libstdc++-v3/ChangeLog

   1 2018-05-29  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         * include/std/variant (__erased_dtor): Qualify call to __get.
   4
   5 2018-05-27  François Dumont  <fdumont@gcc.gnu.org>
   6
   7         * include/bits/stl_tree.h (_Rb_tree_impl(_Node_allocator&&)): New.
   8         (_Rb_tree(const allocator_type&)): Use latter.
   9         * include/bits/stl_map.h (map(const allocator_type&)): Likewise.
  10         (map(initializer_list<value_type>, const allocator_type&)): Likewise.
  11         (map(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
  12         * include/bits/stl_multimap.h
  13         (multimap(const allocator_type&)): Likewise.
  14         (multimap(initializer_list<value_type>, const allocator_type&)):
  15         Likewise.
  16         (multimap(_InputIterator, _InputIterator, const allocator_type&)):
  17         Likewise.
  18         * include/bits/stl_set.h (set(const allocator_type&)): Likewise.
  19         (set(initializer_list<value_type>, const allocator_type&)): Likewise.
  20         (set(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
  21         * include/bits/stl_multiset.h
  22         (multiset(const allocator_type&)): Likewise.
  23         (multiset(initializer_list<value_type>, const allocator_type&)):
  24         Likewise.
  25         (multiset(_InputIterator, _InputIterator, const allocator_type&)):
  26         Likewise.
  27
  28 2018-05-25  François Dumont  <fdumont@gcc.gnu.org>
  29
  30         PR libstdc++/85768
  31         * src/c++11/debug.cc: Remove backtrace usage.
  32
  33 2018-05-24  Maya Rashish  <coypu@sdf.org>
  34
  35         PR target/85904
  36         * crossconfig.m4: Test for aligned_alloc on netbsd.
  37         * configure: Regenerate.
  38
  39 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
  40
  41         PR libstdc++/69769
  42         PR libstdc++/85886
  43         * include/bits/atomic_base.h (__atomic_base::value_type)
  44         (__atomic_base::difference_type): Add new typedefs.
  45         * include/std/atomic (atomic<bool>::value_type, atomic<T>::value_type)
  46         (atomic<T*>::value_type, atomic<T*>::difference_type): Likewise.
  47         (atomic<T*>::operator++, atomic<T*>::operator--)
  48         (atomic<T*>::operator+=, atomic<T*>::operator-=)
  49         (atomic<T*>::fetch_add, atomic<T*>::fetch_sub): Add static assertion
  50         to enforce C++17 requirement on pointer arithmetic.
  51         (__atomic_val_t, __atomic_diff_t): New alias templates.
  52         (atomic_init, atomic_store_explicit, atomic_exchange_explicit)
  53         (atomic_compare_exchange_weak_explicit)
  54         (atomic_compare_exchange_strong_explicit, atomic_store)
  55         (atomic_exchange, atomic_compare_exchange_weak)
  56         (atomic_compare_exchange_strong): Use __atomic_val_t to make
  57         scalar parameters be non-deduced contexts.
  58         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
  59         (atomic_fetch_add, atomic_fetch_sub): Change first parameter to be
  60         atomic instead of __atomic_base, and use __atomic_diff_t for scalar
  61         parameters.
  62         (atomic_fetch_and_explicit, atomic_fetch_or_explicit)
  63         (atomic_fetch_xor_explicit, atomic_fetch_and, atomic_fetch_or)
  64         (atomic_fetch_xor): Use __atomic_val_t for scalar parameters.
  65         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
  66         (atomic_fetch_add, atomic_fetch_sub): Remove overloads for atomic
  67         address types.
  68         * testsuite/29_atomics/atomic/60695.cc: Adjust dg-error lineno.
  69         * testsuite/29_atomics/atomic/69769.cc: New test.
  70         * testsuite/29_atomics/atomic/nonmembers.cc: New test.
  71         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
  72         Disable test for C++17 and later.
  73         * testsuite/29_atomics/atomic/requirements/typedefs.cc: New test.
  74         * testsuite/29_atomics/atomic_integral/nonmembers.cc: New test.
  75         * testsuite/29_atomics/atomic_integral/requirements/typedefs.cc: New
  76         test.
  77
  78 2018-05-23  Jonathan Wakely  <jwakely@redhat.com>
  79
  80         * include/bits/fs_path.h (path::__is_encoded_char): Change from class
  81         template to alias template.
  82         (path::__value_type_is_char): Use remove_const_t.
  83         (path:_S_string_from_iter): New helper function.
  84         (path::_S_convert(InputIter, __null_terminated))
  85         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
  86         Use _S_string_from_iter.
  87         (path::string<_CharT, _Allocator>(const _Allocator&)): Allow sharing
  88         rep for COW strings.
  89         * include/experimental/bits/fs_path.h (path::__is_encoded_char):
  90         Change from class template to alias template.
  91         (path::__value_type_is_char): Use remove_const.
  92         (path:_S_string_from_iter): New helper function.
  93         (path::_S_convert(InputIter, __null_terminated))
  94         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
  95         Use _S_string_from_iter.
  96         * testsuite/27_io/filesystem/path/append/source.cc: Test appending
  97         wide strings.
  98         * testsuite/27_io/filesystem/path/concat/strings.cc: Check for exact
  99         string equality, not path equivalence.
 100         * testsuite/27_io/filesystem/path/construct/format.cc: Check
 101         construction from std::string and std::wstring and input iterators.
 102         * testsuite/27_io/filesystem/path/construct/locale.cc: Check
 103         construction from iterators.
 104         * testsuite/experimental/filesystem/path/concat/strings.cc: Check for
 105         exact string equality, not path equivalence.
 106         * testsuite/experimental/filesystem/path/construct/locale.cc: Check
 107         construction from iterators.
 108
 109         * include/bits/fs_path.h (path::_M_type): Change default member
 110         initializer to _Filename.
 111         (path::begin): Create past-the-end iterator for empty path.
 112         * src/filesystem/std-path.cc (path::remove_filename()): Remove
 113         debugging check.
 114         (path::has_relative_path()): Return false for empty filenames.
 115         (path::_M_split_cmpts): Set _M_type to _Filename for empty paths.
 116         Fix offset of empty final component.
 117         * testsuite/27_io/filesystem/path/itr/components.cc: New.
 118         * testsuite/27_io/filesystem/path/itr/traversal.cc: Add new inputs.
 119
 120 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
 121
 122         Add support for opening file streams from wide character strings.
 123         * config/io/basic_file_stdio.cc [_GLIBCXX_HAVE__WFOPEN]
 124         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
 125         Define new overload.
 126         * config/io/basic_file_stdio.h [_GLIBCXX_HAVE__WFOPEN]
 127         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
 128         Declare new overload.
 129         * configure.ac: Check for _wfopen.
 130         * crossconfig.m4: Likewise.
 131         * configure: Regenerate.
 132         * config.h.in: Regenerate.
 133         * include/bits/fstream.tcc [_GLIBCXX_HAVE__WFOPEN]
 134         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
 135         Define new overload.
 136         * include/std/fstream [_GLIBCXX_HAVE__WFOPEN]
 137         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
 138         Declare new overload.
 139         [_GLIBCXX_HAVE__WFOPEN]
 140         (basic_ifstream<C,T>::basic_ifstream(const wchar_t*, openmode))
 141         (basic_ifstream<C,T>::basic_open(const wchar_t*, openmode))
 142         (basic_ofstream<C,T>::basic_ifstream(const wchar_t*, openmode))
 143         (basic_ofstream<C,T>::basic_open(const wchar_t*, openmode))
 144         (basic_fstream<C,T>::basic_ifstream(const wchar_t*, openmode))
 145         (basic_fstream<C,T>::basic_open(const wchar_t*, openmode)): Define
 146         new overloads.
 147         * testsuite/27_io/basic_filebuf/open/wchar_t/1.cc: New.
 148         * testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: New.
 149         * testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: New.
 150         * testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: New.
 151         * testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: New.
 152         * testsuite/27_io/basic_fstream/cons/wchar_t/1.cc: New.
 153         * testsuite/27_io/basic_fstream/open/wchar_t/1.cc: New.
 154
 155 2018-05-21  François Dumont  <fdumont@gcc.gnu.org>
 156
 157         PR libstdc++/85845
 158         * include/bits/stl_tree.h
 159         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): Fix noexcept
 160         qualification.
 161
 162 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
 163
 164         * src/filesystem/std-ops.cc (absolute): Report an error for empty
 165         paths.
 166         (weakly_canonical(const path&)): Do not call canonical on empty path.
 167         (weakly_canonical(const path&, error_code&)): Likewise.
