libstdc++-v3/ChangeLog

   1 2019-04-17  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         * testsuite/20_util/variant/compile.cc (MoveCtorOnly): Fix type to
   4         actually match its name.
   5         (MoveCtorAndSwapOnly): Define new type that adds swap to MoveCtorOnly.
   6         (test_swap()): Fix result for MoveCtorOnly and check
   7         MoveCtorAndSwapOnly.
   8
   9         * include/std/optional (optional::value_or(U&&) &&): Add missing
  10         constexpr specifier.
  11         * testsuite/20_util/optional/constexpr/observers/4.cc: Check value_or
  12         for disengaged optionals and rvalue optionals.
  13         * testsuite/20_util/optional/observers/4.cc: Likewise.
  14
  15 2019-04-12  Thomas Rodgers  <trodgers@redhat.com>
  16
  17         * include/pstl/algorithm_impl.h: Uglify identfiers.
  18         * include/pstl/numeric_impl.h:  Uglify identfiers.
  19         * include/pstl/parallel_backend_tbb.h: Uglify identfiers.
  20
  21 2019-04-11  Thomas Rodgers  <trodgers@redhat.com>
  22
  23         * include/bits/c++config:
  24         Add definition for __PSTL_ASSERT.
  25         Add definition for __PSTL_ASSERT_MSG.
  26         * include/pstl/algorithm_impl.h: Replace use of assert().
  27         * include/pstl/numeric_impl.h: Replace use of assert().
  28         * include/pstl/parallel_backend_tbb.h:
  29         Replace use of assert().
  30         Replace use of __TBB_ASSERT().
  31         * include/pstl/parallel_backend_utils.h: Replace use of assert().
  32
  33 2019-04-11  Jonathan Wakely  <jwakely@redhat.com>
  34
  35         PR libstdc++/90046
  36         * src/c++17/memory_resource.cc
  37         (monotonic_buffer_resource::_Chunk::allocate): Increase alignment if
  38         needed to allow placing a _Chunk at the end of the buffer.
  39         (monotonic_buffer_resource::_M_new_buffer): Remove static_assert.
  40
  41 2019-04-10  Jonathan Wakely  <jwakely@redhat.com>
  42
  43         * doc/xml/faq.xml: Add information about emergency EH pool.
  44         * doc/xml/manual/debug.xml: Update list of memory debugging tools.
  45         Move outdated information on mt_allocator to a separate section.
  46         * doc/xml/manual/evolution.xml: Clarify that GLIBCXX_FORCE_NEW
  47         doesn't affect the default allocator.
  48
  49         * testsuite/lib/libstdc++.exp (check_v3_target_parallel_mode): Fix
  50         typo.
  51
  52         PR libstdc++/89851
  53         * testsuite/20_util/variant/89851.cc: New test.
  54
  55 2019-04-09  Jonathan Wakely  <jwakely@redhat.com>
  56
  57         * include/std/variant: Adjust whitespace. Add comments.
  58         (_Multi_array): Leave primary template undefined.
  59         (_Multi_array<_Tp>): Define partial specialization for base case of
  60         recursion.
  61         (__gen_vtable_impl, __gen_vtable): Remove redundant && from type
  62         which is always a reference.
  63         (__gen_vtable::_S_apply()): Remove function, inline body into
  64         default member initializer.
  65         * testsuite/20_util/variant/visit.cc: Test with noncopyable types.
  66
  67         * include/std/variant (__variant_idx_cookie): Add member type.
  68         (__visitor_result_type): Remove.
  69         (__do_visit): Use invoke_result instead of __visitor_result_type.
  70         * testsuite/20_util/variant/visit.cc: New test.
  71
  72         PR libstdc++/90008
  73         * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Remove
  74         unused capture.
  75         * testsuite/20_util/variant/90008.cc: New test.
  76
  77 2019-04-09  Thomas Rodgers  <trodgers@redhat.com>
  78
  79         * include/pstl/algorithm_impl.h: Add namespace qualification.
  80         * include/pstl/execution_defs.h: Add namespace qualification.
  81         * include/pstl/execution_impl.h: Add namespace qualification.
  82         * include/pstl/numeric_impl.h: Add namespace qualification.
  83         * include/pstl/parallel_backend_tbb.h: Add namespace qualification.
  84         * include/pstl/unseq_backend_simd.h: Add namespace qualification.
  85         * include/pstl/parallel_backend_utils.h: Include <cassert>.
  86
  87 2019-04-08  Ville Voutilainen  <ville.voutilainen@gmail.com>
  88
  89         Fix visit<R> for variant.
  90         * include/std/variant (__do_visit): Add a template parameter
  91         for enforcing same return types for visit.
  92         (__gen_vtable_impl): Likewise.
  93         (_S_apply_single_alt): Adjust.
  94         (__visit_invoke_impl): New. Handle casting to void.
  95         (__do_visit_invoke): New. Enforces same return types.
  96         (__do_visit_invoke_r): New. Converts return types.
  97         (__visit_invoke): Adjust.
  98         (__gen_vtable):  Add a template parameter for enforcing
  99         same return types for visit.
 100         * testsuite/20_util/variant/visit_r.cc: Add a test for a visitor with
 101         different return types.
 102         * testsuite/20_util/variant/visit_neg.cc: New. Ensures that
 103         visitors with different return types don't accidentally
 104         compile with regular visitation.
 105
 106 2019-04-08  Christophe Lyon  <christophe.lyon@linaro.org>
 107
 108         * testsuite/27_io/filesystem/iterators/caching.cc: Add
 109         dg-require-filesystem-ts.
 110
 111 2019-04-05  Jonathan Wakely  <jwakely@redhat.com>
 112
 113         * doc/xml/manual/status_cxx2020.xml: Update status.
 114         * include/std/variant (visit<R>): Define for C++2a (P0655R1).
 115         * testsuite/20_util/variant/visit_r.cc: New test.
 116
 117         * include/bits/fs_dir.h (directory_iterator::operator*)
 118         (directory_iterator::operator->): Add noexcept.
 119         (operator==, operator!=): Replace namespace-scope equality operators
 120         for directory iterators with hidden friends.
 121
 122         PR libstdc++/89986
 123         * config/abi/pre/gnu.ver: Add missing exports.
 124         * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Test
 125         increment member.
 126
 127         * config/abi/pre/gnu.ver: Export new symbols.
 128         * include/bits/fs_dir.h (recursive_directory_iterator::options())
 129         (recursive_directory_iterator::recursion_pending())
 130         (recursive_directory_iterator::disable_recursion_pending()): Remove
 131         inline definitions. Make noexcept.
 132         (recursive_directory_iterator::depth())
 133         (recursive_directory_iterator::operator*())
 134         (recursive_directory_iterator::operator->()): Make noexcept.
 135         (recursive_directory_iterator::_M_options)
 136         (recursive_directory_iterator::_M_pending): Remove data members.
 137         * src/c++17/fs_path.cc (_Dir_stack): Add constructor and data members.
 138         (recursive_directory_iterator::recursive_directory_iterator): Remove
 139         ctor-initializer. Use new constructor for _Dir_stack.
 140         (recursive_directory_iterator::options())
 141         (recursive_directory_iterator::recursion_pending())
 142         (recursive_directory_iterator::disable_recursion_pending()): Add
 143         non-inline definitions.
 144         (recursive_directory_iterator::depth()): Make noexcept.
 145         (recursive_directory_iterator::increment(error_code&))
 146         (recursive_directory_iterator::pop(error_code&)): Adjust to new
 147         location of options and recursion_pending members.
 148         * testsuite/27_io/filesystem/iterators/recursion_pending.cc: New test.
 149         * testsuite/util/testsuite_fs.h (__gnu_test::scoped_file): Add
 150         user-declared move constructor and assignment operator, to make the
 151         type move-only.
 152
 153         * src/c++17/fs_dir.cc (_Dir::advance(bool, error_code&)): Handle
 154         d_type == DT_UNKNOWN immediately.
 155         (_Dir::should_recurse(bool, error_code&)): Remove file_type::unknown
 156         handling here.
 157         * testsuite/27_io/filesystem/iterators/caching.cc: New test.
 158
 159         * include/bits/fs_path.h (path::operator=(path&&)): Check for self
 160         assignment.
 161         * src/c++17/fs_path.cc (path::operator=(const path&)): Likewise.
 162         * testsuite/27_io/filesystem/path/assign/copy.cc: Test self
 163         assignment.
 164
 165         PR libstdc++/87431 (again)
 166         * include/bits/basic_string.h (__variant::_Never_valueless_alt):
 167         Define partial specialization for basic_string.
 168         * include/bits/shared_ptr.h (_Never_valueless_alt): Likewise for
 169         shared_ptr and weak_ptr.
 170         * include/bits/std_function.h (_Never_valueless_alt): Likewise for
 171         function.
 172         * include/bits/stl_vector.h (_Never_valueless_alt): Likewise for
 173         vector.
 174         * include/bits/unique_ptr.h (_Never_valueless_alt): Likewise for
 175         unique_ptr.
 176         * include/debug/vector (_Never_valueless_alt): Likewise for debug
 177         vector.
 178         * include/std/any (_Never_valueless_alt): Define explicit
 179         specialization for any.
 180         * include/std/variant (_Never_valueless_alt): Define primary template.
 181         (__never_valueless): Use _Never_valueless_alt instead of
 182         is_trivially_copyable.
 183         (variant::emplace<N>(Args&&...)): Add special case for non-throwing
 184         initializations to avoid try-catch overhead. Add special case for
 185         scalars produced by potentially-throwing conversions. Use
 186         _Never_valueless_alt instead of is_trivially_copyable for the
 187         remaining strong exception-safety cases.
 188         (variant::emplace<N>(initializer_list<U>, Args&&...)): Likewise.
 189         * testsuite/20_util/variant/87431.cc: Run both test functions.
 190         * testsuite/20_util/variant/exception_safety.cc: New test.
 191         * testsuite/20_util/variant/run.cc: Use pmr::string instead of string,
 192         so the variant becomes valueless.
 193
 194 2019-04-03  Jonathan Wakely  <jwakely@redhat.com>
 195
 196         PR libstdc++/85184
 197         * include/std/variant (_Copy_assign_base, _Move_assign_base, variant):
 198         Remove assertions.
 199         (variant::emplace<_Tp>): Return result of emplace<N> directly.
 200
 201         * include/std/string (__hash_string_base): New class template defining
 202         operator() for hashing strings.
 203         (hash<pmr::string>, hash<pmr::u8string>, hash<pmr::u16string>)
 204         (hash<pmr::u32string>, hash<pmr::wstring>): Define for C++17.
 205         * testsuite/21_strings/basic_string/hash/hash.cc: New test.
 206         * testsuite/21_strings/basic_string/hash/hash_char8_t.cc: New test.
 207
 208 2019-04-01  Ville Voutilainen  <ville.voutilainen@gmail.com>
 209
 210         Use single-visitation in variant assignment and swap and relops.
 211         Also use indices instead of types when checking whether
 212         variants hold the same thing.
 213         * include/std/variant (__do_visit): Add a template parameter
 214         for index visitation, invoke with indices if index visitation
 215         is used.
 216         (__variant_idx_cookie): New.
 217         (__visit_with_index): Likewise.
 218         (_Copy_assign_base::operator=): Do single-visitation with
 219         an index visitor.
 220         (_Move_assign_base::operator=): Likewise.
 221         (_Extra_visit_slot_needed): Adjust.
 222         (__visit_invoke): Call with indices if it's an index visitor.
 223         (relops): Do single-visitation with an index visitor.
 224         (swap): Likewise.
 225         (__visitor_result_type): New.
 226
 227 2019-03-30  Eric Botcazou  <ebotcazou@adacore.com>
 228
 229         * src/c++17/fs_ops.cc (fs::permissions): Use std::errc::not_supported.
 230
 231 2019-03-28  Ville Voutilainen  <ville.voutilainen@gmail.com>
 232
 233         Don't revisit a variant we are already visiting.
 234         * include/std/variant (__variant_construct_single): New.
 235         (__variant_construct): Use it.
 236         (_M_destructive_move): Likewise.
 237         (_M_destructive_copy): Likewise.
 238         (_Copy_assign_base::operator=): Adjust.
 239         (_Move_assign_base::operator=): Likewise.
 240         (swap): Likewise.
 241
 242 2019-03-26  Jonathan Wakely  <jwakely@redhat.com>
 243
 244         PR libstdc++/85965
 245         * include/bits/hashtable.h (_Hashtable): Move static assertions to
 246         destructor so they are not evaluated until the _Key type is complete.
 247         * include/bits/stl_tree.h (_Rb_tree): Likewise.
 248         * testsuite/23_containers/set/85965.cc: New test.
 249         * testsuite/23_containers/unordered_set/85965.cc: New test.
 250         * testsuite/23_containers/map/48101_neg.cc: Replace "here" errors
 251         with regexp matching the corresponding _Rb_tree specialization.
 252         * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
 253         * testsuite/23_containers/multiset/48101_neg.cc: Remove "here" error.
 254         * testsuite/23_containers/set/48101_neg.cc: Likewise.
 255         * testsuite/23_containers/unordered_map/48101_neg.cc: Likewise.
 256         * testsuite/23_containers/unordered_multimap/48101_neg.cc: Likewise.
 257         * testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise.
 258         * testsuite/23_containers/unordered_set/48101_neg.cc: Likewise.
 259
 260 2019-03-26  Ville Voutilainen  <ville.voutilainen@gmail.com>
 261
 262         PR libstdc++/89825
 263         Fix based on a suggestion by Antony Polukhin.
 264         * include/std/variant (__never_valueless): New.
