libstdc++-v3/ChangeLog

   1 2019-02-11  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         PR libstdc++/89023
   4         * testsuite/17_intro/headers/c++2011/parallel_mode.cc: New test.
   5         * testsuite/17_intro/headers/c++2014/parallel_mode.cc: New test.
   6         * testsuite/17_intro/headers/c++2017/parallel_mode.cc: New test.
   7         * testsuite/28_regex/headers/regex/parallel_mode.cc: Remove.
   8
   9 2019-02-09  Jonathan Wakely  <jwakely@redhat.com>
  10
  11         PR libstdc++/71044
  12         * include/bits/fs_path.h (path::has_root_name)
  13         (path::has_root_directory, path::has_root_path)
  14         (path::has_relative_path, path::has_parent_path)
  15         (path::has_filename, path::has_stem, path::has_extension)
  16         (path::is_absolute, path::is_relative, path::_M_find_extension): Add
  17         noexcept.
  18         * src/c++17/fs_path.cc (path::has_root_name)
  19         (path::has_root_directory, path::has_root_path)
  20         (path::has_relative_path, path::has_parent_path)
  21         (path::has_filename, path::_M_find_extension): Add noexcept.
  22
  23 2019-02-06  Jonathan Wakely  <jwakely@redhat.com>
  24
  25         PR libstdc++/89102 (partial)
  26         * include/std/type_traits (common_type<>): Define.
  27         (common_type<T>): Derive from common_type<T, T>.
  28         * testsuite/20_util/common_type/requirements/explicit_instantiation.cc:
  29         Test zero-length template argument list.
  30         * testsuite/20_util/common_type/requirements/sfinae_friendly_1.cc:
  31         Test additional single argument cases.
  32         * testsuite/20_util/common_type/requirements/sfinae_friendly_2.cc:
  33         Adjust expected error.
  34
  35 2019-02-05  Jonathan Wakely  <jwakely@redhat.com>
  36
  37         PR libstdc++/89128
  38         * include/bits/stl_queue.h (queue, priority_queue): Add deduction
  39         guides.
  40         * include/bits/stl_stack.h (stack): Likewise.
  41         * testsuite/23_containers/priority_queue/deduction.cc: New test.
  42         * testsuite/23_containers/queue/deduction.cc: New test.
  43         * testsuite/23_containers/stack/deduction.cc: New test.
  44
  45         PR libstdc++/89194
  46         * include/std/type_traits (__is_convertible_helper)
  47         (__is_convertible_helper<_From, _To, false>): Revert changes to
  48         support is_nothrow_convertible.
  49         (__is_nt_convertible_helper): New helper.
  50         (is_nothrow_convertible): Use __is_nt_convertible_helper.
  51
  52         * testsuite/23_containers/vector/modifiers/push_back/49836.cc: Restore
  53         use of CopyConsOnlyType, but also test DelAnyAssign for completeness.
  54
  55         PR libstdc++/89130
  56         * include/bits/alloc_traits.h (__is_copy_insertable_impl): Rename to
  57         __is_alloc_insertable_impl. Replace single type member with two
  58         members, one for each of copy and move insertable.
  59         (__is_move_insertable): New trait for internal use.
  60         * include/bits/stl_vector.h (vector::_S_nothrow_relocate(true_type))
  61         (vector::_S_nothrow_relocate(true_type)): New functions to
  62         conditionally check if __relocate_a can throw.
  63         (vector::_S_use_relocate()): Dispatch to _S_nothrow_relocate based
  64         on __is_move_insertable.
  65         (vector::_S_do_relocate): New overloaded functions to conditionally
  66         call __relocate_a.
  67         (vector::_S_relocate): New function that dispatches to _S_do_relocate
  68         based on _S_use_relocate.
  69         * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
  70         (vector::_M_default_append): Call _S_relocate instead of __relocate_a.
  71         * testsuite/23_containers/vector/modifiers/push_back/89130.cc: New.
  72
  73         PR libstdc++/89090
  74         * include/bits/stl_uninitialized.h (__relocate_a_1): Make unused
  75         parameter unnamed. Add message to static assertion.
  76         * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
  77         (vector::_M_default_append): Use _GLIBCXX17_CONSTEXPR for if constexpr
  78         in C++11 code.
  79
  80 2019-02-05  Marc Glisse  <marc.glisse@inria.fr>
  81
  82         PR libstdc++/87106
  83         * include/bits/stl_uninitialized.h (__is_trivially_relocatable):
  84         Rename...
  85         (__is_bitwise_relocatable): ... to this.
  86         (__relocate_a_1): Adapt.
  87         * include/bits/stl_deque.h (__is_trivially_relocatable): Rename...
  88         (__is_bitwise_relocatable): ... to this.
  89
  90 2019-01-30  Jonathan Wakely  <jwakely@redhat.com>
  91
  92         PR libstdc++/89117
  93         * src/c++17/fs_path.cc (path::replace_extension): Erase extension from
  94         final component as well as from _M_pathname. Append the dot using
  95         operator+= instead of only to _M_pathname.
  96         (path::_M_find_extension): Reformat slightly.
  97         * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
  98         Add more test cases.
  99
 100 2019-01-30  Ulrich Drepper  <drepper@redhat.com>
 101
 102         * doc/xml/manual/status_cxx2020.xml: Update P0600 entry.
 103
 104 2019-01-29  Jonathan Wakely  <jwakely@redhat.com>
 105
 106         * testsuite/26_numerics/headers/complex/synopsis.cc: Remove incorrect
 107         constexpr specifiers from arg and proj.
 108
 109         * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add missing exports for
 110         __shared_ptr instantiations used by gcc4-compatible ABI.
 111
 112         * include/experimental/forward_list (experimental::erase): Qualify
 113         call to erase_if.
 114         * include/experimental/list (experimental::erase): Likewise.
 115         * include/std/forward_list (std::erase): Likewise.
 116         * include/std/list (std::erase): Likewise.
 117
 118         * testsuite/20_util/reference_wrapper/result_type.cc: Disable for
 119         C++2a.
 120         * testsuite/20_util/reference_wrapper/typedefs-2.cc: Likewise.
 121         * testsuite/20_util/reference_wrapper/typedefs-3.cc: Likewise.
 122         * testsuite/20_util/reference_wrapper/typedefs.cc: Likewise.