 168         * testsuite/27_io/filesystem/operations/absolute.cc: Check for errors.
 169
 170         PR libstdc++/85818
 171         * testsuite/experimental/filesystem/path/preferred_separator.cc: Add
 172         dg-require-filesystem-ts.
 173
 174         PR libstdc++/85843
 175         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Explicitly
 176         initialize base class to avoid warnings.
 177
 178 2018-05-19  Jonathan Wakely  <jwakely@redhat.com>
 179
 180         * src/c++11/codecvt.cc (__codecvt_utf8_base<wchar_t>::do_in)
 181         [__SIZEOF_WCHAR_T__==2 && __BYTE_ORDER__!=__ORDER_BIG_ENDIAN__]: Set
 182         little_endian element in bitmask.
 183         * testsuite/22_locale/codecvt/codecvt_utf8/69703.cc: Run all tests.
 184         * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: New.
 185
 186 2018-05-18  François Dumont  <fdumont@gcc.gnu.org>
 187
 188         * include/bits/stl_tree.h
 189         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): New.
 190         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, true_type)): New, use latter.
 191         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, false_type)): New.
 192         (_Rb_tree(_Rb_tree&&, _Node_allocator&&)): Adapt, use latters.
 193         * include/debug/map.h
 194         (map(map&&, const_allocator_type&)): Add noexcept qualitication.
 195         * include/debug/multimap.h
 196         (multimap(multimap&&, const_allocator_type&)): Likewise.
 197         * include/debug/set.h
 198         (set(set&&, const_allocator_type&)): Likewise.
 199         * include/debug/multiset.h
 200         (multiset(multiset&&, const_allocator_type&)): Likewise.
 201         * testsuite/23_containers/map/cons/noexcept_default_construct.cc:
 202         Add checks.
 203         * testsuite/23_containers/map/cons/noexcept_move_construct.cc:
 204         Add checks.
 205         * testsuite/23_containers/multimap/cons/noexcept_default_construct.cc:
 206         Add checks.
 207         * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc:
 208         Add checks.
 209         * testsuite/23_containers/multiset/cons/noexcept_default_construct.cc:
 210         Add checks.
 211         * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc:
 212         Add checks.
 213         * testsuite/23_containers/set/cons/noexcept_default_construct.cc:
 214         Add checks.
 215         * testsuite/23_containers/set/cons/noexcept_move_construct.cc:
 216         Add checks.
 217
 218 2018-05-18  Jason Merrill  <jason@redhat.com>
 219
 220         * include/bits/stl_deque.h (_Deque_iterator): Constrain constructor
 221         for conversion to const_iterator.  Add defaulted copy ops.
 222         * libsupc++/new (bad_alloc): Add defaulted copy ops.
 223         * libsupc++/exception.h (exception): Add defaulted copy ops.
 224         * include/std/system_error (system_error): Add defaulted copy ops.
 225         * include/std/stdexcept (domain_error, invalid_argument)
 226         (length_error, out_of_range, range_error, overflow_error)
 227         (underflow_error): Add defaulted copy ops.
 228         * include/bits/stl_iterator.h (reverse_iterator): Add defaulted
 229         copy assignment.
 230         * include/bits/allocator.h (allocator): Add defaulted copy assignment.
 231         * include/ext/throw_allocator.h (condition_base): Add defaulted
 232         default and copy ctor and copy assignment.
 233
 234 2018-05-18  Jonathan Wakely  <jwakely@redhat.com>
 235
 236         PR libstdc++/85098
 237         * include/bits/regex.h [__cplusplus < 201703L] (basic_regex::icase)
 238         (basic_regex::nosubs, basic_regex::optimize, basic_regex::collate)
 239         (basic_regex::ECMAScript, basic_regex::basic, basic_regex::extended)
 240         (basic_regex::awk, basic_regex::grep, basic_regex::egrep): Add
 241         definitions.
 242         * include/bits/regex_automaton.h (_NFA::_M_insert_state): Adjust
 243         whitespace.
 244         * include/bits/regex_compiler.tcc (__INSERT_REGEX_MATCHER): Add
 245         braces around body of do-while.
 246         * testsuite/28_regex/basic_regex/85098.cc: New
 247
 248 2018-05-17  Jonathan Wakely  <jwakely@redhat.com>
 249
 250         PR libstdc++/85818
 251         * src/filesystem/path.cc (path::preferred_separator): Add used
 252         attribute.
 253         * testsuite/experimental/filesystem/path/preferred_separator.cc: New.
 254
 255         PR libstdc++/85812
 256         * libsupc++/cxxabi_init_exception.h (__cxa_free_exception): Declare.
 257         * libsupc++/exception_ptr.h (make_exception_ptr) [__cpp_exceptions]:
 258         Refactor to separate non-throwing and throwing implementations.
 259         [__cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI]: Deallocate the memory
 260         if constructing the object throws.
 261
 262 2018-05-15  Jonathan Wakely  <jwakely@redhat.com>
 263
 264         PR libstdc++/85749
 265         * include/bits/random.h (__detail::__is_seed_seq): New SFINAE helper.
 266         (linear_congruential_engine, mersenne_twister_engine)
 267         (subtract_with_carry_engine, discard_block_engine)
 268         (independent_bits_engine, shuffle_order_engine): Use __is_seed_seq to
 269         constrain function templates taking seed sequences.
 270         * include/bits/random.tcc (linear_congruential_engine::seed(_Sseq&))
 271         (mersenne_twister_engine::seed(_Sseq&))
 272         (subtract_with_carry_engine::seed(_Sseq&)): Change return types to
 273         match declarations.
 274         * include/ext/random (simd_fast_mersenne_twister_engine): Use
 275         __is_seed_seq to constrain function templates taking seed sequences.
 276         * include/ext/random.tcc (simd_fast_mersenne_twister_engine::seed):
 277         Change return type to match declaration.
 278         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
 279         New.
 280         * testsuite/26_numerics/random/independent_bits_engine/cons/
 281         seed_seq2.cc: New.
 282         * testsuite/26_numerics/random/linear_congruential_engine/cons/
 283         seed_seq2.cc: New.
 284         * testsuite/26_numerics/random/mersenne_twister_engine/cons/
 285         seed_seq2.cc: New.
 286         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
 287         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
 288         New.
 289         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/
 290         seed_seq2.cc: New.
 291         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/
 292         seed_seq2.cc: New.
 293
 294         PR libstdc++/83891
 295         * include/bits/fs_path.h (path::is_absolute()): Use same definition
 296         for all operating systems.
 297         * include/experimental/bits/fs_path.h (path::is_absolute()): Likewise.
 298         * testsuite/27_io/filesystem/path/query/is_absolute.cc: New.
 299         * testsuite/27_io/filesystem/path/query/is_relative.cc: Fix comment.
 300         * testsuite/experimental/filesystem/path/query/is_absolute.cc: New.
 301
 302         * testsuite/27_io/filesystem/path/decompose/extension.cc: Remove
 303         unused <vector> header.
 304         * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
 305         * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
 306         * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
 307         * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
 308         * testsuite/27_io/filesystem/path/query/has_relative_path.cc:
 309         Likewise.
 310         * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
 311         Likewise.
 312         * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
 313         * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
 314         * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
 315         * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
 316         * testsuite/experimental/filesystem/path/decompose/extension.cc:
 317         Likewise.
 318         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
 319         * testsuite/experimental/filesystem/path/query/has_extension.cc:
 320         Likewise.
 321         * testsuite/experimental/filesystem/path/query/has_filename.cc:
 322         Likewise.
 323         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
 324         Likewise.
 325         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
 326         Likewise.
 327         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
 328         Likewise.
 329         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
 330         Likewise.
 331         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
 332         Likewise.
 333         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
 334         * testsuite/experimental/filesystem/path/query/is_relative.cc:
 335         Likewise.
 336
 337         PR libstdc++/84159
 338         * include/bits/fs_path.h (path::operator/=, path::append): Construct
 339         temporary path before calling _M_append.
 340         (path::_M_append): Change parameter to path and implement C++17
 341         semantics.
 342         * testsuite/27_io/filesystem/path/append/path.cc: Add helper function
 343         and more examples from the standard.
 344         * testsuite/27_io/filesystem/path/append/source.cc: New.
 345         * testsuite/27_io/filesystem/path/decompose/filename.cc: Add comment.
 346         * testsuite/27_io/filesystem/path/nonmember/append.cc: New.
 347
 348         * include/std/variant (__gen_vtable_impl::__visit_invoke): Qualify
 349         __invoke to prevent ADL.
