libstdc++-v3/ChangeLog

   1 2018-09-01  Gerald Pfeifer  <gerald@pfeifer.com>
   2
   3         * doc/xml/manual/profile_mode.xml: Update three ieeexplore.ieee.org
   4         references.
   5
   6 2018-08-31  Sandra Loosemore  <sandra@codesourcery.com>
   7
   8         * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/10.cc:
   9         Add dg-require-fileio.
  10         * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc:
  11         Likewise.
  12         * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc:
  13         Likewise.
  14         * testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc:
  15         Likewise.
  16         * testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc:
  17         Likewise.
  18         * testsuite/25_algorithms/find/istreambuf_iterators/wchar_t/2.cc:
  19         Likewise.
  20         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-1.cc: Likewise.
  21         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-2.cc: Likewise.
  22         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc: Likewise.
  23         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-4.cc: Likewise.
  24         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/11543.cc: Likewise.
  25         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-1.cc:
  26         Likewise.
  27         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-2.cc:
  28         Likewise.
  29         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-3.cc:
  30         Likewise.
  31         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-4.cc:
  32         Likewise.
  33         * testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-1.cc:
  34         Likewise.
  35         * testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-2.cc:
  36         Likewise.
  37         * testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-4.cc:
  38         Likewise.
  39         * testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc: Likewise.
  40         * testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc: Likewise.
  41         * testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: Likewise.
  42         * testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: Likewise.
  43         * testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc:
  44         Likewise.
  45         * testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc:
  46         Likewise.
  47         * testsuite/27_io/basic_istream/get/wchar_t/2.cc: Likewise.
  48         * testsuite/27_io/basic_istream/getline/wchar_t/5.cc: Likewise.
  49         * testsuite/27_io/basic_istream/ignore/wchar_t/2.cc: Likewise.
  50         * testsuite/27_io/basic_istream/ignore/wchar_t/3.cc: Likewise.
  51         * testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc: Likewise.
  52         * testsuite/27_io/basic_istream/tellg/wchar_t/sstream.cc: Likewise.
  53         * testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: Likewise.
  54         * testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: Likewise.
  55         * testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc:
  56         Likewise.
  57         * testsuite/27_io/objects/wchar_t/10.cc: Likewise.
  58         * testsuite/27_io/objects/wchar_t/12048-1.cc: Likewise.
  59         * testsuite/27_io/objects/wchar_t/12048-2.cc: Likewise.
  60         * testsuite/27_io/objects/wchar_t/12048-3.cc: Likewise.
  61         * testsuite/27_io/objects/wchar_t/12048-4.cc: Likewise.
  62         * testsuite/27_io/objects/wchar_t/12048-5.cc: Likewise.
  63         * testsuite/experimental/string_view/inserters/wchar_t/2.cc:
  64         Likewise.
  65         * testsuite/ext/stdio_sync_filebuf/wchar_t/1.cc: Likewise.
  66
  67 2018-08-30  Sandra Loosemore  <sandra@codesourcery.com>
  68
  69         * testsuite/experimental/propagate_const/observers/1.cc: Make
  70         dependence on -fdelete-null-pointer-checks explicit.
  71
  72 2018-08-30  Jonathan Wakely  <jwakely@redhat.com>
  73
  74         * include/bits/hashtable_policy.h (__clp2): Fix calculation for LLP64
  75         targets where sizeof(size_t) > sizeof(long). Avoid undefined shifts
  76         of the number of bits in the type.
  77         * include/std/bit (__ceil2): Avoid undefined shifts.
  78         * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Test values with
  79         the most signifiant bit set.
  80
  81         * config/abi/pre/gnu.ver: Add missing exports for mingw.
  82
  83         * include/ext/pointer.h (_Pointer_adapter): Define operators for
  84         pointer arithmetic using long long offsets.
  85         * testsuite/ext/ext_pointer/1.cc: Test pointer arithmetic using
  86         long long values.
  87
  88 2018-08-29  Jonathan Wakely  <jwakely@redhat.com>
  89
  90         PR libstdc++/31413
  91         * testsuite/22_locale/time_get/get_date/wchar_t/4.cc: Check D_FMT
  92         string for alternative format.
  93
  94 2018-08-28  Jonathan Wakely  <jwakely@redhat.com>
  95
  96         PR libstdc++/87116
  97         * src/filesystem/std-path.cc (path::lexically_normal): When handling
  98         a dot-dot filename, preserve an empty final component in the iteration
  99         sequence.
 100         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use preferred-separator for
 101         root-directory.
 102         * testsuite/27_io/filesystem/path/generation/normal.cc: Add new tests
 103         for more than two adjacent dot-dot filenames.
 104         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Replace slashes with
 105         preferred-separator in expected normalized strings.
 106
 107 2018-08-25  Iain Sandoe  <iain@sandoe.co.uk>
 108
 109         PR libstdc++/70694
 110         * configure.host (OPT_LDFLAGS): Don't append
 111         -fvisibility-inlines-hidden for newer Darwin.
 112
 113 2018-08-24  Marc Glisse  <marc.glisse@inria.fr>
 114
 115         PR libstdc++/86822
 116         * libsupc++/new (operator new(size_t, nothrow_t), operator
 117         new[](size_t, nothrow_t), operator new(size_t, align_val_t, nothrow_t),
 118         operator new[](size_t, align_val_t, nothrow_t)): Add malloc attribute.
 119
 120 2018-08-24  Jonathan Wakely  <jwakely@redhat.com>
 121
 122         * include/debug/deque (std::__debug::deque): Declare.
 123         * include/debug/forward_list (std::__debug::forward_list): Declare.
 124         * include/debug/list (std::__debug::list): Declare.
 125         * include/debug/map (std::__debug::map): Declare.
 126         * include/debug/set (std::__debug::set): Declare.
 127         * include/debug/unordered_map (std::__debug::unordered_map): Declare.
 128         * include/debug/unordered_set (std::__debug::unordered_set): Declare.
 129         * include/debug/vector (std::__debug::vector): Declare.
 130         * testsuite/23_containers/deque/types/pmr_typedefs_debug.cc: New test.
 131         * testsuite/23_containers/forward_list/pmr_typedefs_debug.cc: New
 132         test.
 133         * testsuite/23_containers/list/pmr_typedefs_debug.cc: New test.
 134         * testsuite/23_containers/map/pmr_typedefs_debug.cc: New test.
 135         * testsuite/23_containers/multimap/pmr_typedefs_debug.cc: New test.
 136         * testsuite/23_containers/multiset/pmr_typedefs_debug.cc: New test.
 137         * testsuite/23_containers/set/pmr_typedefs_debug.cc: New test.
 138         * testsuite/23_containers/unordered_map/pmr_typedefs_debug.cc: New
 139         test.
 140         * testsuite/23_containers/unordered_multimap/pmr_typedefs_debug.cc:
 141         New test.
 142         * testsuite/23_containers/unordered_multiset/pmr_typedefs_debug.cc:
 143         New test.
 144         * testsuite/23_containers/unordered_set/pmr_typedefs_debug.cc: New
 145         test.
 146         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
 147         Adjust dg-error lineno.
 148         * testsuite/23_containers/vector/types/pmr_typedefs_debug.cc: New
 149         test.
 150
 151 2018-08-23  Jonathan Wakely  <jwakely@redhat.com>
 152
 153         * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
 154         Only define when RTTI is enabled.
 155
 156         * include/debug/vector (__niter_base): Define for C++98.
 157
 158         * testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc:
 159         Fix C++98 test to not use C++11 features.
 160         * testsuite/25_algorithms/fill_n/2.cc: Likewise.
 161
 162         * scripts/check_compile: Fix comments.
 163
 164         * include/debug/string (insert(__const_iterator, _InIter, _InIter)):
 165         [!_GLIBCXX_USE_CXX11_ABI]: Replace use of C++11-only cbegin() with
 166         begin(), for C++98 compatibility.
 167
 168         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
 169         (basic_string::__const_iterator): Change access to protected.
 170         [!_GLIBCXX_USE_CXX11_ABI] (basic_string::__const_iterator): Define
 171         as typedef for iterator.
 172         * include/debug/string (__const_iterator): Use typedef from base.
 173         (insert(const_iterator, _CharT))
 174         (replace(const_iterator, const_iterator, const basic_string&))
 175         (replace(const_iterator, const_iterator, const _CharT*, size_type))
 176         (replace(const_iterator, const_iterator, const CharT*))
 177         (replace(const_iterator, const_iterator, size_type, _CharT))
 178         (replace(const_iterator, const_iterator, _InputIter, _InputIter))
 179         (replace(const_iterator, const_iterator, initializer_list<_CharT>)):
 180         Change const_iterator parameters to __const_iterator.
 181         (insert(iterator, size_type, _CharT)): Add C++98 overload.
 182         (insert(const_iterator, _InputIterator, _InputIterator)): Change
 183         const_iterator parameter to __const_iterator.
 184         [!_GLIBCXX_USE_CXX11_ABI]: Add workaround for incorrect return type
 185         of base's member function.
 186         (insert(const_iterator, size_type, _CharT)) [!_GLIBCXX_USE_CXX11_ABI]:
 187         Likewise.
 188         (insert(const_iterator, initializer_list<_CharT>))
 189         [!_GLIBCXX_USE_CXX11_ABI]: Likewise.
 190         * testsuite/21_strings/basic_string/init-list.cc: Remove effective
 191         target directive.
 192
 193         * testsuite/20_util/reference_wrapper/lwg2993.cc: Fix C++11 test to
 194         not use C++14 feature.
 195         * testsuite/23_containers/list/68222_neg.cc: Likewise.
 196
 197         * testsuite/21_strings/basic_string/init-list.cc:
 198         Require cxx11-abi.
 199         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
 200         Likewise.
 201         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
 202         Likewise.
 203
 204         * testsuite/23_containers/deque/capacity/max_size.cc: Fix test for
 205         C++98 mode.
 206         * testsuite/23_containers/deque/modifiers/assign/1.cc: Likewise.
 207         * testsuite/23_containers/list/modifiers/assign/1.cc: Likewise.
 208         * testsuite/23_containers/vector/bool/modifiers/assign/1.cc: Likewise.
 209         * testsuite/23_containers/vector/capacity/max_size.cc: Likewise.
 210         * testsuite/23_containers/vector/modifiers/assign/1.cc: Likewise.
 211
 212 2018-08-22  Jonathan Wakely  <jwakely@redhat.com>
 213
 214         PR libstdc++/87061
 215         * include/experimental/regex [!_GLIBCXX_USE_CXX11_ABI]
 216         (experimental::pmr::match_results, experimental::pmr::cmatch)
 217         (experimental::pmr::smatch, experimental::pmr::wcmatch)
 218         (experimental::pmr::wsmatch): Do not declare for gcc4-compatible ABI,
 219         because COW strings don't support C++11 allocator model.
 220         * include/experimental/string [!_GLIBCXX_USE_CXX11_ABI]
 221         (experimental::pmr::basic_string, experimental::pmr::string)
 222         (experimental::pmr::u16string, experimental::pmr::u32string)
 223         (experimental::pmr::wstring): Likewise.
 224         * include/std/regex [!_GLIBCXX_USE_CXX11_ABI] (pmr::match_results)
 225         (pmr::cmatch, pmr::smatch, pmr::wcmatch, pmr::wsmatch): Likewise.
 226         * include/std/string [!_GLIBCXX_USE_CXX11_ABI] (pmr::basic_string)
 227         (pmr::string, pmr::u16string, pmr::u32string, pmr::wstring): Likewise.
 228         * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Require
 229         cxx11-abi.
 230         * testsuite/28_regex/match_results/pmr_typedefs.cc: Likewise.
 231
 232         PR libstdc++/78448
 233         * include/bits/deque.tcc (deque::_M_range_initialize): Use
 234         _S_check_init_len to check size.
 235         (deque::_M_push_back_aux, deque::_M_push_front_aux): Throw length
 236         error if size would exceed max_size().
 237         * include/bits/stl_deque.h (_Deque_base::size_type): Remove typedef.
 238         (_Deque_base(_Deque_base&&, const allocator_type&, size_t)): Use
 239         size_t instead of size_type.
 240         (deq(size_type, const allocator_type&)
 241         (deq(size_type, const value_type&, const allocator_type&)
 242         (deque::_M_initialize_dispatch): Use _S_check_init_len to check size.
 243         (deque::max_size): Call _S_max_size.
 244         (deque::_S_check_init_len, deque::_S_max_size): New functions.
 245         * include/bits/stl_vector.h (vector(size_type, const allocator_type&))
 246         (vector(size_type, const value_type&, const allocator_type&))
 247         (vector::_M_initialize_dispatch, vector::_M_range_initialize): Use
 248         _S_check_init_len to check size.
 249         (vector::max_size): Call _S_max_size.
 250         (vector::_M_check_len): Prevent max from being expanded as a
 251         function-like macro.
 252         (vector::_S_check_init_len, vector::_S_max_size): New functions.
 253         * include/bits/vector.tcc (vector::_M_assign_aux): Use
 254         _S_check_init_len to check size.
 255         * testsuite/23_containers/deque/capacity/max_size.cc: New test.
 256         * testsuite/23_containers/vector/capacity/max_size.cc: New test.
 257
 258 2018-08-22  François Dumont  <fdumont@gcc.gnu.org>
 259
 260         PR libstdc++/68222
 261         * include/debug/safe_iterator.h
 262         (_Safe_iterator<_It, _Sq, _Cat>): Add category template parameter.
 263         (_Safe_iterator<>::_Const_iterator): Remove.
 264         (_Safe_iterator<>::_IsConstant): New.
 265         (_Safe_iterator<>::_OtherIterator): New.
 266         (_Safe_iterator<_It, _Sq, _Cat>::_Safe_iterator<_MutIte>(
 267         const _Safe_iterator<_MutIte, _Sq, _Cat>&)): Add _IsConstant::__value in
 268         __gnu_cxx::__enable_if condition.
 269         (_Safe_iterator<_It, _Sq, _Cat>::_M_get_distance_to): New.
 270         (_Safe_iterator<_It, _Sq, _Cat>::_M_get_distance_from_begin): New.
 271         (_Safe_iterator<_It, _Sq, _Cat>::_M_get_distance_to_end): New.
 272         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>): New.
 273         (_Safe_iterator<_It, _Sq, _Cat>::operator--()): Move...
 274         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>
 275         ::operator--()): ...here.
 276         (_Safe_iterator<_It, _Sq, _Cat>::operator--(int)): Move...
 277         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>
 278         ::operator--(int)): ...here.
 279         (_Safe_iterator<_It, _Sq, _Cat>::_M_decrementable()): Move...
 280         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>
 281         ::_M_decrementable()): ...here.
 282         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>): New.
 283         (_Safe_iterator<_It, _Sq, _Cat>::operator[](const difference_type&)):
 284         Move...
 285         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
 286         ::operator[](const difference_type&)): ...here.
 287         (_Safe_iterator<_It, _Sq, _Cat>::operator+=(const difference_type&)):
 288         Move...
 289         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
 290         ::operator+=(const difference_type&)): ...here.
 291         (_Safe_iterator<_It, _Sq, _Cat>::operator+(const difference_type&)):
 292         Move...
 293         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
 294         ::operator+(const difference_type&)): ...here.
 295         (_Safe_iterator<_It, _Sq, _Cat>::operator-=(const difference_type&)):
 296         Move...
 297         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
 298         ::operator-=(const difference_type&)): ...here.
 299         (_Safe_iterator<_It, _Sq, _Cat>::operator-(const difference_type&)):
 300         Move...
 301         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
 302         ::operator-(const difference_type&)): ...here.
 303         (operator<(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 304         Constraint to random access iterators.
 305         (operator<=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 306         Likewise.
 307         (operator>(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
 308         (operator>=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 309         Likewise.
 310         (operator-(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
 311         (operator+(const difference_type&, const _Safe_iterator<>&)): Likewise.
 312         (__check_dereferenceable(const _Safe_iterator<>&)): Remove.
 313         (__get_distance): Remove.
 314         (__get_distance_from_begin): Remove.
 315         (__get_distance_to_end): Remove.
 316         (struct __is_safe_random_iterator<_Safe_iterator<>>): Remove partial
 317         specialization.
 318         (__base(const _Safe_iterator<>&, std::input_iterator_tag)): Remove.
 319         (__base(const _Safe_iterator<>&, std::random_access_iterator_tag)): Remove.
 320         (__base(const _Safe_iterator<>&)): Constraint to random access iterator.
 321         * include/debug/safe_iterator.tcc
 322         (_Safe_iterator<>::_M_get_distance_from_begin()): New.
 323         (_Safe_iterator<>::_M_get_distance_to_end()): New.
 324         (_Safe_iterator<>::_M_get_distance_to(const _Safe_iterator<>&)): New.
 325         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
 326         ::_M_valid_range): New.
 327         * include/debug/safe_local_iterator.h
 328         (_Safe_local_iterator<>::_Const_local_iterator): Remove.
 329         (_Safe_local_iterator<>::_IsConstant): New.
 330         (_Safe_local_iterator<>::_OtherIterator): New.
 331         (_Safe_local_iterator<_It, _Cont>::_Safe_local_iterator<_MutIte, _Cont>(
 332         const _Safe_local_iterator<_MutIte, _Seq>&)): Add _IsConstant::__value
 333         in __gnu_cxx::__enable_if condition. If singular compare base iterator
 334         with _MutIte rather than _It.
 335         (_Safe_local_iterator<>::_S_constant): Make constexpr.
 336         (_Safe_local_iterator<>::_M_get_distance_to): New.
 337         (__check_dereferenceable(const _Safe_local_iterator<>&)): Remove.
 338         (__get_distance(const _Safe_local_iterator<>&,
 339         const _Safe_local_iterator<>&, std::input_iterator_tag)): Remove.
 340         (__valid_range(const _Safe_local_iterator<>&,
 341         const _Safe_local_iterator<>&)): New.
 342         * include/debug/safe_local_iterator.tcc
 343         (_Safe_local_iterator<>::_M_get_distance_to): New.
 344         * include/debug/deque (std::__debug::deque<>): Add
 345         ::__gnu_debug::_Safe_iterator<> friend declaration.
 346         * include/debug/forward_list (std::__debug::forward_list<>): Likewise.
 347         * include/debug/list (std::__debug::list<>): Likewise.
 348         * include/debug/map.h (std::__debug::map<>): Likewise.
 349         * include/debug/multimap.h (std::__debug::multimap<>): Likewise.
 350         * include/debug/set.h (std::__debug::set<>): Likewise.
 351         * include/debug/multiset.h (std::__debug::multiset<>): Likewise.
 352         * include/debug/string (std::__debug::basic_string<>): Likewise.
 353         * include/debug/unordered_map (std::__debug::unordered_map<>): Likewise
 354         and add ::__gnu_debug::_Safe_local_iterator<> friend declaration.
 355         (std::__debug::unordered_multimap<>): Likewise.
 356         * include/debug/unordered_set (std::__debug::unordered_set<>): Likewise.
 357         (std::__debug::unordered_multiset<>): Likewise.
 358         * include/debug/formatter.h: Adapt.
 359         * include/debug/helper_functions.h
 360         (__gnu_debug::_Safe_local_iterator<>): Add declaration.
 361         (__get_distance<_Ite>(_Ite, _Ite, std::random_access_iterator_tag):
 362         Pass parameter by copy.
 363         (__get_distance<_Ite>(_Ite, _Ite, std::input_iterator_tag): Likewise.
 364         (__get_distance<_Ite>(_Ite, _Ite): Likewise.
 365         (__valid_range_aux<_Integral>): Pass _Integral by copy.
 366         (__valid_range<_InputIterator>): Pass _InputIterator by copy.
 367         (__valid_range<>(const _Safe_iterator<>&,
 368         const _Safe_iterator<>&, typename _Distance_traits<>::__type&)):
 369         Declare.
 370         (__valid_range(const _Safe_local_iterator<>&,
 371         const _Safe_local_iterator<>&, typename _Distance_traits<>::__type&)):
 372         Declare.
 373         (__valid_range<>(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 374         Declare.
 375         (__valid_range(const _Safe_local_iterator<>&, const _Safe_local_iterator<>&)):
 376         Declare.
 377         (__can_advance): Adapt.
 378         (struct __is_safe_random_iterator<>): Remove.
 379         (struct _SIter_base<>): Remove.
 380         * include/debug/functions.h: Include <bits/stl_iterator.h>.
 381         (__check_dereferenceable): Remove.
 382         (__foreign_iterator_aux4, __foreign_iterator_aux3): Adapt.
 383         (__foreign_iterator_aux2, __foreign_iterator_aux): Adapt.
 384         (__foreign_iterator): Adapt.
 385         * include/debug/stl_iterator.h
 386         (__is_safe_random_iterator<std::reverse_iterator<>>): Remove.
 387         (__base(const std::reverse_iterator<_Safe_iterator<_It, _Sq>)):
 388         Constraint for random access iterators.
 389         (__niter_base): Adapt.
 390         * testsuite/util/testsuite_containers.h:
 391         Include <bits/boost_concept_check.h>.
 392         (iterator_concept_checks<_It, _Mutable, _Category>): New.
 393         (citerator<_Cont>::forward_members::forward_members()): Instantiate
 394         latter for container iterator and const_iterator.
 395         * testsuite/23_containers/list/68222_neg.cc: New.
 396         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc: Adapt
 397         line number.
 398         * testsuite/23_containers/unordered_set/debug/debug_functions.cc:
 399         (test01): Remove.
 400         * testsuite/23_containers/vector/debug/debug_functions.cc (test01):
 401         Remove.
 402
 403 2018-08-22  Jonathan Wakely  <jwakely@redhat.com>
 404
 405         PR libstdc++/77854
 406         * doc/xml/manual/status_cxx1998.xml: Document size_type and
 407         difference_type for containers.
 408         * doc/html/*: Regenerate.
 409
 410 2018-08-21  François Dumont  <fdumont@gcc.gnu.org>
 411
 412         P0646R1 Improving the Return Value of Erase-Like Algorithms I
 413         * include/debug/forward_list (forward_list::__remove_return_type):
 414         Define typedef as size_type or void, according to __cplusplus value.
 415         (_GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
 416         empty, according to __cplusplus value.
 417         (_GLIBCXX20_ONLY): Define macro.
 418         (forward_list::remove, forward_list::unique): Use typedef and macro
 419         to change return type and add abi-tag for C++2a. Return number of
 420         removed elements for C++2a.
 421         (forward_list::remove_if<Pred>, forward_list::unique<BinPred>): Use
 422         typedef to change return type for C++2a. Return number of removed
 423         elements for C++2a.
 424         * include/debug/list (list::__remove_return_type): Define typedef as
 425         size_type or void, according to __cplusplus value.
 426         (_GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
 427         empty, according to __cplusplus value.
 428         (_GLIBCXX20_ONLY): Define macro.
 429         (list::remove, list::unique): Use typedef and macro to change return
 430         type and add abi-tag for C++2a. Return number of removed elements for
 431         C++2a.
 432         (list::remove_if<Predicate>, list::unique<BinaryPredicate>): Use typedef
 433         to change return type for C++2a. Return number of removed elements for
 434         C++2a.
 435
 436 2018-08-21  David Edelsohn  <dje.gcc@gmail.com>
 437
 438         * testsuite/18_support/new_nothrow.cc: XFAIL on AIX.
 439
 440 2018-08-21  Jonathan Wakely  <jwakely@redhat.com>
 441
 442         * testsuite/26_numerics/bit/bitops.count/countl_one.cc: Remove
 443         redundant dg-do directive.
 444         * testsuite/26_numerics/bit/bitops.count/countl_zero.cc: Likewise.
 445         * testsuite/26_numerics/bit/bitops.count/countr_one.cc: Likewise.
 446         * testsuite/26_numerics/bit/bitops.count/countr_zero.cc: Likewise.
 447         * testsuite/26_numerics/bit/bitops.count/popcount.cc: Likewise.
 448
 449 2018-08-20  Jonathan Wakely  <jwakely@redhat.com>
 450
 451         PR libstdc++/86963
 452         * include/std/tuple (_Tuple_impl::operator=): Define as deleted.
 453         (_Tuple_impl::_M_assign): New functions to perform assignment instead
 454         of assignment operators.
 455         (_Tuple_impl::_M_swap): Remove exception specification.
 456         (_Tuple_impl<_Idx, _Head>): Likewise.
 457         (_TC::_NonNestedTuple, _TC::_NotSameTuple): Use __remove_cvref_t.
 458         (__tuple_base): Remove.
 459         (tuple, tuple<_T1, _T2>): Remove inheritance from __tuple_base.
 460         (tuple::operator=, tuple<_T1, _T2>::operator=): Call _M_assign.
 461         (tuple::swap, tuple<_T1, _T2>::swap): Define exception specification
 462         using __is_nothrow_swappable.
 463         (tuple<_T1, _T2>::tuple(_U1&&, _U2&&)): Use __remove_cvref_t.
 464
 465         * include/std/optional (_Optional_payload): Use variable templates
 466         for conditions in default template arguments and exception
 467         specifications.
 468         (optional): Likewise. Adjust indentation.
 469         (optional::__not_self, optional::__not_tag, optional::_Requires): New
 470         SFINAE helpers.
 471         (optional::optional): Use new helpers in constructor constraints.
 472         * include/std/type_traits (__or_v, __and_v): New variable templates.
 473         * testsuite/20_util/optional/cons/value_neg.cc: Change dg-error to
 474         dg-prune-output. Remove unused header.
 475
 476 2018-08-18  François Dumont  <fdumont@gcc.gnu.org>
 477
 478         * testsuite/25_algorithms/copy/86658.cc: Use dg-options to define
 479         _GLIBCXX_DEBUG.
 480
 481 2018-08-17  Jonathan Wakely  <jwakely@redhat.com>
 482
 483         PR libstdc++/86963
 484         * include/std/tuple (__tuple_base): New class template with deleted
 485         copy assignment operator.
 486         (tuple, tuple<_T1, _T2>): Derive from __tuple_base<tuple> so that
 487         implicit copy/move assignment operator will be deleted/suppressed.
 488         (tuple::__assignable, tuple<_T1, _T2>::__assignable): New helper
 489         functions for SFINAE constraints on assignment operators.
 490         (tuple::__nothrow_assignable, tuple<_T1, _T2>::__nothrow_assignable):
 491         New helper functions for exception specifications.
 492         (tuple::operator=(const tuple&), tuple::operator=(tuple&&))
 493         (tuple<_T1, _T2>::operator=(const tuple&))
 494         (tuple<_T1, _T2>::operator=(tuple&&)): Change parameter types to
 495         __nonesuch_no_braces when the operator should be defined implicitly.
 496         Use __nothrow_assignable for exception specifications.
 497         (tuple::operator=(const tuple<_UElements...>&))
 498         (tuple::operator=(tuple<_UElements...>&&))
 499         (tuple<_T1, _T2>::operator=(const tuple<_U1, _U2>&))
 500         (tuple<_T1, _T2>::operator=(tuple<_U1, _U2>&&))
 501         (tuple<_T1, _T2>::operator=(const pair<_U1, _U2>&))
 502         (tuple<_T1, _T2>::operator=(pair<_U1, _U2>&&)): Constrain using
 503         __assignable and use __nothrow_assignable for exception
 504         specifications.
 505         * python/libstdcxx/v6/printers.py (is_specialization_of): Accept
 506         gdb.Type as first argument, instead of a string.
 507         (StdTuplePrinter._iterator._is_nonempty_tuple): New method to check
 508         tuple for expected structure.
 509         (StdTuplePrinter._iterator.__init__): Use _is_nonempty_tuple.
 510         * testsuite/20_util/tuple/dr2729.cc: New test.
 511         * testsuite/20_util/tuple/element_access/get_neg.cc: Change dg-error
 512         to dg-prune-output.
 513
 514 2018-08-16  Jonathan Wakely  <jwakely@redhat.com>
 515
 516         * include/tr1/legendre_function.tcc (__sph_legendre): Avoid warning
 517         about signed/unsigned comparison.
 518
 519         * include/std/ostream (basic_ostream::sentry::~sentry): Suppress
 520         deprecation warnings for using uncaught_exception().