 123         * testsuite/30_threads/async/54297.cc: Suppress nodiscard warning.
 124         * testsuite/ext/array_allocator/26875.cc: Likewise.
 125         * testsuite/ext/pool_allocator/allocate_chunk.cc: Likewise.
 126         * testsuite/util/replacement_memory_operators.h: Likewise.
 127         * testsuite/util/testsuite_allocator.h: Likewise.
 128
 129         * include/std/memory_resource (__pool_resource::_M_unpooled): Use
 130         normal mode vector, even for debug mode.
 131         * include/std/vector [_GLIBCXX_DEBUG] (_GLIBCXX_STD_C::pmr::vector):
 132         Define alias template for normal mode vector.
 133
 134 2019-01-28  Jonathan Wakely  <jwakely@redhat.com>
 135
 136         PR libstdc++/68737
 137         * config/locale/generic/c_locale.h (__convert_from_v)
 138         [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
 139         * config/os/hpux/os_defines.h: Define _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
 140         * include/bits/locale_facets.tcc (num_put::_M_insert_float)
 141         [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
 142
 143 2019-01-24  Jonathan Wakely  <jwakely@redhat.com>
 144
 145         PR libstdc++/88840
 146         * include/bits/stl_vector.h (vector::__use_relocate): Replace static
 147         data member with static member function _S_use_relocate().
 148         * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
 149         (vector::_M_default_append): Use _S_use_relocate() instead of
 150         __use_relocate.
 151
 152         * testsuite/27_io/filesystem/path/compare/strings.cc: Only compare
 153         sign of results.
 154
 155 2019-01-22  Jonathan Wakely  <jwakely@redhat.com>
 156
 157         PR libstdc++/88740
 158         * testsuite/util/testsuite_hooks.h [stderr] (VERIFY): Use fprintf to
 159         write to stderr instead of using printf.
 160
 161 2019-01-21  Jakub Jelinek  <jakub@redhat.com>
 162
 163         PR libstdc++/86590
 164         * include/bits/char_traits.h (__constant_string_p,
 165         __constant_char_array_p): Use __builtin_is_constant_evaluated if
 166         available.
 167
 168 2019-01-20  Ulrich Drepper  <drepper@redhat.com>
 169
 170         Implement C++20 P0600r1.
 171         * include/backward/hash_map: Add nodiscard attribute to empty.
 172         * include/backward/hash_set: Likewise.
 173         * backward/hashtable.h: Likewise.
 174         * include/bits/basic_string.h: Likewise.
 175         * include/bits/forward_list.h: Likewise.
 176         * include/bits/hashtable.h: Likewise.
 177         * include/bits/regex.h: Likewise.
 178         * include/bits/stl_deque.h: Likewise.
 179         * include/bits/stl_list.h: Likewise.
 180         * include/bits/stl_map.h: Likewise.
 181         * include/bits/stl_multimap.h: Likewise.
 182         * include/bits/stl_multiset.h: Likewise.
 183         * include/bits/stl_queue.h: Likewise.
 184         * include/bits/stl_set.h: Likewise.
 185         * include/bits/stl_stack.h: Likewise.
 186         * include/bits/stl_tree.h: Likewise.
 187         * include/bits/stl_vector.h: Likewise.
 188         * include/bits/unordered_map.h: Likewise.
 189         * include/bits/unordered_set.h: Likewise.
 190         * include/debug/array: Likewise.
 191         * include/experimental/any: Likewise.
 192         * include/experimental/bits/fs_path.h: Likewise.
 193         * include/experimental/internet: Likewise.
 194         * include/experimental/string_view: Likewise.
 195         * include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp:
 196         Likewise.
 197         * include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp:
 198         Likewise.
 199         * include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp:
 200         Likewise.
 201         * include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp:
 202         Likewise.
 203         * include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp:
 204         Likewise.
 205         * include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp:
 206         Likewise.
 207         * include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp:
 208         Likewise.
 209         * include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp:
 210         Likewise.
 211         * include/ext/pb_ds/detail/left_child_next_sibling_heap_/
 212         info_fn_imps.hpp: Likewise.
 213         * include/ext/pb_ds/detail/left_child_next_sibling_heap_/
 214         left_child_next_sibling_heap_.hpp: Likewise.
 215         * include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp:
 216         Likewise.
 217         * include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp:
 218         Likewise.
 219         * include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp:
 220         Likewise.
 221         * include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hp:
 222         Likewise.
 223         * include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp:
 224         Likewise.
 225         * include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp:
 226         Likewise.
 227         * include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp:
 228         Likewise.
 229         * include/ext/pb_ds/detail/tree_trace_base.hpp: Likewise.
 230         * include/ext/pb_ds/trie_policy.hpp: Likewise.
 231         * include/ext/rope: Likewise.
 232         * include/ext/slist: Likewise.
 233         * include/ext/vstring.h: Likewise.
 234         * include/profile/array: Likewise.
 235         * include/std/array: Likewise.
 236         * include/tr1/array: Likewise.
 237         * include/tr1/hashtable.h: Likewise.
 238         * include/tr1/regex: Likewise.
 239         * include/tr2/dynamic_bitset: Likewise.
 240         * include/bits/alloc_traits.h: Add nodiscard attribute to
 241         allocate.
 242         * include/experimental/memory_resource: Likewise.
 243         * include/ext/alloc_traits.h: Likewise.
 244         * include/ext/array_allocator.h: Likewise.
 245         * include/ext/bitmap_allocator.h: Likewise.
 246         * include/ext/debug_allocator.h: Likewise.
 247         * include/ext/extptr_allocator.h: Likewise.
 248         * include/ext/mt_allocator.h: Likewise.
 249         * include/ext/new_allocator.h: Likewise.
 250         * include/ext/pool_allocator.h: Likewise.
 251         * include/ext/throw_allocator.h: Likewise.
 252         * include/std/scoped_allocator: Likewise.
 253         * libsupc++/eh_alloc.cc: Likewise.
 254         * include/std/future: Add nodiscard attribute to async.
 255         * libsupc++/new: Add nodiscard attribute to new.
 256
 257 2019-01-18  Jonathan Wakely  <jwakely@redhat.com>
 258
 259         PR libstdc++/87514
 260         PR libstdc++/87520
 261         PR libstdc++/88782
 262         * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export new symbol.
