack traces from gdb.
 546
 547 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
 548
 549         * python/libstdcxx/v6/xmethods.py (is_specialization_of): Define
 550         new function.
 551         (ArrayMethodsMatcher, DequeMethodsMatcher)
 552         (ForwardListMethodsMatcher, ListMethodsMatcher)
 553         (VectorMethodsMatcher, AssociativeContainerMethodsMatcher)
 554         (UniquePtrGetWorker, UniquePtrMethodsMatcher)
 555         (SharedPtrSubscriptWorker, SharedPtrMethodsMatcher): Use
 556         is_specialization_of instead of re.match.
 557
 558 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
 559
 560         * python/libstdcxx/v6/printers.py: Break long lines. Use raw
 561         strings for regular expressions. Add whitespace around
 562         operators.
 563         (is_member_of_namespace): Use isinstance to check type.
 564         (is_specialization_of): Likewise. Adjust template_name
 565         for versioned namespace instead of duplicating the re.match
 566         call.
 567         (StdExpAnyPrinter._string_types): New static method.
 568         (StdExpAnyPrinter.to_string): Use _string_types.
 569
 570 2023-09-28  Jonathan Wakely  <jwakely@redhat.com>
 571
 572         * python/libstdcxx/v6/printers.py: Format docstrings according
 573         to PEP 257.
 574         * python/libstdcxx/v6/xmethods.py: Likewise.
 575
 576 2023-09-28  Tim Song  <t.canens.cpp@gmail.com>
 577
 578         PR libstdc++/111050
 579         * include/bits/hashtable_policy.h
 580         (_Hash_node_value_base<>::_M_valptr(), _Hash_node_value_base<>::_M_v())
 581         Add [[__gnu__::__always_inline__]].
 582
 583 2023-09-27  Jonathan Wakely  <jwakely@redhat.com>
 584
 585         * python/libstdcxx/v6/printers.py (StdChronoTimeZoneRulePrinter):
 586         Fix incorrect number of replacement fields.
 587
 588 2023-09-26  Hans-Peter Nilsson  <hp@axis.com>
 589
 590         * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Add
 591         dg-require-thread-fence.
 592
 593 2023-09-25  Patrick Palka  <ppalka@redhat.com>
 594
 595         * include/std/charconv (__detail::__integer_to_chars_result_type):
 596         Remove.
 597         (__detail::__to_chars_16): Use to_chars_result as return type.
 598         (__detail::__to_chars_10): Likewise.
 599         (__detail::__to_chars_8): Likewise.
 600         (__detail::__to_chars_2): Likewise.
 601         (__detail::__to_chars_i): Likewise.
 602         (__detail::__integer_from_chars_result_type): Inline the
 603         constraint into ...
 604         (from_chars): ... here.  Use __is_standard_integer in the
 605         constraint.  Encode constraint as a defaulted non-type template
 606         parameter instead of within the return type.
 607
 608 2023-09-25  John David Anglin  <danglin@gcc.gnu.org>
 609
 610         * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
 611
 612 2023-09-25  Jonathan Wakely  <jwakely@redhat.com>
 613
 614         PR libstdc++/111511
 615         PR c++/111512
 616         * include/std/array (to_array): Cast memcpy arguments to void*.
 617         * testsuite/23_containers/array/creation/111512.cc: New test.
 618
 619 2023-09-25  Jonathan Wakely  <jwakely@redhat.com>
 620
 621         * include/bits/move.h (forward_list): Define for C++23.
 622         * include/bits/version.def (forward_like): Define.
 623         * include/bits/version.h: Regenerate.
 624         * include/std/utility (__glibcxx_want_forward_like): Define.
 625         * testsuite/20_util/forward_like/1.cc: New test.
 626         * testsuite/20_util/forward_like/2_neg.cc: New test.
 627         * testsuite/20_util/forward_like/version.cc: New test.
 628
 629 2023-09-19  Marek Polacek  <polacek@redhat.com>
 630
 631         * testsuite/20_util/allocator/105975.cc: Add dg-error.
 632
 633 2023-09-18  Patrick Palka  <ppalka@redhat.com>
 634
 635         PR c++/63198
 636         PR c++/18474
 637         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
 638         Make data member seed_seq::called mutable.
 639         * testsuite/26_numerics/random/independent_bits_engine/cons/seed_seq2.cc:
 640         Likewise.
 641         * testsuite/26_numerics/random/linear_congruential_engine/cons/seed_seq2.cc:
 642         Likewise.
 643         * testsuite/26_numerics/random/mersenne_twister_engine/cons/seed_seq2.cc:
 644         Likewise.
 645         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
 646         Likewise.
 647         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/seed_seq2.cc:
 648         Likewise.
 649         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/seed_seq2.cc:
 650         Likewise.
 651
 652 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
 653
 654         * doc/xml/manual/status_cxx2020.xml: Tweak P1466R3 status.
 655         * doc/html/manual/status.html: Regenerate.
 656
 657 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
 658
 659         * doc/xml/manual/configure.xml: Use conventional option name.
 660         * doc/xml/manual/status_cxx2020.xml: Update.
 661         * doc/xml/manual/status_cxx2023.xml: Update.
 662         * doc/html/*: Regenerate.
 663
 664 2023-09-18  Jonathan Wakely  <jwakely@redhat.com>
 665
 666         * doc/xml/manual/intro.xml: Clarify that building libstdc++
 667         separately from GCC is not supported.
 668         * doc/xml/manual/prerequisites.xml: Note msgfmt prerequisite for
 669         testing.
 670         * doc/html/manual/setup.html: Regenerate.
 671
 672 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 673
 674         * testsuite/29_atomics/atomic_ref/wait_notify.cc: Do not
 675         restrict to pthreads targets.
 676         * testsuite/30_threads/jthread/3.cc: Likewise.
 677         * testsuite/30_threads/semaphore/100806.cc: Likewise.
 678         * testsuite/30_threads/semaphore/try_acquire.cc: Likewise.
 679         * testsuite/30_threads/semaphore/try_acquire_for.cc: Likewise.
 680         * testsuite/30_threads/semaphore/try_acquire_posix.cc: Likewise.
 681
 682 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 683
 684         * testsuite/18_support/coroutines/95917.cc: Remove dg-options
 685         -std=gnu++2a.
 686         * testsuite/18_support/coroutines/hash.cc: Likewise.
 687         * testsuite/18_support/coroutines/lwg3460.cc: Likewise.
 688         * testsuite/18_support/destroying_delete.cc: Likewise.
 689         * testsuite/18_support/source_location/1.cc: Likewise.
 690         * testsuite/18_support/source_location/consteval.cc: Likewise.
 691         * testsuite/18_support/source_location/version.cc: Likewise.
 692         * testsuite/19_diagnostics/error_category/operators/three_way.cc:
 693         Likewise.
 694         * testsuite/19_diagnostics/error_code/operators/three_way.cc:
 695         Likewise.
 696         * testsuite/19_diagnostics/error_condition/operators/three_way.cc:
 697         Likewise.
 698         * testsuite/19_diagnostics/stacktrace/output.cc: Likewise.
 699         * testsuite/26_numerics/adjacent_difference/lwg2055.cc:
 700         Likewise.
 701         * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
 702         * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
 703         * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
 704         * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
 705         * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: Likewise.
 706         * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc:
 707         Likewise.
 708         * testsuite/28_regex/iterators/regex_iterator/lwg3719.cc:
 709         Likewise.
 710         * testsuite/28_regex/iterators/regex_token_iterator/lwg3719.cc:
 711         Likewise.
 712         * testsuite/28_regex/sub_match/compare_c++20.cc: Likewise.
 713         * testsuite/experimental/filesystem/iterators/106201.cc:
 714         Likewise.
 715         * testsuite/experimental/scopeguard/exit.cc: Likewise.
 716         * testsuite/experimental/scopeguard/uniqueres.cc: Likewise.
 717
 718 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 719
 720         * testsuite/30_threads/barrier/1.cc: Remove dg-options
 721         -std=gnu++20.
 722         * testsuite/30_threads/barrier/2.cc: Likewise.
 723         * testsuite/30_threads/barrier/arrive.cc: Likewise.
 724         * testsuite/30_threads/barrier/arrive_and_drop.cc: Likewise.
 725         * testsuite/30_threads/barrier/arrive_and_wait.cc: Likewise.
 726         * testsuite/30_threads/barrier/completion.cc: Likewise.
 727         * testsuite/30_threads/condition_variable/members/clock_neg.cc:
 728         Likewise.
 729         * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
 730         Likewise.
 731         * testsuite/30_threads/condition_variable_any/stop_token/1.cc:
 732         Likewise.
 733         * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
 734         Likewise.
 735         * testsuite/30_threads/future/members/clock_neg.cc: Likewise.
 736         * testsuite/30_threads/headers/stop_token/synopsis.cc: Likewise.
 737         * testsuite/30_threads/headers/thread/types_std_c++20.cc:
 738         Likewise.
 739         * testsuite/30_threads/jthread/1.cc: Likewise.
 740         * testsuite/30_threads/jthread/100612.cc: Likewise.
 741         * testsuite/30_threads/jthread/95989.cc: Likewise.
 742         * testsuite/30_threads/jthread/jthread.cc: Likewise.
 743         * testsuite/30_threads/jthread/version.cc: Likewise.
 744         * testsuite/30_threads/latch/1.cc: Likewise.
 745         * testsuite/30_threads/latch/2.cc: Likewise.
 746         * testsuite/30_threads/latch/3.cc: Likewise.
 747         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/clock_neg.cc:
 748         Likewise.
 749         * testsuite/30_threads/semaphore/1.cc: Likewise.
 750         * testsuite/30_threads/semaphore/2.cc: Likewise.
 751         * testsuite/30_threads/semaphore/least_max_value_neg.cc:
 752         Likewise.
 753         * testsuite/30_threads/semaphore/try_acquire_until.cc: Likewise.
 754         * testsuite/30_threads/shared_future/members/clock_neg.cc:
 755         Likewise.
 756         * testsuite/30_threads/shared_lock/locking/clock_neg.cc:
 757         Likewise.
 758         * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
 759         Likewise.
 760         * testsuite/30_threads/stop_token/1.cc: Likewise.
 761         * testsuite/30_threads/stop_token/2.cc: Likewise.
 762         * testsuite/30_threads/stop_token/stop_callback.cc: Likewise.
 763         * testsuite/30_threads/stop_token/stop_callback/deadlock.cc:
 764         Likewise.
 765         * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
 766         Likewise.
 767         * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc:
 768         Likewise.
 769         * testsuite/30_threads/stop_token/stop_callback/invoke.cc:
 770         Likewise.
 771         * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
 772         * testsuite/30_threads/stop_token/stop_source/assign.cc:
 773         Likewise.
 774         * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
 775         * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
 776         Likewise.
 777         * testsuite/30_threads/thread/id/operators_c++20.cc: Likewise.
 778         * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc:
 779         Likewise.
 780         * testsuite/30_threads/unique_lock/locking/clock_neg.cc:
 781         Likewise.
 782
 783 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 784
 785         * testsuite/27_io/basic_istream/extractors_character/char/lwg2499.cc:
 786         Remove dg-options -std=gnu++2a.
 787         * testsuite/27_io/basic_istream/extractors_character/char/lwg2499_neg.cc:
 788         Likewise.
 789         * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499.cc:
 790         Likewise.
 791         * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499_neg.cc:
 792         Likewise.
 793         * testsuite/27_io/basic_istringstream/cons/char/1.cc: Likewise.
 794         * testsuite/27_io/basic_istringstream/cons/wchar_t/1.cc:
 795         Likewise.
 796         * testsuite/27_io/basic_istringstream/str/char/2.cc: Likewise.
 797         * testsuite/27_io/basic_istringstream/str/wchar_t/2.cc:
 798         Likewise.
 799         * testsuite/27_io/basic_istringstream/view/char/1.cc: Likewise.
 800         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
 801         Likewise.
 802         * testsuite/27_io/basic_ostream/emit/1.cc: Likewise.
 803         * testsuite/27_io/basic_ostream/inserters_character/char/deleted.cc:
 804         Likewise.
 805         * testsuite/27_io/basic_ostream/inserters_character/wchar_t/deleted.cc:
 806         Likewise.
 807         * testsuite/27_io/basic_ostringstream/cons/char/1.cc: Likewise.
 808         * testsuite/27_io/basic_ostringstream/cons/wchar_t/1.cc:
 809         Likewise.
 810         * testsuite/27_io/basic_ostringstream/str/char/3.cc: Likewise.
 811         * testsuite/27_io/basic_ostringstream/str/wchar_t/3.cc:
 812         Likewise.
 813         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
 814         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
 815         Likewise.
 816         * testsuite/27_io/basic_stringbuf/cons/char/2.cc: Likewise.
 817         * testsuite/27_io/basic_stringbuf/cons/wchar_t/2.cc: Likewise.
 818         * testsuite/27_io/basic_stringbuf/str/char/4.cc: Likewise.
 819         * testsuite/27_io/basic_stringbuf/str/wchar_t/4.cc: Likewise.
 820         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
 821         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
 822         * testsuite/27_io/basic_stringstream/cons/char/1.cc: Likewise.
 823         * testsuite/27_io/basic_stringstream/cons/char/97719.cc:
 824         Likewise.
 825         * testsuite/27_io/basic_stringstream/cons/wchar_t/1.cc:
 826         Likewise.
 827         * testsuite/27_io/basic_stringstream/str/char/5.cc: Likewise.
 828         * testsuite/27_io/basic_stringstream/str/wchar_t/5.cc.cc:
 829         Likewise.
 830         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
 831         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
 832         Likewise.
 833         * testsuite/27_io/basic_syncbuf/1.cc: Likewise.
 834         * testsuite/27_io/basic_syncbuf/2.cc: Likewise.
 835         * testsuite/27_io/basic_syncbuf/basic_ops/1.cc: Likewise.
 836         * testsuite/27_io/basic_syncbuf/requirements/types.cc: Likewise.
 837         * testsuite/27_io/basic_syncbuf/sync_ops/1.cc: Likewise.
 838         * testsuite/27_io/basic_syncstream/1.cc: Likewise.
 839         * testsuite/27_io/basic_syncstream/2.cc: Likewise.
 840         * testsuite/27_io/basic_syncstream/basic_ops/1.cc: Likewise.
 841         * testsuite/27_io/basic_syncstream/requirements/types.cc:
 842         Likewise.
 843         * testsuite/27_io/filesystem/iterators/106201.cc: Likewise.
 844         * testsuite/27_io/filesystem/iterators/lwg3719.cc: Likewise.
 845         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc:
 846         Likewise.
 847         * testsuite/27_io/filesystem/path/nonmember/cmp_c++20.cc:
 848         Likewise.
 849
 850 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 851
 852         * testsuite/26_numerics/accumulate/constexpr.cc: Remove
 853         dg-options -std=gnu++2a.
 854         * testsuite/26_numerics/accumulate/lwg2055.cc: Likewise.
 855         * testsuite/26_numerics/adjacent_difference/constexpr.cc:
 856         Likewise.
 857         * testsuite/26_numerics/bit/bit.cast/105027.cc: Likewise.
 858         * testsuite/26_numerics/bit/bit.cast/bit_cast.cc: Likewise.
 859         * testsuite/26_numerics/bit/bit.cast/version.cc: Likewise.
 860         * testsuite/26_numerics/bit/bit.count/countl_one.cc: Likewise.
 861         * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc:
 862         Likewise.
 863         * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: Likewise.
 864         * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: Likewise.
 865         * testsuite/26_numerics/bit/bit.pow.two/lwg3656.cc: Likewise.
 866         * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
 867         * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
 868         * testsuite/26_numerics/bit/header-2.cc: Likewise.
 869         * testsuite/26_numerics/bit/header.cc: Likewise.
 870         * testsuite/26_numerics/complex/1.cc: Likewise.
 871         * testsuite/26_numerics/complex/2.cc: Likewise.
 872         * testsuite/26_numerics/complex/comparison_operators/more_constexpr.cc:
 873         Likewise.
 874         * testsuite/26_numerics/complex/operators/more_constexpr.cc:
 875         Likewise.
 876         * testsuite/26_numerics/complex/requirements/more_constexpr.cc:
 877         Likewise.
 878         * testsuite/26_numerics/complex/value_operations/more_constexpr.cc:
 879         Likewise.
 880         * testsuite/26_numerics/endian/1.cc: Likewise.
 881         * testsuite/26_numerics/endian/2.cc: Likewise.
 882         * testsuite/26_numerics/endian/3.cc: Likewise.
 883         * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
 884         * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
 885         * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
 886         * testsuite/26_numerics/inner_product/lwg2055.cc: Likewise.
 887         * testsuite/26_numerics/iota/constexpr.cc: Likewise.
 888         * testsuite/26_numerics/lerp/1.cc: Likewise.
 889         * testsuite/26_numerics/lerp/constexpr.cc: Likewise.
 890         * testsuite/26_numerics/lerp/version.cc: Likewise.
 891         * testsuite/26_numerics/midpoint/floating.cc: Likewise.
 892         * testsuite/26_numerics/midpoint/integral.cc: Likewise.
 893         * testsuite/26_numerics/midpoint/pointer.cc: Likewise.
 894         * testsuite/26_numerics/midpoint/pointer_neg.cc: Likewise.
 895         * testsuite/26_numerics/midpoint/version.cc: Likewise.
 896         * testsuite/26_numerics/numbers/1.cc: Likewise.
 897         * testsuite/26_numerics/numbers/2.cc: Likewise.
 898         * testsuite/26_numerics/numbers/3.cc: Likewise.
 899         * testsuite/26_numerics/numbers/float128.cc: Likewise.
 900         * testsuite/26_numerics/numbers/nonfloat_neg.cc: Likewise.
 901         * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
 902         * testsuite/26_numerics/partial_sum/lwg2055.cc: Likewise.
 903         * testsuite/26_numerics/random/concept.cc: Likewise.
 904         * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
 905         * testsuite/26_numerics/slice/compare.cc: Likewise.
 906         * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc:
 907         Likewise.
 908         * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc:
 909         Likewise.
 910         * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
 911
 912 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 913
 914         * testsuite/24_iterators/aliases.cc: Remove dg-options
 915         -std=gnu++2a.
 916         * testsuite/24_iterators/associated_types/incrementable.traits.cc:
 917         Likewise.
 918         * testsuite/24_iterators/associated_types/iterator.traits.cc:
 919         Likewise.
 920         * testsuite/24_iterators/associated_types/readable.traits.cc:
 921         Likewise.
 922         * testsuite/24_iterators/back_insert_iterator/constexpr.cc:
 923         Likewise.
 924         * testsuite/24_iterators/back_insert_iterator/pr93884.cc:
 925         Likewise.
 926         * testsuite/24_iterators/bidirectional/concept.cc: Likewise.
 927         * testsuite/24_iterators/common_iterator/1.cc: Likewise.
 928         * testsuite/24_iterators/common_iterator/100823.cc: Likewise.
 929         * testsuite/24_iterators/common_iterator/2.cc: Likewise.
 930         * testsuite/24_iterators/contiguous/concept.cc: Likewise.
 931         * testsuite/24_iterators/contiguous/tag.cc: Likewise.
 932         * testsuite/24_iterators/counted_iterator/1.cc: Likewise.
 933         * testsuite/24_iterators/counted_iterator/lwg3389.cc: Likewise.
 934         * testsuite/24_iterators/counted_iterator/lwg3643.cc: Likewise.
 935         * testsuite/24_iterators/customization_points/92894.cc:
 936         Likewise.
 937         * testsuite/24_iterators/customization_points/iter_move.cc:
 938         Likewise.
 939         * testsuite/24_iterators/customization_points/iter_swap.cc:
 940         Likewise.
 941         * testsuite/24_iterators/customization_points/lwg3420.cc:
 942         Likewise.
 943         * testsuite/24_iterators/forward/concept.cc: Likewise.
 944         * testsuite/24_iterators/front_insert_iterator/constexpr.cc:
 945         Likewise.
 946         * testsuite/24_iterators/front_insert_iterator/pr93884.cc:
 947         Likewise.
 948         * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
 949         Likewise.
 950         * testsuite/24_iterators/indirect_callable/92894.cc: Likewise.
 951         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
 952         Likewise.
 953         * testsuite/24_iterators/indirect_callable/projected.cc:
 954         Likewise.
 955         * testsuite/24_iterators/input/concept.cc: Likewise.
 956         * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
 957         * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
 958         Likewise.
 959         * testsuite/24_iterators/istream_iterator/sentinel.cc: Likewise.
 960         * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
 961         Likewise.
 962         * testsuite/24_iterators/istreambuf_iterator/sentinel.cc:
 963         Likewise.
 964         * testsuite/24_iterators/move_iterator/cust.cc: Likewise.
 965         * testsuite/24_iterators/move_iterator/dr3435.cc: Likewise.
 966         * testsuite/24_iterators/move_iterator/input_iterator.cc:
 967         Likewise.
 968         * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
 969         * testsuite/24_iterators/move_iterator/lwg3391.cc: Likewise.
 970         * testsuite/24_iterators/move_iterator/move_only.cc: Likewise.
 971         * testsuite/24_iterators/move_iterator/p2520r0.cc: Likewise.
 972         * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
 973         Likewise.
 974         * testsuite/24_iterators/move_iterator/sentinel.cc: Likewise.
 975         * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: Likewise.
 976         * testsuite/24_iterators/output/concept.cc: Likewise.
 977         * testsuite/24_iterators/random_access/concept.cc: Likewise.
 978         * testsuite/24_iterators/range_access/range_access_cpp20.cc:
 979         Likewise.
 980         * testsuite/24_iterators/range_access/range_access_cpp20_neg.cc:
 981         Likewise.
 982         * testsuite/24_iterators/range_operations/100768.cc: Likewise.
 983         * testsuite/24_iterators/range_operations/advance.cc: Likewise.
 984         * testsuite/24_iterators/range_operations/advance_overflow.cc:
 985         Likewise.
 986         * testsuite/24_iterators/range_operations/distance.cc: Likewise.
 987         * testsuite/24_iterators/range_operations/lwg3392.cc: Likewise.
 988         * testsuite/24_iterators/range_operations/next.cc: Likewise.
 989         * testsuite/24_iterators/range_operations/prev.cc: Likewise.
 990         * testsuite/24_iterators/reverse_iterator/cust.cc: Likewise.
 991         * testsuite/24_iterators/reverse_iterator/dr3435.cc: Likewise.
 992         * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
 993         Likewise.
 994
 995 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
 996
 997         * testsuite/23_containers/array/comparison_operators/96851.cc:
 998         Remove dg-options -std=gnu++2a.
 999         * testsuite/23_containers/array/comparison_operators/constexpr.cc:
1000         Likewise.
1001         * testsuite/23_containers/array/creation/1.cc: Likewise.
1002         * testsuite/23_containers/array/creation/110167.cc: Likewise.
1003         * testsuite/23_containers/array/creation/2.cc: Likewise.
1004         * testsuite/23_containers/array/creation/3_neg.cc: Likewise.
1005         * testsuite/23_containers/array/requirements/constexpr_fill.cc:
1006         Likewise.
1007         * testsuite/23_containers/array/requirements/constexpr_swap.cc:
1008         Likewise.
1009         * testsuite/23_containers/deque/48101-3_neg.cc: Likewise.
1010         * testsuite/23_containers/deque/erasure.cc: Likewise.
1011         * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
1012         Likewise.
1013         * testsuite/23_containers/deque/operators/cmp_c++20.cc:
1014         Likewise.
1015         * testsuite/23_containers/forward_list/48101-3_neg.cc: Likewise.
1016         * testsuite/23_containers/forward_list/cmp_c++20.cc: Likewise.
1017         * testsuite/23_containers/forward_list/erasure.cc: Likewise.
1018         * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
1019         Likewise.
1020         * testsuite/23_containers/forward_list/operations/remove_cxx20_return.cc:
1021         Likewise.
1022         * testsuite/23_containers/forward_list/operations/unique_cxx20_return.cc:
1023         Likewise.
1024         * testsuite/23_containers/list/48101-3_neg.cc: Likewise.
1025         * testsuite/23_containers/list/cmp_c++20.cc: Likewise.
1026         * testsuite/23_containers/list/erasure.cc: Likewise.
1027         * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
1028         Likewise.
1029         * testsuite/23_containers/list/operations/remove_cxx20_return.cc:
1030         Likewise.
1031         * testsuite/23_containers/list/operations/unique_cxx20_return.cc:
1032         Likewise.
1033         * testsuite/23_containers/map/48101-3_neg.cc: Likewise.
1034         * testsuite/23_containers/map/erasure.cc: Likewise.
1035         * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
1036         Likewise.
1037         * testsuite/23_containers/map/operations/contains.cc: Likewise.
1038         * testsuite/23_containers/map/operators/cmp_c++20.cc: Likewise.
1039         * testsuite/23_containers/multimap/48101-3_neg.cc: Likewise.
1040         * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
1041         Likewise.
1042         * testsuite/23_containers/multimap/operations/contains.cc:
1043         Likewise.
1044         * testsuite/23_containers/multimap/operators/cmp_c++20.cc:
1045         Likewise.
1046         * testsuite/23_containers/multiset/48101-3_neg.cc: Likewise.
1047         * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
1048         Likewise.
1049         * testsuite/23_containers/multiset/operations/contains.cc:
1050         Likewise.
1051         * testsuite/23_containers/multiset/operators/cmp_c++20.cc:
1052         Likewise.
1053         * testsuite/23_containers/priority_queue/92878_92947.cc:
1054         Likewise.
1055         * testsuite/23_containers/queue/92878_92947.cc: Likewise.
1056         * testsuite/23_containers/queue/cmp_c++20.cc: Likewise.
1057         * testsuite/23_containers/set/48101-3_neg.cc: Likewise.
1058         * testsuite/23_containers/set/erasure.cc: Likewise.
1059         * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
1060         Likewise.
1061         * testsuite/23_containers/set/operations/contains.cc: Likewise.
1062         * testsuite/23_containers/set/operators/cmp_c++20.cc: Likewise.
1063         * testsuite/23_containers/span/1.cc: Likewise.
1064         * testsuite/23_containers/span/101411.cc: Likewise.
1065         * testsuite/23_containers/span/2.cc: Likewise.
1066         * testsuite/23_containers/span/deduction.cc: Likewise.
1067         * testsuite/23_containers/span/explicit.cc: Likewise.
1068         * testsuite/23_containers/span/layout_compat.cc: Likewise.
1069         * testsuite/23_containers/span/lwg3255.cc: Likewise.
1070         * testsuite/23_containers/span/nothrow_cons.cc: Likewise.
1071         * testsuite/23_containers/span/trivially_copyable.cc: Likewise.
1072         * testsuite/23_containers/stack/92878_92947.cc: Likewise.
1073         * testsuite/23_containers/stack/cmp_c++20.cc: Likewise.
1074         * testsuite/23_containers/unordered_map/48101-3_neg.cc:
1075         Likewise.
1076         * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
1077         * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
1078         Likewise.
1079         * testsuite/23_containers/unordered_map/operations/1.cc:
1080         Likewise.
1081         * testsuite/23_containers/unordered_map/operations/contains.cc:
1082         Likewise.
1083         * testsuite/23_containers/unordered_multimap/48101-3_neg.cc:
1084         Likewise.
1085         * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
1086         Likewise.
1087         * testsuite/23_containers/unordered_multimap/operations/1.cc:
1088         Likewise.
1089         * testsuite/23_containers/unordered_multimap/operations/contains.cc:
1090         Likewise.
1091         * testsuite/23_containers/unordered_multiset/48101-3_neg.cc:
1092         Likewise.
1093         * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
1094         Likewise.
1095         * testsuite/23_containers/unordered_multiset/operations/1.cc:
1096         Likewise.
1097         * testsuite/23_containers/unordered_multiset/operations/contains.cc:
1098         Likewise.
1099         * testsuite/23_containers/unordered_set/48101-3_neg.cc:
1100         Likewise.
1101         * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
1102         * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
1103         Likewise.
1104         * testsuite/23_containers/unordered_set/operations/1.cc:
1105         Likewise.
1106         * testsuite/23_containers/unordered_set/operations/contains.cc:
1107         Likewise.
1108         * testsuite/23_containers/vector/48101-3_neg.cc: Likewise.
1109         * testsuite/23_containers/vector/bool/capacity/constexpr.cc:
1110         Likewise.
1111         * testsuite/23_containers/vector/bool/cmp_c++20.cc: Likewise.
1112         * testsuite/23_containers/vector/bool/cons/constexpr.cc:
1113         Likewise.
1114         * testsuite/23_containers/vector/bool/element_access/constexpr.cc:
1115         Likewise.
1116         * testsuite/23_containers/vector/bool/iterator_c++20.cc:
1117         Likewise.
1118         * testsuite/23_containers/vector/bool/modifiers/assign/constexpr.cc:
1119         Likewise.
1120         * testsuite/23_containers/vector/bool/modifiers/constexpr.cc:
1121         Likewise.
1122         * testsuite/23_containers/vector/bool/modifiers/swap/constexpr.cc:
1123         Likewise.
1124         * testsuite/23_containers/vector/capacity/constexpr.cc:
1125         Likewise.
1126         * testsuite/23_containers/vector/cmp_c++20.cc: Likewise.
1127         * testsuite/23_containers/vector/cons/constexpr.cc: Likewise.
1128         * testsuite/23_containers/vector/data_access/constexpr.cc:
1129         Likewise.
1130         * testsuite/23_containers/vector/element_access/constexpr.cc:
1131         Likewise.
1132         * testsuite/23_containers/vector/erasure.cc: Likewise.
1133         * testsuite/23_containers/vector/modifiers/assign/constexpr.cc:
1134         Likewise.
1135         * testsuite/23_containers/vector/modifiers/constexpr.cc:
1136         Likewise.
1137         * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
1138         Likewise.
1139         * testsuite/23_containers/vector/modifiers/swap/constexpr.cc:
1140         Likewise.
1141         * testsuite/23_containers/vector/requirements/version.cc:
1142         Likewise.
1143
1144 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1145
1146         * testsuite/21_strings/basic_string/cons/char/105995.cc: Remove
1147         dg-options -std=gnu++20.
1148         * testsuite/21_strings/basic_string/cons/char/constexpr.cc:
1149         Likewise.
1150         * testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc:
1151         Likewise.
1152         * testsuite/21_strings/basic_string/erasure.cc: Likewise.
1153         * testsuite/21_strings/basic_string/hash/hash_char8_t.cc:
1154         Likewise.
1155         * testsuite/21_strings/basic_string/literals/constexpr.cc:
1156         Likewise.
1157         * testsuite/21_strings/basic_string/modifiers/constexpr.cc:
1158         Likewise.
1159         * testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc:
1160         Likewise.
1161         * testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc:
1162         Likewise.
1163         * testsuite/21_strings/basic_string/operations/ends_with/char.cc:
1164         Likewise.
1165         * testsuite/21_strings/basic_string/operations/ends_with/nonnull.cc:
1166         Likewise.
1167         * testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc:
1168         Likewise.
1169         * testsuite/21_strings/basic_string/operations/starts_with/char.cc:
1170         Likewise.
1171         * testsuite/21_strings/basic_string/operations/starts_with/nonnull.cc:
1172         Likewise.
1173         * testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc:
1174         Likewise.
1175         * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc:
1176         Likewise.
1177         * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
1178         Likewise.
1179         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
1180         Likewise.
1181         * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
1182         Likewise.
1183         * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/constexpr.cc:
1184         Likewise.
1185         * testsuite/21_strings/basic_string_view/operations/ends_with/char.cc:
1186         Likewise.
1187         * testsuite/21_strings/basic_string_view/operations/ends_with/nonnull.cc:
1188         Likewise.
1189         * testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc:
1190         Likewise.
1191         * testsuite/21_strings/basic_string_view/operations/starts_with/char.cc:
1192         Likewise.
1193         * testsuite/21_strings/basic_string_view/operations/starts_with/nonnull.cc:
1194         Likewise.
1195         * testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc:
1196         Likewise.
1197         * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
1198         Likewise.
1199         * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
1200         Likewise.
1201         * testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc:
1202         Likewise.
1203         * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
1204         Likewise.
1205
1206 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1207
1208         * testsuite/20_util/allocator/105975.cc: Remove dg-options
1209         -std=gnu++2a.
1210         * testsuite/20_util/allocator/rebind_c++20.cc: Likewise.
1211         * testsuite/20_util/allocator/requirements/constexpr.cc:
1212         Likewise.
1213         * testsuite/20_util/allocator/requirements/typedefs_c++20.cc:
1214         Likewise.
1215         * testsuite/20_util/allocator_traits/header-2.cc: Likewise.
1216         * testsuite/20_util/allocator_traits/header.cc: Likewise.
1217         * testsuite/20_util/allocator_traits/members/92878_92947.cc:
1218         Likewise.
1219         * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
1220         * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
1221         * testsuite/20_util/assume_aligned/1.cc: Likewise.
1222         * testsuite/20_util/assume_aligned/2_neg.cc: Likewise.
1223         * testsuite/20_util/assume_aligned/3.cc: Likewise.
1224         * testsuite/20_util/assume_aligned/97132.cc: Likewise.
1225         * testsuite/20_util/bind/constexpr.cc: Likewise.
1226         * testsuite/20_util/bitset/operations/96303.cc: Likewise.
1227         * testsuite/20_util/common_reference/100894.cc: Likewise.
1228         * testsuite/20_util/common_reference/requirements/alias_decl.cc:
1229         Likewise.
1230         * testsuite/20_util/common_reference/requirements/explicit_instantiation.cc:
1231         Likewise.
1232         * testsuite/20_util/common_reference/requirements/typedefs.cc:
1233         Likewise.
1234         * testsuite/20_util/duration/comparison_operators/three_way.cc:
1235         Likewise.
1236         * testsuite/20_util/exchange/constexpr.cc: Likewise.
1237         * testsuite/20_util/exchange/noexcept.cc: Likewise.
1238         * testsuite/20_util/from_chars/1_c++20_neg.cc: Likewise.
1239         * testsuite/20_util/from_chars/compare.cc: Likewise.
1240         * testsuite/20_util/function_objects/bind_front/1.cc: Likewise.
1241         * testsuite/20_util/function_objects/bind_front/107784.cc:
1242         Likewise.
1243         * testsuite/20_util/function_objects/bind_front/111327.cc:
1244         Likewise.
1245         * testsuite/20_util/function_objects/bind_front/2.cc: Likewise.
1246         * testsuite/20_util/function_objects/bind_front/97101.cc:
1247         Likewise.
1248         * testsuite/20_util/function_objects/bind_front/constexpr.cc:
1249         Likewise.
1250         * testsuite/20_util/function_objects/constexpr_searcher.cc:
1251         Likewise.
1252         * testsuite/20_util/function_objects/identity/1.cc: Likewise.
1253         * testsuite/20_util/function_objects/invoke/constexpr.cc:
1254         Likewise.
1255         * testsuite/20_util/function_objects/mem_fn/constexpr.cc:
1256         Likewise.
1257         * testsuite/20_util/function_objects/not_fn/constexpr.cc:
1258         Likewise.
1259         * testsuite/20_util/integer_comparisons/1.cc: Likewise.
