libstdc++-v3/ChangeLog

   1 2024-02-06  Torbjörn SVENSSON  <torbjorn.svensson@foss.st.com>
   2
   3         * testsuite/lib/libstdc++.exp: Use "nul" for Windows, "/dev/null"
   4         for other environments.
   5
   6 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
   7
   8         * include/std/format (__format::_Spec::_M_reserved): Define new
   9         bit-field members to reserve padding bits for future extensions.
  10
  11 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
  12
  13         * src/experimental/Makefile.am: Use libstdc++fsconvenience.a
  14         instead of libstdc++fs.a.
  15         * src/experimental/Makefile.in: Regenerate.
  16         * src/filesystem/Makefile.am: Build libstdc++fsconvenience.a as
  17         well.
  18         * src/filesystem/Makefile.in: Regenerate.
  19
  20 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
  21
  22         * include/bits/text_encoding-data.h: Regenerate.
  23         * include/bits/unicode-data.h: Regenerate.
  24         * scripts/gen_text_encoding_data.py: Add copyright and license
  25         text to the output.
  26
  27 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  28
  29         PR libstdc++/113335
  30         * include/bits/std_function.h (__function_guide_helper): Add
  31         partial specialization for explicit object member functions, as
  32         per LWG 3617.
  33         * testsuite/20_util/function/cons/deduction_c++23.cc: Check
  34         explicit object member functions.
  35         * testsuite/30_threads/packaged_task/cons/deduction_c++23.cc:
  36         Likewise.
  37
  38 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  39
  40         * testsuite/17_intro/names.cc [_AIX]: Undefine "u".
  41
  42 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  43
  44         * include/experimental/internet (network_v6::network): Define.
  45         (network_v6::hosts): Finish implementing.
  46         (network_v6::to_string): Do not concatenate std::string to
  47         arbitrary std::basic_string specialization.
  48         * testsuite/experimental/net/internet/network/v6/cons.cc: New
  49         test.
  50
  51 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  52
  53         PR libstdc++/90276
  54         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: Fix
  55         comparison function to use less-than instead of equality.
  56
  57 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  58
  59         PR libstdc++/90276
  60         * testsuite/util/pstl/test_utils.h (reverse_invoker): Do not use
  61         perfect forwarding for iterator arguments.
  62
  63 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  64
  65         * include/std/string_view (basic_string_view(R&&)): Remove
  66         constraint that traits_type must be the same, as per LWG 3857.
  67         * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc:
  68         Explicit conversion between different specializations should be
  69         allowed.
  70         * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc:
  71         Likewise.
  72
  73 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  74
  75         * include/std/syncstream (basic_osyncstream::operator=): Remove
  76         noexcept, as per LWG 3867.
  77
  78 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  79
  80         * include/std/generator (promise_type::yield_value): Remove
  81         noexcept from fourth overload, as per LWG 3894.
  82
  83 2024-02-01  Patrick Palka  <ppalka@redhat.com>
  84
  85         PR libstdc++/113309
  86         PR libstdc++/109203
  87         * include/bits/ranges_util.h (__detail::__pair_like): Don't
  88         define in C++23 mode.
  89         (__detail::__pair_like_convertible_from): Adjust as per P2165R4.
  90         (__detail::__is_subrange<subrange>): Moved from <ranges>.
  91         (__detail::__is_tuple_like_v<subrange>): Likewise.
  92         * include/bits/stl_iterator.h: Include <bits/utility.h> for
  93         C++23.
  94         (__different_from): Move to <concepts>.
  95         (__iter_key_t): Adjust for C++23 as per P2165R4.
  96         (__iter_val_t): Likewise.
  97         * include/bits/stl_pair.h (pair, array): Forward declare.
  98         (get): Forward declare all overloads relevant to P2165R4
  99         tuple-like constructors.
 100         (__is_tuple_v): Define for C++23.
 101         (__is_tuple_like_v): Define for C++23.
 102         (__tuple_like): Define for C++23 as per P2165R4.
 103         (__pair_like): Define for C++23 as per P2165R4.
 104         (__eligibile_tuple_like): Define for C++23.
 105         (__eligibile_pair_like): Define for C++23.
 106         (pair::_S_constructible_from_pair_like): Define for C++23.
 107         (pair::_S_convertible_from_pair_like): Define for C++23.
 108         (pair::_S_dangles_from_pair_like): Define for C++23.