 263         * include/bits/shared_ptr.h
 264         (shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...))
 265         (allocate_shared): Change to use new tag type.
 266         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_eq):
 267         Declare new member function.
 268         (_Sp_alloc_shared_tag): Define new type.
 269         (_Sp_counted_ptr_inplace): Declare __shared_count<_Lp> as a friend.
 270         (_Sp_counted_ptr_inplace::_M_get_deleter) [!__cpp_rtti]: Use
 271         _Sp_make_shared_tag::_S_eq to check type_info.
 272         (__shared_count(Ptr, Deleter),__shared_count(Ptr, Deleter, Alloc)):
 273         Constrain to prevent being called with _Sp_alloc_shared_tag.
 274         (__shared_count(_Sp_make_shared_tag, const _Alloc&, Args&&...)):
 275         Replace constructor with ...
 276         (__shared_count(Tp*&, _Sp_alloc_shared_tag<_Alloc>, Args&&...)): Use
 277         reference parameter so address of the new object can be returned to
 278         the caller. Obtain the allocator from the tag type.
 279         (__shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)): Replace
 280         constructor with ...
 281         (__shared_ptr(_Sp_alloc_shared_tag<Alloc>, Args&&...)): Pass _M_ptr
 282         to the __shared_count constructor.
 283         (__allocate_shared): Change to use new tag type.
 284         * src/c++11/shared_ptr.cc (_Sp_make_shared_tag::_S_eq): Define.
 285
 286 2019-01-17  Jonathan Wakely  <jwakely@redhat.com>
 287
 288         * src/c++17/fs_ops.cc
 289         (equivalent(const path&, const path&, error_code&))
 290         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use GetFileInformationByHandle to
 291         compare files instead of relying on incomplete info returned by stat.
 292
 293         PR libstdc++/88884
 294         * src/c++17/fs_ops.cc (absolute(const path&, error_code&)): Do nothing
 295         if the path is already absolute.
 296         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize root-directory.
 297         [!_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Pass error_code to current_path.
 298
 299         PR libstdc++/88881
 300         * src/c++17/fs_ops.cc (canonical(const path&, error_code&))
 301         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize path, to match behaviour
 302         of filesystem::exists.
 303         (create_directories(const path&, error_code&)): Add assertions.
 304         (status(const path&, error_code&)) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]:
 305         Add workaround for bug in _wstat for paths with trailing slash.
 306         * testsuite/27_io/filesystem/operations/create_directories.cc: Adjust
 307         for expected behaviour on mingw.
 308         * testsuite/experimental/filesystem/operations/create_directories.cc:
 309         Likewise.
 310         * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Use
 311         "TMP" instead of "TMPDIR" and clean environment before each test. Do
 312         not test permissions on mingw targets.
 313
 314 2019-01-16  Jonathan Wakely  <jwakely@redhat.com>
 315
 316         * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add exports for fstream
 317         constructors and open members taking wide strings. Fix patterns for
 318         filesystem::path members to match wstring_view parameters. Add
 319         exports for shared_ptr members used by directory iterators.
 320         * src/c++17/fs_ops.cc (remove(const path&, error_code&)): Clear the
 321         error code parameter if the file doesn't exist.
 322         * src/filesystem/ops.cc (remove(const path&, error_code&)):
 323         Likewise.
 324         * testsuite/27_io/filesystem/operations/canonical.cc: Fix expected
 325         values for mingw targets, where "/" is not an absolute path. Do not
 326         test symlinks on mingw targets.
 327         * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
 328         * testsuite/27_io/filesystem/operations/copy.cc: Do not test symlinks
 329         on mingw targets.
 330         * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
 331         * testsuite/27_io/filesystem/operations/create_directories.cc: Check
 332         that each component of the path is created.
 333         * testsuite/experimental/filesystem/operations/create_directories.cc:
 334         Likewise.
 335         * testsuite/27_io/filesystem/operations/exists.cc: Do not test
 336         permissions on mingw targets.
 337         * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
 338         * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
 339         * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
 340         * testsuite/27_io/filesystem/operations/permissions.cc: XFAIL for
 341         mingw targets.
 342         * testsuite/experimental/filesystem/operations/permissions.cc:
 343         Likewise.
 344         * testsuite/27_io/filesystem/operations/remove.cc: Do not test
 345         symlinks or permissions on mingw targets.
 346         * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
 347         * testsuite/27_io/filesystem/operations/remove_all.cc: Do not test
 348         symlinks on mingw targets.
 349         * testsuite/experimental/filesystem/operations/remove_all.cc:
 350         Likewise.
 351         * testsuite/27_io/filesystem/operations/status.cc: Do not test
 352         permissions on mingw targets.
 353         * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Do not
 354         test symlinks on mingw targets.
 355         * testsuite/experimental/filesystem/operations/space.cc: Fix test
 356         for mingw targets.
 357
 358 2019-02-14  Ulrich Drepper  <drepper@redhat.com>
 359
 360         PR libstdc++/88738
 361         Warn about unused comparisons of shared_ptr/unique_ptr
 362         * include/bits/c++config [_GLIBCXX_NODISCARD]: Define.
 363         * include/bits/shared_ptr.h: Use it for operator ==, !=,
 364         <, <=, >, >= for shared_ptr.
 365         * include/bits/unique_ptr.h: Likewise for unique_ptr.
 366
 367 2019-01-15  Jonathan Wakely  <jwakely@redhat.com>
 368
 369         * include/bits/shared_ptr_base.h (__cpp_lib_shared_ptr_arrays): Define
 370         as 201611L, because P0497R0 changes are supported.
 371         * include/std/version (__cpp_lib_shared_ptr_arrays): Likewise.
 372
 373         * include/bits/erase_if.h [__cplusplus > 201703L]
 374         (__cpp_lib_erase_if): Only define for C++2a.
 375         * include/std/iterator [__cplusplus >= 201402L && !_GLIBCXX_DEBUG]
 376         (__cpp_lib_null_iterators): Define.
 377         * include/std/version [__cplusplus >= 201402L && !_GLIBCXX_DEBUG]
 378         (__cpp_lib_null_iterators): Define.
 379         [__cpp_impl_destroying_delete] (__cpp_lib_destroying_delete): Define.