1260         * testsuite/20_util/integer_comparisons/2.cc: Likewise.
1261         * testsuite/20_util/integer_comparisons/equal.cc: Likewise.
1262         * testsuite/20_util/integer_comparisons/equal_neg.cc: Likewise.
1263         * testsuite/20_util/integer_comparisons/greater.cc: Likewise.
1264         * testsuite/20_util/integer_comparisons/greater_equal.cc:
1265         Likewise.
1266         * testsuite/20_util/integer_comparisons/greater_equal_neg.cc:
1267         Likewise.
1268         * testsuite/20_util/integer_comparisons/greater_neg.cc:
1269         Likewise.
1270         * testsuite/20_util/integer_comparisons/in_range.cc: Likewise.
1271         * testsuite/20_util/integer_comparisons/in_range_neg.cc:
1272         Likewise.
1273         * testsuite/20_util/integer_comparisons/less.cc: Likewise.
1274         * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
1275         * testsuite/20_util/integer_comparisons/less_equal_neg.cc:
1276         Likewise.
1277         * testsuite/20_util/integer_comparisons/less_neg.cc: Likewise.
1278         * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
1279         * testsuite/20_util/integer_comparisons/not_equal_neg.cc:
1280         Likewise.
1281         * testsuite/20_util/is_bounded_array/requirements/explicit_instantiation.cc:
1282         Likewise.
1283         * testsuite/20_util/is_bounded_array/requirements/typedefs.cc:
1284         Likewise.
1285         * testsuite/20_util/is_bounded_array/value.cc: Likewise.
1286         * testsuite/20_util/is_constant_evaluated/1.cc: Likewise.
1287         * testsuite/20_util/is_constant_evaluated/noexcept.cc: Likewise.
1288         * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
1289         * testsuite/20_util/is_layout_compatible/is_corresponding_member.cc:
1290         Likewise.
1291         * testsuite/20_util/is_layout_compatible/value.cc: Likewise.
1292         * testsuite/20_util/is_layout_compatible/version.cc: Likewise.
1293         * testsuite/20_util/is_nothrow_constructible/value_c++20.cc:
1294         Likewise.
1295         * testsuite/20_util/is_nothrow_convertible/requirements/explicit_instantiation.cc:
1296         Likewise.
1297         * testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
1298         Likewise.
1299         * testsuite/20_util/is_nothrow_convertible/value.cc: Likewise.
1300         * testsuite/20_util/is_pod/deprecated-2a.cc: Likewise.
1301         * testsuite/20_util/is_pointer_interconvertible/value.cc:
1302         Likewise.
1303         * testsuite/20_util/is_pointer_interconvertible/version.cc:
1304         Likewise.
1305         * testsuite/20_util/is_pointer_interconvertible/with_class.cc:
1306         Likewise.
1307         * testsuite/20_util/is_unbounded_array/requirements/explicit_instantiation.cc:
1308         Likewise.
1309         * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc:
1310         Likewise.
1311         * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
1312         * testsuite/20_util/optional/assignment/92878_92947.cc:
1313         Likewise.
1314         * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
1315         * testsuite/20_util/optional/constexpr/assign.cc: Likewise.
1316         * testsuite/20_util/optional/constexpr/cons/conv.cc: Likewise.
1317         * testsuite/20_util/optional/constexpr/modifiers.cc: Likewise.
1318         * testsuite/20_util/optional/constexpr/swap.cc: Likewise.
1319         * testsuite/20_util/optional/relops/96269.cc: Likewise.
1320         * testsuite/20_util/optional/relops/three_way.cc: Likewise.
1321         * testsuite/20_util/pair/comparison_operators/constexpr_c++20.cc:
1322         Likewise.
1323         * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
1324         * testsuite/20_util/pair/constexpr_assign.cc: Likewise.
1325         * testsuite/20_util/pair/constexpr_swap.cc: Likewise.
1326         * testsuite/20_util/pair/requirements/structural.cc: Likewise.
1327         * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc:
1328         Likewise.
1329         * testsuite/20_util/polymorphic_allocator/allocate_object.cc:
1330         Likewise.
1331         * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc:
1332         Likewise.
1333         * testsuite/20_util/polymorphic_allocator/lwg3237.cc: Likewise.
1334         * testsuite/20_util/reference_wrapper/constexpr.cc: Likewise.
1335         * testsuite/20_util/reference_wrapper/incomplete.cc: Likewise.
1336         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc:
1337         Likewise.
1338         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
1339         Likewise.
1340         * testsuite/20_util/remove_cvref/value.cc: Likewise.
1341         * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc:
1342         Likewise.
1343         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
1344         Likewise.
1345         * testsuite/20_util/shared_ptr/casts/rval.cc: Likewise.
1346         * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc:
1347         Likewise.
1348         * testsuite/20_util/shared_ptr/cons/alias-rval.cc: Likewise.
1349         * testsuite/20_util/shared_ptr/creation/92878_92947.cc:
1350         Likewise.
1351         * testsuite/20_util/shared_ptr/creation/array.cc: Likewise.
1352         * testsuite/20_util/shared_ptr/creation/overwrite.cc: Likewise.
1353         * testsuite/20_util/shared_ptr/creation/version.cc: Likewise.
1354         * testsuite/20_util/time_point/4.cc: Likewise.
1355         * testsuite/20_util/time_point/comparison_operators/three_way.cc:
1356         Likewise.
1357         * testsuite/20_util/to_address/1.cc: Likewise.
1358         * testsuite/20_util/to_address/1_neg.cc: Likewise.
1359         * testsuite/20_util/to_address/debug.cc: Likewise.
1360         * testsuite/20_util/to_address/lwg3545.cc: Likewise.
1361         * testsuite/20_util/to_chars/compare.cc: Likewise.
1362         * testsuite/20_util/tuple/comparison_operators/three_way.cc:
1363         Likewise.
1364         * testsuite/20_util/tuple/cons/102270.cc: Likewise.
1365         * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc:
1366         Likewise.
1367         * testsuite/20_util/tuple/constexpr_swap.cc: Likewise.
1368         * testsuite/20_util/type_identity/requirements/alias_decl.cc:
1369         Likewise.
1370         * testsuite/20_util/type_identity/requirements/explicit_instantiation.cc:
1371         Likewise.
1372         * testsuite/20_util/type_identity/requirements/typedefs.cc:
1373         Likewise.
1374         * testsuite/20_util/typeindex/comparison_operators_c++20.cc:
1375         Likewise.
1376         * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc:
1377         Likewise.
1378         * testsuite/20_util/unique_ptr/creation/92878_92947.cc:
1379         Likewise.
1380         * testsuite/20_util/unique_ptr/creation/for_overwrite.cc:
1381         Likewise.
1382         * testsuite/20_util/unique_ptr/creation/for_overwrite__neg.cc:
1383         Likewise.
1384         * testsuite/20_util/unique_ptr/io/lwg2948.cc: Likewise.
1385         * testsuite/20_util/unwrap_reference/1.cc: Likewise.
1386         * testsuite/20_util/unwrap_reference/2.cc: Likewise.
1387         * testsuite/20_util/unwrap_reference/3.cc: Likewise.
1388         * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
1389         * testsuite/20_util/uses_allocator/lwg3527.cc: Likewise.
1390         * testsuite/20_util/uses_allocator/make_obj.cc: Likewise.
1391         * testsuite/20_util/uses_allocator/uninitialized_construct.cc:
1392         Likewise.
1393         * testsuite/20_util/variant/92878_92947.cc: Likewise.
1394         * testsuite/20_util/variant/95915.cc: Likewise.
1395         * testsuite/20_util/variant/constexpr.cc: Likewise.
1396         * testsuite/20_util/variant/relops/three_way.cc: Likewise.
1397         * testsuite/20_util/variant/visit_neg.cc: Likewise.
1398         * testsuite/20_util/variant/visit_r.cc: Likewise.
1399         * testsuite/20_util/weak_ptr/atomic_weak_ptr.cc: Likewise.
1400
1401 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1402
1403         * testsuite/18_support/comparisons/algorithms/fallback.cc:
1404         Remove dg-options -std=gnu++2a.
1405         * testsuite/18_support/comparisons/algorithms/partial_order.cc:
1406         Likewise.
1407         * testsuite/18_support/comparisons/algorithms/strong_order.cc:
1408         Likewise.
1409         * testsuite/18_support/comparisons/algorithms/strong_order_floats.cc:
1410         Likewise.
1411         * testsuite/18_support/comparisons/algorithms/weak_order.cc:
1412         Likewise.
1413         * testsuite/18_support/comparisons/categories/94565.cc:
1414         Likewise.
1415         * testsuite/18_support/comparisons/categories/partialord.cc:
1416         Likewise.
1417         * testsuite/18_support/comparisons/categories/strongord.cc:
1418         Likewise.
1419         * testsuite/18_support/comparisons/categories/weakord.cc:
1420         Likewise.
1421         * testsuite/18_support/comparisons/categories/zero_neg.cc:
1422         Likewise.
1423         * testsuite/18_support/comparisons/common/1.cc: Likewise.
1424         * testsuite/18_support/comparisons/object/93479.cc: Likewise.
1425         * testsuite/18_support/comparisons/object/lwg3530.cc: Likewise.
1426
1427 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1428
1429         * testsuite/29_atomics/atomic/compare_exchange_padding.cc:
1430         Remove dg-options -std=gnu++2a.
1431         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
1432         * testsuite/29_atomics/atomic/lock_free_aliases.cc: Likewise.
1433         * testsuite/29_atomics/atomic/requirements/types_neg.cc:
1434         Likewise.
1435         * testsuite/29_atomics/atomic/wait_notify/1.cc: Likewise.
1436         * testsuite/29_atomics/atomic/wait_notify/100334.cc: Likewise.
1437         * testsuite/29_atomics/atomic/wait_notify/102994.cc: Likewise.
1438         * testsuite/29_atomics/atomic/wait_notify/2.cc: Likewise.
1439         * testsuite/29_atomics/atomic/wait_notify/bool.cc: Likewise.
1440         * testsuite/29_atomics/atomic/wait_notify/generic.cc: Likewise.
1441         * testsuite/29_atomics/atomic/wait_notify/pointers.cc: Likewise.
1442         * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Likewise.
1443         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Likewise.
1444         * testsuite/29_atomics/atomic_flag/test/implicit.cc: Likewise.
1445         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc: Likewise.
1446         * testsuite/29_atomics/atomic_float/1.cc: Likewise.
1447         * testsuite/29_atomics/atomic_float/95282.cc: Likewise.
1448         * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
1449         * testsuite/29_atomics/atomic_float/value_init.cc: Likewise.
1450         * testsuite/29_atomics/atomic_float/wait_notify.cc: Likewise.
1451         * testsuite/29_atomics/atomic_integral/cons/value_init.cc:
1452         Likewise.
1453         * testsuite/29_atomics/atomic_integral/wait_notify.cc: Likewise.
1454         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc:
1455         Likewise.
1456         * testsuite/29_atomics/atomic_ref/deduction.cc: Likewise.
1457         * testsuite/29_atomics/atomic_ref/float.cc: Likewise.
1458         * testsuite/29_atomics/atomic_ref/generic.cc: Likewise.
1459         * testsuite/29_atomics/atomic_ref/integral.cc: Likewise.
1460         * testsuite/29_atomics/atomic_ref/pointer.cc: Likewise.
1461         * testsuite/29_atomics/atomic_ref/requirements.cc: Likewise.
1462         * testsuite/29_atomics/headers/atomic/types_std_c++20.cc:
1463         Likewise.
1464         * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc:
1465         Likewise.
1466         * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc:
1467         Likewise.
1468         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc:
1469         Likewise.
1470
1471 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1472
1473         * testsuite/27_io/basic_filebuf/native_handle/char/1.cc: New test.
1474         * testsuite/27_io/basic_filebuf/native_handle/wchar_t/1.cc: New test.
1475
1476 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1477
1478         * acinclude.m4 (GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES): New
1479         macro.
1480         * config.h.in: Regenerate.
1481         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export new
1482         basic_filebuf members.
1483         * config/io/basic_file_stdio.cc (__basic_file::native_handle):
1484         Define new function.
1485         * config/io/basic_file_stdio.h (__basic_file::native_handle):
1486         Declare new function.
1487         * configure: Regenerate.
1488         * configure.ac: Use GLIBCXX_CHECK_FILEBUF_NATIVE_HANDLES.
1489         * include/bits/version.def (fstream_native_handles): New macro.
1490         * include/bits/version.h: Regenerate.
1491         * include/std/fstream (basic_filebuf::native_handle)
1492         (basic_fstream::native_handle, basic_ifstream::native_handle)
1493         (basic_ofstream::native_handle): New functions.
1494         * src/c++11/Makefile.am: Move compilation of basic_file.cc,
1495         locale_init.cc and localename.cc to here.
1496         * src/c++11/Makefile.in: Regenerate.
1497         * src/c++98/locale_init.cc: Moved to...
1498         * src/c++11/locale_init.cc: ...here.
1499         * src/c++98/localename.cc: Moved to...
1500         * src/c++11/localename.cc: ...here.
1501         * src/c++98/Makefile.am: Remove basic_file.cc, locale_init.cc
1502         and localename.cc from here.
1503         * src/c++98/Makefile.in: Regenerate.
1504         * testsuite/27_io/basic_filebuf/native_handle/version.cc: New test.
1505         * testsuite/27_io/basic_fstream/native_handle/char/1.cc: New test.
1506         * testsuite/27_io/basic_fstream/native_handle/wchar_t/1.cc: New test.
1507         * testsuite/27_io/basic_ifstream/native_handle/char/1.cc: New test.
1508         * testsuite/27_io/basic_ifstream/native_handle/wchar_t/1.cc: New test.
1509         * testsuite/27_io/basic_ofstream/native_handle/char/1.cc: New test.
1510         * testsuite/27_io/basic_ofstream/native_handle/wchar_t/1.cc: New test.
1511
1512 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1513
1514         * testsuite/libstdc++-dg/conformance.exp: Add log line when
1515         using testsuite_files.
1516
1517 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1518
1519         * testsuite/20_util/shared_ptr/atomic/3.cc: Simplify dg
1520         directives.
1521         * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
1522         Likewise.
1523         * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc:
1524         Likewise.
1525         * testsuite/20_util/synchronized_pool_resource/allocate.cc:
1526         Likewise.
1527         * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
1528         Likewise.
1529         * testsuite/20_util/synchronized_pool_resource/cons.cc:
1530         Likewise.
1531         * testsuite/20_util/synchronized_pool_resource/cons_single.cc:
1532         Likewise.
1533         * testsuite/20_util/synchronized_pool_resource/is_equal.cc:
1534         Likewise.
1535         * testsuite/20_util/synchronized_pool_resource/multithreaded.cc:
1536         Likewise.
1537         * testsuite/20_util/synchronized_pool_resource/options.cc:
1538         Likewise.
1539         * testsuite/20_util/synchronized_pool_resource/release.cc:
1540         Likewise.
1541         * testsuite/20_util/synchronized_pool_resource/release_single.cc:
1542         Likewise.
1543         * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
1544         Likewise.
1545         * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
1546         Likewise.
1547         * testsuite/30_threads/stop_token/stop_callback/destroy.cc:
1548         Likewise.
1549
1550 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1551
1552         * testsuite/23_containers/span/back_assert_neg.cc: Remove
1553         dg-options and add effective target selector to dg-do. Add
1554         no_pch.
1555         * testsuite/23_containers/span/back_neg.cc: Likewise.
1556         * testsuite/23_containers/span/cons_1_assert_neg.cc: Likewise.
1557         * testsuite/23_containers/span/cons_2_assert_neg.cc: Likewise.
1558         * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1559         * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1560         * testsuite/23_containers/span/first_neg.cc: Likewise.
1561         * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1562         * testsuite/23_containers/span/front_neg.cc: Likewise.
1563         * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1564         * testsuite/23_containers/span/index_op_neg.cc: Likewise.
1565         * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1566         * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1567         * testsuite/23_containers/span/last_neg.cc: Likewise.
1568         * testsuite/23_containers/span/subspan_2_assert_neg.cc:
1569         Likewise.
1570         * testsuite/23_containers/span/subspan_3_assert_neg.cc:
1571         Likewise.
1572         * testsuite/23_containers/span/subspan_4_assert_neg.cc:
1573         Likewise.
1574         * testsuite/23_containers/span/subspan_5_assert_neg.cc:
1575         Likewise.
1576         * testsuite/23_containers/span/subspan_6_assert_neg.cc:
1577         Likewise.
1578         * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1579         * testsuite/23_containers/span/subspan_neg.cc: Likewise.
1580         * testsuite/24_iterators/range_operations/advance_debug_neg.cc:
1581         Likewise.
1582
1583 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1584
1585         * testsuite/18_support/headers/limits/synopsis_cxx23.cc: Remove
1586         dg-options.
1587         * testsuite/18_support/headers/stdfloat/types_std.cc: Likewise.
1588         * testsuite/18_support/type_info/constexpr.cc: Likewise.
1589         * testsuite/19_diagnostics/stacktrace/current.cc: Likewise.
1590         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
1591         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
1592         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Likewise.
1593         * testsuite/19_diagnostics/stacktrace/version.cc: Likewise.
1594         * testsuite/20_util/aligned_storage/deprecated-2b.cc: Likewise.
1595         * testsuite/20_util/aligned_union/deprecated-2b.cc: Likewise.
1596         * testsuite/20_util/bitset/access/constexpr.cc: Likewise.
1597         * testsuite/20_util/bitset/cons/constexpr_c++23.cc: Likewise.
1598         * testsuite/20_util/bitset/count/constexpr.cc: Likewise.
1599         * testsuite/20_util/bitset/ext/constexpr.cc: Likewise.
1600         * testsuite/20_util/bitset/operations/constexpr_c++23.cc:
1601         Likewise.
1602         * testsuite/20_util/bitset/version.cc: Likewise.
1603         * testsuite/20_util/from_chars/8.cc: Likewise.
1604         * testsuite/20_util/from_chars/constexpr.cc: Likewise.
1605         * testsuite/20_util/function/cons/deduction_c++23.cc: Likewise.
1606         * testsuite/20_util/function_objects/invoke/4.cc: Likewise.
1607         * testsuite/20_util/function_objects/invoke/dangling_ref.cc:
1608         Likewise.
1609         * testsuite/20_util/is_scoped_enum/value.cc: Likewise.
1610         * testsuite/20_util/is_scoped_enum/version.cc: Likewise.
1611         * testsuite/20_util/move_only_function/call.cc: Likewise.
1612         * testsuite/20_util/move_only_function/cons.cc: Likewise.
1613         * testsuite/20_util/move_only_function/move.cc: Likewise.
1614         * testsuite/20_util/move_only_function/version.cc: Likewise.
1615         * testsuite/20_util/optional/monadic/and_then.cc: Likewise.
1616         * testsuite/20_util/optional/monadic/or_else.cc: Likewise.
1617         * testsuite/20_util/optional/monadic/or_else_neg.cc: Likewise.
1618         * testsuite/20_util/optional/monadic/pr109242.cc: Likewise.
1619         * testsuite/20_util/optional/monadic/transform.cc: Likewise.
1620         * testsuite/20_util/pair/p2321r2.cc: Likewise.
1621         * testsuite/20_util/reference_from_temporary/value.cc: Likewise.
1622         * testsuite/20_util/reference_from_temporary/value2.cc:
1623         Likewise.
1624         * testsuite/20_util/reference_from_temporary/version.cc:
1625         Likewise.
1626         * testsuite/20_util/to_chars/constexpr.cc: Likewise.
1627         * testsuite/20_util/to_chars/float128_c++23.cc: Likewise.
1628         * testsuite/20_util/to_chars/float16_c++23.cc: Likewise.
1629         * testsuite/20_util/to_chars/version.cc: Likewise.
1630         * testsuite/20_util/to_underlying/1.cc: Likewise.
1631         * testsuite/20_util/to_underlying/version.cc: Likewise.
1632         * testsuite/20_util/tuple/p2321r2.cc: Likewise.
1633         * testsuite/20_util/unique_ptr/assign/constexpr.cc: Likewise.
1634         * testsuite/20_util/unique_ptr/comparison/constexpr.cc:
1635         Likewise.
1636         * testsuite/20_util/unique_ptr/cons/constexpr_c++20.cc:
1637         Likewise.
1638         * testsuite/20_util/unique_ptr/creation/constexpr.cc: Likewise.
1639         * testsuite/20_util/unique_ptr/modifiers/constexpr.cc: Likewise.
1640         * testsuite/20_util/unique_ptr/specialized_algorithms/constexpr.cc: Likewise.
1641         * testsuite/20_util/unreachable/1.cc: Likewise.
1642         * testsuite/20_util/unreachable/version.cc: Likewise.
1643         * testsuite/20_util/uses_allocator/lwg3677.cc: Likewise.
1644         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc: Likewise.
1645         * testsuite/21_strings/basic_string/operations/contains/char.cc:
1646         Likewise.
1647         * testsuite/21_strings/basic_string/operations/contains/nonnull.cc: Likewise.
1648         * testsuite/21_strings/basic_string/operations/contains/wchar_t.cc: Likewise.
1649         * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc: Likewise.
1650         * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc: Likewise.
1651         * testsuite/21_strings/basic_string_view/operations/contains/char.cc: Likewise.
1652         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc: Likewise.
1653         * testsuite/21_strings/basic_string_view/operations/contains/nonnull.cc: Likewise.
1654         * testsuite/21_strings/basic_string_view/operations/contains/wchar_t.cc: Likewise.
1655         * testsuite/23_containers/queue/cons_from_iters.cc: Likewise.
1656         * testsuite/23_containers/stack/cons_from_iters.cc: Likewise.
1657         * testsuite/23_containers/vector/bool/element_access/1.cc:
1658         Likewise.
1659         * testsuite/24_iterators/const_iterator/1.cc: Likewise.
1660         * testsuite/25_algorithms/contains/1.cc: Likewise.
1661         * testsuite/25_algorithms/contains_subrange/1.cc: Likewise.
1662         * testsuite/25_algorithms/find_last/1.cc: Likewise.
1663         * testsuite/25_algorithms/find_last_if/1.cc: Likewise.
1664         * testsuite/25_algorithms/find_last_if_not/1.cc: Likewise.
1665         * testsuite/25_algorithms/fold_left/1.cc: Likewise.
1666         * testsuite/25_algorithms/fold_right/1.cc: Likewise.
1667         * testsuite/25_algorithms/iota/1.cc: Likewise.
1668         * testsuite/26_numerics/bit/bit.byteswap/byteswap.cc: Likewise.
1669         * testsuite/26_numerics/bit/bit.byteswap/version.cc: Likewise.
1670         * testsuite/26_numerics/complex/ext_c++23.cc: Likewise.
1671         * testsuite/26_numerics/headers/cmath/c99_classification_macros_c++23.cc: Likewise.
1672         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc:
1673         Likewise.
1674         * testsuite/26_numerics/headers/cmath/functions_std_c++23.cc:
1675         Likewise.
1676         * testsuite/26_numerics/headers/cmath/nextafter_c++23.cc:
1677         Likewise.
1678         * testsuite/26_numerics/numbers/4.cc: Likewise.
1679         * testsuite/27_io/basic_ostream/inserters_other/char/volatile_ptr.cc: Likewise.
1680         * testsuite/27_io/filesystem/path/native/conv_c++23.cc:
1681         Likewise.
1682         * testsuite/27_io/spanstream/1.cc: Likewise.
1683         * testsuite/27_io/spanstream/2.cc: Likewise.
1684         * testsuite/27_io/spanstream/version.cc: Likewise.
1685         * testsuite/29_atomics/atomic_float/requirements_cxx23.cc:
1686         Likewise.
1687         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
1688         Likewise.
1689         * testsuite/29_atomics/headers/stdatomic.h/version.cc: Likewise.
1690         * testsuite/30_threads/packaged_task/cons/deduction_c++23.cc:
1691         Likewise.
1692         * testsuite/experimental/filesystem/path/native/conv_c++23.cc:
1693         Likewise.
1694         * testsuite/std/ranges/adaptors/adjacent/1.cc: Likewise.
1695         * testsuite/std/ranges/adaptors/adjacent_transform/1.cc:
1696         Likewise.
1697         * testsuite/std/ranges/adaptors/as_const/1.cc: Likewise.
1698         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
1699         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
1700         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
1701         * testsuite/std/ranges/adaptors/enumerate/1.cc: Likewise.
1702         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
1703         * testsuite/std/ranges/adaptors/lwg3715.cc: Likewise.
1704         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
1705         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
1706         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
1707         * testsuite/std/ranges/range_adaptor_closure.cc: Likewise.
1708         * testsuite/std/ranges/repeat/1.cc: Likewise.
1709         * testsuite/std/ranges/version_c++23.cc: Likewise.
1710         * testsuite/std/ranges/zip/1.cc: Likewise.
1711         * testsuite/std/ranges/zip_transform/1.cc: Likewise.
1712
1713 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1714
1715         * testsuite/20_util/expected/assign.cc: Remove dg-options.
1716         * testsuite/20_util/expected/bad.cc: Likewise.
1717         * testsuite/20_util/expected/cons.cc: Likewise.
1718         * testsuite/20_util/expected/equality.cc: Likewise.
1719         * testsuite/20_util/expected/illformed_neg.cc: Likewise.
1720         * testsuite/20_util/expected/lwg3877.cc: Likewise.
1721         * testsuite/20_util/expected/lwg3938.cc: Likewise.
1722         * testsuite/20_util/expected/monadic.cc: Likewise.
1723         * testsuite/20_util/expected/observers.cc: Likewise.
1724         * testsuite/20_util/expected/requirements.cc: Likewise.
1725         * testsuite/20_util/expected/swap.cc: Likewise.
1726         * testsuite/20_util/expected/synopsis.cc: Likewise.
1727         * testsuite/20_util/expected/unexpected.cc: Likewise.
1728         * testsuite/20_util/expected/version.cc: Likewise.
1729
1730 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1731
1732         * testsuite/20_util/duration/arithmetic/overflow_c++20.cc:
1733         Remove dg-options.
1734         * testsuite/20_util/duration/io.cc: Likewise.
1735         * testsuite/std/time/clock/file/io.cc: Likewise.
1736         * testsuite/std/time/clock/file/members.cc: Likewise.
1737         * testsuite/std/time/clock/file/overview.cc: Likewise.
1738         * testsuite/std/time/clock/gps/1.cc: Likewise.
1739         * testsuite/std/time/clock/gps/io.cc: Likewise.
1740         * testsuite/std/time/clock/local/io.cc: Likewise.
1741         * testsuite/std/time/clock/system/io.cc: Likewise.
1742         * testsuite/std/time/clock/tai/1.cc: Likewise.
1743         * testsuite/std/time/clock/tai/io.cc: Likewise.
1744         * testsuite/std/time/clock/utc/1.cc: Likewise.
1745         * testsuite/std/time/clock/utc/io.cc: Likewise.
1746         * testsuite/std/time/clock/utc/leap_second_info.cc: Likewise.
1747         * testsuite/std/time/day/1.cc: Likewise.
1748         * testsuite/std/time/day/io.cc: Likewise.
1749         * testsuite/std/time/exceptions.cc: Likewise.
1750         * testsuite/std/time/format.cc: Likewise.
1751         * testsuite/std/time/hh_mm_ss/1.cc: Likewise.
1752         * testsuite/std/time/hh_mm_ss/109772.cc: Likewise.
1753         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
1754         * testsuite/std/time/is_am/1.cc: Likewise.
1755         * testsuite/std/time/is_pm/1.cc: Likewise.
1756         * testsuite/std/time/make12/1.cc: Likewise.
1757         * testsuite/std/time/make24/1.cc: Likewise.
1758         * testsuite/std/time/month/1.cc: Likewise.
1759         * testsuite/std/time/month/io.cc: Likewise.
1760         * testsuite/std/time/month_day/1.cc: Likewise.
1761         * testsuite/std/time/month_day/io.cc: Likewise.
1762         * testsuite/std/time/month_day_last/1.cc: Likewise.
1763         * testsuite/std/time/month_day_last/io.cc: Likewise.
1764         * testsuite/std/time/month_weekday/1.cc: Likewise.
1765         * testsuite/std/time/month_weekday/io.cc: Likewise.
1766         * testsuite/std/time/month_weekday_last/1.cc: Likewise.
1767         * testsuite/std/time/month_weekday_last/io.cc: Likewise.
1768         * testsuite/std/time/parse.cc: Likewise.
1769         * testsuite/std/time/syn_c++20.cc: Likewise.
1770         * testsuite/std/time/time_zone/get_info_local.cc: Likewise.
1771         * testsuite/std/time/time_zone/get_info_sys.cc: Likewise.
1772         * testsuite/std/time/time_zone/requirements.cc: Likewise.
1773         * testsuite/std/time/traits/is_clock.cc: Likewise.
1774         * testsuite/std/time/tzdb/1.cc: Likewise.
1775         * testsuite/std/time/tzdb/leap_seconds.cc: Likewise.
1776         * testsuite/std/time/tzdb_list/1.cc: Likewise.
1777         * testsuite/std/time/tzdb_list/requirements.cc: Likewise.
1778         * testsuite/std/time/weekday/1.cc: Likewise.
1779         * testsuite/std/time/weekday/io.cc: Likewise.
1780         * testsuite/std/time/weekday_indexed/io.cc: Likewise.
1781         * testsuite/std/time/weekday_last/1.cc: Likewise.
1782         * testsuite/std/time/weekday_last/io.cc: Likewise.
1783         * testsuite/std/time/year/1.cc: Likewise.
1784         * testsuite/std/time/year/2.cc: Likewise.
1785         * testsuite/std/time/year/io.cc: Likewise.
1786         * testsuite/std/time/weekday_indexed/1.cc: Likewise.
1787         * testsuite/std/time/year_month/1.cc: Likewise.
1788         * testsuite/std/time/year_month/2.cc: Likewise.
1789         * testsuite/std/time/year_month/io.cc: Likewise.
1790         * testsuite/std/time/year_month_day/1.cc: Likewise.
1791         * testsuite/std/time/year_month_day/2.cc: Likewise.
1792         * testsuite/std/time/year_month_day/3.cc: Likewise.
1793         * testsuite/std/time/year_month_day/4.cc: Likewise.
1794         * testsuite/std/time/year_month_day/io.cc: Likewise.
1795         * testsuite/std/time/year_month_day_last/1.cc: Likewise.
1796         * testsuite/std/time/year_month_day_last/2.cc: Likewise.
1797         * testsuite/std/time/year_month_day_last/io.cc: Likewise.
1798         * testsuite/std/time/year_month_weekday/1.cc: Likewise.
1799         * testsuite/std/time/year_month_weekday/2.cc: Likewise.
1800         * testsuite/std/time/year_month_weekday/3.cc: Likewise.
1801         * testsuite/std/time/year_month_weekday/io.cc: Likewise.
1802         * testsuite/std/time/year_month_weekday_last/1.cc: Likewise.
1803         * testsuite/std/time/year_month_weekday_last/2.cc: Likewise.
1804         * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
1805         * testsuite/std/time/zoned_time/1.cc: Likewise.
1806         * testsuite/std/time/zoned_time/custom.cc: Likewise.
1807         * testsuite/std/time/zoned_time/deduction.cc: Likewise.
1808         * testsuite/std/time/zoned_time/io.cc: Likewise.
1809         * testsuite/std/time/zoned_time/req_neg.cc: Likewise.
1810         * testsuite/std/time/zoned_time/requirements.cc: Likewise.
1811         * testsuite/std/time/zoned_traits.cc: Likewise.
1812
1813 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1814
1815         * testsuite/std/format/arguments/args.cc: Remove dg-options.
1816         * testsuite/std/format/arguments/lwg3810.cc: Likewise.
1817         * testsuite/std/format/error.cc: Likewise.
1818         * testsuite/std/format/format_string.cc: Likewise.
1819         * testsuite/std/format/formatter/concept.cc: Likewise.
1820         * testsuite/std/format/formatter/ext_float.cc: Likewise.
1821         * testsuite/std/format/formatter/requirements.cc: Likewise.
1822         * testsuite/std/format/functions/107871.cc: Likewise.
1823         * testsuite/std/format/functions/format.cc: Likewise.
1824         * testsuite/std/format/functions/format_to.cc: Likewise.
1825         * testsuite/std/format/functions/format_to_n.cc: Likewise.
1826         * testsuite/std/format/functions/size.cc: Likewise.
1827         * testsuite/std/format/functions/vformat_to.cc: Likewise.
1828         * testsuite/std/format/parse_ctx.cc: Likewise.
1829         * testsuite/std/format/string.cc: Likewise.
1830         * testsuite/std/format/string_neg.cc: Likewise.
1831         * testsuite/std/format/functions/format_c++23.cc: Removed.
1832
1833 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
1834
1835         * testsuite/20_util/function_objects/range.cmp/equal_to.cc:
1836         Remove dg-options.
1837         * testsuite/20_util/function_objects/range.cmp/greater.cc:
1838         Likewise.
1839         * testsuite/20_util/function_objects/range.cmp/greater_equal.cc:
1840         Likewise.
1841         * testsuite/20_util/function_objects/range.cmp/less.cc:
1842         Likewise.
1843         * testsuite/20_util/function_objects/range.cmp/less_equal.cc:
1844         Likewise.
1845         * testsuite/20_util/function_objects/range.cmp/lwg3530.cc:
1846         Likewise.
1847         * testsuite/20_util/function_objects/range.cmp/not_equal_to.cc:
1848         Likewise.
1849         * testsuite/20_util/specialized_algorithms/construct_at/1.cc:
1850         Likewise.
1851         * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
1852         Likewise.
1853         * testsuite/20_util/specialized_algorithms/construct_at/95788.cc:
1854         Likewise.
1855         * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1856         Likewise.
1857         * testsuite/20_util/specialized_algorithms/uninitialized_copy/constrained.cc:
1858         Likewise.
1859         * testsuite/20_util/specialized_algorithms/uninitialized_default_construct/constrained.cc:
1860         Likewise.
1861         * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
1862         Likewise.
1863         * testsuite/20_util/specialized_algorithms/uninitialized_fill/constrained.cc:
1864         Likewise.
1865         * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
1866         Likewise.
1867         * testsuite/20_util/specialized_algorithms/uninitialized_move/constrained.cc:
1868         Likewise.
1869         * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/constrained.cc:
1870         Likewise.
1871         * testsuite/25_algorithms/adjacent_find/constexpr.cc: Likewise.
1872         * testsuite/25_algorithms/adjacent_find/constrained.cc:
1873         Likewise.
1874         * testsuite/25_algorithms/all_of/constexpr.cc: Likewise.
1875         * testsuite/25_algorithms/all_of/constrained.cc: Likewise.
1876         * testsuite/25_algorithms/any_of/constexpr.cc: Likewise.
1877         * testsuite/25_algorithms/any_of/constrained.cc: Likewise.