 350
 351 2018-05-14  Jonathan Wakely  <jwakely@redhat.com>
 352
 353         PR libstdc++/81256
 354         * include/bits/fstream.tcc (basic_filebuf::close): Do not swallow
 355         exceptions from _M_terminate_output().
 356         * include/std/fstream (basic_filebuf::~basic_filebuf): Swallow any
 357         exceptions from close().
 358         * testsuite/27_io/basic_filebuf/close/81256.cc: New.
 359
 360         * include/bits/valarray_array.h (__valarray_get_memory): Remove.
 361         (__valarray_get_storage): Call operator new directly. Remove ignored
 362         top-level restrict qualifier and add malloc attribute instead.
 363         (_Array<_Tp>::_Array(size_t)): Remove unused constructor.
 364
 365         PR libstdc++/67554
 366         * include/bits/valarray_array.h (_Array_copy_ctor<_Tp, true>)
 367         (_Array_copier<_Tp, true>): Do not pass null pointers to memcpy.
 368
 369         PR libstdc++/82966
 370         * include/bits/node_handle.h (_Node_handle_common::_M_swap): Use value
 371         instead of type.
 372         * testsuite/23_containers/set/modifiers/node_swap.cc: New.
 373
 374 2018-05-13  Ville Voutilainen  <ville.voutilainen@gmail.com>
 375
 376         PR libstdc++/80165
 377         * testsuite/20_util/variant/80165.cc: New.
 378
 379 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
 380
 381         * doc/xml/faq.xml: Link to C++17 status. Add note to outdated answer.
 382         * doc/xml/manual/debug_mode.xml: Add array and forward_list to list
 383         of C++11 containers with Debug Mode support.
 384         * doc/xml/manual/using.xml: Document Dual ABI for ios_base::failure.
 385         * doc/html/*: Regenerate.
 386
 387 2018-05-10  Jason Merrill  <jason@redhat.com>
 388
 389         * include/bits/regex_compiler.h (_S_cache_size): Change from
 390         function to variable.
 391
 392 2018-05-10  Edward Smith-Rowland  <3dw4rd@verizon.net>
 393
 394         PR libstdc++/83140 - assoc_legendre returns negated value when m is odd
 395         * include/tr1/legendre_function.tcc (__assoc_legendre_p): Add __phase
 396         argument defaulted to +1.  Doxy comments on same.
 397         * testsuite/special_functions/02_assoc_legendre/
 398         check_value.cc: Regen.
 399         * testsuite/tr1/5_numerical_facilities/special_functions/
 400         02_assoc_legendre/check_value.cc: Regen.
 401
 402 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
 403
 404         PR libstdc++/85729
 405         * include/bits/c++config.h (__replacement_assert): Add linkage
 406         specification.
 407         * include/bits/std_abs.h: Add comment to closing brace of block.
 408         * include/c_global/cstddef: Add linkage specification.
 409         * include/c_global/cstring: Likewise.
 410         * include/c_global/cwchar: Likewise.
 411
 412 2018-05-09  François Dumont  <fdumont@gcc.gnu.org>
 413
 414         * include/debug/safe_iterator.h (_Safe_iterator<>::_M_constant()):
 415         Rename in...
 416         (_Safe_iterator<>::_S_constant()): ...that.
 417         * include/debug/safe_local_iterator.h
 418         (_Safe_local_iterator<>::_M_constant()): Rename in...
 419         (_Safe_local_iterator<>::_S_constant()): ...that.
 420         * include/debug/formatter.h: Remove bits/cpp_type_traits.h include.
 421         (_Iterator_state::__rbegin): New.
 422         (_Iterator_state::__rmiddle): New.
 423         (_Iterator_state::__rend): New.
 424         (_Parameter::_Parameter(const _Safe_iterator<>&, const char*,
 425         _Is_iterator)): Use _Safe_iterator<>::_S_constant. Grab normal underlying
 426         iterator type.
 427         (_Parameter::_Parameter(const _Safe_local_iterator<>&, const char*,
 428         _Is_iterator)): Likewise.
 429         (_Parameter::_S_reverse_state(_Iterator_state)): New.
 430         (_Parameter(__gnu_cxx::__normal_iterator<> const&, const char*,
 431         _Is_iterator)): New.
 432         (_Parameter(std::reverse_iterator<> const&, const char*,
 433         _Is_iterator)): New.
 434         (_Parameter(std::reverse_iterator<_Safe_iterator<>> const&,
 435         const char*, _Is_iterator)): New.
 436         (_Parameter(std::move_iterator<> const&, const char*, _Is_iterator):
 437         New.
 438         (_Parameter(std::move_iterator<_Safe_iterator<>> const&, const char*,
 439         _Is_iterator)): New.
 440         * testsuite/24_iterators/move_iterator/debug_neg.cc: New.
 441         * testsuite/24_iterators/normal_iterator/debug_neg.cc: New.
 442         * testsuite/24_iterators/reverse_iterator/debug_neg.cc: New.
 443
 444 2018-05-09  Jonathan Wakely  <jwakely@redhat.com>
 445
 446         * include/bits/std_function.h (_Base_manager::_M_get_pointer):
 447         Use constexpr if in C++17 mode.
 448         (_Base_manager::_M_clone(_Any_data&, const _Any_data&, true_type)):
 449         Copy from const object.
 450         * testsuite/20_util/function/cons/non_copyconstructible.cc: New.
 451
 452 2018-05-08  François Dumont  <fdumont@gcc.gnu.org>
 453
 454         * src/c++11/debug.cc [_GLIBCXX_HAVE_EXECINFO_H]: Include execinfo.h.
 455         [_GLIBCXX_HAVE_EXECINFO_H](_Error_formatter::_M_error): Render
 456         backtrace.
 457
 458         * include/debug/macros.h (__glibcxx_check_valid_range_at): New.
 459         * include/debug/functions.h (__check_valid_range): Use latter.
 460         * include/debug/macros.h (__glibcxx_check_valid_constructor_range): New,
 461         use latter.
 462         * include/debug/deque
 463         (deque::deque<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
 464         * include/debug/forward_list
 465         (forward_list::forward_list<_Iter>(_Iter, _Iter, const _Alloc&)):
 466         Likewise.
 467         * include/debug/list
 468         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
 469         * include/debug/list
 470         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
 471         * include/debug/map.h
 472         (map::map<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
 473         (map::map<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
 474         Likewise.
 475         * include/debug/multimap.h
 476         (multimap::multimap<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
 477         (multimap::multimap<_Iter>(_Iter, _Iter, const _Compare&,
 478         const _Alloc&)): Likewise.
 479         * include/debug/set.h
 480         (set::set<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
 481         (set::set<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
 482         Likewise.
 483         * include/debug/multiset.h
 484         (multiset::multiset<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
 485         (multiset::multiset<_Iter>(_Iter, _Iter, const _Compare&,
 486         const _Alloc&)): Likewise.
 487         * include/debug/string
 488         (basic_string::basic_string<_Iter>(_Iter, _Iter, const _Alloc&)):
 489         Likewise.
 490         * include/debug/unordered_map
 491         (unordered_map::unordered_map<_Iter>(_Iter, _Iter, const _Alloc&)):
 492         Likewise.
 493         (unordered_multimap::unordered_multimap<_Iter>(_Iter, _Iter,
 494         const _Alloc&)): Likewise.
 495         * include/debug/unordered_set
 496         (unordered_set::unordered_set<_Iter>(_Iter, _Iter, const _Alloc&)):
 497         Likewise.
 498         (unordered_multiset::unordered_multiset<_Iter>(_Iter, _Iter,
 499         const _Alloc&)): Likewise.
 500         * include/debug/vector
 501         (vector::vector<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
 502
 503         * include/debug/formatter.h (_Error_formatter::_M_function): New.
 504         (_Error_formatter(const char*, unsigned int)): Adapt.
 505         (_Error_formatter::_M_at): Rename in...
 506         (_Error_formatter::_S_at): ...that and adapt.
 507         * include/debug/macros.h (_GLIBCXX_DEBUG_VERIFY_AT_F): New.
 508         (_GLIBCXX_DEBUG_VERIFY_AT, _GLIBCXX_DEBUG_VERIFY): Adapt.
 509         * src/c++11/debug.cc (_Error_formatter::_M_error): Render _M_function
 510         when available.
 511
 512 2018-05-08  Jonathan Wakely  <jwakely@redhat.com>
 513
 514         * include/bits/regex_automaton.h (_NFA_base::_M_paren_stack, _NFA):
 515         Use normal std::vector even in Debug Mode.
 516
 517         PR libstdc++/85672
 518         * include/Makefile.am [!ENABLE_FLOAT128]: Change c++config.h entry
 519         to #undef _GLIBCXX_USE_FLOAT128 instead of defining it to zero.