 109         (pair::pair): Define overloads taking a tuple-like type for
 110         C++23 as per P2165R4.
 111         (pair::_S_assignable_from_tuple_like): Define for C++23.
 112         (pair::_S_const_assignable_from_tuple_like): Define for C++23.
 113         (pair::operator=): Define overloads taking a tuple-like type for
 114         C++23 as per P2165R4.
 115         * include/bits/utility.h (ranges::__detail::__is_subrange):
 116         Moved from <ranges>.
 117         * include/bits/version.def (tuple_like): Define for C++23.
 118         * include/bits/version.h: Regenerate.
 119         * include/std/concepts (__different_from): Moved from
 120         <bits/stl_iterator.h>.
 121         (ranges::__swap::__adl_swap): Clarify which __detail namespace.
 122         * include/std/map (__cpp_lib_tuple_like): Define C++23.
 123         * include/std/ranges (__detail::__is_subrange): Moved to
 124         <bits/utility.h>.
 125         (__detail::__is_subrange<subrange>): Moved to <bits/ranges_util.h>
 126         (__detail::__has_tuple_element): Adjust for C++23 as per P2165R4.
 127         (__detail::__tuple_or_pair): Remove as per P2165R4.  Replace all
 128         uses with plain tuple as per P2165R4.
 129         * include/std/tuple (__cpp_lib_tuple_like): Define for C++23.
 130         (__tuple_like_tag_t): Define for C++23.
 131         (__tuple_cmp): Forward declare for C++23.
 132         (_Tuple_impl::_Tuple_impl): Define overloads taking
 133         __tuple_like_tag_t and a tuple-like type for C++23.
 134         (_Tuple_impl::_M_assign): Likewise.
 135         (tuple::__constructible_from_tuple_like): Define for C++23.
 136         (tuple::__convertible_from_tuple_like): Define for C++23.
 137         (tuple::__dangles_from_tuple_like): Define for C++23.
 138         (tuple::tuple): Define overloads taking a tuple-like type for
 139         C++23 as per P2165R4.
 140         (tuple::__assignable_from_tuple_like): Define for C++23.
 141         (tuple::__const_assignable_from_tuple_like): Define for C++23.
 142         (tuple::operator=): Define overloads taking a tuple-like type
 143         for C++23 as per P2165R4.
 144         (tuple::__tuple_like_common_comparison_category): Define for C++23.
 145         (tuple::operator<=>): Define overload taking a tuple-like type
 146         for C++23 as per P2165R4.
 147         (array, get): Forward declarations moved to <bits/stl_pair.h>.
 148         (tuple_cat): Constrain with __tuple_like for C++23 as per P2165R4.
 149         (apply): Likewise.
 150         (make_from_tuple): Likewise.
 151         (__tuple_like_common_reference): Define for C++23.
 152         (basic_common_reference): Adjust as per P2165R4.
 153         (__tuple_like_common_type): Define for C++23.
 154         (common_type): Adjust as per P2165R4.
 155         * include/std/unordered_map (__cpp_lib_tuple_like): Define for
 156         C++23.
 157         * include/std/utility (__cpp_lib_tuple_like): Define for C++23.
 158         * testsuite/std/ranges/zip/1.cc (test01): Adjust to handle pair
 159         and 2-tuple interchangeably.
 160         (test05): New test.
 161         * testsuite/20_util/pair/p2165r4.cc: New test.
 162         * testsuite/20_util/tuple/p2165r4.cc: New test.
 163
 164 2024-02-01  Patrick Palka  <ppalka@redhat.com>
 165
 166         * include/bits/stl_pair.h (pair::_S_const_assignable): Define,
 167         factored out from ...
 168         (pair::operator=): ... the constraints of the const overloads.
 169
 170 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
 171
 172         * include/bits/version.tpl: Do not use def-file-line for each
 173         macro being defined.
 174         * include/bits/version.h: Regenerate.
 175
 176 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
 177
 178         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Adjust
 179         dg-error pattern.
 180         * testsuite/25_algorithms/copy_backward/debug/constexpr_neg.cc:
 181         Likewise.
 182         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
 183         Likewise.
 184         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_neg.cc:
 185         Likewise.
 186         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_pred_neg.cc:
 187         Likewise.
 188         * testsuite/25_algorithms/lower_bound/debug/constexpr_valid_range_neg.cc:
 189         Likewise.
 190         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_neg.cc:
 191         Likewise.
 192         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_pred_neg.cc:
 193         Likewise.
 194         * testsuite/25_algorithms/upper_bound/debug/constexpr_valid_range_neg.cc:
 195         Likewise.
 196
 197 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
 198
 199         * include/experimental/internet (network_v4::to_string()):
 200         Remove lambda and use of resize_and_overwrite.
 201
 202 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 203
 204         * acinclude.m4 (GLIBCXX_CHECK_TEXT_ENCODING): Use <xlocale.h> if
 205         needed for newlocale.