1878         * testsuite/25_algorithms/binary_search/constexpr.cc: Likewise.
1879         * testsuite/25_algorithms/binary_search/constrained.cc:
1880         Likewise.
1881         * testsuite/25_algorithms/clamp/constrained.cc: Likewise.
1882         * testsuite/25_algorithms/constexpr_macro.cc: Likewise.
1883         * testsuite/25_algorithms/copy/95578.cc: Likewise.
1884         * testsuite/25_algorithms/copy/constexpr.cc: Likewise.
1885         * testsuite/25_algorithms/copy/constrained.cc: Likewise.
1886         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Likewise.
1887         * testsuite/25_algorithms/copy_backward/95578.cc: Likewise.
1888         * testsuite/25_algorithms/copy_backward/constexpr.cc: Likewise.
1889         * testsuite/25_algorithms/copy_backward/constrained.cc:
1890         Likewise.
1891         * testsuite/25_algorithms/copy_backward/debug/constexpr_neg.cc:
1892         Likewise.
1893         * testsuite/25_algorithms/copy_if/constexpr.cc: Likewise.
1894         * testsuite/25_algorithms/copy_if/constrained.cc: Likewise.
1895         * testsuite/25_algorithms/copy_n/constexpr.cc: Likewise.
1896         * testsuite/25_algorithms/copy_n/constrained.cc: Likewise.
1897         * testsuite/25_algorithms/count/constexpr.cc: Likewise.
1898         * testsuite/25_algorithms/count/constrained.cc: Likewise.
1899         * testsuite/25_algorithms/count_if/constexpr.cc: Likewise.
1900         * testsuite/25_algorithms/count_if/constrained.cc: Likewise.
1901         * testsuite/25_algorithms/cpp_lib_constexpr.cc: Likewise.
1902         * testsuite/25_algorithms/equal/95578.cc: Likewise.
1903         * testsuite/25_algorithms/equal/constexpr.cc: Likewise.
1904         * testsuite/25_algorithms/equal/constexpr_neg.cc: Likewise.
1905         * testsuite/25_algorithms/equal/constrained.cc: Likewise.
1906         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
1907         Likewise.
1908         * testsuite/25_algorithms/equal_range/constexpr.cc: Likewise.
1909         * testsuite/25_algorithms/equal_range/constrained.cc: Likewise.
1910         * testsuite/25_algorithms/fill/94017.cc: Likewise.
1911         * testsuite/25_algorithms/fill/constexpr.cc: Likewise.
1912         * testsuite/25_algorithms/fill/constrained.cc: Likewise.
1913         * testsuite/25_algorithms/fill_n/94017.cc: Likewise.
1914         * testsuite/25_algorithms/fill_n/constexpr.cc: Likewise.
1915         * testsuite/25_algorithms/fill_n/constrained.cc: Likewise.
1916         * testsuite/25_algorithms/find/constexpr.cc: Likewise.
1917         * testsuite/25_algorithms/find/constrained.cc: Likewise.
1918         * testsuite/25_algorithms/find_end/constexpr.cc: Likewise.
1919         * testsuite/25_algorithms/find_end/constrained.cc: Likewise.
1920         * testsuite/25_algorithms/find_first_of/constexpr.cc: Likewise.
1921         * testsuite/25_algorithms/find_first_of/constrained.cc:
1922         Likewise.
1923         * testsuite/25_algorithms/find_if/constexpr.cc: Likewise.
1924         * testsuite/25_algorithms/find_if/constrained.cc: Likewise.
1925         * testsuite/25_algorithms/find_if_not/constexpr.cc: Likewise.
1926         * testsuite/25_algorithms/find_if_not/constrained.cc: Likewise.
1927         * testsuite/25_algorithms/for_each/constexpr.cc: Likewise.
1928         * testsuite/25_algorithms/for_each/constrained.cc: Likewise.
1929         * testsuite/25_algorithms/generate/constexpr.cc: Likewise.
1930         * testsuite/25_algorithms/generate/constrained.cc: Likewise.
1931         * testsuite/25_algorithms/generate_n/constexpr.cc: Likewise.
1932         * testsuite/25_algorithms/generate_n/constrained.cc: Likewise.
1933         * testsuite/25_algorithms/heap/constrained.cc: Likewise.
1934         * testsuite/25_algorithms/includes/constrained.cc: Likewise.
1935         * testsuite/25_algorithms/inplace_merge/constrained.cc:
1936         Likewise.
1937         * testsuite/25_algorithms/is_heap/constexpr.cc: Likewise.
1938         * testsuite/25_algorithms/is_heap_until/constexpr.cc: Likewise.
1939         * testsuite/25_algorithms/is_partitioned/constexpr.cc: Likewise.
1940         * testsuite/25_algorithms/is_partitioned/constrained.cc:
1941         Likewise.
1942         * testsuite/25_algorithms/is_permutation/constexpr.cc: Likewise.
1943         * testsuite/25_algorithms/is_permutation/constrained.cc:
1944         Likewise.
1945         * testsuite/25_algorithms/is_sorted/constexpr.cc: Likewise.
1946         * testsuite/25_algorithms/is_sorted/constrained.cc: Likewise.
1947         * testsuite/25_algorithms/is_sorted_until/constexpr.cc:
1948         Likewise.
1949         * testsuite/25_algorithms/is_sorted_until/constrained.cc:
1950         Likewise.
1951         * testsuite/25_algorithms/iter_swap/constexpr.cc: Likewise.
1952         * testsuite/25_algorithms/lexicographical_compare/93972.cc:
1953         Likewise.
1954         * testsuite/25_algorithms/lexicographical_compare/95578.cc:
1955         Likewise.
1956         * testsuite/25_algorithms/lexicographical_compare/constexpr.cc:
1957         Likewise.
1958         * testsuite/25_algorithms/lexicographical_compare/constrained.cc:
1959         Likewise.
1960         * testsuite/25_algorithms/lexicographical_compare_three_way/1.cc:
1961         Likewise.
1962         * testsuite/25_algorithms/lexicographical_compare_three_way/constexpr.cc:
1963         Likewise.
1964         * testsuite/25_algorithms/lower_bound/constexpr.cc: Likewise.
1965         * testsuite/25_algorithms/lower_bound/constrained.cc: Likewise.
1966         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_neg.cc:
1967         Likewise.
1968         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_pred_neg.cc:
1969         Likewise.
1970         * testsuite/25_algorithms/lower_bound/debug/constexpr_valid_range_neg.cc:
1971         Likewise.
1972         * testsuite/25_algorithms/make_heap/constexpr.cc: Likewise.
1973         * testsuite/25_algorithms/max/constrained.cc: Likewise.
1974         * testsuite/25_algorithms/max_element/constrained.cc: Likewise.
1975         * testsuite/25_algorithms/merge/constexpr.cc: Likewise.
1976         * testsuite/25_algorithms/merge/constrained.cc: Likewise.
1977         * testsuite/25_algorithms/min/constrained.cc: Likewise.
1978         * testsuite/25_algorithms/min_element/constrained.cc: Likewise.
1979         * testsuite/25_algorithms/minmax/constrained.cc: Likewise.
1980         * testsuite/25_algorithms/minmax_element/constrained.cc:
1981         Likewise.
1982         * testsuite/25_algorithms/mismatch/constexpr.cc: Likewise.
1983         * testsuite/25_algorithms/mismatch/constrained.cc: Likewise.
1984         * testsuite/25_algorithms/move/93872.cc: Likewise.
1985         * testsuite/25_algorithms/move/95578.cc: Likewise.
1986         * testsuite/25_algorithms/move/constexpr.cc: Likewise.
1987         * testsuite/25_algorithms/move/constrained.cc: Likewise.
1988         * testsuite/25_algorithms/move_backward/93872.cc: Likewise.
1989         * testsuite/25_algorithms/move_backward/95578.cc: Likewise.
1990         * testsuite/25_algorithms/move_backward/constrained.cc:
1991         Likewise.
1992         * testsuite/25_algorithms/next_permutation/constexpr.cc:
1993         Likewise.
1994         * testsuite/25_algorithms/next_permutation/constrained.cc:
1995         Likewise.
1996         * testsuite/25_algorithms/none_of/constexpr.cc: Likewise.
1997         * testsuite/25_algorithms/none_of/constrained.cc: Likewise.
1998         * testsuite/25_algorithms/nth_element/constexpr.cc: Likewise.
1999         * testsuite/25_algorithms/nth_element/constrained.cc: Likewise.
2000         * testsuite/25_algorithms/partial_sort/constexpr.cc: Likewise.
2001         * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
2002         * testsuite/25_algorithms/partial_sort_copy/constexpr.cc:
2003         Likewise.
2004         * testsuite/25_algorithms/partial_sort_copy/constrained.cc:
2005         Likewise.
2006         * testsuite/25_algorithms/partition/constexpr.cc: Likewise.
2007         * testsuite/25_algorithms/partition/constrained.cc: Likewise.
2008         * testsuite/25_algorithms/partition_copy/constexpr.cc: Likewise.
2009         * testsuite/25_algorithms/partition_copy/constrained.cc:
2010         Likewise.
2011         * testsuite/25_algorithms/partition_point/constexpr.cc:
2012         Likewise.
2013         * testsuite/25_algorithms/partition_point/constrained.cc:
2014         Likewise.
2015         * testsuite/25_algorithms/pop_heap/constexpr.cc: Likewise.
2016         * testsuite/25_algorithms/prev_permutation/constexpr.cc:
2017         Likewise.
2018         * testsuite/25_algorithms/prev_permutation/constrained.cc:
2019         Likewise.
2020         * testsuite/25_algorithms/push_heap/constexpr.cc: Likewise.
2021         * testsuite/25_algorithms/remove/constexpr.cc: Likewise.
2022         * testsuite/25_algorithms/remove/constrained.cc: Likewise.
2023         * testsuite/25_algorithms/remove_copy/constexpr.cc: Likewise.
2024         * testsuite/25_algorithms/remove_copy/constrained.cc: Likewise.
2025         * testsuite/25_algorithms/remove_copy_if/constexpr.cc: Likewise.
2026         * testsuite/25_algorithms/remove_copy_if/constrained.cc:
2027         Likewise.
2028         * testsuite/25_algorithms/remove_if/constexpr.cc: Likewise.
2029         * testsuite/25_algorithms/remove_if/constrained.cc: Likewise.
2030         * testsuite/25_algorithms/replace/constrained.cc: Likewise.
2031         * testsuite/25_algorithms/replace_copy/constexpr.cc: Likewise.
2032         * testsuite/25_algorithms/replace_copy/constrained.cc: Likewise.
2033         * testsuite/25_algorithms/replace_copy_if/constexpr.cc:
2034         Likewise.
2035         * testsuite/25_algorithms/replace_copy_if/constrained.cc:
2036         Likewise.
2037         * testsuite/25_algorithms/replace_if/constexpr.cc: Likewise.
2038         * testsuite/25_algorithms/replace_if/constrained.cc: Likewise.
2039         * testsuite/25_algorithms/reverse/constexpr.cc: Likewise.
2040         * testsuite/25_algorithms/reverse/constrained.cc: Likewise.
2041         * testsuite/25_algorithms/reverse_copy/constexpr.cc: Likewise.
2042         * testsuite/25_algorithms/reverse_copy/constrained.cc: Likewise.
2043         * testsuite/25_algorithms/rotate/constexpr.cc: Likewise.
2044         * testsuite/25_algorithms/rotate/constrained.cc: Likewise.
2045         * testsuite/25_algorithms/rotate_copy/constexpr.cc: Likewise.
2046         * testsuite/25_algorithms/rotate_copy/constrained.cc: Likewise.
2047         * testsuite/25_algorithms/sample/constrained.cc: Likewise.
2048         * testsuite/25_algorithms/search/constexpr.cc: Likewise.
2049         * testsuite/25_algorithms/search/constrained.cc: Likewise.
2050         * testsuite/25_algorithms/search_n/97828.cc: Likewise.
2051         * testsuite/25_algorithms/search_n/constexpr.cc: Likewise.
2052         * testsuite/25_algorithms/search_n/constrained.cc: Likewise.
2053         * testsuite/25_algorithms/set_difference/constexpr.cc: Likewise.
2054         * testsuite/25_algorithms/set_difference/constrained.cc:
2055         Likewise.
2056         * testsuite/25_algorithms/set_intersection/constexpr.cc:
2057         Likewise.
2058         * testsuite/25_algorithms/set_intersection/constrained.cc:
2059         Likewise.
2060         * testsuite/25_algorithms/set_symmetric_difference/constexpr.cc:
2061         Likewise.
2062         * testsuite/25_algorithms/set_symmetric_difference/constrained.cc:
2063         Likewise.
2064         * testsuite/25_algorithms/set_union/constexpr.cc: Likewise.
2065         * testsuite/25_algorithms/set_union/constrained.cc: Likewise.
2066         * testsuite/25_algorithms/shift_left/1.cc: Likewise.
2067         * testsuite/25_algorithms/shift_right/1.cc: Likewise.
2068         * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
2069         * testsuite/25_algorithms/sort/constexpr.cc: Likewise.
2070         * testsuite/25_algorithms/sort/constrained.cc: Likewise.
2071         * testsuite/25_algorithms/sort_heap/constexpr.cc: Likewise.
2072         * testsuite/25_algorithms/stable_partition/constrained.cc:
2073         Likewise.
2074         * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
2075         * testsuite/25_algorithms/swap/constexpr.cc: Likewise.
2076         * testsuite/25_algorithms/swap_ranges/constexpr.cc: Likewise.
2077         * testsuite/25_algorithms/swap_ranges/constrained.cc: Likewise.
2078         * testsuite/25_algorithms/transform/constexpr.cc: Likewise.
2079         * testsuite/25_algorithms/transform/constrained.cc: Likewise.
2080         * testsuite/25_algorithms/unique/constexpr.cc: Likewise.
2081         * testsuite/25_algorithms/unique/constrained.cc: Likewise.
2082         * testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise.
2083         * testsuite/25_algorithms/unique_copy/constrained.cc: Likewise.
2084         * testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise.
2085         * testsuite/25_algorithms/upper_bound/constrained.cc: Likewise.
2086         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_neg.cc:
2087         Likewise.
2088         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_pred_neg.cc:
2089         Likewise.
2090         * testsuite/25_algorithms/upper_bound/debug/constexpr_valid_range_neg.cc:
2091         Likewise.
2092
2093 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2094
2095         * testsuite/std/concepts/1.cc: Remove dg-options.
2096         * testsuite/std/concepts/2.cc: Likewise.
2097         * testsuite/std/concepts/concepts.callable/invocable.cc:
2098         Likewise.
2099         * testsuite/std/concepts/concepts.callable/regular_invocable.cc:
2100         Likewise.
2101         * testsuite/std/concepts/concepts.callable/relation.cc:
2102         Likewise.
2103         * testsuite/std/concepts/concepts.callable/strictweakorder.cc:
2104         Likewise.
2105         * testsuite/std/concepts/concepts.lang/concept.arithmetic/floating_point.cc: Likewise.
2106         * testsuite/std/concepts/concepts.lang/concept.arithmetic/integral.cc: Likewise.
2107         * testsuite/std/concepts/concepts.lang/concept.arithmetic/signed_integral.cc: Likewise.
2108         * testsuite/std/concepts/concepts.lang/concept.arithmetic/unsigned_integral.cc: Likewise.
2109         * testsuite/std/concepts/concepts.lang/concept.assignable/1.cc:
2110         Likewise.
2111         * testsuite/std/concepts/concepts.lang/concept.common/1.cc:
2112         Likewise.
2113         * testsuite/std/concepts/concepts.lang/concept.commonref/1.cc:
2114         Likewise.
2115         * testsuite/std/concepts/concepts.lang/concept.constructible/1.cc: Likewise.
2116         * testsuite/std/concepts/concepts.lang/concept.convertible/1.cc:
2117         Likewise.
2118         * testsuite/std/concepts/concepts.lang/concept.copyconstructible/1.cc: Likewise.
2119         * testsuite/std/concepts/concepts.lang/concept.defaultinitializable/1.cc: Likewise.
2120         * testsuite/std/concepts/concepts.lang/concept.defaultinitializable/lwg3149.cc: Likewise.
2121         * testsuite/std/concepts/concepts.lang/concept.derived/1.cc:
2122         Likewise.
2123         * testsuite/std/concepts/concepts.lang/concept.destructible/1.cc: Likewise.
2124         * testsuite/std/concepts/concepts.lang/concept.moveconstructible/1.cc: Likewise.
2125         * testsuite/std/concepts/concepts.lang/concept.same/1.cc:
2126         Likewise.
2127         * testsuite/std/concepts/concepts.lang/concept.swappable/swap.cc: Likewise.
2128         * testsuite/std/concepts/concepts.lang/concept.swappable/swappable.cc: Likewise.
2129         * testsuite/std/concepts/concepts.lang/concept.swappable/swappable_with.cc: Likewise.
2130         * testsuite/std/concepts/concepts.object/copyable.cc: Likewise.
2131         * testsuite/std/concepts/concepts.object/movable.cc: Likewise.
2132         * testsuite/std/concepts/concepts.object/regular.cc: Likewise.
2133         * testsuite/std/concepts/concepts.object/semiregular.cc:
2134         Likewise.
2135         * testsuite/std/ranges/97600.cc: Likewise.
2136         * testsuite/std/ranges/access/101782.cc: Likewise.
2137         * testsuite/std/ranges/access/begin.cc: Likewise.
2138         * testsuite/std/ranges/access/begin_neg.cc: Likewise.
2139         * testsuite/std/ranges/access/cbegin.cc: Likewise.
2140         * testsuite/std/ranges/access/cdata.cc: Likewise.
2141         * testsuite/std/ranges/access/cend.cc: Likewise.
2142         * testsuite/std/ranges/access/crbegin.cc: Likewise.
2143         * testsuite/std/ranges/access/crend.cc: Likewise.
2144         * testsuite/std/ranges/access/data.cc: Likewise.
2145         * testsuite/std/ranges/access/empty.cc: Likewise.
2146         * testsuite/std/ranges/access/end.cc: Likewise.
2147         * testsuite/std/ranges/access/end_neg.cc: Likewise.
2148         * testsuite/std/ranges/access/lwg3467.cc: Likewise.
2149         * testsuite/std/ranges/access/p2602.cc: Likewise.
2150         * testsuite/std/ranges/access/rbegin.cc: Likewise.
2151         * testsuite/std/ranges/access/rend.cc: Likewise.
2152         * testsuite/std/ranges/access/size.cc: Likewise.
2153         * testsuite/std/ranges/access/size_neg.cc: Likewise.
2154         * testsuite/std/ranges/access/ssize.cc: Likewise.
2155         * testsuite/std/ranges/adaptors/100479.cc: Likewise.
2156         * testsuite/std/ranges/adaptors/100577.cc: Likewise.
2157         * testsuite/std/ranges/adaptors/93978.cc: Likewise.
2158         * testsuite/std/ranges/adaptors/95322.cc: Likewise.
2159         * testsuite/std/ranges/adaptors/99433.cc: Likewise.
2160         * testsuite/std/ranges/adaptors/all.cc: Likewise.
2161         * testsuite/std/ranges/adaptors/common.cc: Likewise.
2162         * testsuite/std/ranges/adaptors/conditionally_borrowed.cc:
2163         Likewise.
2164         * testsuite/std/ranges/adaptors/counted.cc: Likewise.
2165         * testsuite/std/ranges/adaptors/detail/copyable_box.cc:
2166         Likewise.
2167         * testsuite/std/ranges/adaptors/drop.cc: Likewise.
2168         * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
2169         * testsuite/std/ranges/adaptors/elements.cc: Likewise.
2170         * testsuite/std/ranges/adaptors/filter.cc: Likewise.
2171         * testsuite/std/ranges/adaptors/join.cc: Likewise.
2172         * testsuite/std/ranges/adaptors/lazy_split.cc: Likewise.
2173         * testsuite/std/ranges/adaptors/lazy_split_neg.cc: Likewise.
2174         * testsuite/std/ranges/adaptors/lwg3286.cc: Likewise.
2175         * testsuite/std/ranges/adaptors/lwg3313_neg.cc: Likewise.
2176         * testsuite/std/ranges/adaptors/lwg3325_neg.cc: Likewise.
2177         * testsuite/std/ranges/adaptors/lwg3406.cc: Likewise.
2178         * testsuite/std/ranges/adaptors/p1739.cc: Likewise.
2179         * testsuite/std/ranges/adaptors/p2281.cc: Likewise.
2180         * testsuite/std/ranges/adaptors/p2770r0.cc: Likewise.
2181         * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
2182         * testsuite/std/ranges/adaptors/sizeof.cc: Likewise.
2183         * testsuite/std/ranges/adaptors/split.cc: Likewise.
2184         * testsuite/std/ranges/adaptors/take.cc: Likewise.
2185         * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2186         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2187         * testsuite/std/ranges/empty_view.cc: Likewise.
2188         * testsuite/std/ranges/headers/ranges/synopsis.cc: Likewise.
2189         * testsuite/std/ranges/iota/difference_type.cc: Likewise.
2190         * testsuite/std/ranges/iota/iota_view.cc: Likewise.
2191         * testsuite/std/ranges/iota/iterator.cc: Likewise.
2192         * testsuite/std/ranges/iota/lwg3292_neg.cc: Likewise.
2193         * testsuite/std/ranges/iota/max_size_type.cc: Likewise.
2194         * testsuite/std/ranges/istream_view.cc: Likewise.
2195         * testsuite/std/ranges/p2259.cc: Likewise.
2196         * testsuite/std/ranges/p2325.cc: Likewise.
2197         * testsuite/std/ranges/p2367.cc: Likewise.
2198         * testsuite/std/ranges/range.cc: Likewise.
2199         * testsuite/std/ranges/refinements.cc: Likewise.
2200         * testsuite/std/ranges/safe_range.cc: Likewise.
2201         * testsuite/std/ranges/safe_range_types.cc: Likewise.
2202         * testsuite/std/ranges/single_view.cc: Likewise.
2203         * testsuite/std/ranges/sized.cc: Likewise.
2204         * testsuite/std/ranges/subrange/1.cc: Likewise.
2205         * testsuite/std/ranges/subrange/97512.cc: Likewise.
2206         * testsuite/std/ranges/subrange/constexpr.cc: Likewise.
2207         * testsuite/std/ranges/subrange/lwg3282_neg.cc: Likewise.
2208         * testsuite/std/ranges/subrange/lwg3286.cc: Likewise.
2209         * testsuite/std/ranges/subrange/lwg3433.cc: Likewise.
2210         * testsuite/std/ranges/subrange/sizeof.cc: Likewise.
2211         * testsuite/std/ranges/subrange/tuple_like.cc: Likewise.
2212         * testsuite/std/ranges/view.cc: Likewise.
2213
2214 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2215
2216         * testsuite/21_strings/headers/cuchar/functions_std_cxx20.cc:
2217         Remove dg-options.
2218         * testsuite/23_containers/span/contiguous_range_neg.cc:
2219         Likewise.
2220         * testsuite/23_containers/span/everything.cc: Likewise.
2221
2222 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2223
2224         * testsuite/24_iterators/reverse_iterator/100639.cc: Remove
2225         dg-options and add dg-add-options strict_std.
2226         * testsuite/std/ranges/iota/93267.cc: Likewise.
2227         * testsuite/std/ranges/iota/96042.cc: Likewise.
2228         * testsuite/std/ranges/iota/size.cc: Likewise.
2229         * testsuite/std/ranges/subrange/96042.cc: Likewise.
2230
2231 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2232
2233         * testsuite/tr1/5_numerical_facilities/special_functions/07_conf_hyperg/compile_cxx17.cc:
2234         Replace dg-options -std=c++17 with dg-add-options strict_std.
2235         * testsuite/tr1/5_numerical_facilities/special_functions/17_hyperg/compile_cxx17.cc:
2236         Likewise.
2237
2238 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2239
2240         * testsuite/23_containers/deque/48101-2_neg.cc: Replace
2241         dg-options with target selector.
2242         * testsuite/23_containers/forward_list/48101-2_neg.cc: Likewise.
2243         * testsuite/23_containers/list/48101-2_neg.cc: Likewise.
2244         * testsuite/23_containers/map/48101-2_neg.cc: Likewise.
2245         * testsuite/23_containers/map/48101_neg.cc: Likewise.
2246         * testsuite/23_containers/multimap/48101-2_neg.cc: Likewise.
2247         * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
2248         * testsuite/23_containers/multiset/48101-2_neg.cc: Likewise.
2249         * testsuite/23_containers/set/48101-2_neg.cc: Likewise.
2250         * testsuite/23_containers/unordered_map/48101-2_neg.cc:
2251         Likewise.
2252         * testsuite/23_containers/unordered_multimap/48101-2_neg.cc:
2253         Likewise.
2254         * testsuite/23_containers/unordered_multiset/48101-2_neg.cc:
2255         Likewise.
2256         * testsuite/23_containers/unordered_set/48101-2_neg.cc:
2257         Likewise.
2258         * testsuite/23_containers/vector/48101-2_neg.cc: Likewise.
2259
2260 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2261
2262         * doc/xml/manual/test.xml: Update documentation on running and
2263         writing tests.
2264         * doc/html/manual/test.html: Regenerate.
2265         * testsuite/Makefile.am: Add v3-use-std-list to site.tmp
2266         * testsuite/Makefile.in: Regenerate.
2267         * testsuite/lib/dg-options.exp (add_options_for_strict_std): New
2268         proc.
2269         * testsuite/lib/libstdc++.exp (search_for): New utility proc.
2270         (v3-dg-runtest): New proc to replace dg-runtest.
2271         * testsuite/libstdc++-dg/conformance.exp: Use v3-dg-runtest.
2272
2273 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2274
2275         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc:
2276         Fix test to work for C++23 and C++26 too.
2277
2278 2023-09-15  Patrick Palka  <ppalka@redhat.com>
2279
2280         * include/std/bit: Include <concepts>.
2281         (byteswap): Use a type-constraint instead of enable_if_t
2282         inside the return type, and use std::integral.
2283         (_If_is_unsigned_integer): Replace with ...
2284         (__unsigned_integer): ... this.
2285         (rotl): Use a type-constraint instead of enable_if_t inside
2286         the return type.
2287         (countl_zero): Likewise.
2288         (countl_one): Likewise.
2289         (countr_zero): Likewise.
2290         (countr_one): Likewise.
2291         (popcount): Likewise.
2292         (has_single_bit): Likewise.
2293         (bit_ceil): Likewise.
2294         (bit_floor): Likewise.
2295         (bit_width): Likewise.
2296
2297 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2298
2299         * include/std/variant (variant): Remove derivation from
2300         _Enable_default_constructor base class.
2301         (variant::variant()): Constrain.
2302         * testsuite/20_util/variant/default_ctor.cc: New test.
2303
2304 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2305
2306         PR libstdc++/111172
2307         * include/std/variant (get<T>): Remove !is_void static
2308         assertions.
2309
2310 2023-09-15  Jonathan Wakely  <jwakely@redhat.com>
2311
2312         * include/bits/version.def (to_chars): Define new value for
2313         C++26.
2314         * include/bits/version.h: Regenerate.
2315         * include/std/charconv (to_chars_result::operator bool): New
2316         function.
2317         (from_chars_result::operator bool): New function.
2318         * testsuite/20_util/to_chars/version.cc: Update expected value.
2319         * testsuite/20_util/from_chars/result.cc: New test.
2320         * testsuite/20_util/to_chars/result.cc: New test.
2321
2322 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2323
2324         PR c++/111357
2325         * testsuite/20_util/integer_sequence/pr111357.cc: New test.
2326
2327 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2328
2329         * testsuite/27_io/basic_filebuf/seekoff/char/1-io.cc: Use
2330         dg-additional-files. Remove @require@ and @diff@ comments.
2331         * testsuite/27_io/basic_filebuf/seekoff/char/2-io.cc: Likewise.
2332         * testsuite/27_io/basic_filebuf/seekpos/char/1-io.cc: Likewise.
2333         * testsuite/27_io/basic_filebuf/seekpos/char/2-io.cc: Likewise.
2334         * testsuite/lib/dg-options.exp (v3_additional_files): New
2335         global variable.
2336         (dg-additional-files): New proc.
2337         * testsuite/lib/libstdc++.exp (v3_target_compile): Copy
2338         additional files to test directory.
2339
2340 2023-09-14  Jonathan Wakely  <jwakely@redhat.com>
2341
2342         * include/experimental/io_context (io_context) [!_GLIBCXX_HAS_GTHREADS]:
2343         Use a plain integer for _M_work_count for single-threaded
2344         targets.
2345         * include/experimental/memory_resource (__get_default_resource)
2346         [!_GLIBCXX_HAS_GTHREADS]: Use unsynchronized type for
2347         single-threaded targets.
2348         * src/c++17/default_resource.h: Adjust preprocessor conditions
2349         to match memory_resource.cc.
2350         * src/c++17/memory_resource.cc [!_GLIBCXX_HAS_GTHREADS]
2351         (atomic_mem_res): Use unsynchronized type for single-threaded
2352         targets.
2353
2354 2023-09-14  Christophe Lyon  <christophe.lyon@linaro.org>
2355
2356         * testsuite/29_atomics/atomic/compare_exchange_padding.cc: Likewise.
2357         * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
2358         * testsuite/29_atomics/atomic_float/value_init.cc: Likewise.
2359         * testsuite/29_atomics/atomic_integral/cons/value_init.cc: Likewise.
2360         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc: Likewise.
2361         * testsuite/29_atomics/atomic_ref/generic.cc: Likewise.
2362         * testsuite/29_atomics/atomic_ref/integral.cc: Likewise.
2363         * testsuite/29_atomics/atomic_ref/pointer.cc: Likewise.
2364
2365 2023-09-14  François Dumont  <fdumont@gcc.gnu.org>
2366
2367         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Add
2368         { dg-require-normal-namespace "" }.
2369
2370 2023-09-13  François Dumont  <fdumont@gcc.gnu.org>
2371
2372         * include/std/format (std::__format::_Arg_store): Explicit version
2373         namespace on make_format_args friend declaration.
2374
2375 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2376
2377         PR libstdc++/111327
2378         * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Also define
2379         a deleted fallback operator() overload.  Constrain both the
2380         enabled and deleted overloads accordingly.
2381         * testsuite/20_util/function_objects/not_fn/111327.cc: New test.
2382
2383 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2384
2385         PR libstdc++/111327
2386         * include/std/functional (_Bind_front::operator()): Add deleted
2387         fallback overloads for each const/ref qualifier pair.  Give the
2388         enabled overloads dummy constraints to make each one more
2389         specialized than the corresponding deleted overload.
2390         * testsuite/20_util/function_objects/bind_front/111327.cc: New test.
2391
2392 2023-09-12  Patrick Palka  <ppalka@redhat.com>
2393
2394         * include/std/functional (_Bind_front0): Remove.
2395         (_Bind_front_t): Adjust.
2396
2397 2023-09-12  Jonathan Wakely  <jwakely@redhat.com>
2398
2399         * python/libstdcxx/v6/printers.py: Reformat.
2400         * python/libstdcxx/v6/xmethods.py: Likewise.
2401
2402 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2403
2404         * src/c++11/debug.cc (acquire_sequence_ptr_for_lock): New
2405         function.
2406         (reset_sequence_ptr): New function.
2407         (_Safe_iterator_base::_M_detach)
2408         (_Safe_local_iterator_base::_M_detach): Replace bare atomic_load
2409         with acquire_sequence_ptr_for_lock.
2410         (_Safe_iterator_base::_M_reset): Replace bare atomic_store with
2411         reset_sequence_ptr.
2412
2413 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2414
2415         * src/c++11/Makefile.am: Add new file.
2416         * src/c++11/Makefile.in: Regenerate.
2417         * src/c++11/debug.cc (__glibcxx_assert_fail): Move to ...
2418         * src/c++11/assert_fail.cc: New file.
2419
2420 2023-09-11  Ken Matsui  <kmatsui@gcc.gnu.org>
2421
2422         * include/bits/c++config (_GLIBCXX_HAS_BUILTIN): Do not undef.
2423         (_GLIBCXX_USE_BUILTIN_TRAIT): Define.
2424
2425 2023-09-11  Jonathan Wakely  <jwakely@redhat.com>
2426
2427         * include/bits/version.def (__cpp_lib_formatters): Define.
2428         * include/bits/version.h: Regenerate.
2429         * include/std/stacktrace (formatter<stacktrace_entry>)
2430         (formatter<basic_stacktrace<Alloc>>): Define.
2431         * include/std/thread (formatter<thread::id, charT>): Define.
2432         * testsuite/19_diagnostics/stacktrace/output.cc: New test.
2433         * testsuite/19_diagnostics/stacktrace/synopsis.cc: Add
2434         std::formatter specializations.
2435         * testsuite/19_diagnostics/stacktrace/version.cc: Check
2436         __cpp_lib_formatters macro.
2437         * testsuite/30_threads/thread/id/hash.cc: Remove gthreads
2438         dependency.
2439         * testsuite/30_threads/thread/id/operators.cc: Likewise.
2440         * testsuite/30_threads/thread/id/operators_c++20.cc: Likewise.
2441         * testsuite/30_threads/thread/id/output.cc: New test.
2442
2443 2023-09-11  Pekka Seppänen  <pexu@gcc.mail.kapsi.fi>
2444
2445         * src/c++11/cow-locale_init.cc: Add [[maybe_unused]] attribute.
2446         * src/c++17/fs_path.cc (path::_S_convert_loc): Likewise.
2447         * src/filesystem/path.cc (path::_S_convert_loc): Likewise.
2448
2449 2023-09-08  Jonathan Wakely  <jwakely@redhat.com>
2450
2451         * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++23 directory.
2452         * configure: Regenerate.
2453         * doc/html/manual/*: Regenerate.
2454         * doc/xml/manual/using.xml: Update documentation on linking.
2455         * include/std/stacktrace: Remove declarations of libbacktrace
2456         APIs.
2457         (stacktrace_entry::_S_err_handler, stacktrace_entry::_S_init):
2458         Remove.
2459         (stacktrace_entry::_Info): New class.
2460         (stacktrace_entry::_M_get_info): Use _Info.
2461         (__stacktrace_impl): New class.
2462         (basic_stacktrace): Derive from __stacktrace_impl.
2463         (basic_stacktrace::current): Use __stacktrace_impl::_S_current.
2464         * scripts/testsuite_flags.in: Adjust LDFLAGS to find
2465         libstdc++exp instead of libstdc++_libbacktrace.
2466         * src/Makefile.am (SUBDIRS): Add c++23 directory.
2467         * src/Makefile.in: Regenerate.
2468         * src/c++20/Makefile.am: Fix comment.
2469         * src/c++20/Makefile.in: Regenerate.
2470         * src/c++23/Makefile.am: New file.
2471         * src/c++23/Makefile.in: New file.
2472         * src/c++23/stacktrace.cc: New file with definitions of
2473         stacktrace_entry::_Info and __stacktrace_impl members.
2474         * src/experimental/Makefile.am: Use LIBADD to include other
2475         libraries.