 265         (_M_valid): Use it.
 266         (_Extra_visit_slot_needed): New.
 267         (_Multi_array): Use it.
 268         (_S_apply_all_alts): Likewise.
 269
 270 2019-03-26  Ville Voutilainen  <ville.voutilainen@gmail.com>
 271
 272         PR libstdc++/89824
 273         Fix based on a suggestion by Antony Polukhin.
 274         * include/std/variant (__gen_vtable): Don't reserve an
 275         additional table slot, _Multi_array already does that.
 276
 277 2019-03-26  Ville Voutilainen  <ville.voutilainen@gmail.com>
 278
 279         PR libstdc++/89816
 280         Fix based on a suggestion by Antony Polukhin.
 281         * include/std/variant (__variant_construct): Capture a pointer
 282         to the storage and visit just one variant.
 283
 284 2019-03-22  Jonathan Wakely  <jwakely@redhat.com>
 285
 286         * doc/xml/manual/backwards_compatibility.xml: Remove link to
 287         Doxygen-generated pages with unstable URL.
 288         * doc/xml/manual/concurrency_extensions.xml: Likewise.
 289         * doc/xml/manual/extensions.xml: Likewise.
 290         * doc/xml/manual/parallel_mode.xml: Likewise.
 291         * doc/xml/manual/support.xml: Likewise.
 292
 293         * include/bits/stl_algobase.h (__lg): Do arithmetic on type int to
 294         avoid -Wconversion warnings.
 295
 296 2019-03-21  Thomas Rodgers  <trodgers@redhat.com>
 297
 298         * include/Makefile.am (std_header): Add ${std_srcdir}/execution.
 299         (pstl_srcdir, pstl_builddir, pstl_headers): New variables.
 300         (allstamped): Add stamp-pstl.
 301         (install-headers): Add ptsl_builddir.
 302         * include/Makefile.in: Regenerate.
 303         * include/bits/c++config: Add pstl configuration.
 304         * include/pstl/LICENSE.txt: New file.
 305         * include/pstl/algorithm_fwd.h: New file.
 306         * include/pstl/algorithm_impl.h: New file.
 307         * include/pstl/execution_defs.h: New file.
 308         * include/pstl/execution_impl.h: New file.
 309         * include/pstl/glue_algorithm_defs.h: New file.
 310         * include/pstl/glue_algorithm_impl.h: New file.
 311         * include/pstl/glue_execution_defs.h: New file.
 312         * include/pstl/glue_memory_defs.h: New file.
 313         * include/pstl/glue_memory_impl.h: New file.
 314         * include/pstl/glue_numeric_defs.h: New file.
 315         * include/pstl/glue_numeric_impl.h: New file.
 316         * include/pstl/memory_impl.h: New file.
 317         * include/pstl/numeric_fwd.h: New file.
 318         * include/pstl/numeric_impl.h: New file.
 319         * include/pstl/parallel_backend.h: New file.
 320         * include/pstl/parallel_backend_tbb.h: New file.
 321         * include/pstl/parallel_backend_utils.h: New file.
 322         * include/pstl/parallel_impl.h: New file.
 323         * include/pstl/pstl_config.h: New file.
 324         * include/pstl/unseq_backend_simd.h: New file.
 325         * include/pstl/utils.h: New file.
 326         * include/std/algorithm: Include parallel algorithm implementations.
 327         * include/std/execution: New file.
 328         * include/std/memory: Include parallel algorithm implementations.
 329         * include/std/numeric: Include parallel algorithm implementations.
 330         * include/std/version: Add parallel algorithms feature test macro.
 331         * testsuite/util/pstl/pstl_test_config.h: New file.
 332         * testsuite/util/pstl/test_utils.h: New file.
 333         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file.
 334         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file.
 335         * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file.
 336         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file.
 337         * testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file.
 338         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file.
 339         * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file.
 340         * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file.
 341         * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file.
 342         * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file.
 343         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file.
 344         * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file.
 345         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file.
 346         * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file.
 347         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file.
 348         * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file.
 349         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file.
 350         * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file.
 351         * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file.
 352         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file.
 353         * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file.
 354         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file.
 355         * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file.
 356         * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file.
 357         * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file.
 358         * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file.
 359         * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file.
 360         * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file.
 361         * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file.
 362         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file.
 363         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file.
 364         * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file.
 365         * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file.
 366         * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file.
 367         * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file.
 368         * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file.
 369         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file.
 370         * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file.
 371         * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file.
 372         * testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file.
 373         * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file.
 374         * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file.
 375         * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file.
 376         * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file.
 377         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file.
 378         * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file.
 379         * testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file.
 380         * testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file.
 381         * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file.
 382         * testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file.
 383         * testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file.
 384         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file.
 385         * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file.
 386         * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file.
 387         * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file.
 388         * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file.
 389         * testsuite/testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file.
 390         * testsuite/testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file.
 391         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file.
 392         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file.
 393         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file.
 394         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file.
 395         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file.
 396         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file.
 397         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file.
 398         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file.
 399         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file.
 400         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file.
 401         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file.
 402         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file.
 403         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file.
 404         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file.
 405         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file.
 406         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file.
 407         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file.
 408         * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file.
 409         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file.
 410         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file.
 411         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file.
 412         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file.
 413         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file.
 414         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file.
 415         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file.
 416         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file.
 417         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file.
 418         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file.
 419         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file.
 420         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file.
 421         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file.
 422         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file.
 423         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file.
 424         * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file.
 425         * testsuite/testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file.
 426         * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file.
 427         * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file.
 428         * testsuite/testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file.
 429         * testsuite/testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file.
 430         * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file.
 431         * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file.
 432         * testsuite/testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file.
 433         * testsuite/testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file.
 434         * testsuite/testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file.
 435         * testsuite/testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file.
 436         * testsuite/testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file.
 437         * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file.
 438         * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file.
 439
 440 2019-03-21  Jonathan Wakely  <jwakely@redhat.com>
 441
 442         * include/c_compatibility/math.h [!__STDCPP_WANT_MATH_SPEC_FUNCS__]
 443         (assoc_laguerre, assoc_laguerref, assoc_laguerrel, assoc_legendre)
 444         (assoc_legendref, assoc_legendrel, beta, betaf, betal, comp_ellint_1)
 445         (comp_ellint_1f, comp_ellint_1l, comp_ellint_2, comp_ellint_2f)
 446         (comp_ellint_2l, comp_ellint_3, comp_ellint_3f, comp_ellint_3l)
 447         (cyl_bessel_i, cyl_bessel_if, cyl_bessel_il, cyl_bessel_j)
 448         (cyl_bessel_jf, cyl_bessel_jl, cyl_bessel_k, cyl_bessel_kf)
 449         (cyl_bessel_kl, cyl_neumann, cyl_neumannf, cyl_neumannl, ellint_1)
 450         (ellint_1f, ellint_1l, ellint_2, ellint_2f, ellint_2l, ellint_3)
 451         (ellint_3f, ellint_3l, expint, expintf, expintl, hermite, hermitef)
 452         (hermitel, laguerre, laguerref, laguerrel, legendre, legendref)
 453         (legendrel, riemann_zeta, riemann_zetaf, riemann_zetal, sph_bessel)
 454         (sph_besself, sph_bessell, sph_legendre, sph_legendref, sph_legendrel)
 455         (sph_neumann, sph_neumannf, sph_neumannl): Only add using-declarations
 456         when the special functions IS is enabled, not for C++17.
 457         * testsuite/26_numerics/headers/cmath/functions_global_c++17.cc:
 458         Replace with ...
 459         * testsuite/26_numerics/headers/cmath/functions_global.cc: New test,
 460         without checks for special functions in C++17.
 461         * testsuite/26_numerics/headers/cmath/special_functions_global.cc:
 462         New test.
 463
 464         PR libstdc++/88066
 465         * include/backward/hash_map: Use <> for includes not "".
 466         * include/backward/hash_set: Likewise.
 467         * include/backward/strstream: Likewise.
 468         * include/tr1/bessel_function.tcc: Likewise.
 469         * include/tr1/exp_integral.tcc: Likewise.
 470         * include/tr1/legendre_function.tcc: Likewise.
 471         * include/tr1/modified_bessel_func.tcc: Likewise.
 472         * include/tr1/riemann_zeta.tcc: Likewise.
 473
 474 2019-03-19  Jonathan Wakely  <jwakely@redhat.com>
 475
 476         * doc/xml/manual/allocator.xml: Link to table documenting evolution
 477         of extension allocators.
 478         * doc/xml/manual/evolution.xml: Use angle brackets for header names.
 479         Document new headers in 7.2, 8.1 and 9.1 releases.
 480         * doc/xml/manual/using.xml: Adjust link target for new_allocator.
 481         * doc/html/*: Regenerate.
 482
 483 2019-03-12  John David Anglin  <dave.anglin@bell.net>
 484
 485         PR libstdc++/89461
 486         * testsuite/lib/libstdc++.exp: Locate libatomic.
 487         * testsuite/lib/dg-options.exp (add_options_for_libatomic): New.
 488         * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc: Add
 489         libatomic options.
 490         * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
 491         * testsuite/experimental/net/timer/waitable/cons.cc: Likewise.
 492         * testsuite/experimental/net/timer/waitable/dest.cc: Likewise.
 493         * testsuite/experimental/net/timer/waitable/ops.cc: Likewise.
 494
 495 2019-03-11  Jonathan Wakely  <jwakely@redhat.com>
 496
 497         PR libstdc++/89460
 498         * configure.ac: Check for sockatmark.
 499         * crossconfig.m4: Check for sockatmark.
 500         * config.h.in: Regenerate.
 501         * configure: Regenerate.
 502         * include/experimental/internet (address_v4::_S_hton): Rename
 503         overloaded functions to _S_hton_16 and _S_ntoh_16.
 504         (address_v4::_S_ntoh): Rename to _S_ntoh_16 and _S_ntoh_32.
 505         (basic_endpoint): Adjust calls to _S_hton and _S_ntoh.
 506         * include/experimental/socket (basic_socket::at_mark): Check
 507         _GLIBCXX_HAVE_SOCKATMARK.
 508
 509         * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc: Use
 510         const variables instead of macros.
 511
 512         PR libstdc++/89629
 513         * libsupc++/hash_bytes.cc [__SIZEOF_SIZE_T__ == 8] (_Hash_bytes):
 514         Use correct type for len_aligned.
 515         * testsuite/20_util/hash/89629.cc: New test.
 516
 517 2019-03-11  Jakub Jelinek  <jakub@redhat.com>
 518
 519         PR libstdc++/89641
 520         * include/std/atomic (atomic<T>::store, atomic<T>::load,
 521         atomic<T>::exchange, atomic<T>::compare_exchange_weak,
 522         atomic<T>::compare_exchange_strong): Cast __m or __s and __f to int.
 523         * include/bits/atomic_base.h (__atomic_base<T>::operator++,
 524         __atomic_base<T>::operator--, __atomic_base<T>::operator+=,
 525         __atomic_base<T>::operator-=, __atomic_base<T>::operator&=,
 526         __atomic_base<T>::operator|=, __atomic_base<T>::operator^=,
 527         __atomic_base<T*>::operator++, __atomic_base<T*>::operator--,
 528         __atomic_base<T*>::operator+=, __atomic_base<T*>::operator-=): Cast
 529         memory_order_seq_cst to int.
 530
 531 2019-03-08  Jonathan Wakely  <jwakely@redhat.com>
 532
 533         * doc/xml/manual/using.xml: Use link element instead of xref.
 534         * doc/html/*: Regenerate.
 535
 536         * include/bits/fs_path.h (path::format): Add fixed underlying type.
 537
 538 2019-03-08  François Dumont  <fdumont@gcc.gnu.org>
 539
 540         PR libstdc++/89477
 541         * include/debug/map.h (map): Use _RequireNotAllocator to constrain
 542         parameters in deduction guides.
 543         * include/debug/multimap.h (multimap): Likewise.
 544         * include/debug/set.h (multimap): Likewise.
 545         * include/debug/multiset.h (multimap): Likewise.
 546         * include/debug/unordered_map (unordered_map): Likewise.
 547         (unordered_multimap): Likewise.
 548         * include/debug/unordered_set (unordered_set): Likewise.
 549         (unordered_multiset): Likewise.
 550
 551         PR libstdc++/89608
 552         * include/debug/unordered_map (unordered_map<>::_M_check_rehashed):
 553         Invalidate all iterators in case of rehash.
 554         (unordered_multimap<>::_M_check_rehashed): Likewise.
 555         * include/debug/unordered_set
 556         (unordered_set<>::_M_check_rehashed): Likewise.
 557         (unordered_multiset<>::_M_check_rehashed): Likewise.
 558         * testsuite/23_containers/unordered_set/debug/89608_neg.cc: New.
 559
 560 2019-03-07  Andreas Schwab  <schwab@suse.de>
 561
 562         * config/abi/post/riscv64-linux-gnu: New directory.
 563         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: New file.
 564
 565 2019-03-07  Jonathan Wakely  <jwakely@redhat.com>
 566
 567         * testsuite/20_util/function_objects/bind_front/1.cc: Change from
 568         compile test to run. Fix typo.
 569
 570         * doc/xml/manual/status_cxx2020.xml: Update C++20 status.
 571         * doc/html/*: Regenerate.
 572
 573         P0356R5 Simplified partial function application
 574         * include/std/functional [C++20] (_Bind_front, _Bind_front_t): Define
 575         helpers for bind_front.