 520         * include/Makefile.in: Regenerate.
 521         * include/bits/c++config (_GLIBCXX_USE_FLOAT128): Move definition
 522         within conditional block.
 523
 524 2018-05-07  Jonathan Wakely  <jwakely@redhat.com>
 525
 526         * doc/xml/manual/using.xml (table.cmd_options): Document that the
 527         C++17 Filesystem implementation also needs -lstdc++fs.
 528
 529         PR libstdc++/85671
 530         * include/bits/fs_path.h (operator/): Permit copy elision.
 531         * include/experimental/bits/fs_path.h (operator/): Likewise.
 532
 533 2018-05-07  Edward Smith-Rowland  <3dw4rd@verizon.net>
 534
 535         Moar PR libstdc++/80506
 536         * include/bits/random.tcc (gamma_distribution::__generate_impl()):
 537         Fix magic number used in loop condition.
 538
 539 2018-05-04  Jonathan Wakely  <jwakely@redhat.com>
 540
 541         PR libstdc++/85642 fix is_nothrow_default_constructible<optional<T>>
 542         * include/std/optional (_Optional_payload): Add noexcept to default
 543         constructor. Re-indent.
 544         (_Optional_payload<_Tp, true, true, true>): Likewise. Add noexcept to
 545         constructor for copying disengaged payloads.
 546         (_Optional_payload<_Tp, true, false, true>): Likewise.
 547         (_Optional_payload<_Tp, true, true, false>): Likewise.
 548         (_Optional_payload<_Tp, true, false, false>): Likewise.
 549         * testsuite/20_util/optional/cons/85642.cc: New.
 550         * testsuite/20_util/optional/cons/value_neg.cc: Adjust dg-error lines.
 551
 552 2018-05-03  Jonathan Wakely  <jwakely@redhat.com>
 553
 554         PR libstdc++/82644
 555         * include/tr1/cmath [__STRICT_ANSI__] (hypergf, hypergl, hyperg): Use
 556         inline definitions instead of using-declarations.
 557         [__STRICT_ANSI__] (conf_hypergf, conf_hypergl, conf_hyperg): Likewise.
 558         * testsuite/tr1/5_numerical_facilities/special_functions/
 559         07_conf_hyperg/compile_cxx17.cc: New.
 560         * testsuite/tr1/5_numerical_facilities/special_functions/
 561         17_hyperg/compile_cxx17.cc: New.
 562
 563         PR libstdc++/84769
 564         * include/std/variant (visit): Qualify std::get call.
 565
 566         PR libstdc++/85632 use uintmax_t for arithmetic
 567         * src/filesystem/ops.cc (experimental::filesystem::space): Perform
 568         arithmetic in result type.
 569         * src/filesystem/std-ops.cc (filesystem::space): Likewise.
 570         * testsuite/27_io/filesystem/operations/space.cc: Check total capacity
 571         is greater than free space.
 572         * testsuite/experimental/filesystem/operations/space.cc: New.
 573
 574         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc: New.
 575         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
 576         New.
 577         * testsuite/20_util/remove_cvref/value.cc: New.
 578         * testsuite/20_util/remove_cvref/value_ext.cc: New.
 579
 580         PR libstdc++/84087 LWG DR 2268 basic_string default arguments
 581         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI=1]
 582         (append(const basic_string&, size_type, size_type)
 583         (assign(const basic_string&, size_type, size_type)
 584         (insert(size_type, const basic_string&, size_type, size_type)
 585         (replace(size_type,size_type,const basic_string&,size_type,size_type)
 586         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
 587         Add default arguments (LWG 2268).
 588         [_GLIBCXX_USE_CXX11_ABI=0]
 589         (append(const basic_string&, size_type, size_type)
 590         (assign(const basic_string&, size_type, size_type)
 591         (insert(size_type, const basic_string&, size_type, size_type)
 592         (replace(size_type,size_type,const basic_string&,size_type,size_type)
 593         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
 594         Likewise.
 595         * testsuite/21_strings/basic_string/dr2268.cc: New test.
 596
 597         PR libstdc++/84535
 598         * include/std/thread (thread::__not_same): New SFINAE helper.
 599         (thread::thread(_Callable&&, _Args&&...)): Add SFINAE constraint that
 600         first argument is not a std::thread. Add static assertion to check
 601         INVOKE expression is valid.
 602         (thread::thread(thread&), thread::thread(const thread&&)): Remove.
 603         (thread::_Invoke::_M_invoke, thread::_Invoke::operator()): Use
 604         __invoke_result for return types and remove exception specifications.
 605         * testsuite/30_threads/thread/cons/84535.cc: New.
 606
 607         * include/std/future (__async_result_of): Use __invoke_result instead
 608         of result_of.
 609
 610         * include/std/any (any_cast): Use __remove_cvref_t.
 611         * include/std/tuple (__make_tuple): Likewise.
 612         * include/std/type_traits (__remove_cvref_t): Define.
 613         (__result_of_memobj, __result_of_memfun): Use __remove_cvref_t.
 614         [__cplusplus > 201703L] (remove_cvref, remove_cvref_t): Define.
 615         * include/std/variant (__erased_hash): Use __remove_cvref_t.
 616
 617 2018-05-02  François Dumont  <fdumont@gcc.gnu.org>
 618
 619         * include/bits/deque.tcc (deque<>::_M_assign_aux): Cast to void to
 620         ensure overloaded comma not used.
 621         * include/bits/list.tcc (list<>::_M_assign_dispatch): Likewise.
 622         * include/bits/vector.tcc (vector<>::_M_assign_aux): Likewise.
 623         * include/bits/stl_bvector.h (vector<bool>::_M_assign_aux): Likewise.
 624         * testsuite/23_containers/deque/modifiers/assign/1.cc: New.
 625         * testsuite/23_containers/list/modifiers/assign/1.cc: New.
 626         * testsuite/23_containers/vector/bool/modifiers/assign/1.cc: New.
 627         * testsuite/23_containers/vector/modifiers/assign/1.cc: New.
 628
 629 2018-05-02  Jonathan Wakely  <jwakely@redhat.com>
 630
 631         PR libstdc++/68197
 632         * include/bits/ios_base.h (ios_base::iword, ios_base::pword): Cast
 633         indices to unsigned.
 634         * src/c++11/ios.cc (ios_base::_M_grow_words): Treat negative indices
 635         as failure. Refactor error handling.
 636         * testsuite/27_io/ios_base/storage/68197.cc: New.
 637
 638         PR libstdc++/57997
 639         PR libstdc++/83860
 640         * include/bits/gslice_array.h (gslice_array): Define default
 641         constructor as deleted, as per C++11 standard.
 642         * include/bits/mask_array.h (mask_array): Likewise.
 643         * include/bits/slice_array.h (slice_array): Likewise.
 644         * include/bits/valarray_after.h (_GBase, _GClos, _IBase, _IClos): Move
 645         to namespace __detail.
 646         (_GBase::_M_expr, _IBase::_M_expr): Use _ValArrayRef for type of data
 647         members.
 648         * include/bits/valarray_before.h (_ValArrayRef): New helper for type
 649         of data members in closure objects.
 650         (_FunBase, _ValFunClos, _RefFunClos, _UnBase, _UnClos, _BinBase)
 651         (_BinBase2, _BinBase1, _BinClos, _SBase, _SClos): Move to namespace
 652         __detail.
 653         (_FunBase::_M_expr, _UnBase::_M_expr, _BinBase::_M_expr1)
 654         (_BinBase::_M_expr2, _BinBase2::_M_expr1, _BinBase1::_M_expr2)
 655         (_SBase::_M_expr): Use _ValArrayRef for type of data members.
 656         * include/std/valarray (_UnClos, _BinClos, _SClos, _GClos, _IClos)
 657         (_ValFunClos, _RefFunClos): Move to namespace __detail and add
 658         using-declarations to namespace std.
 659         * testsuite/26_numerics/valarray/83860.cc: New.
 660
 661         * testsuite/backward/strstream_move.cc: Remove duplicate function
 662         call.
 663
 664         PR libstdc++/69608
 665         * include/backward/strstream (strstreambuf): Define move constructor
 666         and move assignment operator.
 667         (istrstream, ostrstream, strstream): Likewise.
 668         * testsuite/backward/strstream_move.cc: New.
 669
 670 2018-05-01  Tulio Magno Quites Machado Filho  <tuliom@linux.vnet.ibm.com>
 671
 672         PR libstdc++/84654
 673         * acinclude.m4: Set ENABLE_FLOAT128 instead of _GLIBCXX_USE_FLOAT128.