2476         * src/experimental/Makefile.in: Regenerate.
2477         * src/libbacktrace/Makefile.am: Use noinst_LTLIBRARIES.
2478         * src/libbacktrace/Makefile.in: Regenerate.
2479         * testsuite/19_diagnostics/stacktrace/current.cc: Adjust
2480         dg-options to use -lstdc++exp.
2481         * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise.
2482         * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise.
2483         * testsuite/23_containers/vector/debug/assign4_backtrace_neg.cc:
2484         Likewise.
2485
2486 2023-09-08  Alexey Lapshin  <alexey.lapshin@espressif.com>
2487
2488         * src/libbacktrace/Makefile.am: Remove -Werror.
2489         * src/libbacktrace/Makefile.in: Regenerate.
2490
2491 2023-09-08  Jonathan Wakely  <jwakely@redhat.com>
2492
2493         * testsuite/Makefile.am (check-DEJAGNU): Use @ in recipe.
2494         * testsuite/Makefile.in: Regenerate.
2495
2496 2023-09-08  Yang Yujie  <yangyujie@loongson.cn>
2497
2498         * configure.host: Register t-loongarch in tmake_file.
2499         * config/cpu/loongarch/t-loongarch: New file.  Manually refresh
2500         MULTISUBDIR with $(shell $(CXX) --print-multi-directory).
2501
2502 2023-09-07  Bruno Victal  <mirai@makinata.eu>
2503
2504         * acinclude.m4: Update docbook xsl URI.
2505         * configure: Regenerate.
2506
2507 2023-09-07  Bruno Victal  <mirai@makinata.eu>
2508
2509         * doc/Makefile.am: Fix 'doc-install-info' rule.
2510         Fix typo in commment.
2511         * doc/Makefile.in: Regenerate.
2512
2513 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2514
2515         * testsuite/27_io/filesystem/path/concat/94063.cc: Simplify
2516         dg-do target selector.
2517
2518 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2519
2520         * testsuite/config/default.exp: Remove trailing whitespace.
2521         * testsuite/lib/dg-options.exp: Likewise.
2522         * testsuite/lib/prune.exp: Likewise.
2523         * testsuite/libstdc++-abi/abi.exp: Likewise.
2524         * testsuite/libstdc++-dg/conformance.exp: Likewise.
2525         * testsuite/libstdc++-prettyprinters/prettyprinters.exp:
2526         Likewise.
2527         * testsuite/libstdc++-xmethods/xmethods.exp: Likewise.
2528         * testsuite/lib/libstdc++.exp: Likewise.
2529         (check_v3_target_c_std): Fix filename for temporary source file.
2530
2531 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2532
2533         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for mkdir,
2534         chmod, chdir, and getcwd.
2535         * config.h.in: Regenerate.
2536         * configure: Regenerate.
2537         * src/c++17/fs_ops.cc (create_dir): Use USE_MKDIR macro.
2538         (fs::current_path): Use USE_GETCWD and USE_CHDIR macros.
2539         (fs::permissions): Use USE_CHMOD macro.
2540         * src/filesystem/ops-common.h [FILESYSTEM_IS_WINDOWS]
2541         (chmod, mkdir, getcwd, chdir): Define new macros.
2542         [FILESYSTEM_IS_WINDOWS] (chmod, mkdir, getcwd, chdir): Use
2543         new macros.
2544         * src/filesystem/ops.cc (create_dir): Use USE_MKDIR macro.
2545         (fs::current_path): Use USE_GETCWD and USE_CHDIR macros.
2546         (fs::permissions): Use USE_CHMOD macro.
2547
2548 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2549
2550         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Disable by default
2551         for avr.
2552         * configure: Regenerate.
2553
2554 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2555
2556         * testsuite/23_containers/unordered_map/operations/1.cc: Add
2557         dg-options for C++20 mode.
2558         * testsuite/23_containers/unordered_multimap/operations/1.cc:
2559         Likewise.
2560         * testsuite/23_containers/unordered_multiset/operations/1.cc:
2561         Likewise.
2562         * testsuite/23_containers/unordered_set/operations/1.cc:
2563         Likewise.
2564         * testsuite/std/time/parse.cc: Move dg-options before dg-do.
2565
2566 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2567
2568         * testsuite/std/ranges/access/cbegin.cc: Adjust for C++23
2569         compatibility.
2570         * testsuite/std/ranges/access/cdata.cc: Likewise.
2571         * testsuite/std/ranges/access/cend.cc: Likewise.
2572         * testsuite/std/ranges/access/crbegin.cc: Likewise.
2573         * testsuite/std/ranges/access/crend.cc: Likewise.
2574         * testsuite/std/ranges/adaptors/take.cc: Likewise.
2575         * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2576         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2577
2578 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2579
2580         * include/bits/iterator_concepts.h (__imove::iter_move): Define
2581         poison pill as deleted for consistency.
2582         (__access::begin): Replace with a single declaration.
2583         * include/bits/ranges_base.h (__access::end, __access::rbegin)
2584         (__access::rend, __access::size): Likewise.
2585         * include/bits/version.def (ranges): Update value for C++23.
2586         * include/bits/version.h: Regenerate.
2587         * libsupc++/compare (__compare): Add missing poison pill
2588         overloads.
2589         * testsuite/std/ranges/version_c++23.cc: Adjust expected value
2590         of __cpp_lib_ranges.
2591         * testsuite/std/ranges/access/p2602.cc: New test.
2592
2593 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2594
2595         * include/bits/iterator_concepts.h (ranges::__cust_imove):
2596         Rename to ranges::__imove.
2597         (_IMove): Rename to _IterMove.
2598         (ranges::__cust_iswap): Rename to ranges::__iswap.
2599         (ranges::__cust): Rename to ranges::_Cpo.
2600         (ranges::__cust_access): Rename to ranges::__access.
2601         * include/bits/ranges_base.h (ranges::__cust_access): Rename to
2602         ranges::__access.
2603         (ranges::__cust): Rename to ranges::_Cpo.
2604         * include/std/concepts (ranges::__cust_swap):  Rename to
2605         ranges::__swap.
2606         (ranges::__cust): Rename to ranges::_Cpo.
2607         * libsupc++/compare (__cmp_cust): Rename to __compare.
2608         (__cmp_algo): Rename to _Cpo.
2609
2610 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2611
2612         * include/bits/version.def (ranges): Update value.
2613         * include/bits/version.h: Regenerate.
2614         * include/std/ranges (__detail::__boxable): Use
2615         move_constructible instead of copy_constructible for C++23.
2616         (__detail::__box<T>): Adjust constraints for partial
2617         specialization.
2618         (single_view, transform_view): Use __box_constructible instead
2619         of copy_constructible in constraints.
2620         (zip_transform_view, adjacent_transform_view, repeat_view): Use
2621         move_constructible instead of copy_constructible in constraints.
2622         * testsuite/std/ranges/adaptors/adjacent_transform/1.cc: Check
2623         construction from move-only argument.
2624         * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2625         * testsuite/std/ranges/repeat/1.cc: Likewise.
2626         * testsuite/std/ranges/single_view.cc: Likewise.
2627         * testsuite/std/ranges/zip_transform/1.cc: Likewise.
2628         * testsuite/std/ranges/version_c++23.cc: Adjust expected value
2629         of __cpp_lib_ranges.
2630
2631 2023-09-07  Jonathan Wakely  <jwakely@redhat.com>
2632
2633         * testsuite/util/testsuite_iterators.h (is_customization_point_object):
2634         Remove parameter name.
2635
2636 2023-09-06  Jonathan Wakely  <jwakely@redhat.com>
2637
2638         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Disable by default
2639         for freestanding.
2640         * configure: Regenerate.
2641
2642 2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
2643
2644         Revert
2645         2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
2646
2647         PR libstdc++/111238
2648         * configure: Regenerate.
2649         * configure.ac: Call GLIBCXX_CHECK_LINKER_FEATURES in cross,
2650         non-Canadian builds.
2651
2652 2023-09-04  Christophe Lyon  <christophe.lyon@linaro.org>
2653
2654         PR libstdc++/111238
2655         * configure: Regenerate.
2656         * configure.ac: Call GLIBCXX_CHECK_LINKER_FEATURES in cross,
2657         non-Canadian builds.
2658
2659 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2660
2661         * testsuite/26_numerics/complex/literals/types.cc: Remove
2662         dg-options and add target selector instead.
2663
2664 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2665
2666         * testsuite/tr1/6_containers/utility/pair.cc: Remove dg-options
2667         and qualify ambiguous calls to get.
2668         * testsuite/tr1/8_c_compatibility/cmath/pow_cmath.cc: Adjust
2669         expected result for std::pow(float, int) as per DR 550.
2670
2671 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2672
2673         * testsuite/20_util/auto_ptr/1.cc: Remove dg-options -std=c++03
2674         and add dg-warning for deprecation warnings.
2675         * testsuite/20_util/auto_ptr/2.cc: Likewise.
2676         * testsuite/20_util/auto_ptr/3.cc: Likewise.
2677         * testsuite/20_util/auto_ptr/3946.cc: Likewise.
2678         * testsuite/20_util/auto_ptr/4.cc: Likewise.
2679         * testsuite/20_util/auto_ptr/5.cc: Likewise.
2680         * testsuite/20_util/auto_ptr/6.cc: Likewise.
2681         * testsuite/20_util/auto_ptr/7.cc: Likewise.
2682         * testsuite/20_util/auto_ptr/assign_neg.cc: Likewise.
2683         * testsuite/20_util/auto_ptr/requirements/explicit_instantiation/1.cc:
2684         Likewise.
2685         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr.cc:
2686         Likewise.
2687         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr_neg.cc:
2688         Likewise.
2689         * testsuite/tr1/2_general_utilities/shared_ptr/assign/auto_ptr_rvalue_neg.cc:
2690         Likewise.
2691         * testsuite/tr1/2_general_utilities/shared_ptr/cons/43820_neg.cc:
2692         Likewise.
2693         * testsuite/tr1/2_general_utilities/shared_ptr/cons/auto_ptr.cc:
2694         Likewise.
2695         * testsuite/tr1/2_general_utilities/shared_ptr/cons/auto_ptr_neg.cc:
2696         Likewise.
2697
2698 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2699
2700         PR libstdc++/26142
2701         * testsuite/23_containers/vector/26412-1.cc: Moved to...
2702         * testsuite/23_containers/vector/26142-1.cc: ...here.
2703         * testsuite/23_containers/vector/26412-2.cc: Moved to...
2704         * testsuite/23_containers/vector/26142-2.cc: ...here.
2705
2706 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2707
2708         * testsuite/20_util/bitset/107037.cc: Add c++98_only selector.
2709         * testsuite/26_numerics/complex/56111.cc: Likewise.
2710
2711 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2712
2713         * testsuite/23_containers/deque/requirements/explicit_instantiation/2.cc:
2714         Add dg-options to restrict the test to C++98 mode.
2715         * testsuite/23_containers/list/requirements/explicit_instantiation/2.cc:
2716         Likewise.
2717
2718 2023-09-04  Jonathan Wakely  <jwakely@redhat.com>
2719
2720         * testsuite/20_util/expected/bad.cc: Add missing target
2721         selector.
2722
2723 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2724
2725         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Adjust
2726         expected errors.
2727         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
2728         Likewise.
2729
2730 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2731
2732         * testsuite/27_io/filesystem/iterators/91067.cc: Add
2733         -Wno-self-move to options.
2734         * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
2735
2736 2023-09-01  Vladimir Palevich  <palevichva@gmail.com>
2737
2738         PR libstdc++/110879
2739         * include/bits/vector.tcc (_M_realloc_insert): End guard
2740         lifetime just before assignment to class members.
2741         (_M_default_append): Likewise.
2742
2743 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2744
2745         * src/c++17/fs_ops.cc (fs::absolute) [FILESYSTEM_IS_WINDOWS]:
2746         Use __resize_and_overwrite to fill buffer.
2747         (fs::read_symlink) [HAVE_READLINK]: Likewise.
2748         * src/filesystem/ops-common.h (get_temp_directory_from_env)
2749         [FILESYSTEM_IS_WINDOWS]: Likewise.
2750
2751 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2752
2753         PR libstdc++/111077
2754         * include/bits/atomic_base.h (__atomic_impl::__compare_exchange):
2755         Add _AtomicRef non-type template parameter and use a loop if it
2756         is true.
2757         (__atomic_impl::compare_exchange_weak): Add _AtomicRef NTTP.
2758         (__atomic_impl::compare_exchange_strong): Likewise.
2759         (atomic_ref::compare_exchange_weak): Use true for NTTP.
2760         (atomic_ref::compare_exchange_strong): Use true for NTTP.
2761         * testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc:
2762         Fix test to not rely on atomic_ref::load() to return an object
2763         with padding preserved.
2764
2765 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2766
2767         * testsuite/27_io/filesystem/path/108636.cc: Add dg-require for
2768         filesystem support.
2769
2770 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2771
2772         * src/c++20/tzdb.cc (tzdb::current_zone): Check configure macros
2773         for POSIX readlink before using filesystem::read_symlink.
2774
2775 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2776
2777         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Default to yes.
2778         * configure: Regenerate.
2779
2780 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2781
2782         * include/bits/chrono_io.h (_Parser::operator()): Set failbit
2783         early if invalid values are read when _M_need & _TimeOfDay is
2784         non-zero.
2785         * testsuite/std/time/parse.cc: Check that "25:59" cannot be
2786         parsed for "%H:%M".
2787
2788 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2789
2790         PR libstdc++/111162
2791         * include/bits/chrono_io.h (_Parser::Operator()): Check %C
2792         values are in range of year::min() to year::max().
2793         * testsuite/std/time/parse.cc: Check out of range centuries.
2794
2795 2023-09-01  Jonathan Wakely  <jwakely@redhat.com>
2796
2797         * include/std/format (__format::_Sink::_M_reset): Change second
2798         argument from iterator to offset.
2799
2800 2023-08-24  Paul Dreik  <gccpatches@pauldreik.se>
2801
2802         PR libstdc++/111102
2803         * testsuite/std/format/string.cc: Check wide character format
2804         strings with out-of-range widths.
2805
2806 2023-08-24  Paul Dreik  <gccpatches@pauldreik.se>
2807
2808         PR libstdc++/111102
2809         * include/std/format (__format::__parse_integer): Check for
2810         non-null pointer.
2811
2812 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2813
2814         * testsuite/std/format/functions/format_to.cc: Avoid warning for
2815         unused variables.
2816
2817 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2818
2819         * include/std/atomic: Add comment to #ifdef and fix indentation.
2820         * include/std/ostream: Check __glibcxx_syncbuf instead of
2821         __cplusplus and _GLIBCXX_HOSTED.
2822         * include/std/thread: Add comment to #ifdef.
2823
2824 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2825
2826         * include/bits/version.def (__cpp_lib_ratio): Define.
2827         * include/bits/version.h: Regenerate.
2828         * include/std/ratio (quecto, ronto, yocto, zepto)
2829         (zetta, yotta, ronna, quetta): Define.
2830         * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Adjust
2831         dg-error line numbers.
2832
2833 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2834
2835         * python/libstdcxx/v6/printers.py (StdLocalePrinter): New
2836         printer class.
2837         * testsuite/libstdc++-prettyprinters/locale.cc: New test.
2838
2839 2023-08-24  Jonathan Wakely  <jwakely@redhat.com>
2840
2841         PR libstdc++/110944
2842         * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Do
2843         not show template arguments.
2844         (StdVariantPrinter): Likewise.
2845         * testsuite/libstdc++-prettyprinters/compat.cc: Adjust expected
2846         output.
2847         * testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
2848         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
2849
2850 2023-08-23  François Dumont  <fdumont@gcc.gnu.org>
2851
2852         * testsuite/util/replacement_memory_operators.h
2853         (counter::scope): New, capture and reset counter count at construction and
2854         restore it at destruction.
2855         (counter::check_new): Add scope instantiation.
2856         * testsuite/23_containers/unordered_map/96088.cc (main):
2857         Add counter::scope instantiation.
2858         * testsuite/23_containers/unordered_multimap/96088.cc (main): Likewise.
2859         * testsuite/23_containers/unordered_multiset/96088.cc (main): Likewise.
2860         * testsuite/23_containers/unordered_set/96088.cc (main): Likewise.
2861         * testsuite/ext/malloc_allocator/deallocate_local.cc (main): Likewise.
2862         * testsuite/ext/new_allocator/deallocate_local.cc (main): Likewise.
2863         * testsuite/ext/throw_allocator/deallocate_local.cc (main): Likewise.
2864         * testsuite/ext/pool_allocator/allocate_chunk.cc (started): New global.
2865         (operator new(size_t)): Check started.
2866         (main): Set/Unset started.
2867         * testsuite/17_intro/no_library_allocation.cc: New test case.
2868
2869 2023-08-21  Jonathan Wakely  <jwakely@redhat.com>
2870
2871         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
2872         Call std::set_terminate before throwing the nested exception.
2873
2874 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
2875
2876         PR target/111060
2877         * include/std/format (formatter): Only define specializations
2878         for 16-bit floating-point types for C++23.
2879         * include/std/limits (numeric_limits): Likewise.
2880
2881 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
2882
2883         * include/bits/chrono_io.h (operator<<): Make uses of wide
2884         strings with streams and std::format type-dependent on _CharT.
2885         * include/std/format [!_GLIBCXX_USE_WCHAR_T] Do not use
2886         __to_wstring_numeric.
2887
2888 2023-08-18  Jonathan Wakely  <jwakely@redhat.com>
2889
2890         * include/bits/chrono_io.h (operator<<): Use __format_context.
2891         * include/std/format (__format::__format_context): New alias
2892         template.
2893         [!_GLIBCXX_USE_WCHAR_T] (wformat_args, make_wformat_arg):
2894         Disable.
2895
2896 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2897
2898         Revert:
2899         2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2900
2901         * config/locale/generic/c_locale.cc (__convert_to_v): Reuse
2902         double overload for long double if possible.
2903
2904 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2905
2906         * src/c++20/tzdb.cc (tzdata_file, leaps_file): Change type to
2907         std::string_view.
2908
2909 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2910
2911         * config/locale/generic/c_locale.cc (__convert_to_v): Reuse
2912         double overload for long double if possible.
2913
2914 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2915
2916         * src/c++98/localename.cc (is_C_locale): New function.
2917         (locale::locale(const char*)): Use is_C_locale.
2918
2919 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2920
2921         PR libstdc++/110945
2922         * include/bits/basic_string.h (basic_string::assign(Iter, Iter)):
2923         Dispatch to _M_replace or move assignment from a temporary,
2924         based on the iterator type.
2925
2926 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2927
2928         * include/std/format (formatter): Add partial specializations
2929         for extended floating-point types.
2930         * testsuite/std/format/functions/format.cc: Move test_float128()
2931         to ...
2932         * testsuite/std/format/formatter/ext_float.cc: New test.
2933
2934 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2935
2936         * include/bits/c++config (__gnu_cxx::__bfloat16_t): Define
2937         whenever __BFLT16_DIG__ is defined, not only for C++23.
2938         * include/std/limits (numeric_limits<bfloat16_t>): Likewise.
2939         (numeric_limits<_Float16>, numeric_limits<_Float32>)
2940         (numeric_limits<_Float64>): Likewise for other extended
2941         floating-point types.
2942
2943 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2944
2945         * include/experimental/internet (address_v4::to_string): Remove
2946         unused parameter name.
2947
2948 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2949
2950         * libsupc++/compare (__cmp_cat::__unseq): Make ctor consteval.
2951         * testsuite/18_support/comparisons/categories/zero_neg.cc: Prune
2952         excess errors caused by invalid consteval calls.
2953
2954 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2955
2956         * include/bits/chrono_io.h (__units_suffix_misc): Remove.
2957         (__units_suffix): Return a known suffix as string view, do not
2958         write unknown suffixes to a buffer.
2959         (__fmt_units_suffix): New function that formats the suffix using
2960         std::format_to.
2961         (operator<<, __chrono_formatter::_M_q): Use __fmt_units_suffix.
2962         (__chrono_formatter::_M_Z): Correct lifetime of wstring.
2963
2964 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2965
2966         * include/std/format [_GLIBCXX_USE_WCHAR_T]: Guard all wide
2967         string formatters with this macro.
2968         (__formatter_int::_M_format_int, __formatter_fp::format)
2969         (formatter<const void*, C>::format): Use __to_wstring_numeric
2970         instead of std::ctype::widen.
2971         (__formatter_fp::_M_localize): Use hardcoded wchar_t values
2972         instead of std::ctype::widen.
2973         * testsuite/std/format/functions/format.cc: Add more checks for
2974         wstring formatting of arithmetic types.
2975
2976 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2977
2978         * include/bits/basic_string.h (to_string(floating-point-type)):
2979         Implement using std::to_chars for C++26.
2980         * include/bits/version.def (__cpp_lib_to_string): Define.
2981         * include/bits/version.h: Regenerate.
2982         * testsuite/21_strings/basic_string/numeric_conversions/char/dr1261.cc:
2983         Adjust expected result in C++26 mode.
2984         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string.cc:
2985         Likewise.
2986         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/dr1261.cc:
2987         Likewise.
2988         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/to_wstring.cc:
2989         Likewise.
2990         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_float.cc:
2991         New test.
2992         * testsuite/21_strings/basic_string/numeric_conversions/wchar_t/to_wstring_float.cc:
2993         New test.
2994         * testsuite/21_strings/basic_string/numeric_conversions/version.cc:
2995         New test.
2996
2997 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
2998
2999         * include/bits/basic_string.h (to_string(integral-type)): Use
3000         resize_and_overwrite when available.
3001         (__to_wstring_numeric): New helper functions.
3002         (to_wstring): Use std::to_string then __to_wstring_numeric.
3003         * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_int.cc:
3004         Remove check for no excess capacity.
3005
3006 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3007
3008         * include/bits/basic_string.h (__resize_and_overwrite): New
3009         function.
3010         * include/bits/basic_string.tcc (__resize_and_overwrite): New
3011         function.
3012         (resize_and_overwrite): Simplify by using reserve instead of
3013         growing the string manually. Adjust for C++11 compatibility.
3014         * include/bits/cow_string.h (resize_and_overwrite): New
3015         function.
3016         (__resize_and_overwrite): New function.
3017         * include/bits/version.def (__cpp_lib_string_resize_and_overwrite):
3018         Do not depend on cxx11abi.
3019         * include/bits/version.h: Regenerate.
3020         * include/std/format (__formatter_fp::_S_resize_and_overwrite):
3021         Remove.
3022         (__formatter_fp::format, __formatter_fp::_M_localize): Use
3023         __resize_and_overwrite instead of _S_resize_and_overwrite.
3024         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
3025         Adjust for C++11 compatibility when included by ...
3026         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite_ext.cc:
3027         New test.
3028
3029 2023-08-17  Patrick Palka  <ppalka@redhat.com>
3030
3031         * include/bits/regex.h (regex_iterator::iterator_concept):
3032         Define for C++20 as per P2770R0.
3033         (regex_token_iterator::iterator_concept): Likewise.
3034         * include/std/ranges (__detail::__as_lvalue): Define.
3035         (join_view::_Iterator): Befriend join_view.
3036         (join_view::_Iterator::_M_satisfy): Use _M_get_outer
3037         instead of _M_outer.
3038         (join_view::_Iterator::_M_get_outer): Define.
3039         (join_view::_Iterator::_Iterator): Split constructor taking
3040         _Parent argument into two as per P2770R0.  Remove constraint on
3041         default constructor.
3042         (join_view::_Iterator::_M_outer): Make this data member present
3043         only when the underlying range is forward.
3044         (join_view::_Iterator::operator++): Use _M_get_outer instead of
3045         _M_outer.
3046         (join_view::_Iterator::operator--): Use __as_lvalue helper.
3047         (join_view::_Iterator::operator==): Adjust constraints as per
3048         P2770R0.
3049         (join_view::_Sentinel::__equal): Use _M_get_outer instead of
3050         _M_outer.
3051         (join_view::_M_outer): New data member when the underlying range
3052         is non-forward.
3053         (join_view::begin): Adjust definition as per P2770R0.
3054         (join_view::end): Likewise.
3055         (join_with_view::_M_outer_it): New data member when the
3056         underlying range is non-forward.
3057         (join_with_view::begin): Adjust definition as per P2770R0.
3058         (join_with_view::end): Likewise.
3059         (join_with_view::_Iterator::_M_outer_it): Make this data member
3060         present only when the underlying range is forward.
3061         (join_with_view::_Iterator::_M_get_outer): Define.
3062         (join_with_view::_Iterator::_Iterator): Split constructor
3063         taking _Parent argument into two as per P2770R0.  Remove
3064         constraint on default constructor.
3065         (join_with_view::_Iterator::_M_update_inner): Adjust definition
3066         as per P2770R0.
3067         (join_with_view::_Iterator::_M_get_inner): Likewise.
3068         (join_with_view::_Iterator::_M_satisfy): Adjust calls to
3069         _M_get_inner.  Use _M_get_outer instead of _M_outer_it.
3070         (join_with_view::_Iterator::operator==): Adjust constraints
3071         as per P2770R0.
3072         (join_with_view::_Sentinel::operator==): Use _M_get_outer
3073         instead of _M_outer_it.
3074         * testsuite/std/ranges/adaptors/p2770r0.cc: New test.
3075
3076 2023-08-17  Patrick Palka  <ppalka@redhat.com>
3077
3078         PR libstdc++/108827
3079         * include/std/ranges (__adaptor::_RangeAdaptorClosure):
3080         Convert into a CRTP class template.  Move hidden operator|
3081         friends into namespace scope and adjust their constraints.
3082         (__closure::__is_range_adaptor_closure_fn): Define.
3083         (__closure::__is_range_adaptor_closure): Define.
3084         (__adaptor::_Partial): Adjust use of _RangeAdaptorClosure.
3085         (__adaptor::_Pipe): Likewise.
3086         (views::_All): Likewise.
3087         (views::_Join): Likewise.
3088         (views::_Common): Likewise.
3089         (views::_Reverse): Likewise.
3090         (views::_Elements): Likewise.
3091         (views::_Adjacent): Likewise.
3092         (views::_AsRvalue): Likewise.
3093         (views::_Enumerate): Likewise.
3094         (views::_AsConst): Likewise.
3095         * testsuite/std/ranges/adaptors/all.cc: Reinstate assertion
3096         expecting that adding empty range adaptor closure objects to a
3097         pipeline doesn't increase the size of a pipeline.
3098
3099 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3100
3101         * include/std/format (__format::_Pres_type): Add _Pres_F.
3102         (__formatter_fp::parse): Use _Pres_F for 'F'.
3103         (__formatter_fp::format): Set __upper for _Pres_F.
3104         * testsuite/std/format/functions/format.cc: Check formatting of
3105         infinity and NaN for each presentation type.
3106
3107 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3108
3109         * include/Makefile.in: Regenerate.
3110
3111 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3112
3113         * testsuite/24_iterators/move_iterator/p2520r0.cc: Add no_pch.
3114         * testsuite/std/format/functions/format.cc: Likewise.
3115         * testsuite/std/format/functions/format_c++23.cc: Likewise.
3116
3117 2023-08-17  Jonathan Wakely  <jwakely@redhat.com>
3118
3119         * testsuite/lib/dg-options.exp (add_options_for_no_pch): Remove
3120         any "-include bits/stdc++.h" from options and add the macro to
3121         the existing options instead of replacing them.
3122
3123 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
3124
3125         * include/bits/basic_string.tcc (resize_and_overwrite): Invoke
3126         the callable with the same size as resize_and_overwrite was
3127         called with.
3128         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
3129         Check with small values for the new size.
3130         * testsuite/std/format/functions/format.cc: Check wide
3131         formatting of double values that produce small strings.
3132         * testsuite/std/format/functions/format_c++23.cc: New test.
3133
3134 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
3135
3136         * include/bits/version.def (stds): Update value for C++23.
3137         * include/bits/version.h: Regenerate.
3138
3139 2023-08-16  Jonathan Wakely  <jwakely@redhat.com>
3140
3141         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
3142         Fix name of upstream file this was derived from.
3143         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
3144         Likewise.
3145         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
3146         Likewise.
3147         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
3148         Likewise.
3149         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h: Likewise.
3150
3151 2023-08-16  Arsen Arsenović  <arsen@aarsen.me>
3152
3153         * libsupc++/typeinfo: Switch to bits/version.h for
3154         __cpp_lib_constexpr_typeinfo.
3155         * libsupc++/new: Switch to bits/version.h for
3156         __cpp_lib_{launder,hardware_interference_size,destroying_delete}.
3157         (launder): Guard behind __cpp_lib_launder.
3158         (hardware_destructive_interference_size)
3159         (hardware_constructive_interference_size): Guard behind
3160         __cpp_lib_hardware_interference_size.
3161         * libsupc++/exception: Switch to bits/version.h for
3162         __cpp_lib_uncaught_exceptions.
3163         (uncaught_exceptions): Guard behind __cpp_lib_uncaught_exceptions.
3164         * libsupc++/compare: Switch to bits/version.h for
3165         __cpp_lib_three_way_comparison.
3166         (three_way_comparable, three_way_comparable_with)
3167         (compare_three_way, weak_order, strong_order, partial_order):
3168         Guard behind __cpp_lib_three_way_comparison >= 201907L.
3169         * include/std/chrono: Drop __cpp_lib_chrono definition.
3170         * include/std/vector: Switch to bits/version.h for
3171         __cpp_lib_erase_if.
3172         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3173         * include/std/variant: Switch to bits/version.h for
3174         __cpp_lib_variant.  Guard whole header behind that FTM.
3175         * include/std/utility: Switch to bits/version.h for
3176         __cpp_lib_{exchange_function,constexpr_algorithms,as_const},
3177         __cpp_lib_{integer_comparison_functions,to_underlying}, and
3178         __cpp_lib_unreachable.
3179         (exchange): Guard behind __cpp_lib_exchange_function.
3180         (cmp_equal, cmp_not_equal, cmp_less, cmp_greater, cmp_less_equal)
3181         (cmp_greater_equal, in_range): Guard behind
3182         __cpp_lib_integer_comparison_functions.
3183         (to_underlying): Guard behind __cpp_lib_to_underlying.
3184         (unreachable): Guard behind __cpp_lib_unreachable.
3185         * include/std/type_traits: Switch to bits/version.h for
3186         __cpp_lib_is_{null_pointer,final,nothrow_convertible,aggregate},
3187         __cpp_lib_is_{constant_evaluated,invocable,layout_compatible},
3188         __cpp_lib_is_{pointer_interconvertible,scoped_enum,swappable},
3189         __cpp_lib_{logical_traits,reference_from_temporary,remove_cvref},
3190         __cpp_lib_{result_of_sfinae,transformation_trait_aliases},
3191         __cpp_lib_{type_identity,type_trait_variable_templates},
3192         __cpp_lib_{unwrap_ref,void_t,integral_constant_callable},
3193         __cpp_lib_{bool_constant,bounded_array_traits}, and
3194         __cpp_lib_has_unique_object_representations.
3195         (integral_constant::operator()): Guard behind
3196         __cpp_lib_integral_constant_callable.
3197         (bool_constant): Guard behind __cpp_lib_bool_constant.
3198         (conjunction, disjunction, negation, conjunction_v, disjunction_v)
3199         (negation_v): Guard behind __cpp_lib_logical_traits.
3200         (is_null_pointer): Guard behind __cpp_lib_is_null_pointer.
3201         (is_final): Guard behind __cpp_lib_is_final.
3202         (is_nothrow_convertible, is_nothrow_convertible_v): Guard behind
3203         __cpp_lib_is_nothrow_convertible.
3204         (remove_const_t, remove_volatile_t, remove_cv_t)
3205         (add_const_t, add_volatile_t, add_cv_t): Guard behind
3206         __cpp_lib_transformation_trait_aliases.
3207         (void_t): Guard behind __cpp_lib_void_t.
3208         (is_swappable_with_v, is_nothrow_swappable_with_v)
3209         (is_swappable_with, is_nothrow_swappable_with): Guard behind
3210         __cpp_lib_is_swappable.
3211         (is_nothrow_invocable_r, is_invocable_r, invoke_result)
3212         (is_invocable, invoke_result_t): Guard behind
3213         __cpp_lib_is_invocable.
3214         (alignment_of_v, extent_v, has_virtual_destructor_v)
3215         (is_abstract_v, is_arithmetic_v, is_array_v)
3216         (is_assignable_v, is_base_of_v, is_class_v, is_compound_v)
3217         (is_constructible_v, is_const_v, is_convertible_v)
3218         (is_copy_assignable_v, is_copy_constructible_v)
3219         (is_default_constructible_v, is_destructible_v)
3220         (is_empty_v, is_enum_v, is_final_v, is_floating_point_v)
3221         (is_function_v, is_fundamental_v, is_integral_v)
3222         (is_invocable_r_v, is_invocable_v, is_literal_type_v)
3223         (is_lvalue_reference_v, is_member_function_pointer_v)
3224         (is_member_object_pointer_v, is_member_pointer_v)
3225         (is_move_assignable_v, is_move_constructible_v)
3226         (is_nothrow_assignable_v, is_nothrow_constructible_v)
3227         (is_nothrow_copy_assignable_v, is_nothrow_copy_constructible_v)
3228         (is_nothrow_default_constructible_v, is_nothrow_destructible_v)
3229         (is_nothrow_invocable_r_v, is_nothrow_invocable_v)
3230         (is_nothrow_move_assignable_v, is_nothrow_move_constructible_v)
3231         (is_null_pointer_v, is_object_v, is_pod_v, is_pointer_v)
3232         (is_polymorphic_v, is_reference_v, is_rvalue_reference_v)
3233         (is_same_v, is_scalar_v, is_signed_v, is_standard_layout_v)
3234         (is_trivially_assignable_v, is_trivially_constructible_v)
3235         (is_trivially_copyable_v, is_trivially_copy_assignable_v)
3236         (is_trivially_copy_constructible_v)
3237         (is_trivially_default_constructible_v)
3238         (is_trivially_destructible_v, is_trivially_move_assignable_v)
3239         (is_trivially_move_constructible_v, is_trivial_v, is_union_v)
3240         (is_unsigned_v, is_void_v, is_volatile_v, rank_v, as variadic):
3241         Guard behind __cpp_lib_type_trait_variable_templates.
3242         (has_unique_object_representations)
3243         (has_unique_object_representations_v): Guard behind
3244         __cpp_lib_has_unique_object_representation.
3245         (is_aggregate): Guard behind __cpp_lib_is_aggregate.
3246         (remove_cvref, remove_cvref_t): Guard behind
3247         __cpp_lib_remove_cvref.
3248         (type_identity, type_identity_t): Guard behind
3249         __cpp_lib_type_identity.
3250         (unwrap_reference, unwrap_reference_t, unwrap_ref_decay)
3251         (unwrap_ref_decay_t): Guard behind __cpp_lib_unwrap_ref.
3252         (is_bounded_array_v, is_unbounded_array_v, is_bounded_array)
3253         (is_unbounded_array): Guard behind __cpp_lib_bounded_array_traits.