 576         (bind_front, __cpp_lib_bind_front): Define.
 577         * testsuite/20_util/function_objects/bind_front/1.cc: New test.
 578
 579 2019-03-06  Jonathan Wakely  <jwakely@redhat.com>
 580
 581         * include/std/type_traits (__cpp_lib_bounded_array_traits): Define.
 582         * include/std/version (__cpp_lib_bounded_array_traits): Likewise.
 583         * testsuite/20_util/is_bounded_array/value.cc: Check for macro.
 584         * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
 585
 586 2019-03-06  Edward Smith-Rowland  <3dw4rd@verizon.net>
 587
 588         PR libstdc++/86655 - std::assoc_legendre should not constrain
 589         the value of m (or x).
 590         * include/tr1/legendre_function.tcc (__assoc_legendre_p,
 591         __sph_legendre): If degree > order Don't throw, return 0.
 592         (__legendre_p, __assoc_legendre_p): Don't constrain x either.
 593         * testsuite/special_functions/02_assoc_legendre/pr86655.cc: New test.
 594         * testsuite/special_functions/20_sph_legendre/pr86655.cc: New test.
 595         * testsuite/tr1/5_numerical_facilities/special_functions/
 596         02_assoc_legendre/pr86655.cc: New test.
 597         * testsuite/tr1/5_numerical_facilities/special_functions/
 598         22_sph_legendre/pr86655.cc: New test.
 599
 600 2019-03-06  Ville Voutilainen  <ville.voutilainen@gmail.com>
 601
 602         Rewrite variant.
 603         Also PR libstdc++/85517
 604         * include/std/variant (__do_visit): New.
 605         (__variant_cast): Likewise.
 606         (__variant_cookie): Likewise.
 607         (__erased_*): Remove.
 608         (_Variant_storage::_S_vtable): Likewise.
 609         (_Variant_storage::__M_reset_impl): Adjust to use __do_visit.
 610         (_Variant_storage::__M_reset): Adjust.
 611         (__variant_construct): New.
 612         (_Copy_ctor_base(const _Copy_ctor_base&)): Adjust to use
 613         __variant_construct.
 614         (_Move_ctor_base(_Move_ctor_base&&)): Likewise.
 615         (_Move_ctor_base::__M_destructive_copy): New.
 616         (_Move_ctor_base::__M_destructive_move): Adjust to use
 617         __variant_construct.
 618         (_Copy_assign_base::operator=): Adjust to use __do_visit.
 619         (_Copy_assign_alias): Adjust to check both copy assignment
 620         and copy construction for triviality.
 621         (_Move_assign_base::operator=): Adjust to use __do_visit.
 622         (_Multi_array): Add support for visitors that accept and return
 623         a __variant_cookie.
 624         (__gen_vtable_impl::_S_apply_all_alts): Likewise.
 625         (__gen_vtable_impl::_S_apply_single_alt): Likewise.
 626         (__gen_vtable_impl::__element_by_index_or_cookie): New. Generate
 627         a __variant_cookie temporary for a variant that is valueless and..
 628         (__gen_vtable_impl::__visit_invoke): ..adjust here.
 629         (__gen_vtable::_Array_type): Conditionally make space for
 630         the __variant_cookie visitor case.
 631         (__variant_construct_by_index): New.
 632         (get_if): Adjust to use std::addressof.
 633         (relops): Adjust to use __do_visit.
 634         (variant): Add __variant_cast and __variant_construct_by_index
 635         as friends.
 636         (variant::emplace): Use _M_reset() and __variant_construct_by_index
 637         instead of self-destruction.
 638         (variant::swap): Adjust to use __do_visit.
 639         (visit): Reimplement in terms of __do_visit.
 640         (__variant_hash_call_base_impl::operator()): Adjust to use __do_visit.
 641         * testsuite/20_util/variant/compile.cc: Adjust.
 642         * testsuite/20_util/variant/run.cc: Likewise.
 643
 644 2019-03-06  Jonathan Wakely  <jwakely@redhat.com>
 645
 646         * include/bits/c++config.h (_cpp_lib_char8_t): Add L suffix to
 647         constant.
 648         * testsuite/experimental/feat-char8_t.cc: Likewise.
 649
 650          * include/std/type_traits [C++20] (is_bounded_array)
 651          (is_unbounded_array, is_bounded_array_v, is_unbounded_array_v):
 652          Define.
 653          * testsuite/20_util/is_bounded_array/requirements/
 654          explicit_instantiation.cc: New test.
 655          * testsuite/20_util/is_bounded_array/requirements/typedefs.cc: New
 656          test.
 657          * testsuite/20_util/is_bounded_array/value.cc: New test.
 658          * testsuite/20_util/is_unbounded_array/requirements/
 659          explicit_instantiation.cc: New test.
 660          * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc: New
 661          * test.
 662          * testsuite/20_util/is_unbounded_array/value.cc: New test.
 663
 664         * include/bits/ptr_traits.h [C++20] (pointer_traits<T*>::pointer_to):
 665         Add constexpr.
 666         * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc: New test.
 667
 668 2019-03-05  Jonathan Wakely  <jwakely@redhat.com>
 669
 670         * include/c_compatibility/math.h [C++20] (lerp): Add using
 671         declaration.
 672         * include/c_global/cmath [C++20] (__cpp_lib_interpolate): Define.
 673         (__lerp): Define function template to implement lerp.
 674         (lerp(float, float, float), lerp(double, double, double))
 675         (lerp(long double, long double, long double)): Define for C++20.
 676         * include/std/numeric [C++20] (__cpp_lib_interpolate): Define.
 677         (midpoint(T, T), midpoint(T*, T*)): Define.
 678         * include/std::version [C++20] (__cpp_lib_interpolate): Define.
 679         * testsuite/26_numerics/lerp.cc: New test.
 680         * testsuite/26_numerics/midpoint/floating.cc: New test.
 681         * testsuite/26_numerics/midpoint/integral.cc: New test.
 682         * testsuite/26_numerics/midpoint/pointer.cc: New test.
 683
 684 2019-03-04  Edward Smith-Rowland  <3dw4rd@verizon.net>
 685
 686         PR libstdc++/88996 Implement P0439R0
 687         Make std::memory_order a scoped enumeration.
 688         * include/bits/atomic_base.h: For C++20 make memory_order a scoped enum,
 689         add variables for the old enumerators.  Adjust calls.
 690         * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc: New test.
 691         * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc: New test.
 692
 693 2019-03-04  Jonathan Wakely  <jwakely@redhat.com>
 694
 695         * testsuite/26_numerics/bit/bitops.rot/rotl.cc: Remove bogus dg-do
 696         directive.
 697
 698         * include/std/memory_resource (polymorphic_allocator): Add default
 699         template argument for C++20.
 700         (polymorphic_allocator::allocate_bytes)
 701         (polymorphic_allocator::deallocate_bytes)
 702         (polymorphic_allocator::allocate_object)
 703         (polymorphic_allocator::deallocate_object)
 704         (polymorphic_allocator::new_object)
 705         (polymorphic_allocator::delete_object): New member functions for
 706         C++20.
 707         * testsuite/20_util/polymorphic_allocator/allocate_object.cc: New
 708         test.
 709
 710 2019-03-03  Jonathan Wakely  <jwakely@redhat.com>
 711
 712         PR libstdc++/89562
 713         * src/filesystem/ops-common.h (do_copy_file): Open files in binary
 714         mode for mingw.
 715
 716 2019-03-01  Jonathan Wakely  <jwakely@redhat.com>
 717
 718         * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource)
 719         [!__cpp_sized_deallocation]: Do not pass size to operator delete.
 720
 721         * include/std/memory (uses_allocator_construction_args): New set of
 722         overloaded functions.
 723         (make_obj_using_allocator, uninitialized_construct_using_allocator):
 724         New functions.
 725         * include/std/memory_resource (polymorphic_allocator::construct)
 726         [__cplusplus > 201703l]: Replace all overloads with a single function
 727         using uses_allocator_construction_args.
 728         * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc: New
 729         test.
 730         * testsuite/20_util/uses_allocator/make_obj.cc: New test.
 731
 732 2019-02-27  Jonathan Wakely  <jwakely@redhat.com>
 733
 734         PR libstdc++/89466
 735         * acinclude.m4 (GLIBCXX_CONFIGURE_DOCBOOK): Reorder check for local
 736         stylesheet directories before check for xsltproc. Try to use
 737         xmlcatalog to find local stylesheet directory before trying hardcoded
 738         paths. Add path used by suse to hardcoded paths. Adjust xsltproc
 739         check to look for the same stylesheet as doc/Makefile.am uses. Don't
 740         use xsltproc if xmlcatalog fails to find a local stylesheet.
 741         * configure.ac: Check for xmlcatalog.
 742         * Makefile.in: Regenerate.
 743         * configure: Likewise.
 744         * doc/Makefile.in: Likewise.
 745         * include/Makefile.in: Likewise.
 746         * libsupc++/Makefile.in: Likewise.
 747         * po/Makefile.in: Likewise.
 748         * python/Makefile.in: Likewise.
 749         * src/Makefile.in: Likewise.
 750         * src/c++11/Makefile.in: Likewise.
 751         * src/c++17/Makefile.in: Likewise.
 752         * src/c++98/Makefile.in: Likewise.
 753         * src/filesystem/Makefile.in: Likewise.
 754         * testsuite/Makefile.in: Likewise.
 755
 756 2019-02-26  Jonathan Wakely  <jwakely@redhat.com>
 757
 758         PR libstdc++/89477
 759         * include/bits/alloc_traits.h (_RequireNotAllocator): New helper for
 760         container deduction guides.
 761         * include/bits/hashtable.h (_RequireNotAllocatorOrIntegral): Likewise.
 762         * include/bits/stl_map.h (map): Use _RequireNotAllocator to constrain
 763         parameters in deduction guides.
 764         * include/bits/stl_multimap.h (multimap): Likewise.
 765         * include/bits/stl_multiset.h (multiset): Likewise.
 766         * include/bits/stl_queue.h (queue, priority_queue): Likewise.
 767         * include/bits/stl_set.h (set): Likewise.
 768         * include/bits/stl_stack.h (stack): Likewise.
 769         * include/bits/unordered_map.h (unordered_map, unordered_multimap):
 770         use _RequireNotAllocator and _RequireNotAllocatorOrIntegral to
 771         constrain parameters in deduction guides.
 772         * include/bits/unordered_set.h (unordered_set, unordered_multiset):
 773         Likewise.
 774         * testsuite/23_containers/map/cons/deduction.cc: Test additional
 775         deduction cases.
 776         * testsuite/23_containers/multiset/cons/deduction.cc: Likewise.
 777         * testsuite/23_containers/set/cons/deduction.cc: Likewise.
 778         * testsuite/23_containers/unordered_map/cons/deduction.cc: Likewise.
 779         * testsuite/23_containers/unordered_multimap/cons/deduction.cc:
 780         Likewise.
 781         * testsuite/23_containers/unordered_multiset/cons/deduction.cc:
 782         Likewise.
 783         * testsuite/23_containers/unordered_set/cons/deduction.cc: Likewise.
 784
 785         PR libstdc++/89416
 786         * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Change
 787         to class template and partial specialization using void_t.
 788         (__is_copy_insertable, __is_move_insertable): Adjust base class.
 789
 790 2019-02-24  Jonathan Wakely  <jwakely@redhat.com>
 791
 792         PR libstdc++/89416
 793         * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Make
 794         copy and move members public.
 795
 796 2019-02-23  Jonathan Wakely  <jwakely@redhat.com>
 797
 798         * include/std/type_traits (__underlying_type_impl): New helper to
 799         make underlying_type SFINAE-friendly.
 800         (underlying_type): Derive from __underlying_type_impl.
 801         * testsuite/20_util/underlying_type/requirements/typedefs-3.cc: New
 802         test.
 803
 804         PR libstdc++/89446
 805         * include/bits/char_traits.h (__constant_char_array): Check index is
 806         in range before dereferencing.
 807         (char_traits<char>::compare, char_traits<char>::find)
 808         (char_traits<char8_t>::compare, char_traits<char8_t>::find): Return
 809         immediately if n is zero.
 810         (char_traits<wchar_t>::compare, char_traits<wchar_t>::find): Likewise.
 811         Remove workarounds for PR 67026.
 812         * testsuite/21_strings/basic_string_view/operators/char/89446.cc:
 813         New test.
 814         * testsuite/21_strings/basic_string_view/operators/wchar_t/89446.cc:
 815         New test.
 816
 817 2019-02-22  Eric Botcazou  <ebotcazou@adacore.com>
 818
 819         * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Adjust.
 820         * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
 821
 822 2019-02-22  Jakub Jelinek  <jakub@redhat.com>
 823
 824         PR libstdc++/89402
 825         * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Change return
 826         type to std::size_t and argument to type to long double.
 827
 828 2019-02-22  Eric Botcazou  <ebotcazou@adacore.com>
 829
 830         * configure.host (abi_baseline_pair): Adjust for SPARC64/Linux.
 831         * config/abi/post/sparc64-linux-gnu: New directory.
 832         * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: New file.
 833         * config/abi/post/sparc64-linux-gnu/32: New directory.
 834         * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: New file.
 835
 836 2019-02-21  Jonathan Wakely  <jwakely@redhat.com>
 837
 838         * testsuite/29_atomics/headers/atomic/types_std_c++20.cc: New test.
 839         * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc: New
 840         test.