 206         * configure: Regenerate.
 207         * src/c++26/text_encoding.cc: Use <xlocale.h>.
 208
 209 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 210             Ewan Higgs  <ewan.higgs@gmail.com>
 211
 212         * include/bits/text_encoding-data.h: Regenerate.
 213         * scripts/gen_text_encoding_data.py: Add extra_aliases dict
 214         containing "ASCII".
 215         * testsuite/std/text_encoding/cons.cc: Check "ascii" is known.
 216
 217 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 218
 219         * doc/xml/manual/using.xml: Update tables of supported headers.
 220         * doc/html/*: Regenerate.
 221
 222 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 223
 224         * include/std/bitset (_Base_bitset::_M_do_to_ullong): Avoid
 225         -Wshift-count-overflow warning.
 226
 227 2024-01-30  Jonathan Wakely  <jwakely@redhat.com>
 228
 229         * testsuite/std/time/clock/gps/io.cc: Fix expected result in
 230         assertion and call test_format() from main.
 231
 232 2024-01-29  François Dumont  <fdumont@gcc.gnu.org>
 233
 234         * doc/xml/manual/debug_mode.xml: Link against libstdc++exp.a to use
 235         _GLIBCXX_DEBUG_BACKTRACE macro.
 236
 237 2024-01-24  Huanghui Nie  <nnnjkk@gmail.com>
 238             Théo Papadopoulo   <papadopoulo@gmail.com>
 239
 240         * include/bits/hashtable.h (_Hahstable<>::_M_remove_bucket_begin): Remove
 241         _M_before_begin check and cleanup implementation.
 242
 243 2024-01-22  Jonathan Wakely  <jwakely@redhat.com>
 244
 245         * testsuite/std/time/clock/file/io.cc: Fix expected result in
 246         assertion and call test_format() from main.
 247
 248 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
 249
 250         PR libstdc++/113500
 251         * include/bits/chrono_io.h (__formatter_chrono::_M_S): Fix
 252         printing of subseconds with floating-point rep.
 253         (__formatter_chrono::_M_format_to_ostream): Do not write
 254         time_point specializations directly to the ostream.
 255         (formatter<chrono::sys_time<D>, C>::parse): Do not allow an
 256         empty chrono-spec if the type fails to meet the constraints for
 257         writing to an ostream with operator<<.
 258         * testsuite/std/time/clock/file/io.cc: Check formatting
 259         non-integral times with empty chrono-specs.
 260         * testsuite/std/time/clock/gps/io.cc: Likewise.
 261         * testsuite/std/time/clock/utc/io.cc: Likewise.
 262         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
 263
 264 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
 265
 266         * include/bits/chrono.h (__file_clock::from_sys)
 267         (__file_clock::to_sys, __file_clock::_S_from_sys)
 268         (__file_clock::_S_to_sys): Use common_type for return type.
 269         * testsuite/std/time/clock/file/members.cc: Check round trip
 270         conversion for time with lower precision that seconds.
 271
 272 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
 273
 274         PR libstdc++/113512
 275         * include/std/format (__formatter_fp::format): Fix logic for
 276         alternate forms.
 277         * testsuite/std/format/functions/format.cc: Check buggy cases of
 278         alternate forms with g presentation type.
 279
 280 2024-01-20  Marek Polacek  <polacek@redhat.com>
 281
 282         PR c++/111410
 283         * include/std/ranges: Add #pragma to disable -Wdangling-reference with
 284         std::ranges::views::__adaptor::operator|.
 285
 286 2024-01-19  Jonathan Wakely  <jwakely@redhat.com>
 287
 288         * include/std/format (_Spec::_M_parse_fill_and_align): Do not
 289         use CTAD for _Utf32_view.
 290
 291 2024-01-19  Jonathan Wakely  <jwakely@redhat.com>
 292
 293         PR libstdc++/108822
 294         * include/std/tuple (__glibcxx_no_dangling_refs) [C++17]: Fix
 295         wrong fold-operator.