 521
 522         PR libstdc++/86447
 523         * src/c++11/cow-stdexcept.cc [_GLIBCXX_FULLY_DYNAMIC_STRING]
 524         (logic_error::logic_error(logic_error&&))
 525         (logic_error::operator=(logic_error&&))
 526         (runtime_error::runtime_error(runtime_error&&))
 527         (runtime_error::operator=(runtime_error&&)): Copy strings instead of
 528         moving, to avoid allocating empty reps for moved-from strings.
 529
 530 2018-08-15  Jonathan Wakely  <jwakely@redhat.com>
 531
 532         * include/experimental/regex: Remove begin/end macros for namespace.
 533         * include/experimental/string: Likewise.
 534         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc:
 535         New test.
 536         * testsuite/experimental/polymorphic_allocator/
 537         pmr_typedefs_forward_list.cc: New test.
 538         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc:
 539         New test.
 540         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc:
 541         New test.
 542         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
 543         New test.
 544         * testsuite/experimental/polymorphic_allocator/
 545         pmr_typedefs_multimap.cc: New test.
 546         * testsuite/experimental/polymorphic_allocator/
 547         pmr_typedefs_multiset.cc: New test.
 548         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc:
 549         New test.
 550         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
 551         New test.
 552         * testsuite/experimental/polymorphic_allocator/
 553         pmr_typedefs_unordered_map.cc: New test.
 554         * testsuite/experimental/polymorphic_allocator/
 555         pmr_typedefs_unordered_multimap.cc: New test.
 556         * testsuite/experimental/polymorphic_allocator/
 557         pmr_typedefs_unordered_multiset.cc: New test.
 558         * testsuite/experimental/polymorphic_allocator/
 559         pmr_typedefs_unordered_set.cc: New test.
 560         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc:
 561         New test.
 562
 563         * include/bits/uses_allocator.h (__uses_allocator_construct): Qualify
 564         calls to __uses_allocator_construct_impl and __use_alloc.
 565         * include/experimental/memory_resource
 566         (polymorphic_allocator::_M_construct): Remove.
 567         (polymorphic_allocator::construct): Call __uses_allocator_construct.
 568         Qualify calls to __use_alloc.
 569         * include/std/memory_resource (polymorphic_allocator::construct): Fix
 570         type in SFINAE constraint. Use constexpr if instead of tag dispatching
 571         to _S_construct overloads.
 572         (polymorphic_allocator::construct(pair<T1, T2>*, ...)): Fix order of
 573         arguments to _S_construct_p.
 574         (polymorphic_allocator::_S_construct): Remove.
 575         (polymorphic_allocator::_S_construct_p): Return allocators by value
 576         not by reference.
 577         * include/std/scoped_allocator (scoped_allocator_adaptor::construct):
 578         Qualify calls to __use_alloc.
 579         * testsuite/20_util/polymorphic_allocator/construct_pair.cc: New test,
 580         copied from testsuite/20_util/scoped_allocator/construct_pair.cc.
 581         * testsuite/experimental/polymorphic_allocator/1.cc: New test.
 582         * testsuite/experimental/polymorphic_allocator/construct_pair.cc:
 583         New test.
 584
 585         * src/c++17/memory_resource.cc [!_GLIBCXX_HAS_GTHREADS]
 586         (atomic_mem_res): Add unsynchronized definition for single-threaded.
 587
 588 2018-08-14  Jonathan Wakely  <jwakely@redhat.com>
 589
 590         PR libstdc++/86954
 591         * include/bits/stl_tempbuf.h (return_temporary_buffer): Use
 592         non-placement delete.
 593
 594         * include/std/chrono (__check_overflow): Simplify definition.
 595         (_Checked_integral_constant): Remove.
 596
 597         PR libstdc++/86846
 598         * src/c++17/default_resource.h: New file, defining default_res.
 599         * src/c++17/memory_resource.cc [ATOMIC_POINTER_LOCK_FREE != 2]
 600         (atomic_mem_res): Define alternative for atomic<memory_resource*>
 601         using a mutex instead of atomics.
 602
 603         PR libstdc++/85343
 604         * config/abi/pre/gnu.ver: Export new symbol.
 605         * doc/xml/manual/abi.xml: Document new versions.
 606         * include/bits/fstream.tcc (basic_filebuf<C, T>::underflow)
 607         (basic_filebuf<C, T>::xsgetn): Pass errno to __throw_ios_failure.
 608         * include/bits/functexcept.h (__throw_ios_failure(const char*, int)):
 609         Declare new overload.
 610         * src/c++11/cxx11-ios_failure.cc (__ios_failure): Add new constructor
 611         and static member function.
 612         (__throw_ios_failure(const char*, int)): Define.
 613         * src/c++98/ios_failure.cc [!_GLIBCXX_USE_DUAL_ABI]
 614         (__throw_ios_failure(const char*, int)): Define.
 615
 616 2018-08-14  Jeremy Sawicki  <jeremy-gcc@sawicki.us>
 617
 618         * include/ext/rope (_Rope_iterator_base(const _Rope_iterator_base&))
 619         (_Rope_const_iterator::operator=(const _Rope_const_iterator&))
 620         (_Rope_iterator::operator=(const _Rope_iterator&)): Ensure
 621         copied/assigned rope iterators don't retain pointers to the iterator
 622         they were copied/assigned from.
 623         * testsuite/ext/rope/7.cc: New.
 624
 625 2018-08-13  Jonathan Wakely  <jwakely@redhat.com>
 626
 627         PR libstdc++/45093
 628         * include/bits/stl_tree.h (_Rb_tree::_M_destroy_node(_Link_type)):
 629         Combine definitions to avoid --detect-odr-violations warning.
 630
 631         * libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Use
 632         __is_pow2 to check for valid alignment. Avoid branching when rounding
 633         size to multiple of alignment.
 634
 635         * include/Makefile.am: Install <bit> and <version> for freestanding.
 636         * include/Makefile.in: Regenerate.
 637         * testsuite/17_intro/freestanding.cc: Check for <bit> and <version>.
 638
 639         Revert
 640         2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 641
 642         PR target/85904
 643         * configure.ac: Define HAVE_ALIGNED_ALLOC if building for
 644         Newlib.
 645         * configure: Regenerate.
 646
 647 2018-08-10  Jonathan Wakely  <jwakely@redhat.com>
 648
 649         PR libstdc++/68210
 650         * doc/xml/manual/intro.xml: Document LWG 206 change.
 651         * libsupc++/del_op.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
 652         * libsupc++/del_opa.cc: Likewise.
 653         * libsupc++/del_opant.cc: Likewise.
 654         * libsupc++/del_opnt.cc: Likewise. Call operator delete(ptr) instead
 655         of free(ptr).
 656         * libsupc++/del_ops.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
 657         * libsupc++/del_opsa.cc: Likewise.
 658         * libsupc++/del_opva.cc: Likewise.
 659         * libsupc++/del_opvant.cc: Likewise.
 660         * libsupc++/del_opvnt.cc: Likewise. Call operator delete[](ptr)
 661         instead of operator delete(ptr).
 662         * libsupc++/del_opvs.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
 663         * libsupc++/del_opvsa.cc: Likewise.
 664         * libsupc++/new_op.cc: Use __builtin_expect in check for zero size.
 665         * libsupc++/new_opa.cc: Use nullptr instead of literal 0.
 666         * libsupc++/new_opant.cc: Likewise. Replace _GLIBCXX_USE_NOEXCEPT
 667         with noexcept.
 668         * libsupc++/new_opnt.cc: Likewise. Call operator new(sz) instead of
 669         malloc(sz).
 670         * libsupc++/new_opvant.cc: Use nullptr and noexcept.
 671         * libsupc++/new_opvnt.cc: Likewise. Call operator new[](sz) instead of
 672         operator new(sz, nothrow).
 673         * testsuite/18_support/new_nothrow.cc: New test.
 674
 675 2018-08-10  Martin Liska  <mliska@suse.cz>
 676
 677         * libsupc++/new_op.cc (new): Remove __builtin_expect as malloc
 678         predictor can handle that.
 679         * libsupc++/new_opa.cc: Likewise.
 680         * libsupc++/new_opnt.cc (new): Likewise.
 681
 682 2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 683
 684         PR target/85904
 685         * configure.ac: Define HAVE_ALIGNED_ALLOC if building for
 686         Newlib.
 687         * configure: Regenerate.
 688
 689 2018-08-10  Jonathan Wakely  <jwakely@redhat.com>
 690
 691         * include/std/deque (std::pmr::deque): Declare alias.
 692         * include/std/forward_list (std::pmr::forward_list): Likewise.
 693         * include/std/list (std::pmr::list): Likewise.
 694         * include/std/map (std::pmr::map, std::pmr::multimap): Likewise.
 695         * include/std/regex (std::pmr::match_results, std::pmr::cmatch)
 696         (std::pmr::smatch, std::pmr::wcmatch, std::pmr::wsmatch): Likewise.
 697         * include/std/set (std::pmr::set, std::pmr::multiset): Likewise.
 698         * include/std/string (std::pmr::basic_string, std::pmr::string)
 699         (std::pmr::u16string, std::pmr::u32string, std::pmr::wstring):
 700         Likewise.
 701         * include/std/unordered_map (std::pmr::unordered_map)
 702         (std::pmr::unordered_multimap): Likewise.
 703         * include/std/unordered_set (std::pmr::unordered_set)
 704         (std::pmr::unordered_multiset): Likewise.
 705         * include/std/vector (std::pmr::vector): Likewise.
 706         * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: New test.
 707         * testsuite/23_containers/deque/types/pmr_typedefs.cc: New test.
 708         * testsuite/23_containers/forward_list/pmr_typedefs.cc: New test.
 709         * testsuite/23_containers/list/pmr_typedefs.cc: New test.
 710         * testsuite/23_containers/map/pmr_typedefs.cc: New test.
 711         * testsuite/23_containers/multimap/pmr_typedefs.cc: New test.
 712         * testsuite/23_containers/multiset/pmr_typedefs.cc: New test.
 713         * testsuite/23_containers/set/pmr_typedefs.cc: New test.
 714         * testsuite/23_containers/unordered_map/pmr_typedefs.cc: New test.
 715         * testsuite/23_containers/unordered_multimap/pmr_typedefs.cc: New
 716         test.
 717         * testsuite/23_containers/unordered_multiset/pmr_typedefs.cc: New
 718         test.
 719         * testsuite/23_containers/unordered_set/pmr_typedefs.cc: New test.
 720         * testsuite/23_containers/vector/pmr_typedefs.cc: New test.
 721         * testsuite/28_regex/match_results/pmr_typedefs.cc: New test.
 722
 723 2018-08-08  François Dumont  <fdumont@gcc.gnu.org>
 724
 725         * include/bits/stl_algo.h
 726         (__rotate(_Ite, _Ite, _Ite, forward_iterator_tag))
 727         (__rotate(_Ite, _Ite, _Ite, bidirectional_iterator_tag))
 728         (__rotate(_Ite, _Ite, _Ite, random_access_iterator_tag)): Move code
 729         duplication...
 730         (rotate(_Ite, _Ite, _Ite)): ...here.
 731         (__stable_partition_adaptive(_FIt, _FIt, _Pred, _Dist, _Pointer, _Dist)):
 732         Simplify rotate call.
 733         (__rotate_adaptive(_BIt1, _BIt1, _BIt1, _Dist, _Dist, _Bit2, _Dist)):
 734         Likewise.
 735         (__merge_without_buffer(_BIt, _BIt, _BIt, _Dist, _Dist, _Comp)):
 736         Likewise.
 737
 738 2018-08-08  Jonathan Wakely  <jwakely@redhat.com>
 739
 740         * libsupc++/new_opa.cc (aligned_alloc): Declare inside namespace to
 741         avoid clashing with an ::aligned_alloc function that was not detected
 742         by configure.
 743
 744         * doc/xml/manual/using.xml: Fix markup for empty table entry.
 745         * doc/html/*: Regenerate.
 746
 747         * doc/xml/manual/using.xml: Add missing header to table and fix typo.
 748         * doc/html/*: Regenerate.
 749
 750         PR libstdc++/86597
 751         * include/bits/fs_dir.h (directory_entry::_M_file_type(error_code&)):
 752         Clear error_code when cached type is used.
 753         * testsuite/27_io/filesystem/directory_entry/86597.cc: New test.
 754
 755 2018-08-07  Jonathan Wakely  <jwakely@redhat.com>
 756
 757         PR libstdc++/86874
 758         * include/std/variant (_Copy_ctor_base::_M_destructive_move): Define
 759         here instead of in _Move_assign_base.
 760         (_Copy_ctor_base<true, _Types...>::_M_destructive_move): Define.
 761         (_Copy_assign_base::operator=): Use _M_destructive_move when changing
 762         the contained value to another alternative.
 763         (_Move_assign_base::operator=): Likewise.
 764         (_Move_assign_base::_M_destructive_move): Remove.
 765         * testsuite/20_util/variant/86874.cc: New test.
 766
 767         PR libstdc++/86861
 768         * libsupc++/new_opa.cc [_GLIBCXX_HAVE_MEMALIGN] (aligned_alloc):
 769         Replace macro with inline function.
 770         [__sun]: Increase alignment to meet memalign precondition.
 771         [!HAVE__ALIGNED_MALLOC && !HAVE_POSIX_MEMALIGN && !HAVE_MEMALIGN]
 772         (aligned_alloc): Move check for valid alignment to operator new.
 773         Remove redundant check for non-zero size, it's enforced by the caller.
 774         (operator new): Move check for valid alignment here. Use
 775         __builtin_expect on check for zero size.
 776
 777         * config/abi/pre/gnu.ver: Export monotonic_buffer_resource members.
 778         * include/std/memory_resource (monotonic_buffer_resource::release):
 779         Call _M_release_buffers to free buffers.
 780         (monotonic_buffer_resource::do_allocate): Call _M_new_buffer to
 781         allocate a new buffer from upstream.
 782         (monotonic_buffer_resource::_M_new_buffer): Declare.
 783         (monotonic_buffer_resource::_M_release_buffers): Declare.
 784         (monotonic_buffer_resource::_Chunk): Replace definition with
 785         declaration as opaque type.
 786         * src/c++17/memory_resource.cc (monotonic_buffer_resource::_Chunk):
 787         Define.
 788         (monotonic_buffer_resource::_M_new_buffer): Define.
 789         (monotonic_buffer_resource::_M_release_buffers): Define.
 790
 791 2018-08-05  François Dumont  <fdumont@gcc.gnu.org>
 792
 793         * include/bits/stl_iterator.h: Fix comment.
 794
 795 2018-08-03  Jonathan Wakely  <jwakely@redhat.com>
 796
 797         * src/c++11/system_error.cc
 798         (system_error_category::default_error_condition): Add workaround for
 799         ENOTEMPTY and EEXIST having the same value on AIX.
 800         * testsuite/19_diagnostics/error_category/system_category.cc: Add
 801         extra testcases for EDOM, EILSEQ, ERANGE, EEXIST and ENOTEMPTY.
 802
 803 2018-08-01  Jonathan Wakely  <jwakely@redhat.com>
 804
 805         * configure: Regenerate.
 806         * configure.ac: Add -D_GLIBCXX_ASSERTIONS to default DEBUG_FLAGS.
 807         * src/c++11/futex.cc: Use __glibcxx_assert instead of
 808         _GLIBCXX_DEBUG_ASSERT.
 809
 810 2018-08-01  Mike Crowe  <mac@mcrowe.com>
 811
 812         * include/std/condition_variable (wait_for): Use steady_clock.
 813
 814 2018-08-01  Mike Crowe  <mac@mcrowe.com>
 815
 816         * include/std/condition_variable (wait_until): Only report timeout
 817         if we really have timed out when measured against the
 818         caller-supplied clock.
 819         * testsuite/30_threads/condition_variable/members/2.cc: Add test
 820         case to confirm above behaviour.
 821
 822 2018-08-01  Jonathan Wakely  <jwakely@redhat.com>
 823
 824         PR libstdc++/60555
 825         * src/c++11/system_error.cc
 826         (system_error_category::default_error_condition): New override to
 827         check for POSIX errno values.
 828         * testsuite/19_diagnostics/error_category/generic_category.cc: New
 829         * testsuite/19_diagnostics/error_category/system_category.cc: New
 830         test.
 831
 832 2018-07-31  Jonathan Wakely  <jwakely@redhat.com>
 833
 834         PR libstdc++/86751
 835         * include/bits/stl_pair.h (__pair_base): New class with deleted copy
 836         assignment operator.
 837         (pair): Derive from __pair_base.
 838         (pair::operator=): Remove deleted overload.
 839         * python/libstdcxx/v6/printers.py (StdPairPrinter): New pretty printer
 840         so that new base class isn't shown in GDB.
 841         * testsuite/20_util/pair/86751.cc: New test.
 842         * testsuite/20_util/pair/ref_assign.cc: New test.
 843
 844         * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP)
 845         (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Move definitions here.
 846         (_GLIBCXX_HAVE_BUILTIN_LAUNDER): Likewise. Use !__is_identifier
 847         instead of __has_builtin.
 848         * include/std/type_traits (_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP)
 849         (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Remove definitions from here.
 850         * include/std/version [!_GLIBCXX_HAS_GTHREADS]
 851         (__cpp_lib_shared_timed_mutex, __cpp_lib_scoped_lock)
 852         (__cpp_lib_shared_mutex): Don't define when Gthreads not in use.
 853         [!_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP]
 854         (__cpp_lib_has_unique_object_representations): Don't define when
 855         builtin not available.
 856         [!_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE] (__cpp_lib_is_aggregate):
 857         Likewise.
 858         [!_GLIBCXX_HAVE_BUILTIN_LAUNDER] (__cpp_lib_launder): Likewise.
 859         * libsupc++/new (_GLIBCXX_HAVE_BUILTIN_LAUNDER): Remove definition
 860         from here.
 861
 862         * doc/xml/manual/test.xml: Improve documentation on writing tests for
 863         newer standards.
 864         * doc/xml/manual/using.xml: Document all headers for C++11 and later.
 865         * doc/html/*: Regenerate.
 866
 867         * include/ext/pointer.h [__cplusplus >= 201103L]
 868         (_Pointer_adapter::operator bool): Add explicit conversion operator
 869         to replace safe bool idiom.
 870
 871 2018-07-30  Jonathan Wakely  <jwakely@redhat.com>
 872
 873         PR libstdc++/86734
 874         * include/bits/stl_iterator.h (reverse_iterator::operator->): Call
 875         _S_to_pointer (LWG 1052, LWG 2118).
 876         (reverse_iterator::_S_to_pointer): Define overloaded helper functions.
 877         * testsuite/24_iterators/reverse_iterator/dr1052.cc: New test.
 878         * testsuite/24_iterators/reverse_iterator/dr2188.cc: New test.
 879
 880         * libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Add
 881         workaround for aligned_alloc bug on AIX.
 882         * testsuite/18_support/new_aligned.cc: New test.
 883
 884 2018-07-26  Marek Polacek  <polacek@redhat.com>
 885
 886         * testsuite/30_threads/condition_variable_any/cond.cc: New.
 887
 888 2018-07-26  Marek Polacek  <polacek@redhat.com>
 889
 890         * src/c++98/locale_init.cc: Fix #ifdef condition.
 891
 892 2018-07-26  Jonathan Wakely  <jwakely@redhat.com>
 893
 894         * testsuite/18_support/aligned_alloc/aligned_alloc.cc: Add
 895         dg-require-cstdint directive.
 896         * testsuite/20_util/allocator/overaligned.cc: Likewise.
 897         * testsuite/20_util/any/cons/aligned.cc: Likewise.
 898         * testsuite/20_util/monotonic_buffer_resource/allocate.cc: Likewise.
 899         * testsuite/20_util/monotonic_buffer_resource/deallocate.cc: Likewise.
 900         * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
 901         Likewise.
 902         * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
 903         * testsuite/23_containers/list/modifiers/insert/25288.cc: Likewise.
 904         * testsuite/23_containers/set/allocator/move_assign.cc: Likewise.
 905         * testsuite/25_algorithms/make_heap/complexity.cc: Likewise.
 906         * testsuite/25_algorithms/pop_heap/complexity.cc: Require cstdint and
 907         random_device effective-target.
 908         * testsuite/25_algorithms/push_heap/complexity.cc: Likewise.
 909         * testsuite/25_algorithms/sample/1.cc: Require cstdint.
 910         * testsuite/25_algorithms/sample/2.cc: Likewise.
 911         * testsuite/25_algorithms/sort_heap/complexity.cc: Require cstdint
 912         and random_device.
 913         * testsuite/26_numerics/headers/random/types_std_c++0x.cc: Require
 914         cstdint.
 915         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
 916         Likewise.
 917         * testsuite/26_numerics/random/discard_block_engine/requirements/
 918         constexpr_data.cc: Likewise.
 919         * testsuite/26_numerics/random/discard_block_engine/requirements/
 920         constexpr_functions.cc: Likewise.
 921         * testsuite/26_numerics/random/independent_bits_engine/requirements/
 922         constexpr_functions.cc: Likewise.
 923         * testsuite/26_numerics/random/linear_congruential_engine/requirements/
 924         constexpr_data.cc: Likewise.
 925         * testsuite/26_numerics/random/linear_congruential_engine/requirements/
 926         constexpr_functions.cc: Likewise.
 927         * testsuite/26_numerics/random/mersenne_twister_engine/requirements/
 928         constexpr_data.cc: Likewise.
 929         * testsuite/26_numerics/random/mersenne_twister_engine/requirements/
 930         constexpr_functions.cc: Likewise.
 931         * testsuite/26_numerics/random/pr60037-neg.cc: Likewise.
 932         * testsuite/26_numerics/random/seed_seq/cons/65631.cc: Likewise.
 933         * testsuite/26_numerics/random/shuffle_order_engine/requirements/
 934         constexpr_data.cc: Add dg-require-cstdint directive.
 935         * testsuite/26_numerics/random/shuffle_order_engine/requirements/
 936         constexpr_functions.cc: Likewise.
 937         * testsuite/26_numerics/random/subtract_with_carry_engine/requirements/
 938         constexpr_data.cc: Likewise.
 939         * testsuite/26_numerics/random/subtract_with_carry_engine/requirements/
 940         constexpr_functions.cc: Likewise.
 941         * testsuite/26_numerics/random/uniform_real_distribution/operators/
 942         64351.cc: Likewise.
 943         * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc: Likewise.
 944         * testsuite/experimental/algorithm/sample-2.cc: Likewise.
 945         * testsuite/experimental/algorithm/sample.cc: Likewise.
 946         * testsuite/experimental/algorithm/search.cc: Likewise.
 947         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
 948         * testsuite/experimental/any/cons/aligned.cc: Likewise.
 949         * testsuite/experimental/memory_resource/new_delete_resource.cc:
 950         Likewise.
 951         * testsuite/experimental/memory_resource/resource_adaptor.cc: Likewise.
 952         * testsuite/experimental/random/randint.cc: Likewise.
 953         * testsuite/experimental/source_location/1.cc: Likewise.
 954         * testsuite/ext/bitmap_allocator/overaligned.cc: Likewise.
 955         * testsuite/ext/malloc_allocator/overaligned.cc: Likewise.
 956         * testsuite/ext/mt_allocator/overaligned.cc: Likewise.
 957         * testsuite/ext/new_allocator/overaligned.cc: Likewise.
 958         * testsuite/ext/pb_ds/regression/hash_map_rand.cc: Likewise.
 959         * testsuite/ext/pb_ds/regression/hash_set_rand.cc: Likewise.
 960         * testsuite/ext/pb_ds/regression/list_update_map_rand.cc: Likewise.
 961         * testsuite/ext/pb_ds/regression/list_update_set_rand.cc: Likewise.
 962         * testsuite/ext/pb_ds/regression/priority_queue_rand.cc: Likewise.
 963         * testsuite/ext/pb_ds/regression/tree_map_rand.cc: Likewise.
 964         * testsuite/ext/pb_ds/regression/tree_set_rand.cc: Likewise.
 965         * testsuite/ext/pb_ds/regression/trie_map_rand.cc: Likewise.
 966         * testsuite/ext/pb_ds/regression/trie_set_rand.cc: Likewise.
 967         * testsuite/ext/pool_allocator/overaligned.cc: Likewise.
 968         * testsuite/ext/throw_allocator/check_allocate_max_size.cc: Likewise.
 969         * testsuite/ext/throw_allocator/check_deallocate_null.cc: Likewise.
 970         * testsuite/ext/throw_allocator/check_delete.cc: Likewise.
 971         * testsuite/ext/throw_allocator/check_new.cc: Likewise.
 972         * testsuite/ext/throw_allocator/deallocate_global.cc: Likewise.
 973         * testsuite/ext/throw_allocator/deallocate_local.cc: Likewise.
 974         * testsuite/ext/throw_allocator/explicit_instantiation.cc: Likewise.
 975         * testsuite/ext/throw_allocator/variadic_construct.cc: Likewise.
 976         * testsuite/tr1/8_c_compatibility/cinttypes/functions.cc: Likewise.
 977
 978         * testsuite/30_threads/recursive_mutex/cons/1.cc: Likewise.
 979         * testsuite/30_threads/recursive_mutex/cons/assign_neg.cc: Likewise.
 980         * testsuite/30_threads/recursive_mutex/cons/copy_neg.cc: Likewise.
 981         * testsuite/30_threads/recursive_mutex/dest/destructor_locked.cc:
 982         Likewise.
 983         * testsuite/30_threads/recursive_mutex/lock/1.cc: Likewise.
 984         * testsuite/30_threads/recursive_mutex/native_handle/1.cc: Likewise.
 985         * testsuite/30_threads/recursive_mutex/native_handle/typesizes.cc:
 986         Likewise.
 987         * testsuite/30_threads/recursive_mutex/requirements/standard_layout.cc:
 988         Likewise.
 989         * testsuite/30_threads/recursive_mutex/requirements/typedefs.cc:
 990         Likewise.
 991         * testsuite/30_threads/recursive_mutex/try_lock/1.cc: Likewise.
 992         * testsuite/30_threads/recursive_mutex/try_lock/2.cc: Likewise.
 993         * testsuite/30_threads/recursive_mutex/unlock/1.cc: Likewise.
 994         * testsuite/30_threads/recursive_mutex/unlock/2.cc: Likewise.
 995         * testsuite/30_threads/recursive_timed_mutex/cons/1.cc: Likewise.
 996         * testsuite/30_threads/recursive_timed_mutex/cons/assign_neg.cc:
 997         Likewise.
 998         * testsuite/30_threads/recursive_timed_mutex/cons/copy_neg.cc:
 999         Likewise.
1000         * testsuite/30_threads/recursive_timed_mutex/dest/
1001         destructor_locked.cc: Likewise.
1002         * testsuite/30_threads/recursive_timed_mutex/lock/1.cc: Likewise.
1003         * testsuite/30_threads/recursive_timed_mutex/lock/2.cc: Likewise.
1004         * testsuite/30_threads/recursive_timed_mutex/native_handle/1.cc:
1005         Likewise.
1006         * testsuite/30_threads/recursive_timed_mutex/native_handle/
1007         typesizes.cc: Likewise.
1008         * testsuite/30_threads/recursive_timed_mutex/requirements/typedefs.cc:
1009         Likewise.
1010         * testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc:
1011         Likewise.
1012         * testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc:
1013         Likewise.
1014         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
1015         Likewise.
1016         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
1017         Likewise.
1018         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
1019         Likewise.
1020         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
1021         Likewise.
1022         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
1023         Likewise.
1024         * testsuite/30_threads/recursive_timed_mutex/unlock/1.cc: Likewise.
1025         * testsuite/30_threads/recursive_timed_mutex/unlock/2.cc: Likewise.
1026         * testsuite/30_threads/scoped_lock/cons/1.cc: Likewise.
1027         * testsuite/30_threads/scoped_lock/requirements/
1028         explicit_instantiation.cc: Likewise.
1029         * testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Likewise.
1030         * testsuite/30_threads/shared_future/cons/assign.cc: Likewise.
1031         * testsuite/30_threads/shared_future/cons/constexpr.cc: Likewise.
1032         * testsuite/30_threads/shared_future/cons/copy.cc: Likewise.
1033         * testsuite/30_threads/shared_future/cons/default.cc: Likewise.
1034         * testsuite/30_threads/shared_future/cons/move.cc: Likewise.
1035         * testsuite/30_threads/shared_future/cons/move_assign.cc: Likewise.