 841
 842 2019-02-22  Tom Honermann  <tom@honermann.net>
 843
 844         * python/libstdcxx/v6/printers.py (register_type_printers): Add type
 845         printers for u8string and u8string_view.
 846
 847 2019-02-22  Tom Honermann  <tom@honermann.net>
 848
 849         * testsuite/18_support/byte/ops.cc: Validate
 850         std::to_integer<char8_t>, std::to_integer<char16_t>, and
 851         std::to_integer<char32_t>.
 852         * testsuite/18_support/numeric_limits/dr559.cc: Validate
 853         std::numeric_limits<char8_t>.
 854         * testsuite/18_support/numeric_limits/lowest.cc: Validate
 855         std::numeric_limits<char8_t>::lowest().
 856         * testsuite/18_support/numeric_limits/max_digits10.cc: Validate
 857         std::numeric_limits<char8_t>::max_digits10.
 858         * testsuite/18_support/type_info/fundamental.cc: Validate
 859         typeinfo for char8_t.
 860         * testsuite/20_util/from_chars/1_c++20_neg.cc: New test, validating
 861         std::from_chars with char8_t.
 862         * testsuite/20_util/hash/requirements/explicit_instantiation.cc:
 863         Validate explicit instantiation of std::hash<char8_t>.
 864         * testsuite/20_util/is_integral/value.cc: Validate
 865         std::is_integral<char8_t>.
 866         * testsuite/20_util/make_signed/requirements/typedefs-4.cc:
 867         Validate std::make_signed<char8_t>.
 868         * testsuite/21_strings/basic_string/cons/char/deduction.cc:
 869         Validate u8string construction from char8_t sources.
 870         * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Validate
 871         std::pmr::u8string.
 872         * testsuite/21_strings/basic_string_view/operations/compare/
 873         char/70483.cc: Validate substr operations on u8string_view.
 874         * testsuite/21_strings/basic_string_view/typedefs.cc: Validate that
 875         the u8string_view typedef is defined.
 876         * testsuite/21_strings/char_traits/requirements/
 877         constexpr_functions.cc: Validate char_traits<char8_t> constexpr
 878         member functions.
 879         * testsuite/21_strings/char_traits/requirements/
 880         constexpr_functions_c++17.cc: Validate char_traits<char8_t> C++17
 881         constexpr member functions.
 882         * testsuite/21_strings/headers/string/types_std_c++0x.cc: Validate
 883         that the u8string typedef is defined.
 884         * testsuite/22_locale/locale/cons/unicode.cc: Validate the presence
 885         of the std::codecvt<char16_t, char8_t, std::mbstate_t> and
 886         std::codecvt<char32_t, char8_t, std::mbstate_t> facets.
 887         * testsuite/29_atomics/atomic/cons/assign_neg.cc: Update line
 888         numbers.
 889         * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
 890         * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc:
 891         Likewise.
 892         * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
 893         * testsuite/29_atomics/atomic_integral/is_always_lock_free.cc:
 894         Validate std::atomic<char8_t>::is_always_lock_free
 895         * testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc:
 896         Update line numbers.
 897         * testsuite/29_atomics/atomic_integral/operators/decrement_neg.cc:
 898         Likewise.
 899         * testsuite/29_atomics/atomic_integral/operators/increment_neg.cc:
 900         Likewise.
 901         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
 902         Validate std::experimental::pmr::u8string.
 903         * testsuite/experimental/string_view/typedefs.cc: Validate that the
 904         u8string_view typedef is defined.
 905         * testsuite/util/testsuite_common_types.h: Add char8_t, char16_t and
 906         char32_t to the typelists.
 907
 908 2019-02-22  Tom Honermann  <tom@honermann.net>
 909
 910         * include/ext/typelist.h: Constrain a partial specialization of
 911         typelist::detail::append_ to only match chain<T1,T2>.
 912
 913 2019-02-21  Jonathan Wakely  <jwakely@redhat.com>
 914
 915         PR libstdc++/89416
 916         * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Replace
 917         class template with class. Replace move and copy member types with
 918         member alias templates, so they are only instantiated when needed.
 919         (__is_copy_insertable, __is_move_insertable): Adjust base class.
 920         * testsuite/23_containers/vector/modifiers/push_back/89130.cc: Enable
 921         test for C++11/14/17 as well.
 922         * testsuite/23_containers/vector/modifiers/push_back/89416.cc: New
 923         test.
 924
 925 2019-02-20  Jakub Jelinek  <jakub@redhat.com>
 926
 927         PR libstdc++/89402
 928         * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Add
 929         _GLIBCXX_PURE to the alias declaration.
 930
 931 2019-02-19  Jonathan Wakely  <jwakely@redhat.com>
 932
 933         * testsuite/21_strings/basic_string/literals/types.cc
 934         [_GLIBCXX_USE_CHAR8_T]: Adjust expected string type for u8 literal.
 935         * testsuite/21_strings/basic_string/literals/values.cc
 936         [_GLIBCXX_USE_CHAR8_T]: Likewise.
 937         * testsuite/22_locale/codecvt/char16_t.cc: Adjust for u8 literals
 938         potentially having different type.
 939         * testsuite/22_locale/codecvt/char32_t.cc: Likewise.
 940         * testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: Cast u8 literal
 941         to char.
 942         * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: Likewise.
 943         * testsuite/22_locale/codecvt/utf8.cc: Likewise.
 944         * testsuite/22_locale/conversions/string/2.cc: Remove u8 prefix from
 945         string literals only using basic character set.
 946         * testsuite/22_locale/conversions/string/3.cc: Likewise. Cast other
 947         u8 literals to char.
 948         * testsuite/29_atomics/headers/atomic/macros.cc [_GLIBCXX_USE_CHAR8_T]:
 949         Test ATOMIC_CHAR8_T_LOCK_FREE.
 950         Add missing #error to ATOMIC_CHAR16_T_LOCK_FREE test.
 951         * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc
 952         [_GLIBCXX_USE_CHAR8_T]: Check for std::atomic_char8_t.
 953         * testsuite/experimental/string_view/literals/types.cc
 954         [_GLIBCXX_USE_CHAR8_T]: Adjust expected string_view type for u8
 955         literal.
 956         * testsuite/experimental/string_view/literals/values.cc
 957         [_GLIBCXX_USE_CHAR8_T]: Likewise.
 958
 959 2019-02-19  Tom Honermann  <tom@honermann.net>
 960
 961         * testsuite/18_support/numeric_limits/char8_t.cc: New test cloned
 962         from char16_32_t.cc; validates numeric_limits<char8_t>.
 963         * testsuite/21_strings/basic_string/literals/types-char8_t.cc: New
 964         test cloned from types.cc; validates operator""s for char8_t
 965         returns u8string.
 966         * testsuite/21_strings/basic_string/literals/values-char8_t.cc: New
 967         test cloned from values.cc; validates construction and comparison
 968         of u8string values.
 969         * testsuite/21_strings/basic_string/requirements/
 970         /explicit_instantiation/char8_t/1.cc: New test cloned from
 971         char16_t/1.cc; validates explicit instantiation of
 972         basic_string<char8_t>.
 973         * testsuite/21_strings/basic_string_view/literals/types-char8_t.cc:
 974         New test cloned from types.cc; validates operator""sv for char8_t
 975         returns u8string_view.
 976         * testsuite/21_strings/basic_string_view/literals/
 977         values-char8_t.cc: New test cloned from values.cc; validates
 978         construction and comparison of u8string_view values.
 979         * testsuite/21_strings/basic_string_view/requirements/
 980         explicit_instantiation/char8_t/1.cc: New test cloned from
 981         char16_t/1.cc; validates explicit instantiation of
 982         basic_string_view<char8_t>.
 983         * testsuite/21_strings/char_traits/requirements/char8_t/65049.cc:
 984         New test cloned from char16_t/65049.cc; validates that
 985         char_traits<char8_t> is not vulnerable to the concerns in PR65049.
 986         * testsuite/21_strings/char_traits/requirements/char8_t/
 987         typedefs.cc: New test cloned from char16_t/typedefs.cc; validates
 988         that char_traits<char8_t> member typedefs are present and correct.
 989         * testsuite/21_strings/char_traits/requirements/
 990         explicit_instantiation/char8_t/1.cc: New test cloned from
 991         char16_t/1.cc; validates explicit instantiation of
 992         char_traits<char8_t>.
 993         * testsuite/22_locale/codecvt/char16_t-char8_t.cc: New test cloned
 994         from char16_t.cc: validates
 995         codecvt<char16_t, char8_t, mbstate_t>.
 996         * testsuite/22_locale/codecvt/char32_t-char8_t.cc: New test cloned
 997         from char32_t.cc: validates
 998         codecvt<char32_t, char8_t, mbstate_t>.
 999         * testsuite/22_locale/codecvt/utf8-char8_t.cc: New test cloned from
1000         utf8.cc; validates codecvt<char16_t, char8_t, std::mbstate_t> and
1001         codecvt<char32_t, char8_t, std::mbstate_t>.
1002         * testsuite/27_io/filesystem/path/native/string-char8_t.cc: New
1003         test cloned from string.cc; validates filesystem::path construction
1004         from char8_t input.
1005         * testsuite/experimental/feat-char8_t.cc: New test; validates that
1006         the __cpp_lib_char8_t feature test macro is defined with the
1007         correct value.
1008         * testsuite/experimental/filesystem/path/native/string-char8_t.cc:
1009         New test cloned from string.cc; validates filesystem::path
1010         construction from char8_t input.
1011         * testsuite/experimental/string_view/literals/types-char8_t.cc: New
1012         test cloned from types.cc; validates operator""sv for char8_t
1013         returns u8string_view.
1014         * testsuite/experimental/string_view/literals/values-char8_t.cc:
1015         New test cloned from values.cc; validates construction and
1016         comparison of u8string_view values.
1017         * testsuite/experimental/string_view/requirements/
1018         explicit_instantiation/char8_t/1.cc: New test cloned from
1019         char16_t/1.cc; validates explicit instantiation of
1020         basic_string_view<char8_t>.
1021         * testsuite/ext/char8_t/atomic-1.cc: New test; validates that
1022         ATOMIC_CHAR8_T_LOCK_FREE is not defined if char8_t support is not
1023         enabled.
1024
1025 2019-02-19  Tom Honermann  <tom@honermann.net>
1026
1027         P0482R5 char8_t: Standard library support
1028         * config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
1029         typeinfo symbols for char8_t.
1030         * config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
1031         (GLIBCXX_3.4.26): Add symbols for specializations of
1032         numeric_limits and codecvt that involve char8_t.
1033         (CXXABI_1.3.12): Add typeinfo symbols for char8_t.
1034         * include/bits/atomic_base.h: Add atomic_char8_t.
1035         * include/bits/basic_string.h: Add std::hash<u8string> and
1036         operator""s(const char8_t*, size_t).
1037         * include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
1038         __cpp_lib_char8_t.
1039         * include/bits/char_traits.h: Add char_traits<char8_t>.
1040         * include/bits/codecvt.h: Add
1041         codecvt<char16_t, char8_t, mbstate_t>,
1042         codecvt<char32_t, char8_t, mbstate_t>,
1043         codecvt_byname<char16_t, char8_t, mbstate_t>, and
1044         codecvt_byname<char32_t, char8_t, mbstate_t>.
1045         * include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
1046         recognize char8_t as an integral type.
1047         * include/bits/fs_path.h: (path::__is_encoded_char): Recognize
1048         char8_t.
1049         (path::u8string): Return std::u8string when char8_t support is
1050         enabled.
1051         (path::generic_u8string): Likewise.
1052         (path::_S_convert): Handle conversion from char8_t input.
1053         (path::_S_str_convert): Likewise.
1054         * include/bits/functional_hash.h: Add hash<char8_t>.
1055         * include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
1056         char8_t.
1057         * include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
1058         for new char8_t specializations.
1059         * include/bits/localefwd.h: Add missing declarations of
1060         codecvt<char16_t, char, mbstate_t> and
1061         codecvt<char32_t, char, mbstate_t>.  Add char8_t declarations
1062         codecvt<char16_t, char8_t, mbstate_t> and
1063         codecvt<char32_t, char8_t, mbstate_t>.
1064         * include/bits/postypes.h: Add u8streampos
1065         * include/bits/stringfwd.h: Add declarations of
1066         char_traits<char8_t> and u8string.
1067         * include/c_global/cstddef: Add __byte_operand<char8_t>.
1068         * include/experimental/bits/fs_path.h (path::__is_encoded_char):
1069         Recognize char8_t.
1070         (path::u8string): Return std::u8string when char8_t support is
1071         enabled.
1072         (path::generic_u8string): Likewise.
1073         (path::_S_convert): Handle conversion from char8_t input.
1074         (path::_S_str_convert): Likewise.
1075         * include/experimental/string: Add u8string.
1076         * include/experimental/string_view: Add u8string_view,
1077         hash<experimental::u8string_view>, and
1078         operator""sv(const char8_t*, size_t).
1079         * include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
1080         * include/std/charconv (__is_int_to_chars_type): Recognize char8_t
1081         as a character type.
1082         * include/std/limits: Add numeric_limits<char8_t>.
1083         * include/std/string_view: Add u8string_view,
1084         hash<experimental::u8string_view>, and
1085         operator""sv(const char8_t*, size_t).
1086         * include/std/type_traits: Add __is_integral_helper<char8_t>,
1087         __make_unsigned<char8_t>, and __make_signed<char8_t>.