 674         * config.h.in: Remove references to _GLIBCXX_USE_FLOAT128.
 675         * configure: Regenerate.
 676         * include/Makefile.am: Replace the value of _GLIBCXX_USE_FLOAT128
 677         based on ENABLE_FLOAT128.
 678         * include/Makefile.in: Regenerate.
 679         * include/bits/c++config: Define _GLIBCXX_USE_FLOAT128.
 680         [!defined(__FLOAT128__) && !defined(__SIZEOF_FLOAT128__)]: Undefine
 681         _GLIBCXX_USE_FLOAT128.
 682
 683 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
 684
 685         * configure: Regenerated.
 686
 687 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
 688
 689         * configure: Regenerated.
 690
 691 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
 692             Jakub Jelinek  <jakub@redhat.com>
 693
 694         PR libstdc++/85442
 695         * src/c++11/Makefile.am: Don't generate debuginfo again for
 696         cxx11-ios_failure-lt.s and cxx11-ios_failure.s files.
 697         * src/c++11/Makefile.in: Regenerate.
 698
 699 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
 700
 701         PR libstdc++/84442
 702         * testsuite/30_threads/thread/cons/terminate.cc
 703         [!_GLIBCXX_USE_C99_STDLIB] : Use _exit or std::exit instead of _Exit.
 704
 705 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
 706
 707         PR jit/85384
 708         * configure: Regenerate.
 709
 710 2018-04-16  Jonathan Wakely  <jwakely@redhat.com>
 711
 712         * testsuite/experimental/filesystem/file_status/1.cc: Add
 713         -DUSE_FILESYSTEM_TS to dg-options.
 714         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
 715         Likewise.
 716         * testsuite/experimental/filesystem/iterators/pop.cc: Likewise.
 717         * testsuite/experimental/filesystem/iterators/
 718         recursive_directory_iterator.cc: Likewise.
 719         * testsuite/experimental/filesystem/operations/absolute.cc: Likewise.
 720         * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
 721         * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
 722         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
 723         * testsuite/experimental/filesystem/operations/create_directories.cc:
 724         Likewise.
 725         * testsuite/experimental/filesystem/operations/create_directory.cc:
 726         Likewise.
 727         * testsuite/experimental/filesystem/operations/create_symlink.cc:
 728         Likewise.
 729         * testsuite/experimental/filesystem/operations/current_path.cc:
 730         Likewise.
 731         * testsuite/experimental/filesystem/operations/equivalent.cc: Likewise.
 732         * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
 733         * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
 734         * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
 735         * testsuite/experimental/filesystem/operations/last_write_time.cc:
 736         Likewise.
 737         * testsuite/experimental/filesystem/operations/permissions.cc:
 738         Likewise.
 739         * testsuite/experimental/filesystem/operations/read_symlink.cc:
 740         Likewise.
 741         * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
 742         * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
 743         * testsuite/experimental/filesystem/operations/status.cc: Likewise.
 744         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
 745         Likewise.
 746         * testsuite/experimental/filesystem/path/append/path.cc: Likewise.
 747         * testsuite/experimental/filesystem/path/assign/assign.cc: Likewise.
 748         * testsuite/experimental/filesystem/path/assign/copy.cc: Likewise.
 749         * testsuite/experimental/filesystem/path/compare/compare.cc: Likewise.
 750         * testsuite/experimental/filesystem/path/compare/path.cc: Likewise.
 751         * testsuite/experimental/filesystem/path/compare/strings.cc: Likewise.
 752         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
 753         * testsuite/experimental/filesystem/path/concat/strings.cc: Likewise.
 754         * testsuite/experimental/filesystem/path/construct/copy.cc: Likewise.
 755         * testsuite/experimental/filesystem/path/construct/default.cc:
 756         Likewise.
 757         * testsuite/experimental/filesystem/path/construct/locale.cc: Likewise.
 758         * testsuite/experimental/filesystem/path/construct/range.cc: Likewise.
 759         * testsuite/experimental/filesystem/path/construct/string_view.cc:
 760         Likewise.
 761         * testsuite/experimental/filesystem/path/decompose/extension.cc:
 762         Likewise.
 763         * testsuite/experimental/filesystem/path/decompose/filename.cc:
 764         Likewise.
 765         * testsuite/experimental/filesystem/path/decompose/parent_path.cc:
 766         Likewise.
 767         * testsuite/experimental/filesystem/path/decompose/relative_path.cc:
 768         Likewise.
 769         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
 770         Likewise.
 771         * testsuite/experimental/filesystem/path/decompose/root_name.cc:
 772         Likewise.
 773         * testsuite/experimental/filesystem/path/decompose/root_path.cc:
 774         Likewise.
 775         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
 776         * testsuite/experimental/filesystem/path/generic/generic_string.cc:
 777         Likewise.
 778         * testsuite/experimental/filesystem/path/itr/traversal.cc: Likewise.
 779         * testsuite/experimental/filesystem/path/modifiers/clear.cc: Likewise.
 780         * testsuite/experimental/filesystem/path/modifiers/make_preferred.cc:
 781         Likewise.
 782         * testsuite/experimental/filesystem/path/modifiers/remove_filename.cc:
 783         Likewise.
 784         * testsuite/experimental/filesystem/path/modifiers/replace_extension.cc:
 785         Likewise.
 786         * testsuite/experimental/filesystem/path/modifiers/replace_filename.cc:
 787         Likewise.
 788         * testsuite/experimental/filesystem/path/modifiers/swap.cc: Likewise.
 789         * testsuite/experimental/filesystem/path/native/string.cc: Likewise.
 790         * testsuite/experimental/filesystem/path/nonmember/hash_value.cc:
 791         Likewise.
 792         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
 793         * testsuite/experimental/filesystem/path/query/has_extension.cc:
 794         Likewise.
 795         * testsuite/experimental/filesystem/path/query/has_filename.cc:
 796         Likewise.
 797         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
 798         Likewise.
 799         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
 800         Likewise.
 801         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
 802         Likewise.
 803         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
 804         Likewise.
 805         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
 806         Likewise.
 807         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
 808         * testsuite/experimental/filesystem/path/query/is_relative.cc:
 809         Likewise.
 810
 811 2018-04-13  Jonathan Wakely  <jwakely@redhat.com>
 812
 813         * src/c++11/Makefile.am: Fix sed command.
 814         * src/c++11/Makefile.in: Regenerate.
 815
 816         * src/c++11/Makefile.am: Rewrite sed rule to be less fragile and to
 817         handle mangled names starting with double underscores on darwin.
 818         * src/c++11/Makefile.in: Regenerate.
 819
 820 2018-04-12  Jonathan Wakely  <jwakely@redhat.com>
 821
 822         * src/c++11/Makefile.am: Fix comment.
 823         * src/c++11/Makefile.in: Regenerate.
 824         * src/c++11/cxx11-ios_failure.cc: Fix comment.
 825         * src/c++98/ios_failure.cc: Likewise.
 826
 827         * src/c++11/ios.cc: Remove redundant macro definition.
 828
 829 2018-04-11  Jonathan Wakely  <jwakely@redhat.com>
 830
 831         * doc/xml/manual/abi.xml: Document header locations in recent
 832         releases.
 833         * doc/xml/manual/evolution.xml: Add API changes since GCC 5.
 834         * doc/xml/manual/spine.xml: Update copyright years.
 835         * doc/xml/manual/strings.xml: Adjust tolower example to avoid
 836         undefined behaviour.
 837         * doc/xml/manual/test.xml: Update outdated notes on VERIFY in tests.
 838         * doc/html/*: Regenerate.
 839
 840 2018-04-10  Jonathan Wakely  <jwakely@redhat.com>
 841
 842         * doc/xml/faq.xml: Update links to archived copy of SGI STL docs.
 843         * doc/xml/manual/backwards_compatibility.xml: Likewise.
 844         * doc/xml/manual/containers.xml: Likewise.
 845         * doc/xml/manual/debug_mode.xml: Likewise.
 846         * doc/xml/manual/extensions.xml: Likewise.
 847         * doc/xml/manual/policy_data_structures_biblio.xml: Likewise.
 848         * doc/xml/manual/using.xml: Likewise.
 849         * doc/xml/manual/utilities.xml: Likewise.
 850
 851         PR libstdc++/85222
 852         * src/c++11/Makefile.am [ENABLE_DUAL_ABI]: Add special rules for
 853         cxx11-ios_failure.cc to rewrite type info for __ios_failure.