1036         * testsuite/30_threads/shared_future/members/45133.cc: Likewise.
1037         * testsuite/30_threads/shared_future/members/get.cc: Likewise.
1038         * testsuite/30_threads/shared_future/members/get2.cc: Likewise.
1039         * testsuite/30_threads/shared_future/members/valid.cc: Likewise.
1040         * testsuite/30_threads/shared_future/members/wait.cc: Likewise.
1041         * testsuite/30_threads/shared_future/members/wait_for.cc: Likewise.
1042         * testsuite/30_threads/shared_future/members/wait_until.cc: Likewise.
1043         * testsuite/30_threads/shared_future/requirements/
1044         explicit_instantiation.cc: Likewise.
1045         * testsuite/30_threads/shared_lock/cons/1.cc: Likewise.
1046         * testsuite/30_threads/shared_lock/cons/2.cc: Likewise.
1047         * testsuite/30_threads/shared_lock/cons/3.cc: Likewise.
1048         * testsuite/30_threads/shared_lock/cons/4.cc: Likewise.
1049         * testsuite/30_threads/shared_lock/cons/5.cc: Likewise.
1050         * testsuite/30_threads/shared_lock/cons/6.cc: Likewise.
1051         * testsuite/30_threads/shared_lock/locking/1.cc: Likewise.
1052         * testsuite/30_threads/shared_lock/locking/2.cc: Likewise.
1053         * testsuite/30_threads/shared_lock/locking/3.cc: Likewise.
1054         * testsuite/30_threads/shared_lock/locking/4.cc: Likewise.
1055         * testsuite/30_threads/shared_lock/modifiers/1.cc: Likewise.
1056         * testsuite/30_threads/shared_lock/requirements/
1057         explicit_instantiation.cc: Likewise.
1058         * testsuite/30_threads/shared_lock/requirements/typedefs.cc: Likewise.
1059         * testsuite/30_threads/shared_mutex/cons/1.cc: Likewise.
1060         * testsuite/30_threads/shared_mutex/cons/assign_neg.cc: Likewise.
1061         * testsuite/30_threads/shared_mutex/cons/copy_neg.cc: Likewise.
1062         * testsuite/30_threads/shared_mutex/requirements/standard_layout.cc:
1063         Likewise.
1064         * testsuite/30_threads/shared_mutex/try_lock/1.cc: Likewise.
1065         * testsuite/30_threads/shared_mutex/try_lock/2.cc: Likewise.
1066         * testsuite/30_threads/shared_mutex/unlock/1.cc: Likewise.
1067         * testsuite/30_threads/shared_timed_mutex/cons/1.cc: Likewise.
1068         * testsuite/30_threads/shared_timed_mutex/cons/assign_neg.cc: Likewise.
1069         * testsuite/30_threads/shared_timed_mutex/cons/copy_neg.cc: Likewise.
1070         * testsuite/30_threads/shared_timed_mutex/requirements/
1071         standard_layout.cc: Likewise.
1072         * testsuite/30_threads/shared_timed_mutex/try_lock/1.cc: Likewise.
1073         * testsuite/30_threads/shared_timed_mutex/try_lock/2.cc: Likewise.
1074         * testsuite/30_threads/shared_timed_mutex/try_lock/3.cc: Likewise.
1075         * testsuite/30_threads/shared_timed_mutex/unlock/1.cc: Likewise.
1076         * testsuite/30_threads/this_thread/1.cc: Likewise.
1077         * testsuite/30_threads/this_thread/2.cc: Likewise.
1078         * testsuite/30_threads/this_thread/3.cc: Likewise.
1079         * testsuite/30_threads/this_thread/4.cc: Likewise.
1080         * testsuite/30_threads/this_thread/58038.cc: Likewise.
1081         * testsuite/30_threads/thread/70503.cc: Likewise.
1082         * testsuite/30_threads/thread/84532.cc: Likewise.
1083         * testsuite/30_threads/thread/adl.cc: Likewise.
1084         * testsuite/30_threads/thread/cons/1.cc: Likewise.
1085         * testsuite/30_threads/thread/cons/2.cc: Likewise.
1086         * testsuite/30_threads/thread/cons/3.cc: Likewise.
1087         * testsuite/30_threads/thread/cons/4.cc: Likewise.
1088         * testsuite/30_threads/thread/cons/49668.cc: Likewise.
1089         * testsuite/30_threads/thread/cons/5.cc: Likewise.
1090         * testsuite/30_threads/thread/cons/6.cc: Likewise.
1091         * testsuite/30_threads/thread/cons/7.cc: Likewise.
1092         * testsuite/30_threads/thread/cons/8.cc: Likewise.
1093         * testsuite/30_threads/thread/cons/84535.cc: Likewise.
1094         * testsuite/30_threads/thread/cons/9.cc: Likewise.
1095         * testsuite/30_threads/thread/cons/assign_neg.cc: Likewise.
1096         * testsuite/30_threads/thread/cons/copy_neg.cc: Likewise.
1097         * testsuite/30_threads/thread/cons/lwg2097.cc: Likewise.
1098         * testsuite/30_threads/thread/cons/moveable.cc: Likewise.
1099         * testsuite/30_threads/thread/cons/terminate.cc: Likewise.
1100         * testsuite/30_threads/thread/id/operators.cc: Likewise.
1101         * testsuite/30_threads/thread/members/1.cc: Likewise.
1102         * testsuite/30_threads/thread/members/2.cc: Likewise.
1103         * testsuite/30_threads/thread/members/3.cc: Likewise.
1104         * testsuite/30_threads/thread/members/4.cc: Likewise.
1105         * testsuite/30_threads/thread/members/5.cc: Likewise.
1106         * testsuite/30_threads/thread/members/hardware_concurrency.cc:
1107         Likewise.
1108         * testsuite/30_threads/thread/native_handle/cancel.cc: Likewise.
1109         * testsuite/30_threads/thread/swap/1.cc: Likewise.
1110         * testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
1111         * testsuite/30_threads/timed_mutex/cons/assign_neg.cc: Likewise.
1112         * testsuite/30_threads/timed_mutex/cons/copy_neg.cc: Likewise.
1113         * testsuite/30_threads/timed_mutex/dest/destructor_locked.cc: Likewise.
1114         * testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
1115         * testsuite/30_threads/timed_mutex/native_handle/1.cc: Likewise.
1116         * testsuite/30_threads/timed_mutex/native_handle/typesizes.cc:
1117         Likewise.
1118         * testsuite/30_threads/timed_mutex/requirements/
1119         standard_layout.cc: Likewise.
1120         * testsuite/30_threads/timed_mutex/requirements/typedefs.cc: Likewise.
1121         * testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
1122         * testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
1123         * testsuite/30_threads/timed_mutex/try_lock_for/1.cc: Likewise.
1124         * testsuite/30_threads/timed_mutex/try_lock_for/2.cc: Likewise.
1125         * testsuite/30_threads/timed_mutex/try_lock_for/3.cc: Likewise.
1126         * testsuite/30_threads/timed_mutex/try_lock_until/1.cc: Likewise.
1127         * testsuite/30_threads/timed_mutex/try_lock_until/2.cc: Likewise.
1128         * testsuite/30_threads/timed_mutex/try_lock_until/57641.cc: Likewise.
1129         * testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
1130         * testsuite/30_threads/timed_mutex/unlock/2.cc: Likewise.
1131         * testsuite/30_threads/try_lock/1.cc: Likewise.
1132         * testsuite/30_threads/try_lock/2.cc: Likewise.
1133         * testsuite/30_threads/try_lock/3.cc: Likewise.
1134         * testsuite/30_threads/try_lock/4.cc: Likewise.
1135         * testsuite/30_threads/unique_lock/cons/1.cc: Likewise.
1136         * testsuite/30_threads/unique_lock/cons/2.cc: Likewise.
1137         * testsuite/30_threads/unique_lock/cons/3.cc: Likewise.
1138         * testsuite/30_threads/unique_lock/cons/4.cc: Likewise.
1139         * testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
1140         * testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
1141         * testsuite/30_threads/unique_lock/locking/1.cc: Likewise.
1142         * testsuite/30_threads/unique_lock/locking/2.cc: Likewise.
1143         * testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
1144         * testsuite/30_threads/unique_lock/locking/4.cc: Likewise.
1145         * testsuite/30_threads/unique_lock/modifiers/1.cc: Likewise.
1146         * testsuite/30_threads/unique_lock/requirements/
1147         explicit_instantiation.cc: Likewise.
1148         * testsuite/30_threads/unique_lock/requirements/typedefs.cc: Likewise.
1149
1150         * testsuite/30_threads/async/42819.cc: Remove dg-require-cstdint
1151         directive.
1152         * testsuite/30_threads/async/49668.cc: Likewise.
1153         * testsuite/30_threads/async/54297.cc: Likewise.
1154         * testsuite/30_threads/async/84532.cc: Likewise.
1155         * testsuite/30_threads/async/any.cc: Likewise.
1156         * testsuite/30_threads/async/async.cc: Likewise.
1157         * testsuite/30_threads/async/except.cc: Likewise.
1158         * testsuite/30_threads/async/forced_unwind.cc: Likewise.
1159         * testsuite/30_threads/async/launch.cc: Likewise.
1160         * testsuite/30_threads/async/lwg2021.cc: Likewise.
1161         * testsuite/30_threads/async/sync.cc: Likewise.
1162         * testsuite/30_threads/call_once/39909.cc: Likewise.
1163         * testsuite/30_threads/call_once/49668.cc: Likewise.
1164         * testsuite/30_threads/call_once/60497.cc: Likewise.
1165         * testsuite/30_threads/call_once/call_once1.cc: Likewise.
1166         * testsuite/30_threads/call_once/constexpr.cc: Likewise.
1167         * testsuite/30_threads/call_once/dr2442.cc: Likewise.
1168         * testsuite/30_threads/call_once/once_flag.cc: Likewise.
1169         * testsuite/30_threads/condition_variable/54185.cc: Likewise.
1170         * testsuite/30_threads/condition_variable/cons/1.cc: Likewise.
1171         * testsuite/30_threads/condition_variable/cons/assign_neg.cc:
1172         Likewise.
1173         * testsuite/30_threads/condition_variable/cons/copy_neg.cc: Likewise.
1174         * testsuite/30_threads/condition_variable/members/1.cc: Likewise.
1175         * testsuite/30_threads/condition_variable/members/2.cc: Likewise.
1176         * testsuite/30_threads/condition_variable/members/3.cc: Likewise.
1177         * testsuite/30_threads/condition_variable/members/53841.cc: Likewise.
1178         * testsuite/30_threads/condition_variable/members/68519.cc: Likewise.
1179         * testsuite/30_threads/condition_variable/native_handle/typesizes.cc:
1180         Likewise.
1181         * testsuite/30_threads/condition_variable/requirements/
1182         standard_layout.cc: Likewise.
1183         * testsuite/30_threads/condition_variable/requirements/typedefs.cc:
1184         * Likewise.
1185         * testsuite/30_threads/condition_variable_any/50862.cc: Likewise.
1186         * testsuite/30_threads/condition_variable_any/53830.cc: Likewise.
1187         * testsuite/30_threads/condition_variable_any/cons/1.cc: Likewise.
1188         * testsuite/30_threads/condition_variable_any/cons/assign_neg.cc:
1189         Likewise.
1190         * testsuite/30_threads/condition_variable_any/cons/copy_neg.cc:
1191         Likewise.
1192         * testsuite/30_threads/condition_variable_any/members/1.cc: Likewise.
1193         * testsuite/30_threads/condition_variable_any/members/2.cc: Likewise.
1194         * testsuite/30_threads/future/cons/assign_neg.cc: Likewise.
1195         * testsuite/30_threads/future/cons/constexpr.cc: Likewise.
1196         * testsuite/30_threads/future/cons/copy_neg.cc: Likewise.
1197         * testsuite/30_threads/future/cons/default.cc: Likewise.
1198         * testsuite/30_threads/future/cons/move.cc: Likewise.
1199         * testsuite/30_threads/future/cons/move_assign.cc: Likewise.
1200         * testsuite/30_threads/future/members/45133.cc: Likewise.
1201         * testsuite/30_threads/future/members/get.cc: Likewise.
1202         * testsuite/30_threads/future/members/get2.cc: Likewise.
1203         * testsuite/30_threads/future/members/share.cc: Likewise.
1204         * testsuite/30_threads/future/members/valid.cc: Likewise.
1205         * testsuite/30_threads/future/members/wait.cc: Likewise.
1206         * testsuite/30_threads/future/members/wait_for.cc: Likewise.
1207         * testsuite/30_threads/future/members/wait_until.cc: Likewise.
1208         * testsuite/30_threads/future/requirements/explicit_instantiation.cc:
1209         Likewise.
1210         * testsuite/30_threads/headers/condition_variable/types_std_c++0x.cc:
1211         Likewise.
1212         * testsuite/30_threads/headers/future/types_std_c++0x.cc: Likewise.
1213         * testsuite/30_threads/headers/mutex/types_std_c++0x.cc: Likewise.
1214         * testsuite/30_threads/headers/thread/std_c++0x_neg.cc: Likewise.
1215         * testsuite/30_threads/headers/thread/types_std_c++0x.cc: Likewise.
1216         * testsuite/30_threads/lock/1.cc: Likewise.
1217         * testsuite/30_threads/lock/2.cc: Likewise.
1218         * testsuite/30_threads/lock/3.cc: Likewise.
1219         * testsuite/30_threads/lock/4.cc: Likewise.
1220         * testsuite/30_threads/lock_guard/cons/1.cc: Likewise.
1221         * testsuite/30_threads/lock_guard/requirements/
1222         explicit_instantiation.cc: Likewise.
1223         * testsuite/30_threads/lock_guard/requirements/typedefs.cc: Likewise.
1224         * testsuite/30_threads/mutex/cons/1.cc: Likewise.
1225         * testsuite/30_threads/mutex/cons/assign_neg.cc: Likewise.
1226         * testsuite/30_threads/mutex/cons/constexpr.cc: Likewise.
1227         * testsuite/30_threads/mutex/cons/copy_neg.cc: Likewise.
1228         * testsuite/30_threads/mutex/dest/destructor_locked.cc: Likewise.
1229         * testsuite/30_threads/mutex/lock/1.cc: Likewise.
1230         * testsuite/30_threads/mutex/native_handle/1.cc: Likewise.
1231         * testsuite/30_threads/mutex/native_handle/typesizes.cc: Likewise.
1232         * testsuite/30_threads/mutex/requirements/standard_layout.cc::
1233         Likewise.
1234         * testsuite/30_threads/mutex/requirements/typedefs.cc: Likewise.
1235         * testsuite/30_threads/mutex/try_lock/1.cc: Likewise.
1236         * testsuite/30_threads/mutex/try_lock/2.cc: Likewise.
1237         * testsuite/30_threads/mutex/unlock/1.cc: Likewise.
1238         * testsuite/30_threads/mutex/unlock/2.cc: Likewise.
1239         * testsuite/30_threads/once_flag/cons/constexpr.cc: Likewise.
1240         * testsuite/30_threads/packaged_task/49668.cc: Likewise.
1241         * testsuite/30_threads/packaged_task/60564.cc: Likewise.
1242         * testsuite/30_threads/packaged_task/cons/1.cc: Likewise.
1243         * testsuite/30_threads/packaged_task/cons/2.cc: Likewise.
1244         * testsuite/30_threads/packaged_task/cons/3.cc: Likewise.
1245         * testsuite/30_threads/packaged_task/cons/56492.cc: Likewise.
1246         * testsuite/30_threads/packaged_task/cons/alloc.cc: Likewise.
1247         * testsuite/30_threads/packaged_task/cons/alloc2.cc: Likewise.
1248         * testsuite/30_threads/packaged_task/cons/alloc_min.cc: Likewise.
1249         * testsuite/30_threads/packaged_task/cons/assign_neg.cc: Likewise.
1250         * testsuite/30_threads/packaged_task/cons/copy_neg.cc: Likewise.
1251         * testsuite/30_threads/packaged_task/cons/move.cc: Likewise.
1252         * testsuite/30_threads/packaged_task/cons/move_assign.cc: Likewise.
1253         * testsuite/30_threads/packaged_task/members/at_thread_exit.cc:
1254         Likewise.
1255         * testsuite/30_threads/packaged_task/members/get_future.cc: Likewise.
1256         * testsuite/30_threads/packaged_task/members/get_future2.cc: Likewise.
1257         * testsuite/30_threads/packaged_task/members/invoke.cc: Likewise.
1258         * testsuite/30_threads/packaged_task/members/invoke2.cc: Likewise.
1259         * testsuite/30_threads/packaged_task/members/invoke3.cc: Likewise.
1260         * testsuite/30_threads/packaged_task/members/invoke4.cc: Likewise.
1261         * testsuite/30_threads/packaged_task/members/invoke5.cc: Likewise.
1262         * testsuite/30_threads/packaged_task/members/reset.cc: Likewise.
1263         * testsuite/30_threads/packaged_task/members/reset2.cc: Likewise.
1264         * testsuite/30_threads/packaged_task/members/swap.cc: Likewise.
1265         * testsuite/30_threads/packaged_task/members/valid.cc: Likewise.
1266         * testsuite/30_threads/packaged_task/requirements/
1267         explicit_instantiation.cc: Likewise.
1268         * testsuite/30_threads/packaged_task/uses_allocator.cc: Likewise.
1269         * testsuite/30_threads/promise/60966.cc: Likewise.
1270         * testsuite/30_threads/promise/69106.cc: Likewise.
1271         * testsuite/30_threads/promise/cons/1.cc: Likewise.
1272         * testsuite/30_threads/promise/cons/alloc.cc: Likewise.
1273         * testsuite/30_threads/promise/cons/alloc2.cc: Likewise.
1274         * testsuite/30_threads/promise/cons/alloc_min.cc: Likewise.
1275         * testsuite/30_threads/promise/cons/assign_neg.cc: Likewise.
1276         * testsuite/30_threads/promise/cons/copy_neg.cc: Likewise.
1277         * testsuite/30_threads/promise/cons/move.cc: Likewise.
1278         * testsuite/30_threads/promise/cons/move_assign.cc: Likewise.
1279         * testsuite/30_threads/promise/members/at_thread_exit.cc: Likewise.
1280         * testsuite/30_threads/promise/members/at_thread_exit2.cc: Likewise.
1281         * testsuite/30_threads/promise/members/get_future.cc: Likewise.
1282         * testsuite/30_threads/promise/members/get_future2.cc: Likewise.
1283         * testsuite/30_threads/promise/members/set_exception.cc: Likewise.
1284         * testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
1285         * testsuite/30_threads/promise/members/set_value.cc: Likewise.
1286         * testsuite/30_threads/promise/members/set_value2.cc: Likewise.
1287         * testsuite/30_threads/promise/members/set_value3.cc: Likewise.
1288         * testsuite/30_threads/promise/members/swap.cc: Likewise.
1289         * testsuite/30_threads/promise/requirements/explicit_instantiation.cc:
1290         * Likewise.
1291         * testsuite/30_threads/promise/uses_allocator.cc: Likewise.
1292
1293         * testsuite/18_support/numeric_limits/char16_32_t.cc: Qualify names
1294         from namespace std.
1295         * testsuite/20_util/align/2.cc: Remove dg-require-cstdint directive.
1296         * testsuite/20_util/duration/arithmetic/1.cc: Likewise.
1297         * testsuite/20_util/duration/arithmetic/2.cc: Likewise.
1298         * testsuite/20_util/duration/arithmetic/dr2020.cc: Likewise.
1299         * testsuite/20_util/duration/arithmetic/dr934-1.cc: Likewise.
1300         * testsuite/20_util/duration/arithmetic/dr934-2.cc: Likewise.
1301         * testsuite/20_util/duration/comparison_operators/1.cc: Likewise.
1302         * testsuite/20_util/duration/cons/1.cc: Likewise.
1303         * testsuite/20_util/duration/cons/1_neg.cc: Likewise.
1304         * testsuite/20_util/duration/cons/2.cc: Likewise.
1305         * testsuite/20_util/duration/cons/54025.cc: Likewise.
1306         * testsuite/20_util/duration/cons/dr974_neg.cc: Likewise.
1307         * testsuite/20_util/duration/requirements/explicit_instantiation/
1308         explicit_instantiation.cc: Likewise.
1309         * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
1310         * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
1311         * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
1312         * testsuite/20_util/make_signed/requirements/typedefs-4.cc: Likewise.
1313         * testsuite/20_util/ratio/comparisons/comp1.cc: Likewise.
1314         * testsuite/20_util/ratio/comparisons/comp2.cc: Likewise.
1315         * testsuite/20_util/ratio/comparisons/comp3.cc: Likewise.
1316         * testsuite/20_util/ratio/cons/cons1.cc: Likewise.
1317         * testsuite/20_util/ratio/operations/45866.cc: Likewise.
1318         * testsuite/20_util/ratio/operations/47913.cc: Likewise.
1319         * testsuite/20_util/ratio/operations/53840.cc: Likewise.
1320         * testsuite/20_util/ratio/operations/ops1.cc: Likewise.
1321         * testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
1322         * testsuite/20_util/system_clock/1.cc: Likewise.
1323         * testsuite/20_util/time_point/1.cc: Likewise.
1324         * testsuite/20_util/time_point/2.cc: Likewise.
1325         * testsuite/20_util/time_point/3.cc: Likewise.
1326         * testsuite/20_util/time_point/requirements/explicit_instantiation/
1327         explicit_instantiation.cc: Likewise.
1328         * testsuite/21_strings/basic_string/requirements/
1329         explicit_instantiation/char16_t/1.cc: Likewise.
1330         * testsuite/21_strings/basic_string/requirements/
1331         explicit_instantiation/char32_t/1.cc: Likewise.
1332         * testsuite/21_strings/basic_string_view/requirements/
1333         explicit_instantiation/char16_t/1.cc: Likewise.
1334         * testsuite/21_strings/basic_string_view/requirements/
1335         explicit_instantiation/char32_t/1.cc: Likewise.
1336         * testsuite/21_strings/char_traits/requirements/
1337         explicit_instantiation/char16_t/1.cc: Likewise.
1338         * testsuite/21_strings/char_traits/requirements/
1339         explicit_instantiation/char32_t/1.cc: Likewise.
1340         * testsuite/21_strings/headers/string/types_std_c++0x.cc: Likewise.
1341         * testsuite/22_locale/codecvt/char16_t.cc: Likewise.
1342         * testsuite/22_locale/codecvt/char32_t.cc: Likewise.
1343         * testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc:
1344         Likewise.
1345         * testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc:
1346         Likewise.
1347         * testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc:
1348         Likewise.
1349         * testsuite/22_locale/codecvt/utf8.cc: Likewise.
1350         * testsuite/23_containers/vector/bool/72847.cc: Likewise.
1351         * testsuite/23_containers/vector/debug/multithreaded_swap.cc:
1352         Likewise.
1353         * testsuite/experimental/string_view/requirements/
1354         explicit_instantiation/char16_t/1.cc: Likewise.
1355         * testsuite/experimental/string_view/requirements/
1356         explicit_instantiation/char32_t/1.cc: Likewise.
1357         * testsuite/ext/vstring/requirements/explicit_instantiation/char16_t/
1358         1.cc: Likewise.
1359         * testsuite/ext/vstring/requirements/explicit_instantiation/char32_t/
1360         1.cc: Likewise.
1361
1362         * include/ext/throw_allocator.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1363         (random_condition, throw_value_random, throw_allocator_random)
1364         (std::hash<throw_value_random>): Do not define when <tr1/random> is
1365         not usable.
1366         * src/c++11/cow-stdexcept.cc [!_GLIBCXX_USE_C99_STDINT_TR1]: Do not
1367         define transactional memory support when <stdint.h> is not usable.
1368
1369         * include/bits/hashtable_policy.h (__detail::__clp2): Use faster
1370         implementation that doesn't depend on <stdint.h> types.
1371         * include/std/memory (align) [!_GLIBCXX_USE_C99_STDINT_TR1]: Use
1372         std::size_t when std::uintptr_t is not usable.
1373         [!_GLIBCXX_USE_C99_STDINT_TR1] (pointer_safety, declare_reachable)
1374         (undeclare_reachable, declare_no_pointers, undeclare_no_pointers):
1375         Define independent of _GLIBCXX_USE_C99_STDINT_TR1.
1376
1377         * include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1378         (hash<u16string>, hash<u32string>): Remove dependency on
1379         _GLIBCXX_USE_C99_STDINT_TR1.
1380         * include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1381         (char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
1382         _GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
1383         __UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
1384         * include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1385         (codecvt<char16_t, char, mbstate_t>)
1386         (codecvt<char32_t, char, mbstate_t>)
1387         (codecvt_byname<char16_t, char, mbstate_t>)
1388         (codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
1389         on _GLIBCXX_USE_C99_STDINT_TR1.
1390         * include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1391         (_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
1392         * include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1393         (char_traits<char16_t>, char_traits<char32_t>)
1394         (basic_string<char16_t>, basic_string<char32_t>): Remove dependency
1395         on _GLIBCXX_USE_C99_STDINT_TR1.
1396         * include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
1397         (u16string_view, u32string_view, hash<u16string_view>)
1398         (hash<u32string_view>, operator""sv(const char16_t, size_t))
1399         (operator""sv(const char32_t, size_t)): Likewise.
1400         * include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1401         (hash<__u16vstring>, hash<__u32vstring>): Likewise.
1402         * include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1403         (__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
1404         (__u32sso_string, __u32rc_string): Likewise.
1405         * include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
1406         (codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
1407         * include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
1408         (u16string_view, u32string_view, hash<u16string_view>)
1409         (hash<u32string_view>, operator""sv(const char16_t, size_t))
1410         (operator""sv(const char32_t, size_t)): Likewise.
1411         * src/c++11/codecvt.cc: Likewise.
1412         * src/c++98/locale_init.cc: Likewise.
1413         * src/c++98/localename.cc: Likewise.
1414
1415         * include/bits/atomic_futex.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1416         (__atomic_futex_unsigned_base): Remove dependency on
1417         _GLIBCXX_USE_C99_STDINT_TR1 macro.
1418         * include/bits/unique_lock.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1419         (unique_lock): Remove dependency on _GLIBCXX_USE_C99_STDINT_TR1.
1420         * include/c_global/cstdint [!_GLIBCXX_USE_C99_STDINT_TR1] (intmax_t)
1421         (uintmax_t): Define using predefined macros.
1422         * include/std/chrono [!_GLIBCXX_USE_C99_STDINT_TR1] (duration)
1423         (time_point, system_clock, high_resolution_clock, steady_clock): Remove
1424         dependency on _GLIBCXX_USE_C99_STDINT_TR1 macro.
1425         (nanoseconds, microseconds, milliseconds, seconds, minutes, hours):
1426         [!_GLIBCXX_USE_C99_STDINT_TR1]: Define using __INT64_TYPE__ or
1427         long long when <stdint.h> is not usable.
1428         * include/std/condition_variable [!_GLIBCXX_USE_C99_STDINT_TR1]
1429         (condition_variable, condition_variable_any): Remove dependency on
1430         _GLIBCXX_USE_C99_STDINT_TR1.
1431         * include/std/future [!_GLIBCXX_USE_C99_STDINT_TR1] (future, promise)
1432         (packaged_task, async): Likewise.
1433         * include/std/mutex [!_GLIBCXX_USE_C99_STDINT_TR1] (recursive_mutex)
1434         (timed_mutex, recursive_timed_mutex, try_lock, lock, scoped_lock)
1435         (once_flag, call_once): Likewise.
1436         * include/std/ratio [!_GLIBCXX_USE_C99_STDINT_TR1] (ratio): Likewise.
1437         * include/std/shared_mutex [!_GLIBCXX_USE_C99_STDINT_TR1]
1438         (shared_mutex, shared_timed_mutex, shared_lock): Likewise.
1439         * include/std/thread [!_GLIBCXX_USE_C99_STDINT_TR1] (thread)
1440         (this_thread::get_id, this_thread::yield, this_thread::sleep_for)
1441         (this_thread::sleep_until): Likewise.
1442         * src/c++11/chrono.cc: Remove dependency on
1443         _GLIBCXX_USE_C99_STDINT_TR1 macro.
1444         * src/c++11/condition_variable.cc: Likewise.
1445         * src/c++11/futex.cc: Likewise.