1088         * libsupc++/atomic_lockfree_defines.h: Define
1089         ATOMIC_CHAR8_T_LOCK_FREE.
1090         * src/c++11/Makefile.am: Compile with -fchar8_t when compiling
1091         codecvt.cc and limits.cc so that char8_t specializations of
1092         numeric_limits and codecvt and emitted.
1093         * src/c++11/Makefile.in: Likewise.
1094         * src/c++11/codecvt.cc: Define members of
1095         codecvt<char16_t, char8_t, mbstate_t>,
1096         codecvt<char32_t, char8_t, mbstate_t>,
1097         codecvt_byname<char16_t, char8_t, mbstate_t>, and
1098         codecvt_byname<char32_t, char8_t, mbstate_t>.
1099         * src/c++11/limits.cc: Define members of
1100         numeric_limits<char8_t>.
1101         * src/c++98/Makefile.am: Compile with -fchar8_t when compiling
1102         locale_init.cc and localename.cc.
1103         * src/c++98/Makefile.in: Likewise.
1104         * src/c++98/locale_init.cc: Add initialization for the
1105         codecvt<char16_t, char8_t, mbstate_t> and
1106         codecvt<char32_t, char8_t, mbstate_t> facets.
1107         * src/c++98/localename.cc: Likewise.
1108         * testsuite/util/testsuite_abi.cc: Validate ABI bump.
1109
1110 2019-02-18  Wilco Dijkstra  <wdijkstr@arm.com>
1111
1112         * 27_io/filesystem/operations/all.cc: Add dg-require-filesystem-ts.
1113         * 27_io/filesystem/operations/resize_file.cc: Likewise.
1114         * 27_io/filesystem/path/generation/normal2.cc: Likewise.
1115
1116 2019-02-14  Jonathan Wakely  <jwakely@redhat.com>
1117
1118         * doc/xml/manual/status_cxx2020.xml: Update P0887R1 status.
1119         * doc/html/*: Regenerate.
1120
1121         * doc/xml/manual/status_cxx2017.xml: Add P0063R3 to status table.
1122         * doc/html/*: Regenerate.
1123
1124         * doc/xml/manual/intro.xml: Document LWG 2586 status.
1125         * include/bits/uses_allocator.h (__uses_alloc): Use const lvalue
1126         allocator type in is_constructible checks.
1127         * testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust dg-error.
1128         * testsuite/20_util/scoped_allocator/dr2586.cc: New test.
1129         * testsuite/20_util/tuple/cons/allocators.cc: Add test using
1130         problematic type from LWG 2586 discussion.
1131         * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error.
1132         * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
1133
1134         * configure.ac: Check for C11 timespec_get function.
1135         * crossconfig.m4 (freebsd, linux, gnu, cygwin, solaris, netbsd)
1136         (openbsd): Likewise
1137         * config.h.in: Regenerate.
1138         * configure: Regenerate.
1139         * include/c_global/ctime (timespec, timespec_get): Add to namespace
1140         std for C++17 and up.
1141
1142         * doc/xml/manual/intro.xml: Document LWG 2537 status.
1143         * include/bits/stl_queue.h
1144         (priority_queue(const Compare&, const Container&, const Alloc&))
1145         (priority_queue(const Compare&, Container&&, const Alloc&)): Call
1146         make_heap.
1147         * testsuite/23_containers/priority_queue/dr2537.cc: New test.
1148
1149         * doc/xml/manual/intro.xml: Document LWG 2566 status.
1150         * include/bits/stl_queue.h (queue, priority_queue): Add static
1151         assertions to enforce LWG 2566 requirement on value_type.
1152         * include/bits/stl_stack.h (stack): Likewise.
1153
1154         PR middle-end/89303
1155         * testsuite/20_util/enable_shared_from_this/89303.cc: New test.
1156
1157         * doc/xml/manual/intro.xml: Document LWG 2735 status.
1158         * include/bits/std_abs.h: Add comment about LWG 2735.
1159         * testsuite/26_numerics/headers/cstdlib/dr2735.cc: New test.
1160
1161 2019-02-13  Jonathan Wakely  <jwakely@redhat.com>
1162
1163         PR libstdc++/89345
1164         * include/std/version [__cpp_impl_destroying_delete]
1165         (__cpp_lib_destroying_delete): Only define for C++2a and later.
1166         * libsupc++/new [__cpp_impl_destroying_delete]
1167         (__cpp_lib_destroying_delete): Likewise.
1168         (destroying_delete_t, destroying_delete): Likewise, but define even
1169         when __cpp_impl_destroying_delete is not defined.
1170         * testsuite/18_support/destroying_delete.cc: New test.
1171
1172 2019-02-11  Jonathan Wakely  <jwakely@redhat.com>
1173
1174         PR libstdc++/89023
1175         * testsuite/17_intro/headers/c++2011/parallel_mode.cc: New test.
1176         * testsuite/17_intro/headers/c++2014/parallel_mode.cc: New test.
1177         * testsuite/17_intro/headers/c++2017/parallel_mode.cc: New test.
1178         * testsuite/28_regex/headers/regex/parallel_mode.cc: Remove.
1179
1180 2019-02-09  Jonathan Wakely  <jwakely@redhat.com>
1181
1182         PR libstdc++/71044
1183         * include/bits/fs_path.h (path::has_root_name)
1184         (path::has_root_directory, path::has_root_path)
1185         (path::has_relative_path, path::has_parent_path)
1186         (path::has_filename, path::has_stem, path::has_extension)
1187         (path::is_absolute, path::is_relative, path::_M_find_extension): Add
1188         noexcept.
1189         * src/c++17/fs_path.cc (path::has_root_name)
1190         (path::has_root_directory, path::has_root_path)
1191         (path::has_relative_path, path::has_parent_path)
1192         (path::has_filename, path::_M_find_extension): Add noexcept.
1193
1194 2019-02-06  Jonathan Wakely  <jwakely@redhat.com>
1195
1196         PR libstdc++/89102 (partial)
1197         * include/std/type_traits (common_type<>): Define.
1198         (common_type<T>): Derive from common_type<T, T>.
1199         * testsuite/20_util/common_type/requirements/explicit_instantiation.cc:
1200         Test zero-length template argument list.
1201         * testsuite/20_util/common_type/requirements/sfinae_friendly_1.cc:
1202         Test additional single argument cases.
1203         * testsuite/20_util/common_type/requirements/sfinae_friendly_2.cc:
1204         Adjust expected error.
1205
1206 2019-02-05  Jonathan Wakely  <jwakely@redhat.com>
1207
1208         PR libstdc++/89128
1209         * include/bits/stl_queue.h (queue, priority_queue): Add deduction
1210         guides.
1211         * include/bits/stl_stack.h (stack): Likewise.
1212         * testsuite/23_containers/priority_queue/deduction.cc: New test.
1213         * testsuite/23_containers/queue/deduction.cc: New test.
1214         * testsuite/23_containers/stack/deduction.cc: New test.
1215
1216         PR libstdc++/89194
1217         * include/std/type_traits (__is_convertible_helper)
1218         (__is_convertible_helper<_From, _To, false>): Revert changes to
1219         support is_nothrow_convertible.
1220         (__is_nt_convertible_helper): New helper.
1221         (is_nothrow_convertible): Use __is_nt_convertible_helper.
1222
1223         * testsuite/23_containers/vector/modifiers/push_back/49836.cc: Restore
1224         use of CopyConsOnlyType, but also test DelAnyAssign for completeness.
1225
1226         PR libstdc++/89130
1227         * include/bits/alloc_traits.h (__is_copy_insertable_impl): Rename to
1228         __is_alloc_insertable_impl. Replace single type member with two
1229         members, one for each of copy and move insertable.
1230         (__is_move_insertable): New trait for internal use.
1231         * include/bits/stl_vector.h (vector::_S_nothrow_relocate(true_type))
1232         (vector::_S_nothrow_relocate(true_type)): New functions to
1233         conditionally check if __relocate_a can throw.
1234         (vector::_S_use_relocate()): Dispatch to _S_nothrow_relocate based
1235         on __is_move_insertable.
1236         (vector::_S_do_relocate): New overloaded functions to conditionally
1237         call __relocate_a.
1238         (vector::_S_relocate): New function that dispatches to _S_do_relocate
1239         based on _S_use_relocate.
1240         * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
1241         (vector::_M_default_append): Call _S_relocate instead of __relocate_a.
1242         * testsuite/23_containers/vector/modifiers/push_back/89130.cc: New.
1243
1244         PR libstdc++/89090
1245         * include/bits/stl_uninitialized.h (__relocate_a_1): Make unused
1246         parameter unnamed. Add message to static assertion.
1247         * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
1248         (vector::_M_default_append): Use _GLIBCXX17_CONSTEXPR for if constexpr
1249         in C++11 code.
1250
1251 2019-02-05  Marc Glisse  <marc.glisse@inria.fr>
1252
1253         PR libstdc++/87106
1254         * include/bits/stl_uninitialized.h (__is_trivially_relocatable):
1255         Rename...
1256         (__is_bitwise_relocatable): ... to this.
1257         (__relocate_a_1): Adapt.
1258         * include/bits/stl_deque.h (__is_trivially_relocatable): Rename...
1259         (__is_bitwise_relocatable): ... to this.
1260
1261 2019-01-30  Jonathan Wakely  <jwakely@redhat.com>
1262
1263         PR libstdc++/89117
1264         * src/c++17/fs_path.cc (path::replace_extension): Erase extension from
1265         final component as well as from _M_pathname. Append the dot using
1266         operator+= instead of only to _M_pathname.
1267         (path::_M_find_extension): Reformat slightly.
1268         * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
1269         Add more test cases.
1270
1271 2019-01-30  Ulrich Drepper  <drepper@redhat.com>
1272
1273         * doc/xml/manual/status_cxx2020.xml: Update P0600 entry.
1274
1275 2019-01-29  Jonathan Wakely  <jwakely@redhat.com>
1276
1277         * testsuite/26_numerics/headers/complex/synopsis.cc: Remove incorrect
1278         constexpr specifiers from arg and proj.
1279
1280         * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add missing exports for
1281         __shared_ptr instantiations used by gcc4-compatible ABI.
1282
1283         * include/experimental/forward_list (experimental::erase): Qualify
1284         call to erase_if.
1285         * include/experimental/list (experimental::erase): Likewise.
1286         * include/std/forward_list (std::erase): Likewise.
1287         * include/std/list (std::erase): Likewise.
1288
1289         * testsuite/20_util/reference_wrapper/result_type.cc: Disable for
1290         C++2a.
1291         * testsuite/20_util/reference_wrapper/typedefs-2.cc: Likewise.
1292         * testsuite/20_util/reference_wrapper/typedefs-3.cc: Likewise.
1293         * testsuite/20_util/reference_wrapper/typedefs.cc: Likewise.
1294         * testsuite/30_threads/async/54297.cc: Suppress nodiscard warning.
1295         * testsuite/ext/array_allocator/26875.cc: Likewise.
1296         * testsuite/ext/pool_allocator/allocate_chunk.cc: Likewise.
1297         * testsuite/util/replacement_memory_operators.h: Likewise.
1298         * testsuite/util/testsuite_allocator.h: Likewise.
1299
1300         * include/std/memory_resource (__pool_resource::_M_unpooled): Use
1301         normal mode vector, even for debug mode.
1302         * include/std/vector [_GLIBCXX_DEBUG] (_GLIBCXX_STD_C::pmr::vector):
1303         Define alias template for normal mode vector.
1304
1305 2019-01-28  Jonathan Wakely  <jwakely@redhat.com>
1306
1307         PR libstdc++/68737
1308         * config/locale/generic/c_locale.h (__convert_from_v)
1309         [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
1310         * config/os/hpux/os_defines.h: Define _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
1311         * include/bits/locale_facets.tcc (num_put::_M_insert_float)
1312         [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
1313
1314 2019-01-24  Jonathan Wakely  <jwakely@redhat.com>
1315
1316         PR libstdc++/88840
1317         * include/bits/stl_vector.h (vector::__use_relocate): Replace static
1318         data member with static member function _S_use_relocate().
1319         * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
1320         (vector::_M_default_append): Use _S_use_relocate() instead of
1321         __use_relocate.
1322
1323         * testsuite/27_io/filesystem/path/compare/strings.cc: Only compare
1324         sign of results.
1325
1326 2019-01-22  Jonathan Wakely  <jwakely@redhat.com>
1327
1328         PR libstdc++/88740
1329         * testsuite/util/testsuite_hooks.h [stderr] (VERIFY): Use fprintf to
1330         write to stderr instead of using printf.
1331
1332 2019-01-21  Jakub Jelinek  <jakub@redhat.com>
1333
1334         PR libstdc++/86590
1335         * include/bits/char_traits.h (__constant_string_p,
1336         __constant_char_array_p): Use __builtin_is_constant_evaluated if
1337         available.
1338
1339 2019-01-20  Ulrich Drepper  <drepper@redhat.com>
1340
1341         Implement C++20 P0600r1.
1342         * include/backward/hash_map: Add nodiscard attribute to empty.
1343         * include/backward/hash_set: Likewise.
1344         * backward/hashtable.h: Likewise.
1345         * include/bits/basic_string.h: Likewise.
1346         * include/bits/forward_list.h: Likewise.
1347         * include/bits/hashtable.h: Likewise.
1348         * include/bits/regex.h: Likewise.
1349         * include/bits/stl_deque.h: Likewise.
1350         * include/bits/stl_list.h: Likewise.
1351         * include/bits/stl_map.h: Likewise.
1352         * include/bits/stl_multimap.h: Likewise.