 380
 381         * doc/xml/manual/status_cxx2017.xml: Document P0032R3 and P0307R2
 382         status.
 383         * include/bits/stl_uninitialized.h (__cpp_lib_raw_memory_algorithms):
 384         Define.
 385         * include/std/any (__cpp_lib_any): Define as 201606L, because P0032R3
 386         changes are supported.
 387         * include/std/optional (__cpp_lib_optional): Likewise.
 388         * include/std/variant (__cpp_lib_variant): Likewise.
 389         * include/std/version [!__STRICT_ANSI__]
 390         (__cpp_lib_uncaught_exceptions): Define as long integer.
 391         [__cplusplus >= 201703L] (__cpp_lib_any)
 392         (__cpp_lib_raw_memory_algorithms, __cpp_lib_uncaught_exceptions)
 393         (__cpp_lib_variant): Define for C++17.
 394         [__cplusplus >= 201703L] (__cpp_lib_optional): Update value and define
 395         as long integer.
 396         * libsupc++/exception (__cpp_lib_uncaught_exceptions): Define as long
 397         integer.
 398
 399         * doc/xml/manual/status_cxx2020.xml: Update P1123R0 status.
 400
 401 2019-01-12  Jonathan Wakely  <jwakely@redhat.com>
 402
 403         PR libstdc++/88811
 404         PR libstdc++/83306
 405         * src/filesystem/path.cc: Fix typo. If first path is empty, show []
 406         before second path.
 407         * testsuite/experimental/filesystem/filesystem_error/cons.cc: New
 408         test.
 409
 410 2019-01-11  Jonathan Wakely  <jwakely@redhat.com>
 411
 412         * doc/xml/manual/intro.xml: Include new section.
 413         * doc/xml/manual/status_cxx2017.xml: Document more
 414         implementation-defined properties of the library.
 415         * doc/xml/manual/status_cxx2020.xml: Document C++2a status.
 416         * doc/html/*: Regenerate.
 417
 418         * include/bits/refwrap.h [__cplusplus > 201703L]
 419         (_Refwrap_base_arg1, _Refwrap_base_arg2, _Reference_wrapper_base)
 420         (_Reference_wrapper_base_memfun): Do not define for C++2a.
 421         (reference_wrapper): Do not derive from _Reference_wrapper_base_memfun
 422         for C++2a.
 423         (reference_wrapper::operator()): Add static assertion.
 424         * testsuite/20_util/reference_wrapper/incomplete.cc: New test.
 425
 426         * include/std/chrono (duration_values::zero(), duration_values::min())
 427         (duration_values::max()): Add noexcept.
 428         (duration::zero(), duration::min(), duration::max()): Likewise.
 429         (time_point::zero(), time_point::min(), time_point::max()): Likewise.
 430         * testsuite/20_util/duration/requirements/noexcept.cc: New test.
 431         * testsuite/20_util/time_point/requirements/noexcept.cc: New test.
 432
 433         * include/std/version (__cpp_lib_erase_if): Move to C++20 group.
 434
 435 2019-01-11  Jakub Jelinek  <jakub@redhat.com>
 436
 437         * include/std/type_traits (__cpp_lib_is_constant_evaluated): Define.
 438         * include/std/version (__cpp_lib_is_constant_evaluated): Define.
 439
 440 2019-01-11  Jonathan Wakely  <jwakely@redhat.com>
 441
 442         PR libstdc++/88802
 443         * include/bits/functional_hash.h (hash<nullptr_t>): Define
 444         specialization for C++17 (P0513R0, LWG 2817).
 445         * testsuite/20_util/hash/nullptr.cc: New test.
 446
 447         PR libstdc++/88125
 448         * config/abi/pre/gnu.ver (GLIBCXX_3.4.6): Remove unused duplicate
 449         pattern for std::basic_stringbuf::str().
 450
 451         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Correct recent changes to
 452         basic_ostream::operator<< patterns.
 453
 454 2019-01-10  Jonathan Wakely  <jwakely@redhat.com>
 455
 456         * testsuite/27_io/filesystem/operations/last_write_time.cc: Fix
 457         test failures on targets with 32-bit time_t.
 458
 459         * include/bits/erase_if.h: Define __cpp_lib_erase_if.
 460         * include/std/deque: Likewise.
 461         * include/std/forward_list: Likewise.
 462         * include/std/list: Likewise.
 463         * include/std/string: Likewise.
 464         * include/std/vector: Likewise.
 465         * include/std/version: Likewise.
 466         * testsuite/21_strings/basic_string/erasure.cc: Test macro.
 467         * testsuite/23_containers/deque/erasure.cc: Likewise.
 468         * testsuite/23_containers/forward_list/erasure.cc: Likewise.
 469         * testsuite/23_containers/list/erasure.cc: Likewise.
 470         * testsuite/23_containers/map/erasure.cc: Likewise.
 471         * testsuite/23_containers/set/erasure.cc: Likewise.
 472         * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
 473         * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
 474         * testsuite/23_containers/vector/erasure.cc: Likewise.
 475
 476         * include/experimental/internet [AI_NUMERICSERV]
 477         (resolver_base::numeric_service): Define conditionally.
 478         * testsuite/experimental/net/internet/resolver/base.cc: Test it
 479         conditionally.
 480         * testsuite/experimental/net/internet/resolver/ops/lookup.cc:
 481         Likewise.
 482
 483 2019-01-10  Ville Voutilainen  <ville.voutilainen@gmail.com>
 484             Jonathan Wakely  <jwakely@redhat.com>
 485
 486         Implement LWG 2221
 487         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten patterns.
 488         (GLIBCXX_3.4.26): Add new exports.
 489         * include/Makefile.am: Add ostream-inst.cc. Move string-inst.cc to
 490         correct list of sources.
 491         * include/Makefile.in: Regenerate.
 492         * include/std/ostream (operator<<(nullptr_t)): New member function.
 493         * src/c++17/ostream-inst.cc: New file.
 494         * testsuite/27_io/basic_ostream/inserters_other/char/lwg2221.cc: New
 495         test.
 496
 497 2019-01-10  Jonathan Wakely  <jwakely@redhat.com>
 498
 499         * testsuite/util/testsuite_fs.h (nonexistent_path): Include name
 500         of the source file containing the caller.
 501         * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Remove
 502         directories created by test.