3254         (is_scoped_enum, is_scoped_enum_v): Guard behind
3255         __cpp_lib_is_scoped_enum.
3256         (reference_constructs_from_temporary)
3257         (reference_constructs_from_temporary_v): Guard behind
3258         __cpp_lib_reference_from_temporary.
3259         * include/std/tuple: Switch to bits/version.h for
3260         __cpp_lib_{constexpr_tuple,tuple_by_type,apply_make_from_tuple}.
3261         (get<T>): Guard behind __cpp_lib_tuple_by_type.
3262         (apply): Guard behind __cpp_lib_apply.
3263         (make_from_tuple): Guard behind __cpp_lib_make_from_tuple.
3264         * include/std/syncstream: Switch to bits/version.h for
3265         __cpp_lib_syncbuf.  Guard header behind that FTM.
3266         * include/std/string_view: Switch to bits/version.h for
3267         __cpp_lib_{string_{view,contains},constexpr_string_view} and
3268         __cpp_lib_starts_ends_with.
3269         (basic_string_view::starts_with, basic_string_view::ends_with):
3270         Guard behind __cpp_lib_starts_ends_with.
3271         [C++23 && _GLIBCXX_HOSTED && !defined(__cpp_lib_string_contains)]:
3272         Assert as impossible ithout a bug in C++23.
3273         * include/std/string: Switch to bits/version.h for
3274         __cpp_lib_erase_if.
3275         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3276         * include/std/thread: Switch to bits/version.h for
3277         __cpp_lib_jthread.
3278         * include/std/stop_token: Switch to bits/version.h for
3279         __cpp_lib_jthread.
3280         * include/std/spanstream: Switch to bits/version.h for
3281         __cpp_lib_spanstream.  Guard header behind that FTM.
3282         * include/std/span: Switch to bits/version.h for __cpp_lib_span.
3283         Guard header behind that FTM.
3284         * include/std/source_location: Switch to bits/version.h for
3285         __cpp_lib_source_location.  Guard header with that FTM.
3286         * include/std/shared_mutex: Switch to bits/version.h for
3287         __cpp_lib_shared{,_timed}_mutex.
3288         (shared_mutex): Guard behind __cpp_lib_shared_mutex.
3289         * include/std/semaphore: Switch to bits/version.h for
3290         __cpp_lib_semaphore.  Guard header behind that FTM.
3291         * include/std/ranges: Switch to bits/version.h for
3292         __cpp_lib_ranges_{zip,chunk{,_by},slide,join_with},
3293         __cpp_lib_ranges_{repeat_stride,cartesian_product,as_rvalue},
3294         and __cpp_lib_ranges_{as_const,enumerate,iota}.
3295         (ranges::zip et al, ranges::chunk et al, ranges::slide et al)
3296         (ranges::chunk_by et al, ranges::join_with et al)
3297         (ranges::stride et al, ranges::cartesian_product et al)
3298         (ranges::as_rvalue et al, ranges::as_const et al)
3299         (ranges::enumerate et al): Guard behind appropriate FTM.
3300         * include/std/optional: Switch to bits/version.h for
3301         __cpp_lib_optional.  Guard header behind that FTM.
3302         * include/std/numeric: Switch to bits/version.h for
3303         __cpp_lib_{gcd{,_lcm},lcm,constexpr_numeric,interpolate}
3304         and __cpp_lib_parallel_algorithm.
3305         (gcd, lcm): Guard behind __cpp_lib_gcd_lcm.
3306         (midpoint): Guard behind __cpp_lib_interpolate.
3307         * include/std/numbers: Switch to bits/version.h for
3308         __cpp_lib_math_constants.  Guard header behind that FTM.
3309         * include/std/mutex: Switch to bits/version.h for
3310         __cpp_lib_scoped_lock.
3311         (scoped_Lock): Guard behind __cpp_lib_scoped_lock.
3312         * include/std/memory_resource: Switch to bits/version.h for
3313         __cpp_lib_{polymorphic_allocator,memory_resource}.
3314         (synchronized_pool_resource): Guard behind
3315         __cpp_lib_memory_resource >= 201603L.
3316         (polymorphic_allocator): Guard behind
3317         __cpp_lib_polymorphic_allocator.
3318         * include/std/memory: Switch to bits/version.h for
3319         __cpp_lib_{parallel_algorithm,atomic_value_initialization}.
3320         * include/std/list: Switch to bits/version.h for
3321         __cpp_lib_erase_if.
3322         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3323         * include/std/latch: Switch to bits/version.h for __cpp_lib_latch.
3324         Guard header behind that FTM.
3325         * include/std/iterator: Switch to bits/version.h for
3326         __cpp_lib_null_iterators.
3327         * include/std/iomanip: Switch to bits/version.h for
3328         __cpp_lib_quoted_string_io.
3329         (quoted): Guard behind __cpp_lib_quoted_string_io.
3330         * include/std/functional: Switch to bits/version.h for
3331         __cpp_lib_{invoke{,_r},constexpr_functional,bind_front} and
3332         __cpp_lib_{not_fn,booyer_moore_searcher}.
3333         (invoke): Guard behind __cpp_lib_invoke.
3334         (invoke_r): Guard behind __cpp_lib_invoke_r.
3335         (bind_front): Guard behind __cpp_lib_bind_front.
3336         (not_fn): Guard behind __cpp_lib_not_fn.
3337         (boyer_moore_searcher, boyer_moore_horspool_searcher): Guard
3338         definition behind __cpp_lib_boyer_moore_searcher.
3339         * include/std/forward_list: Switch to bits/version.h for
3340         __cpp_lib_erase_if.
3341         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3342         * include/std/format: Switch to bits/version.h for
3343         __cpp_lib_format.  Guard header behind that FTM.
3344         * include/std/filesystem: Switch to bits/version.h for
3345         __cpp_lib_filesystem.  Guard header behind that FTM.
3346         * include/std/expected: Switch to bits/version.h for
3347         __cpp_lib_expected.  Guard header behind it.
3348         * include/std/execution: Switch to bits/version.h for
3349         __cpp_lib_{execution,parallel_algorithm}.  Guard header behind
3350         either.
3351         * include/std/deque: Switch to bits/version.h for
3352         __cpp_lib_erase_if.
3353         (erase, erase_if): Guard behind __cpp_lib_erase_if.
3354         * include/std/coroutine: Switch to bits/version.h for
3355         __cpp_lib_coroutine.  Guard header behind that FTM.
3356         * include/std/concepts: Switch to bits/version.h for
3357         __cpp_lib_concepts.  Guard header behind that FTM.
3358         * include/std/complex: Switch to bits/version.h for
3359         __cpp_lib_{complex_udls,constexpr_complex}.
3360         (operator""if, operator""i, operator""il): Guard behind
3361         __cpp_lib_complex_udls.
3362         * include/std/charconv: Swtich to bits/version.h for
3363         __cpp_lib_{to_chars,constexpr_charconv}.
3364         * include/std/bitset: Switch to bits/version.h for
3365         __cpp_lib_constexpr_bitset.
3366         * include/std/bit: Switch to bits/version.h for
3367         __cpp_lib_{bit_cast,byteswap,bitops,int_pow2,endian}.
3368         (bit_cast): Guard behind __cpp_lib_bit_cast.
3369         (byteswap): Guard behind __cpp_lib_byteswap.
3370         (rotl, rotr, countl_zero, countl_one, countr_zero, countr_one)
3371         (popcount): Guard behind __cpp_lib_bitops.
3372         (has_single_bit, bit_ceil, bit_floor, bit_width): Guard behind
3373         __cpp_lib_int_pow2.
3374         (endian): Guard behind __cpp_lib_endian.
3375         * include/std/barrier: Switch to bits/version.h for
3376         __cpp_lib_barrier.  Guard header behind that FTM.
3377         * include/std/atomic: Switch to bits/version.h for
3378         __cpp_lib_atomic_{is_always_lock_free,float,ref}
3379         and __cpp_lib_lock_free_type_aliases.
3380         (*::is_always_lock_free): Guard behind
3381         __cpp_lib_atomic_is_always_lock_free.
3382         (atomic<float>): Guard behind __cpp_lib_atomic_float.
3383         (atomic_ref): Guard behind __cpp_lib_atomic_ref.
3384         (atomic_signed_lock_free, atomic_unsigned_lock_free): Guard behind
3385         __cpp_lib_atomic_lock_free_type_aliases.
3386         * include/std/array: Switch to bits/version.h for
3387         __cpp_lib_to_array.
3388         (to_array): Guard behind __cpp_lib_to_array.
3389         * include/std/any: Switch to bits/version.h for __cpp_lib_any.
3390         Guard header behind that FTM.
3391         * include/std/algorithm: Switch to bits/version.h for
3392         __cpp_lib_parallel_algorithm.
3393         * include/c_global/cstddef: Switch to bits/version.h for
3394         __cpp_lib_byte.
3395         (byte): Guard behind __cpp_lib_byte.
3396         * include/c_global/cmath: Switch to bits/version.h for
3397         __cpp_lib_{hypot,interpolate}.
3398         (hypot3): Guard behind __cpp_lib_hypot.
3399         (lerp): Guard behind __cpp_lib_interpolate.
3400         * include/c_compatibility/stdatomic.h: Switch to
3401         bits/stl_version.h for __cpp_lib_atomic.  Guard header behind that
3402         FTM.
3403         * include/bits/utility.h: Switch to bits/version.h for
3404         __cpp_lib_{tuple_element_t,integer_sequence,ranges_zip}.
3405         (tuple_element_t): Guard behind __cpp_lib_tuple_element_t.
3406         (integer_sequence et al): Guard behind __cpp_lib_integer_sequence.
3407         * include/bits/uses_allocator_args.h: Switch to bits/version.h for
3408         __cpp_lib_make_obj_using_allocator.  Guard header behind that FTM.
3409         * include/bits/unordered_map.h: Switch to bits/version.h for
3410         __cpp_lib_unordered_map_try_emplace.
3411         (try_emplace): Guard behind __cpp_lib_unordered_map_try_emplace.
3412         * include/bits/unique_ptr.h: Switch to bits/version.h for
3413         __cpp_lib_{constexpr_memory,make_unique}.
3414         (make_unique): Guard behind __cpp_lib_make_unique.
3415         * include/bits/stl_vector.h: Switch to bits/version.h for
3416         __cpp_lib_constexpr_vector.
3417         * include/bits/stl_uninitialized.h: Switch to bits/version.h for
3418         __cpp_lib_raw_memory_algorithms.
3419         (uninitialized_default_construct)
3420         (uninitialized_default_construct_n, uninitialized_move)
3421         (uninitialized_move_n, uninitialized_value_construct)
3422         (uninitialized_value_construct_n): Guard behind
3423         __cpp_lib_raw_memory_algorithms.
3424         * include/bits/stl_tree.h: Switch to bits/version.h for
3425         __cpp_lib_generic_associative_lookup.
3426         * include/bits/stl_stack.h: Switch to bits/version.h for
3427         __cpp_lib_adaptor_iterator_pair_constructor.
3428         (stack): Guard iterator-pair constructor behind
3429         __cpp_lib_adaptor_iterator_pair_constructor.
3430         * include/bits/stl_queue.h: Switch to bits/version.h for
3431         __cpp_lib_adaptor_iterator_pair_constructor.
3432         (queue): Guard iterator-pair constructor behind
3433         __cpp_lib_adaptor_iterator_pair_constructor.
3434         * include/bits/stl_pair.h: Switch to bits/version.h for
3435         __cpp_lib_{concepts,tuples_by_type}.
3436         (get): Guard type-getting overloads behind
3437         __cpp_lib_tuples_by_type.
3438         * include/bits/stl_map.h: Switch to bits/version.h for
3439         __cpp_lib_map_try_emplace.
3440         (map<>::try_emplace): Guard behind __cpp_lib_map_try_emplace.
3441         * include/bits/stl_list.h: Switch to bits/version.h for
3442         __cpp_lib_list_remove_return_type.
3443         (__remove_return_type, _GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG)
3444         [C++20]: guard behind __cpp_lib_list_remove_return_type instead.
3445         * include/bits/stl_iterator.h: Switch to bits/version.h for
3446         __cpp_lib_{constexpr_iterator,array_constexpr} and
3447         __cpp_lib_{make_reverse_iterator,move_iterator_concept}.
3448         (make_reverse_iterator): Guard behind
3449         __cpp_lib_make_reverse_iterator.
3450         (iterator_concept et al): Guard __cpp_lib_move_iterator_concept
3451         changes behind that FTM.
3452         * include/bits/stl_function.h: Switch to bits/version.h for
3453         __cpp_lib_transparent_operators.
3454         (equal_to, not_equal_to, greater, less, greater_equal)
3455         (less_equal, bit_and, bit_or, bit_xor, bit_not, logical_and)
3456         (logical_or, logical_not, plus, minus, multiplies, divides)
3457         (modulus, negate): Guard '= void' fwdecls behind
3458         __cpp_lib_transparent_operators.
3459         (plus<void>, minus<void>, multiplies<void>, divides<void>)
3460         (modulus<void>, negate<void>, logical_and<void>, logical_or<void>)
3461         (logical_not<void>, bit_and<void>, bit_or<void>, bit_xor<void>)
3462         (equal_to<void>, not_equal_to<void>, greater<void>, less<void>)
3463         (greater_equal<void>, less_equal<void>, bit_not<void>)
3464         (__has_is_transparent): Guard behind
3465         __cpp_lib_transparent_operators.
3466         * include/bits/stl_algobase.h: Switch to bits/version.h for
3467         __cpp_lib_robust_nonmodifying_seq_ops.
3468         (robust equal, mismatch): Guard behind
3469         __cpp_lib_nonmember_container_access.
3470         * include/bits/stl_algo.h: Swtich to bits/version.h for
3471         __cpp_lib_{clamp,sample}.
3472         (clamp): Guard behind __cpp_lib_clamp.
3473         (sample): Guard behind __cpp_lib_sample.
3474         * include/bits/specfun.h: Switch to bits/version.h for
3475         __cpp_lib_math_special_functions and __STDCPP_MATH_SPEC_FUNCS__.
3476         * include/bits/shared_ptr_base.h: Switch to bits/version.h for
3477         __cpp_lib_{smart_ptr_for_overwrite,shared_ptr_arrays}.
3478         (_Sp_overwrite_tag): Guard behind
3479         __cpp_lib_smart_ptr_for_overwrite.
3480         * include/bits/shared_ptr_atomic.h: Switch to bits/version.h for
3481         __cpp_lib_atomic_shared_ptr.
3482         * include/bits/shared_ptr.h: Switch to bits/version.h for
3483         __cpp_lib_{enable_shared_from_this,shared_ptr_weak_type}.
3484         (shared_ptr<T>::weak_type): Guard behind
3485         __cpp_lib_shared_ptr_weak_type.
3486         (enable_shared_from_this<T>::weak_from_this): Guard behind
3487         __cpp_lib_enable_shared_from_this.
3488         * include/bits/ranges_cmp.h: Switch to bits/version.h for
3489         __cpp_lib_ranges.
3490         * include/bits/ranges_algo.h: Switch to bits/version.h for
3491         __cpp_lib_{shift,ranges_{contains,find_last,fold,iota}}.
3492         * include/bits/range_access.h: Switch to bits/version.h for
3493         __cpp_lib_nonmember_container_access
3494         (size, empty, data): Guard behind
3495         __cpp_lib_nonmember_container_access.
3496         (ssize): Guard behind __cpp_lib_ssize.
3497         * include/bits/ptr_traits.h: Switch to bits/version.h. for
3498         __cpp_lib_{constexpr_memory,to_address}.
3499         (to_address): Guard behind __cpp_lib_to_address.
3500         * include/bits/node_handle.h: Switch to bits/version.h for
3501         __cpp_lib_node_extract.  Guard header behind that FTM.
3502         * include/bits/move_only_function.h: Switch to bits/version.h for
3503         __cpp_lib_move_only_function.  Guard header behind that FTM.
3504         * include/bits/move.h: Switch to bits/version.h for
3505         __cpp_lib_addressof_constexpr.
3506         * include/bits/ios_base.h: Switch to bits/version.h for
3507         __cpp_lib_ios_noreplace.
3508         (noreplace): Guard with __cpp_lib_ios_noreplace.
3509         * include/bits/hashtable.h: Switch to bits/version.h for
3510         __cpp_lib_generic_unordered_lookup.
3511         (_M_equal_range_tr, _M_count_tr, _M_find_tr): Guard behind
3512         __cpp_lib_generic_unordered_lookup.
3513         * include/bits/forward_list.h: Switch to bits/version.h for
3514         __cpp_lib_list_remove_return_type.
3515         (__remove_return_type): Guard behind
3516         __cpp_lib_list_remove_return_type.
3517         * include/bits/erase_if.h: Switch to bits/version.h for
3518         __cpp_lib_erase_if.
3519         * include/bits/cow_string.h: Switch to bits/version.h for
3520         __cpp_lib_constexpr_string.
3521         * include/bits/chrono.h: Swtich to bits/version.h for
3522         __cpp_lib_chrono{,_udls}.
3523         (ceil): Guard behind __cpp_lib_chrono.
3524         (operator""ns et al): Guard behind __cpp_lib_chrono_udls.
3525         * include/bits/char_traits.h: Switch to bits/version.h for
3526         __cpp_lib_constexpr_char_traits.
3527         * include/bits/basic_string.h: Switch to bits/version.h for
3528         __cpp_lib_{constexpr_string,string_{resize_and_overwrite,udls}}.
3529         (resize_and_overwrite): Guard behind
3530         __cpp_lib_string_resize_and_overwrite.
3531         (operator""s): Guard behind __cpp_lib_string_udls.
3532         * include/bits/atomic_wait.h: Switch to bits/version.h for
3533         __cpp_lib_atomic_wait.  Guard header behind that FTM.
3534         * include/bits/atomic_base.h: Switch to bits/version.h for
3535         __cpp_lib_atomic_value_initialization and
3536         __cpp_lib_atomic_flag_test.
3537         (atomic_flag::test): Guard behind __cpp_lib_atomic_flag_test,
3538         rather than C++20.
3539         * include/bits/allocator.h: Switch to bits/version.h for
3540         __cpp_lib_incomplete_container_elements.
3541         * include/bits/alloc_traits.h: Switch to using bits/version.h for
3542         __cpp_lib_constexpr_dynamic_alloc and
3543         __cpp_lib_allocator_traits_is_always_equal.
3544         * include/bits/align.h: Switch to bits/version.h for defining
3545         __cpp_lib_assume_aligned.
3546         (assume_aligned): Guard with __cpp_lib_assume_aligned.
3547         * include/bits/algorithmfwd.h: Switch to bits/version.h for
3548         defining __cpp_lib_constexpr_algorithms.
3549         * include/std/stacktrace: Switch to bits/version.h for
3550         __cpp_lib_stacktrace.  Guard header behind that FTM.
3551         * testsuite/23_containers/array/tuple_interface/get_neg.cc:
3552         Update line numbers.
3553
3554 2023-08-16  Arsen Arsenović  <arsen@aarsen.me>
3555
3556         * include/Makefile.am (bits_freestanding): Add version.h.
3557         (allcreated): Add version.h.
3558         (${bits_srcdir}/version.h): New rule.  Regenerates
3559         version.h out of version.{def,tpl}.
3560         * include/Makefile.in: Regenerate.
3561         * include/bits/version.def: New file.  Declares a list of
3562         all feature test macros, their values and their preconditions.
3563         * include/bits/version.tpl: New file.  Turns version.def
3564         into a sequence of #if blocks.
3565         * include/bits/version.h: New file.  Generated from
3566         version.def.
3567         * include/std/version: Replace with a __glibcxx_want_all define
3568         and bits/version.h include.
3569
3570 2023-08-14  Paul Dreik  <gccpatches@pauldreik.se>
3571
3572         PR libstdc++/110860
3573         * include/std/format (__formatter_fp::format): Use frexp instead
3574         of log10.
3575
3576 2023-08-12  Ken Matsui  <kmatsui@gcc.gnu.org>
3577
3578         * include/std/type_traits (true_type): Use __bool_constant
3579         instead.
3580         (false_type): Likewise.
3581         (bool_constant): Likewise.
3582
3583 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3584
3585         PR libstdc++/110990
3586         * include/std/format (_Seq_sink::get): Only call _M_overflow if
3587         its precondition is met.
3588         (_Iter_sink::_M_finish): Likewise.
3589         (_Iter_sink<C, ContigIter>::_M_overflow): Only switch to the
3590         internal buffer after running out of space.
3591         (_Iter_sink<C, ContigIter>::_M_finish): Do not use _M_overflow.
3592         (_Counting_sink::count): Likewise.
3593         * testsuite/std/format/functions/format_to_n.cc: Check cases
3594         where the output fits into the buffer.
3595
3596 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3597
3598         PR libstdc++/104167
3599         * include/bits/chrono_io.h (operator|=, operator|): Add noexcept
3600         to _ChronoParts operators.
3601         (from_stream, parse): Define new functions.
3602         (__detail::_Parse, __detail::_Parser): New class templates.
3603         * include/std/chrono (__cpp_lib_chrono): Define to 201907L for
3604         C++20.
3605         * include/std/version (__cpp_lib_chrono): Likewise.
3606         * testsuite/20_util/duration/arithmetic/constexpr_c++17.cc:
3607         Adjust expected value of feature test macro.
3608         * testsuite/20_util/duration/io.cc: Test parsing.
3609         * testsuite/std/time/clock/file/io.cc: Likewise.
3610         * testsuite/std/time/clock/gps/io.cc: Likewise.
3611         * testsuite/std/time/clock/system/io.cc: Likewise.
3612         * testsuite/std/time/clock/tai/io.cc: Likewise.
3613         * testsuite/std/time/clock/utc/io.cc: Likewise.
3614         * testsuite/std/time/day/io.cc: Likewise.
3615         * testsuite/std/time/month/io.cc: Likewise.
3616         * testsuite/std/time/month_day/io.cc: Likewise.
3617         * testsuite/std/time/weekday/io.cc: Likewise.
3618         * testsuite/std/time/year/io.cc: Likewise.
3619         * testsuite/std/time/year_month/io.cc: Likewise.
3620         * testsuite/std/time/year_month_day/io.cc: Likewise.
3621         * testsuite/std/time/syn_c++20.cc: Check value of macro and for
3622         the existence of parse and from_stream in namespace chrono.
3623         * testsuite/std/time/clock/local/io.cc: New test.
3624         * testsuite/std/time/parse.cc: New test.
3625
3626 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3627
3628         PR libstdc++/110860
3629         * include/std/format (__formatter_fp::format): Do not call log10
3630         with zero values.
3631
3632 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3633
3634         * python/libstdcxx/v6/printers.py (StdChronoCalendarPrinter):
3635         Check for out-of-range month an weekday indices.
3636         * testsuite/libstdc++-prettyprinters/chrono.cc: Check invalid
3637         month and weekday values.
3638
3639 2023-08-11  Jonathan Wakely  <jwakely@redhat.com>
3640
3641         * include/bits/stl_iterator.h (__clamped_iter_cat_t): Remove.
3642
3643 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
3644
3645         PR libstdc++/110974
3646         * include/std/format (_Spec::_S_parse_width_or_precision): Check
3647         for empty range before dereferencing iterator.
3648         * testsuite/std/format/string.cc: Check for expected exception.
3649         Fix expected exception message in test_pr110862() and actually
3650         call it.
3651
3652 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
3653
3654         PR libstdc++/110968
3655         * include/std/format (__formatter_fp::format): Check return
3656         value of _M_localize.
3657         * testsuite/std/format/functions/format.cc: Check classic
3658         locale.
3659
3660 2023-08-10  Jonathan Wakely  <jwakely@redhat.com>
3661
3662         PR libstdc++/110970
3663         * include/bits/stl_iterator.h (__detail::__move_iter_cat): Use
3664         __iter_category_t.
3665         (iterator_traits<common_iterator<I, S>>::_S_iter_cat): Likewise.
3666         (__detail::__basic_const_iterator_iter_cat): Likewise.
3667         * include/bits/stl_iterator_base_types.h (__iterator_category_t):
3668         Rename to __iter_category_t.
3669
3670 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3671
3672         * include/bits/chrono.h (duration_cast): Do not use braces
3673         around statements for C++11 constexpr rules.
3674         * include/bits/stl_algobase.h (__lg): Rewrite as a single
3675         statement for C++11 constexpr rules.
3676         * include/experimental/bits/fs_path.h (path::string): Use
3677         _GLIBCXX17_CONSTEXPR not _GLIBCXX_CONSTEXPR for 'if constexpr'.
3678         * include/std/charconv (__to_chars_8): Initialize variable for
3679         C++17 constexpr rules.
3680
3681 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3682
3683         * include/bits/list.tcc (list::sort(Cmp)): Fix -Wsign-compare
3684         warning for loop condition.
3685
3686 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3687
3688         * include/std/complex: Add diagnostic pragma for clang.
3689
3690 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3691
3692         * include/bits/shared_ptr_atomic.h (atomic): Change class-head
3693         to struct.
3694         * include/bits/stl_tree.h (_Rb_tree_merge_helper): Change
3695         class-head to struct in friend declaration.
3696         * include/std/chrono (tzdb_list::_Node): Likewise.
3697         * include/std/future (_Task_state_base, _Task_state): Likewise.
3698         * include/std/scoped_allocator (__inner_type_impl): Likewise.
3699         * include/std/valarray (_BinClos, _SClos, _GClos, _IClos)
3700         (_ValFunClos, _RefFunClos): Change class-head to struct.
3701
3702 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3703
3704         * include/bits/alloc_traits.h (allocate): Add [[maybe_unused]]
3705         attribute.
3706         * include/bits/regex_executor.tcc: Remove name of unused
3707         parameter.
3708         * include/bits/shared_ptr_atomic.h (atomic_is_lock_free):
3709         Likewise.
3710         * include/bits/stl_uninitialized.h: Likewise.
3711         * include/bits/streambuf_iterator.h (operator==): Likewise.
3712         * include/bits/uses_allocator.h: Likewise.
3713         * include/c_global/cmath (isfinite, isinf, isnan): Likewise.
3714         * include/std/chrono (zoned_time): Likewise.
3715         * include/std/future (__future_base::_S_allocate_result):
3716         Likewise.
3717         (packaged_task): Likewise.
3718         * include/std/optional (_Optional_payload_base): Likewise.
3719         * include/std/scoped_allocator (__inner_type_impl): Likewise.
3720         * include/std/tuple (_Tuple_impl): Likewise.
3721
3722 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3723
3724         * include/bits/new_allocator.h (__new_allocator): Define copy
3725         assignment operator as defaulted.
3726         * include/std/complex (complex<float>, complex<double>)
3727         (complex<long double>): Define copy constructor as defaulted.
3728
3729 2023-08-09  Jonathan Wakely  <jwakely@redhat.com>
3730
3731         * include/std/format: Fix some warnings.
3732         (__format::__write(Ctx&, basic_string_view<CharT>)): Remove
3733         unused function template.
3734
3735 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
3736
3737         PR libstdc++/110860
3738         * include/std/format (__formatter_fp::format): Do not use
3739         __builtin_abs and __builtin_log10 with arbitrary floating-point
3740         types.
3741
3742 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
3743
3744         PR libstdc++/110917
3745         * include/std/format (__format::_Iter_sink<CharT, OutIter>):
3746         Constrain partial specialization for contiguous iterators to
3747         require the value type to be CharT.
3748         * testsuite/std/format/functions/format_to.cc: New test.
3749
3750 2023-08-07  Jonathan Wakely  <jwakely@redhat.com>
3751
3752         PR libstdc++/110862
3753         * include/std/format (_Scanner::_M_on_replacement_field):
3754         Check for expected '}' before incrementing iterator.
3755         * testsuite/std/format/string.cc: Check "{0:{0}" format string.
3756
3757 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
3758
3759         * configure: Regenerate.
3760
3761 2023-08-07  Alan Modra  <amodra@gmail.com>
3762
3763         * configure: Regenerate.
3764
3765 2023-08-07  Alexander von Gluck IV  <kallisti5@unixzen.com>
3766
3767         * configure: Regenerate.
3768
3769 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
3770
3771         * configure: Regenerate.
3772
3773 2023-08-07  Nick Alcock  <nick.alcock@oracle.com>
3774
3775         * configure: Regenerate.
3776
3777 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
3778
3779         * configure: Regenerate.
3780
3781 2023-08-07  H.J. Lu  <hjl.tools@gmail.com>
3782
3783         * configure: Regenerate.
3784
3785 2023-08-06  François Dumont  <fdumont@gcc.gnu.org>
3786
3787         * config/abi/pre/gnu-versioned-namespace.ver: Add __cxa_call_terminate
3788         symbol export.
3789
3790 2023-07-30  François Dumont  <fdumont@gcc.gnu.org>
3791
3792         * src/c++11/compatibility-ldbl-facets-aliases.h: Replace #define with
3793         proper #error.
3794         * src/c++11/locale-inst-monetary.h: Likewise.
3795         * src/c++11/locale-inst-numeric.h: Likewise.
3796
3797 2023-07-27  Jonathan Wakely  <jwakely@redhat.com>
3798
3799         PR libstdc++/108046
3800         * include/std/format (__formatter_fp::format): Ensure __expc is
3801         always set for all presentation types. Set __z correctly for
3802         zero precision.
3803         * testsuite/std/format/functions/format.cc: Check problem cases.
3804
3805 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
3806
3807         PR libstdc++/110807
3808         * testsuite/23_containers/vector/bool/110807.cc: Require c++11.
3809
3810 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
3811
3812         PR libstdc++/110807
3813         * include/bits/stl_bvector.h (vector(const vector&)): Access
3814         iterators before allocating.
3815         * include/bits/vector.tcc (vector<bool>::_M_insert_range):
3816         Likewise.
3817         * testsuite/23_containers/vector/bool/110807.cc: New test.
3818
3819 2023-07-26  Jonathan Wakely  <jwakely@redhat.com>
3820
3821         * include/bits/algorithmfwd.h (random_shuffle): Add deprecated
3822         attribute.
3823         * include/bits/stl_algo.h (random_shuffle): Correct comments.
3824         * testsuite/25_algorithms/random_shuffle/1.cc: Disable
3825         deprecated warnings.
3826         * testsuite/25_algorithms/random_shuffle/59603.cc: Likewise.
3827         * testsuite/25_algorithms/random_shuffle/moveable.cc: Likewise.
3828         * testsuite/25_algorithms/random_shuffle/deprecated.cc: New
3829         test.
3830
3831 2023-07-26  Nathaniel Shead  <nathanieloshead@gmail.com>
3832
3833         * testsuite/25_algorithms/equal/constexpr_neg.cc: Update diagnostic
3834         locations.
3835         * testsuite/26_numerics/gcd/105844.cc: Likewise.
3836         * testsuite/26_numerics/lcm/105844.cc: Likewise.
3837
3838 2023-07-24  Deev Patel  <pateldeev@nevada.unr.edu>
3839
3840         * include/std/format (_Formatting_scanner::_M_on_chars): Add
3841         missing constexpr specifier.
3842         (_Formatting_scanner::_M_format_arg): Likewise.
3843
3844 2023-07-24  Jonathan Wakely  <jwakely@redhat.com>
3845
3846         PR libstdc++/110653
3847         * include/bits/basic_string.h [!HAVE_STOF] (stof): Do not
3848         throw an exception for zero result.
3849         [HAVE_BROKEN_STRTOLD] (stold): Do not use strtold.
3850
3851 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3852
3853         PR libstdc++/110077
3854         * src/c++17/floating_from_chars.cc (from_chars): Only define
3855         _Float128 overload when using __strfromf128.
3856
3857 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3858
3859         PR libstdc++/110593
3860         * include/bits/chrono.h (duration): Improve static assert
3861         messages.
3862         (__is_ratio): Move to ...
3863         * include/std/ratio (__is_ratio): ... here.
3864         (__is_ratio_v): New variable template and partial
3865         specialization.
3866         (__are_both_ratios): New function template.
3867         (__ratio_multiply, ratio_equal, ratio_less, __ratio_add):
3868         Add static assertion.
3869         * testsuite/20_util/ratio/requirements/type_constraints.cc:
3870         New test.
3871         * testsuite/20_util/duration/requirements/typedefs_neg1.cc:
3872         Adjust expected error.
3873         * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
3874         Likewise.
3875
3876 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3877
3878         * include/bits/chrono_io.h (__formatter_chrono::_M_format):
3879         Do not set __is_neg for hh_mm_ss before calling
3880         _M_format_to_ostream. Change __print_sign lambda to only check
3881         __is_neg for durations and hh_mm_ss types.
3882         (__formatter_chrono::_M_format_to_ostream): Only check __is_neg
3883         for duration types.
3884         * testsuite/std/time/hh_mm_ss/io.cc: Check negative values.
3885
3886 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3887
3888         PR libstdc++/110719
3889         * include/bits/chrono_io.h (__formatter_chrono::_S_floor_seconds):
3890         Handle duration and hh_mm_ss.
3891         * testsuite/20_util/duration/io.cc: Check locale-specific
3892         formats.
3893         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
3894
3895 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3896
3897         * include/std/format (__write_padded): Initialize first element
3898         of array to avoid a -Wmaybe-uninitialized warning.
3899
3900 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3901
3902         PR libstdc++/110719
3903         * include/bits/chrono_io.h (__formatter_chrono::_M_parse): Fix
3904         allowed modifiers for %z and %Z. Fix -Wparentheses and
3905         -Wnarrowing warnings.
3906         (__formatter_chrono::_M_format): Call new functions for %d, %e,
3907         %H, %I, %m and %M.
3908         (__formatter_chrono::_M_c): Use _S_floor_seconds to remove
3909         subsecond precision.
3910         (__formatter_chrono::_M_C_y_Y): Use _M_locale_fmt to handle
3911         modifiers.
3912         (__formatter_chrono::_M_e): Replace with _M_d_e and use
3913         _M_locale_fmt.
3914         (__formatter_chrono::_M_I): Replace with _M_H_I and use
3915         _M_locale_fmt.
3916         (__formatter_chrono::_M_m): New function.
3917         (__formatter_chrono::_M_M): New function.
3918         (__formatter_chrono::_M_r): Use _M_locale_fmt.
3919         (__formatter_chrono::_M_S): Likewise.
3920         (__formatter_chrono::_M_u_w): Likewise.
3921         (__formatter_chrono::_M_U_V_W): Likewise.
3922         (__formatter_chrono::_M_X): Use _S_floor_seconds.
3923         (__formatter_chrono::_M_Z): Fix untested branch for wchar_t.
3924         (__formatter_chrono::_S_altnum): Remove function.
3925         (__formatter_chrono::_S_dd_zero_fill): Remove function.
3926         (__formatter_chrono::_S_floor_seconds): New function.
3927         (__formatter_chrono::_M_locale_fmt): New function.
3928         * testsuite/std/time/clock/system/io.cc: Adjust expected output
3929         for locale-specific formats and check modified formats.
3930         * testsuite/std/time/clock/utc/io.cc: Likewise.