 854         * src/c++11/Makefile.in: Regenerate.
 855         * src/c++11/cxx11-ios_failure.cc (__ios_failure, __iosfail_type_info):
 856         New types.
 857         [_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
 858         * src/c++11/ios.cc (__throw_ios_failure): Remove definition.
 859         * src/c++98/ios_failure.cc (__construct_ios_failure)
 860         (__destroy_ios_failure, is_ios_failure_handler): New functions.
 861         [!_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
 862         * testsuite/27_io/ios_base/failure/dual_abi.cc: New.
 863         * testsuite/27_io/basic_ios/copyfmt/char/1.cc: Revert changes to
 864         handler types, to always catch std::ios_base::failure.
 865         * testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
 866         * testsuite/27_io/basic_istream/extractors_arithmetic/char/
 867         exceptions_failbit.cc: Likewise.
 868         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
 869         exceptions_failbit.cc: Likewise.
 870         * testsuite/27_io/basic_istream/extractors_other/char/
 871         exceptions_null.cc: Likewise.
 872         * testsuite/27_io/basic_istream/extractors_other/wchar_t/
 873         exceptions_null.cc: Likewise.
 874         * testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
 875         * testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
 876         * testsuite/27_io/basic_ostream/inserters_other/char/
 877         exceptions_null.cc: Likewise.
 878         * testsuite/27_io/basic_ostream/inserters_other/wchar_t/
 879         exceptions_null.cc: Likewise.
 880         * testsuite/27_io/ios_base/storage/2.cc: Likewise.
 881
 882 2018-04-05  Jonathan Wakely  <jwakely@redhat.com>
 883
 884         * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Qualify
 885         __get calls to avoid ADL and avoid ambiguity due to Clang bug.
 886
 887 2018-04-03  Jonathan Wakely  <jwakely@redhat.com>
 888
 889         PR libstdc++/85183
 890         * include/std/variant (_Move_assign_base::operator=): Fix incorrect
 891         value categories.
 892         * testsuite/20_util/variant/85183.cc: New.
 893
 894 2018-03-26  Jonathan Wakely  <jwakely@redhat.com>
 895
 896         * include/std/variant (__get): Qualify calls to avoid ADL.
 897         (__select_index): Adjust whitespace.
 898         (variant): Add using-declaration to workaround Clang bug.
 899
 900 2018-03-22  Jonathan Wakely  <jwakely@redhat.com>
 901
 902         PR libstdc++/85040
 903         * include/bits/stl_function.h (greater::__not_overloaded)
 904         (less::__not_overloaded, greater_equal::__not_overloaded)
 905         (less_equal::__not_overloaded): Fix ambiguous specializations.
 906         * testsuite/20_util/function_objects/comparisons_pointer.cc: Add
 907         tests for type with overloaded operators.
 908
 909 2018-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 910
 911         PR libstdc++/77691
 912         * testsuite/experimental/memory_resource/resource_adaptor.cc:
 913         xfail execution on 32-bit Solaris/x86.
 914
 915 2018-03-21  Jonathan Wakely  <jwakely@redhat.com>
 916
 917         * testsuite/20_util/function_objects/comparisons_pointer.cc: Use
 918         VERIFY instead of assert.
 919         * testsuite/20_util/hash/84998.cc: New test.
 920         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc: New
 921         copy of test adjusted for Debug Mode.
 922         * testsuite/23_containers/vector/cons/destructible_neg.cc: Do not run
 923         test in Debug Mode.
 924
 925 2018-03-20  François Dumont  <fdumont@gcc.gnu.org>
 926
 927         PR libstdc++/84998
 928         * include/bits/stl_bvector.h: Fix std::hash friend declaration.
 929         * include/std/bitset: Likewise.
 930         * include/bits/stl_map.h (std::map<>): Fix _Rb_tree_merge_helper friend
 931         declaration.
 932         * include/bits/stl_multimap.h (std::multimap<>): Likewise.
 933         * include/bits/stl_multiset.h (std::multiset<>): Likewise.
 934         * include/bits/stl_set.h (std::set<>): Likewise.
 935         * include/bits/unordered_map.h (std::unordered_map<>): Fix
 936         _Hash_merge_helper friend declaration.
 937         (std::unordered_multimap<>): Likewise.
 938         * include/bits/unordered_set.h (std::unordered_set<>): Likewise.
 939         (std::unordered_multiset<>): Likewise.
 940
 941 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
 942
 943         * doc/xml/api.xml: www.fsf.org has moved to https. Also omit
 944         trailing slash for domain level link.
 945         * doc/xml/faq.xml: Ditto.
 946         * doc/xml/manual/appendix_free.xml (software): Ditto.
 947         * doc/xml/manual/intro.xml: Ditto.
 948         * doc/xml/manual/spine.xml: Ditto.
 949         * doc/xml/spine.xml: Ditto.
 950
 951 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
 952
 953         * doc/xml/manual/documentation_hacking.xml: Adjust link to
 954         docbook.org.
 955
 956 2018-03-17  Jonathan Wakely  <jwakely@redhat.com>
 957
 958         * testsuite/20_util/function_objects/comparisons_pointer.cc: Adjust
 959         to compile as C++98.
 960
 961 2018-03-14  Jonathan Wakely  <jwakely@redhat.com>
 962
 963         PR libstdc++/78420
 964         * include/bits/stl_function.h (greater<_Tp*>, less<_Tp*>)
 965         (greater_equal<_Tp*>, less_equal<_Tp>*): Add partial specializations
 966         to ensure total order for pointers.
 967         (greater<void>, less<void>, greater_equal<void>, less_equal<void>):
 968         Add operator() overloads for pointer arguments and make generic
 969         overloads dispatch to new _S_cmp functions when comparisons would
 970         use built-in operators for pointers.
 971         * testsuite/20_util/function_objects/comparisons_pointer.cc: New.
 972
 973 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
 974
 975         PR libstdc++/84773
 976         PR libstdc++/83662
 977         * crossconfig.m4: Check for aligned_alloc etc. on freebsd and mingw32.
 978         * configure: Regenerate.
 979         * include/c_global/cstdlib [_GLIBCXX_HAVE_ALIGNED_ALLOC]
 980         (aligned_alloc): Add using-declaration.
 981         * testsuite/18_support/aligned_alloc/aligned_alloc.cc: New test.
 982
 983 2018-03-09  François Dumont  <fdumont@gcc.gnu.org>
 984
 985         * python/libstdcxx/v6/printers.py (build_libstdcxx_dictionary):
 986         Fix std::_Fwd_list_iterator and std::_Fwd_list_const_iterator printers
 987         registration.
 988
 989 2018-03-09  Jonathan Wakely  <jwakely@redhat.com>
 990
 991         PR libstdc++/84769
 992         * include/std/variant (get<_Tp, _Types...>, get_if<_Tp, _Types...>):
 993         Qualify calls to get<_Np, Types...> and get_if<_Np, _Types...>.
 994
 995         src/filesystem/ops.cc (create_dir): Pass error_code to is_directory.
 996         src/filesystem/std-ops.cc (create_dir): Likewise.
 997
 998 2018-03-08  François Dumont  <fdumont@gcc.gnu.org>
 999
1000         * python/libstdcxx/v6/printers.py (NodeIteratorPrinter): New.
1001         (StdListIteratorPrinter): Inherit from latter.
1002         (StdFwdListIteratorPrinter): New, inherit from latter.
1003         (StdDebugIteratorPrinter.to_string): Use non-debug iterator printer
1004         when iterator has no associated container.
1005         (build_libstdcxx_dictionary): Add __gnu_cxx::_Fwd_list_iterator and
1006         __gnu_cxx::_Fwd_list_const_iterator printers. Remove __norm namespace
1007         registrations.
1008         * testsuite/libstdc++-prettyprinters/debug.cc: Adapt.
1009         * testsuite/libstdc++-prettyprinters/debug_cxx11.cc: Adapt.
1010
1011 2018-03-06  Ville Voutilainen  <ville.voutilainen@gmail.com>
1012
1013         PR libstdc++/84601
1014         * include/std/optional (_Optional_payload): Split into multiple
1015         specializations that can handle different cases of trivial or
1016         non-trivial assignment operators.
1017         * testsuite/20_util/optional/84601.cc: New.
1018         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
1019
1020 2018-03-02  Jonathan Wakely  <jwakely@redhat.com>
1021
1022         PR libstdc++/84671
1023         * include/bits/parse_numbers.h (_Number_help): Add partial
1024         specialization to handle digit separators. Adjust partial
1025         specialization for recursion temrination to require _Pow == 1ULL.