1446         * src/c++11/future.cc: Likewise.
1447         * src/c++11/mutex.cc: Likewise.
1448         * src/c++11/thread.cc: Likewise.
1449         * testsuite/20_util/duration/literals/range_neg.cc: Adjust dg-error.
1450         * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
1451         * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
1452         * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
1453         * testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Likewise.
1454         * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Likewise.
1455
1456 2018-07-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1457
1458         PR libstdc++/77691
1459         * testsuite/experimental/memory_resource/new_delete_resource.cc:
1460         xfail execution on 32-bit Solaris/x86.
1461
1462 2018-07-26  Marc Glisse  <marc.glisse@inria.fr>
1463
1464         * include/bits/stl_vector.h (_Vector_impl_data::_M_copy_data): New.
1465         (_Vector_impl_data::_M_swap_data): Use _M_copy_data.
1466         (vector::_M_move_assign): Reorder the swaps.
1467
1468 2018-07-26  Jonathan Wakely  <jwakely@redhat.com>
1469
1470         PR libstdc++/86676
1471         * testsuite/20_util/monotonic_buffer_resource/release.cc: Request
1472         same alignment for post-release allocation.
1473
1474 2018-07-25  Jonathan Wakely  <jwakely@redhat.com>
1475
1476         PR libstdc++/86676
1477         * testsuite/20_util/monotonic_buffer_resource/release.cc: Allow for
1478         buffer being misaligned and so returned pointer not being at start.
1479
1480         * include/experimental/memory_resource: Include <cstddef> header.
1481
1482         * acinclude.m4 (glibcxx_SUBDIRS): Add src/c++17.
1483         * src/Makefile.am: Add comment.
1484         * src/c++17/Makefile.in: Regenerate.
1485
1486         * include/Makefile.am: Add new <bits/unique_lock.h> header.
1487         * include/Makefile.in: Regenerate.
1488         * include/bits/std_mutex.h [!_GLIBCXX_USE_C99_STDINT_TR1] (mutex)
1489         (lock_guard): Define independent of _GLIBCXX_USE_C99_STDINT_TR1.
1490         (unique_lock): Move definition to ...
1491         * include/bits/unique_lock.h: New header.
1492         [!_GLIBCXX_USE_C99_STDINT_TR1] (unique_lock): Define unconditionally.
1493         [_GLIBCXX_USE_C99_STDINT_TR1] (unique_lock(mutex_type&, time_point))
1494         (unique_lock(mutex_type&, duration), unique_lock::try_lock_until)
1495         (unique_lock::try_lock_for): Define only when <chrono> is usable.
1496         * include/std/condition_variable: Include <bits/unique_lock.h>.
1497         * include/std/mutex: Likewise.
1498
1499 2018-07-24  Jonathan Wakely  <jwakely@redhat.com>
1500
1501         * config/abi/pre/gnu.ver: Export new symbols.
1502         * configure: Regenerate.
1503         * include/Makefile.am: Add new <memory_resource> header.
1504         * include/Makefile.in: Regenerate.
1505         * include/precompiled/stdc++.h: Include <memory_resource> for C++17.
1506         * include/std/memory_resource: New header.
1507         (memory_resource, polymorphic_allocator, new_delete_resource)
1508         (null_memory_resource, set_default_resource, get_default_resource)
1509         (pool_options, monotonic_buffer_resource): Define.
1510         * src/Makefile.am: Add c++17 directory.
1511         * src/Makefile.in: Regenerate.
1512         * src/c++11/Makefile.am: Fix comment.
1513         * src/c++17/Makefile.am: Add makefile for new sub-directory.
1514         * src/c++17/Makefile.in: Generate.
1515         * src/c++17/memory_resource.cc: New.
1516         (newdel_res_t, null_res_t, constant_init, newdel_res, null_res)
1517         (default_res, new_delete_resource, null_memory_resource)
1518         (set_default_resource, get_default_resource): Define.
1519         * testsuite/20_util/memory_resource/1.cc: New test.
1520         * testsuite/20_util/memory_resource/2.cc: New test.
1521         * testsuite/20_util/monotonic_buffer_resource/1.cc: New test.
1522         * testsuite/20_util/monotonic_buffer_resource/allocate.cc: New test.
1523         * testsuite/20_util/monotonic_buffer_resource/deallocate.cc: New test.
1524         * testsuite/20_util/monotonic_buffer_resource/release.cc: New test.
1525         * testsuite/20_util/monotonic_buffer_resource/upstream_resource.cc:
1526         New test.
1527         * testsuite/20_util/polymorphic_allocator/1.cc: New test.
1528         * testsuite/20_util/polymorphic_allocator/resource.cc: New test.
1529         * testsuite/20_util/polymorphic_allocator/select.cc: New test.
1530         * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
1531         Define concrete memory resource for testing.
1532         (__gnu_test::default_resource_mgr): Define RAII helper for changing
1533         default resource.
1534
1535         PR libstdc++/86658
1536         * include/bits/stl_algobase.h (__niter_wrap<_Iterator>): Pass unused
1537         parameter by reference, to avoid copying invalid iterators.
1538         * testsuite/25_algorithms/copy/86658.cc: New test.
1539
1540         * include/std/bit (__countl_zero, __countr_zero, __popcount): Use
1541         local variables for number of digits instead of type aliases.
1542         (__log2p1): Remove redundant branch also checked in __countl_zero.
1543
1544         * include/bits/uses_allocator.h (__is_erased_or_convertible): Reorder
1545         conditions. Add comments.
1546         * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error line.
1547         * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
1548         * testsuite/20_util/scoped_allocator/69293_neg.cc: Likewise.
1549
1550         * include/bits/uses_allocator.h (__is_erased_or_convertible): Remove.
1551         (__uses_allocator_helper): Check conditions directly instead of
1552         using __is_erased_or_convertible.
1553
1554         * include/experimental/memory_resource: Adjust comments and
1555         whitespace.
1556         (__resource_adaptor_imp): Add second template parameter for type of
1557         memory resource base class.
1558         (memory_resource): Define default constructor, destructor, copy
1559         constructor and copy assignment operator as defaulted.
1560
1561         PR libstdc++/70966
1562         * include/experimental/memory_resource (__get_default_resource): Use
1563         placement new to create an object with dynamic storage duration.
1564
1565 2018-07-23  Jonathan Wakely  <jwakely@redhat.com>
1566
1567         PR libstdc++/70940
1568         * include/experimental/memory_resource
1569         (__resource_adaptor_common::_AlignMgr::_M_unadjust): Add assertion.
1570         (__resource_adaptor_common::__guaranteed_alignment): New helper to
1571         give maximum alignment an allocator guarantees. Specialize for known
1572         allocators using new and malloc.
1573         (__resource_adaptor_imp::do_allocate): Use __guaranteed_alignment.
1574         (__resource_adaptor_imp::do_deallocate): Likewise.
1575         * testsuite/experimental/memory_resource/new_delete_resource.cc:
1576         Check that new and delete are called with expected sizes.
1577
1578 2018-07-20  Jonathan Wakely  <jwakely@redhat.com>
1579
1580         PR libstdc++/86595
1581         * include/bits/fs_dir.h (directory_entry::refresh(error_code&)): Add
1582         noexcept.
1583
1584 2018-07-20  Fangrui Song  <maskray@google.com>
1585
1586         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Use
1587         _GLIBCXX_VISIBILITY(default).
1588
1589 2018-07-20  Jonathan Wakely  <jwakely@redhat.com>
1590
1591         PR libstdc++/86603
1592         * include/std/version: Move __cpp_lib_list_remove_return_type macro.
1593
1594 2018-07-19  Jonathan Wakely  <jwakely@redhat.com>
1595
1596         * include/std/type_traits (__is_member_object_pointer_helper): Use
1597         __not_<is_function<_Tp>>::type instead of integral_constant.
1598         (__is_member_function_pointer_helper): Likewise for
1599         is_function<_Tp>::type.
1600         (is_compund): Likewise for __not_<is_fundamental<_Tp>>::type.
1601         (__do_is_nt_destructible_impl): Use __bool_constant and reindent.
1602         (is_trivially_constructible): Remove redundant use of
1603         is_constructible.
1604         (__is_trivially_copy_assignable_impl): Remove redundant use of
1605         is_copy_assignable.
1606         (__is_trivially_move_assignable_impl): Remove redundant use of
1607         is_move_assignable.
1608         (is_trivially_destructible): Use __bool_constant.
1609         * testsuite/20_util/is_trivially_assignable/value.cc: Add some more
1610         tests for scalar types.
1611
1612 2018-07-19  Glen Joseph Fernandes  <glenjofe@gmail.com>
1613
1614         * include/bits/stl_algobase.h (__copy_move_a): Used
1615         __is_trivially_copyable.
1616         (__copy_move_backward_a): Likewise.
1617         * testsuite/20_util/specialized_algorithms/uninitialized_copy/1.cc:
1618         New test.
1619
1620 2018-07-17  Jonathan Wakely  <jwakely@redhat.com>
1621
1622         PR libstdc++/86450
1623         * acinclude.m4 (GLIBCXX_CHECK_COMPILER_FEATURES): Don't define WERROR.
1624         (GLIBCXX_EXPORT_FLAGS): Use -Wabi=2 instead of -Wabi.
1625         * configure: Regenerate.
1626         * configure.ac: Change GLIBCXX_ENABLE_WERROR default to "no".
1627         * doc/Makefile.in: Regenerate.
1628         * fragment.am: Set WERROR_FLAG to -Werror instead of $(WERROR).
1629         * include/Makefile.in: Regenerate.
1630         * libsupc++/Makefile.in: Regenerate.
1631         * po/Makefile.in: Regenerate.
1632         * python/Makefile.in: Regenerate.
1633         * src/Makefile.in: Regenerate.
1634         * src/c++11/Makefile.in: Regenerate.
1635         * src/c++11/debug.cc: Use diagnostic pragmas to suppress warnings
1636         from -Wabi=2 that don't affect exported symbols.
1637         * src/c++98/Makefile.in: Regenerate.
1638         * src/filesystem/Makefile.in: Regenerate.
1639         * testsuite/Makefile.in: Regenerate.
1640
1641         * src/c++11/compatibility-thread-c++0x.cc [_GLIBCXX_SHARED]
1642         (_Async_state_common::_M_join): Simplify use of std::call_once and
1643         corresponding explicit instantiation.
1644         (_Maybe_wrap_member_pointer, _Bind_simple, _Bind_simple_helper)
1645         (__bind_simple): Remove definitions and explicit instantiation that
1646         are not required by exported symbols.
1647
1648 2018-07-16  Jonathan Wakely  <jwakely@redhat.com>
1649
1650         * scripts/create_testsuite_files: Fix typo in comment.
1651
1652         PR libstdc++/86537
1653         * include/bits/shared_ptr.h (less<shared_ptr<_Tp>>): Remove
1654         non-standard partial specialization.
1655         * include/bits/shared_ptr_base.h (_Sp_less): Remove class definition.
1656         (less<__shared_ptr<_Tp, _Lp>): Remove partial specialization.
1657         * testsuite/20_util/shared_ptr/comparison/86537.cc: New test.
1658
1659 2018-07-16  Andreas Krebbel  <krebbel@linux.ibm.com>
1660
1661         * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update.
1662         * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Update.
1663         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1664
1665 2018-07-06  François Dumont  <fdumont@gcc.gnu.org>
1666
1667         * include/debug/functions.h (__gnu_debug::__check_string): Move...
1668         * include/debug/string (__gnu_debug::__check_string): ... here.
1669         (_GLIBCXX_DEBUG_VERIFY_STR_COND_AT): New.
1670         (__glibcxx_check_string_n_constructor): New.
1671         (__gnu_debug::basic_string<>(const _CharT*, size_type, const _Alloc&)):
1672         Use latter.
1673         (__glibcxx_check_string_constructor): New.
1674         (__gnu_debug::basic_string<>(const _CharT*, const _Alloc&)):
1675         Use latter.
1676         * testsuite/21_strings/basic_string/debug/1_neg.cc: New.
1677         * testsuite/21_strings/basic_string/debug/2_neg.cc: New.
1678
1679 2018-07-06  Jonathan Wakely  <jwakely@redhat.com>
1680
1681         PR libstdc++/84928 use std::move in <numeric> algorithms
1682         * include/bits/stl_numeric.h (_GLIBCXX_MOVE_IF_20): Define macro to
1683         conditionally move, according to __cplusplus value.
1684         (accumulate, inner_product, partial_sum, adjacent_difference): Use
1685         _GLIBCXX_MOVE_IF_20.
1686         * testsuite/26_numerics/accumulate/lwg2055.cc: New test.
1687         * testsuite/26_numerics/adjacent_difference/lwg2055.cc: New test.
1688         * testsuite/26_numerics/inner_product/lwg2055.cc: New test.
1689         * testsuite/26_numerics/partial_sum/lwg2055.cc: New test.
1690
1691         * config/abi/pre/gnu.ver: Use wildcards to combine related patterns.
1692
1693         P0935R0 Eradicating unnecessarily explicit default constructors
1694         * config/abi/pre/gnu.ver: Tighten existing patterns and export new
1695         default constructor symbols.
1696         * include/std/sstream (basic_stringbuf, basic_istringstream)
1697         (basic_ostringstream, basic_stringstream): Remove default arguments
1698         from explicit constructors taking ios_base::openmode and add separate
1699         non-explicit default constructors.
1700         * testsuite/27_io/basic_istringstream/cons/default.cc: New.
1701         * testsuite/27_io/basic_ostringstream/cons/default.cc: New.
1702         * testsuite/27_io/basic_stringstream/cons/default.cc: New.
1703         * testsuite/27_io/basic_stringbuf/cons/char/default.cc: New.
1704         * testsuite/27_io/basic_stringbuf/cons/wchar_t/default.cc: New.
1705
1706         * include/std/variant (__accepted_index): Use void_t.
1707
1708 2018-07-05  Jonathan Wakely  <jwakely@redhat.com>
1709
1710         PR libstdc++/85831
1711         * config/abi/pre/gnu.ver: Export move constructors and move
1712         assignment operators for std::logic_error and std::runtime_error.
1713         * include/std/stdexcept: Use _GLIBCXX_NOTHROW instead of
1714         _GLIBCXX_USE_NOEXCEPT.
1715         (logic_error, runtime_error): Declare move constructors and move
1716         assignment operators. When not declared already, define copy
1717         constructors and copy assignment operators as explicit-defaulted.
1718         (domain_error, invalid_argument, length_error, out_of_range)
1719         (overflow_error, underflow_error): Define move constructors and move
1720         assignment operators as explicitly-defaulted.
1721         * libsupc++/exception.h (exception): Likewise.
1722         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Define
1723         move constructors and move assignment operators as defaulted.
1724         * testsuite/19_diagnostics/stdexcept.cc: Check that constructors and
1725         assignment operators are defined.
1726
1727         * testsuite/21_strings/basic_string/cons/char/deduction.cc: XFAIL for
1728         COW strings.
1729         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
1730         Likewise.
1731         * testsuite/21_strings/basic_string/requirements/
1732         explicit_instantiation/debug.cc: Likewise.
1733
1734         PR libstdc++/58265
1735         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
1736         (basic_string::assign(basic_string&&)): Add conditional noexcept
1737         depending on the allocator's is_always_equal property (LWG 2063).
1738         * testsuite/21_strings/basic_string/modifiers/assign/char/
1739         move_assign.cc: Check for non-throwing exception specification.
1740         * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
1741         move_assign.cc: Likewise.
1742
1743         PR libstdc++/58265
1744         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
1745         [_GLIBCXX_FULLY_DYNAMIC_STRING==0] (basic_string::basic_string()):
1746         Add GLIBCXX_NOEXCEPT.
1747         (basic_string::operator=(basic_string&&)): Add _GLIBCXX_NOEXCEPT_IF
1748         to depend on the allocator's is_always_equal property (LWG 2063).
1749         (basic_string::swap(basic_string&)): Likewise.
1750         * include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI]
1751         (basic_string::swap(basic_string&)): Likewise.
1752         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc:
1753         Check is_nothrow_move_assignable.
1754         * testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc:
1755         Check is_nothrow_move_assignable.
1756         * testsuite/21_strings/basic_string/cons/char/
1757         noexcept_move_construct.cc: Likewise.
1758         * testsuite/21_strings/basic_string/cons/wchar_t/
1759         noexcept_move_construct.cc: Likewise.
1760
1761 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
1762
1763         P0646R1 Improving the Return Value of Erase-Like Algorithms I
1764         * include/bits/forward_list.h (__cpp_lib_list_remove_return_type):
1765         Define.
1766         (forward_list::__remove_return_type): Define typedef as size_type or
1767         void, according to __cplusplus value.
1768         (_GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
1769         empty, according to __cplusplus value.
1770         (forward_list::remove, forward_list::unique): Use typedef and macro
1771         to change return type and add abi-tag for C++2a.
1772         (forward_list::remove_if<Pred>, forward_list::unique<BinPred>): Use
1773         typedef to change return type for C++2a.
1774         * include/bits/forward_list.tcc (_GLIBCXX20_ONLY): Define macro.
1775         (forward_list::remove, forward_list::remove_if<Pred>)
1776         (forward_list::unique<BinPred>): Return number of removed elements
1777         for C++2a.
1778         * include/bits/list.tcc (_GLIBCXX20_ONLY): Define macro.
1779         (list::remove, list::unique, list::remove_if<Predicate>)
1780         (list::unique<BinaryPredicate>): Return number of removed elements
1781         for C++2a.
1782         * include/bits/stl_list.h (__cpp_lib_list_remove_return_type): Define.
1783         (list::__remove_return_type): Define typedef as size_type or
1784         void, according to __cplusplus value.
1785         (_GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
1786         empty, according to __cplusplus value.
1787         (list::remove, list::unique): Use typedef and macro to change return
1788         type and add abi-tag for C++2a.
1789         (list::remove_if<Predicate>, list::unique<BinaryPredicate>): Use
1790         typedef to change return type for C++2a.
1791         * include/std/version (__cpp_lib_list_remove_return_type): Define.
1792         * testsuite/23_containers/forward_list/operations/
1793         remove_cxx20_return.cc: New.
1794         * testsuite/23_containers/forward_list/operations/
1795         unique_cxx20_return.cc: New.
1796
1797         P0458R2 Checking for Existence of an Element in Associative Containers
1798         * include/bits/stl_map.h (map::contains): Add for C++2a.
1799         * include/bits/stl_multimap.h (multimap::contains): Likewise.
1800         * include/bits/stl_multiset.h (multiset::contains): Likewise.
1801         * include/bits/stl_set.h (set::contains): Likewise.
1802         * include/bits/stl_tree.h (__has_is_transparent_t): Define alias.
1803         (_Rb_tree::_M_find_tr, _Rb_tree::_M_count_tr)
1804         (_Rb_tree::_M_lower_bound_tr, _Rb_tree::_M_upper_bound_tr)
1805         (_Rb_tree::_M_equal_range_tr): Use __has_is_transparent_t.
1806         * include/bits/unordered_map.h (unordered_map::contains)
1807         (unordered_multimap::contains): Add for C++2a.
1808         * include/bits/unordered_set.h (unordered_set::contains)
1809         (unordered_multiset::contains): Likewise.
1810         * testsuite/23_containers/map/operations/contains.cc: New.
1811         * testsuite/23_containers/multimap/operations/contains.cc: New.
1812         * testsuite/23_containers/multiset/operations/contains.cc: New.
1813         * testsuite/23_containers/set/operations/contains.cc: New.
1814         * testsuite/23_containers/unordered_map/operations/contains.cc: New.
1815         * testsuite/23_containers/unordered_multimap/operations/contains.cc:
1816         New.
1817         * testsuite/23_containers/unordered_multiset/operations/contains.cc:
1818         New.
1819         * testsuite/23_containers/unordered_set/operations/contains.cc: New.
1820
1821 2018-07-04  François Dumont  <fdumont@gcc.gnu.org>
1822
1823         PR libstdc++/86272
1824         * include/debug/string
1825         (__gnu_debug::basic_string<>::insert<_Ite>(const_iterator, _Ite, _Ite)):
1826         Use __glibcxx_check_insert_range.
1827         * 21_strings/basic_string/cons/char/1.cc: Adapt test to use
1828         __gnu_debug::string when _GLIBCXX_DEBUG.
1829         * 21_strings/basic_string/init-list.cc: Likewise.
1830         * 21_strings/basic_string/modifiers/insert/char/1.cc: Likewise.
1831         * 21_strings/basic_string/modifiers/insert/char/2.cc: Likewise.
1832         * 21_strings/basic_string/modifiers/insert/char/83328.cc: Likewise.
1833         * 21_strings/basic_string/types/1.cc: Likewise.
1834
1835 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
1836
1837         * testsuite/25_algorithms/make_heap/complexity.cc: Require effective
1838         target for std::random_device.
1839         * testsuite/26_numerics/random/random_device/cons/default.cc:
1840         Likewise.
1841         * testsuite/experimental/algorithm/sample-2.cc: Likewise.
1842         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
1843         * testsuite/experimental/random/randint.cc: Likewise.
1844         * testsuite/lib/libstdc++.exp
1845         (check_effective_target_random_device): New proc.
1846
1847 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
1848             Jakub Jelinek  <jakub@redhat.com>
1849
1850         * include/std/bit (__rotl, __rotr): Fix for non-power of two sizes.
1851
1852 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
1853
1854         PR libstdc++/86398
1855         * include/std/type_traits (is_trivially_constructible): Check
1856         is_constructible before __is_trivially_constructible.
1857         * testsuite/20_util/is_trivially_constructible/value.cc: Add more
1858         tests, including negative cases.
1859         * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Use
1860         zero for dg-error lineno.
1861         * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
1862         Likewise.
1863
1864         * include/std/bit (__rotl, __rotr): Avoid branch.
1865         (_If_is_unsigned_integer): Use remove_cv_t.
1866         * testsuite/26_numerics/bit/bitops.count/popcount.cc: New.
1867
1868 2018-07-03  Jonathan Wakely  <jwakely@redhat.com>
1869
1870         P0556R3 Integral power-of-2 operations, P0553R2 Bit operations
1871         * include/Makefile.am: Add new header.
1872         * include/Makefile.in: Regenerate.
1873         * include/precompiled/stdc++.h: Include new header.
1874         * include/std/bit: New header.
1875         (__rotl, __rotr, __countl_zero, __countl_one, __countr_zero)
1876         (__countr_one, __popcount, __ispow2, __ceil2, __floor2, __log2p1):
1877         Define for C++14.
1878         [!__STRICT_ANSI__] (rotl, rotr, countl_zero, countl_one, countr_zero)
1879         (countr_one, popcount): Define for C++2a. Also overload for std::byte.
1880         (ispow2, ceil2, floor2, log2p1): Define for C++2a.
1881         [!__STRICT_ANSI__] (ispow2, ceil2, floor2, log2p1): Overload for
1882         std::byte.
1883         * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: New.
1884         * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: New.
1885         * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: New.
1886         * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: New.
1887         * testsuite/26_numerics/bit/bitops.rot/rotl.cc: New.
1888         * testsuite/26_numerics/bit/bitops.rot/rotr.cc: New.
1889         * testsuite/26_numerics/bit/bitops.count/countl_one.cc: New.
1890         * testsuite/26_numerics/bit/bitops.count/countl_zero.cc: New.
1891         * testsuite/26_numerics/bit/bitops.count/countr_one.cc: New.
1892         * testsuite/26_numerics/bit/bitops.count/countr_zero.cc: New.
1893
1894         * include/bits/alloc_traits.h: Remove redundant preprocessor
1895         condition.
1896
1897 2018-07-03  François Dumont  <fdumont@gcc.gnu.org>
1898
1899         * include/bits/stl_algobase.h (__niter_wrap): New.
1900         (__copy_move_a2(_II, _II, _OI)): Use latter.
1901         (__copy_move_backward_a2(_BI1, _BI1, _BI2)): Likewise.
1902         (fill_n(_OI, _Size, const _Tp&)): Likewise.
1903         (equal(_II1, _II1, _II2)): Use __glibcxx_requires_can_increment.
1904         * include/debug/stl_iterator.h
1905         (std::__niter_base(const __gnu_cxx::_Safe_iterator<
1906         __gnu_cxx::__normal_iterator<>, _Sequence>&)): New declaration.
1907         * include/debug/vector (__niter_base(const __gnu_cxx::_Safe_iterator<
1908         __gnu_cxx::__normal_iterator<>, _Sequence>&)): New.
1909
1910 2018-07-02  Jonathan Wakely  <jwakely@redhat.com>
1911
1912         P0758R1 Implicit conversion traits
1913         * include/std/type_traits [__cplusplus > 201703]
1914         (__is_convertible_helper::__is_nothrow_type): Define new member.
1915         (__is_convertible_helper<_From, _To, false>::__test_aux1): Add
1916         noexcept.
1917         (__is_convertible_helper<_From, _To, false>::__test_nothrow)
1918         (__is_convertible_helper<_From, _To, false>::__is_nothrow_type): Add
1919         new members.
1920         (is_nothrow_convertible, is_nothrow_convertible_v): Define for C++2a.
1921         * testsuite/20_util/is_nothrow_convertible/value.cc: New.
1922         * testsuite/20_util/is_nothrow_convertible/requirements/
1923         explicit_instantiation.cc: New.
1924         * testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
1925         New.
1926
1927         P0887R1 The identity metafunction
1928         * include/std/type_traits (type_identity, type_identity_t): Define
1929         for C++2a.
1930         * testsuite/20_util/type_identity/requirements/alias_decl.cc: New.
1931         * testsuite/20_util/type_identity/requirements/
1932         explicit_instantiation.cc:New.
1933         * testsuite/20_util/type_identity/requirements/typedefs.cc: New.
1934
1935         * include/bits/regex.h (sub_match::operator string_type): Call str().
1936         (sub_match::compare): Use _M_str() instead of str().
1937         (sub_match::_M_compare): New public function.
1938         (sub_match::__string_view): New helper type.
1939         (sub_match::_M_str): New overloaded functions to avoid creating a
1940         string_type object when not needed.
1941         (operator==, operator!=, operator<, operator>, operator<=, operator>=):
1942         Use sub_match::_M_compare instead of creating string_type objects.
1943         Fix Doxygen comments.
1944         * include/bits/regex_compiler.h (__has_contiguous_iter): Remove.
1945         (__is_contiguous_normal_iter): Rename to __is_contiguous_iter and
1946         simplify.
1947         (__enable_if_contiguous_iter, __disable_if_contiguous_iter): Use
1948         __enable_if_t.
1949         * include/std/type_traits (__enable_if_t): Define for C++11.
1950         * testsuite/28_regex/sub_match/compare.cc: New.
1951         * testsuite/util/testsuite_iterators.h (remove_cv): Add transformation
1952         trait.
1953         (input_iterator_wrapper): Use remove_cv for value_type argument of
1954         std::iterator base class.
1955
1956 2018-06-29  Jonathan Wakely  <jwakely@redhat.com>
1957
1958         * testsuite/20_util/add_rvalue_reference/requirements/alias_decl.cc:
1959         Add whitespace to dejagnu directive.
1960         * testsuite/23_containers/array/element_access/at_neg.cc: Likewise.
1961
1962 2018-06-27  François Dumont  <fdumont@gcc.gnu.org>
1963
1964         * include/bits/stl_vector.h
1965         (struct _Vector_base<>::_Vector_impl_data): New.
1966         (struct _Vector_base<>::_Vector_impl): Inherit from latter.
1967         (_Vector_base<>::_Vector_impl::_M_swap_data): Move...
1968         (_Vector_base<>::_Vector_impl_data::_M_swap_data): ...here.
1969         (_Vector_base<>::_Vector_impl()): Add noexcept qualification.
1970         (_Vector_base<>::_Vector_impl(_Vector_impl&&)): New.
1971         (_Vector_base<>::_Vector_impl(_Tp_alloc_type&&, _Vector_impl&&)): New.
1972         (_Vector_base(const allocator_type&, _Vector_base&&)): New, use latter.
1973         (_Vector_base()): Default.
1974         (_Vector_base(_Vector_base&&)): Default.
1975         (_Vector_base(size_t)) [_GLIBCXX_INLINE_VERSION]: Delete.
1976         (_Vector_base(_Tp_alloc_type&&)) [_GLIBCXX_INLINE_VERSION]: Delete.