 503         * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
 504         Likewise.
 505         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
 506         Likewise.
 507         * testsuite/experimental/filesystem/iterators/
 508         recursive_directory_iterator.cc: Likewise.
 509
 510 2019-01-10  Jakub Jelinek  <jakub@redhat.com>
 511
 512         PR tree-optimization/88775
 513         * include/bits/stl_function.h (greater<_Tp*>::operator(),
 514         less<_Tp*>::operator(), greater_equal<_Tp*>::operator(),
 515         less_equal<_Tp*>::operator()): Use __builtin_is_constant_evaluated
 516         instead of __builtin_constant_p if available.  Don't bother with
 517         the pointer comparison in C++11 and earlier.
 518
 519 2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>
 520
 521         PR other/16615
 522
 523         * include/ext/bitmap_allocator.h: Mechanically replace "can not"
 524         with "cannot".
 525
 526 2019-01-09  Jonathan Wakely  <jwakely@redhat.com>
 527
 528         * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix expected output
 529         for filesystem::path. Give variables more distinctive names.
 530
 531         * include/std/optional (_Optional_payload_base::_M_copy_assign): New
 532         member function to perform non-trivial assignment.
 533         (_Optional_payload_base::_M_move_assign): Likewise.
 534         (_Optional_payload<T, true, false, true>::operator=)
 535         (_Optional_payload<T, true, true, false>::operator=)
 536         (_Optional_payload<T, true, false, false>::operator=): Call
 537         _M_copy_assign and/or _M_move_assign to do non-trivial assignments.
 538
 539         PR libstdc++/88204
 540         * testsuite/26_numerics/complex/operators/more_constexpr.cc: Do not
 541         test std::complex<long double> if long double format is IBM128.
 542         * testsuite/26_numerics/complex/requirements/more_constexpr.cc:
 543         Likewise.
 544
 545 2019-01-08  Jonathan Wakely  <jwakely@redhat.com>
 546
 547         * testsuite/libstdc++-prettyprinters/compat.cc: Test printer support
 548         for old std::unique_ptr layout.
 549         * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix std::variant test
 550         to become valueless. Add filesystem::path tests.
 551
 552         PR libstdc++/87855
 553         * include/std/optional (_Optional_payload_base): New class template
 554         for common code hoisted from _Optional_payload specializations. Use
 555         a template for the union, to allow a partial specialization for
 556         types with non-trivial destructors. Add constructors for in-place
 557         initialization to the union.
 558         (_Optional_payload(bool, const _Optional_payload&)): Use _M_construct
 559         to perform non-trivial copy construction, instead of relying on
 560         non-standard copy elision in a delegating constructor.
 561         (_Optional_payload(bool, _Optional_payload&&)): Likewise for
 562         non-trivial move construction.
 563         (_Optional_payload): Derive from _Optional_payload_base and use it
 564         for everything except the non-trivial assignment operators, which are
 565         defined as needed.
 566         (_Optional_payload<false, C, M>): Derive from the specialization
 567         _Optional_payload<true, false, false> and add a destructor.
 568         (_Optional_base_impl::_M_destruct, _Optional_base_impl::_M_reset):
 569         Forward to corresponding members of _Optional_payload.
 570         (_Optional_base_impl::_M_is_engaged, _Optional_base_impl::_M_get):
 571         Hoist common members from _Optional_base.
 572         (_Optional_base): Make all members and base class public.
 573         (_Optional_base::_M_get, _Optional_base::_M_is_engaged): Move to
 574         _Optional_base_impl.
 575         * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Add
 576         support for new std::optional layout.
 577         * testsuite/libstdc++-prettyprinters/compat.cc: New test.
 578
 579         PR libstdc++/88066
 580         * include/bits/locale_conv.h: Use <> for includes not "".
 581         * include/ext/random: Likewise.
 582         * include/ext/vstring.h: Likewise.
 583
 584 2019-01-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 585
 586         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten existing patterns.
 587         (GLIBCXX_3.4.21): Likewise.
 588
 589 2019-01-08  Jonathan Wakely  <jwakely@redhat.com>
 590
 591         PR libstdc++/88749
 592         * src/filesystem/ops.cc (last_write_time): Fix preprocessor condition
 593         to match the one that controls whether utimbuf and utime are declared.
 594
 595 2019-01-07  Jonathan Wakely  <jwakely@redhat.com>
 596
 597         PR libstdc++/87787
 598         * include/bits/char_traits.h (char_traits::move): Do not pass null
 599         pointers to memmove.
 600         * include/bits/locale_facets.h
 601         (ctype<char>::widen(const char*, const char*, char*)): Do not
 602         pass null pointers to memcpy.
 603         (ctype<char>::narrow(const char*, const char*, char, char*)):
 604         Likewise.
 605         (ctype<char>::do_widen(const char*, const char*, char*)):
 606         Likewise.
 607         (ctype<char>::do_narrow(const char*, const char*, char, char*)):
 608         Likewise.
 609
 610         * doc/xml/manual/spine.xml: Update copyright years.
 611         * doc/xml/manual/status_cxx2017.xml: Adjust note about -lstdc++fs.
 612         * doc/xml/manual/using.xml: Remove requirement to link with -lstdc++fs
 613         for C++17 filesystem library.
 614         * doc/html/*: Regenerate.
 615
 616         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for truncate.
 617         * config.h.in: Regenerate.
 618         * config/abi/pre/gnu.ver: Order patterns for filesystem operations
 619         alphabetically and add missing entries for copy_symlink,
 620         hard_link_count, rename, and resize_file.
 621         * configure: Regenerate.
 622         * src/c++17/fs_ops.cc (resize_file): Remove #if so posix::truncate is
 623         used unconditionally.
 624         * src/filesystem/ops-common.h (__gnu_posix::truncate)
 625         [!_GLIBCXX_HAVE_TRUNCATE]: Provide fallback definition that only
 626         supports truncating to zero length.
 627         * testsuite/27_io/filesystem/operations/all.cc: New test.
 628         * testsuite/27_io/filesystem/operations/resize_file.cc: New test.
 629
 630 2019-01-06  Jonathan Wakely  <jwakely@redhat.com>
 631
 632         PR libstdc++/86756
 633         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for utime and
 634         lstat and define _GLIBCXX_USE_UTIME and _GLIBCXX_USE_LSTAT.