1026         * testsuite/20_util/duration/literals/84671.cc: New
1027
1028 2018-02-27  Ville Voutilainen  <ville.voutilainen@gmail.com>
1029
1030         Implement the missing bits of LWG 2769
1031         * include/std/any (any_cast(const any&)): Add static_assert.
1032         (any_cast(any&)): Likewise.
1033         (any_cast(any&&)): Likewise, and remove the handling
1034         for copyable-but-not-movable type.
1035         * testsuite/20_util/any/misc/any_cast.cc: Adjust.
1036         * testsuite/20_util/any/misc/any_cast_neg.cc: Likewise, and
1037         add new tests.
1038
1039 2018-02-23  Jonathan Wakely  <jwakely@redhat.com>
1040
1041         PR libstdc++/84532
1042         * include/std/thread (thread::__make_invoker): Construct tuple
1043         directly instead of using make_tuple.
1044         * testsuite/30_threads/async/84532.cc: New.
1045         * testsuite/30_threads/thread/84532.cc: New.
1046
1047 2018-02-20  François Dumont  <fdumont@gcc.gnu.org>
1048
1049         * include/ext/aligned_buffer.h [_GLIBCXX_INLINE_VERSION]
1050         (template<> __aligned_buffer): Define as __aligned_membuf alias.
1051
1052 2018-02-19  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
1053
1054         PR target/84148
1055         * configure: Regenerate.
1056
1057 2018-02-15  Jonathan Wakely  <jwakely@redhat.com>
1058
1059         PR libstdc++/81797
1060         * configure.ac (INCLUDE_DIR_NOTPARALLEL): Define.
1061         * configure: Regenerate.
1062         * include/Makefile.am (INCLUDE_DIR_NOTPARALLEL): Add .NOTPARALLEL when
1063         defined.
1064         * include/Makefile.in: Regenerate.
1065
1066 2018-01-29  Jonathan Wakely  <jwakely@redhat.com>
1067
1068         PR libstdc++/83833
1069         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
1070         Add -ffloat-store to options for m68k and ia32.
1071
1072         * doc/xml/faq.xml: Update copyright years.
1073         * doc/html/*: Regenerate.
1074
1075         PR libstdc++/83658
1076         * include/std/any (any::__do_emplace): Only set _M_manager after
1077         constructing the contained object.
1078         * testsuite/20_util/any/misc/any_cast_neg.cc: Adjust dg-error line.
1079         * testsuite/20_util/any/modifiers/83658.cc: New test.
1080
1081 2018-01-25  Jonathan Wakely  <jwakely@redhat.com>
1082
1083         PR libstdc++/81076
1084         * include/c_global/cstddef (__byte_operand): Define primary template.
1085         * testsuite/18_support/byte/81076.cc: New test.
1086
1087 2018-01-19  Christophe Lyon  <christophe.lyon@linaro.org>
1088
1089         * testsuite/ext/special_functions/airy_ai/check_nan.cc: Fix
1090         dg-options and dg-add-options order.
1091         * testsuite/ext/special_functions/airy_bi/check_nan.cc: Likewise.
1092         * testsuite/ext/special_functions/conf_hyperg/check_nan.cc:
1093         Likewise.
1094         * testsuite/ext/special_functions/hyperg/check_nan.cc: Likewise.
1095         * testsuite/special_functions/01_assoc_laguerre/check_nan.cc:
1096         Likewise.
1097         * testsuite/special_functions/02_assoc_legendre/check_nan.cc:
1098         Likewise.
1099         * testsuite/special_functions/03_beta/check_nan.cc: Likewise.
1100         * testsuite/special_functions/04_comp_ellint_1/check_nan.cc:
1101         Likewise.
1102         * testsuite/special_functions/05_comp_ellint_2/check_nan.cc:
1103         Likewise.
1104         * testsuite/special_functions/06_comp_ellint_3/check_nan.cc:
1105         Likewise.
1106         * testsuite/special_functions/06_comp_ellint_3/pr66689.cc:
1107         Likewise.
1108         * testsuite/special_functions/07_cyl_bessel_i/check_nan.cc:
1109         Likewise.
1110         * testsuite/special_functions/08_cyl_bessel_j/check_nan.cc:
1111         Likewise.
1112         * testsuite/special_functions/09_cyl_bessel_k/check_nan.cc:
1113         Likewise.
1114         * testsuite/special_functions/10_cyl_neumann/check_nan.cc:
1115         Likewise.
1116         * testsuite/special_functions/11_ellint_1/check_nan.cc: Likewise.
1117         * testsuite/special_functions/12_ellint_2/check_nan.cc: Likewise.
1118         * testsuite/special_functions/13_ellint_3/check_nan.cc: Likewise.
1119         * testsuite/special_functions/13_ellint_3/pr66689.cc: Likewise.
1120         * testsuite/special_functions/14_expint/check_nan.cc: Likewise.
1121         * testsuite/special_functions/15_hermite/check_nan.cc: Likewise.
1122         * testsuite/special_functions/16_laguerre/check_nan.cc: Likewise.
1123         * testsuite/special_functions/17_legendre/check_nan.cc: Likewise.
1124         * testsuite/special_functions/18_riemann_zeta/check_nan.cc:
1125         Likewise.
1126         * testsuite/special_functions/19_sph_bessel/check_nan.cc:
1127         Likewise.
1128         * testsuite/special_functions/20_sph_legendre/check_nan.cc:
1129         Likewise.
1130         * testsuite/special_functions/21_sph_neumann/check_nan.cc:
1131         Likewise.
1132
1133 2018-01-18  Uros Bizjak  <ubizjak@gmail.com>
1134
1135         * configure.ac (AC_CHECK_HEADERS): Add linux/types.h.  Conditionally
1136         include linux/types.h when checking linux/random.h header.
1137         * config.h.in: Regenerate.
1138         * configure: Ditto.
1139         * src/c++11/random.cc: Conditionally include linux/types.h.
1140
1141 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
1142
1143         * testsuite/17_intro/names.cc: Undefine 'y' on SPARC/Linux.
1144
1145 2018-01-16  Jonathan Wakely  <jwakely@redhat.com>
1146
1147         PR libstdc++/83834
1148         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace std::c[a-g]* wildcard
1149         pattern with exact match for std::cerr.
1150
1151 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
1152
1153         PR libstdc++/83833
1154         * include/bits/random.h (chi_squared_distribution::param): Update
1155         gamma distribution parameter.
1156         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc: New
1157         test.
1158
1159         PR libstdc++/83830
1160         * include/std/type_traits (has_unique_object_representations_v): Add
1161         variable template.
1162         * testsuite/20_util/has_unique_object_representations/value.cc: Check
1163         variable template.
1164
1165 2018-01-15  Ville Voutilainen  <ville.voutilainen@gmail.com>
1166
1167         Make optional conditionally
1168         trivially_{copy,move}_{constructible,assignable}
1169         * include/std/optional (_Optional_payload): Fix the comment in
1170         the class head and turn into a primary and one specialization.
1171         (_Optional_payload::_M_engaged): Strike the NSDMI.
1172         (_Optional_payload<_Tp, false>::operator=(const _Optional_payload&)):
1173         New.
1174         (_Optional_payload<_Tp, false>::operator=(_Optional_payload&&)):
1175         Likewise.
1176         (_Optional_payload<_Tp, false>::_M_get): Likewise.
1177         (_Optional_payload<_Tp, false>::_M_reset): Likewise.
1178         (_Optional_base_impl): Likewise.
1179         (_Optional_base): Turn into a primary and three specializations.
1180         (optional(nullopt)): Change the base init.
1181         * testsuite/20_util/optional/assignment/8.cc: New.
1182         * testsuite/20_util/optional/cons/trivial.cc: Likewise.
1183         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
1184
1185 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
1186
1187         PR libstdc++/80276
1188         * python/libstdcxx/v6/printers.py (strip_inline_namespaces): New.
1189         (get_template_arg_list): New.
1190         (StdVariantPrinter._template_args): Remove, use get_template_arg_list
1191         instead.
1192         (TemplateTypePrinter): Rewrite to work with gdb.Type objects instead
1193         of strings and regular expressions.
1194         (add_one_template_type_printer): Adapt to new TemplateTypePrinter.
1195         (FilteringTypePrinter): Add docstring. Match using startswith. Use
1196         strip_inline_namespaces instead of strip_versioned_namespace.
1197         (add_one_type_printer): Prepend namespace to match argument.
1198         (register_type_printers): Add type printers for char16_t and char32_t
1199         string types and for types using cxx11 ABI. Update calls to
1200         add_one_template_type_printer to provide default argument dicts.