1977         (_Vector_base::_M_create_storage(size_t)): Make protected.
1978         (vector()): Default.
1979         (vector(vector&&)): Default.
1980         (vector(vector&&, const allocator_type&, true_type)): New.
1981         (vector(vector&&, const allocator_type&, false_type)): New.
1982         (vector(vector&&, const allocator_type&)): Use latters.
1983         (vector(_InputIte, _InputIte, const allocator_type&)): Call
1984         _M_range_initialize directly.
1985         * include/debug/vector
1986         (vector(vector&&, const allocator_type&)): Add noexcept qualification.
1987         * testsuite/23_containers/vector/allocator/default_init.cc: New.
1988         * testsuite/23_containers/vector/cons/noexcept_move_construct.cc: Add
1989         static assertions.
1990
1991 2018-06-27  Jonathan Wakely  <jwakely@redhat.com>
1992
1993         * include/bits/cpp_type_traits.h [__cplusplus >= 201703]
1994         (__is_byte<byte>): Define specialization for std::byte.
1995
1996         PR libstdc++/86138
1997         * include/bits/basic_string.tcc: [_GLIBCXX_EXTERN_TEMPLATE < 0]
1998         Declare explicit instantiations of COW empty reps and I/O functions.
1999
2000 2018-06-26  David Edelsohn  <dje.gcc@gmail.com>
2001
2002         * testsuite/experimental/algorithm/sample-2.cc: Add TLS DejaGNU
2003         directives.
2004         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
2005
2006 2018-06-26  Jonathan Wakely  <jwakely@redhat.com>
2007
2008         * include/bits/regex.tcc (regex_iterator::operator==): Add missing
2009         noexcept.
2010
2011 2018-06-25  Jonathan Wakely  <jwakely@redhat.com>
2012
2013         PR libstdc++/86112
2014         * python/libstdcxx/v6/printers.py (add_one_template_type_printer):
2015         Replace dict comprehension.
2016
2017         PR libstdc++/81092
2018         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
2019
2020         PR libstdc++/86292
2021         * include/bits/stl_vector.h (vector::_M_range_initialize<InputIter>):
2022         Add try-catch block.
2023         * testsuite/23_containers/vector/cons/86292.cc: New.
2024
2025         * doc/xml/manual/status_cxx2017.xml: Document N4531 status.
2026
2027         * include/experimental/algorithm (sample, shuffle): Add new overloads
2028         using per-thread random number engine.
2029         * testsuite/experimental/algorithm/sample.cc: Simpify and reduce
2030         dependencies by using __gnu_test::test_container.
2031         * testsuite/experimental/algorithm/sample-2.cc: New.
2032         * testsuite/experimental/algorithm/shuffle.cc: New.
2033
2034 2018-06-22  Jonathan Wakely  <jwakely@redhat.com>
2035
2036         * config/abi/pre/gnu.ver: Fix __cxx11::basic_string patterns for
2037         different size_t mangling on 32-bit targets.
2038
2039         PR libstdc++/86280
2040         * include/experimental/memory_resource
2041         (__resource_adaptor_common::_AlignMgr::_M_token_size): Use type large
2042         enough for result of left shift.
2043
2044         PR libstdc++/86138
2045         * include/bits/basic_string.tcc:
2046         [__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI]
2047         (basic_string<char>::_Rep::_S_empty_rep_storage)
2048         (basic_string<wchar_t>::_Rep::_S_empty_rep_storage): Add explicit
2049         instantiation declarations.
2050         [__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable
2051         explicit instantiation declarations.
2052         * testsuite/21_strings/basic_string/cons/char/86138.cc: New.
2053         * testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New.
2054
2055 2018-06-21  Jonathan Wakely  <jwakely@redhat.com>
2056
2057         PR libstdc++/83328
2058         * acinclude.m4 (libtool_VERSION): Bump to 6:26:0.
2059         * config/abi/pre/gnu.ver: Add GLIBCXX_3.4.26 and export new symbol.
2060         * configure: Regenerate.
2061         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
2062         (basic_string::insert(const_iterator, initializer_list<C>)): Add.
2063         [_GLIBCXX_USE_CXX11_ABI && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
2064         (basic_string::insert(iterator, initializer_list<C>)): Suppress
2065         definition.
2066         * include/debug/string (basic_string::insert(iterator, C)): Change
2067         first parameter to const_iterator.
2068         (basic_string::insert(iterator, size_type, C)): Likewise. Change
2069         return type to iterator.
2070         (basic_string::insert(iterator, InputIterator, InputIterator)):
2071         Likewise.
2072         (basic_string::insert(iterator, initializer_list<C>)): Change first
2073         parameter to const_iterator and return type to iterator.
2074         * src/c++11/string-inst.cc: Extend comment.
2075         * testsuite/21_strings/basic_string/modifiers/insert/char/83328.cc:
2076         New.
2077         * testsuite/21_strings/basic_string/modifiers/insert/wchar_t/83328.cc:
2078         New.
2079         * testsuite/util/testsuite_abi.cc: Add new symbol version.
2080
2081         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
2082
2083         PR libstdc++/70940
2084         * include/experimental/memory_resource
2085         (__resource_adaptor_imp::do_deallocate): Add missing return.
2086         * testsuite/experimental/memory_resource/new_delete_resource.cc: New.
2087         * testsuite/experimental/memory_resource/resource_adaptor.cc: Test
2088         resource_adaptor with std::allocator, __gnu_cxx::new_allocator and
2089         __gnu_cxx::malloc_allocator.
2090
2091         PR libstdc++/70940
2092         * include/experimental/memory_resource (__resource_adaptor_common):
2093         New base class.
2094         (__resource_adaptor_common::_AlignMgr): Helper for obtaining aligned
2095         pointer from unaligned, and vice versa.
2096         (__resource_adaptor_imp::do_allocate): Use _AlignMgr to adjust
2097         allocated pointer to meet alignment request.
2098         (__resource_adaptor_imp::do_deallocate): Use _AlignMgr to retrieve
2099         original pointer for deallocation.
2100         (__resource_adaptor_imp::do_is_equal): Reformat.
2101         (__resource_adaptor_imp::_S_aligned_size): Remove.
2102         (__resource_adaptor_imp::_S_supported): Remove.
2103         (new_delete_resource): Use __gnu_cxx::new_allocator.
2104         * testsuite/experimental/memory_resource/resource_adaptor.cc: Test
2105         extended alignments and use debug_allocator to check for matching
2106         allocate/deallocate pairs.
2107
2108 2018-06-21  François Dumont  <fdumont@gcc.gnu.org>
2109
2110         * include/debug/safe_iterator.h
2111         (_Safe_iterator<>(const _Safe_iterator<_MutableIterator,>& __x)):
2112         Compare __x base iterator with a value-initialized iterator of the
2113         same type.
2114
2115 2018-06-20  Jonathan Wakely  <jwakely@redhat.com>
2116
2117         PR libstdc++/70966
2118         * include/experimental/memory_resource (__resource_adaptor_imp): Add
2119         static assertions to enforce requirements on pointer types.
2120         (__resource_adaptor_imp::get_allocator()): Add noexcept.
2121         (new_delete_resource, null_memory_resource): Return address of an
2122         object with dynamic storage duration.
2123         (__null_memory_resource): Remove.
2124         * testsuite/experimental/memory_resource/70966.cc: New.
2125
2126         * testsuite/20_util/duration/arithmetic/dr3050.cc: Add new test
2127         missed from recent commit.
2128
2129 2018-06-19  Jonathan Wakely  <jwakely@redhat.com>
2130
2131         * include/std/utility: Remove unused <exception> header.
2132
2133 2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
2134
2135         LWG 2975 ensure construct(pair<T,U>*, ...) used to construct pairs
2136         * include/std/scoped_allocator (__not_pair): Define SFINAE helper.
2137         (construct(_Tp*, _Args&&...)): Remove from overload set when _Tp is
2138         a specialization of std::pair.
2139         * testsuite/20_util/scoped_allocator/construct_pair.cc: Ensure
2140         pair elements are constructed correctly.
2141
2142         LWG 2989 hide path iostream operators from normal lookup
2143         * include/bits/fs_path.h (operator<<, operator>>): Define inline as
2144         friends.
2145         * testsuite/27_io/filesystem/path/io/dr2989.cc: New.
2146
2147         LWG 3050 Fix cv-qualification of convertibility constraints
2148         * include/std/chrono (duration, operator*, operator/, operator%): Use
2149         const-qualified type as source type in is_convertible constraints.
2150         * testsuite/20_util/duration/arithmetic/dr3050.cc: New.
2151         * testsuite/20_util/duration/cons/dr3050.cc: New.
2152         * testsuite/20_util/duration/literals/range.cc: Rename to...
2153         * testsuite/20_util/duration/literals/range_neg.cc: Here. Adjust
2154         dg-error lineno.
2155
2156 2018-06-18  Maya Rashish  <coypu@sdf.org>
2157
2158         * crossconfig.m4: Handle OpenBSD just like NetBSD.
2159         * configure: Rebuilt.
2160
2161 2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
2162
2163         P0754R2 <version> header
2164         * include/Makefile.am: Add new header.
2165         * include/Makefile.in: Regenerate.
2166         * include/bits/c++config: Change doxygen comment to suggest <version>
2167         instead of <iosfwd>.
2168         * include/precompiled/stdc++.h: Include <cwchar> and <cwctype>
2169         unconditionally.  Add C++17 and C++20 headers.
2170         * include/std/version: New header.
2171         * testsuite/17_intro/headers/c++2017/all_attributes.cc: New.
2172         * testsuite/17_intro/headers/c++2017/all_no_exceptions.cc: New.
2173         * testsuite/17_intro/headers/c++2017/all_no_rtti.cc: New.
2174         * testsuite/17_intro/headers/c++2017/all_pedantic_errors.cc: New.
2175         * testsuite/17_intro/headers/c++2017/operator_names.cc: New.
2176         * testsuite/17_intro/headers/c++2017/stdc++.cc: New.
2177         * testsuite/17_intro/headers/c++2017/stdc++_multiple_inclusion.cc:
2178         New.
2179         * testsuite/17_intro/headers/c++2020/all_attributes.cc: New.
2180         * testsuite/17_intro/headers/c++2020/all_no_exceptions.cc: New.
2181         * testsuite/17_intro/headers/c++2020/all_no_rtti.cc: New.
2182         * testsuite/17_intro/headers/c++2020/all_pedantic_errors.cc: New.
2183         * testsuite/17_intro/headers/c++2020/operator_names.cc: New.
2184         * testsuite/17_intro/headers/c++2020/stdc++.cc: New.
2185         * testsuite/17_intro/headers/c++2020/stdc++_multiple_inclusion.cc:
2186         New.
2187         * testsuite/18_support/headers/version/macros.cc: New.
2188         * testsuite/18_support/headers/version/macros.cc: New.
2189
2190         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Only check when
2191         enable_libstdcxx_filesystem_ts = yes. Check for link, readlink and
2192         symlink.
2193         * config.h.in: Regenerate.
2194         * configure: Regenerate.
2195         * configure.ac: Remove AC_CHECK_FUNCS for link, readlink and symlink.
2196
2197         LWG 3035. std::allocator's constructors should be constexpr
2198         * include/bits/allocator.h (allocator): Add constexpr to constructors
2199         for C++2a. Replace dynamic exception specifications with NOTHROW
2200         macro.
2201         (allocator, operator==, operator!=): Replace USE_NOEXCEPT macro with
2202         NOTHROW.
2203         * include/bits/c++config (_GLIBCXX20_CONSTEXPR): Define.
2204         * include/ext/malloc_allocator.h (malloc_allocator): Add constexpr
2205         to constructors for C++2a.
2206         * include/ext/new_allocator.h (new_allocator): Likewise.
2207
2208 2018-06-16  Jonathan Wakely  <jwakely@redhat.com>
2209
2210         LWG 3076 basic_string CTAD ambiguity
2211         * doc/xml/manual/intro.xml: Document LWG 3076 change.
2212         * include/bits/basic_string.h
2213         [__cpp_deduction_guides && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
2214         (basic_string(const _CharT*, const _Alloc&)): Turn into a function
2215         template constrained by _RequireAllocator.
2216         (basic_string(size_type, _CharT, const _Alloc&)): Likewise.
2217         * src/c++11/string-inst.cc (_GLIBCXX_DEFINING_STRING_INSTANTIATIONS):
2218         Define.
2219         * testsuite/21_strings/basic_string/cons/char/deduction.cc: Test
2220         deduction
2221         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
2222         Likewise.
2223
2224 2018-06-15  Jonathan Wakely  <jwakely@redhat.com>
2225
2226         PR libstdc++/86169
2227         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
2228         (basic_string::data()): Unshare string.
2229         * testsuite/21_strings/basic_string/operations/data/char/86169.cc:
2230         New.
2231
2232         * include/std/string_view (basic_string_view(const CharT*)): Remove
2233         check for null pointer and add nonnull attribute.
2234         (compare(const CharT*), compare(size_type, size_type, const CharT*))
2235         (find(const CharT*, size_type), rfind(const CharT*, size_type))
2236         (find_first_of(const CharT*, size_type))
2237         (find_last_of(const CharT*, size_type))
2238         (find_first_not_of(const CharT*, size_type))
2239         (find_last_not_of(const CharT*, size_type)): Add nonnull attribute.
2240         * testsuite/21_strings/basic_string_view/cons/char/nonnull.cc: New.
2241         * testsuite/21_strings/basic_string_view/operations/compare/char/
2242         nonnull.cc: New.
2243         * testsuite/21_strings/basic_string_view/operations/find/char/
2244         nonnull.cc: New.
2245         * testsuite/21_strings/basic_string_view/operations/rfind/char/
2246         nonnull.cc: New.
2247
2248         PR libstdc++/86168
2249         * include/bits/random.h (random_device(const string&)): Remove
2250         default argument.
2251
2252         * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits): Only
2253         define for C++17 and above.
2254
2255         LWG 2993 reference_wrapper<T> conversion from T&&
2256         * doc/xml/manual/intro.xml: Document LWG 2993 change.
2257         * include/bits/refwrap.h (reference_wrapper(_Tp&)): Remove.
2258         (reference_wrapper(_Tp&&)): Remove.
2259         (reference_wrapper<_Up>(_Up&&)): Define new constructor as constrained
2260         template.
2261         (reference_wrapper): Add deduction guide.
2262         * testsuite/20_util/reference_wrapper/deduction.cc: New.
2263         * testsuite/20_util/reference_wrapper/lwg2993.cc: New.
2264
2265         LWG 3039 Unnecessary decay in thread and packaged_task
2266         * include/std/future (__constrain_pkgdtask): Replace with ...
2267         (packaged_task::__not_same): New alias template, using
2268         __remove_cvref_t instead of decay.
2269         * include/std/thread (thread::__not_same): Add comment.
2270
2271 2018-06-14  Jonathan Wakely  <jwakely@redhat.com>
2272
2273         LWG 3075 basic_string needs deduction guides from basic_string_view
2274         * testsuite/21_strings/basic_string/cons/char/deduction.cc: Test
2275         deduction from string views.
2276         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
2277         Likewise.
2278
2279         LWG 3074 make scalar types non-deduced in valarray non-member functions
2280         * include/bits/valarray_after.h (_DEFINE_EXPR_BINARY_FUNCTION): Change
2281         scalar parameters to be a non-deduced context.
2282         * include/std/valarray (_DEFINE_BINARY_OPERATOR): Likewise. Adjust
2283         whitespace.
2284         * testsuite/26_numerics/valarray/operators.cc: Test scalar operands.
2285         * testsuite/26_numerics/valarray/transcend.cc: New.
2286
2287         * include/std/tuple (__cpp_lib_tuple_element_t, tuple_element_t):
2288         Move back to <utility>.
2289         * include/std/utility (__cpp_lib_tuple_element_t. tuple_element_t):
2290         Restore to here.
2291
2292         P0935R0 Eradicating unnecessarily explicit default constructors
2293         * include/backward/strstream (strstreambuf): Add non-explicit default
2294         constructor.
2295         * include/bits/locale_conv.h (wbuffer_convert, wstring_convert):
2296         Likewise.
2297         * include/bits/regex.h (match_results): Likewise.
2298         * testsuite/22_locale/conversions/buffer/1.cc: Test for non-explicit
2299         default constructor.
2300         * testsuite/22_locale/conversions/string/1.cc: Likewise.
2301         * testsuite/28_regex/match_results/ctors/char/default.cc: Likewise.
2302         * testsuite/28_regex/match_results/ctors/wchar_t/default.cc: Likewise.
2303
2304         * include/std/tuple (__cpp_lib_tuple_element_t): Move feature test
2305         macro from <utility> and change type to long.
2306         * include/std/utility (__cpp_lib_tuple_element_t): Remove.
2307         * testsuite/20_util/tuple/tuple_element_t.cc: Check for feature test
2308         macro.
2309
2310         P0935R0 Eradicating unnecessarily explicit default constructors
2311         * include/bits/random.h (uniform_real_distribution::param_type)
2312         (normal_distribution::param_type, lognormal_distribution::param_type)
2313         (gamma_distribution::param_type, chi_squared_distribution::param_type)
2314         (cauchy_distribution::param_type, fisher_f_distribution::param_type)
2315         (student_t_distribution::param_type)
2316         (bernoulli_distribution::param_type)
2317         (binomial_distribution::param_type)
2318         (geometric_distribution::param_type)
2319         (negative_binomial_distribution::param_type)
2320         (poisson_distribution::param_type)
2321         (exponential_distribution::param_type)
2322         (weibull_distribution::param_type)
2323         (extreme_value_distribution::param_type): Add non-explicit default
2324         constructors. Remove default argument for first parameter of explicit
2325         constructors.
2326         * include/bits/uniform_int_dist.h
2327         (uniform_int_distribution::param_type): Likewise.
2328         * include/ext/random
2329         (beta_distribution::param_type, rice_distribution::param_type)
2330         (nakagami_distribution::param_type, pareto_distribution::param_type)
2331         (k_distribution::param_type, arcsine_distribution::param_type)
2332         (hoyt_distribution::param_type, triangular_distribution::param_type)
2333         (von_mises_distribution::param_type)
2334         (hypergeometric_distribution::param_type)
2335         (logistic_distribution::param_type)
2336         (uniform_inside_sphere_distribution::param_type): Likewise.
2337         (uniform_on_sphere_distribution::param_type): Make default constructor
2338         non-explicit.
2339         * testsuite/26_numerics/random/bernoulli_distribution/cons/default.cc:
2340         Test param_type for non-explicit default constructor.
2341         * testsuite/26_numerics/random/binomial_distribution/cons/default.cc:
2342         Likewise.
2343         * testsuite/26_numerics/random/cauchy_distribution/cons/default.cc:
2344         Likewise.
2345         * testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc:
2346         Likewise.
2347         * testsuite/26_numerics/random/discrete_distribution/cons/default.cc:
2348         Likewise.
2349         * testsuite/26_numerics/random/exponential_distribution/cons/default.cc:
2350         Likewise.
2351         * testsuite/26_numerics/random/extreme_value_distribution/cons/default.cc:
2352         Likewise.
2353         * testsuite/26_numerics/random/fisher_f_distribution/cons/default.cc:
2354         Likewise.
2355         * testsuite/26_numerics/random/gamma_distribution/cons/default.cc:
2356         Likewise.
2357         * testsuite/26_numerics/random/geometric_distribution/cons/default.cc:
2358         Likewise.
2359         * testsuite/26_numerics/random/lognormal_distribution/cons/default.cc:
2360         Likewise.
2361         * testsuite/26_numerics/random/negative_binomial_distribution/cons/default.cc:
2362         Likewise.
2363         * testsuite/26_numerics/random/normal_distribution/cons/default.cc:
2364         Likewise.
2365         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/default.cc:
2366         Likewise.
2367         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/default.cc:
2368         Likewise.
2369         * testsuite/26_numerics/random/poisson_distribution/cons/default.cc:
2370         Likewise.
2371         * testsuite/26_numerics/random/student_t_distribution/cons/default.cc:
2372         Likewise.
2373         * testsuite/26_numerics/random/uniform_int_distribution/cons/default.cc:
2374         Likewise.
2375         * testsuite/26_numerics/random/uniform_real_distribution/cons/default.cc:
2376         Likewise.
2377         * testsuite/26_numerics/random/weibull_distribution/cons/default.cc:
2378         Likewise.
2379         * testsuite/ext/random/arcsine_distribution/cons/default.cc: Likewise.
2380         * testsuite/ext/random/beta_distribution/cons/default.cc: Likewise.
2381         * testsuite/ext/random/hoyt_distribution/cons/default.cc: Likewise.
2382         * testsuite/ext/random/hypergeometric_distribution/cons/default.cc:
2383         Likewise.
2384         * testsuite/ext/random/k_distribution/cons/default.cc: Likewise.
2385         * testsuite/ext/random/logistic_distribution/cons/default.cc: Likewise.
2386         * testsuite/ext/random/nakagami_distribution/cons/default.cc: Likewise.
2387         * testsuite/ext/random/normal_mv_distribution/cons/default.cc:
2388         Likewise.
2389         * testsuite/ext/random/pareto_distribution/cons/default.cc: Likewise.
2390         * testsuite/ext/random/rice_distribution/cons/default.cc: Likewise.
2391         * testsuite/ext/random/triangular_distribution/cons/default.cc:
2392         Likewise.
2393         * testsuite/ext/random/uniform_inside_sphere_distribution/cons/default.cc:
2394         Likewise.
2395         * testsuite/ext/random/uniform_on_sphere_distribution/cons/default.cc:
2396         Likewise.
2397         * testsuite/ext/random/von_mises_distribution/cons/default.cc:
2398         Likewise.
2399
2400 2018-06-14  Daniel Trebbien <dtrebbien@gmail.com>
2401             Jonathan Wakely  <jwakely@redhat.com>
2402
2403         PR libstdc++/83982
2404         * include/bits/vector.tcc (vector::_M_default_append(size_type)):
2405         Default-construct new elements before moving existing ones.
2406         * testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc:
2407         New.
2408
2409 2018-06-13  Jonathan Wakely  <jwakely@redhat.com>
2410
2411         PR libstdc++/86127
2412         * include/bits/forward_list.h (_Fwd_list_base::_Tp_alloc_type): Remove
2413         unused typedef.
2414         (_Fwd_list_base::_M_create_node, _Fwd_list_base::_M_erase_after):
2415         Use node allocator to create and destroy elements.
2416         (forward_list::_Tp_alloc_type): Remove unused typedef.
2417         (forward_list::_Alloc_traits): Use allocator_traits instead of
2418         __gnu_cxx::__alloc_traits.
2419
2420 2018-06-13  François Dumont  <fdumont@gcc.gnu.org>
2421
2422         * include/debug/helper_functions.h
2423         (__gnu_debug::_Safe_iterator<>): Add declaration.
2424         (__can_advance(_Ite, _Size)): New.
2425         (__can_advance(const _Safe_iterator<>&, _Size)): Overload declaration.
2426         * include/debug/functions.h
2427         (__gnu_debug::_Safe_iterator<>): Remove declaration.
2428         * include/debug/stl_iterator.h
2429         (__can_advance(const _Safe_iterator<>&)): New definition.
2430         * include/debug/stl_iterator.h
2431         (__can_advance(const std::reverse_iterator<>&, _Size)): New.
2432         (__can_advance(const std::move_iterator<>&, _Size)): New.
2433         * include/debug/macros.h (__glibcxx_check_can_increment): New.
2434         * include/debug/debug.h (__glibcxx_requires_can_increment): New.
2435         * include/bits/stl_algobase.h (fill_n): Use latter.
2436         * testsuite/25_algorithms/fill_n/2.cc: New.
2437         * testsuite/25_algorithms/fill_n/debug/1_neg.cc: New.
2438         * testsuite/25_algorithms/fill_n/debug/2_neg.cc: New.
2439         * testsuite/25_algorithms/fill_n/debug/3_neg.cc: New.
2440         * testsuite/25_algorithms/fill_n/debug/4_neg.cc: New.
2441
2442         * include/debug/debug.h (__glibcxx_requires_can_increment_range): New.
2443         (__glibcxx_requires_can_decrement_range): New.
2444
2445 2018-06-12  François Dumont  <fdumont@gcc.gnu.org>
2446
2447         * include/debug/macros.h (__glibcxx_check_can_increment_range): New.
2448         (__glibcxx_check_can_decrement_range): New.
2449         * include/bits/stl_algobase.h (std::copy(_II, _II, _OI)): Use
2450         __glibcxx_requires_can_increment_range.
2451         (std::move(_II, _II, _OI)): Likewise.
2452         (std::copy_backward(_BI, _BI, _BI2)): Use
2453         __glibcxx_requires_can_decrement_range.
2454         (std::move_backward(_BI, _BI, _BI2)): Likewise.
2455         * testsuite/25_algorithms/copy_backward/debug/1_neg.cc: New.
2456         * testsuite/25_algorithms/copy_backward/debug/2_neg.cc: New.
2457         * testsuite/25_algorithms/copy_backward/debug/3_neg.cc: New.
2458         * testsuite/25_algorithms/equal/debug/1_neg.cc: New.
2459         * testsuite/25_algorithms/equal/debug/2_neg.cc: New.
2460         * testsuite/25_algorithms/equal/debug/3_neg.cc: New.
2461
2462 2018-06-12  Jonathan Wakely  <jwakely@redhat.com>
2463
2464         P0935R0 Eradicating unnecessarily explicit default constructors
2465         * include/bits/random.h (linear_congruential_engine)
2466         (mersenne_twister_engine, subtract_with_carry_engine, random_device)
2467         (uniform_real_distribution, normal_distribution)
2468         (lognormal_distribution, gamma_distribution, chi_squared_distribution)
2469         (cauchy_distribution, fisher_f_distribution, student_t_distribution)
2470         (bernoulli_distribution, binomial_distribution,geometric_distribution)
2471         (negative_binomial_distribution, exponential_distribution)
2472         (weibull_distribution, extreme_value_distribution): Add non-explicit
2473         default constructors. Remove default argument for first parameter of
2474         explicit constructors.
2475         (piecewise_constant_distribution, piecewise_linear_distribution):
2476         Make default constructor non-explicit.
2477         * include/bits/uniform_int_dist.h (uniform_int_distribution): Add
2478         non-explicit default constructors. Remove default argument for first
2479         parameter of explicit constructor.
2480         * include/ext/random
2481         (simd_fast_mersenne_twister_engine, beta_distribution)
2482         (rice_distribution, nakagami_distribution, pareto_distribution)
2483         (k_distribution, arcsine_distribution, hoyt_distribution)
2484         (triangular_distribution, von_mises_distribution)
2485         (hypergeometric_distribution, logistic_distribution)
2486         (uniform_inside_sphere_distribution): Likewise.
2487         (uniform_on_sphere_distribution): Make default constructor
2488         non-explicit.
2489         * testsuite/26_numerics/random/bernoulli_distribution/cons/default.cc:
2490         Test for non-explicit default constructor. Fix references to standard.
2491         * testsuite/26_numerics/random/binomial_distribution/cons/default.cc:
2492         Likewise.
2493         * testsuite/26_numerics/random/cauchy_distribution/cons/default.cc:
2494         Likewise.
2495         * testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc:
2496         Likewise.
2497         * testsuite/26_numerics/random/discrete_distribution/cons/default.cc:
2498         Likewise.
2499         * testsuite/26_numerics/random/exponential_distribution/cons/default.cc:
2500         Likewise.
2501         * testsuite/26_numerics/random/extreme_value_distribution/cons/default.cc:
2502         Likewise.
2503         * testsuite/26_numerics/random/fisher_f_distribution/cons/default.cc:
2504         Likewise.
2505         * testsuite/26_numerics/random/gamma_distribution/cons/default.cc:
2506         Likewise.
2507         * testsuite/26_numerics/random/geometric_distribution/cons/default.cc:
2508         Likewise.
2509         * testsuite/26_numerics/random/lognormal_distribution/cons/default.cc:
2510         Likewise.
2511         * testsuite/26_numerics/random/negative_binomial_distribution/cons/default.cc:
2512         Likewise.
2513         * testsuite/26_numerics/random/normal_distribution/cons/default.cc:
2514         Likewise.
2515         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/default.cc:
2516         Likewise.
2517         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/default.cc:
2518         Likewise.
2519         * testsuite/26_numerics/random/poisson_distribution/cons/default.cc:
2520         Likewise.
2521         * testsuite/26_numerics/random/student_t_distribution/cons/default.cc:
2522         Likewise.
2523         * testsuite/26_numerics/random/uniform_int_distribution/cons/default.cc:
2524         Likewise.
2525         * testsuite/26_numerics/random/uniform_real_distribution/cons/default.cc:
2526         Likewise.
2527         * testsuite/26_numerics/random/weibull_distribution/cons/default.cc:
2528         Likewise.
2529         * testsuite/ext/random/arcsine_distribution/cons/default.cc: Likewise.