3931         * testsuite/std/time/zoned_time/io.cc: New test.
3932
3933 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3934
3935         PR libstdc++/110708
3936         * include/bits/chrono_io.h (__formatter_chrono::_M_parse): Only
3937         allow a single modifier.
3938         * testsuite/std/time/format.cc: Check multiple modifiers.
3939
3940 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3941
3942         PR libstdc++/110653
3943         * testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc:
3944         Remove dg-require-string-conversions.
3945         * testsuite/21_strings/basic_string/numeric_conversions/char/stof.cc:
3946         Likewise.
3947         * testsuite/21_strings/basic_string/numeric_conversions/char/stoi.cc:
3948         Likewise.
3949         * testsuite/21_strings/basic_string/numeric_conversions/char/stol.cc:
3950         Likewise.
3951         * testsuite/21_strings/basic_string/numeric_conversions/char/stoul.cc:
3952         Likewise.
3953
3954 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3955
3956         PR libstdc++/110653
3957         * include/bits/basic_string.h [!_GLIBCXX_HAVE_STRTOF] (stof):
3958         Define in terms of std::stod.
3959
3960 2023-07-19  Jonathan Wakely  <jwakely@redhat.com>
3961
3962         PR libstdc++/110653
3963         * include/bits/basic_string.h [_GLIBCXX_HAVE_STRTOF] (stof):
3964         Define.
3965         [_GLIBCXX_HAVE_STRTOLD] (stold): Define.
3966         * include/c_global/cstdlib [_GLIBCXX_HAVE_STRTOF] (strtof):
3967         Declare in namespace std.
3968         [_GLIBCXX_HAVE_STRTOLD] (strtold): Likewise.
3969
3970 2023-07-13  Jonathan Wakely  <jwakely@redhat.com>
3971
3972         PR libstdc++/110653
3973         * include/bits/basic_string.h (stoi, stol, stoul, stod): Do not
3974         depend on _GLIBCXX_USE_C99_STDLIB.
3975         [__LONG_WIDTH__ == __LONG_LONG_WIDTH__] (stoll, stoull): Define
3976         in terms of stol and stoul respectively.
3977         [__DBL_MANT_DIG__ == __LDBL_MANT_DIG__] (stold): Define in terms
3978         of stod.
3979
3980 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
3981
3982         PR libstdc++/95048
3983         * testsuite/27_io/filesystem/path/construct/95048.cc: Check
3984         conversions to wide strings.
3985         * testsuite/experimental/filesystem/path/construct/95048.cc:
3986         Likewise.
3987
3988 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
3989
3990         * config/io/basic_file_stdio.cc: Define LFS macros.
3991         (__basic_file<char>::open): Use fopen unconditionally.
3992         (get_file_offset): Use lseek unconditionally.
3993         (__basic_file<char>::seekoff): Likewise.
3994         (__basic_file<char>::showmanyc): Use fstat unconditionally.
3995
3996 2023-07-12  Jonathan Wakely  <jwakely@redhat.com>
3997
3998         PR libstdc++/110574
3999         * acinclude.m4 (GLIBCXX_CHECK_LFS): Check for fseeko and ftello
4000         and define _GLIBCXX_USE_FSEEKO_FTELLO.
4001         * config.h.in: Regenerate.
4002         * configure: Regenerate.
4003         * config/io/basic_file_stdio.cc (xwrite) [_GLIBCXX_USE_STDIO_PURE]:
4004         Check for fwrite error correctly.
4005         (__basic_file<char>::xsgetn) [_GLIBCXX_USE_STDIO_PURE]: Check for
4006         fread error correctly.
4007         (get_file_offset): New function.
4008         (__basic_file<char>::seekoff) [_GLIBCXX_USE_STDIO_PURE]: Use
4009         fseeko if available. Use get_file_offset instead of return value
4010         of fseek.
4011         (__basic_file<char>::showmanyc): Use get_file_offset.
4012
4013 2023-07-12  Ken Matsui  <kmatsui@gcc.gnu.org>
4014
4015         * include/std/type_traits (__make_unsigned_selector): Use
4016         __is_enum built-in trait.
4017         (__make_signed_selector): Likewise.
4018         (__underlying_type_impl): Likewise.
4019
4020 2023-07-06  Tianqiang Shuai  <1101282468@qq.com>
4021
4022         * config/io/basic_file_stdio.cc (xwrite) [USE_STDIO_PURE]: Fix
4023         first argument.
4024
4025 2023-07-06  Jonathan Wakely  <jwakely@redhat.com>
4026
4027         PR libstdc++/110574
4028         * doc/xml/manual/configure.xml: Describe stdio_pure argument to
4029         --enable-cstdio.
4030         * doc/html/manual/configure.html: Regenerate.
4031
4032 2023-07-05  Thomas Rodgers  <trodgers@redhat.com>
4033
4034         * testsuite/25_algorithms/pstl/alg_sorting/set.cc: Delete
4035         file.
4036         * testsuite/25_algorithms/pstl/alg_sorting/set_difference.cc:
4037         New file.
4038         * testsuite/25_algorithms/pstl/alg_sorting/set_intersection.cc:
4039         Likewise.
4040         * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc:
4041         Likewise.
4042         * testsuite/25_algorithms/pstl/alg_sorting/set_union.cc:
4043         Likewise.
4044         * testsuite/25_algorithms/pstl/alg_sorting/set_util.h:
4045         Likewise.
4046
4047 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4048
4049         * testsuite/23_containers/forward_list/debug/iterator1_neg.cc:
4050         Skip as UNSUPPORTED for C++98 mode.
4051         * testsuite/23_containers/forward_list/debug/iterator3_neg.cc:
4052         Likewise.
4053
4054 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4055
4056         PR libstdc++/110542
4057         * include/bits/stl_uninitialized.h (__uninitialized_default_n):
4058         Do not use std::fill_n during constant evaluation.
4059
4060 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4061
4062         * include/bits/vector.tcc (_M_default_append): Replace try-block
4063         with RAII types.
4064
4065 2023-07-05  Jonathan Wakely  <jwakely@redhat.com>
4066
4067         * include/bits/iterator_concepts.h (projected): Add typename.
4068
4069 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
4070
4071         * testsuite/27_io/headers/iosfwd/synopsis.cc: Make wsyncbuf and
4072         wosyncstream depend on _GLIBCXX_USE_CXX11_ABI.
4073
4074 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
4075
4076         * include/pstl/pstl_config.h (_PSTL_PRAGMA_SIMD_SCAN,
4077         _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN, _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN):
4078         Define to OpenMP 5.0 pragmas even for GCC 10.0+.
4079         (_PSTL_UDS_PRESENT): Define to 1 for GCC 10.0+.
4080
4081 2023-07-03  Jonathan Wakely  <jwakely@redhat.com>
4082
4083         * include/bits/alloc_traits.h (_Destroy): Qualify call.
4084         * include/bits/stl_construct.h (_Destroy, _Destroy_n): Likewise.
4085         * testsuite/23_containers/vector/cons/destroy-adl.cc: New test.
4086
4087 2023-07-03  Iain Sandoe  <iain@sandoe.co.uk>
4088
4089         * testsuite/lib/libstdc++.exp: Remove additional flag handled
4090         by Darwin specs.
4091
4092 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
4093
4094         PR libstdc++/110432
4095         * acinclude.m4 (GLIBCXX_CHECK_INIT_PRIORITY): New.
4096         * config.h.in: Regenerate.
4097         * configure: Regenerate.
4098         * configure.ac: Use GLIBCXX_CHECK_INIT_PRIORITY.
4099         * include/std/iostream: Use new autoconf macro as well as
4100         __has_attribute.
4101         * src/c++98/ios_base_init.h: Use new autoconf macro instead of
4102         __has_attribute.
4103
4104 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
4105
4106         * src/c++11/random.cc (random_device::_M_init): Add maybe_unused
4107         attribute.
4108
4109 2023-06-30  Jonathan Wakely  <jwakely@redhat.com>
4110
4111         PR libstdc++/105081
4112         * src/c++11/random.cc (random_device::_M_init): Throw
4113         std::system_error when the requested device is a valid token but
4114         not available at runtime.
4115
4116 2023-06-30  Hans-Peter Nilsson  <hp@axis.com>
4117
4118         PR libstdc++/108672
4119         * include/pstl/unseq_backend_simd.h (__simd_or): Re-apply using
4120         __INT32_TYPE__ instead of int32_t.
4121
4122 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
4123
4124         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define consistently
4125         with USE_ATOMIC_LIST_HEAD.
4126         (list_mutex): Replace global object with function. Use local
4127         static object when std::mutex constructor isn't constexpr.
4128
4129 2023-06-29  Jonathan Wakely  <jwakely@redhat.com>
4130
4131         PR libstdc++/110462
4132         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check that
4133         copy_file_range can be called with loff_t* arguments.
4134         * configure: Regenerate.
4135         * src/filesystem/ops-common.h (copy_file_copy_file_range):
4136         Use loff_t for offsets.
4137
4138 2023-06-29  Tom Tromey  <tromey@adacore.com>
4139
4140         * testsuite/lib/gdb-test.exp (gdb-test): Relax type-printer
4141         regexp.
4142
4143 2023-06-28  Jan Hubicka  <jh@suse.cz>
4144
4145         PR middle-end/109849
4146         * include/bits/c++config (std::__terminate): Mark cold.
4147         * include/bits/functexcept.h: Mark everything as cold.
4148         * libsupc++/exception: Mark terminate and unexpected as cold.
4149
4150 2023-06-26  Thomas Rodgers  <trodgers@redhat.com>
4151
4152         * include/pstl/algorithm_fwd.h: Synchronize with upstream.
4153         * include/pstl/algorithm_impl.h: Likewise.
4154         * include/pstl/execution_defs.h: Likewise.
4155         * include/pstl/execution_impl.h: Likewise.
4156         * include/pstl/glue_algorithm_impl.h: Likewise.
4157         * include/pstl/glue_execution_defs.h: Likewise.
4158         * include/pstl/glue_memory_impl.h: Likewise.
4159         * include/pstl/glue_numeric_impl.h: Likewise.
4160         * include/pstl/memory_impl.h: Likewise.
4161         * include/pstl/numeric_fwd.h: Likewise.
4162         * include/pstl/numeric_impl.h: Likewise.
4163         * include/pstl/parallel_backend.h: Likewise.
4164         * include/pstl/parallel_backend_serial.h: Likewise.
4165         * include/pstl/parallel_backend_tbb.h: Likewise.
4166         * include/pstl/parallel_impl.h: Likewise.
4167         * include/pstl/pstl_config.h: Likewise.
4168         * include/pstl/unseq_backend_simd.h: Likewise.
4169         * include/pstl/utils.h: Likewise.
4170         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc:
4171         Likewise.
4172         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc:
4173         Likewise.
4174         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc:
4175         Likewise.
4176         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc:
4177         Likewise.
4178         * testsuite/25_algorithms/pstl/alg_merge/merge.cc: Likewise.
4179         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc:
4180         Likewise.
4181         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc:
4182         Likewise.
4183         * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc:
4184         Likewise.
4185         * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc:
4186         Likewise.
4187         * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc:
4188         Likewise.
4189         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc:
4190         Likewise.
4191         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc:
4192         Likewise.
4193         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc:
4194         Likewise.
4195         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc:
4196         Likewise.
4197         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc:
4198         Likewise.
4199         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc:
4200         Likewise.
4201         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc:
4202         Likewise.
4203         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc:
4204         Likewise.
4205         * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc:
4206         Likewise.
4207         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc:
4208         Likewise.
4209         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc:
4210         Likewise.
4211         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc:
4212         Likewise.
4213         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc:
4214         Likewise.
4215         * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc:
4216         Likewise.
4217         * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc:
4218         Likewise.
4219         * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc:
4220         Likewise.
4221         * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc:
4222         Likewise.
4223         * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc:
4224         Likewise.
4225         * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc:
4226         Likewise.
4227         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc:
4228         Likewise.
4229         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc:
4230         Likewise.
4231         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc:
4232         Likewise.
4233         * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc:
4234         Likewise.
4235         * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc:
4236         Likewise.
4237         * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc:
4238         Likewise.
4239         * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc:
4240         Likewise.
4241         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc:
4242         Likewise.
4243         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc:
4244         Likewise.
4245         * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc:
4246         Likewise.
4247         * testsuite/25_algorithms/pstl/alg_sorting/includes.cc:
4248         Likewise.
4249         * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc:
4250         Likewise.
4251         * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc:
4252         Likewise.
4253         * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc:
4254         Likewise.
4255         * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc:
4256         Likewise.
4257         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc:
4258         Likewise.
4259         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc:
4260         Likewise.
4261         * testsuite/25_algorithms/pstl/alg_sorting/set.cc:
4262         Likewise.
4263         * testsuite/25_algorithms/pstl/alg_sorting/sort.cc:
4264         Likewise.
4265         * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc:
4266         Likewise.
4267         * testsuite/26_numerics/pstl/numeric_ops/reduce.cc:
4268         Likewise.
4269         * testsuite/26_numerics/pstl/numeric_ops/scan.cc:
4270         Likewise.
4271         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
4272         Likewise.
4273         * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc:
4274         Likewise.
4275         * testsuite/util/pstl/test_utils.h:
4276         Likewise.
4277
4278 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4279
4280         PR libstdc++/110239
4281         * include/std/format (__format::__parse_integer): Fix buffer
4282         overflow for wide chars.
4283         (formatter<const void*, C>::format): Cast to uintptr_t instead
4284         of uint64_t.
4285         * testsuite/std/format/string.cc: Test too-large widths.
4286
4287 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4288
4289         * include/bits/iterator_concepts.h (projected): Replace class
4290         template with alias template denoting an ADL-proofed helper.
4291         (incremental_traits<projected<Iter, Proj>>): Remove.
4292         * testsuite/24_iterators/indirect_callable/projected-adl.cc:
4293         New test.
4294
4295 2023-06-26  Jonathan Wakely  <jwakely@redhat.com>
4296
4297         * include/debug/helper_functions.h (__get_distance)
4298         (__check_singular, __valid_range_aux, __valid_range): Qualify
4299         calls to disable ADL.
4300         (__check_singular_aux(const _Safe_iterator_base*)): Declare
4301         overload that was previously found via ADL.
4302
4303 2023-06-23  Jonathan Wakely  <jwakely@redhat.com>
4304
4305         * include/bits/vector.tcc (_M_realloc_insert): Replace try-block
4306         with RAII types.
4307
4308 2023-06-20  Jonathan Wakely  <jwakely@redhat.com>
4309
4310         * include/std/array (to_array(T(&)[N])): Remove redundant
4311         condition.
4312         (to_array(T(&&)[N])): Remove redundant std::move.
4313
4314 2023-06-16  Alexandre Oliva  <oliva@adacore.com>
4315
4316         * testsuite/20_util/from_chars/4.cc: Skip long double on
4317         aarch64-rtems.
4318
4319 2023-06-16  Joel Brobecker  <brobecker@adacore.com>
4320
4321         * configure.ac ["x${with_newlib}" = "xyes"]: Define
4322         HAVE_HYPOTF.  Add compile-checks for various long double
4323         math functions as well.
4324         * configure: Regenerate.
4325
4326 2023-06-14  Jonny Grant  <jg@jguk.org>
4327
4328         * doc/xml/manual/extensions.xml: Remove demangle exception
4329         description and include.
4330         * doc/html/manual/ext_demangling.html: Regenerate.
4331
4332 2023-06-10  Hans-Peter Nilsson  <hp@axis.com>
4333
4334         * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc (main)
4335         [! SIMULATOR_TEST]: Also exclude running test05.
4336         * testsuite/27_io/basic_istream/ignore/char/94749.cc: Ditto.
4337
4338 2023-06-09  Ken Matsui  <kmatsui@cs.washington.edu>
4339
4340         * include/std/type_traits: Use using instead of typedef
4341
4342 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4343
4344         PR libstdc++/110077
4345         * src/c++17/floating_from_chars.cc (from_chars) <_Float128>:
4346         Only define if _Float128 and long double have different
4347         representations.
4348
4349 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4350
4351         PR libstdc++/100285
4352         * include/experimental/internet [IPPROTO_TCP || IPPROTO_UDP]
4353         (basic_endpoint, basic_resolver_entry, resolver_base)
4354         (basic_resolver_results, basic_resolver): Only define if the tcp
4355         or udp protocols will be defined.
4356
4357 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4358
4359         * acinclude.m4 (libtool_VERSION): Update to 6.0.33.
4360         * configure: Regenerate.
4361         * doc/xml/manual/abi.xml: Add libstdc++.so.6.0.33.
4362         * doc/html/manual/abi.html: Regenerate.
4363
4364 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4365
4366         PR libstdc++/110149
4367         * include/std/format (formatter<const void*, charT>::parse):
4368         Only alow 0 and P for C++26 and non-strict modes.
4369         (formatter<const void*, charT>::format): Use toupper for P
4370         type, and insert zero-fill characters for 0 option.
4371         * testsuite/std/format/functions/format.cc: Check pointer
4372         formatting. Only check P2510R3 extensions conditionally.
4373         * testsuite/std/format/parse_ctx.cc: Only check P2510R3
4374         extensions conditionally.
4375
4376 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4377
4378         PR libstdc++/110167
4379         * include/std/array (to_array): Initialize arrays of trivial
4380         types using memcpy. For non-trivial types, use lambda
4381         expressions instead of a separate helper function.
4382         (__to_array): Remove.
4383         * testsuite/23_containers/array/creation/110167.cc: New test.
4384
4385 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
4386
4387         * testsuite/23_containers/deque/modifiers/emplace/52799.cc:
4388         Removed.
4389         * testsuite/23_containers/deque/modifiers/emplace/const_iterator.cc:
4390         Removed.
4391         * testsuite/23_containers/list/modifiers/emplace/52799.cc:
4392         Removed.
4393         * testsuite/23_containers/list/modifiers/emplace/const_iterator.cc:
4394         Removed.
4395         * testsuite/23_containers/vector/modifiers/emplace/52799.cc:
4396         Removed.
4397         * testsuite/23_containers/vector/modifiers/emplace/const_iterator.cc:
4398         Removed.
4399         * testsuite/23_containers/deque/modifiers/emplace/1.cc: New
4400         test.
4401         * testsuite/23_containers/list/modifiers/emplace/1.cc: New
4402         test.
4403         * testsuite/23_containers/vector/modifiers/emplace/1.cc: New
4404         test.
4405
4406 2023-06-07  Jakub Jelinek  <jakub@redhat.com>
4407
4408         PR libstdc++/110145
4409         * testsuite/20_util/to_chars/double.cc: Include <cfloat>.
4410         (double_to_chars_test_cases,
4411         double_scientific_precision_to_chars_test_cases_2,
4412         double_fixed_precision_to_chars_test_cases_2): #if out 1e126, 4.91e-6
4413         and 5.547e-6 tests if FLT_EVAL_METHOD is negative or larger than 1.
4414         Add unconditional tests with corresponding double constants
4415         0x1.7a2ecc414a03fp+418, 0x1.4981285e98e79p-18 and
4416         0x1.7440bbff418b9p-18.
4417
4418 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4419
4420         * testsuite/util/testsuite_abi.cc (check_version): Re-add
4421         CXXABI_1.3.14.
4422
4423 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4424
4425         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
4426         Require effective target exceptions_enabled instead of using
4427         dg-skip-if.
4428         * testsuite/23_containers/vector/capacity/constexpr.cc: Expect
4429         shrink_to_fit() to be a no-op without exceptions enabled.
4430         * testsuite/23_containers/vector/capacity/shrink_to_fit.cc:
4431         Likewise.
4432         * testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
4433         Require effective target exceptions_enabled.
4434         * testsuite/ext/malloc_allocator/check_allocate_max_size.cc:
4435         Likewise.
4436         * testsuite/ext/mt_allocator/check_allocate_max_size.cc:
4437         Likewise.
4438         * testsuite/ext/new_allocator/check_allocate_max_size.cc:
4439         Likewise.
4440         * testsuite/ext/pool_allocator/check_allocate_max_size.cc:
4441         Likewise.
4442         * testsuite/ext/throw_allocator/check_allocate_max_size.cc:
4443         Likewise.
4444
4445 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4446
4447         * testsuite/20_util/duration/cons/2.cc: Use values that aren't
4448         affected by rounding.
4449         * testsuite/20_util/from_chars/5.cc: Cast arithmetic result to
4450         double before comparing for equality.
4451         * testsuite/20_util/from_chars/6.cc: Likewise.
4452         * testsuite/20_util/variant/86874.cc: Use values that aren't
4453         affected by rounding.
4454         * testsuite/25_algorithms/lower_bound/partitioned.cc: Compare to
4455         original value instead of to floating-point-literal.
4456         * testsuite/26_numerics/random/discrete_distribution/cons/range.cc:
4457         Cast arithmetic result to double before comparing for equality.
4458         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/range.cc:
4459         Likewise.
4460         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/range.cc:
4461         Likewise.
4462         * testsuite/26_numerics/valarray/transcend.cc (eq): Check that
4463         the absolute difference is less than 0.01 instead of comparing
4464         to two decimal places.
4465         * testsuite/27_io/basic_istream/extractors_arithmetic/char/01.cc:
4466         Cast arithmetic result to double before comparing for equality.
4467         * testsuite/27_io/basic_istream/extractors_arithmetic/char/09.cc:
4468         Likewise.
4469         * testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc:
4470         Likewise.
4471         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc:
4472         Likewise.
4473         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc:
4474         Likewise.
4475         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/10.cc:
4476         Likewise.
4477         * testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
4478
4479 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
4480
4481         Revert:
4482         2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4483
4484         * configure.ac: Use AS_IF.
4485         * configure: Regenerate.
4486
4487 2023-06-07  Thomas Schwinge  <thomas@codesourcery.com>
4488
4489         * testsuite/lib/prune.exp (libstdc++-dg-prune): Support
4490         'UNSUPPORTED: [...]: exception handling disabled'.
4491
4492 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4493
4494         * testsuite/util/testsuite_abi.cc (check_version): Add
4495         CXXABI_1.3.15 symver and make it the latestp. Remove
4496         GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
4497
4498 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4499             Jakub Jelinek  <jakub@redhat.com>
4500
4501         PR libstdc++/104772
4502         * include/std/limits: (numeric_limits<__float128>): Define
4503         for __STRICT_ANSI__ as well.
4504         * testsuite/18_support/numeric_limits/128bit.cc: Remove
4505         check for __STRICT_ANSI__.
4506
4507 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4508
4509         * configure.ac: Use AS_IF.
4510         * configure: Regenerate.
4511
4512 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
4513
4514         PR libstdc++/109822
4515         * include/experimental/bits/simd_builtin.h (_S_store): Rewrite
4516         to avoid casts to other vector types. Implement store as
4517         succession of power-of-2 sized memcpy to avoid PR90424.
4518
4519 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
4520
4521         PR libstdc++/110054
4522         * include/experimental/bits/simd_builtin.h (_S_masked_store):
4523         Call into deduced ABI's SimdImpl after conversion.
4524         * include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
4525         Don't use _mm_maskmoveu_si128. Use the generic fall-back
4526         implementation. Also fix masked stores without SSE2, which
4527         were not doing anything before.
4528
4529 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
4530
4531         * include/experimental/bits/simd.h (__bit_cast): Use
4532         __gnu__::__vector_size__ instead of gnu::vector_size.
4533
4534 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4535
4536         PR libstdc++/110139
4537         * include/std/array (__array_traits<T, 0>::operator T*()): Make
4538         conversion operator explicit.
4539         (array::front): Use size_type as subscript operand.
4540         (array::data): Use static_cast to make conversion explicit.
4541         * testsuite/23_containers/array/element_access/110139.cc: New
4542         test.
4543
4544 2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
4545
4546         * include/bits/locale_classes.tcc: Remove check for
4547         codecvt<char8_t, char, mbstate_t> facet.
4548
4549 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4550
4551         * src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
4552         close-on-exec flag on file descriptors.
4553
4554 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
4555
4556         PR libstdc++/108178
4557         * src/filesystem/ops-common.h (do_copy_file): Check for empty
4558         files by trying to read a character.
4559         * testsuite/27_io/filesystem/operations/copy_file_108178.cc:
4560         New test.
4561
4562 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
4563
4564         * acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
4565         * config.h.in: Regenerate.
4566         * configure: Regenerate.
4567         * src/filesystem/ops-common.h (copy_file_copy_file_range):
4568         Define new function.
4569         (do_copy_file): Use it.
4570
4571 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
4572
4573         * acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
4574         * config.h.in: Regenerate.
4575         * configure: Regenerate.
4576         * src/filesystem/ops-common.h (copy_file_sendfile): Define new
4577         function for sendfile logic. Loop to support large files. Skip
4578         zero-length files.
4579         (do_copy_file): Use it.
4580
4581 2023-06-04  Jason Merrill  <jason@redhat.com>
4582
4583         PR c++/97720
4584         * libsupc++/eh_call.cc (__cxa_call_terminate): Take void*.
4585         * config/abi/pre/gnu.ver: Add it.
4586
4587 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
4588
4589         * include/parallel/algobase.h: Include <parallel/search.h>.
4590
4591 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4592
4593         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
4594         Add const to equality operator.
4595
4596 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4597
4598         * include/std/expected (expected::and_then, expected::or_else)
4599         (expected::transform_error): Use _M_val and _M_unex instead of
4600         calling value() and error(), as per LWG 3938.
4601         (expected::transform): Likewise. Remove incorrect std::move
4602         calls from lvalue overloads.
4603         (expected<void, E>::and_then, expected<void, E>::or_else)
4604         (expected<void, E>::transform): Use _M_unex instead of calling
4605         error().
4606         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
4607         and transform, and for std::expected<void, E>.
4608         * testsuite/20_util/expected/lwg3938.cc: New test.
4609
4610 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4611
4612         PR libstdc++/110060
4613         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
4614         Remove.
4615         (vector::size, vector::capacity): Remove calls to _M_invariant.
4616         * include/bits/vector.tcc (vector::_M_fill_assign): Add
4617         optimization hint to reallocating path.
4618         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
4619         Likewise.
4620         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
4621         to...
4622         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
4623         ...here. Check assign(FwdIter, FwdIter) too.
4624         * testsuite/23_containers/vector/types/1.cc: Revert addition
4625         of -Wno-stringop-overread option.
4626
4627 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
4628
4629         * doc/xml/manual/evolution.xml: Document removal of implicit
4630         allocator rebinding extensions in strict mode and for C++20.
4631         * doc/html/*: Regenerate.
4632
4633 2023-06-01  Jason Merrill  <jason@redhat.com>
4634
4635         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
4636         handlers in the cleanup phase.
4637
4638 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
4639
4640         PR libstdc++/110050
4641         * include/experimental/bits/simd.h (__vectorized_sizeof): With
4642         __have_neon_a32 only single-precision float works (in addition
4643         to integers).
4644
4645 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
4646
4647         * include/bits/stl_algo.h
4648         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
4649         * include/bits/stl_algobase.h: ...here.
4650         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
4651         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
4652         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
4653         Move...
4654         * include/parallel/algobase.h: ...here.
4655         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
4656         includes. Include <bits/stl_algobase.h>.
4657
4658 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4659
4660         PR libstdc++/109818
4661         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
4662         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
4663         * config.h.in: Regenerate.
4664         * configure: Regenerate.
4665         * include/c_global/cmath (float_t, double_t): Guard using new
4666         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
4667
4668 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4669
4670         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
4671         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
4672         for C99 rounding functions to here.
4673         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
4674         functions from here.
4675         * config.h.in: Regenerate.
4676         * configure: Regenerate.
4677         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
4678         of _GLIBCXX_USE_C99_MATH_TR1.
4679         * include/bits/random.tcc: Likewise.
4680         * include/c_compatibility/math.h: Likewise.
4681         * include/c_global/cmath: Likewise.
4682         * include/ext/random: Likewise.
4683         * include/ext/random.tcc: Likewise.
4684         * include/std/complex: Likewise.
4685         * testsuite/20_util/from_chars/4.cc: Likewise.
4686         * testsuite/20_util/from_chars/8.cc: Likewise.
4687         * testsuite/26_numerics/complex/proj.cc: Likewise.
4688         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
4689         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
4690         Likewise.
4691         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
4692         Likewise.
4693         * testsuite/util/testsuite_random.h: Likewise.
4694
4695 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4696
4697         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
4698         function.
4699         (vector::size(), vector::capacity()): Call _M_invariant().
4700         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
4701         * testsuite/23_containers/vector/types/1.cc: Add suppression for
4702         false positive warning (PR110060).
4703
4704 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4705
4706         PR libstdc++/109921
4707         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
4708         defined before trying to use _Float128.
4709
4710 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4711
4712         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
4713         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
4714         * configure: Regenerate.
4715
4716 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4717
4718         * include/bits/unique_lock.h: Include <bits/error_constants.h>
4719         here for std::errc constants.
4720         * include/std/mutex: Do not include <bits/error_constants.h> and
4721         <exception> here.
4722
4723 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4724
4725         * configure.ac: Replace use of -o operator for test.
4726         * configure: Regenerate.
4727
4728 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4729
4730         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
4731         noexcept to all constructors except the default constructor.
4732         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
4733         (scoped_allocator_adaptor::outer_allocator): Likewise.
4734         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
4735
4736 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4737
4738         PR libstdc++/104772
4739         * include/std/limits (numeric_limits<__float128>): Define.
4740         * testsuite/18_support/numeric_limits/128bit.cc: New test.
4741
4742 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4743
4744         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
4745         msp430 to all 16-bit targets.
4746         * configure: Regenerate.
4747
4748 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4749
4750         PR libstdc++/109921
4751         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
4752         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
4753         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
4754         binary64.
4755         (from_chars(const char*, const char*, double&, chars_format)):
4756         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
4757         (from_chars(const char*, const char*, _Float128&, chars_format))
4758         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
4759         defined, otherwise parse a long double and convert to _Float128.
4760
4761 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
4762
4763         PR libstdc++/109922
4764         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
4765         Add deprecated attribute to non-standard overload.
4766         * doc/xml/manual/evolution.xml: Document deprecation.
4767         * doc/html/*: Regenerate.
4768         * testsuite/27_io/manipulators/standard/char/1.cc: Add
4769         dg-warning for expected deprecated warning.
4770         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
4771         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
4772         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
4773
4774 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
4775
4776         * testsuite/20_util/from_chars/4.cc: Skip long double test06
4777         on x86_64-vxworks.
4778         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
4779         x86_64-vxworks.
4780
4781 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
4782
4783         PR libstdc++/109822
4784         * include/experimental/bits/simd.h (to_native): Use int NTTP
4785         as specified in PTS2.
4786         (to_compatible): Likewise. Add missing tag to call mask
4787         generator ctor.
4788         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
4789         test.
4790
4791 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
4792
4793         * testsuite/experimental/simd/tests/integer_operators.cc:
4794         Compute expected value differently to avoid getting turned into
4795         a vector shift.
4796
4797 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
4798
4799         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
4800         double <-> (u)long conversion tests conditional on sizeof(long
4801         double) and sizeof(long).
4802
4803 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
4804
4805         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
4806         Negative __y is UB, so prefer signed compare.
4807
4808 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
4809
4810         * testsuite/util/testsuite_allocator.h (PointerBase): Add
4811         relational operators.
4812
4813 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
4814
4815         * testsuite/20_util/to_chars/long_double.cc: Expect execution
4816         fail on x86-vxworks.
4817
4818 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
4819
4820         PR libstdc++/109949
4821         * include/experimental/bits/simd.h (__intrinsic_type): If
4822         __ALTIVEC__ is defined, map gnu::vector_size types to their
4823         corresponding __vector T types without losing unsignedness of
4824         integer types. Also prefer long long over long.
4825         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
4826         object to the expected unsigned vector type.
4827
4828 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
4829
4830         PR libstdc++/109261
4831         * include/experimental/bits/simd.h (__intrinsic_type):
4832         Specialize __intrinsic_type<double, 8> and
4833         __intrinsic_type<double, 16> in any case, but provide the member
4834         type only with __aarch64__.
4835
4836 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
4837
4838         PR libstdc++/109261
4839         * include/experimental/bits/simd_neon.h (_S_reduce): Add
4840         constexpr and make NEON implementation conditional on
4841         not __builtin_is_constant_evaluated.
4842
4843 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
4844
4845         PR libstdc++/109261
4846         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
4847         Avoid vector builtin subscripting in constant expressions.
4848         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
4849         (const_where_expression, where_expression, where)
4850         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
4851         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
4852         internal APIs).
4853         * include/experimental/bits/simd_builtin.h (__vector_permute)
4854         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
4855         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
4856         (_MaskImplBuiltin::_S_store): Add constexpr.
4857         (_CommonImplBuiltin::_S_store_bool_array)
4858         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
4859         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
4860         constant_evaluated case.
4861         * include/experimental/bits/simd_fixed_size.h
4862         (_S_masked_load): Reword comment.
4863         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
4864         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
4865         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
4866         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
4867         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
4868         constexpr.
4869         (_SimdTuple::operator[], _M_set): Add constexpr and add
4870         constant_evaluated case.
4871         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
4872         * include/experimental/bits/simd_scalar.h: Add constexpr.
4873         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
4874         constexpr and add constant_evaluated case.
4875         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
4876         (_S_less_equal): Value-initialize to satisfy constexpr
4877         evaluation.
4878         (_MaskImplX86::_S_load): Add constant_evaluated case.
4879         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
4880         case. Value-initialize local variables.
4881         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
4882         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
4883         case.
4884         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
4885         test.
4886
4887 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
4888
4889         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
4890         __infn into #ifdef'ed block.
4891         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
4892         constants only when used.
4893         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
4894         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
4895         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
4896         Likewise.
4897         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
4898         Move totest and expect1 into #ifdef'ed block.
4899
4900 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
4901
4902         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
4903         * doc/html/manual/strings.html: Regenerate.
4904
4905 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
4906
4907         PR libstdc++/109883
4908         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
4909
4910 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
4911
4912         PR libstdc++/109883
4913         * include/c_global/cmath (atan2, fmod, pow): Move
4914         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
4915         __gnu_cxx::__bfloat16_t overloads.
4916         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
4917         Likewise.
4918         (fma): Move __gnu_cxx::__promote_3 using template after
4919         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
4920
4921 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4922
4923         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
4924         checks for float_round_style and float_denorm_style.
4925
4926 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4927
4928         * include/bits/c++config: Add system_header pragma.
4929
4930 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4931
4932         * include/std/expected (expected::and_then, expected::or_else)
4933         (expected::transform, expected::transform_error): Fix exception
4934         specifications as per LWG 3877.
4935         (expected<void, E>::and_then, expected<void, E>::transform):
4936         Likewise.
4937         * testsuite/20_util/expected/lwg3877.cc: New test.
4938
4939 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
4940
4941         * include/std/type_traits: Use __bool_constant instead of
4942         integral_constant.
4943
4944 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
4945
4946         * configure: Regenerate.
4947
4948 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4949
4950         PR libstdc++/109741
4951         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
4952         * config.h.in: Regenerate.