1201         * testsuite/libstdc++-prettyprinters/80276.cc: New test.
1202         * testsuite/libstdc++-prettyprinters/whatis.cc: Remove tests for
1203         basic_string<unsigned char> and basic_string<signed char>.
1204         * testsuite/libstdc++-prettyprinters/whatis2.cc: Duplicate whatis.cc
1205         to test local variables, without overriding _GLIBCXX_USE_CXX11_ABI.
1206
1207 2018-01-14  Andreas Schwab  <schwab@linux-m68k.org>
1208
1209         PR libstdc++/81092
1210         * config/abi/post/ia64-linux-gnu/baseline_symbols.txt: Update.
1211
1212 2018-01-13  Tim Shen  <timshen@google.com>
1213
1214         PR libstdc++/83601
1215         * include/bits/regex.tcc (regex_replace): Fix escaping in sed.
1216         * testsuite/28_regex/algorithms/regex_replace/char/pr83601.cc: Tests.
1217         * testsuite/28_regex/algorithms/regex_replace/wchar_t/pr83601.cc: Tests.
1218
1219 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1220
1221         PR libstdc++/64054
1222         * testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc:
1223         Remove dg-xfail-run-if.
1224
1225 2018-01-10  François Dumont  <fdumont@gcc.gnu.org>
1226
1227         * include/bits/forward_list.h
1228         (_Fwd_list_node_base(_Fwd_list_node_base&&)): New.
1229         (_Fwd_list_node_base& operator=(_Fwd_list_node_base&&)): New.
1230         (_Fwd_list_node_base(const _Fwd_list_node_base&)): Explicit delete.
1231         (_Fwd_list_node_base& operator=(const _Fwd_list_node_base&)): Likewise.
1232         (_Fwd_list_impl()): Add noexcept qualification.
1233         (_Fwd_list_impl(const _Node_alloc_type&)): Delete.
1234         (_Fwd_list_impl(_Fwd_list_impl&&)): New, default.
1235         (_Fwd_list_impl(_Fwd_list_impl&&, _Node_alloc_type&&)): New.
1236         (_Fwd_list_base()): Default.
1237         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&, true_type)): New.
1238         (_Fwd_list_base(_Fwd_list_base&&)): Default.
1239         (forward_list<>()): Default.
1240         (forward_list<>(forward_list&&)): Default.
1241         (forward_list(forward_list&&, _Node_alloc_type&&, false_type)): New.
1242         (forward_list(forward_list&&, _Node_alloc_type&&, true_type)): New.
1243         (forward_list(forward_list&&, const _Alloc&)): Adapt to use latters.
1244         * include/bits/forward_list.tcc
1245         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&)): Adapt to use
1246         _M_impl._M_head move assignment.
1247         (forward_list<>::merge(forward_list<>&&, _Comp)): Likewise.
1248         * testsuite/23_containers/forward_list/allocator/default_init.cc: New.
1249
1250 2018-01-09  Jonathan Wakely  <jwakely@redhat.com>
1251
1252         PR libstdc++/80276
1253         * python/libstdcxx/v6/printers.py (SharedPointerPrinter)
1254         (UniquePointerPrinter): Print correct template argument, not type of
1255         the pointer.
1256         (TemplateTypePrinter._recognizer.recognize): Handle failure to lookup
1257         a type.
1258         * testsuite/libstdc++-prettyprinters/cxx11.cc: Test unique_ptr of
1259         array type.
1260         * testsuite/libstdc++-prettyprinters/cxx17.cc: Test shared_ptr and
1261         weak_ptr of array types.
1262
1263 2018-01-09  François Dumont  <fdumont@gcc.gnu.org>
1264
1265         PR libstdc++/83709
1266         * include/bits/hashtable_policy.h
1267         (__distance_fwd(_Iterator, _Iterator, input_iterator_tag)): Return 1 if
1268         __first != __last.
1269         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, true_type)): New.
1270         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, false_type)):
1271         Add false_type parameter.
1272         (_Insert_base::insert): Adapt.
1273         * include/bits/hashtable.h (_Hashtable::operator=(initializzr_list<>)):
1274         Adapt.
1275         (_Hashtable::_M_insert(_Arg&&, const _NodeGen&, true_type, size_t)):
1276          Add __n_elt parameter, defaulted to 1.
1277         (_Hashtable::_M_insert_unique_node): Likewise. Use it to call rehash
1278         policy _M_need_rehash.
1279         (_Hashtable::_M_merge_unique): Pass target number of elements to add to
1280         produce only 1 rehash if necessary.
1281         * testsuite/23_containers/unordered_map/insert/83709.cc: New.
1282         * testsuite/23_containers/unordered_set/insert/83709.cc: New.
1283
1284 2018-01-09  Juraj Oršulić  <juraj.orsulic@fer.hr>
1285             Jonathan Wakely  <jwakely@redhat.com>
1286
1287         PR libstdc++/59253 (partial)
1288         * python/libstdcxx/v6/printers.py (SmartPtrIterator): Common iterator
1289         type for pointer stored by shared_ptr, weak_ptr and unique_ptr.
1290         (SharedPointerPrinter, UniquePointerPrinter): Treat stored values as
1291         children.
1292         * testsuite/libstdc++-prettyprinters/cxx11.cc: Update expected output
1293         of unique_ptr printer.
1294         * testsuite/libstdc++-prettyprinters/shared_ptr.cc: Update expected
1295         output of shared_ptr printer.
1296
1297 2018-01-05  Jonathan Wakely  <jwakely@redhat.com>
1298
1299         PR libstdc++/83626
1300         * src/filesystem/ops.cc (remove(const path&, error_code&)): Remove
1301         unnecessary symlink_status call.
1302         (remove_all(const path&, error_code&)): Use filesystem::remove.
1303         * src/filesystem/std-ops.cc: Likewise.
1304
1305         PR libstdc++/83279
1306         * src/filesystem/std-ops.cc  (do_copy_file): Use non-null offset with
1307         sendfile.
1308
1309         PR libstdc++/83626
1310         * src/filesystem/ops.cc (remove(const path&, error_code&)): Do not
1311         report an error for ENOENT.
1312         (remove_all(const path&)): Fix type of result variable.
1313         (remove_all(const path&, error_code&)): Use non-throwing increment
1314         for directory iterator. Call POSIX remove directly to avoid redundant
1315         calls to symlink_status. Do not report errors for ENOENT.
1316         * src/filesystem/std-ops.cc: Likewise.
1317         * testsuite/27_io/filesystem/operations/remove_all.cc: Test throwing
1318         overload.
1319         * testsuite/experimental/filesystem/operations/remove_all.cc:
1320         Likewise.
1321
1322 2018-01-04  Jonathan Wakely  <jwakely@redhat.com>
1323
1324         PR libstdc++/83626
1325         * src/filesystem/ops.cc (remove(const path&, error_code&))): Remove
1326         redundant call to ec.clear().
1327         (remove_all(const path&, error_code&))): Do not return an error for
1328         non-existent paths.
1329         * src/filesystem/std-ops.cc: Likewise.
1330         * testsuite/27_io/filesystem/operations/remove.cc: New test.
1331         * testsuite/27_io/filesystem/operations/remove_all.cc: Fix expected
1332         results for non-existent paths.
1333         * testsuite/experimental/filesystem/operations/remove.cc: New test.
1334         * testsuite/experimental/filesystem/operations/remove_all.cc: Fix
1335         expected results for non-existent paths.
1336
1337         * include/bits/fs_ops.h (exists(const path&, error_code&))): Only
1338         check status_known once.
1339         * include/experimental/bits/fs_ops.h: Likewise.
1340
1341         PR libstdc++/83607
1342         * include/std/functional (__is_byte_like): New trait.
1343         (__is_std_equal_to): Remove.
1344         (__boyer_moore_base_t): Use __is_byte_like instead of
1345         __is_std_equal_to.
1346         * include/experimental/functional (__is_std_equal_to): Remove.
1347         (__boyer_moore_base_t): Use __is_byte_like instead of
1348         __is_std_equal_to.
1349         * testsuite/20_util/function_objects/83607.cc: New test.
1350
1351 2018-01-03  Ville Voutilainen  <ville.voutilainen@gmail.com>
1352
1353         Protect optional's deduction guide with the feature macro
1354         * include/std/optional: Use the feature macro.
1355
1356 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
1357
1358         Update copyright years.
1359 \f
1360 Copyright (C) 2018 Free Software Foundation, Inc.
1361
1362 Copying and distribution of this file, with or without modification,
1363 are permitted in any medium without royalty provided the copyright
1364 notice and this notice are preserved.