 635         * config.h.in: Regenerate.
 636         * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export symbols for
 637         remaining std::filesystem types and functions.
 638         * configure: Regenerate.
 639         * src/c++17/Makefile.am: Add C++17 filesystem sources.
 640         * src/c++17/Makefile.in: Regenerate.
 641         * src/c++17/cow-fs_dir.cc: Move src/filesystem/cow-std-dir.cc to
 642         here, and change name of included file.
 643         * src/c++17/cow-fs_ops.cc: Move src/filesystem/cow-std-ops.cc to
 644         here, and change name of included file.
 645         * src/c++17/fs_dir.cc: Move src/filesystem/std-dir.cc to here. Change
 646         path to dir-common.h.
 647         * src/c++17/fs_ops.cc: Move src/filesystem/std-ops.cc to here. Change
 648         path to ops-common.h. Disable -Wunused-parameter warnings.
 649         (internal_file_clock): Define unconditionally.
 650         [!_GLIBCXX_HAVE_SYS_STAT_H] (internal_file_clock::from_stat): Do not
 651         define.
 652         (do_copy_file, do_space): Move definitions to ops.common.h.
 653         (copy, file_size, hard_link_count, last_write_time, space): Only
 654         perform operation when _GLIBCXX_HAVE_SYS_STAT_H is defined, otherwise
 655         report an error.
 656         (last_write_time, read_symlink): Remove unused attributes from
 657         parameters.
 658         * src/filesystem/Makefile.am: Remove C++17 filesystem sources.
 659         * src/filesystem/Makefile.in: Regenerate.
 660         * src/filesystem/cow-std-dir.cc: Move to src/c++17/cow-fs_dir.cc.
 661         * src/filesystem/cow-std-ops.cc: Move to src/c++17/cow-fs_ops.cc.
 662         * src/filesystem/std-dir.cc: Move to src/c++17/fs_dir.cc.
 663         * src/filesystem/std-ops.cc: Move to src/c++17/fs_ops.cc.
 664         * src/filesystem/dir-common.h [!_GLIBCXX_HAVE_DIRENT_H]: Define
 665         dummy types and functions instead of using #error.
 666         * src/filesystem/dir.cc [!_GLIBCXX_HAVE_DIRENT_H]: Use #error.
 667         * src/filesystem/ops-common.h [!_GLIBCXX_USE_LSTAT] (lstat): Define
 668         in terms of stat.
 669         [!_GLIBCXX_HAVE_UNISTD_H]: Define dummy types and functions.
 670         (do_copy_file, do_space): Move definitions here from std-ops.cc.
 671         * src/filesystem/ops.cc: Adjust calls to do_copy_file and do_space
 672         to account for new namespace.
 673         * testsuite/27_io/filesystem/directory_entry/86597.cc: Remove
 674         -lstdc++fs from dg-options.
 675         * testsuite/27_io/filesystem/directory_entry/lwg3171.cc: Likewise.
 676         * testsuite/27_io/filesystem/file_status/1.cc: Likewise.
 677         * testsuite/27_io/filesystem/filesystem_error/cons.cc: Likewise.
 678         * testsuite/27_io/filesystem/filesystem_error/copy.cc: Likewise.
 679         * testsuite/27_io/filesystem/iterators/directory_iterator.cc:
 680         Likewise.
 681         * testsuite/27_io/filesystem/iterators/pop.cc: Likewise.
 682         * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
 683         Likewise.
 684         * testsuite/27_io/filesystem/operations/absolute.cc: Likewise.
 685         * testsuite/27_io/filesystem/operations/canonical.cc: Likewise.
 686         * testsuite/27_io/filesystem/operations/copy.cc: Likewise.
 687         * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
 688         * testsuite/27_io/filesystem/operations/create_directories.cc:
 689         Likewise.
 690         * testsuite/27_io/filesystem/operations/create_directory.cc: Likewise.
 691         * testsuite/27_io/filesystem/operations/create_symlink.cc: Likewise.
 692         * testsuite/27_io/filesystem/operations/current_path.cc: Likewise.
 693         * testsuite/27_io/filesystem/operations/equivalent.cc: Likewise.
 694         * testsuite/27_io/filesystem/operations/exists.cc: Likewise.
 695         * testsuite/27_io/filesystem/operations/file_size.cc: Likewise.
 696         * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
 697         * testsuite/27_io/filesystem/operations/last_write_time.cc: Likewise.
 698         * testsuite/27_io/filesystem/operations/permissions.cc: Likewise.
 699         * testsuite/27_io/filesystem/operations/proximate.cc: Likewise.
 700         * testsuite/27_io/filesystem/operations/read_symlink.cc: Likewise.
 701         * testsuite/27_io/filesystem/operations/relative.cc: Likewise.
 702         * testsuite/27_io/filesystem/operations/remove.cc: Likewise.
 703         * testsuite/27_io/filesystem/operations/remove_all.cc: Likewise.
 704         * testsuite/27_io/filesystem/operations/space.cc: Likewise.
 705         * testsuite/27_io/filesystem/operations/status.cc: Likewise.
 706         * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
 707         * testsuite/27_io/filesystem/operations/temp_directory_path.cc:
 708         Likewise.
 709         * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Likewise.
 710
 711
 712         PR libstdc++/86756
 713         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Make various patterns for
 714         typeinfo and vtables less greedy.
 715         (GLIBCXX_3.4.26): Export symbols for std::filesystem::path.
 716         * src/c++17/Makefile.am: Add fs_path.cc and cow-fs_path.cc.
 717         * src/c++17/Makefile.in: Regenerate.
 718         * src/c++17/cow-fs_path.cc: Move src/filesystem/cow-std-path.cc to
 719         here, and change name of included file.
 720         * src/c++17/fs_path.cc: Move src/filesystem/std-path.cc to here.
 721         * src/filesystem/Makefile.am: Remove std-path.cc and cow-std-path.cc
 722         from sources.
 723         * src/filesystem/Makefile.in: Regenerate.
 724         * src/filesystem/cow-std-path.cc: Move to src/c++17/cow-fs_path.cc.
 725         * src/filesystem/std-path.cc: Move to src/c++17/fs_path.cc.
 726         * testsuite/27_io/filesystem/path/append/path.cc: Remove -lstdc++fs
 727         from dg-options and remove dg-require-filesystem-ts.