 296         * testsuite/20_util/tuple/dangling_ref.cc: Check tuples with one
 297         element and three elements. Check allocator-extended
 298         constructors.
 299
 300 2024-01-19  Patrick Palka  <ppalka@redhat.com>
 301
 302         * include/precompiled/stdc++.h [_GLIBCXX_HOSTED]: Include
 303         <print> and <text_encoding> for C++23 and C++26 respectively.
 304
 305 2024-01-18  Patrick Palka  <ppalka@redhat.com>
 306
 307         * include/bits/stl_pair.h [__cplusplus > 202002L]:
 308         Guard P2321R2 changes with __glibcxx_ranges_zip instead.
 309
 310 2024-01-18  Patrick Palka  <ppalka@redhat.com>
 311
 312         * include/std/tuple [__cplusplus > 202002L]: Guard P2321R2
 313         changes with __cpp_lib_ranges_zip instead.
 314
 315 2024-01-18  Patrick Palka  <ppalka@redhat.com>
 316
 317         PR libstdc++/109536
 318         * include/debug/safe_base.h (_Safe_sequence_base::_M_swap):
 319         Remove _GLIBCXX20_CONSTEXPR from non-inline member function.
 320         * include/debug/safe_iterator.h
 321         (_GLIBCXX20_CONSTEXPR_NON_LITERAL_SCOPE_BEGIN): Define.
 322         (_GLIBCXX20_CONSTEXPR_NON_LITERAL_SCOPE_END): Define.
 323         (_Safe_iterator::operator=): Use them around the code path that
 324         defines a variable of type __gnu_cxx::__scoped_lock.
 325         (_Safe_iterator::operator++): Likewise.
 326         (_Safe_iterator::operator--): Likewise.
 327         (_Safe_iterator::operator+=): Likewise.
 328         (_Safe_iterator::operator-=): Likewise.
 329         * testsuite/23_containers/vector/element_access/constexpr.cc
 330         (test_iterators): Test more iterator operations.
 331         * testsuite/23_containers/vector/bool/element_access/constexpr.cc
 332         (test_iterators): Likewise.
 333         * testsuite/std/ranges/adaptors/all.cc (test08) [_GLIBCXX_DEBUG]:
 334         Remove.
 335
 336 2024-01-18  Jonathan Wakely  <jwakely@redhat.com>
 337
 338         * include/bits/unicode.h (__charset_alias_match): Initialize
 339         __var_a and __var_b.
 340
 341 2024-01-18  Jonathan Wakely  <jwakely@redhat.com>
 342
 343         PR libstdc++/113450
 344         * testsuite/std/format/functions/format.cc: Use signed char
 345         instead of int8_t.
 346
 347 2024-01-17  Jonathan Wakely  <jwakely@redhat.com>
 348
 349         PR libstdc++/113318
 350         * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++26 directory.
 351         (GLIBCXX_CHECK_TEXT_ENCODING): Define.
 352         * config.h.in: Regenerate.
 353         * configure: Regenerate.
 354         * configure.ac: Use GLIBCXX_CHECK_TEXT_ENCODING.
 355         * include/Makefile.am: Add new headers.
 356         * include/Makefile.in: Regenerate.
 357         * include/bits/locale_classes.h (locale::encoding): Declare new
 358         member function.
 359         * include/bits/unicode.h (__charset_alias_match): New function.
 360         * include/bits/text_encoding-data.h: New file.
 361         * include/bits/version.def (text_encoding): Define.
 362         * include/bits/version.h: Regenerate.
 363         * include/std/text_encoding: New file.
 364         * src/Makefile.am: Add new subdirectory.
 365         * src/Makefile.in: Regenerate.
 366         * src/c++26/Makefile.am: New file.
 367         * src/c++26/Makefile.in: New file.
 368         * src/c++26/text_encoding.cc: New file.
 369         * src/experimental/Makefile.am: Include c++26 convenience
 370         library.
 371         * src/experimental/Makefile.in: Regenerate.
 372         * python/libstdcxx/v6/printers.py (StdTextEncodingPrinter): New
 373         printer.
 374         * scripts/gen_text_encoding_data.py: New file.
 375         * testsuite/22_locale/locale/encoding.cc: New test.
 376         * testsuite/ext/unicode/charset_alias_match.cc: New test.
 377         * testsuite/std/text_encoding/cons.cc: New test.
 378         * testsuite/std/text_encoding/members.cc: New test.
 379         * testsuite/std/text_encoding/requirements.cc: New test.