4953         * configure: Regenerate.
4954         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
4955         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
4956         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
4957         instead of hardcoded 64.
4958
4959 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4960
4961         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
4962         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
4963         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
4964         * config.h.in: Regenerate.
4965         * configure: Regenerate.
4966         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
4967         instead of _GLIBCXX_USE_C99_FENV_TR1.
4968         * include/c_global/cfenv: Likewise.
4969         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
4970         of _GLIBCXX_USE_C99_CTYPE_TR1.
4971
4972 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
4973
4974         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
4975         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
4976         <inttypes.h> features in C++11 mode and define
4977         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
4978         * config.h.in: Regenerate.
4979         * configure: Regenerate.
4980         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
4981         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
4982         of _GLIBCXX_USE_C99_STDINT_TR1.
4983         * include/c_compatibility/inttypes.h: Check
4984         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
4985         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
4986         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
4987         * include/c_compatibility/stdatomic.h: Check
4988         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
4989         * include/c_compatibility/stdint.h: Likewise.
4990         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
4991         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
4992         _GLIBCXX_USE_C99_INTTYPES_TR1 and
4993         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
4994         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
4995         instead of _GLIBCXX_USE_C99_STDINT_TR1.
4996         * include/std/atomic: Likewise.
4997         * src/c++11/cow-stdexcept.cc: Likewise.
4998         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
4999         Likewise.
5000         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
5001         Likewise.
5002
5003 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5004
5005         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
5006         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
5007         * config.h.in: Regenerate.
5008         * configure: Regenerate.
5009         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
5010         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
5011         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
5012
5013 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5014
5015         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
5016         assertion to ensure expected exception is throw.
5017
5018 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5019
5020         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
5021         printer for chrono::zoned_time for cx11 ABI and tzdb effective
5022         target.
5023
5024 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
5025
5026         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
5027         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
5028         * configure: Regenerate.
5029
5030 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5031
5032         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
5033         to check for nan, nanf, and nanl.
5034         * configure: Regenerate.
5035
5036 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5037
5038         * include/bits/char_traits.h (char_traits<char16_t>): Do not
5039         depend on _GLIBCXX_USE_C99_STDINT_TR1.
5040         (char_traits<char32_t>): Likewise.
5041         * include/experimental/source_location: Likewise.
5042
5043 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5044
5045         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
5046         (atomic_int_least16_t, atomic_uint_least16_t)
5047         (atomic_int_least32_t, atomic_uint_least32_t)
5048         (atomic_int_least64_t, atomic_uint_least64_t)
5049         (atomic_int_fast16_t, atomic_uint_fast16_t)
5050         (atomic_int_fast32_t, atomic_uint_fast32_t)
5051         (atomic_int_fast64_t, atomic_uint_fast64_t)
5052         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
5053         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
5054
5055 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5056
5057         * include/bits/algorithmfwd.h (shuffle): Do not depend on
5058         _GLIBCXX_USE_C99_STDINT_TR1.
5059         * include/bits/ranges_algo.h (shuffle): Likewise.
5060         * include/bits/stl_algo.h (shuffle): Likewise.
5061         * include/ext/random: Likewise.
5062         * include/ext/throw_allocator.h (random_condition): Likewise.
5063         * include/std/random: Likewise.
5064         * src/c++11/cow-string-inst.cc: Likewise.
5065         * src/c++11/random.cc: Likewise.
5066
5067 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5068
5069         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
5070         _GLIBCXX_USE_C99_STDINT_TR1.
5071
5072 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5073
5074         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
5075         on _GLIBCXX_USE_C99_STDINT_TR1.
5076
5077 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
5078
5079         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
5080         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
5081         * testsuite/experimental/string_view/typedefs.cc: Likewise.
5082
5083 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5084
5085         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
5086         (auto_locale, auto_ferounding): New class types.
5087         (from_chars_impl): Use auto_locale and auto_ferounding.
5088
5089 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5090
5091         PR libstdc++/109772
5092         * include/std/chrono (hh_mm_ss::__fits): Remove variable
5093         template.
5094         (hh_mm_ss::__subseconds): Remove __fits from constraints.
5095         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
5096         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
5097         hh_mm_ss<duration<int, std::pico>>.
5098
5099 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5100
5101         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
5102         * include/bits/basic_ios.h: Add static assertion checking
5103         traits_type::value_type.
5104         * include/bits/basic_string.h: Likewise. Do not rebind
5105         allocator, and add static assertion checking its value_type.
5106         (basic_string::_Alloc_traits_impl): Remove class template.
5107         (basic_string::_S_allocate): New static member function.
5108         (basic_string::assign): Use _S_allocate.
5109         * include/bits/basic_string.tcc (basic_string::_M_create)
5110         (basic_string::reserve, basic_string::_M_replace): Likewise.
5111         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
5112         Disable for C++20 and later.
5113         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
5114         Likweise.
5115
5116 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
5117
5118         PR libstdc++/109758
5119         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
5120         and negative zero correctly.
5121         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
5122
5123 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
5124
5125         * include/bits/hashtable_policy.h
5126         (_NodeBuilder<>::_S_build): Use __node_ptr.
5127         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
5128         (_AllocNode<>): Likewise.
5129         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
5130         to call std::is_permutation in the non-unique key implementation.
5131         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
5132         _M_begin() once.
5133         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
5134         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
5135         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
5136         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
5137         const_iterator.
5138         (_Hashtable<>::find): Likewise.
5139         (_Hashtable<>::_M_emplace): Likewise.
5140         (_Hashtable<>::_M_insert_unique): Likewise.
5141
5142 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
5143
5144         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
5145         Print floating-point durations correctly.
5146         (StdChronoTimePointPrinter): Support printing only the value,
5147         not the type name. Uncomment handling for known clocks.
5148         (StdChronoZonedTimePrinter): Remove type names from output.
5149         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
5150         (StdChronoTimeZonePrinter): Add equals sign to output.
5151         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
5152
5153 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
5154
5155         * testsuite/20_util/from_chars/4.cc: Skip long double test06
5156         on aarch64-vxworks.
5157         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
5158         aarch64-vxworks.
5159
5160 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
5161
5162         * doc/xml/manual/abi.xml (abi.versioning.history): Document
5163         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
5164         * doc/html/manual/abi.html: Regenerate.
5165
5166 2023-05-04  Florian Weimer  <fweimer@redhat.com>
5167
5168         * doc/xml/manual/abi.xml (abi.versioning.history): Add
5169         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
5170         libgcc_s.
5171
5172 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
5173
5174         * src/c++17/floating_from_chars.cc
5175         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
5176         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
5177         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
5178         _ZSt8to_charsPcS_u9__ieee128.
5179         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
5180         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
5181         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
5182         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
5183         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
5184
5185 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
5186
5187         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
5188         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
5189         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
5190         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
5191         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
5192         versions.
5193         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
5194         file.
5195
5196 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
5197             Jonathan Wakely  <jwakely@redhat.com>
5198
5199         PR libstdc++/109703
5200         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
5201         Initialize _M_string_length.
5202
5203 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
5204
5205         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
5206         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
5207         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
5208         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
5209         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
5210         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
5211         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
5212         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
5213
5214 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
5215
5216         PR libstdc++/109694
5217         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
5218         -Wattribute-alias.
5219
5220 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5221
5222         * include/bits/random.h (gamma_distribution): Add to the right
5223         doxygen group.
5224         (discrete_distribution, piecewise_constant_distribution)
5225         (piecewise_linear_distribution): Create a new doxygen group and
5226         fix the incomplete doxygen comments.
5227         * include/bits/uniform_int_dist.h (uniform_int_distribution):
5228         Add to doxygen group.
5229
5230 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5231
5232         * include/bits/uses_allocator.h: Add missing @file comment.
5233         * include/bits/regex.tcc: Remove stray doxygen comments.
5234         * include/experimental/memory_resource: Likewise.
5235         * include/std/bit: Tweak doxygen @cond comments.
5236         * include/std/expected: Likewise.
5237         * include/std/numbers: Likewise.
5238
5239 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5240
5241         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
5242         from header paths.
5243
5244 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
5245
5246         * include/bits/move.h: Simplify opening/closing namespace std.
5247
5248 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
5249
5250         PR libstdc++/108969
5251         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
5252         _ZSt21ios_base_library_initv.
5253         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
5254         symver and make it the latestp.
5255         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
5256         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
5257         * include/std/iostream: If init_priority attribute is supported
5258         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
5259         symbol into the object.
5260         * configure: Regenerated.
5261
5262 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5263
5264         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
5265         * include/std/format: Likewise.
5266
5267 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5268
5269         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
5270         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
5271
5272 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5273
5274         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
5275         HTML docs.
5276         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
5277         from doxygen docs.
5278         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
5279         Likewise.
5280         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
5281         Likewise.
5282         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
5283         Likewise.
5284         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
5285         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
5286         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
5287         (_DEFINE_BINARY_OPERATOR): Likewise.
5288
5289 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5290
5291         * include/bits/memory_resource.h: Improve doxygen comments.
5292         * include/std/memory_resource: Likewise.
5293
5294 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5295
5296         PR libstdc++/40380
5297         * include/bits/basic_string.h: Improve doxygen comments.
5298         * include/bits/cow_string.h: Likewise.
5299         * include/bits/forward_list.h: Likewise.
5300         * include/bits/fs_dir.h: Likewise.
5301         * include/bits/fs_path.h: Likewise.
5302         * include/bits/quoted_string.h: Likewise.
5303         * include/bits/stl_bvector.h: Likewise.
5304         * include/bits/stl_map.h: Likewise.
5305         * include/bits/stl_multimap.h: Likewise.
5306         * include/bits/stl_multiset.h: Likewise.
5307         * include/bits/stl_set.h: Likewise.
5308         * include/bits/stl_vector.h: Likewise.
5309         * include/bits/unordered_map.h: Likewise.
5310         * include/bits/unordered_set.h: Likewise.
5311         * include/std/filesystem: Likewise.
5312         * include/std/iomanip: Likewise.
5313
5314 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
5315
5316         PR libstdc++/105081
5317         * src/c++11/random.cc (__throw_syserr): New function.
5318         (random_device::_M_init, random_device::_M_init_pretr1): Use new
5319         function for bad tokens.
5320         (random_device::_M_getval): Use new function for read errors.
5321         * testsuite/util/testsuite_random.h (random_device_available):
5322         Change catch handler to use std::system_error.
5323
5324 2023-04-24  Patrick Palka  <ppalka@redhat.com>
5325
5326         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
5327         Fix propagation of sign bit.
5328         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
5329         non-standard 'signed typedef-name'.  Add some compile-time tests
5330         for right-shifting a negative __max_diff_type value by more than
5331         one.
5332
5333 2023-04-19  Patrick Palka  <ppalka@redhat.com>
5334             Jonathan Wakely  <jwakely@redhat.com>
5335
5336         PR c++/100157
5337         * include/bits/utility.h (_Nth_type): Conditionally define in
5338         terms of __type_pack_element if available.
5339         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
5340         additional errors from the new built-in.
5341
5342 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
5343
5344         Revert:
5345         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5346
5347         PR libstdc++/108969
5348         * src/Makefile.am: Move globals_io.cc to here.
5349         * src/Makefile.in: Regenerate.
5350         * src/c++98/Makefile.am: Remove globals_io.cc from here.
5351         * src/c++98/Makefile.in: Regenerate.
5352         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
5353         symbol name and then export with GLIBCXX_3.4.31 symver.
5354         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
5355         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
5356         Regenerate.
5357         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
5358         Regenerate.
5359         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
5360         Regenerate.
5361         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
5362         Regenerate.
5363         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
5364         Regenerate.
5365         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
5366         Regenerate.
5367         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
5368         Regenerate.
5369         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
5370         Regenerate.
5371         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
5372
5373 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
5374
5375         Revert:
5376         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5377
5378         PR libstdc++/108969
5379         * config/abi/pre/gnu.ver: Fix preprocessor condition.
5380
5381 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5382
5383         * doc/xml/manual/extensions.xml: Fix example to declare and
5384         qualify std::free, and use NULL instead of 0.
5385         * doc/html/manual/ext_demangling.html: Regenerate.
5386         * libsupc++/cxxabi.h: Adjust doxygen comments.
5387
5388 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5389
5390         PR libstdc++/108969
5391         * config/abi/pre/gnu.ver: Fix preprocessor condition.
5392
5393 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
5394
5395         PR libstdc++/108969
5396         * src/Makefile.am: Move globals_io.cc to here.
5397         * src/Makefile.in: Regenerate.
5398         * src/c++98/Makefile.am: Remove globals_io.cc from here.
5399         * src/c++98/Makefile.in: Regenerate.
5400         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
5401         symbol name and then export with GLIBCXX_3.4.31 symver.
5402         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
5403         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
5404         Regenerate.
5405         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
5406         Regenerate.
5407         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
5408         Regenerate.
5409         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
5410         Regenerate.
5411         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
5412         Regenerate.
5413         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
5414         Regenerate.
5415         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
5416         Regenerate.
5417         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
5418         Regenerate.
5419         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
5420
5421 2023-04-18  Patrick Palka  <ppalka@redhat.com>
5422
5423         PR libstdc++/108827
5424         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
5425         for C++23.
5426         * include/std/ranges (range_adaptor_closure): Define for C++23.
5427         * include/std/version (__cpp_lib_ranges): Bump value for
5428         C++23.
5429         * testsuite/std/ranges/version_c++23.cc: Bump expected value
5430         of __cpp_lib_ranges.
5431         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
5432
5433 2023-04-18  Patrick Palka  <ppalka@redhat.com>
5434
5435         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
5436         Define for C++23.
5437         (__cpp_lib_ranges_iota): Likewise.
5438         (__cpp_lib_ranges_find_last): Likewise.
5439         (__cpp_lib_fold): Rename to ...
5440         (__cpp_lib_ranges_fold): ... this.
5441         * include/std/version: As above.
5442         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
5443         renaming __cpp_lib_fold.
5444         * testsuite/std/ranges/version_c++23.cc: Verify values
5445         of the above feature-test macros.
5446
5447 2023-04-18  Patrick Palka  <ppalka@redhat.com>
5448
5449         PR libstdc++/109525
5450         * include/std/ranges (views::_AsConst::operator()): Add
5451         missing const to constant_range test.
5452         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
5453         Improve formatting.  Adjust expected type of v2.
5454         (test03): New test.
5455
5456 2023-04-14  Patrick Palka  <ppalka@redhat.com>
5457
5458         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
5459         (const_sentinel_t): Likewise.
5460         (range_const_reference_t): Likewise.
5461         (constant_range): Likewise.
5462         (__cust_access::__possibly_const_range): Likewise, replacing ...
5463         (__cust_access::__as_const): ... this.
5464         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
5465         (__cust_access::_CEnd::operator()): Likewise.
5466         (__cust_access::_CRBegin::operator()): Likewise.
5467         (__cust_access::_CREnd::operator()): Likewise.
5468         (__cust_access::_CData::operator()): Likewise.
5469         * include/bits/ranges_util.h (ranges::__detail::__different_from):
5470         Make it an alias of std::__detail::__different_from.
5471         (view_interface::cbegin): Define for C++23.
5472         (view_interface::cend): Likewise.
5473         * include/bits/stl_iterator.h (__detail::__different_from): Define.
5474         (iter_const_reference_t): Define for C++23.
5475         (__detail::__constant_iterator): Likewise.
5476         (__detail::__is_const_iterator): Likewise.
5477         (__detail::__not_a_const_iterator): Likewise.
5478         (__detail::__iter_const_rvalue_reference_t): Likewise.
5479         (__detail::__basic_const_iter_cat):: Likewise.
5480         (const_iterator): Likewise.
5481         (__detail::__const_sentinel): Likewise.
5482         (const_sentinel): Likewise.
5483         (basic_const_iterator): Likewise.
5484         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
5485         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
5486         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
5487         Likewise.
5488         (make_const_iterator): Define for C++23.
5489         (make_const_sentinel): Likewise.
5490         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
5491         (as_const_view): Likewise.
5492         (enable_borrowed_range<as_const_view>): Likewise.
5493         (views::__detail::__is_ref_view): Likewise.
5494         (views::__detail::__can_is_const_view): Likewise.
5495         (views::_AsConst, views::as_const): Likewise.
5496         * include/std/span (span::const_iterator): Likewise.
5497         (span::const_reverse_iterator): Likewise.
5498         (span::cbegin): Likewise.
5499         (span::cend): Likewise.
5500         (span::crbegin): Likewise.
5501         (span::crend): Likewise.
5502         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
5503         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
5504         behave independently of C++20 vs C++23.
5505         * testsuite/std/ranges/version_c++23.cc: Verify value of
5506         __cpp_lib_ranges_as_const macro.
5507         * testsuite/24_iterators/const_iterator/1.cc: New test.
5508         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
5509
5510 2023-04-14  Patrick Palka  <ppalka@redhat.com>
5511
5512         * include/bits/ranges_base.h (__cust_access::__as_const)
5513         (__cust_access::_CBegin, __cust::cbegin)
5514         (__cust_access::_CEnd, __cust::cend)
5515         (__cust_access::_CRBegin, __cust::crbegin)
5516         (__cust_access::_CREnd, __cust::crend)
5517         (__cust_access::_CData, __cust::cdata): Move down definitions to
5518         shortly after the definition of input_range.
5519
5520 2023-04-14  Patrick Palka  <ppalka@redhat.com>
5521
5522         * include/bits/ranges_algo.h: Include <optional> for C++23.
5523         (__cpp_lib_fold): Define for C++23.
5524         (in_value_result): Likewise.
5525         (__detail::__flipped): Likewise.
5526         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
5527         (__detail::__indirectly_binary_left_foldable): Likewise.
5528         (___detail:__indirectly_binary_right_foldable): Likewise.
5529         (fold_left_with_iter_result): Likewise.
5530         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
5531         (__fold_left_fn, fold_left): Likewise.
5532         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
5533         Likewise.
5534         (__fold_left_first_fn, fold_left_first): Likewise.
5535         (__fold_right_fn, fold_right): Likewise.
5536         (__fold_right_last_fn, fold_right_last): Likewise.
5537         * include/std/version (__cpp_lib_fold): Likewise.
5538         * testsuite/25_algorithms/fold_left/1.cc: New test.
5539         * testsuite/25_algorithms/fold_right/1.cc: New test.
5540
5541 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
5542
5543         * include/std/format (formatter): Add comment to deleted default
5544         constructor of primary template.
5545         (_Checking_scanner): Add static_assert.
5546
5547 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5548
5549         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
5550         * doc/html/*: Regenerate.
5551
5552 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5553
5554         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
5555         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
5556         namespace to avoid clashing with libc struct.
5557         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
5558         Likewise.
5559         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
5560         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
5561         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
5562         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
5563         * testsuite/experimental/synchronized_value.cc: Require gthreads
5564         and add missing option for pthreads targets.
5565
5566 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5567
5568         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
5569         for C++23.
5570         (__detail::__range_with_movable_reference): Likewise.
5571         (enumerate_view): Likewise.
5572         (enumerate_view::_Iterator): Likewise.
5573         (enumerate_view::_Sentinel): Likewise.
5574         (views::__detail::__can_enumerate_view): Likewise.
5575         (views::_Enumerate, views::enumerate): Likewise.
5576         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
5577         * testsuite/std/ranges/version_c++23.cc: Verify value of
5578         __cpp_lib_ranges_enumerate.
5579         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
5580
5581 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5582
5583         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
5584         Propagate _M_trailing_empty in the const-converting constructor
5585         as per LWG 3904.
5586         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
5587         assertion.
5588         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
5589
5590 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5591
5592         * src/c++17/floating_from_chars.cc: Include <algorithm>,
5593         <iterator>, <limits> and <cstdint>.
5594
5595 2023-04-12  Patrick Palka  <ppalka@redhat.com>
5596
5597         PR libstdc++/108291
5598         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
5599         parameter types of the lambda wrapper passed to adjacent_find.
5600         (chunk_by_view::_M_find_prev): Likewise.
5601         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
5602         New tests.
5603
5604 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5605
5606         PR libstdc++/109482
5607         * include/experimental/internet (basic_endpoint::basic_endpoint()):
5608         Ensure that the required union members are active. Only define
5609         as constexpr for C++20 and later.
5610         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
5611         Likewise.
5612         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
5613         check constexpr default constructor for C++20 and later.
5614         * testsuite/experimental/net/internet/endpoint/extensible.cc:
5615         Likewise.
5616
5617 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
5618
5619         * src/c++20/tzdata.zi: Import new file from 2023c release.
5620
5621 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5622
5623         * include/precompiled/stdc++.h (C++17): Don't double-include
5624         <charconv>, once with wrong conditions.
5625         * testsuite/18_support/96817.cc: Require hosted.
5626         * testsuite/18_support/bad_exception/59392.cc: Ditto.
5627         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
5628         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
5629         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
5630         Ditto.
5631
5632 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5633
5634         * include/bits/c++config: When __STDC_HOSTED__ is zero,
5635         disable _GLIBCXX_DEBUG and, if it was set, enable
5636         _GLIBCXX_ASSERTIONS.
5637         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
5638         Include <bits/c++config.h> when determining whether debug is
5639         set, in order to inherit the logic from above
5640
5641 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5642
5643         * testsuite/17_intro/versionconflict.cc: New test.
5644         * include/std/version: Allow disabling the system_header pragma
5645         via _GLIBCXX_TESTING_SYSHDR.
5646
5647 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
5648
5649         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
5650         Synchronize the definition block with...
5651         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
5652         ... this one here.  Also define the 202202L value, rather than
5653         leaving it up to purely unique_ptr.h, so that the value is
5654         synchronized across all headers.
5655         (__gnu_debug::_Safe_iterator_base): Move into new conditional
5656         block.
5657         * include/std/memory (__cpp_lib_atomic_value_initialization):
5658         Define on freestanding under the same conditions as in
5659         atomic_base.h.
5660         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
5661         Also define on freestanding.
5662         (__cpp_lib_to_chars): Ditto.
5663         (__cpp_lib_gcd): Ditto.
5664         (__cpp_lib_gcd_lcm): Ditto.
5665         (__cpp_lib_raw_memory_algorithms): Ditto.
5666         (__cpp_lib_array_constexpr): Ditto.
5667         (__cpp_lib_nonmember_container_access): Ditto.
5668         (__cpp_lib_clamp): Ditto.
5669         (__cpp_lib_constexpr_char_traits): Ditto.
5670         (__cpp_lib_constexpr_string): Ditto.
5671         (__cpp_lib_sample): Ditto.
5672         (__cpp_lib_lcm): Ditto.
5673         (__cpp_lib_constexpr_iterator): Ditto.
5674         (__cpp_lib_constexpr_char_traits): Ditto.
5675         (__cpp_lib_interpolate): Ditto.
5676         (__cpp_lib_constexpr_utility): Ditto.
5677         (__cpp_lib_shift): Ditto.
5678         (__cpp_lib_ranges): Ditto.
5679         (__cpp_lib_move_iterator_concept): Ditto.
5680         (__cpp_lib_constexpr_numeric): Ditto.
5681         (__cpp_lib_constexpr_functional): Ditto.
5682         (__cpp_lib_constexpr_algorithms): Ditto.
5683         (__cpp_lib_constexpr_tuple): Ditto.
5684         (__cpp_lib_constexpr_memory): Ditto.
5685
5686 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
5687
5688         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
5689         timeout factor on hppa*-*-*.
5690
5691 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
5692
5693         * include/bits/regex.h (sub_match::swap): New function.
5694         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
5695
5696 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
5697
5698         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
5699         example program.
5700         * doc/html/manual/ext_demangling.html: Regenerate.
5701
5702 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
5703
5704         PR tree-optimization/107087
5705         * include/bits/cow_string.h (basic_string::size()): Add
5706         optimizer hint that _S_empty_rep()._M_length is always zero.
5707         (basic_string::length()): Call size().
5708
5709 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
5710
5711         PR libstdc++/109339
5712         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
5713         Add attribute access with access-mode 'none'.
5714         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
5715
5716 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
5717
5718         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
5719         Revert change from member function to data member. Fix for
5720         constant evaluation by detecting which union member is active.
5721         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
5722         flag.
5723
5724 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5725
5726         PR libstdc++/109242
5727         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
5728         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
5729
5730 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5731
5732         * include/experimental/internet (ip::make_address): Implement
5733         missing overload.
5734         (ip::address_v4::broadcast()): Avoid undefined shift.
5735         (ip::basic_endpoint): Fix member functions for constexpr.
5736         (ip::basic_endpoint::_M_is_v6): Replace member function with
5737         data member, adjust member functions using it.
5738         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
5739         content.
5740         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
5741         constexpr checks to work in C++14.
5742         * testsuite/experimental/net/internet/address/v4/creation.cc:
5743         Likewise.
5744         * testsuite/experimental/net/internet/endpoint/cons.cc:
5745         Likewise.
5746         * testsuite/experimental/net/internet/network/v4/cons.cc:
5747         Likewise.
5748         * testsuite/experimental/net/internet/network/v4/members.cc:
5749         Likewise.
5750         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
5751
5752 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5753
5754         * include/std/expected (expected::value() &): Use const lvalue
5755         for unex member passed to bad_expected_access constructor, as
5756         per LWG 3843.
5757
5758 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5759
5760         PR libstdc++/109340
5761         * include/std/expected (expected::transform): Use
5762         std::remove_cv_t instead of std::remove_cvref_t.
5763         (expected::transform_error): Likewise.
5764         (expected<cv void, E>::transform): Likewise.
5765         (expected<cv void, E>::transform_error): Likewise.
5766         * include/std/optional (transform): Use std::remove_cv_t.
5767         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
5768
5769 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
5770
5771         * include/std/optional (optional): Adjust static assertion to
5772         reject arrays and functions as well as references.
5773         * testsuite/20_util/optional/requirements_neg.cc: New test.
5774
5775 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5776
5777         PR libstdc++/103387
5778         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
5779         std::use_facet instead of cached _M_num_get facet.
5780         (istream::operator>>(short&)): Likewise.
5781         (istream::operator>>(int&)): Likewise.
5782         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
5783         std::use_facet instead of cached _M_num_put facet.
5784
5785 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5786
5787         * include/bits/char_traits.h (char_traits::copy): Return without
5788         using memcpy if n==0.
5789         (char_traits::assign): Likewise for memset.
5790
5791 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5792
5793         PR libstdc++/109299
5794         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
5795         hint for compiler that local strings fit in the local buffer.
5796
5797 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
5798
5799         PR libstdc++/109288
5800         * include/std/chrono (__detail::__get_leap_second_info): Update
5801         expiry date of hardcoded leapseconds list.
5802         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
5803         Likewise.
5804         * src/c++20/tzdata.zi: Import new file from 2023a release.
5805         * testsuite/std/time/time_zone/get_info_local.cc: Only check
5806         transitions for Egypt up to 2014.
5807
5808 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
5809
5810         * include/experimental/bits/simd.h (is_simd_flag_type): New.
5811         (_IsSimdFlagType): New.
5812         (copy_from, copy_to, load ctors): Constrain _Flags using
5813         _IsSimdFlagType.
5814
5815 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
5816
5817         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
5818         _Base::_S_divides if the optimized _S_divides function is hidden
5819         via the preprocessor.
5820
5821 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
5822
5823         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
5824         warning if size_t is not unsigned long.
5825
5826 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5827
5828         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
5829         Add overload, as per LWG 3893.
5830         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
5831         Check assignment from nullptr.
5832
5833 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5834
5835         * include/std/format (formatter<const charT[N], charT>): Do not
5836         define partial speclialization, as per LWG 3833.
5837         * testsuite/std/format/formatter/requirements.cc: Check it.
5838
5839 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5840
5841         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
5842         as per LWG 3792.
5843         * testsuite/20_util/exchange/constexpr.cc: Check for it.
5844
5845 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5846
5847         * include/std/version (__cpp_lib_format): Define.
5848         * testsuite/std/format/functions/format.cc: Check it.
5849
5850 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5851
5852         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
5853         Pass rvalues to the callback, as now allowed by LWG 3645.
5854         Enforce preconditions on the return value.
5855         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
5856         Adjust.
5857
5858 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5859
5860         * include/std/format: Add a comment noting that the resolution
5861         of LWG 3720 has been applied..
5862
5863 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5864
5865         * include/bits/regex.h (match_results): Add allocator-extended
5866         copy and move constructors, as per LWG 2195.
5867         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
5868
5869 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
5870
5871         * include/bits/stream_iterator.h (istream_iterator): Add
5872         constexpr to copy constructor, as per LWG 3600.
5873         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
5874         Check copy construction.
5875
5876 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5877
5878         * include/experimental/bits/simd_x86.h
5879         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
5880         with __RECIPROCAL_MATH__.
5881
5882 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5883
5884         * include/experimental/bits/simd_detail.h: Don't define
5885         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
5886         * include/experimental/bits/simd_x86.h (_S_divides): Remove
5887         check for __clang__.
5888
5889 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5890
5891         * include/experimental/bits/simd_detail.h: Don't declare the
5892         simd API as constexpr with Clang.
5893         * include/experimental/bits/simd_x86.h (__movm): New.
5894         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
5895         and ?:.
5896         (_SimdImplX86::_S_masked_unary): Clang does not implement the
5897         same builtins. Implement the function using __movm, ?:, and -
5898         operators on vector_size types instead.
5899
5900 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
5901
5902         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
5903         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
5904
5905 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
5906
5907         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
5908         formatting.
5909
5910 2023-03-20  Marek Polacek  <polacek@redhat.com>
5911
5912         PR c++/109159
5913         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
5914         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
5915         * testsuite/23_containers/span/explicit.cc: Likewise.
5916
5917 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
5918
5919         PR libstdc++/109182
5920         * include/std/expected (expected<void>::expected(in_place_t)):
5921         Remove template-head.
5922
5923 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
5924
5925         PR libstdc++/109165
5926         * testsuite/18_support/coroutines/hash.cc: Use const object
5927         in second call.
5928
5929 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
5930
5931         PR libstdc++/109165
5932         * include/std/coroutine (hash<>::operator()): Add const.
5933         * testsuite/18_support/coroutines/hash.cc: New test.
5934
5935 2023-03-14  Patrick Palka  <ppalka@redhat.com>
5936
5937         PR libstdc++/109111
5938         * include/std/ranges (repeat_view): Remove redundant parentheses
5939         in requires-clause.
5940         (repeat_view::_Iterator): Correct the requires-clause.
5941
5942 2023-03-14  Patrick Palka  <ppalka@redhat.com>
5943
5944         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
5945         Define.
5946         (__cpp_lib_move_iterator_concept): Define for C++20.
5947         (move_iterator::iterator_concept): Strengthen as per P2520R0.
5948         * include/std/version (__cpp_lib_move_iterator_concept): Define
5949         for C++20.
5950         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
5951
5952 2023-03-14  Patrick Palka  <ppalka@redhat.com>
5953
5954         * include/bits/ranges_util.h (view_interface::empty): Add
5955         preferred overloads that use ranges::size when the range is
5956         sized as per LWG 3715.
5957         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
5958
5959 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
5960
5961         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
5962         Only define for C++17 and later.
5963
5964 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
5965
5966         * src/Makefile.am: Add comment about linker script fragments.
5967         * src/Makefile.in: Regenerate.
5968
5969 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
5970
5971         PR libstdc++/62196
5972         * include/bits/mask_array.h (mask_array): Add assertions to
5973         assignment operators.
5974         * include/std/valarray (valarray::operator[](valarray<bool>)):
5975         Add assertions.
5976         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
5977         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
5978         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
5979         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
5980         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
5981         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
5982         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
5983         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
5984         * testsuite/26_numerics/valarray/mask.cc: New test.
5985
5986 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
5987
5988         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
5989         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
5990
5991 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
5992
5993         * doc/Makefile.am: Add comment referring to documentation.
5994         * doc/Makefile.in: Regenerate.
5995
5996 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
5997
5998         * doc/html/*: Regenerate.
5999
6000 2023-03-13  Jonny Grant  <jg@jguk.org>
6001
6002         * doc/xml/faq.xml: Update copyright year.
6003
6004 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
6005
6006         * include/bits/allocator.h: Fix typo in comment.
6007
6008 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
6009
6010         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
6011         if it isn't mangled as DF16b but u6__bf16.
6012
6013 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
6014
6015         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
6016         to https.
6017         * doc/html/manual/documentation_hacking.html: Regenerate.
6018
6019 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
6020
6021         PR libstdc++/109064
6022         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
6023         Remove self-recursion in __init__. Add missing _supports.
6024         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
6025         and unique().
6026
6027 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6028
6029         * include/std/ranges
6030         (cartesian_product_view::_Iterator::_Iterator): Remove
6031         constraint on default constructor as per LWG 3849.
6032         (cartesian_product_view::_Iterator::_M_prev): Adjust position
6033         of _Nm > 0 test as per LWG 3820.
6034         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
6035         checking only on sized cartesian products.
6036         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
6037
6038 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6039
6040         PR libstdc++/109024
6041         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
6042         LWG 3796.
6043         (repeat_view::_M_pred): Likewise.
6044         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
6045         * testsuite/std/ranges/repeat/1.cc (test05): New test.
6046
6047 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6048
6049         PR libstdc++/108362
6050         * include/std/ranges (__detail::__can_single_view): New concept.
6051         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
6052         end of the function declarator.
6053         (__detail::__can_iota_view): New concept.
6054         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
6055         end of the function declarator.
6056         (__detail::__can_istream_view): New concept.
6057         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
6058         end of the function declarator.
6059         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
6060         * testsuite/std/ranges/istream_view.cc (test08): New test.
6061         * testsuite/std/ranges/single_view.cc (test07): New test.
6062
6063 2023-03-09  Patrick Palka  <ppalka@redhat.com>
6064
6065         PR libstdc++/107572
6066         * include/std/ranges (cartesian_product_view::end): When
6067         building the tuple of iterators, avoid calling ranges::begin on
6068         the first range if __empty_tail is false.
6069         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
6070
6071 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
6072
6073         PR libstdc++/108882
6074         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
6075         patterns.
6076
6077 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
6078
6079         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
6080         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
6081         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
6082         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
6083         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
6084
6085 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
6086
6087         PR libstdc++/108882
6088         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
6089         not match symbols in namespace std::__gnu_cxx11_ieee128.
6090         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
6091         std::__gnu_cxx11_ieee128::money_{get,put}.
6092
6093 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
6094
6095         * libsupc++/eh_personality.cc: Fix spelling in comment.
6096
6097 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
6098
6099         * testsuite/30_threads/async/async.cc (test04): Initialize
6100         steady_start, renamed from steady_begin, next to slow_start.
6101         Increase tolerance for final wait.
6102
6103 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
6104
6105         * testsuite/libstdc++-prettyprinters/80276.cc: Add
6106         std::string to debug info.
6107         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
6108
6109 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
6110
6111         PR libstdc++/104852
6112         PR libstdc++/95989
6113         PR libstdc++/52590
6114         * include/bits/std_thread.h (thread::_M_thread_deps): New
6115         static implicitly-inline member function.
6116         (std::thread template ctor): Pass it to _M_start_thread.