1353         * include/bits/stl_multiset.h: Likewise.
1354         * include/bits/stl_queue.h: Likewise.
1355         * include/bits/stl_set.h: Likewise.
1356         * include/bits/stl_stack.h: Likewise.
1357         * include/bits/stl_tree.h: Likewise.
1358         * include/bits/stl_vector.h: Likewise.
1359         * include/bits/unordered_map.h: Likewise.
1360         * include/bits/unordered_set.h: Likewise.
1361         * include/debug/array: Likewise.
1362         * include/experimental/any: Likewise.
1363         * include/experimental/bits/fs_path.h: Likewise.
1364         * include/experimental/internet: Likewise.
1365         * include/experimental/string_view: Likewise.
1366         * include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp:
1367         Likewise.
1368         * include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp:
1369         Likewise.
1370         * include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp:
1371         Likewise.
1372         * include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp:
1373         Likewise.
1374         * include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp:
1375         Likewise.
1376         * include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp:
1377         Likewise.
1378         * include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp:
1379         Likewise.
1380         * include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp:
1381         Likewise.
1382         * include/ext/pb_ds/detail/left_child_next_sibling_heap_/
1383         info_fn_imps.hpp: Likewise.
1384         * include/ext/pb_ds/detail/left_child_next_sibling_heap_/
1385         left_child_next_sibling_heap_.hpp: Likewise.
1386         * include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp:
1387         Likewise.
1388         * include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp:
1389         Likewise.
1390         * include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp:
1391         Likewise.
1392         * include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hp:
1393         Likewise.
1394         * include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp:
1395         Likewise.
1396         * include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp:
1397         Likewise.
1398         * include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp:
1399         Likewise.
1400         * include/ext/pb_ds/detail/tree_trace_base.hpp: Likewise.
1401         * include/ext/pb_ds/trie_policy.hpp: Likewise.
1402         * include/ext/rope: Likewise.
1403         * include/ext/slist: Likewise.
1404         * include/ext/vstring.h: Likewise.
1405         * include/profile/array: Likewise.
1406         * include/std/array: Likewise.
1407         * include/tr1/array: Likewise.
1408         * include/tr1/hashtable.h: Likewise.
1409         * include/tr1/regex: Likewise.
1410         * include/tr2/dynamic_bitset: Likewise.
1411         * include/bits/alloc_traits.h: Add nodiscard attribute to
1412         allocate.
1413         * include/experimental/memory_resource: Likewise.
1414         * include/ext/alloc_traits.h: Likewise.
1415         * include/ext/array_allocator.h: Likewise.
1416         * include/ext/bitmap_allocator.h: Likewise.
1417         * include/ext/debug_allocator.h: Likewise.
1418         * include/ext/extptr_allocator.h: Likewise.
1419         * include/ext/mt_allocator.h: Likewise.
1420         * include/ext/new_allocator.h: Likewise.
1421         * include/ext/pool_allocator.h: Likewise.
1422         * include/ext/throw_allocator.h: Likewise.
1423         * include/std/scoped_allocator: Likewise.
1424         * libsupc++/eh_alloc.cc: Likewise.
1425         * include/std/future: Add nodiscard attribute to async.
1426         * libsupc++/new: Add nodiscard attribute to new.
1427
1428 2019-01-18  Jonathan Wakely  <jwakely@redhat.com>
1429
1430         PR libstdc++/87514
1431         PR libstdc++/87520
1432         PR libstdc++/88782
1433         * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export new symbol.
1434         * include/bits/shared_ptr.h
1435         (shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...))
1436         (allocate_shared): Change to use new tag type.
1437         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_eq):
1438         Declare new member function.
1439         (_Sp_alloc_shared_tag): Define new type.
1440         (_Sp_counted_ptr_inplace): Declare __shared_count<_Lp> as a friend.
1441         (_Sp_counted_ptr_inplace::_M_get_deleter) [!__cpp_rtti]: Use
1442         _Sp_make_shared_tag::_S_eq to check type_info.
1443         (__shared_count(Ptr, Deleter),__shared_count(Ptr, Deleter, Alloc)):
1444         Constrain to prevent being called with _Sp_alloc_shared_tag.
1445         (__shared_count(_Sp_make_shared_tag, const _Alloc&, Args&&...)):
1446         Replace constructor with ...
1447         (__shared_count(Tp*&, _Sp_alloc_shared_tag<_Alloc>, Args&&...)): Use
1448         reference parameter so address of the new object can be returned to
1449         the caller. Obtain the allocator from the tag type.
1450         (__shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)): Replace
1451         constructor with ...
1452         (__shared_ptr(_Sp_alloc_shared_tag<Alloc>, Args&&...)): Pass _M_ptr
1453         to the __shared_count constructor.
1454         (__allocate_shared): Change to use new tag type.
1455         * src/c++11/shared_ptr.cc (_Sp_make_shared_tag::_S_eq): Define.
1456
1457 2019-01-17  Jonathan Wakely  <jwakely@redhat.com>
1458
1459         * src/c++17/fs_ops.cc
1460         (equivalent(const path&, const path&, error_code&))
1461         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use GetFileInformationByHandle to
1462         compare files instead of relying on incomplete info returned by stat.
1463
1464         PR libstdc++/88884
1465         * src/c++17/fs_ops.cc (absolute(const path&, error_code&)): Do nothing
1466         if the path is already absolute.
1467         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize root-directory.
1468         [!_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Pass error_code to current_path.
1469
1470         PR libstdc++/88881
1471         * src/c++17/fs_ops.cc (canonical(const path&, error_code&))
1472         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize path, to match behaviour
1473         of filesystem::exists.
1474         (create_directories(const path&, error_code&)): Add assertions.
1475         (status(const path&, error_code&)) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]:
1476         Add workaround for bug in _wstat for paths with trailing slash.
1477         * testsuite/27_io/filesystem/operations/create_directories.cc: Adjust
1478         for expected behaviour on mingw.
1479         * testsuite/experimental/filesystem/operations/create_directories.cc:
1480         Likewise.
1481         * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Use
1482         "TMP" instead of "TMPDIR" and clean environment before each test. Do
1483         not test permissions on mingw targets.
1484
1485 2019-01-16  Jonathan Wakely  <jwakely@redhat.com>
1486
1487         * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add exports for fstream
1488         constructors and open members taking wide strings. Fix patterns for
1489         filesystem::path members to match wstring_view parameters. Add
1490         exports for shared_ptr members used by directory iterators.
1491         * src/c++17/fs_ops.cc (remove(const path&, error_code&)): Clear the
1492         error code parameter if the file doesn't exist.
1493         * src/filesystem/ops.cc (remove(const path&, error_code&)):
1494         Likewise.
1495         * testsuite/27_io/filesystem/operations/canonical.cc: Fix expected
1496         values for mingw targets, where "/" is not an absolute path. Do not
1497         test symlinks on mingw targets.
1498         * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
1499         * testsuite/27_io/filesystem/operations/copy.cc: Do not test symlinks
1500         on mingw targets.
1501         * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
1502         * testsuite/27_io/filesystem/operations/create_directories.cc: Check
1503         that each component of the path is created.
1504         * testsuite/experimental/filesystem/operations/create_directories.cc:
1505         Likewise.
1506         * testsuite/27_io/filesystem/operations/exists.cc: Do not test
1507         permissions on mingw targets.
1508         * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
1509         * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
1510         * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
1511         * testsuite/27_io/filesystem/operations/permissions.cc: XFAIL for
1512         mingw targets.
1513         * testsuite/experimental/filesystem/operations/permissions.cc:
1514         Likewise.
1515         * testsuite/27_io/filesystem/operations/remove.cc: Do not test
1516         symlinks or permissions on mingw targets.
1517         * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
1518         * testsuite/27_io/filesystem/operations/remove_all.cc: Do not test
1519         symlinks on mingw targets.
1520         * testsuite/experimental/filesystem/operations/remove_all.cc:
1521         Likewise.
1522         * testsuite/27_io/filesystem/operations/status.cc: Do not test
1523         permissions on mingw targets.
1524         * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Do not
1525         test symlinks on mingw targets.
1526         * testsuite/experimental/filesystem/operations/space.cc: Fix test
1527         for mingw targets.
1528
1529 2019-02-14  Ulrich Drepper  <drepper@redhat.com>
1530
1531         PR libstdc++/88738
1532         Warn about unused comparisons of shared_ptr/unique_ptr
1533         * include/bits/c++config [_GLIBCXX_NODISCARD]: Define.
1534         * include/bits/shared_ptr.h: Use it for operator ==, !=,
1535         <, <=, >, >= for shared_ptr.
1536         * include/bits/unique_ptr.h: Likewise for unique_ptr.
1537
1538 2019-01-15  Jonathan Wakely  <jwakely@redhat.com>
1539
1540         * include/bits/shared_ptr_base.h (__cpp_lib_shared_ptr_arrays): Define
1541         as 201611L, because P0497R0 changes are supported.
1542         * include/std/version (__cpp_lib_shared_ptr_arrays): Likewise.
1543
1544         * include/bits/erase_if.h [__cplusplus > 201703L]
1545         (__cpp_lib_erase_if): Only define for C++2a.
1546         * include/std/iterator [__cplusplus >= 201402L && !_GLIBCXX_DEBUG]
1547         (__cpp_lib_null_iterators): Define.
1548         * include/std/version [__cplusplus >= 201402L && !_GLIBCXX_DEBUG]
1549         (__cpp_lib_null_iterators): Define.
1550         [__cpp_impl_destroying_delete] (__cpp_lib_destroying_delete): Define.
1551
1552         * doc/xml/manual/status_cxx2017.xml: Document P0032R3 and P0307R2
1553         status.
1554         * include/bits/stl_uninitialized.h (__cpp_lib_raw_memory_algorithms):
1555         Define.
1556         * include/std/any (__cpp_lib_any): Define as 201606L, because P0032R3
1557         changes are supported.
1558         * include/std/optional (__cpp_lib_optional): Likewise.
1559         * include/std/variant (__cpp_lib_variant): Likewise.
1560         * include/std/version [!__STRICT_ANSI__]
1561         (__cpp_lib_uncaught_exceptions): Define as long integer.
1562         [__cplusplus >= 201703L] (__cpp_lib_any)
1563         (__cpp_lib_raw_memory_algorithms, __cpp_lib_uncaught_exceptions)
1564         (__cpp_lib_variant): Define for C++17.
1565         [__cplusplus >= 201703L] (__cpp_lib_optional): Update value and define
1566         as long integer.
1567         * libsupc++/exception (__cpp_lib_uncaught_exceptions): Define as long
1568         integer.
1569
1570         * doc/xml/manual/status_cxx2020.xml: Update P1123R0 status.
1571
1572 2019-01-12  Jonathan Wakely  <jwakely@redhat.com>
1573
1574         PR libstdc++/88811
1575         PR libstdc++/83306
1576         * src/filesystem/path.cc: Fix typo. If first path is empty, show []
1577         before second path.
1578         * testsuite/experimental/filesystem/filesystem_error/cons.cc: New
1579         test.
1580
1581 2019-01-11  Jonathan Wakely  <jwakely@redhat.com>
1582
1583         * doc/xml/manual/intro.xml: Include new section.
1584         * doc/xml/manual/status_cxx2017.xml: Document more
1585         implementation-defined properties of the library.
1586         * doc/xml/manual/status_cxx2020.xml: Document C++2a status.
1587         * doc/html/*: Regenerate.
1588
1589         * include/bits/refwrap.h [__cplusplus > 201703L]
1590         (_Refwrap_base_arg1, _Refwrap_base_arg2, _Reference_wrapper_base)
1591         (_Reference_wrapper_base_memfun): Do not define for C++2a.
1592         (reference_wrapper): Do not derive from _Reference_wrapper_base_memfun
1593         for C++2a.
1594         (reference_wrapper::operator()): Add static assertion.
1595         * testsuite/20_util/reference_wrapper/incomplete.cc: New test.
1596
1597         * include/std/chrono (duration_values::zero(), duration_values::min())
1598         (duration_values::max()): Add noexcept.
1599         (duration::zero(), duration::min(), duration::max()): Likewise.
1600         (time_point::zero(), time_point::min(), time_point::max()): Likewise.
1601         * testsuite/20_util/duration/requirements/noexcept.cc: New test.
1602         * testsuite/20_util/time_point/requirements/noexcept.cc: New test.
1603
1604         * include/std/version (__cpp_lib_erase_if): Move to C++20 group.
1605
1606 2019-01-11  Jakub Jelinek  <jakub@redhat.com>
1607
1608         * include/std/type_traits (__cpp_lib_is_constant_evaluated): Define.
1609         * include/std/version (__cpp_lib_is_constant_evaluated): Define.
1610
1611 2019-01-11  Jonathan Wakely  <jwakely@redhat.com>
1612
1613         PR libstdc++/88802
1614         * include/bits/functional_hash.h (hash<nullptr_t>): Define
1615         specialization for C++17 (P0513R0, LWG 2817).
1616         * testsuite/20_util/hash/nullptr.cc: New test.
1617
1618         PR libstdc++/88125
1619         * config/abi/pre/gnu.ver (GLIBCXX_3.4.6): Remove unused duplicate
1620         pattern for std::basic_stringbuf::str().
1621
1622         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Correct recent changes to
1623         basic_ostream::operator<< patterns.
1624
1625 2019-01-10  Jonathan Wakely  <jwakely@redhat.com>
1626
1627         * testsuite/27_io/filesystem/operations/last_write_time.cc: Fix
1628         test failures on targets with 32-bit time_t.