 380
 381 2024-01-17  Jonathan Wakely  <jwakely@redhat.com>
 382
 383         * include/bits/unicode.h (_Grapheme_cluster_view): Require view.
 384         Do not use CTAD for _Utf32_view.
 385         (__format_width, __truncate): Do not use CTAD.
 386         (enable_borrowed_range<_Utf_view<T, R>>): Define specialization.
 387         (enable_borrowed_range<_Grapheme_cluster_view<R>>): Likewise.
 388
 389 2024-01-17  Patrick Palka  <ppalka@redhat.com>
 390
 391         * include/std/ranges (views::_CartesianProduct::operator()):
 392         Adjust identity case as per P2540R1.
 393         * testsuite/std/ranges/cartesian_product/1.cc (test01):
 394         Adjust expected result of the identity case.
 395
 396 2024-01-15  Patrick Palka  <ppalka@redhat.com>
 397
 398         * include/std/variant (__detail::__variant::_Variadic_union):
 399         Add bool __trivially_destructible template parameter.
 400         (__detail::__variant::_Variadic_union::~_Variadic_union):
 401         Use __trivially_destructible in constraints instead.
 402         (__detail::__variant::_Variant_storage): Pass
 403         __trivially_destructible value to _Variadic_union.
 404
 405 2024-01-15  Patrick Palka  <ppalka@redhat.com>
 406
 407         * include/bits/stl_iterator.h (const_iterator): Define conversion
 408         operators as per P2836R1.
 409         * include/bits/version.def (ranges_as_const): Update value.
 410         * include/bits/version.h: Regenerate.
 411         * testsuite/24_iterators/const_iterator/1.cc (test04): New test.
 412         * testsuite/std/ranges/adaptors/as_const/1.cc: Adjust expected
 413         value of __cpp_lib_ranges_as_const.
 414         * testsuite/std/ranges/version_c++23.cc: Likewise.
 415
 416 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
 417
 418         PR libstdc++/108822
 419         * include/std/tuple (__assignable, __is_nothrow_assignable):
 420         Move pre-C++20 definitions adjacent to their use.
 421
 422 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
 423
 424         PR testsuite/113366
 425         * include/std/format (basic_format_arg): Use __formattable
 426         variable template instead of __format::__formattable_with
 427         concept.
 428
 429 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
 430
 431         * src/c++20/tzdata.zi: Import new file from 2023d release.
 432         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds)
 433         Update expiry date for leap seconds list.
 434
 435 2024-01-13  Jonathan Wakely  <jwakely@redhat.com>
 436
 437         PR libstdc++/108822
 438         * include/std/tuple (tuple): Add checks for dangling references.
 439         Reimplement constraints and constant expressions using C++20
 440         features.
 441         * include/std/type_traits [C++20]
 442         (__is_implicitly_default_constructible_v): Define.
 443         (__is_implicitly_default_constructible): Use variable template.
 444         * testsuite/20_util/tuple/dangling_ref.cc: New test.
 445
 446 2024-01-13  Patrick Palka  <ppalka@redhat.com>
 447
 448         PR libstdc++/108827
 449         PR libstdc++/111327
 450         * include/bits/version.def (bind_back): Define.
 451         * include/bits/version.h: Regenerate.
 452         * include/std/functional (_Bind_back): Define for C++23.
 453         (bind_back): Likewise.
 454         * testsuite/20_util/function_objects/bind_back/1.cc: New test
 455         (adapted from corresponding bind_front test).
 456         * testsuite/20_util/function_objects/bind_back/111327.cc: Likewise.
 457
 458 2024-01-13  Patrick Palka  <ppalka@redhat.com>
 459
 460         * include/std/functional (_Bind_front): Remove =default special
 461         member function declarations.
 462         (_Bind_front::operator()): Implement using C++23 deducing this
 463         when available.
 464         * testsuite/20_util/function_objects/bind_front/111327.cc:
 465         Adjust testcase to expect better errors in C++23 mode.
 466
 467 2024-01-13  Patrick Palka  <ppalka@redhat.com>
 468
 469         * include/std/ranges (views::__adaptor::operator|): Perform
 470         perfect forwarding of arguments.
 471         (views::__adaptor::_RangeAdaptor::operator()): Pass dummy
 472         first argument to _Partial.
 473         (views::__adaptor::_Partial::_Partial): Likewise.  Add dummy
 474         first parameter.
 475         (views::__adaptor::_Pipe::_Pipe): Perform perfect forwarding
 476         of arguments.