 728         * testsuite/27_io/filesystem/path/append/source.cc: Likewise.
 729         * testsuite/27_io/filesystem/path/assign/assign.cc: Likewise.
 730         * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
 731         * testsuite/27_io/filesystem/path/compare/compare.cc: Likewise.
 732         * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
 733         * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
 734         * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
 735         * testsuite/27_io/filesystem/path/concat/path.cc: Likewise.
 736         * testsuite/27_io/filesystem/path/concat/strings.cc: Likewise.
 737         * testsuite/27_io/filesystem/path/construct/80762.cc: Likewise.
 738         * testsuite/27_io/filesystem/path/construct/copy.cc: Likewise.
 739         * testsuite/27_io/filesystem/path/construct/default.cc: Likewise.
 740         * testsuite/27_io/filesystem/path/construct/format.cc: Likewise.
 741         * testsuite/27_io/filesystem/path/construct/locale.cc: Likewise.
 742         * testsuite/27_io/filesystem/path/construct/range.cc: Likewise.
 743         * testsuite/27_io/filesystem/path/construct/string_view.cc: Likewise.
 744         * testsuite/27_io/filesystem/path/decompose/extension.cc: Likewise.
 745         * testsuite/27_io/filesystem/path/decompose/filename.cc: Likewise.
 746         * testsuite/27_io/filesystem/path/decompose/parent_path.cc: Likewise.
 747         * testsuite/27_io/filesystem/path/decompose/relative_path.cc: Likewise.
 748         * testsuite/27_io/filesystem/path/decompose/root_directory.cc:
 749         Likewise.
 750         * testsuite/27_io/filesystem/path/decompose/root_name.cc: Likewise.
 751         * testsuite/27_io/filesystem/path/decompose/root_path.cc: Likewise.
 752         * testsuite/27_io/filesystem/path/decompose/stem.cc: Likewise.
 753         * testsuite/27_io/filesystem/path/generation/normal.cc: Likewise.
 754         * testsuite/27_io/filesystem/path/generation/normal2.cc: Likewise.
 755         * testsuite/27_io/filesystem/path/generation/proximate.cc: Likewise.
 756         * testsuite/27_io/filesystem/path/generation/relative.cc: Likewise.
 757         * testsuite/27_io/filesystem/path/generic/generic_string.cc: Likewise.
 758         * testsuite/27_io/filesystem/path/itr/components.cc: Likewise.
 759         * testsuite/27_io/filesystem/path/itr/traversal.cc: Likewise.
 760         * testsuite/27_io/filesystem/path/modifiers/clear.cc: Likewise.
 761         * testsuite/27_io/filesystem/path/modifiers/make_preferred.cc:
 762         Likewise.
 763         * testsuite/27_io/filesystem/path/modifiers/remove_filename.cc:
 764         Likewise.
 765         * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
 766         Likewise.
 767         * testsuite/27_io/filesystem/path/modifiers/replace_filename.cc:
 768         Likewise.
 769         * testsuite/27_io/filesystem/path/modifiers/swap.cc: Likewise.
 770         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
 771         * testsuite/27_io/filesystem/path/nonmember/append.cc: Likewise.
 772         * testsuite/27_io/filesystem/path/nonmember/hash_value.cc: Likewise.
 773         * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
 774         * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
 775         * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
 776         * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
 777         * testsuite/27_io/filesystem/path/query/has_relative_path.cc: Likewise.
 778         * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
 779         Likewise.
 780         * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
 781         * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
 782         * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
 783         * testsuite/27_io/filesystem/path/query/is_absolute.cc: Likewise.
 784         * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
 785
 786         PR libstdc++/87431
 787         * include/std/variant (_Variant_storage<true, _Types...>::_M_valid):
 788         Check is_trivially_copyable instead of is_scalar.
 789         (variant::emplace<N, Args>(Args&&...)): If construction of the new
 790         contained value can throw and its type is trivially copyable then
 791         construct into a temporary variant and move from it, to provide the
 792         strong exception safety guarantee.
 793         (variant::emplace<N, U, Args>(initializer_list<U>, Args&&...)):
 794         Likewise.
 795         * testsuite/20_util/variant/87431.cc: New test.
 796         * testsuite/20_util/variant/run.cc: Adjust test so that throwing
 797         conversion causes valueless state.
 798
 799         PR libstdc++/88607
 800         * testsuite/17_intro/headers/c++1998/charset.cc: New test.
 801         * testsuite/17_intro/headers/c++2011/charset.cc: New test.
 802         * testsuite/17_intro/headers/c++2014/charset.cc: New test.
 803         * testsuite/17_intro/headers/c++2017/charset.cc: New test.
 804         * testsuite/17_intro/headers/c++2020/charset.cc: New test.
 805
 806 2019-01-05  Jonathan Wakely  <jwakely@redhat.com>
 807
 808         * include/bits/fs_fwd.h (__file_clock): Define new clock.
 809         (file_time_type): Redefine in terms of __file_clock.
 810         * src/filesystem/ops-common.h (file_time): Add FIXME comment about
 811         overflow.
 812         * src/filesystem/std-ops.cc (is_set(perm_options, perm_options)): Give
 813         internal linkage.
 814         (internal_file_lock): New helper type for accessing __file_clock.
 815         (do_copy_file): Use internal_file_lock to convert system time to
 816         file_time_type.
 817         (last_write_time(const path&, error_code&)): Likewise.
 818         (last_write_time(const path&, file_time_type, error_code&)): Likewise.
 819
 820 2019-01-04  Jonathan Wakely  <jwakely@redhat.com>
 821
 822         * config/abi/pre/gnu.ver (GLIBCXX_3.4.21): Make patterns less greedy
 823         for const member functions of std::basic_string.
 824         (GLIBCXX_3.4.26): Export member functions of std::basic_string added
 825         in C++17.
 826         * include/bits/basic_string.h (basic_string(__sv_wrapper, const A&)):
 827         Make non-standard constructor private.
 828         [!_GLIBCXX_USE_CXX11_ABI] (basic_string(__sv_wrapper, const A&)):
 829         Likewise.
 830         * include/bits/basic_string.tcc (std::string, std::wstring): Declare
 831         explicit instantiations for C++17 as well as earlier dialects.