2530         * testsuite/ext/random/beta_distribution/cons/default.cc: Likewise.
2531         * testsuite/ext/random/hoyt_distribution/cons/default.cc: Likewise.
2532         * testsuite/ext/random/hypergeometric_distribution/cons/default.cc:
2533         Likewise.
2534         * testsuite/ext/random/k_distribution/cons/default.cc: Likewise.
2535         * testsuite/ext/random/logistic_distribution/cons/default.cc: Likewise.
2536         * testsuite/ext/random/nakagami_distribution/cons/default.cc: Likewise.
2537         * testsuite/ext/random/normal_mv_distribution/cons/default.cc:
2538         Likewise.
2539         * testsuite/ext/random/pareto_distribution/cons/default.cc: Likewise.
2540         * testsuite/ext/random/rice_distribution/cons/default.cc: Likewise.
2541         * testsuite/ext/random/triangular_distribution/cons/default.cc:
2542         Likewise.
2543         * testsuite/ext/random/uniform_inside_sphere_distribution/cons/default.cc:
2544         Likewise.
2545         * testsuite/ext/random/uniform_on_sphere_distribution/cons/default.cc:
2546         Likewise.
2547         * testsuite/ext/random/von_mises_distribution/cons/default.cc:
2548         Likewise.
2549         * testsuite/util/testsuite_common_types.h
2550         (implicitly_default_constructible): New helper.
2551
2552 2018-06-08  Jonathan Wakely  <jwakely@redhat.com>
2553
2554         * include/bits/ios_base.h (ios::Init::Init(const Init&))
2555         (ios::Init::operator=): Define as defaulted.
2556         * include/bits/stl_bvector.h (_Bit_reference(const _Bit_reference&)):
2557         Likewise.
2558         * include/bits/stream_iterator.h (istream_iterator::operator=)
2559         (ostream_iterator::operator=): Likewise.
2560         * include/bits/streambuf_iterator.h (istreambuf_iterator::operator=)
2561         Likewise.
2562         * include/std/bitset (bitset::reference::reference(const reference&)):
2563         Likewise.
2564         * include/std/complex (complex<float>::complex(const complex&))
2565         (complex<double>::complex(const complex&))
2566         (complex<long double>::complex(const complex&)): Likewise.
2567
2568 2018-06-07  Jonathan Wakely  <jwakely@redhat.com>
2569
2570         * include/bits/regex.h (sub_match): Add noexcept to default
2571         constructor and length observer.
2572         (match_results): Add noexcept to default constructor and observers
2573         with no preconditions. Define destructor as defaulted.
2574         (operator==, operator!=, swap): Add noexcept.
2575         (regex_iterator): Add default member initializers and define default
2576         constructor and destructor as defaulted. Add noexcept to equality
2577         and dereference operators.
2578
2579 2018-06-07  François Dumont  <fdumont@gcc.gnu.org>
2580
2581         * src/c++11/debug.cc
2582         (_Safe_iterator_base::_M_detach()): Reset state only if needed.
2583         (_Safe_iterator_base::_M_detach_single()): Likewise.
2584         (_Safe_local_iterator_base::_M_detach()): Reset state only if needed.
2585         (_Safe_local_iterator_base::_M_detach_single()): Likewise.
2586
2587 2018-06-06  Jonathan Wakely  <jwakely@redhat.com>
2588
2589         * include/bits/shared_ptr_base.h (__shared_count): Remove redundant
2590         move of const value.
2591
2592 2018-06-06  Jakub Jelinek  <jakub@redhat.com>
2593
2594         PR c++/86068
2595         * include/bits/c++config: Check __cpp_transactional_memory >= 201500L
2596         rather than __cpp_transactional_memory >= 201505L.
2597
2598 2018-06-06  Jonathan Wakely  <jwakely@redhat.com>
2599
2600         PR libstdc++/86008
2601         * include/bits/quoted_string.h (_Quoted_string<basic_string_view, C>):
2602         Define new partial specialization.
2603         * include/std/iomanip (quoted(basic_string_view<C,T>, C, C)): Define
2604         new overload.
2605         (operator<<(basic_ostream<C,T>&, const _Quoted_string<S,C>&)): Use
2606         value not reference for iteration.
2607         * testsuite/27_io/manipulators/standard/char/quoted.cc: Adjust
2608         comment.
2609         * testsuite/27_io/manipulators/standard/char/quoted_sv.cc: New test.
2610         * testsuite/27_io/manipulators/standard/wchar_t/quoted.cc: Adjust
2611         comment.
2612
2613 2018-06-05  Jonathan Wakely  <jwakely@redhat.com>
2614
2615         * include/std/type_traits: Fix comment typos.
2616
2617         * testsuite/27_io/filesystem/operations/read_symlink.cc: XFAIL for
2618         mingw* targets.
2619         * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
2620         * testsuite/experimental/filesystem/operations/read_symlink.cc:
2621         Likewise.
2622
2623 2018-06-05  François Dumont  <fdumont@gcc.gnu.org>
2624
2625         * include/bits/stl_tempbuf.h
2626         (_Temporary_buffer(_FwdIte, _FwdIte)): Delete, replaced by...
2627         (_Temporary_buffer(_FwdIte, size_type)): ...this, new.
2628         * include/ext/memory (temporary_buffer<>(_FwdIte, _FwdIte)): Adapt.
2629         * include/bits/stl_algo.h (__stable_partition): Adapt.
2630         (__inplace_merge): Adapt.
2631         (__stable_sort): Adapt.
2632
2633 2018-06-04  Jonathan Wakely  <jwakely@redhat.com>
2634
2635         PR libstdc++/85930
2636         * include/bits/shared_ptr_base.h [!__cpp_rtti]: Include <typeinfo>
2637         unconditionally. Remove redundant declaration.
2638         [!__cpp_rtti] (_Sp_make_shared_tag::_S_ti): Fix location of
2639         alignment-specifier.
2640
2641         * include/bits/postypes.h (fpos): Define special members as defaulted.
2642
2643         PR libstdc++/85930
2644         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Align
2645         the static variable correctly.
2646
2647 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
2648
2649         PR libstdc++/78870 support std::filesystem on Windows
2650         * config.h.in: Regenerate.
2651         * configure: Regenerate.
2652         * configure.ac: Check for link, readlink and symlink.
2653         * include/bits/fs_path.h (path::operator/=(const path&)): Move
2654         definition out of class body.
2655         (path::is_absolute(), path::_M_append(path)): Likewise.
2656         (operator<<(basic_ostream, const path&)): Use std::quoted directly.
2657         (operator>>(basic_istream, path&)): Likewise.
2658         (u8path): Reorder definitions and fix Windows implementation.
2659         (path::is_absolute()): Define inline and fix for Windows.
2660         [!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
2661         Define POSIX version inline.
2662         (path::_M_append(path)): Define inline.
2663         * include/experimental/bits/fs_path.h (path::is_absolute()): Move
2664         definition out of class body.
2665         (operator<<(basic_ostream, const path&)): Fix type of delimiter and
2666         escape characters.
2667         (operator>>(basic_istream, path&)): Likewise.
2668         (path::is_absolute()): Define inline and fix for Windows.
2669         * src/filesystem/dir-common.h (__gnu_posix): New namespace.
2670         (__gnu_posix::char_type, __gnu_posix::DIR, __gnu_posix::dirent)
2671         (__gnu_posix::opendir, __gnu_posix::readdir, __gnu_posix::closedir):
2672         Define as adaptors for Windows functions/types or as
2673         using-declarations for POSIX functions/types.
2674         (_Dir_base, get_file_type): Qualify names to use declarations from
2675         __gnu_posix namespace.
2676         (_Dir_base::is_dor_or_dotdot): New helper functions.
2677         * src/filesystem/dir.cc (_Dir, recursive_directory_iterator): Qualify
2678         names to use declarations from __gnu_posix namespace.
2679         * src/filesystem/ops-common.h (__gnu_posix): New nested namespace.
2680         (__gnu_posix::open, __gnu_posix::close, __gnu_posix::stat_type)
2681         (__gnu_posix::stat, __gnu_posix::lstat, __gnu_posix::mode_t)
2682         (__gnu_posix::chmod, __gnu_posix::mkdir, __gnu_posix::getcwd)
2683         (__gnu_posix::chdir, __gnu_posix::utimbuf, __gnu_posix::utime)
2684         (__gnu_posix::rename, __gnu_posix::truncate, __gnu_posix::char_type):
2685         Define as adaptors for Windows functions/types or as
2686         using-declarations for POSIX functions/types.
2687         (stat_type, do_copy_file): Qualify names to use declarations from
2688         __gnu_posix namespace.
2689         (do_space): Declare new function.
2690         (make_file_type): Only use S_ISLNK if defined.
2691         * src/filesystem/ops.cc (char_ptr, filesystem::canonical): Use
2692         path::value_type not char.
2693         (filesystem::copy, create_dir, filesystem::create_directory): Qualify
2694         names to use declarations from __gnu_posix namespace.
2695         (filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
2696         add implementation for Windows.
2697         (filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
2698         (filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
2699         [!_PC_PATH_MAX]: Don't use pathconf.
2700         [PATH_MAX]: Use if defined.
2701         (filesystem::current_path(const path&, error_code&))
2702         (filesystem::equivalent, do_stat, filesystem::hard_link_count)
2703         (filesystem::last_write_time, filesystem::permissions): Use names
2704         from __gnu_posix.
2705         (filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
2706         (filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
2707         implementation for Windows.
2708         (filesystem::rename, filesystem::resize_file): Use names from
2709         __gnu_posix.
2710         (filesystem::space): Use do_space.
2711         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Get absolute path to directory.
2712         (filesystem::status, filesystem::symlink_status): Use names from
2713         __gnu_posix.
2714         (filesystem::temp_directory_path): Add implementation for Windows.
2715         * src/filesystem/path.cc (dot): Define constant.
2716         (path::replace_extension): Use dot.
2717         (path::_M_find_extension): Likewise. Use path::string_type not
2718         std::string.
2719         (path::_M_split_cmpts): Use dot.
2720         (filesystem_error::_M_get_what): Use u8string() not native().
2721         * src/filesystem/std-dir.cc (_Dir, recursive_directory_iterator):
2722         Qualify names to use declarations from __gnu_posix namespace.
2723         * src/filesystem/std-ops.cc (filesystem::absolute(const path&)): Use
2724         correct error_code.
2725         (filesystem::absolute(const path&, error_code&)): Add implementation
2726         for Windows.
2727         (char_ptr, filesystem::canonical): Use path::value_type not char.
2728         (do_copy_file): Use names from __gnu_posix.
2729         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Do not use fchmod, fchmodat or
2730         sendfile.
2731         (filesystem::copy, create_dir, filesystem::create_directory): Qualify
2732         names to use declarations from __gnu_posix namespace.
2733         (filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
2734         add implementation for Windows.
2735         (filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
2736         (filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
2737         [!_PC_PATH_MAX]: Don't use pathconf.
2738         [PATH_MAX]: Use if defined.
2739         (filesystem::current_path(const path&, error_code&))
2740         (filesystem::equivalent, do_stat, filesystem::hard_link_count)
2741         (filesystem::last_write_time, filesystem::permissions): Use names
2742         from __gnu_posix.
2743         (filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
2744         (filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
2745         implementation for Windows.
2746         (filesystem::rename, filesystem::resize_file): Use names from
2747         __gnu_posix.
2748         (do_space): Define.
2749         (filesystem::space): Use do_space.
2750         (filesystem::status, filesystem::symlink_status): Use names from
2751         __gnu_posix.
2752         (filesystem::temp_directory_path): Add implementation for Windows.
2753         * src/filesystem/std-path.cc
2754         [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
2755         Define for Windows.
2756         (dot): Define constant.
2757         (path::replace_extension, is_dot): Use dot.
2758         (path::lexically_normal): Check _M_type instead of calling
2759         non-existent function.
2760         (path::_M_find_extension): Use dot. Use path::string_type not
2761         std::string.
2762         (path::_M_split_cmpts): Use dot.
2763         (filesystem_error::_M_get_what): Use u8string() not native().
2764         * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Do not
2765         use symlinks.
2766         * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
2767         Likewise.
2768         * testsuite/27_io/filesystem/operations/absolute.cc: Use
2769         __gnu_test::root_path() instead of "/" and add Windows-specific tests.
2770         * testsuite/27_io/filesystem/operations/canonical.cc: Use
2771         path::string() to get narrow string, not path::native().
2772         * testsuite/27_io/filesystem/operations/copy.cc: Construct fstreams
2773         with std::filesystem::path not std::basic_string.
2774         * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
2775         * testsuite/27_io/filesystem/operations/exists.cc: Use
2776         __gnu_test::root_path() instead of "/".
2777         * testsuite/27_io/filesystem/operations/is_empty.cc: Construct
2778         fstreams with std::filesystem::path not std::basic_string.
2779         * testsuite/27_io/filesystem/operations/last_write_time.cc: Use
2780         path::string() to get narrow string.
2781         * testsuite/27_io/filesystem/operations/space.cc: Check results for
2782         errors, expect sensible values otherwise.
2783         * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Add
2784         helpers for adjusting the environment on Windows.
2785         * testsuite/27_io/filesystem/path/append/path.cc: Test
2786         Windows-specific behaviour.
2787         * testsuite/27_io/filesystem/path/construct/format.cc: Fix creation
2788         of path::string_type objects.
2789         * testsuite/27_io/filesystem/path/construct/locale.cc: Compare native
2790         string to wide string on Windows.
2791         * testsuite/27_io/filesystem/path/decompose/root_directory.cc: Allow
2792         for backslash as root-directory.
2793         * testsuite/27_io/filesystem/path/decompose/stem.cc: Use
2794         path::string() to get narrow string.
2795         * testsuite/27_io/filesystem/path/itr/traversal.cc: Test Windows-style
2796         paths.
2797         * testsuite/27_io/filesystem/path/native/string.cc: Use string_type
2798         not std::string.
2799         * testsuite/27_io/filesystem/path/query/is_absolute.cc: Adjust for
2800         different definintion of absolute paths on Windows.
2801         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
2802         Do not use symlinks.
2803         * testsuite/experimental/filesystem/operations/absolute.cc: Test
2804         Windows behaviour.
2805         * testsuite/experimental/filesystem/operations/copy.cc: Construct
2806         fstreams with NTCTS not std::basic_string.
2807         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
2808         * testsuite/experimental/filesystem/operations/exists.cc: Use
2809         __gnu_test::root_path() instead of "/".
2810         * testsuite/experimental/filesystem/operations/is_empty.cc: Construct
2811         fstreams with NTCTS not std::basic_string.
2812         * testsuite/experimental/filesystem/operations/last_write_time.cc:
2813         Use path::string() to get narrow string.
2814         * testsuite/experimental/filesystem/operations/space.cc: Use
2815         __gnu_test::root_path() instead of "/".
2816         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
2817         Add helpers for adjusting the environment on Windows.
2818         * testsuite/experimental/filesystem/path/append/path.cc: Use
2819         path::string() to get narrow strings for comparisons.
2820         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
2821         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
2822         Likewise.
2823         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
2824         * testsuite/experimental/filesystem/path/native/string.cc: Use
2825         string_type not std::string.
2826         * testsuite/experimental/filesystem/path/query/is_absolute.cc:
2827         Adjust for different definintion of absolute paths on Windows.
2828         * testsuite/util/testsuite_fs.h (__gnu_test::root_path()): New
2829         function.
2830         (__gnu_test::scoped_file): Construct fstreams with NTCTS not
2831         std::basic_string.
2832
2833 2018-05-31  Jonathan Wakely  <jwakely@redhat.com>
2834
2835         PR libstdc++/85951
2836         * include/std/type_traits [_GLIBCXX_USE_C99_STDINT_TR1]: Do not define
2837         uint_least16_t and uint_least32_t.
2838         (__make_unsigned<wchar_t>): Define unconditionally.
2839         (__make_unsigned_selector<_Tp, true, false>): Remove intermediate
2840         typedefs.
2841         (__make_unsigned_selector_base): New type to provide helper templates.
2842         (__make_unsigned_selector<_Tp, false, true>): Reimplement using
2843         __make_unsigned_selector_base helpers.
2844         (__make_unsigned<char16_t>, __make_unsigned<char32_t>): Define.
2845         (__make_signed_selector<_Tp, true, false>): Remove intermediate
2846         typedefs.
2847         (__make_signed<wchar_t>, __make_signed<char16_t>)
2848         (__make_signed<char32_t>)): Define unconditionally.
2849         * testsuite/20_util/make_signed/requirements/typedefs-3.cc: Check
2850         wchar_t, char16_t and char32_t are transformed correctly.
2851         * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
2852         dg-error lineno.
2853         * testsuite/20_util/make_unsigned/requirements/typedefs-3.cc: Check
2854         wchar_t, char16_t and char32_t are transformed correctly.
2855         * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust
2856         dg-error lineno.
2857
2858 2018-05-29  Jonathan Wakely  <jwakely@redhat.com>
2859
2860         * include/std/variant (__erased_dtor): Qualify call to __get.
2861
2862 2018-05-27  François Dumont  <fdumont@gcc.gnu.org>
2863
2864         * include/bits/stl_tree.h (_Rb_tree_impl(_Node_allocator&&)): New.
2865         (_Rb_tree(const allocator_type&)): Use latter.
2866         * include/bits/stl_map.h (map(const allocator_type&)): Likewise.
2867         (map(initializer_list<value_type>, const allocator_type&)): Likewise.
2868         (map(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
2869         * include/bits/stl_multimap.h
2870         (multimap(const allocator_type&)): Likewise.
2871         (multimap(initializer_list<value_type>, const allocator_type&)):
2872         Likewise.
2873         (multimap(_InputIterator, _InputIterator, const allocator_type&)):
2874         Likewise.
2875         * include/bits/stl_set.h (set(const allocator_type&)): Likewise.
2876         (set(initializer_list<value_type>, const allocator_type&)): Likewise.
2877         (set(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
2878         * include/bits/stl_multiset.h
2879         (multiset(const allocator_type&)): Likewise.
2880         (multiset(initializer_list<value_type>, const allocator_type&)):
2881         Likewise.
2882         (multiset(_InputIterator, _InputIterator, const allocator_type&)):
2883         Likewise.
2884
2885 2018-05-25  François Dumont  <fdumont@gcc.gnu.org>
2886
2887         PR libstdc++/85768
2888         * src/c++11/debug.cc: Remove backtrace usage.
2889
2890 2018-05-24  Maya Rashish  <coypu@sdf.org>
2891
2892         PR target/85904
2893         * crossconfig.m4: Test for aligned_alloc on netbsd.
2894         * configure: Regenerate.
2895
2896 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
2897
2898         PR libstdc++/69769
2899         PR libstdc++/85886
2900         * include/bits/atomic_base.h (__atomic_base::value_type)
2901         (__atomic_base::difference_type): Add new typedefs.
2902         * include/std/atomic (atomic<bool>::value_type, atomic<T>::value_type)
2903         (atomic<T*>::value_type, atomic<T*>::difference_type): Likewise.
2904         (atomic<T*>::operator++, atomic<T*>::operator--)
2905         (atomic<T*>::operator+=, atomic<T*>::operator-=)
2906         (atomic<T*>::fetch_add, atomic<T*>::fetch_sub): Add static assertion
2907         to enforce C++17 requirement on pointer arithmetic.
2908         (__atomic_val_t, __atomic_diff_t): New alias templates.
2909         (atomic_init, atomic_store_explicit, atomic_exchange_explicit)
2910         (atomic_compare_exchange_weak_explicit)
2911         (atomic_compare_exchange_strong_explicit, atomic_store)
2912         (atomic_exchange, atomic_compare_exchange_weak)
2913         (atomic_compare_exchange_strong): Use __atomic_val_t to make
2914         scalar parameters be non-deduced contexts.
2915         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
2916         (atomic_fetch_add, atomic_fetch_sub): Change first parameter to be
2917         atomic instead of __atomic_base, and use __atomic_diff_t for scalar
2918         parameters.
2919         (atomic_fetch_and_explicit, atomic_fetch_or_explicit)
2920         (atomic_fetch_xor_explicit, atomic_fetch_and, atomic_fetch_or)
2921         (atomic_fetch_xor): Use __atomic_val_t for scalar parameters.
2922         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
2923         (atomic_fetch_add, atomic_fetch_sub): Remove overloads for atomic
2924         address types.
2925         * testsuite/29_atomics/atomic/60695.cc: Adjust dg-error lineno.
2926         * testsuite/29_atomics/atomic/69769.cc: New test.
2927         * testsuite/29_atomics/atomic/nonmembers.cc: New test.
2928         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
2929         Disable test for C++17 and later.
2930         * testsuite/29_atomics/atomic/requirements/typedefs.cc: New test.
2931         * testsuite/29_atomics/atomic_integral/nonmembers.cc: New test.
2932         * testsuite/29_atomics/atomic_integral/requirements/typedefs.cc: New
2933         test.
2934
2935 2018-05-23  Jonathan Wakely  <jwakely@redhat.com>
2936
2937         * include/bits/fs_path.h (path::__is_encoded_char): Change from class
2938         template to alias template.
2939         (path::__value_type_is_char): Use remove_const_t.
2940         (path:_S_string_from_iter): New helper function.
2941         (path::_S_convert(InputIter, __null_terminated))
2942         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
2943         Use _S_string_from_iter.
2944         (path::string<_CharT, _Allocator>(const _Allocator&)): Allow sharing
2945         rep for COW strings.
2946         * include/experimental/bits/fs_path.h (path::__is_encoded_char):
2947         Change from class template to alias template.
2948         (path::__value_type_is_char): Use remove_const.
2949         (path:_S_string_from_iter): New helper function.
2950         (path::_S_convert(InputIter, __null_terminated))
2951         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
2952         Use _S_string_from_iter.
2953         * testsuite/27_io/filesystem/path/append/source.cc: Test appending
2954         wide strings.
2955         * testsuite/27_io/filesystem/path/concat/strings.cc: Check for exact
2956         string equality, not path equivalence.
2957         * testsuite/27_io/filesystem/path/construct/format.cc: Check
2958         construction from std::string and std::wstring and input iterators.
2959         * testsuite/27_io/filesystem/path/construct/locale.cc: Check
2960         construction from iterators.
2961         * testsuite/experimental/filesystem/path/concat/strings.cc: Check for
2962         exact string equality, not path equivalence.
2963         * testsuite/experimental/filesystem/path/construct/locale.cc: Check
2964         construction from iterators.
2965
2966         * include/bits/fs_path.h (path::_M_type): Change default member
2967         initializer to _Filename.
2968         (path::begin): Create past-the-end iterator for empty path.
2969         * src/filesystem/std-path.cc (path::remove_filename()): Remove
2970         debugging check.
2971         (path::has_relative_path()): Return false for empty filenames.
2972         (path::_M_split_cmpts): Set _M_type to _Filename for empty paths.
2973         Fix offset of empty final component.
2974         * testsuite/27_io/filesystem/path/itr/components.cc: New.
2975         * testsuite/27_io/filesystem/path/itr/traversal.cc: Add new inputs.
2976
2977 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
2978
2979         Add support for opening file streams from wide character strings.
2980         * config/io/basic_file_stdio.cc [_GLIBCXX_HAVE__WFOPEN]
2981         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
2982         Define new overload.
2983         * config/io/basic_file_stdio.h [_GLIBCXX_HAVE__WFOPEN]
2984         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
2985         Declare new overload.
2986         * configure.ac: Check for _wfopen.
2987         * crossconfig.m4: Likewise.
2988         * configure: Regenerate.
2989         * config.h.in: Regenerate.
2990         * include/bits/fstream.tcc [_GLIBCXX_HAVE__WFOPEN]
2991         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
2992         Define new overload.
2993         * include/std/fstream [_GLIBCXX_HAVE__WFOPEN]
2994         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
2995         Declare new overload.
2996         [_GLIBCXX_HAVE__WFOPEN]
2997         (basic_ifstream<C,T>::basic_ifstream(const wchar_t*, openmode))
2998         (basic_ifstream<C,T>::basic_open(const wchar_t*, openmode))
2999         (basic_ofstream<C,T>::basic_ifstream(const wchar_t*, openmode))
3000         (basic_ofstream<C,T>::basic_open(const wchar_t*, openmode))
3001         (basic_fstream<C,T>::basic_ifstream(const wchar_t*, openmode))
3002         (basic_fstream<C,T>::basic_open(const wchar_t*, openmode)): Define
3003         new overloads.
3004         * testsuite/27_io/basic_filebuf/open/wchar_t/1.cc: New.
3005         * testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: New.
3006         * testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: New.
3007         * testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: New.
3008         * testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: New.
3009         * testsuite/27_io/basic_fstream/cons/wchar_t/1.cc: New.
3010         * testsuite/27_io/basic_fstream/open/wchar_t/1.cc: New.
3011
3012 2018-05-21  François Dumont  <fdumont@gcc.gnu.org>
3013
3014         PR libstdc++/85845
3015         * include/bits/stl_tree.h
3016         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): Fix noexcept
3017         qualification.
3018
3019 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
3020
3021         * src/filesystem/std-ops.cc (absolute): Report an error for empty
3022         paths.
3023         (weakly_canonical(const path&)): Do not call canonical on empty path.
3024         (weakly_canonical(const path&, error_code&)): Likewise.
3025         * testsuite/27_io/filesystem/operations/absolute.cc: Check for errors.
3026
3027         PR libstdc++/85818
3028         * testsuite/experimental/filesystem/path/preferred_separator.cc: Add
3029         dg-require-filesystem-ts.
3030
3031         PR libstdc++/85843
3032         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Explicitly
3033         initialize base class to avoid warnings.
3034
3035 2018-05-19  Jonathan Wakely  <jwakely@redhat.com>
3036
3037         * src/c++11/codecvt.cc (__codecvt_utf8_base<wchar_t>::do_in)
3038         [__SIZEOF_WCHAR_T__==2 && __BYTE_ORDER__!=__ORDER_BIG_ENDIAN__]: Set
3039         little_endian element in bitmask.
3040         * testsuite/22_locale/codecvt/codecvt_utf8/69703.cc: Run all tests.
3041         * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: New.
3042
3043 2018-05-18  François Dumont  <fdumont@gcc.gnu.org>
3044
3045         * include/bits/stl_tree.h
3046         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): New.
3047         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, true_type)): New, use latter.
3048         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, false_type)): New.
3049         (_Rb_tree(_Rb_tree&&, _Node_allocator&&)): Adapt, use latters.
3050         * include/debug/map.h
3051         (map(map&&, const_allocator_type&)): Add noexcept qualitication.
3052         * include/debug/multimap.h
3053         (multimap(multimap&&, const_allocator_type&)): Likewise.
3054         * include/debug/set.h
3055         (set(set&&, const_allocator_type&)): Likewise.
3056         * include/debug/multiset.h
3057         (multiset(multiset&&, const_allocator_type&)): Likewise.
3058         * testsuite/23_containers/map/cons/noexcept_default_construct.cc:
3059         Add checks.
3060         * testsuite/23_containers/map/cons/noexcept_move_construct.cc:
3061         Add checks.
3062         * testsuite/23_containers/multimap/cons/noexcept_default_construct.cc:
3063         Add checks.
3064         * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc:
3065         Add checks.
3066         * testsuite/23_containers/multiset/cons/noexcept_default_construct.cc:
3067         Add checks.
3068         * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc:
3069         Add checks.
3070         * testsuite/23_containers/set/cons/noexcept_default_construct.cc:
3071         Add checks.
3072         * testsuite/23_containers/set/cons/noexcept_move_construct.cc:
3073         Add checks.
3074
3075 2018-05-18  Jason Merrill  <jason@redhat.com>
3076
3077         * include/bits/stl_deque.h (_Deque_iterator): Constrain constructor
3078         for conversion to const_iterator.  Add defaulted copy ops.