 477         (to): Pass dummy first argument to _Partial.
 478
 479 2024-01-13  Jonathan Wakely  <jwakely@redhat.com>
 480
 481         PR libstdc++/107466
 482         * include/bits/random.tcc (subtract_with_carry_engine::seed):
 483         Implement proposed resolution of LWG 4014.
 484         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
 485         line number.
 486         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/lwg3809.cc:
 487         Check for expected result of 64-bit engine with seed that
 488         doesn't fit in 32-bits.
 489
 490 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
 491
 492         PR libstdc++/113320
 493         * include/std/format (__format::_Runtime_format_string): Add
 494         constructor and disable copy operations.
 495         (basic_format_string(_Runtime_format_string)): Add noexcept and
 496         take parameter by value not rvalue reference.
 497         (runtime_format): Add noexcept.
 498         * testsuite/std/format/runtime_format.cc: Check noexcept. Check
 499         that construction is only possible from prvalues, not xvalues.
 500
 501 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
 502
 503         PR libstdc++/105505
 504         * include/bits/stl_pair.h (pair::pair(U1&&, U2&&)) [C++23]: Add
 505         default template arguments, as per P1951R1.
 506         * testsuite/20_util/pair/cons/default_tmpl_args.cc: New test.
 507
 508 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
 509
 510         * include/std/format (__format::_Arg_store): Fix PR number in
 511         comment. Simplify preprocessor code.
 512
 513 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 514
 515         * doc/xml/manual/evolution.xml: Fix spelling.
 516         * doc/html/manual/api.html: Regenerate.
 517
 518 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 519
 520         * doc/xml/manual/evolution.xml: Document addition of
 521         libstdc++exp.a.
 522         * doc/html/*: Regenerate.
 523
 524 2024-01-11  Marcus Haehnel  <marcus.haehnel@kernkonzept.com>
 525
 526         * libsupc++/eh_unex_handler.cc: Adjust definition type to
 527         declaration.
 528
 529 2024-01-11  Michael Levine  <mlevine55@bloomberg.net>
 530
 531         * include/std/ranges (__glibcxx_want_ranges_iota): Remove
 532         duplicate definition.
 533
 534 2024-01-11  François Dumont  <fdumont@gcc.gnu.org>
 535
 536         PR libstdc++/112477
 537         * src/c++11/debug.cc
 538         (_Safe_iterator_base::_M_attach): Reset _M_version to 0 if attaching to null
 539         sequence.
 540         (_Safe_iterator_base::_M_attach_single): Likewise.
 541         (_Safe_local_iterator_base::_M_attach): Likewise.
 542         (_Safe_local_iterator_base::_M_attach_single): Likewise.
 543         * testsuite/23_containers/map/debug/112477.cc: New test case.
 544
 545 2024-01-11  Patrick Palka  <ppalka@redhat.com>
 546
 547         * include/bits/move.h (__like_t): Define in C++23 mode.
 548         * include/std/ranges (views::__adaptor::Partial::operator()):
 549         Implement using C++23 deducing this when available.
 550         (views::__adaptor::_Pipe::operator()): Likewise.
 551         * testsuite/std/ranges/adaptors/100577.cc: Adjust testcase to
 552         accept new "no match for call" errors issued in C++23 mode.
 553         * testsuite/std/ranges/adaptors/lazy_split_neg.cc: Likewise.
 554
 555 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 556
 557         * python/libstdcxx/v6/printers.py (StdIntegralConstantPrinter):
 558         Add printer for std::integral_constant.
 559         * testsuite/libstdc++-prettyprinters/cxx11.cc: Test it.
 560
 561 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 562
 563         PR libstdc++/113258
 564         * libsupc++/new_opa.cc: Prefer to use posix_memalign if
 565         available.
 566
 567 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
 568
 569         * src/filesystem/ops-common.h (stat_type): Use using.
 570
 571 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
 572
 573         PR libstdc++/113250
 574         * src/c++17/fs_ops.cc (fs::equivalent): Use || instead of &&.
 575         * src/filesystem/ops.cc (fs::equivalent): Likewise.
 576         * testsuite/27_io/filesystem/operations/equivalent.cc: Handle
 577         error codes.
 578         * testsuite/experimental/filesystem/operations/equivalent.cc:
 579         Likewise.
 580
 581 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
 582
 583         * include/std/type_traits (is_compound): Do not use __not_.