1629
1630         * include/bits/erase_if.h: Define __cpp_lib_erase_if.
1631         * include/std/deque: Likewise.
1632         * include/std/forward_list: Likewise.
1633         * include/std/list: Likewise.
1634         * include/std/string: Likewise.
1635         * include/std/vector: Likewise.
1636         * include/std/version: Likewise.
1637         * testsuite/21_strings/basic_string/erasure.cc: Test macro.
1638         * testsuite/23_containers/deque/erasure.cc: Likewise.
1639         * testsuite/23_containers/forward_list/erasure.cc: Likewise.
1640         * testsuite/23_containers/list/erasure.cc: Likewise.
1641         * testsuite/23_containers/map/erasure.cc: Likewise.
1642         * testsuite/23_containers/set/erasure.cc: Likewise.
1643         * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
1644         * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
1645         * testsuite/23_containers/vector/erasure.cc: Likewise.
1646
1647         * include/experimental/internet [AI_NUMERICSERV]
1648         (resolver_base::numeric_service): Define conditionally.
1649         * testsuite/experimental/net/internet/resolver/base.cc: Test it
1650         conditionally.
1651         * testsuite/experimental/net/internet/resolver/ops/lookup.cc:
1652         Likewise.
1653
1654 2019-01-10  Ville Voutilainen  <ville.voutilainen@gmail.com>
1655             Jonathan Wakely  <jwakely@redhat.com>
1656
1657         Implement LWG 2221
1658         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten patterns.
1659         (GLIBCXX_3.4.26): Add new exports.
1660         * include/Makefile.am: Add ostream-inst.cc. Move string-inst.cc to
1661         correct list of sources.
1662         * include/Makefile.in: Regenerate.
1663         * include/std/ostream (operator<<(nullptr_t)): New member function.
1664         * src/c++17/ostream-inst.cc: New file.
1665         * testsuite/27_io/basic_ostream/inserters_other/char/lwg2221.cc: New
1666         test.
1667
1668 2019-01-10  Jonathan Wakely  <jwakely@redhat.com>
1669
1670         * testsuite/util/testsuite_fs.h (nonexistent_path): Include name
1671         of the source file containing the caller.
1672         * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Remove
1673         directories created by test.
1674         * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
1675         Likewise.
1676         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
1677         Likewise.
1678         * testsuite/experimental/filesystem/iterators/
1679         recursive_directory_iterator.cc: Likewise.
1680
1681 2019-01-10  Jakub Jelinek  <jakub@redhat.com>
1682
1683         PR tree-optimization/88775
1684         * include/bits/stl_function.h (greater<_Tp*>::operator(),
1685         less<_Tp*>::operator(), greater_equal<_Tp*>::operator(),
1686         less_equal<_Tp*>::operator()): Use __builtin_is_constant_evaluated
1687         instead of __builtin_constant_p if available.  Don't bother with
1688         the pointer comparison in C++11 and earlier.
1689
1690 2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>
1691
1692         PR other/16615
1693
1694         * include/ext/bitmap_allocator.h: Mechanically replace "can not"
1695         with "cannot".
1696
1697 2019-01-09  Jonathan Wakely  <jwakely@redhat.com>
1698
1699         * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix expected output
1700         for filesystem::path. Give variables more distinctive names.
1701
1702         * include/std/optional (_Optional_payload_base::_M_copy_assign): New
1703         member function to perform non-trivial assignment.
1704         (_Optional_payload_base::_M_move_assign): Likewise.
1705         (_Optional_payload<T, true, false, true>::operator=)
1706         (_Optional_payload<T, true, true, false>::operator=)
1707         (_Optional_payload<T, true, false, false>::operator=): Call
1708         _M_copy_assign and/or _M_move_assign to do non-trivial assignments.
1709
1710         PR libstdc++/88204
1711         * testsuite/26_numerics/complex/operators/more_constexpr.cc: Do not
1712         test std::complex<long double> if long double format is IBM128.
1713         * testsuite/26_numerics/complex/requirements/more_constexpr.cc:
1714         Likewise.
1715
1716 2019-01-08  Jonathan Wakely  <jwakely@redhat.com>
1717
1718         * testsuite/libstdc++-prettyprinters/compat.cc: Test printer support
1719         for old std::unique_ptr layout.
1720         * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix std::variant test
1721         to become valueless. Add filesystem::path tests.
1722
1723         PR libstdc++/87855
1724         * include/std/optional (_Optional_payload_base): New class template
1725         for common code hoisted from _Optional_payload specializations. Use
1726         a template for the union, to allow a partial specialization for
1727         types with non-trivial destructors. Add constructors for in-place
1728         initialization to the union.
1729         (_Optional_payload(bool, const _Optional_payload&)): Use _M_construct
1730         to perform non-trivial copy construction, instead of relying on
1731         non-standard copy elision in a delegating constructor.
1732         (_Optional_payload(bool, _Optional_payload&&)): Likewise for
1733         non-trivial move construction.
1734         (_Optional_payload): Derive from _Optional_payload_base and use it
1735         for everything except the non-trivial assignment operators, which are
1736         defined as needed.
1737         (_Optional_payload<false, C, M>): Derive from the specialization
1738         _Optional_payload<true, false, false> and add a destructor.
1739         (_Optional_base_impl::_M_destruct, _Optional_base_impl::_M_reset):
1740         Forward to corresponding members of _Optional_payload.
1741         (_Optional_base_impl::_M_is_engaged, _Optional_base_impl::_M_get):
1742         Hoist common members from _Optional_base.
1743         (_Optional_base): Make all members and base class public.
1744         (_Optional_base::_M_get, _Optional_base::_M_is_engaged): Move to
1745         _Optional_base_impl.
1746         * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Add
1747         support for new std::optional layout.
1748         * testsuite/libstdc++-prettyprinters/compat.cc: New test.
1749
1750         PR libstdc++/88066
1751         * include/bits/locale_conv.h: Use <> for includes not "".
1752         * include/ext/random: Likewise.
1753         * include/ext/vstring.h: Likewise.
1754
1755 2019-01-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1756
1757         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten existing patterns.
1758         (GLIBCXX_3.4.21): Likewise.
1759
1760 2019-01-08  Jonathan Wakely  <jwakely@redhat.com>
1761
1762         PR libstdc++/88749
1763         * src/filesystem/ops.cc (last_write_time): Fix preprocessor condition
1764         to match the one that controls whether utimbuf and utime are declared.
1765
1766 2019-01-07  Jonathan Wakely  <jwakely@redhat.com>
1767
1768         PR libstdc++/87787
1769         * include/bits/char_traits.h (char_traits::move): Do not pass null
1770         pointers to memmove.
1771         * include/bits/locale_facets.h
1772         (ctype<char>::widen(const char*, const char*, char*)): Do not
1773         pass null pointers to memcpy.
1774         (ctype<char>::narrow(const char*, const char*, char, char*)):
1775         Likewise.
1776         (ctype<char>::do_widen(const char*, const char*, char*)):
1777         Likewise.
1778         (ctype<char>::do_narrow(const char*, const char*, char, char*)):
1779         Likewise.
1780
1781         * doc/xml/manual/spine.xml: Update copyright years.
1782         * doc/xml/manual/status_cxx2017.xml: Adjust note about -lstdc++fs.
1783         * doc/xml/manual/using.xml: Remove requirement to link with -lstdc++fs
1784         for C++17 filesystem library.
1785         * doc/html/*: Regenerate.
1786
1787         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for truncate.
1788         * config.h.in: Regenerate.
1789         * config/abi/pre/gnu.ver: Order patterns for filesystem operations
1790         alphabetically and add missing entries for copy_symlink,
1791         hard_link_count, rename, and resize_file.
1792         * configure: Regenerate.
1793         * src/c++17/fs_ops.cc (resize_file): Remove #if so posix::truncate is
1794         used unconditionally.
1795         * src/filesystem/ops-common.h (__gnu_posix::truncate)
1796         [!_GLIBCXX_HAVE_TRUNCATE]: Provide fallback definition that only
1797         supports truncating to zero length.
1798         * testsuite/27_io/filesystem/operations/all.cc: New test.
1799         * testsuite/27_io/filesystem/operations/resize_file.cc: New test.
1800
1801 2019-01-06  Jonathan Wakely  <jwakely@redhat.com>
1802
1803         PR libstdc++/86756
1804         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for utime and
1805         lstat and define _GLIBCXX_USE_UTIME and _GLIBCXX_USE_LSTAT.
1806         * config.h.in: Regenerate.
1807         * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export symbols for
1808         remaining std::filesystem types and functions.
1809         * configure: Regenerate.
1810         * src/c++17/Makefile.am: Add C++17 filesystem sources.
1811         * src/c++17/Makefile.in: Regenerate.
1812         * src/c++17/cow-fs_dir.cc: Move src/filesystem/cow-std-dir.cc to
1813         here, and change name of included file.
1814         * src/c++17/cow-fs_ops.cc: Move src/filesystem/cow-std-ops.cc to
1815         here, and change name of included file.
1816         * src/c++17/fs_dir.cc: Move src/filesystem/std-dir.cc to here. Change
1817         path to dir-common.h.
1818         * src/c++17/fs_ops.cc: Move src/filesystem/std-ops.cc to here. Change
1819         path to ops-common.h. Disable -Wunused-parameter warnings.
1820         (internal_file_clock): Define unconditionally.
1821         [!_GLIBCXX_HAVE_SYS_STAT_H] (internal_file_clock::from_stat): Do not
1822         define.
1823         (do_copy_file, do_space): Move definitions to ops.common.h.
1824         (copy, file_size, hard_link_count, last_write_time, space): Only
1825         perform operation when _GLIBCXX_HAVE_SYS_STAT_H is defined, otherwise
1826         report an error.
1827         (last_write_time, read_symlink): Remove unused attributes from
1828         parameters.
1829         * src/filesystem/Makefile.am: Remove C++17 filesystem sources.
1830         * src/filesystem/Makefile.in: Regenerate.
1831         * src/filesystem/cow-std-dir.cc: Move to src/c++17/cow-fs_dir.cc.
1832         * src/filesystem/cow-std-ops.cc: Move to src/c++17/cow-fs_ops.cc.
1833         * src/filesystem/std-dir.cc: Move to src/c++17/fs_dir.cc.
1834         * src/filesystem/std-ops.cc: Move to src/c++17/fs_ops.cc.
1835         * src/filesystem/dir-common.h [!_GLIBCXX_HAVE_DIRENT_H]: Define
1836         dummy types and functions instead of using #error.
1837         * src/filesystem/dir.cc [!_GLIBCXX_HAVE_DIRENT_H]: Use #error.
1838         * src/filesystem/ops-common.h [!_GLIBCXX_USE_LSTAT] (lstat): Define
1839         in terms of stat.
1840         [!_GLIBCXX_HAVE_UNISTD_H]: Define dummy types and functions.
1841         (do_copy_file, do_space): Move definitions here from std-ops.cc.
1842         * src/filesystem/ops.cc: Adjust calls to do_copy_file and do_space
1843         to account for new namespace.
1844         * testsuite/27_io/filesystem/directory_entry/86597.cc: Remove
1845         -lstdc++fs from dg-options.
1846         * testsuite/27_io/filesystem/directory_entry/lwg3171.cc: Likewise.
1847         * testsuite/27_io/filesystem/file_status/1.cc: Likewise.
1848         * testsuite/27_io/filesystem/filesystem_error/cons.cc: Likewise.
1849         * testsuite/27_io/filesystem/filesystem_error/copy.cc: Likewise.
1850         * testsuite/27_io/filesystem/iterators/directory_iterator.cc:
1851         Likewise.
1852         * testsuite/27_io/filesystem/iterators/pop.cc: Likewise.
1853         * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
1854         Likewise.
1855         * testsuite/27_io/filesystem/operations/absolute.cc: Likewise.
1856         * testsuite/27_io/filesystem/operations/canonical.cc: Likewise.
1857         * testsuite/27_io/filesystem/operations/copy.cc: Likewise.
1858         * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
1859         * testsuite/27_io/filesystem/operations/create_directories.cc:
1860         Likewise.
1861         * testsuite/27_io/filesystem/operations/create_directory.cc: Likewise.
1862         * testsuite/27_io/filesystem/operations/create_symlink.cc: Likewise.
1863         * testsuite/27_io/filesystem/operations/current_path.cc: Likewise.
1864         * testsuite/27_io/filesystem/operations/equivalent.cc: Likewise.
1865         * testsuite/27_io/filesystem/operations/exists.cc: Likewise.
1866         * testsuite/27_io/filesystem/operations/file_size.cc: Likewise.
1867         * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
1868         * testsuite/27_io/filesystem/operations/last_write_time.cc: Likewise.
1869         * testsuite/27_io/filesystem/operations/permissions.cc: Likewise.
1870         * testsuite/27_io/filesystem/operations/proximate.cc: Likewise.
1871         * testsuite/27_io/filesystem/operations/read_symlink.cc: Likewise.
1872         * testsuite/27_io/filesystem/operations/relative.cc: Likewise.
1873         * testsuite/27_io/filesystem/operations/remove.cc: Likewise.
1874         * testsuite/27_io/filesystem/operations/remove_all.cc: Likewise.
1875         * testsuite/27_io/filesystem/operations/space.cc: Likewise.
1876         * testsuite/27_io/filesystem/operations/status.cc: Likewise.
1877         * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
1878         * testsuite/27_io/filesystem/operations/temp_directory_path.cc:
1879         Likewise.
1880         * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Likewise.