3079         * libsupc++/new (bad_alloc): Add defaulted copy ops.
3080         * libsupc++/exception.h (exception): Add defaulted copy ops.
3081         * include/std/system_error (system_error): Add defaulted copy ops.
3082         * include/std/stdexcept (domain_error, invalid_argument)
3083         (length_error, out_of_range, range_error, overflow_error)
3084         (underflow_error): Add defaulted copy ops.
3085         * include/bits/stl_iterator.h (reverse_iterator): Add defaulted
3086         copy assignment.
3087         * include/bits/allocator.h (allocator): Add defaulted copy assignment.
3088         * include/ext/throw_allocator.h (condition_base): Add defaulted
3089         default and copy ctor and copy assignment.
3090
3091 2018-05-18  Jonathan Wakely  <jwakely@redhat.com>
3092
3093         PR libstdc++/85098
3094         * include/bits/regex.h [__cplusplus < 201703L] (basic_regex::icase)
3095         (basic_regex::nosubs, basic_regex::optimize, basic_regex::collate)
3096         (basic_regex::ECMAScript, basic_regex::basic, basic_regex::extended)
3097         (basic_regex::awk, basic_regex::grep, basic_regex::egrep): Add
3098         definitions.
3099         * include/bits/regex_automaton.h (_NFA::_M_insert_state): Adjust
3100         whitespace.
3101         * include/bits/regex_compiler.tcc (__INSERT_REGEX_MATCHER): Add
3102         braces around body of do-while.
3103         * testsuite/28_regex/basic_regex/85098.cc: New
3104
3105 2018-05-17  Jonathan Wakely  <jwakely@redhat.com>
3106
3107         PR libstdc++/85818
3108         * src/filesystem/path.cc (path::preferred_separator): Add used
3109         attribute.
3110         * testsuite/experimental/filesystem/path/preferred_separator.cc: New.
3111
3112         PR libstdc++/85812
3113         * libsupc++/cxxabi_init_exception.h (__cxa_free_exception): Declare.
3114         * libsupc++/exception_ptr.h (make_exception_ptr) [__cpp_exceptions]:
3115         Refactor to separate non-throwing and throwing implementations.
3116         [__cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI]: Deallocate the memory
3117         if constructing the object throws.
3118
3119 2018-05-15  Jonathan Wakely  <jwakely@redhat.com>
3120
3121         PR libstdc++/85749
3122         * include/bits/random.h (__detail::__is_seed_seq): New SFINAE helper.
3123         (linear_congruential_engine, mersenne_twister_engine)
3124         (subtract_with_carry_engine, discard_block_engine)
3125         (independent_bits_engine, shuffle_order_engine): Use __is_seed_seq to
3126         constrain function templates taking seed sequences.
3127         * include/bits/random.tcc (linear_congruential_engine::seed(_Sseq&))
3128         (mersenne_twister_engine::seed(_Sseq&))
3129         (subtract_with_carry_engine::seed(_Sseq&)): Change return types to
3130         match declarations.
3131         * include/ext/random (simd_fast_mersenne_twister_engine): Use
3132         __is_seed_seq to constrain function templates taking seed sequences.
3133         * include/ext/random.tcc (simd_fast_mersenne_twister_engine::seed):
3134         Change return type to match declaration.
3135         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
3136         New.
3137         * testsuite/26_numerics/random/independent_bits_engine/cons/
3138         seed_seq2.cc: New.
3139         * testsuite/26_numerics/random/linear_congruential_engine/cons/
3140         seed_seq2.cc: New.
3141         * testsuite/26_numerics/random/mersenne_twister_engine/cons/
3142         seed_seq2.cc: New.
3143         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
3144         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
3145         New.
3146         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/
3147         seed_seq2.cc: New.
3148         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/
3149         seed_seq2.cc: New.
3150
3151         PR libstdc++/83891
3152         * include/bits/fs_path.h (path::is_absolute()): Use same definition
3153         for all operating systems.
3154         * include/experimental/bits/fs_path.h (path::is_absolute()): Likewise.
3155         * testsuite/27_io/filesystem/path/query/is_absolute.cc: New.
3156         * testsuite/27_io/filesystem/path/query/is_relative.cc: Fix comment.
3157         * testsuite/experimental/filesystem/path/query/is_absolute.cc: New.
3158
3159         * testsuite/27_io/filesystem/path/decompose/extension.cc: Remove
3160         unused <vector> header.
3161         * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
3162         * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
3163         * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
3164         * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
3165         * testsuite/27_io/filesystem/path/query/has_relative_path.cc:
3166         Likewise.
3167         * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
3168         Likewise.
3169         * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
3170         * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
3171         * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
3172         * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
3173         * testsuite/experimental/filesystem/path/decompose/extension.cc:
3174         Likewise.
3175         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
3176         * testsuite/experimental/filesystem/path/query/has_extension.cc:
3177         Likewise.
3178         * testsuite/experimental/filesystem/path/query/has_filename.cc:
3179         Likewise.
3180         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
3181         Likewise.
3182         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
3183         Likewise.
3184         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
3185         Likewise.
3186         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
3187         Likewise.
3188         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
3189         Likewise.
3190         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
3191         * testsuite/experimental/filesystem/path/query/is_relative.cc:
3192         Likewise.
3193
3194         PR libstdc++/84159
3195         * include/bits/fs_path.h (path::operator/=, path::append): Construct
3196         temporary path before calling _M_append.
3197         (path::_M_append): Change parameter to path and implement C++17
3198         semantics.
3199         * testsuite/27_io/filesystem/path/append/path.cc: Add helper function
3200         and more examples from the standard.
3201         * testsuite/27_io/filesystem/path/append/source.cc: New.
3202         * testsuite/27_io/filesystem/path/decompose/filename.cc: Add comment.
3203         * testsuite/27_io/filesystem/path/nonmember/append.cc: New.
3204
3205         * include/std/variant (__gen_vtable_impl::__visit_invoke): Qualify
3206         __invoke to prevent ADL.
3207
3208 2018-05-14  Jonathan Wakely  <jwakely@redhat.com>
3209
3210         PR libstdc++/81256
3211         * include/bits/fstream.tcc (basic_filebuf::close): Do not swallow
3212         exceptions from _M_terminate_output().
3213         * include/std/fstream (basic_filebuf::~basic_filebuf): Swallow any
3214         exceptions from close().
3215         * testsuite/27_io/basic_filebuf/close/81256.cc: New.
3216
3217         * include/bits/valarray_array.h (__valarray_get_memory): Remove.
3218         (__valarray_get_storage): Call operator new directly. Remove ignored
3219         top-level restrict qualifier and add malloc attribute instead.
3220         (_Array<_Tp>::_Array(size_t)): Remove unused constructor.
3221
3222         PR libstdc++/67554
3223         * include/bits/valarray_array.h (_Array_copy_ctor<_Tp, true>)
3224         (_Array_copier<_Tp, true>): Do not pass null pointers to memcpy.
3225
3226         PR libstdc++/82966
3227         * include/bits/node_handle.h (_Node_handle_common::_M_swap): Use value
3228         instead of type.
3229         * testsuite/23_containers/set/modifiers/node_swap.cc: New.
3230
3231 2018-05-13  Ville Voutilainen  <ville.voutilainen@gmail.com>
3232
3233         PR libstdc++/80165
3234         * testsuite/20_util/variant/80165.cc: New.
3235
3236 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
3237
3238         * doc/xml/faq.xml: Link to C++17 status. Add note to outdated answer.
3239         * doc/xml/manual/debug_mode.xml: Add array and forward_list to list
3240         of C++11 containers with Debug Mode support.
3241         * doc/xml/manual/using.xml: Document Dual ABI for ios_base::failure.
3242         * doc/html/*: Regenerate.
3243
3244 2018-05-10  Jason Merrill  <jason@redhat.com>
3245
3246         * include/bits/regex_compiler.h (_S_cache_size): Change from
3247         function to variable.
3248
3249 2018-05-10  Edward Smith-Rowland  <3dw4rd@verizon.net>
3250
3251         PR libstdc++/83140 - assoc_legendre returns negated value when m is odd
3252         * include/tr1/legendre_function.tcc (__assoc_legendre_p): Add __phase
3253         argument defaulted to +1.  Doxy comments on same.
3254         * testsuite/special_functions/02_assoc_legendre/
3255         check_value.cc: Regen.
3256         * testsuite/tr1/5_numerical_facilities/special_functions/
3257         02_assoc_legendre/check_value.cc: Regen.
3258
3259 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
3260
3261         PR libstdc++/85729
3262         * include/bits/c++config.h (__replacement_assert): Add linkage
3263         specification.
3264         * include/bits/std_abs.h: Add comment to closing brace of block.
3265         * include/c_global/cstddef: Add linkage specification.
3266         * include/c_global/cstring: Likewise.
3267         * include/c_global/cwchar: Likewise.
3268
3269 2018-05-09  François Dumont  <fdumont@gcc.gnu.org>
3270
3271         * include/debug/safe_iterator.h (_Safe_iterator<>::_M_constant()):
3272         Rename in...
3273         (_Safe_iterator<>::_S_constant()): ...that.
3274         * include/debug/safe_local_iterator.h
3275         (_Safe_local_iterator<>::_M_constant()): Rename in...
3276         (_Safe_local_iterator<>::_S_constant()): ...that.
3277         * include/debug/formatter.h: Remove bits/cpp_type_traits.h include.
3278         (_Iterator_state::__rbegin): New.
3279         (_Iterator_state::__rmiddle): New.
3280         (_Iterator_state::__rend): New.
3281         (_Parameter::_Parameter(const _Safe_iterator<>&, const char*,
3282         _Is_iterator)): Use _Safe_iterator<>::_S_constant. Grab normal underlying
3283         iterator type.
3284         (_Parameter::_Parameter(const _Safe_local_iterator<>&, const char*,
3285         _Is_iterator)): Likewise.
3286         (_Parameter::_S_reverse_state(_Iterator_state)): New.
3287         (_Parameter(__gnu_cxx::__normal_iterator<> const&, const char*,
3288         _Is_iterator)): New.
3289         (_Parameter(std::reverse_iterator<> const&, const char*,
3290         _Is_iterator)): New.
3291         (_Parameter(std::reverse_iterator<_Safe_iterator<>> const&,
3292         const char*, _Is_iterator)): New.
3293         (_Parameter(std::move_iterator<> const&, const char*, _Is_iterator):
3294         New.
3295         (_Parameter(std::move_iterator<_Safe_iterator<>> const&, const char*,
3296         _Is_iterator)): New.
3297         * testsuite/24_iterators/move_iterator/debug_neg.cc: New.
3298         * testsuite/24_iterators/normal_iterator/debug_neg.cc: New.
3299         * testsuite/24_iterators/reverse_iterator/debug_neg.cc: New.
3300
3301 2018-05-09  Jonathan Wakely  <jwakely@redhat.com>
3302
3303         * include/bits/std_function.h (_Base_manager::_M_get_pointer):
3304         Use constexpr if in C++17 mode.
3305         (_Base_manager::_M_clone(_Any_data&, const _Any_data&, true_type)):
3306         Copy from const object.
3307         * testsuite/20_util/function/cons/non_copyconstructible.cc: New.
3308
3309 2018-05-08  François Dumont  <fdumont@gcc.gnu.org>
3310
3311         * src/c++11/debug.cc [_GLIBCXX_HAVE_EXECINFO_H]: Include execinfo.h.
3312         [_GLIBCXX_HAVE_EXECINFO_H](_Error_formatter::_M_error): Render
3313         backtrace.
3314
3315         * include/debug/macros.h (__glibcxx_check_valid_range_at): New.
3316         * include/debug/functions.h (__check_valid_range): Use latter.
3317         * include/debug/macros.h (__glibcxx_check_valid_constructor_range): New,
3318         use latter.
3319         * include/debug/deque
3320         (deque::deque<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
3321         * include/debug/forward_list
3322         (forward_list::forward_list<_Iter>(_Iter, _Iter, const _Alloc&)):
3323         Likewise.
3324         * include/debug/list
3325         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3326         * include/debug/list
3327         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3328         * include/debug/map.h
3329         (map::map<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3330         (map::map<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
3331         Likewise.
3332         * include/debug/multimap.h
3333         (multimap::multimap<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3334         (multimap::multimap<_Iter>(_Iter, _Iter, const _Compare&,
3335         const _Alloc&)): Likewise.
3336         * include/debug/set.h
3337         (set::set<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3338         (set::set<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
3339         Likewise.
3340         * include/debug/multiset.h
3341         (multiset::multiset<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3342         (multiset::multiset<_Iter>(_Iter, _Iter, const _Compare&,
3343         const _Alloc&)): Likewise.
3344         * include/debug/string
3345         (basic_string::basic_string<_Iter>(_Iter, _Iter, const _Alloc&)):
3346         Likewise.
3347         * include/debug/unordered_map
3348         (unordered_map::unordered_map<_Iter>(_Iter, _Iter, const _Alloc&)):
3349         Likewise.
3350         (unordered_multimap::unordered_multimap<_Iter>(_Iter, _Iter,
3351         const _Alloc&)): Likewise.
3352         * include/debug/unordered_set
3353         (unordered_set::unordered_set<_Iter>(_Iter, _Iter, const _Alloc&)):
3354         Likewise.
3355         (unordered_multiset::unordered_multiset<_Iter>(_Iter, _Iter,
3356         const _Alloc&)): Likewise.
3357         * include/debug/vector
3358         (vector::vector<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
3359
3360         * include/debug/formatter.h (_Error_formatter::_M_function): New.
3361         (_Error_formatter(const char*, unsigned int)): Adapt.
3362         (_Error_formatter::_M_at): Rename in...
3363         (_Error_formatter::_S_at): ...that and adapt.
3364         * include/debug/macros.h (_GLIBCXX_DEBUG_VERIFY_AT_F): New.
3365         (_GLIBCXX_DEBUG_VERIFY_AT, _GLIBCXX_DEBUG_VERIFY): Adapt.
3366         * src/c++11/debug.cc (_Error_formatter::_M_error): Render _M_function
3367         when available.
3368
3369 2018-05-08  Jonathan Wakely  <jwakely@redhat.com>
3370
3371         * include/bits/regex_automaton.h (_NFA_base::_M_paren_stack, _NFA):
3372         Use normal std::vector even in Debug Mode.
3373
3374         PR libstdc++/85672
3375         * include/Makefile.am [!ENABLE_FLOAT128]: Change c++config.h entry
3376         to #undef _GLIBCXX_USE_FLOAT128 instead of defining it to zero.
3377         * include/Makefile.in: Regenerate.
3378         * include/bits/c++config (_GLIBCXX_USE_FLOAT128): Move definition
3379         within conditional block.
3380
3381 2018-05-07  Jonathan Wakely  <jwakely@redhat.com>
3382
3383         * doc/xml/manual/using.xml (table.cmd_options): Document that the
3384         C++17 Filesystem implementation also needs -lstdc++fs.
3385
3386         PR libstdc++/85671
3387         * include/bits/fs_path.h (operator/): Permit copy elision.
3388         * include/experimental/bits/fs_path.h (operator/): Likewise.
3389
3390 2018-05-07  Edward Smith-Rowland  <3dw4rd@verizon.net>
3391
3392         Moar PR libstdc++/80506
3393         * include/bits/random.tcc (gamma_distribution::__generate_impl()):
3394         Fix magic number used in loop condition.
3395
3396 2018-05-04  Jonathan Wakely  <jwakely@redhat.com>
3397
3398         PR libstdc++/85642 fix is_nothrow_default_constructible<optional<T>>
3399         * include/std/optional (_Optional_payload): Add noexcept to default
3400         constructor. Re-indent.
3401         (_Optional_payload<_Tp, true, true, true>): Likewise. Add noexcept to
3402         constructor for copying disengaged payloads.
3403         (_Optional_payload<_Tp, true, false, true>): Likewise.
3404         (_Optional_payload<_Tp, true, true, false>): Likewise.
3405         (_Optional_payload<_Tp, true, false, false>): Likewise.
3406         * testsuite/20_util/optional/cons/85642.cc: New.
3407         * testsuite/20_util/optional/cons/value_neg.cc: Adjust dg-error lines.
3408
3409 2018-05-03  Jonathan Wakely  <jwakely@redhat.com>
3410
3411         PR libstdc++/82644
3412         * include/tr1/cmath [__STRICT_ANSI__] (hypergf, hypergl, hyperg): Use
3413         inline definitions instead of using-declarations.
3414         [__STRICT_ANSI__] (conf_hypergf, conf_hypergl, conf_hyperg): Likewise.
3415         * testsuite/tr1/5_numerical_facilities/special_functions/
3416         07_conf_hyperg/compile_cxx17.cc: New.
3417         * testsuite/tr1/5_numerical_facilities/special_functions/
3418         17_hyperg/compile_cxx17.cc: New.
3419
3420         PR libstdc++/84769
3421         * include/std/variant (visit): Qualify std::get call.
3422
3423         PR libstdc++/85632 use uintmax_t for arithmetic
3424         * src/filesystem/ops.cc (experimental::filesystem::space): Perform
3425         arithmetic in result type.
3426         * src/filesystem/std-ops.cc (filesystem::space): Likewise.
3427         * testsuite/27_io/filesystem/operations/space.cc: Check total capacity
3428         is greater than free space.
3429         * testsuite/experimental/filesystem/operations/space.cc: New.
3430
3431         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc: New.
3432         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
3433         New.
3434         * testsuite/20_util/remove_cvref/value.cc: New.
3435         * testsuite/20_util/remove_cvref/value_ext.cc: New.
3436
3437         PR libstdc++/84087 LWG DR 2268 basic_string default arguments
3438         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI=1]
3439         (append(const basic_string&, size_type, size_type)
3440         (assign(const basic_string&, size_type, size_type)
3441         (insert(size_type, const basic_string&, size_type, size_type)
3442         (replace(size_type,size_type,const basic_string&,size_type,size_type)
3443         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
3444         Add default arguments (LWG 2268).
3445         [_GLIBCXX_USE_CXX11_ABI=0]
3446         (append(const basic_string&, size_type, size_type)
3447         (assign(const basic_string&, size_type, size_type)
3448         (insert(size_type, const basic_string&, size_type, size_type)
3449         (replace(size_type,size_type,const basic_string&,size_type,size_type)
3450         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
3451         Likewise.
3452         * testsuite/21_strings/basic_string/dr2268.cc: New test.
3453
3454         PR libstdc++/84535
3455         * include/std/thread (thread::__not_same): New SFINAE helper.
3456         (thread::thread(_Callable&&, _Args&&...)): Add SFINAE constraint that
3457         first argument is not a std::thread. Add static assertion to check
3458         INVOKE expression is valid.
3459         (thread::thread(thread&), thread::thread(const thread&&)): Remove.
3460         (thread::_Invoke::_M_invoke, thread::_Invoke::operator()): Use
3461         __invoke_result for return types and remove exception specifications.
3462         * testsuite/30_threads/thread/cons/84535.cc: New.
3463
3464         * include/std/future (__async_result_of): Use __invoke_result instead
3465         of result_of.
3466
3467         * include/std/any (any_cast): Use __remove_cvref_t.
3468         * include/std/tuple (__make_tuple): Likewise.
3469         * include/std/type_traits (__remove_cvref_t): Define.
3470         (__result_of_memobj, __result_of_memfun): Use __remove_cvref_t.
3471         [__cplusplus > 201703L] (remove_cvref, remove_cvref_t): Define.
3472         * include/std/variant (__erased_hash): Use __remove_cvref_t.
3473
3474 2018-05-02  François Dumont  <fdumont@gcc.gnu.org>
3475
3476         * include/bits/deque.tcc (deque<>::_M_assign_aux): Cast to void to
3477         ensure overloaded comma not used.
3478         * include/bits/list.tcc (list<>::_M_assign_dispatch): Likewise.
3479         * include/bits/vector.tcc (vector<>::_M_assign_aux): Likewise.
3480         * include/bits/stl_bvector.h (vector<bool>::_M_assign_aux): Likewise.
3481         * testsuite/23_containers/deque/modifiers/assign/1.cc: New.
3482         * testsuite/23_containers/list/modifiers/assign/1.cc: New.
3483         * testsuite/23_containers/vector/bool/modifiers/assign/1.cc: New.
3484         * testsuite/23_containers/vector/modifiers/assign/1.cc: New.
3485
3486 2018-05-02  Jonathan Wakely  <jwakely@redhat.com>
3487
3488         PR libstdc++/68197
3489         * include/bits/ios_base.h (ios_base::iword, ios_base::pword): Cast
3490         indices to unsigned.
3491         * src/c++11/ios.cc (ios_base::_M_grow_words): Treat negative indices
3492         as failure. Refactor error handling.
3493         * testsuite/27_io/ios_base/storage/68197.cc: New.
3494
3495         PR libstdc++/57997
3496         PR libstdc++/83860
3497         * include/bits/gslice_array.h (gslice_array): Define default
3498         constructor as deleted, as per C++11 standard.
3499         * include/bits/mask_array.h (mask_array): Likewise.
3500         * include/bits/slice_array.h (slice_array): Likewise.
3501         * include/bits/valarray_after.h (_GBase, _GClos, _IBase, _IClos): Move
3502         to namespace __detail.
3503         (_GBase::_M_expr, _IBase::_M_expr): Use _ValArrayRef for type of data
3504         members.
3505         * include/bits/valarray_before.h (_ValArrayRef): New helper for type
3506         of data members in closure objects.
3507         (_FunBase, _ValFunClos, _RefFunClos, _UnBase, _UnClos, _BinBase)
3508         (_BinBase2, _BinBase1, _BinClos, _SBase, _SClos): Move to namespace
3509         __detail.
3510         (_FunBase::_M_expr, _UnBase::_M_expr, _BinBase::_M_expr1)
3511         (_BinBase::_M_expr2, _BinBase2::_M_expr1, _BinBase1::_M_expr2)
3512         (_SBase::_M_expr): Use _ValArrayRef for type of data members.
3513         * include/std/valarray (_UnClos, _BinClos, _SClos, _GClos, _IClos)
3514         (_ValFunClos, _RefFunClos): Move to namespace __detail and add
3515         using-declarations to namespace std.
3516         * testsuite/26_numerics/valarray/83860.cc: New.
3517
3518         * testsuite/backward/strstream_move.cc: Remove duplicate function
3519         call.
3520
3521         PR libstdc++/69608
3522         * include/backward/strstream (strstreambuf): Define move constructor
3523         and move assignment operator.
3524         (istrstream, ostrstream, strstream): Likewise.
3525         * testsuite/backward/strstream_move.cc: New.
3526
3527 2018-05-01  Tulio Magno Quites Machado Filho  <tuliom@linux.vnet.ibm.com>
3528
3529         PR libstdc++/84654
3530         * acinclude.m4: Set ENABLE_FLOAT128 instead of _GLIBCXX_USE_FLOAT128.
3531         * config.h.in: Remove references to _GLIBCXX_USE_FLOAT128.
3532         * configure: Regenerate.
3533         * include/Makefile.am: Replace the value of _GLIBCXX_USE_FLOAT128
3534         based on ENABLE_FLOAT128.
3535         * include/Makefile.in: Regenerate.
3536         * include/bits/c++config: Define _GLIBCXX_USE_FLOAT128.
3537         [!defined(__FLOAT128__) && !defined(__SIZEOF_FLOAT128__)]: Undefine
3538         _GLIBCXX_USE_FLOAT128.
3539
3540 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
3541
3542         * configure: Regenerated.
3543
3544 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
3545
3546         * configure: Regenerated.
3547
3548 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
3549             Jakub Jelinek  <jakub@redhat.com>
3550
3551         PR libstdc++/85442
3552         * src/c++11/Makefile.am: Don't generate debuginfo again for
3553         cxx11-ios_failure-lt.s and cxx11-ios_failure.s files.
3554         * src/c++11/Makefile.in: Regenerate.
3555
3556 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
3557
3558         PR libstdc++/84442
3559         * testsuite/30_threads/thread/cons/terminate.cc
3560         [!_GLIBCXX_USE_C99_STDLIB] : Use _exit or std::exit instead of _Exit.
3561
3562 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
3563
3564         PR jit/85384
3565         * configure: Regenerate.
3566
3567 2018-04-16  Jonathan Wakely  <jwakely@redhat.com>
3568
3569         * testsuite/experimental/filesystem/file_status/1.cc: Add
3570         -DUSE_FILESYSTEM_TS to dg-options.
3571         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
3572         Likewise.
3573         * testsuite/experimental/filesystem/iterators/pop.cc: Likewise.
3574         * testsuite/experimental/filesystem/iterators/
3575         recursive_directory_iterator.cc: Likewise.
3576         * testsuite/experimental/filesystem/operations/absolute.cc: Likewise.
3577         * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
3578         * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
3579         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
3580         * testsuite/experimental/filesystem/operations/create_directories.cc:
3581         Likewise.
3582         * testsuite/experimental/filesystem/operations/create_directory.cc:
3583         Likewise.
3584         * testsuite/experimental/filesystem/operations/create_symlink.cc:
3585         Likewise.
3586         * testsuite/experimental/filesystem/operations/current_path.cc:
3587         Likewise.
3588         * testsuite/experimental/filesystem/operations/equivalent.cc: Likewise.
3589         * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
3590         * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
3591         * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
3592         * testsuite/experimental/filesystem/operations/last_write_time.cc:
3593         Likewise.
3594         * testsuite/experimental/filesystem/operations/permissions.cc:
3595         Likewise.
3596         * testsuite/experimental/filesystem/operations/read_symlink.cc:
3597         Likewise.
3598         * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
3599         * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
3600         * testsuite/experimental/filesystem/operations/status.cc: Likewise.
3601         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
3602         Likewise.
3603         * testsuite/experimental/filesystem/path/append/path.cc: Likewise.
3604         * testsuite/experimental/filesystem/path/assign/assign.cc: Likewise.
3605         * testsuite/experimental/filesystem/path/assign/copy.cc: Likewise.
3606         * testsuite/experimental/filesystem/path/compare/compare.cc: Likewise.
3607         * testsuite/experimental/filesystem/path/compare/path.cc: Likewise.
3608         * testsuite/experimental/filesystem/path/compare/strings.cc: Likewise.
3609         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
3610         * testsuite/experimental/filesystem/path/concat/strings.cc: Likewise.
3611         * testsuite/experimental/filesystem/path/construct/copy.cc: Likewise.
3612         * testsuite/experimental/filesystem/path/construct/default.cc:
3613         Likewise.
3614         * testsuite/experimental/filesystem/path/construct/locale.cc: Likewise.
3615         * testsuite/experimental/filesystem/path/construct/range.cc: Likewise.
3616         * testsuite/experimental/filesystem/path/construct/string_view.cc:
3617         Likewise.
3618         * testsuite/experimental/filesystem/path/decompose/extension.cc:
3619         Likewise.
3620         * testsuite/experimental/filesystem/path/decompose/filename.cc:
3621         Likewise.
3622         * testsuite/experimental/filesystem/path/decompose/parent_path.cc:
3623         Likewise.
3624         * testsuite/experimental/filesystem/path/decompose/relative_path.cc:
3625         Likewise.
3626         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
3627         Likewise.
3628         * testsuite/experimental/filesystem/path/decompose/root_name.cc:
3629         Likewise.
3630         * testsuite/experimental/filesystem/path/decompose/root_path.cc:
3631         Likewise.
3632         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
3633         * testsuite/experimental/filesystem/path/generic/generic_string.cc:
3634         Likewise.
3635         * testsuite/experimental/filesystem/path/itr/traversal.cc: Likewise.
3636         * testsuite/experimental/filesystem/path/modifiers/clear.cc: Likewise.
3637         * testsuite/experimental/filesystem/path/modifiers/make_preferred.cc:
3638         Likewise.
3639         * testsuite/experimental/filesystem/path/modifiers/remove_filename.cc:
3640         Likewise.
3641         * testsuite/experimental/filesystem/path/modifiers/replace_extension.cc:
3642         Likewise.
3643         * testsuite/experimental/filesystem/path/modifiers/replace_filename.cc:
3644         Likewise.
3645         * testsuite/experimental/filesystem/path/modifiers/swap.cc: Likewise.