 584         (is_compound_v): Use is_fundamental_v instead.
 585
 586 2024-01-11  Patrick Palka  <ppalka@redhat.com>
 587
 588         * include/bits/utility.h (_Nth_type): Use
 589         _GLIBCXX_USE_BUILTIN_TRAIT instead of __has_builtin.
 590
 591 2024-01-09  Jonathan Wakely  <jwakely@redhat.com>
 592
 593         * include/bits/unicode-data.h: Regenerate.
 594         * include/bits/unicode.h (_Utf_iterator::operator++()): Fix off
 595         by one error.
 596         (__incb_property): Add missing check for values before the
 597         first edge.
 598         (__is_extended_pictographic): Invert return values to fix
 599         copy&pasted logic.
 600         (_Grapheme_cluster_view::_Iterator): Remove second iterator
 601         member and find end of cluster lazily.
 602         * testsuite/ext/unicode/grapheme_view.cc: New test.
 603         * testsuite/ext/unicode/properties.cc: New test.
 604         * testsuite/ext/unicode/view.cc: New test.
 605
 606 2024-01-09  Andreas Schwab  <schwab@linux-m68k.org>
 607
 608         * scripts/extract_symvers.in: Require final colon to only match
 609         .dsynsym in the header of the dynamic symtab.
 610
 611 2024-01-09  Jonathan Wakely  <jwakely@redhat.com>
 612
 613         * include/bits/chrono_io.h (__formatter_chrono::_M_F): Simplify
 614         handling of string returned from std::format.
 615         (__formatter_chrono::_M_R_T): Likewise.
 616
 617 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 618
 619         * include/bits/unicode.h (__null_sentinel): Remove.
 620         * testsuite/17_intro/names.cc: Add __null_sentinel.
 621
 622 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 623
 624         * include/std/format (__format::_Runtime_format_string): Define
 625         new class template.
 626         (basic_format_string): Add non-consteval constructor for runtime
 627         format strings.
 628         (runtime_format): Define new function for C++26.
 629         * testsuite/std/format/runtime_format.cc: New test.
 630
 631 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 632
 633         * include/bits/chrono_io.h (__formatter_chrono): Always use
 634         lvalue arguments to make_format_args.
 635         * include/std/format (make_format_args): Change parameter pack
 636         from forwarding references to lvalue references. Remove use of
 637         remove_reference_t which is now unnecessary.
 638         (format_to, formatted_size): Remove incorrect forwarding of
 639         arguments.
 640         * include/std/ostream (print): Remove forwarding of arguments.
 641         * include/std/print (print): Likewise.
 642         * testsuite/20_util/duration/io.cc: Use lvalues as arguments to
 643         make_format_args.
 644         * testsuite/std/format/arguments/args.cc: Likewise.
 645         * testsuite/std/format/arguments/lwg3810.cc: Likewise.
 646         * testsuite/std/format/functions/format.cc: Likewise.
 647         * testsuite/std/format/functions/vformat_to.cc: Likewise.
 648         * testsuite/std/format/string.cc: Likewise.
 649         * testsuite/std/time/day/io.cc: Likewise.
 650         * testsuite/std/time/month/io.cc: Likewise.
 651         * testsuite/std/time/weekday/io.cc: Likewise.
 652         * testsuite/std/time/year/io.cc: Likewise.
 653         * testsuite/std/time/year_month_day/io.cc: Likewise.
 654         * testsuite/std/format/arguments/args_neg.cc: New test.
 655
 656 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 657
 658         * include/Makefile.am: Add new headers.
 659         * include/Makefile.in: Regenerate.
 660         * include/bits/unicode.h: New file.
 661         * include/bits/unicode-data.h: New file.
 662         * include/std/format: Include <bits/unicode.h>.
 663         (__literal_encoding_is_utf8): Move to <bits/unicode.h>.
 664         (_Spec::_M_fill): Change type to char32_t.
 665         (_Spec::_M_parse_fill_and_align): Read a Unicode scalar value
 666         instead of a single character.
 667         (__write_padded): Change __fill_char parameter to char32_t and
 668         encode it into the output.
 669         (__formatter_str::format): Use new __unicode::__field_width and
 670         __unicode::__truncate functions.
 671         * include/std/ostream: Adjust namespace qualification for
 672         __literal_encoding_is_utf8.
 673         * include/std/print: Likewise.
 674         * src/c++23/print.cc: Add [[unlikely]] attribute to error path.
 675         * testsuite/ext/unicode/view.cc: New test.