 832         * src/c++17/Makefile.am: Add new source files.
 833         * src/c++17/Makefile.in: Regenerate.
 834         * src/c++17/cow-string-inst.cc: New file defining explicit
 835         instantiations for basic_string member functions added in C++17.
 836         * src/c++17/string-inst.cc: Likewise.
 837
 838         * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export allocator-extended
 839         copy/move constructors for old std::basic_string.
 840         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
 841         (basic_string::reference, basic_string::const_reference): Define
 842         as plain references for C++11 and later.
 843         (basic_string::basic_string()): Put constructor body outside
 844         preprocessor conditional groups.
 845         (basic_string::basic_string(basic_string&&)): Move _Alloc_hider
 846         instead of copying it.
 847         (basic_string::basic_string(const basic_string&, const _Alloc&)):
 848         Define.
 849         (basic_string::basic_string(basic_string&&, const _Alloc&)):
 850         Define.
 851         * include/bits/fs_path.h [!_GLIBCXX_USE_CXX11_ABI]: Remove special
 852         cases for old basic_string.
 853         * testsuite/21_strings/basic_string/cons/char/8.cc: Test
 854         allocator-extended constructors unconditionally. Add extra members to
 855         allocator type when using old string ABI.
 856         * testsuite/21_strings/basic_string/allocator/71964.cc: Enable test
 857         for old string ABI.
 858         * testsuite/21_strings/basic_string/cons/wchar_t/8.cc: Likewise.
 859
 860         * testsuite/23_containers/list/61347.cc: Avoid spurious failure when
 861         -fno-inline added to test flags.
 862
 863         * testsuite/21_strings/basic_string/requirements/
 864         explicit_instantiation/debug.cc: Remove XFAIL for old ABI.
 865
 866         * testsuite/27_io/filesystem/filesystem_error/copy.cc: Fix static
 867         assertion failures with old std::string ABI.
 868
 869         * include/bits/fs_path.h (path::_List::erase): Replace both overloads
 870         with ...
 871         (path::pop_back(), path::_M_erase_from(const_iterator)): New member
 872         functions that will only erase elements at the end.
 873         * src/filesystem/std-path.cc (path::_List::_Impl::pop_back()): Define.
 874         (path::_List::_Impl::_M_erase_from(const_iterator)): Define.
 875         (path::_List::operator=(const _List&)): Use _M_erase_from(p) instead
 876         of erase(p, end()).
 877         (path::_List::pop_back()): Define.
 878         (path::_List::_M_erase_from(const_iterator)): Define.
 879         (path::operator/=(const path&)): Use pop_back to remove last component
 880         and _M_erase_from to remove multiple components.
 881         (path::_M_append(basic_string_view<value_type>)): Likewise.
 882         (path::operator+=(const path&)): Likewise.
 883         (path::_M_concat(basic_string_view<value_type>)): Likewise.
 884         (path::remove_filename()): Likewise.
 885         (path::lexically_normal()): Use _List::_Impl iterators instead of
 886         path::iterator. Use pop_back to remove components from the end. Clear
 887         trailing filename, instead of using erase(const_iterator) to remove
 888         a non-final component.
 889         * testsuite/27_io/filesystem/path/generation/normal.cc: Test
 890         additional cases.
 891         * testsuite/27_io/filesystem/path/generation/normal2.cc: New test.
 892
 893         * src/filesystem/std-path.cc (path::operator+=(const path&)): Fix
 894         incorrect treatment of empty filename after trailing slash.
 895         * testsuite/27_io/filesystem/path/concat/path.cc: Test problem case.
 896
 897         * testsuite/21_strings/basic_string/modifiers/assign/char/
 898         move_assign_optim.cc: Avoid spurious failure when -fno-inline added
 899         to test flags.
 900         * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
 901         move_assign_optim.cc: Likewise.
 902
 903 2019-01-03  Jonathan Wakely  <jwakely@redhat.com>
 904             Jakub Jelinek  <jakub@redhat.com>
 905
 906         PR libstdc++/88607
 907         * include/experimental/memory: Replace UTF-8 quote characters.
 908         * include/std/future: Replace UTF-8 "em dash" characters.
 909
 910 2019-01-03  Jonathan Wakely  <jwakely@redhat.com>
 911
 912         PR libstdc++/88607
 913         * include/bits/forward_list.h: Replace UTF-8 "ligature fi" character.
 914         * include/debug/forward_list: Likewise.
 915         * include/experimental/bits/shared_ptr.h: Remove UTF-8 "section sign"
 916         character.
 917         * include/experimental/chrono: Likewise.
 918         * include/experimental/functional: Likewise.
 919         * include/experimental/ratio: Likewise.
 920         * include/experimental/system_error: Likewise.
 921         * include/experimental/tuple: Likewise.
 922         * include/experimental/type_traits: Likewise.
 923         * include/parallel/workstealing.h: Replace UTF-8 "en dash" character.
 924         * include/parallel/multiseq_selection.h: Likewise.
 925
 926         PR libstdc++/88681
 927         * config/abi/pre/gnu.ver: Add missing exports.
 928         * testsuite/22_locale/collate_byname/88681.cc: New test.
 929         * testsuite/22_locale/time_get/get/char/88681.cc: New test.
 930         * testsuite/22_locale/time_get/get/wchar_t/88681.cc: New test.
 931
 932 2019-01-02  Jonathan Wakely  <jwakely@redhat.com>
 933
 934         * testsuite/23_containers/map/cons/deduction.cc: Test deduction from
 935         initializer_list<value_type> and from input iterator ranges.
 936         * testsuite/23_containers/multimap/cons/deduction.cc: Likewise.
 937
 938         * testsuite/experimental/string_view/element_access/char/empty.cc:
 939         Fix year range in copyright header.
 940
 941 2019-01-02  Joel Brobecker  <brobecker@adacore.com>
 942
 943         * testsuite/21_strings/basic_string_view/element_access/char/empty.cc:
 944         Fix year range in copyright header.
 945
 946 2019-01-01  Jakub Jelinek  <jakub@redhat.com>
 947
 948         Update copyright years.
 949 \f
 950 Copyright (C) 2019 Free Software Foundation, Inc.
 951
 952 Copying and distribution of this file, with or without modification,
 953 are permitted in any medium without royalty provided the copyright
 954 notice and this notice are preserved.