1881
1882
1883         PR libstdc++/86756
1884         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Make various patterns for
1885         typeinfo and vtables less greedy.
1886         (GLIBCXX_3.4.26): Export symbols for std::filesystem::path.
1887         * src/c++17/Makefile.am: Add fs_path.cc and cow-fs_path.cc.
1888         * src/c++17/Makefile.in: Regenerate.
1889         * src/c++17/cow-fs_path.cc: Move src/filesystem/cow-std-path.cc to
1890         here, and change name of included file.
1891         * src/c++17/fs_path.cc: Move src/filesystem/std-path.cc to here.
1892         * src/filesystem/Makefile.am: Remove std-path.cc and cow-std-path.cc
1893         from sources.
1894         * src/filesystem/Makefile.in: Regenerate.
1895         * src/filesystem/cow-std-path.cc: Move to src/c++17/cow-fs_path.cc.
1896         * src/filesystem/std-path.cc: Move to src/c++17/fs_path.cc.
1897         * testsuite/27_io/filesystem/path/append/path.cc: Remove -lstdc++fs
1898         from dg-options and remove dg-require-filesystem-ts.
1899         * testsuite/27_io/filesystem/path/append/source.cc: Likewise.
1900         * testsuite/27_io/filesystem/path/assign/assign.cc: Likewise.
1901         * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
1902         * testsuite/27_io/filesystem/path/compare/compare.cc: Likewise.
1903         * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
1904         * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
1905         * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
1906         * testsuite/27_io/filesystem/path/concat/path.cc: Likewise.
1907         * testsuite/27_io/filesystem/path/concat/strings.cc: Likewise.
1908         * testsuite/27_io/filesystem/path/construct/80762.cc: Likewise.
1909         * testsuite/27_io/filesystem/path/construct/copy.cc: Likewise.
1910         * testsuite/27_io/filesystem/path/construct/default.cc: Likewise.
1911         * testsuite/27_io/filesystem/path/construct/format.cc: Likewise.
1912         * testsuite/27_io/filesystem/path/construct/locale.cc: Likewise.
1913         * testsuite/27_io/filesystem/path/construct/range.cc: Likewise.
1914         * testsuite/27_io/filesystem/path/construct/string_view.cc: Likewise.
1915         * testsuite/27_io/filesystem/path/decompose/extension.cc: Likewise.
1916         * testsuite/27_io/filesystem/path/decompose/filename.cc: Likewise.
1917         * testsuite/27_io/filesystem/path/decompose/parent_path.cc: Likewise.
1918         * testsuite/27_io/filesystem/path/decompose/relative_path.cc: Likewise.
1919         * testsuite/27_io/filesystem/path/decompose/root_directory.cc:
1920         Likewise.
1921         * testsuite/27_io/filesystem/path/decompose/root_name.cc: Likewise.
1922         * testsuite/27_io/filesystem/path/decompose/root_path.cc: Likewise.
1923         * testsuite/27_io/filesystem/path/decompose/stem.cc: Likewise.
1924         * testsuite/27_io/filesystem/path/generation/normal.cc: Likewise.
1925         * testsuite/27_io/filesystem/path/generation/normal2.cc: Likewise.
1926         * testsuite/27_io/filesystem/path/generation/proximate.cc: Likewise.
1927         * testsuite/27_io/filesystem/path/generation/relative.cc: Likewise.
1928         * testsuite/27_io/filesystem/path/generic/generic_string.cc: Likewise.
1929         * testsuite/27_io/filesystem/path/itr/components.cc: Likewise.
1930         * testsuite/27_io/filesystem/path/itr/traversal.cc: Likewise.
1931         * testsuite/27_io/filesystem/path/modifiers/clear.cc: Likewise.
1932         * testsuite/27_io/filesystem/path/modifiers/make_preferred.cc:
1933         Likewise.
1934         * testsuite/27_io/filesystem/path/modifiers/remove_filename.cc:
1935         Likewise.
1936         * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
1937         Likewise.
1938         * testsuite/27_io/filesystem/path/modifiers/replace_filename.cc:
1939         Likewise.
1940         * testsuite/27_io/filesystem/path/modifiers/swap.cc: Likewise.
1941         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
1942         * testsuite/27_io/filesystem/path/nonmember/append.cc: Likewise.
1943         * testsuite/27_io/filesystem/path/nonmember/hash_value.cc: Likewise.
1944         * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
1945         * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
1946         * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
1947         * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
1948         * testsuite/27_io/filesystem/path/query/has_relative_path.cc: Likewise.
1949         * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
1950         Likewise.
1951         * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
1952         * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
1953         * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
1954         * testsuite/27_io/filesystem/path/query/is_absolute.cc: Likewise.
1955         * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
1956
1957         PR libstdc++/87431
1958         * include/std/variant (_Variant_storage<true, _Types...>::_M_valid):
1959         Check is_trivially_copyable instead of is_scalar.
1960         (variant::emplace<N, Args>(Args&&...)): If construction of the new
1961         contained value can throw and its type is trivially copyable then
1962         construct into a temporary variant and move from it, to provide the
1963         strong exception safety guarantee.
1964         (variant::emplace<N, U, Args>(initializer_list<U>, Args&&...)):
1965         Likewise.
1966         * testsuite/20_util/variant/87431.cc: New test.
1967         * testsuite/20_util/variant/run.cc: Adjust test so that throwing
1968         conversion causes valueless state.
1969
1970         PR libstdc++/88607
1971         * testsuite/17_intro/headers/c++1998/charset.cc: New test.
1972         * testsuite/17_intro/headers/c++2011/charset.cc: New test.
1973         * testsuite/17_intro/headers/c++2014/charset.cc: New test.
1974         * testsuite/17_intro/headers/c++2017/charset.cc: New test.
1975         * testsuite/17_intro/headers/c++2020/charset.cc: New test.
1976
1977 2019-01-05  Jonathan Wakely  <jwakely@redhat.com>
1978
1979         * include/bits/fs_fwd.h (__file_clock): Define new clock.
1980         (file_time_type): Redefine in terms of __file_clock.
1981         * src/filesystem/ops-common.h (file_time): Add FIXME comment about
1982         overflow.
1983         * src/filesystem/std-ops.cc (is_set(perm_options, perm_options)): Give
1984         internal linkage.
1985         (internal_file_lock): New helper type for accessing __file_clock.
1986         (do_copy_file): Use internal_file_lock to convert system time to
1987         file_time_type.
1988         (last_write_time(const path&, error_code&)): Likewise.
1989         (last_write_time(const path&, file_time_type, error_code&)): Likewise.
1990
1991 2019-01-04  Jonathan Wakely  <jwakely@redhat.com>
1992
1993         * config/abi/pre/gnu.ver (GLIBCXX_3.4.21): Make patterns less greedy
1994         for const member functions of std::basic_string.
1995         (GLIBCXX_3.4.26): Export member functions of std::basic_string added
1996         in C++17.
1997         * include/bits/basic_string.h (basic_string(__sv_wrapper, const A&)):
1998         Make non-standard constructor private.
1999         [!_GLIBCXX_USE_CXX11_ABI] (basic_string(__sv_wrapper, const A&)):
2000         Likewise.
2001         * include/bits/basic_string.tcc (std::string, std::wstring): Declare
2002         explicit instantiations for C++17 as well as earlier dialects.
2003         * src/c++17/Makefile.am: Add new source files.
2004         * src/c++17/Makefile.in: Regenerate.
2005         * src/c++17/cow-string-inst.cc: New file defining explicit
2006         instantiations for basic_string member functions added in C++17.
2007         * src/c++17/string-inst.cc: Likewise.
2008
2009         * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export allocator-extended
2010         copy/move constructors for old std::basic_string.
2011         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
2012         (basic_string::reference, basic_string::const_reference): Define
2013         as plain references for C++11 and later.
2014         (basic_string::basic_string()): Put constructor body outside
2015         preprocessor conditional groups.
2016         (basic_string::basic_string(basic_string&&)): Move _Alloc_hider
2017         instead of copying it.
2018         (basic_string::basic_string(const basic_string&, const _Alloc&)):
2019         Define.
2020         (basic_string::basic_string(basic_string&&, const _Alloc&)):
2021         Define.
2022         * include/bits/fs_path.h [!_GLIBCXX_USE_CXX11_ABI]: Remove special
2023         cases for old basic_string.
2024         * testsuite/21_strings/basic_string/cons/char/8.cc: Test
2025         allocator-extended constructors unconditionally. Add extra members to
2026         allocator type when using old string ABI.
2027         * testsuite/21_strings/basic_string/allocator/71964.cc: Enable test
2028         for old string ABI.
2029         * testsuite/21_strings/basic_string/cons/wchar_t/8.cc: Likewise.
2030
2031         * testsuite/23_containers/list/61347.cc: Avoid spurious failure when
2032         -fno-inline added to test flags.
2033
2034         * testsuite/21_strings/basic_string/requirements/
2035         explicit_instantiation/debug.cc: Remove XFAIL for old ABI.
2036
2037         * testsuite/27_io/filesystem/filesystem_error/copy.cc: Fix static
2038         assertion failures with old std::string ABI.
2039
2040         * include/bits/fs_path.h (path::_List::erase): Replace both overloads
2041         with ...
2042         (path::pop_back(), path::_M_erase_from(const_iterator)): New member
2043         functions that will only erase elements at the end.
2044         * src/filesystem/std-path.cc (path::_List::_Impl::pop_back()): Define.
2045         (path::_List::_Impl::_M_erase_from(const_iterator)): Define.
2046         (path::_List::operator=(const _List&)): Use _M_erase_from(p) instead
2047         of erase(p, end()).
2048         (path::_List::pop_back()): Define.
2049         (path::_List::_M_erase_from(const_iterator)): Define.
2050         (path::operator/=(const path&)): Use pop_back to remove last component
2051         and _M_erase_from to remove multiple components.
2052         (path::_M_append(basic_string_view<value_type>)): Likewise.
2053         (path::operator+=(const path&)): Likewise.
2054         (path::_M_concat(basic_string_view<value_type>)): Likewise.
2055         (path::remove_filename()): Likewise.
2056         (path::lexically_normal()): Use _List::_Impl iterators instead of
2057         path::iterator. Use pop_back to remove components from the end. Clear
2058         trailing filename, instead of using erase(const_iterator) to remove
2059         a non-final component.
2060         * testsuite/27_io/filesystem/path/generation/normal.cc: Test
2061         additional cases.
2062         * testsuite/27_io/filesystem/path/generation/normal2.cc: New test.
2063
2064         * src/filesystem/std-path.cc (path::operator+=(const path&)): Fix
2065         incorrect treatment of empty filename after trailing slash.
2066         * testsuite/27_io/filesystem/path/concat/path.cc: Test problem case.
2067
2068         * testsuite/21_strings/basic_string/modifiers/assign/char/
2069         move_assign_optim.cc: Avoid spurious failure when -fno-inline added
2070         to test flags.
2071         * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
2072         move_assign_optim.cc: Likewise.
2073
2074 2019-01-03  Jonathan Wakely  <jwakely@redhat.com>
2075             Jakub Jelinek  <jakub@redhat.com>
2076
2077         PR libstdc++/88607
2078         * include/experimental/memory: Replace UTF-8 quote characters.
2079         * include/std/future: Replace UTF-8 "em dash" characters.
2080
2081 2019-01-03  Jonathan Wakely  <jwakely@redhat.com>
2082
2083         PR libstdc++/88607
2084         * include/bits/forward_list.h: Replace UTF-8 "ligature fi" character.
2085         * include/debug/forward_list: Likewise.
2086         * include/experimental/bits/shared_ptr.h: Remove UTF-8 "section sign"
2087         character.
2088         * include/experimental/chrono: Likewise.
2089         * include/experimental/functional: Likewise.
2090         * include/experimental/ratio: Likewise.
2091         * include/experimental/system_error: Likewise.
2092         * include/experimental/tuple: Likewise.
2093         * include/experimental/type_traits: Likewise.
2094         * include/parallel/workstealing.h: Replace UTF-8 "en dash" character.
2095         * include/parallel/multiseq_selection.h: Likewise.
2096
2097         PR libstdc++/88681
2098         * config/abi/pre/gnu.ver: Add missing exports.
2099         * testsuite/22_locale/collate_byname/88681.cc: New test.
2100         * testsuite/22_locale/time_get/get/char/88681.cc: New test.
2101         * testsuite/22_locale/time_get/get/wchar_t/88681.cc: New test.
2102
2103 2019-01-02  Jonathan Wakely  <jwakely@redhat.com>
2104
2105         * testsuite/23_containers/map/cons/deduction.cc: Test deduction from
2106         initializer_list<value_type> and from input iterator ranges.
2107         * testsuite/23_containers/multimap/cons/deduction.cc: Likewise.
2108
2109         * testsuite/experimental/string_view/element_access/char/empty.cc:
2110         Fix year range in copyright header.
2111
2112 2019-01-02  Joel Brobecker  <brobecker@adacore.com>
2113
2114         * testsuite/21_strings/basic_string_view/element_access/char/empty.cc:
2115         Fix year range in copyright header.
2116
2117 2019-01-01  Jakub Jelinek  <jakub@redhat.com>
2118
2119         Update copyright years.
2120 \f
2121 Copyright (C) 2019 Free Software Foundation, Inc.
2122
2123 Copying and distribution of this file, with or without modification,
2124 are permitted in any medium without royalty provided the copyright
2125 notice and this notice are preserved.