 676         * testsuite/std/format/functions/format.cc: Add missing examples
 677         from the standard demonstrating alignment with non-ASCII
 678         characters. Add examples checking correct handling of extended
 679         grapheme clusters.
 680
 681 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 682
 683         * include/bits/version.def (format_uchar): Define.
 684         * include/bits/version.h: Regenerate.
 685         * include/std/format (formatter<C, C>::format): Check for
 686         _Pres_c and call _M_format_character directly. Cast C to its
 687         unsigned equivalent for formatting as an integer.
 688         (formatter<char, wchar_t>::format): Likewise.
 689         (basic_format_arg(T&)): Store char arguments as unsigned char
 690         for formatting to a wide string.
 691         * testsuite/std/format/functions/format.cc: Adjust test. Check
 692         formatting of
 693
 694 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
 695
 696         PR libstdc++/112997
 697         * libsupc++/unwind-cxx.h (__cxa_call_terminate): Change first
 698         parameter to void*.
 699
 700 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
 701
 702         * testsuite/20_util/variant/87619.cc: Remove dg-timeout-factor.
 703
 704 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
 705
 706         * include/std/type_traits (is_trivially_destructible_v): Use
 707         built-in directly when concepts are supported.
 708         * testsuite/20_util/is_trivially_destructible/value_v.cc: New
 709         test.
 710
 711 2024-01-06  Gwenole Beauchesne  <gb.devel@gmail.com>
 712
 713         * testsuite/tr1/8_c_compatibility/cinttypes/functions.cc: Use
 714         nonnull arguments to strtoimax() and wcstoimax() functions.
 715
 716 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 717
 718         * src/c++17/fs_path.cc (path::_List::reserve): Limit maximum
 719         size and check for overflows in arithmetic.
 720         (path::operator/=(const path&)): Remove redundant exponential
 721         growth calculation.
 722
 723 2024-01-05  Martin Küttler  <martin.kuettler@kernkonzept.com>
 724
 725         * src/c++17/fs_path.cc (path::_List::reserve): Avoid
 726         floating-point arithmetic.
 727
 728 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 729
 730         PR libstdc++/113241
 731         * include/std/type_traits (is_convertible_v): Guard use of
 732         built-in with preprocessor check.
 733
 734 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 735
 736         PR libstdc++/113200
 737         * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Use
 738         __builtin_constant_p to check for unrelated pointers that cannot
 739         be compared during constant evaluation.
 740         * testsuite/21_strings/char_traits/requirements/113200.cc: New
 741         test.
 742
 743 2024-01-05  Cassio Neri  <cassio.neri@gmail.com>
 744
 745         * include/std/chrono: Fix + and - for months and weekdays.
 746         * testsuite/std/time/month/1.cc: Add constexpr tests against overflow.
 747         * testsuite/std/time/month/2.cc: New test for extreme values.
 748         * testsuite/std/time/weekday/1.cc: Add constexpr tests against overflow.
 749         * testsuite/std/time/weekday/2.cc: New test for extreme values.
 750
 751 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 752
 753         PR libstdc++/113099
 754         * include/bits/locale_classes.tcc (__try_use_facet): Use
 755         if-constexpr for C++11 and up.
 756
 757 2024-01-05  Ken Matsui  <kmatsui@gcc.gnu.org>
 758
 759         * include/std/type_traits: Use _GLIBCXX_USE_BUILTIN_TRAIT.
 760
 761 2024-01-04  Arsen Arsenović  <arsen@aarsen.me>
 762
 763         * include/std/generator (_Subyield_state::_M_jump_in): Fix typo
 764         reported by Will Hawkins <hawkinsw@obs.cr>.
 765
 766 2024-01-04  Arsen Arsenović  <arsen@aarsen.me>
 767
 768         * include/std/generator (_Stateless_alloc): Rename typename _A
 769         to _All.
 770
 771 2024-01-03  Patrick Palka  <ppalka@redhat.com>
 772
 773         PR testsuite/113175
 774         * testsuite/std/ranges/iota/max_size_type.cc (test02): Reduce
 775         'limit' to 100 from 1000 and adjust 'log2_limit' accordingly.
 776         (test03): Likewise.
 777
 778 \f
 779 Copyright (C) 2024 Free Software Foundation, Inc.
 780
 781 Copying and distribution of this file, with or without modification,
 782 are permitted in any medium without royalty provided the copyright
 783 notice and this notice are preserved.