3646         * testsuite/experimental/filesystem/path/native/string.cc: Likewise.
3647         * testsuite/experimental/filesystem/path/nonmember/hash_value.cc:
3648         Likewise.
3649         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
3650         * testsuite/experimental/filesystem/path/query/has_extension.cc:
3651         Likewise.
3652         * testsuite/experimental/filesystem/path/query/has_filename.cc:
3653         Likewise.
3654         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
3655         Likewise.
3656         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
3657         Likewise.
3658         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
3659         Likewise.
3660         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
3661         Likewise.
3662         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
3663         Likewise.
3664         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
3665         * testsuite/experimental/filesystem/path/query/is_relative.cc:
3666         Likewise.
3667
3668 2018-04-13  Jonathan Wakely  <jwakely@redhat.com>
3669
3670         * src/c++11/Makefile.am: Fix sed command.
3671         * src/c++11/Makefile.in: Regenerate.
3672
3673         * src/c++11/Makefile.am: Rewrite sed rule to be less fragile and to
3674         handle mangled names starting with double underscores on darwin.
3675         * src/c++11/Makefile.in: Regenerate.
3676
3677 2018-04-12  Jonathan Wakely  <jwakely@redhat.com>
3678
3679         * src/c++11/Makefile.am: Fix comment.
3680         * src/c++11/Makefile.in: Regenerate.
3681         * src/c++11/cxx11-ios_failure.cc: Fix comment.
3682         * src/c++98/ios_failure.cc: Likewise.
3683
3684         * src/c++11/ios.cc: Remove redundant macro definition.
3685
3686 2018-04-11  Jonathan Wakely  <jwakely@redhat.com>
3687
3688         * doc/xml/manual/abi.xml: Document header locations in recent
3689         releases.
3690         * doc/xml/manual/evolution.xml: Add API changes since GCC 5.
3691         * doc/xml/manual/spine.xml: Update copyright years.
3692         * doc/xml/manual/strings.xml: Adjust tolower example to avoid
3693         undefined behaviour.
3694         * doc/xml/manual/test.xml: Update outdated notes on VERIFY in tests.
3695         * doc/html/*: Regenerate.
3696
3697 2018-04-10  Jonathan Wakely  <jwakely@redhat.com>
3698
3699         * doc/xml/faq.xml: Update links to archived copy of SGI STL docs.
3700         * doc/xml/manual/backwards_compatibility.xml: Likewise.
3701         * doc/xml/manual/containers.xml: Likewise.
3702         * doc/xml/manual/debug_mode.xml: Likewise.
3703         * doc/xml/manual/extensions.xml: Likewise.
3704         * doc/xml/manual/policy_data_structures_biblio.xml: Likewise.
3705         * doc/xml/manual/using.xml: Likewise.
3706         * doc/xml/manual/utilities.xml: Likewise.
3707
3708         PR libstdc++/85222
3709         * src/c++11/Makefile.am [ENABLE_DUAL_ABI]: Add special rules for
3710         cxx11-ios_failure.cc to rewrite type info for __ios_failure.
3711         * src/c++11/Makefile.in: Regenerate.
3712         * src/c++11/cxx11-ios_failure.cc (__ios_failure, __iosfail_type_info):
3713         New types.
3714         [_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
3715         * src/c++11/ios.cc (__throw_ios_failure): Remove definition.
3716         * src/c++98/ios_failure.cc (__construct_ios_failure)
3717         (__destroy_ios_failure, is_ios_failure_handler): New functions.
3718         [!_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
3719         * testsuite/27_io/ios_base/failure/dual_abi.cc: New.
3720         * testsuite/27_io/basic_ios/copyfmt/char/1.cc: Revert changes to
3721         handler types, to always catch std::ios_base::failure.
3722         * testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
3723         * testsuite/27_io/basic_istream/extractors_arithmetic/char/
3724         exceptions_failbit.cc: Likewise.
3725         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
3726         exceptions_failbit.cc: Likewise.
3727         * testsuite/27_io/basic_istream/extractors_other/char/
3728         exceptions_null.cc: Likewise.
3729         * testsuite/27_io/basic_istream/extractors_other/wchar_t/
3730         exceptions_null.cc: Likewise.
3731         * testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
3732         * testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
3733         * testsuite/27_io/basic_ostream/inserters_other/char/
3734         exceptions_null.cc: Likewise.
3735         * testsuite/27_io/basic_ostream/inserters_other/wchar_t/
3736         exceptions_null.cc: Likewise.
3737         * testsuite/27_io/ios_base/storage/2.cc: Likewise.
3738
3739 2018-04-05  Jonathan Wakely  <jwakely@redhat.com>
3740
3741         * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Qualify
3742         __get calls to avoid ADL and avoid ambiguity due to Clang bug.
3743
3744 2018-04-03  Jonathan Wakely  <jwakely@redhat.com>
3745
3746         PR libstdc++/85183
3747         * include/std/variant (_Move_assign_base::operator=): Fix incorrect
3748         value categories.
3749         * testsuite/20_util/variant/85183.cc: New.
3750
3751 2018-03-26  Jonathan Wakely  <jwakely@redhat.com>
3752
3753         * include/std/variant (__get): Qualify calls to avoid ADL.
3754         (__select_index): Adjust whitespace.
3755         (variant): Add using-declaration to workaround Clang bug.
3756
3757 2018-03-22  Jonathan Wakely  <jwakely@redhat.com>
3758
3759         PR libstdc++/85040
3760         * include/bits/stl_function.h (greater::__not_overloaded)
3761         (less::__not_overloaded, greater_equal::__not_overloaded)
3762         (less_equal::__not_overloaded): Fix ambiguous specializations.
3763         * testsuite/20_util/function_objects/comparisons_pointer.cc: Add
3764         tests for type with overloaded operators.
3765
3766 2018-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3767
3768         PR libstdc++/77691
3769         * testsuite/experimental/memory_resource/resource_adaptor.cc:
3770         xfail execution on 32-bit Solaris/x86.
3771
3772 2018-03-21  Jonathan Wakely  <jwakely@redhat.com>
3773
3774         * testsuite/20_util/function_objects/comparisons_pointer.cc: Use
3775         VERIFY instead of assert.
3776         * testsuite/20_util/hash/84998.cc: New test.
3777         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc: New
3778         copy of test adjusted for Debug Mode.
3779         * testsuite/23_containers/vector/cons/destructible_neg.cc: Do not run
3780         test in Debug Mode.
3781
3782 2018-03-20  François Dumont  <fdumont@gcc.gnu.org>
3783
3784         PR libstdc++/84998
3785         * include/bits/stl_bvector.h: Fix std::hash friend declaration.
3786         * include/std/bitset: Likewise.
3787         * include/bits/stl_map.h (std::map<>): Fix _Rb_tree_merge_helper friend
3788         declaration.
3789         * include/bits/stl_multimap.h (std::multimap<>): Likewise.
3790         * include/bits/stl_multiset.h (std::multiset<>): Likewise.
3791         * include/bits/stl_set.h (std::set<>): Likewise.
3792         * include/bits/unordered_map.h (std::unordered_map<>): Fix
3793         _Hash_merge_helper friend declaration.
3794         (std::unordered_multimap<>): Likewise.
3795         * include/bits/unordered_set.h (std::unordered_set<>): Likewise.
3796         (std::unordered_multiset<>): Likewise.
3797
3798 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
3799
3800         * doc/xml/api.xml: www.fsf.org has moved to https. Also omit
3801         trailing slash for domain level link.
3802         * doc/xml/faq.xml: Ditto.
3803         * doc/xml/manual/appendix_free.xml (software): Ditto.
3804         * doc/xml/manual/intro.xml: Ditto.
3805         * doc/xml/manual/spine.xml: Ditto.
3806         * doc/xml/spine.xml: Ditto.
3807
3808 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
3809
3810         * doc/xml/manual/documentation_hacking.xml: Adjust link to
3811         docbook.org.
3812
3813 2018-03-17  Jonathan Wakely  <jwakely@redhat.com>
3814
3815         * testsuite/20_util/function_objects/comparisons_pointer.cc: Adjust
3816         to compile as C++98.
3817
3818 2018-03-14  Jonathan Wakely  <jwakely@redhat.com>
3819
3820         PR libstdc++/78420
3821         * include/bits/stl_function.h (greater<_Tp*>, less<_Tp*>)
3822         (greater_equal<_Tp*>, less_equal<_Tp>*): Add partial specializations
3823         to ensure total order for pointers.
3824         (greater<void>, less<void>, greater_equal<void>, less_equal<void>):
3825         Add operator() overloads for pointer arguments and make generic
3826         overloads dispatch to new _S_cmp functions when comparisons would
3827         use built-in operators for pointers.
3828         * testsuite/20_util/function_objects/comparisons_pointer.cc: New.
3829
3830 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
3831
3832         PR libstdc++/84773
3833         PR libstdc++/83662
3834         * crossconfig.m4: Check for aligned_alloc etc. on freebsd and mingw32.
3835         * configure: Regenerate.
3836         * include/c_global/cstdlib [_GLIBCXX_HAVE_ALIGNED_ALLOC]
3837         (aligned_alloc): Add using-declaration.
3838         * testsuite/18_support/aligned_alloc/aligned_alloc.cc: New test.
3839
3840 2018-03-09  François Dumont  <fdumont@gcc.gnu.org>
3841
3842         * python/libstdcxx/v6/printers.py (build_libstdcxx_dictionary):
3843         Fix std::_Fwd_list_iterator and std::_Fwd_list_const_iterator printers
3844         registration.
3845
3846 2018-03-09  Jonathan Wakely  <jwakely@redhat.com>
3847
3848         PR libstdc++/84769
3849         * include/std/variant (get<_Tp, _Types...>, get_if<_Tp, _Types...>):
3850         Qualify calls to get<_Np, Types...> and get_if<_Np, _Types...>.
3851
3852         src/filesystem/ops.cc (create_dir): Pass error_code to is_directory.
3853         src/filesystem/std-ops.cc (create_dir): Likewise.
3854
3855 2018-03-08  François Dumont  <fdumont@gcc.gnu.org>
3856
3857         * python/libstdcxx/v6/printers.py (NodeIteratorPrinter): New.
3858         (StdListIteratorPrinter): Inherit from latter.
3859         (StdFwdListIteratorPrinter): New, inherit from latter.
3860         (StdDebugIteratorPrinter.to_string): Use non-debug iterator printer
3861         when iterator has no associated container.
3862         (build_libstdcxx_dictionary): Add __gnu_cxx::_Fwd_list_iterator and
3863         __gnu_cxx::_Fwd_list_const_iterator printers. Remove __norm namespace
3864         registrations.
3865         * testsuite/libstdc++-prettyprinters/debug.cc: Adapt.
3866         * testsuite/libstdc++-prettyprinters/debug_cxx11.cc: Adapt.
3867
3868 2018-03-06  Ville Voutilainen  <ville.voutilainen@gmail.com>
3869
3870         PR libstdc++/84601
3871         * include/std/optional (_Optional_payload): Split into multiple
3872         specializations that can handle different cases of trivial or
3873         non-trivial assignment operators.
3874         * testsuite/20_util/optional/84601.cc: New.
3875         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
3876
3877 2018-03-02  Jonathan Wakely  <jwakely@redhat.com>
3878
3879         PR libstdc++/84671
3880         * include/bits/parse_numbers.h (_Number_help): Add partial
3881         specialization to handle digit separators. Adjust partial
3882         specialization for recursion temrination to require _Pow == 1ULL.
3883         * testsuite/20_util/duration/literals/84671.cc: New
3884
3885 2018-02-27  Ville Voutilainen  <ville.voutilainen@gmail.com>
3886
3887         Implement the missing bits of LWG 2769
3888         * include/std/any (any_cast(const any&)): Add static_assert.
3889         (any_cast(any&)): Likewise.
3890         (any_cast(any&&)): Likewise, and remove the handling
3891         for copyable-but-not-movable type.
3892         * testsuite/20_util/any/misc/any_cast.cc: Adjust.
3893         * testsuite/20_util/any/misc/any_cast_neg.cc: Likewise, and
3894         add new tests.
3895
3896 2018-02-23  Jonathan Wakely  <jwakely@redhat.com>
3897
3898         PR libstdc++/84532
3899         * include/std/thread (thread::__make_invoker): Construct tuple
3900         directly instead of using make_tuple.
3901         * testsuite/30_threads/async/84532.cc: New.
3902         * testsuite/30_threads/thread/84532.cc: New.
3903
3904 2018-02-20  François Dumont  <fdumont@gcc.gnu.org>
3905
3906         * include/ext/aligned_buffer.h [_GLIBCXX_INLINE_VERSION]
3907         (template<> __aligned_buffer): Define as __aligned_membuf alias.
3908
3909 2018-02-19  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
3910
3911         PR target/84148
3912         * configure: Regenerate.
3913
3914 2018-02-15  Jonathan Wakely  <jwakely@redhat.com>
3915
3916         PR libstdc++/81797
3917         * configure.ac (INCLUDE_DIR_NOTPARALLEL): Define.
3918         * configure: Regenerate.
3919         * include/Makefile.am (INCLUDE_DIR_NOTPARALLEL): Add .NOTPARALLEL when
3920         defined.
3921         * include/Makefile.in: Regenerate.
3922
3923 2018-01-29  Jonathan Wakely  <jwakely@redhat.com>
3924
3925         PR libstdc++/83833
3926         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
3927         Add -ffloat-store to options for m68k and ia32.
3928
3929         * doc/xml/faq.xml: Update copyright years.
3930         * doc/html/*: Regenerate.
3931
3932         PR libstdc++/83658
3933         * include/std/any (any::__do_emplace): Only set _M_manager after
3934         constructing the contained object.
3935         * testsuite/20_util/any/misc/any_cast_neg.cc: Adjust dg-error line.
3936         * testsuite/20_util/any/modifiers/83658.cc: New test.
3937
3938 2018-01-25  Jonathan Wakely  <jwakely@redhat.com>
3939
3940         PR libstdc++/81076
3941         * include/c_global/cstddef (__byte_operand): Define primary template.
3942         * testsuite/18_support/byte/81076.cc: New test.
3943
3944 2018-01-19  Christophe Lyon  <christophe.lyon@linaro.org>
3945
3946         * testsuite/ext/special_functions/airy_ai/check_nan.cc: Fix
3947         dg-options and dg-add-options order.
3948         * testsuite/ext/special_functions/airy_bi/check_nan.cc: Likewise.
3949         * testsuite/ext/special_functions/conf_hyperg/check_nan.cc:
3950         Likewise.
3951         * testsuite/ext/special_functions/hyperg/check_nan.cc: Likewise.
3952         * testsuite/special_functions/01_assoc_laguerre/check_nan.cc:
3953         Likewise.
3954         * testsuite/special_functions/02_assoc_legendre/check_nan.cc:
3955         Likewise.
3956         * testsuite/special_functions/03_beta/check_nan.cc: Likewise.
3957         * testsuite/special_functions/04_comp_ellint_1/check_nan.cc:
3958         Likewise.
3959         * testsuite/special_functions/05_comp_ellint_2/check_nan.cc:
3960         Likewise.
3961         * testsuite/special_functions/06_comp_ellint_3/check_nan.cc:
3962         Likewise.
3963         * testsuite/special_functions/06_comp_ellint_3/pr66689.cc:
3964         Likewise.
3965         * testsuite/special_functions/07_cyl_bessel_i/check_nan.cc:
3966         Likewise.
3967         * testsuite/special_functions/08_cyl_bessel_j/check_nan.cc:
3968         Likewise.
3969         * testsuite/special_functions/09_cyl_bessel_k/check_nan.cc:
3970         Likewise.
3971         * testsuite/special_functions/10_cyl_neumann/check_nan.cc:
3972         Likewise.
3973         * testsuite/special_functions/11_ellint_1/check_nan.cc: Likewise.
3974         * testsuite/special_functions/12_ellint_2/check_nan.cc: Likewise.
3975         * testsuite/special_functions/13_ellint_3/check_nan.cc: Likewise.
3976         * testsuite/special_functions/13_ellint_3/pr66689.cc: Likewise.
3977         * testsuite/special_functions/14_expint/check_nan.cc: Likewise.
3978         * testsuite/special_functions/15_hermite/check_nan.cc: Likewise.
3979         * testsuite/special_functions/16_laguerre/check_nan.cc: Likewise.
3980         * testsuite/special_functions/17_legendre/check_nan.cc: Likewise.
3981         * testsuite/special_functions/18_riemann_zeta/check_nan.cc:
3982         Likewise.
3983         * testsuite/special_functions/19_sph_bessel/check_nan.cc:
3984         Likewise.
3985         * testsuite/special_functions/20_sph_legendre/check_nan.cc:
3986         Likewise.
3987         * testsuite/special_functions/21_sph_neumann/check_nan.cc:
3988         Likewise.
3989
3990 2018-01-18  Uros Bizjak  <ubizjak@gmail.com>
3991
3992         * configure.ac (AC_CHECK_HEADERS): Add linux/types.h.  Conditionally
3993         include linux/types.h when checking linux/random.h header.
3994         * config.h.in: Regenerate.
3995         * configure: Ditto.
3996         * src/c++11/random.cc: Conditionally include linux/types.h.
3997
3998 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
3999
4000         * testsuite/17_intro/names.cc: Undefine 'y' on SPARC/Linux.
4001
4002 2018-01-16  Jonathan Wakely  <jwakely@redhat.com>
4003
4004         PR libstdc++/83834
4005         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace std::c[a-g]* wildcard
4006         pattern with exact match for std::cerr.
4007
4008 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
4009
4010         PR libstdc++/83833
4011         * include/bits/random.h (chi_squared_distribution::param): Update
4012         gamma distribution parameter.
4013         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc: New
4014         test.
4015
4016         PR libstdc++/83830
4017         * include/std/type_traits (has_unique_object_representations_v): Add
4018         variable template.
4019         * testsuite/20_util/has_unique_object_representations/value.cc: Check
4020         variable template.
4021
4022 2018-01-15  Ville Voutilainen  <ville.voutilainen@gmail.com>
4023
4024         Make optional conditionally
4025         trivially_{copy,move}_{constructible,assignable}
4026         * include/std/optional (_Optional_payload): Fix the comment in
4027         the class head and turn into a primary and one specialization.
4028         (_Optional_payload::_M_engaged): Strike the NSDMI.
4029         (_Optional_payload<_Tp, false>::operator=(const _Optional_payload&)):
4030         New.
4031         (_Optional_payload<_Tp, false>::operator=(_Optional_payload&&)):
4032         Likewise.
4033         (_Optional_payload<_Tp, false>::_M_get): Likewise.
4034         (_Optional_payload<_Tp, false>::_M_reset): Likewise.
4035         (_Optional_base_impl): Likewise.
4036         (_Optional_base): Turn into a primary and three specializations.
4037         (optional(nullopt)): Change the base init.
4038         * testsuite/20_util/optional/assignment/8.cc: New.
4039         * testsuite/20_util/optional/cons/trivial.cc: Likewise.
4040         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
4041
4042 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
4043
4044         PR libstdc++/80276
4045         * python/libstdcxx/v6/printers.py (strip_inline_namespaces): New.
4046         (get_template_arg_list): New.
4047         (StdVariantPrinter._template_args): Remove, use get_template_arg_list
4048         instead.
4049         (TemplateTypePrinter): Rewrite to work with gdb.Type objects instead
4050         of strings and regular expressions.
4051         (add_one_template_type_printer): Adapt to new TemplateTypePrinter.
4052         (FilteringTypePrinter): Add docstring. Match using startswith. Use
4053         strip_inline_namespaces instead of strip_versioned_namespace.
4054         (add_one_type_printer): Prepend namespace to match argument.
4055         (register_type_printers): Add type printers for char16_t and char32_t
4056         string types and for types using cxx11 ABI. Update calls to
4057         add_one_template_type_printer to provide default argument dicts.
4058         * testsuite/libstdc++-prettyprinters/80276.cc: New test.
4059         * testsuite/libstdc++-prettyprinters/whatis.cc: Remove tests for
4060         basic_string<unsigned char> and basic_string<signed char>.
4061         * testsuite/libstdc++-prettyprinters/whatis2.cc: Duplicate whatis.cc
4062         to test local variables, without overriding _GLIBCXX_USE_CXX11_ABI.
4063
4064 2018-01-14  Andreas Schwab  <schwab@linux-m68k.org>
4065
4066         PR libstdc++/81092
4067         * config/abi/post/ia64-linux-gnu/baseline_symbols.txt: Update.
4068
4069 2018-01-13  Tim Shen  <timshen@google.com>
4070
4071         PR libstdc++/83601
4072         * include/bits/regex.tcc (regex_replace): Fix escaping in sed.
4073         * testsuite/28_regex/algorithms/regex_replace/char/pr83601.cc: Tests.
4074         * testsuite/28_regex/algorithms/regex_replace/wchar_t/pr83601.cc: Tests.
4075
4076 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
4077
4078         PR libstdc++/64054
4079         * testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc:
4080         Remove dg-xfail-run-if.
4081
4082 2018-01-10  François Dumont  <fdumont@gcc.gnu.org>
4083
4084         * include/bits/forward_list.h
4085         (_Fwd_list_node_base(_Fwd_list_node_base&&)): New.
4086         (_Fwd_list_node_base& operator=(_Fwd_list_node_base&&)): New.
4087         (_Fwd_list_node_base(const _Fwd_list_node_base&)): Explicit delete.
4088         (_Fwd_list_node_base& operator=(const _Fwd_list_node_base&)): Likewise.
4089         (_Fwd_list_impl()): Add noexcept qualification.
4090         (_Fwd_list_impl(const _Node_alloc_type&)): Delete.
4091         (_Fwd_list_impl(_Fwd_list_impl&&)): New, default.
4092         (_Fwd_list_impl(_Fwd_list_impl&&, _Node_alloc_type&&)): New.
4093         (_Fwd_list_base()): Default.
4094         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&, true_type)): New.
4095         (_Fwd_list_base(_Fwd_list_base&&)): Default.
4096         (forward_list<>()): Default.
4097         (forward_list<>(forward_list&&)): Default.
4098         (forward_list(forward_list&&, _Node_alloc_type&&, false_type)): New.
4099         (forward_list(forward_list&&, _Node_alloc_type&&, true_type)): New.
4100         (forward_list(forward_list&&, const _Alloc&)): Adapt to use latters.
4101         * include/bits/forward_list.tcc
4102         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&)): Adapt to use
4103         _M_impl._M_head move assignment.
4104         (forward_list<>::merge(forward_list<>&&, _Comp)): Likewise.
4105         * testsuite/23_containers/forward_list/allocator/default_init.cc: New.
4106
4107 2018-01-09  Jonathan Wakely  <jwakely@redhat.com>
4108
4109         PR libstdc++/80276
4110         * python/libstdcxx/v6/printers.py (SharedPointerPrinter)
4111         (UniquePointerPrinter): Print correct template argument, not type of
4112         the pointer.
4113         (TemplateTypePrinter._recognizer.recognize): Handle failure to lookup
4114         a type.
4115         * testsuite/libstdc++-prettyprinters/cxx11.cc: Test unique_ptr of
4116         array type.
4117         * testsuite/libstdc++-prettyprinters/cxx17.cc: Test shared_ptr and
4118         weak_ptr of array types.
4119
4120 2018-01-09  François Dumont  <fdumont@gcc.gnu.org>
4121
4122         PR libstdc++/83709
4123         * include/bits/hashtable_policy.h
4124         (__distance_fwd(_Iterator, _Iterator, input_iterator_tag)): Return 1 if
4125         __first != __last.
4126         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, true_type)): New.
4127         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, false_type)):
4128         Add false_type parameter.
4129         (_Insert_base::insert): Adapt.
4130         * include/bits/hashtable.h (_Hashtable::operator=(initializzr_list<>)):
4131         Adapt.
4132         (_Hashtable::_M_insert(_Arg&&, const _NodeGen&, true_type, size_t)):
4133          Add __n_elt parameter, defaulted to 1.
4134         (_Hashtable::_M_insert_unique_node): Likewise. Use it to call rehash
4135         policy _M_need_rehash.
4136         (_Hashtable::_M_merge_unique): Pass target number of elements to add to
4137         produce only 1 rehash if necessary.
4138         * testsuite/23_containers/unordered_map/insert/83709.cc: New.
4139         * testsuite/23_containers/unordered_set/insert/83709.cc: New.
4140
4141 2018-01-09  Juraj Oršulić  <juraj.orsulic@fer.hr>
4142             Jonathan Wakely  <jwakely@redhat.com>
4143
4144         PR libstdc++/59253 (partial)
4145         * python/libstdcxx/v6/printers.py (SmartPtrIterator): Common iterator
4146         type for pointer stored by shared_ptr, weak_ptr and unique_ptr.
4147         (SharedPointerPrinter, UniquePointerPrinter): Treat stored values as
4148         children.
4149         * testsuite/libstdc++-prettyprinters/cxx11.cc: Update expected output
4150         of unique_ptr printer.
4151         * testsuite/libstdc++-prettyprinters/shared_ptr.cc: Update expected
4152         output of shared_ptr printer.
4153
4154 2018-01-05  Jonathan Wakely  <jwakely@redhat.com>
4155
4156         PR libstdc++/83626
4157         * src/filesystem/ops.cc (remove(const path&, error_code&)): Remove
4158         unnecessary symlink_status call.
4159         (remove_all(const path&, error_code&)): Use filesystem::remove.
4160         * src/filesystem/std-ops.cc: Likewise.
4161
4162         PR libstdc++/83279
4163         * src/filesystem/std-ops.cc  (do_copy_file): Use non-null offset with
4164         sendfile.
4165
4166         PR libstdc++/83626
4167         * src/filesystem/ops.cc (remove(const path&, error_code&)): Do not
4168         report an error for ENOENT.
4169         (remove_all(const path&)): Fix type of result variable.
4170         (remove_all(const path&, error_code&)): Use non-throwing increment
4171         for directory iterator. Call POSIX remove directly to avoid redundant
4172         calls to symlink_status. Do not report errors for ENOENT.
4173         * src/filesystem/std-ops.cc: Likewise.
4174         * testsuite/27_io/filesystem/operations/remove_all.cc: Test throwing
4175         overload.
4176         * testsuite/experimental/filesystem/operations/remove_all.cc:
4177         Likewise.
4178
4179 2018-01-04  Jonathan Wakely  <jwakely@redhat.com>
4180
4181         PR libstdc++/83626
4182         * src/filesystem/ops.cc (remove(const path&, error_code&))): Remove
4183         redundant call to ec.clear().
4184         (remove_all(const path&, error_code&))): Do not return an error for
4185         non-existent paths.
4186         * src/filesystem/std-ops.cc: Likewise.
4187         * testsuite/27_io/filesystem/operations/remove.cc: New test.
4188         * testsuite/27_io/filesystem/operations/remove_all.cc: Fix expected
4189         results for non-existent paths.
4190         * testsuite/experimental/filesystem/operations/remove.cc: New test.
4191         * testsuite/experimental/filesystem/operations/remove_all.cc: Fix
4192         expected results for non-existent paths.
4193
4194         * include/bits/fs_ops.h (exists(const path&, error_code&))): Only
4195         check status_known once.
4196         * include/experimental/bits/fs_ops.h: Likewise.
4197
4198         PR libstdc++/83607
4199         * include/std/functional (__is_byte_like): New trait.
4200         (__is_std_equal_to): Remove.
4201         (__boyer_moore_base_t): Use __is_byte_like instead of
4202         __is_std_equal_to.
4203         * include/experimental/functional (__is_std_equal_to): Remove.
4204         (__boyer_moore_base_t): Use __is_byte_like instead of
4205         __is_std_equal_to.
4206         * testsuite/20_util/function_objects/83607.cc: New test.
4207
4208 2018-01-03  Ville Voutilainen  <ville.voutilainen@gmail.com>
4209
4210         Protect optional's deduction guide with the feature macro
4211         * include/std/optional: Use the feature macro.
4212
4213 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
4214
4215         Update copyright years.
4216 \f
4217 Copyright (C) 2018 Free Software Foundation, Inc.
4218
4219 Copying and distribution of this file, with or without modification,
4220 are permitted in any medium without royalty provided the copyright
4221 notice and this notice are preserved.