6117         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
6118         parameter, force it live on entry.
6119
6120 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
6121
6122         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
6123         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
6124         Likewise.
6125         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
6126         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
6127         Likewise.
6128
6129 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
6130
6131         * include/bits/cow_string.h: Fix typo in comment.
6132
6133 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
6134
6135         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
6136         current time zone cannot be determined.
6137         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
6138         HAVE_TZDB macro and test all members unconditionally.
6139
6140 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
6141
6142         PR libstdc++/108952
6143         * include/bits/uses_allocator_args.h
6144         (uses_allocator_construction_args): Implement LWG 3527.
6145         * testsuite/20_util/pair/astuple/get-2.cc: New test.
6146         * testsuite/20_util/scoped_allocator/108952.cc: New test.
6147         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
6148
6149 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
6150
6151         PR libstdc++/108846
6152         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
6153         Add __assign_one static member function.
6154         (__copy_move<true, false, RA>): Likewise.
6155         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
6156         value.
6157         (__copy_move_backward<IsMove, true, RA>): Likewise.
6158         * testsuite/25_algorithms/copy/108846.cc: New test.
6159         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
6160         * testsuite/25_algorithms/copy_n/108846.cc: New test.
6161         * testsuite/25_algorithms/move/108846.cc: New test.
6162         * testsuite/25_algorithms/move_backward/108846.cc: New test.
6163
6164 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
6165
6166         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
6167         attributes.
6168
6169 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
6170
6171         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
6172         caveat to comment.
6173         * include/bits/basic_string.h (resize_and_overwrite): Add
6174         doxygen comment.
6175
6176 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
6177
6178         * include/experimental/bits/simd.h: Line breaks and indenting
6179         fixed to follow the libstdc++ standard.
6180         * include/experimental/bits/simd_builtin.h: Likewise.
6181         * include/experimental/bits/simd_fixed_size.h: Likewise.
6182         * include/experimental/bits/simd_neon.h: Likewise.
6183         * include/experimental/bits/simd_ppc.h: Likewise.
6184         * include/experimental/bits/simd_scalar.h: Likewise.
6185         * include/experimental/bits/simd_x86.h: Likewise.
6186
6187 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
6188
6189         PR libstdc++/108030
6190         * include/experimental/bits/simd_fixed_size.h
6191         (_SimdImplFixedSize::_S_broadcast): Replace inline with
6192         _GLIBCXX_SIMD_INTRINSIC.
6193         (_SimdImplFixedSize::_S_generate): Likewise.
6194         (_SimdImplFixedSize::_S_load): Likewise.
6195         (_SimdImplFixedSize::_S_masked_load): Likewise.
6196         (_SimdImplFixedSize::_S_store): Likewise.
6197         (_SimdImplFixedSize::_S_masked_store): Likewise.
6198         (_SimdImplFixedSize::_S_min): Likewise.
6199         (_SimdImplFixedSize::_S_max): Likewise.
6200         (_SimdImplFixedSize::_S_complement): Likewise.
6201         (_SimdImplFixedSize::_S_unary_minus): Likewise.
6202         (_SimdImplFixedSize::_S_plus): Likewise.
6203         (_SimdImplFixedSize::_S_minus): Likewise.
6204         (_SimdImplFixedSize::_S_multiplies): Likewise.
6205         (_SimdImplFixedSize::_S_divides): Likewise.
6206         (_SimdImplFixedSize::_S_modulus): Likewise.
6207         (_SimdImplFixedSize::_S_bit_and): Likewise.
6208         (_SimdImplFixedSize::_S_bit_or): Likewise.
6209         (_SimdImplFixedSize::_S_bit_xor): Likewise.
6210         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
6211         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
6212         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
6213         explicit about not always-inline, yet).
6214         (_SimdImplFixedSize::_S_isinf): Likewise.
6215         (_SimdImplFixedSize::_S_isfinite): Likewise.
6216         (_SimdImplFixedSize::_S_isnan): Likewise.
6217         (_SimdImplFixedSize::_S_isnormal): Likewise.
6218         (_SimdImplFixedSize::_S_signbit): Likewise.
6219
6220 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
6221
6222         PR libstdc++/108856
6223         * include/experimental/bits/simd_builtin.h
6224         (_SimdImplBuiltin::_S_masked_unary): More efficient
6225         implementation of masked inc-/decrement for integers and floats
6226         without AVX2.
6227         * include/experimental/bits/simd_x86.h
6228         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
6229         builtins for masked inc-/decrement.
6230
6231 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6232
6233         * include/experimental/executor (executor): Constrain template
6234         constructors.
6235
6236 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6237
6238         * include/experimental/internet (basic_endpoint): Add missing
6239         constexpr to comparison operators.
6240         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
6241
6242 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6243
6244         * include/experimental/internet (network_v4::netmask()): Avoid
6245         undefined shift.
6246         (network_v4::broadcast()): Optimize and fix for targets with
6247         uint_least32_t wider than 32 bits.
6248         (network_v4::to_string(const Allocator&)): Fix for custom
6249         allocators and optimize using to_chars.
6250         (operator==(const network_v4&, const network_v4&)): Add missing
6251         constexpr.
6252         (operator==(const network_v6&, const network_v6&)): Likewise.
6253         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
6254         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
6255
6256 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6257
6258         * include/experimental/internet (address_4(const bytes_type&)):
6259         Use __builtin_bit_cast if available, otherwise convert to
6260         network byte order.
6261         (address_v4::to_bytes()): Likewise, but convert from network
6262         byte order.
6263         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
6264         incorrect tests. Check for constexpr too.
6265         * testsuite/experimental/net/internet/address/v4/creation.cc:
6266         Likewise.
6267         * testsuite/experimental/net/internet/address/v4/members.cc:
6268         Check that bytes_type is a standard-layout type.
6269
6270 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6271
6272         * include/experimental/internet (address_v4::to_string):
6273         Optimize.
6274         * testsuite/experimental/net/internet/address/v4/members.cc:
6275         Check more addresses.
6276
6277 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6278
6279         * include/ext/aligned_buffer.h (__aligned_buffer): Add
6280         diagnostic pragmas.
6281
6282 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
6283
6284         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
6285         before dg-do.
6286
6287 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6288
6289         * testsuite/experimental/simd/tests/reductions.cc: Introduce
6290         max_distance as the type-dependent max error.
6291
6292 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6293
6294         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
6295         int. The actual range of these indexes is very small.
6296
6297 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6298
6299         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
6300         (_S_bit_shift_right): Declare constexpr. The implementation was
6301         already expecting constexpr evaluation.
6302
6303 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6304
6305         PR libstdc++/108030
6306         * include/experimental/bits/simd_detail.h
6307         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
6308         __clang__.
6309
6310 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
6311
6312         PR libstdc++/108030
6313         * include/experimental/bits/simd.h (__vector_broadcast):
6314         Implement via __vector_broadcast_impl instead of
6315         __call_with_n_evaluations + 2 lambdas.
6316         (__vector_broadcast_impl): New.
6317
6318 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6319
6320         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
6321         Avoid destruction of the mutex pool.
6322
6323 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6324
6325         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
6326         on vxworks.
6327         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
6328         Likewise.
6329
6330 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
6331
6332         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
6333         kernel mode.
6334
6335 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
6336
6337         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
6338
6339 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
6340
6341         * include/experimental/bits/simd.h (__extract_part, split):
6342         Use reserved name for template parameter.
6343
6344 2023-02-20  Andreas Schwab  <schwab@suse.de>
6345
6346         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
6347
6348 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
6349
6350         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
6351         * doc/html/faq.html: Regenerate.
6352
6353 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6354
6355         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
6356         between scalars requires the __bit_cast helper function instead
6357         of simd_bit_cast.
6358
6359 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6360
6361         * include/experimental/bits/simd_x86.h
6362         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
6363         (_SimdImplX86::_S_less_equal): Do not call
6364         __builtin_is_constant_evaluated in constexpr-if.
6365
6366 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6367
6368         * testsuite/experimental/simd/tests/bits/verify.h
6369         (verify::verify): Use %zx for size_t in format string.
6370
6371 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6372
6373         * testsuite/experimental/simd/generate_makefile.sh: Generate and
6374         pre-compile pch.h, which includes all headers that do not depend
6375         on command-line macros.
6376         * testsuite/experimental/simd/tests/bits/main.h: New file.
6377         (iterate_abis, main): Moved from verify.h.
6378         * testsuite/experimental/simd/tests/bits/verify.h
6379         (iterate_abis, main): Moved to main.h.
6380         * testsuite/experimental/simd/tests/bits/conversions.h: Add
6381         include guard.
6382         (genHalfBits): Simplify.
6383         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
6384         guard.
6385         (make_alternating_mask): Moved from mask_loadstore.
6386         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
6387         include guard.
6388         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
6389         * testsuite/experimental/simd/tests/mask_loadstore.cc
6390         (make_mask, make_alternating_mask): Removed.
6391         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
6392         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
6393         Removed.
6394         * testsuite/experimental/simd/tests/abs.cc: Only include
6395         bits/main.h.
6396         Ditto.
6397         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
6398         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
6399         * testsuite/experimental/simd/tests/casts.cc: Ditto.
6400         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
6401         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
6402         * testsuite/experimental/simd/tests/generator.cc: Ditto.
6403         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
6404         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
6405         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
6406         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
6407         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
6408         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
6409         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
6410         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
6411         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
6412         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
6413         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
6414         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
6415         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
6416         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
6417         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
6418         * testsuite/experimental/simd/tests/simd.cc: Ditto.
6419         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
6420         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
6421         * testsuite/experimental/simd/tests/splits.cc: Ditto.
6422         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
6423         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
6424         * testsuite/experimental/simd/tests/where.cc: Ditto.
6425
6426 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6427
6428         * testsuite/experimental/simd/README.md: Document the timeout
6429         and timeout-factor directives. Minor typo fixed.
6430
6431 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6432
6433         PR libstdc++/108030
6434         * include/experimental/bits/simd_detail.h: Define
6435         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
6436         * include/experimental/bits/simd.h: Annotate lambdas with
6437         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
6438         * include/experimental/bits/simd_builtin.h: Ditto.
6439         * include/experimental/bits/simd_converter.h: Ditto.
6440         * include/experimental/bits/simd_fixed_size.h: Ditto.
6441         * include/experimental/bits/simd_math.h: Ditto.
6442         * include/experimental/bits/simd_neon.h: Ditto.
6443         * include/experimental/bits/simd_x86.h: Ditto.
6444
6445 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
6446
6447         * include/experimental/bits/simd.h
6448         (_SimdWrapper::_M_is_constprop_none_of)
6449         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
6450         computed result still satisfies __builtin_constant_p.
6451
6452 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6453
6454         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
6455         ellipsis character.
6456
6457 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6458
6459         * include/Makefile.am: Add new header.
6460         * include/Makefile.in: Regenerate.
6461         * include/experimental/synchronized_value: New file.
6462         * testsuite/experimental/synchronized_value.cc: New test.
6463
6464 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6465
6466         * include/experimental/optional: Fix header name in comment.
6467
6468 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6469
6470         * include/std/format (__format::_Arg_store): New class template.
6471         (basic_format_args): Remove nested type _Store and add deduction
6472         guide from _Arg_store.
6473         (basic_format_arg, make_format_args): Adjust.
6474         * testsuite/std/format/arguments/lwg3810.cc: New test.
6475
6476 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6477
6478         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
6479         constraints to constructors and add deleted overloads for the
6480         dangling cases, as per P2255R2.
6481         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
6482         make dangling cases ill-formed.
6483         * testsuite/20_util/pair/dangling_ref.cc: New test.
6484
6485 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6486
6487         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
6488
6489 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6490
6491         * include/ext/throw_allocator.h: Use reserved names for
6492         parameters.
6493
6494 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6495
6496         * testsuite/17_intro/names_pstl.cc: Add space after effective
6497         target name.
6498
6499 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6500
6501         * include/pstl/algorithm_fwd.h (__pattern_search_n)
6502         (__brick_unique_copy, __brick_adjacent_find)
6503         (__brick_generate_n, __pattern_generate_n): Use reserved names
6504         for parameters.
6505         * include/pstl/algorithm_impl.h (__brick_unique_copy)
6506         (__pattern_reverse, __brick_generate_n): Likewise.
6507         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
6508         (__prefer_parallel_tag): Likewise.
6509         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
6510         * include/pstl/glue_numeric_defs.h (adjacent_difference):
6511         Likewise.
6512         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
6513         Likewise.
6514         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
6515         * include/pstl/unseq_backend_simd.h (_Combiner)
6516         (__simd_min_element, __simd_minmax_element): Likewise.
6517         * testsuite/17_intro/names_pstl.cc: New test.
6518
6519 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
6520
6521         * include/bits/fs_ops.h (create_directory): Use reserved name
6522         for parameter.
6523         * include/bits/ranges_algo.h (__contains_subrange_fn):
6524         Likewise.
6525         * include/bits/regex_automaton.h (_State_base::_M_print):
6526         Likewise.
6527         * include/bits/regex_automaton.tcc(_State_base::_M_print):
6528         Likewise.
6529         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
6530         * include/experimental/bits/fs_ops.h (create_directory):
6531         Likewise.
6532         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
6533         (recursive_timed_mutex:_M_clocklock): Likewise.
6534         * include/std/tuple (basic_common_reference): Likewise.
6535         * libsupc++/cxxabi_init_exception.h
6536         (__cxa_init_primary_exception): Likewise.
6537         * testsuite/17_intro/names.cc: Add checks.
6538
6539 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
6540
6541         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
6542         to www.open-std.org and https.
6543         * doc/html/manual/status.html: Regenerate.
6544
6545 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
6546
6547         PR libstdc++/103934
6548         * include/std/atomic (atomic_flag_wait): Add.
6549         (atomic_flag_wait_explicit): Add.
6550         (atomic_flag_notify): Add.
6551         (atomic_flag_notify_explicit): Add.
6552         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
6553         Add test case to cover missing atomic_flag free functions.
6554
6555 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
6556
6557         PR libstdc++/103934
6558         * include/std/atomic (atomic_flag_test): Add.
6559         (atomic_flag_test_explicit): Add.
6560         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
6561         test case to cover missing atomic_flag free functions.
6562         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
6563         Likewise.
6564
6565 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
6566
6567         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
6568         "The Component Object Model" reference.
6569         * doc/html/manual/policy_data_structures.html: Regenerate.
6570
6571 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
6572
6573         * doc/xml/manual/containers.xml: Tweak a link to N1780
6574         (C++ standard).
6575         * doc/html/manual/associative.html: Regenerate.
6576
6577 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
6578
6579         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
6580         * doc/html/manual/facets.html: Regenerate.
6581
6582 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
6583
6584         * doc/xml/manual/policy_data_structures_biblio.xml: Update
6585         link to "Worst-case efficient priority queues".
6586         * doc/html/manual/policy_data_structures.html: Regenerate.
6587
6588 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
6589
6590         * doc/xml/manual/using.xml: Document newly-freestanding
6591         headers and the effect of the -ffreestanding flag.
6592         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
6593         completed.
6594         * doc/xml/manual/configure.xml: Document that hosted installs
6595         respect __STDC_HOSTED__.
6596         * doc/xml/manual/test.xml: Document how to run tests in
6597         freestanding mode.
6598         * doc/html/*: Regenerate.
6599
6600 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
6601
6602         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
6603         (__find_last_if_fn): Likewise.
6604
6605 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
6606
6607         * include/std/type_traits: Add diagnostic pragmas around
6608         references to deprecated std::aligned_storage and
6609         std::aligned_union traits.
6610         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
6611         Add dg-warning for et c++23.
6612         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
6613         Likewise.
6614         * testsuite/20_util/aligned_storage/value.cc: Likewise.
6615         * testsuite/20_util/aligned_union/1.cc: Likewise.
6616         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
6617         Likewise.
6618
6619 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
6620
6621         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
6622         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
6623         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
6624         * include/std/type_traits (aligned_storage, aligned_union)
6625         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
6626         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
6627         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
6628
6629 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
6630
6631         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
6632         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
6633         consistent with other 'deprecated' macros.
6634         * include/std/type_traits (is_pod, is_pod_v): Use
6635         _GLIBCXX20_DEPRECATED_SUGGEST instead.
6636
6637 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
6638
6639         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
6640         * Makefile.in: Regenerate.
6641         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
6642         There's no history to be compatible with.
6643         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
6644         source files from the build.
6645         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
6646         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
6647         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
6648         * src/Makefile.in: Regenerate.
6649         * src/c++11/Makefile.in: Regenerate.
6650         * src/c++17/Makefile.in: Regenerate.
6651         * src/c++20/Makefile.in: Regenerate.
6652         * src/c++98/Makefile.in: Regenerate.
6653
6654 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
6655
6656         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
6657         filesystem, libbacktrace and experimental.
6658         * src/Makefile.in: Regenerate.
6659
6660 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
6661
6662         PR libstdc++/108672
6663         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
6664         instead of int32_t.
6665
6666 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
6667
6668         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
6669         * doc/html/manual/documentation_hacking.html: Regenerate.
6670
6671 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
6672
6673         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
6674         storage to the move-from instance when allocators are equal.
6675         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
6676         New test case.
6677
6678 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
6679
6680         * config/os/gnu-linux/os_defines.h [!__linux__]
6681         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
6682
6683 2023-02-03  Patrick Palka  <ppalka@redhat.com>
6684
6685         * include/bits/ranges_algo.h (__find_last_fn, find_last):
6686         Define.
6687         (__find_last_if_fn, find_last_if): Define.
6688         (__find_last_if_not_fn, find_last_if_not): Define.
6689         * testsuite/25_algorithms/find_last/1.cc: New test.
6690         * testsuite/25_algorithms/find_last_if/1.cc: New test.
6691         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
6692
6693 2023-02-03  Patrick Palka  <ppalka@redhat.com>
6694
6695         * include/bits/ranges_algo.h (out_value_result): Define.
6696         (iota_result): Define.
6697         (__iota_fn, iota): Define.
6698         * testsuite/25_algorithms/iota/1.cc: New test.
6699
6700 2023-02-03  Patrick Palka  <ppalka@redhat.com>
6701
6702         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
6703         (__contains_subrange_fn, contains_subrange): Define.
6704         * testsuite/25_algorithms/contains/1.cc: New test.
6705         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
6706
6707 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
6708
6709         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
6710         * doc/html/manual/abi.html: Regenerate.
6711
6712 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6713
6714         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
6715         errc::function_not_supported instead of errc::not_supported.
6716
6717 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6718
6719         * include/std/sstream  (basic_stringbuf::view): Define for old
6720         std::string ABI.
6721         (basic_istringstream::view, basic_0stringstream::view)
6722         (basic_stringstream::view): Likewise.
6723         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
6724         { dg-require-effective-target cxx11_abi }.
6725         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
6726         Likewise.
6727         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
6728         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
6729         Likewise.
6730         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
6731         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
6732         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
6733         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
6734         Likewise.
6735
6736 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6737
6738         PR libstdc++/108636
6739         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
6740         conversion operators for directory iterator comparisons with
6741         std::default_sentinel_t.
6742         * include/bits/fs_path.h (path::path(string_view, _Type))
6743         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
6744         definitions to ...
6745         * src/c++17/fs_path.cc: ... here.
6746         * testsuite/27_io/filesystem/path/108636.cc: New test.
6747
6748 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
6749
6750         * include/std/variant (variant::operator=): Implement resolution
6751         of LWG 3585.
6752         * testsuite/20_util/variant/lwg3585.cc: New test.
6753
6754 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
6755
6756         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
6757         link to https.
6758         * doc/html/manual/using_exceptions.html: Regenerate.
6759
6760 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
6761
6762         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
6763         * doc/html/manual/debug.html: Regenerate.
6764
6765 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
6766
6767         * src/c++11/random.cc (random_device::_M_fini): Do not try to
6768         close the file handle if the target doesn't support the
6769         /dev/random and /dev/urandom files.
6770
6771 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
6772
6773         * config/os/generic/error_constants.h (errc::value_too_large)
6774         [__AVR__]: Define.
6775         * src/c++11/system_error.cc
6776         (system_category::default_error_condition) [__AVR__]: Only match
6777         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
6778         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
6779         for ENOENT etc. in switch.
6780         (fs::remove_all) [__AVR__]: Likewise.
6781         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
6782         close etc.
6783
6784 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
6785
6786         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
6787         embed_zoneinfo=no
6788         * configure: Regenerate.
6789
6790 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
6791
6792         PR testsuite/108632
6793         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
6794         struct at end of S0.
6795
6796 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
6797
6798         * doc/xml/manual/shared_ptr.xml: Move links from both
6799         http://open-std.org and http://www.open-std.org to
6800         https://www.open-std.org.
6801         * doc/html/manual/memory.html: Regenerate.
6802
6803 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
6804
6805         * doc/xml/manual/appendix_contributing.xml: Adjust link to
6806         ISO C++ standard at ANSI.
6807         Move link to www.open-std.org to https.
6808         * doc/html/manual/appendix_contributing.html: Regenerate.
6809
6810 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
6811
6812         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
6813         links to https.
6814         * doc/html/manual/documentation_hacking.html: Regenerate.
6815
6816 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
6817
6818         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
6819         * doc/html/manual/abi.html: Regenerate.
6820
6821 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
6822
6823         PR libstdc++/108568
6824         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
6825         include features.h if present and then check __GLIBC__ and
6826         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
6827         __GLIBC_PREREQ which isn't defined yet.
6828
6829 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
6830
6831         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
6832         string literal.
6833
6834 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
6835
6836         PR libstdc++/108554
6837         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
6838
6839 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
6840
6841         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
6842         rules named "+" for compatibility with older tzdata.zi files.
6843
6844 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
6845
6846         PR libstdc++/108554
6847         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
6848         nonnull attribute.
6849         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
6850         attributes.
6851         * testsuite/23_containers/map/modifiers/108554.cc: New test.
6852
6853 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
6854
6855         PR libstdc++/108530
6856         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
6857         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
6858
6859 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
6860
6861         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
6862         use https.
6863         * doc/html/manual/bugs.html: Regenerate.
6864
6865 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
6866
6867         PR libstdc++/108530
6868         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
6869         /etc/sysconfig/clock.
6870
6871 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
6872
6873         PR libstdc++/102301
6874         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
6875         std::make_reverse_iterator.
6876         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
6877         (make_from_tuple): Add static assertion from P2255 to diagnose
6878         dangling references.
6879         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
6880         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
6881
6882 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
6883
6884         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
6885         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
6886         (_Safe_iterator::operator++(int)): Use latter.
6887         (_Safe_iterator::operator--(int)): Likewise.
6888         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
6889         check.
6890         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
6891         New.
6892         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
6893         (_Safe_local_iterator::operator++(int)): Use latter.
6894         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
6895         entry associated to the array entry.
6896
6897 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
6898
6899         * include/bits/fs_path.h (u8path): Add deprecated attribute.
6900         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
6901         -Wno-deprecated-declarations for C++20 and later.
6902         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
6903         Likewise.
6904         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
6905         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
6906         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
6907
6908 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
6909
6910         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
6911         Always call _M_fini and _M_getentropy.
6912
6913 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
6914
6915         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
6916         to www.open-std.org to use https.
6917         (COM: Component Model Object Technologies): Rename from...
6918         (The Component Object Model): ...to.
6919         * doc/html/manual/policy_data_structures.html: Regenerate.
6920
6921 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
6922
6923         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
6924         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
6925         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
6926
6927 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
6928
6929         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
6930         of $host. Fix check for file being present during native build.
6931         * configure: Regenerate.
6932
6933 2023-01-17  Martin Liska  <mliska@suse.cz>
6934
6935         * src/libbacktrace/Makefile.in: Regenerate.
6936
6937 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
6938
6939         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
6940
6941 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
6942
6943         PR libstdc++/108413
6944         * include/c_compatibility/stdatomic.h: Change copyright line to
6945         be consistent with other headers contributed under DCO terms.
6946         * include/std/expected: Add full stop to copyright line.
6947         * src/c++20/tzdb.cc: Likewise.
6948
6949 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
6950
6951         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
6952         https.
6953         * doc/xml/manual/status_cxx2017.xml: Ditto.
6954         * doc/xml/manual/status_cxx2020.xml: Ditto.
6955         * doc/xml/manual/status_cxx2023.xml: Ditto.
6956         * doc/html/manual/status.html: Regenerate.
6957
6958 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
6959
6960         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
6961         and fail gracefully if defining the weak symbol doesn't work.
6962
6963 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
6964
6965         PR libstdc++/108288
6966         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
6967         fix to other iterator category.
6968         (_Safe_iterator<>::operator--(int)): Likewise.
6969         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
6970         Fix deadlock.
6971         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
6972         (invalid_local_iterator_post_increment): New.
6973         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
6974         New test.
6975         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
6976         New test.
6977
6978 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
6979
6980         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
6981         dg-options.
6982
6983 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
6984
6985         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
6986
6987 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
6988
6989         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
6990         windows.h. Add pecoff as FORMAT_FILE.
6991         * config.h.in: Regenerate.
6992         * configure: Regenerate.
6993         * src/libbacktrace/Makefile.am: Regenerate.
6994         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
6995
6996 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
6997
6998         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
6999         raw __name if __cxa_demangle could not demangle it.
7000
7001 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7002
7003         PR libstdc++/108409
7004         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
7005         variable.
7006
7007 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7008
7009         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
7010         loading tzdb.
7011         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
7012         effective target.
7013         * testsuite/std/time/tzdb_list/1.cc: Likewise.
7014
7015 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7016
7017         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
7018         --with-libstdcxx-zoneinfo-dir configure option with
7019         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
7020         a directory.
7021         * config.h.in: Regenerate.
7022         * configure: Regenerate.
7023         * doc/xml/manual/configure.xml: Document configure option.
7024         * doc/html/manual/configure.html: Regenerate.
7025         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
7026         * src/c++20/Makefile.in: Regenerate.
7027         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
7028         null pointer if no directory is configured.
7029         (zoneinfo_dir): Replace with ...
7030         (zoneinfo_file): New function.
7031         (tzdata_stream): New istream class.
7032         (remote_version, reload_tzdb): Use tzdata_stream.
7033         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
7034         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
7035         tzdata.zi file in default location.
7036         * src/c++20/tzdata.zi: New file.
7037
7038 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
7039
7040         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
7041         * testsuite/std/time/month_day/io.cc: New test.
7042         * testsuite/std/time/month_day_last/io.cc: New test.
7043         * testsuite/std/time/month_weekday/io.cc: New test.
7044         * testsuite/std/time/month_weekday_last/io.cc: New test.
7045         * testsuite/std/time/weekday_indexed/io.cc: New test.
7046         * testsuite/std/time/weekday_last/io.cc: New test.
7047         * testsuite/std/time/year_month/io.cc: New test.
7048         * testsuite/std/time/year_month_day_last/io.cc: New test.
7049         * testsuite/std/time/year_month_weekday/io.cc: New test.
7050         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
7051
7052 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
7053
7054         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
7055         specifications.
7056         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
7057         export.
7058
7059 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7060
7061         * include/bits/std_mutex.h: Include <errno.h>.
7062
7063 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
7064
7065         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
7066         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
7067         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
7068         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
7069         std::make_unique with a freestanding-compatible wrapper around
7070         unique_ptr.
7071         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
7072         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
7073         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
7074         Ditto.
7075         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
7076         of __cpp_lib_ranges in !HOSTED.
7077
7078 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
7079
7080         * include/Makefile.am: Install bits/char_traits.h,
7081         std/string_view
7082         * include/Makefile.in: Regenerate.
7083         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
7084         mbstate-only bits behind appropriate #ifs.
7085         * include/std/string_view: Gate <iostream> functionality behind
7086         HOSTED.
7087         * include/std/version: Enable __cpp_lib_constexpr_string_view
7088         and __cpp_lib_starts_ends_with in !HOSTED.
7089         * include/std/ranges: Re-enable __is_basic_string_view on
7090         freestanding, include <string_view> directly.
7091         * include/precompiled/stdc++.h: Include <string_view> when
7092         !HOSTED too.
7093         * testsuite/20_util/function_objects/searchers.cc: Skip testing
7094         boyer_moore searchers on freestanding
7095         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
7096         <string>-related tests behind __STDC_HOSTED__.
7097         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
7098         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
7099         unused <stdexcept> include.
7100         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
7101         unused <vector> include.
7102         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
7103         Guard <string> related testing behind __STDC_HOSTED__.
7104         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
7105         Guard <stdexcept> related tests behind __STDC_HOSTED__.
7106         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
7107         Ditto.
7108         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
7109         Guard <stdexcept> tests behind __STDC_HOSTED__.
7110         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
7111         Enable test on freestanding, guard <stdexcept> bits behind
7112         __STDC_HOSTED__.
7113         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
7114         Guard <stdexcept> bits behind __STDC_HOSTED__.
7115         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
7116         Ditto.
7117
7118 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
7119
7120         PR libstdc++/86419
7121         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
7122         errors in incomplete multibyte sequences.
7123         (utf16_in): Remove surrogates parameter. Fix conditions for
7124         returning partial.
7125         (utf16_out): Fix condition for returning partial.
7126         (ucs2_in): Do not pass surrogates argument to utf16_in.
7127         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
7128         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
7129         tests.
7130         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
7131         test.
7132
7133 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7134
7135         PR libstdc++/108331
7136         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
7137         __GTHREAD_LEGACY_MUTEX_T if defined.
7138
7139 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7140
7141         PR libstdc++/108327
7142         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
7143         Export __try_use_facet specializations for facets in namespace
7144         __gnu_cxx_ldbl128.
7145         * config/os/gnu-linux/ldbl-ieee128-extra.ver
7146         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
7147         __gnu_cxx_ieee128.
7148         * testsuite/util/testsuite_abi.cc: Add to lists of known and
7149         latest versions.
7150
7151 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
7152
7153         * include/bits/std_mutex.h: Remove <system_error> include.
7154         * include/std/condition_variable: Add <bits/error_constants.h>
7155         include.
7156         * include/std/mutex: Likewise.
7157         * include/std/shared_mutex: Likewise.
7158
7159 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
7160
7161         PR libstdc++/77691
7162         * include/experimental/memory_resource
7163         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
7164         (do_allocate, do_deallocate): Check it.
7165         * testsuite/experimental/memory_resource/new_delete_resource.cc:
7166         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
7167
7168 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
7169
7170         * doc/xml/manual/abi.xml: Add latest library versions.
7171         * doc/html/manual/abi.html: Regenerate.
7172
7173 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
7174
7175         PR libstdc++/107189
7176         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
7177         unused _Alloc_node instance.
7178
7179 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
7180
7181         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
7182         Define as unsigned long if always lock-free, and unsigned int
7183         otherwise.
7184
7185 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
7186
7187         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
7188         __catch macros for exception handling.
7189
7190 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
7191
7192         PR libstdc++/108221
7193         * include/bits/stl_algobase.h (__lg): Replace six overloads with
7194         a single function template for all integer types.
7195         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
7196         arithmetic results back to _Distance.
7197
7198 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
7199
7200         PR libstdc++/108221
7201         * include/std/span (span::span()): Un-simplify constraint to
7202         work for size_t of lesser rank than int.
7203
7204 2023-01-07  LIU Hao  <lh_mouse@126.com>
7205
7206         PR middle-end/108300
7207         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
7208         <windows.h>.
7209         * src/c++11/thread.cc: Likewise.
7210         * src/c++17/fs_ops.cc: Likewise.
7211         * src/filesystem/ops.cc: Likewise.
7212
7213 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7214
7215         PR libstdc++/108228
7216         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
7217
7218 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7219
7220         PR libstdc++/108235
7221         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
7222         template and partial specialization for synchronizing access to
7223         time_zone::_Impl::infos.
7224         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
7225         rules_counter.
7226
7227 2023-01-06  Patrick Palka  <ppalka@redhat.com>
7228
7229         PR libstdc++/108260
7230         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
7231         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
7232         (__cpp_lib_ranges_chunk): Likewise.
7233         (__cpp_lib_ranges_slide): Likewise.
7234         (__cpp_lib_ranges_chunk_by): Likewise.
7235         (__cpp_lib_ranges_join_with): Likewise.
7236         (__cpp_lib_ranges_repeat): Likewise.
7237         (__cpp_lib_ranges_stride): Likewise.
7238         (__cpp_lib_ranges_cartesian_product): Likewise.
7239         (__cpp_lib_ranges_as_rvalue): Likewise.
7240         * include/std/version: Ditto.
7241         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
7242         feature-test macro.
7243         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
7244         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
7245         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
7246         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
7247         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
7248         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
7249         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
7250         * testsuite/std/ranges/repeat/1.cc: Likewise.
7251         * testsuite/std/ranges/zip/1.cc: Likewise.
7252         * testsuite/std/ranges/version_c++23.cc: New test.
7253
7254 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7255
7256         PR libstdc++/108214
7257         * include/std/bitset (operator>>): Use alloca in the right
7258         scope, not in a constructor.
7259         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
7260
7261 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7262
7263         PR libstdc++/108221
7264         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
7265         Disable visiting floating-point types.
7266
7267 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
7268
7269         PR libstdc++/108288
7270         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
7271         (_Safe_iterator::operator--(int)): Do not hold lock around
7272         construction of return value.
7273
7274 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
7275
7276         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
7277         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
7278         lock release.  Revise loop.
7279         (__atomic_add): Likewise.
7280
7281 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7282
7283         PR libstdc++/108212
7284         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
7285         variable.
7286         (StdChronoTimePointPrinter::to_string): Use it.
7287
7288 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7289
7290         PR libstdc++/108290
7291         * include/std/functional (_Bind_front): Add no_unique_address
7292         attribute to data members.
7293         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
7294         size of call wrappers with empty types for targets and bound
7295         arguments.
7296
7297 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7298
7299         PR libstdc++/108211
7300         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
7301         using only last component of the name.
7302
7303 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7304
7305         PR libstdc++/108228
7306         PR libstdc++/108235
7307         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
7308         the latest symbol version.
7309         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
7310         atomic<_Node*> is not always lock free.
7311         (USE_ATOMIC_LIST_HEAD): New macro.
7312         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
7313         definition of weak symbol.
7314         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
7315         (tzdb_list::_Node::_S_list_head): New function for accessing
7316         list head efficiently.
7317         (tzdb_list::_Node::_S_cache_list_head): New function for
7318         updating _S_list_head.
7319
7320 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
7321
7322         PR libstdc++/108265
7323         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
7324         duration rep is unsigned.
7325         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
7326
7327 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
7328
7329         PR libstdc++/108228
7330         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
7331         Add __gnu_cxx::zoneinfo_dir_override().
7332
7333 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
7334
7335         PR libstdc++/108258
7336         * include/std/array (__array_traits<T, 0>::operator T*()): Add
7337         constexpr.
7338         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
7339         std::array<T, 0>::data().
7340
7341 \f
7342 Copyright (C) 2023 Free Software Foundation, Inc.
7343
7344 Copying and distribution of this file, with or without modification,
7345 are permitted in any medium without royalty provided the copyright
7346 notice and this notice are preserved.