libstdc++-v3/ChangeLog

   1 2018-09-29  Gerald Pfeifer  <gerald@pfeifer.com>
   2
   3         * doc/xml/gnu/fdl-1.3.xml: The Free Software Foundation web
   4         site now uses https. Also omit the unnecessary trailing slash.
   5         * doc/xml/gnu/gpl-3.0.xml: Ditto.
   6
   7 2018-09-28  François Dumont  <fdumont@gcc.gnu.org>
   8
   9         * include/debug/functions.h
  10         (__foreign_iterator_aux3(const _Safe_iterator<>&, const _InputeIter&,
  11         const _InputIter&, __true_type)): Use empty() rather than begin() ==
  12         end().
  13
  14 2018-09-25  Mike Crowe  <mac@mcrowe.com>
  15
  16         * include/std/condition_variable (condition_variable::wait_for): Use
  17         steady clock in overload that uses a predicate.
  18
  19 2018-09-25  Jonathan Wakely  <jwakely@redhat.com>
  20
  21         PR libstdc++/87431
  22         * include/std/variant (_Variant_storage<true, _Types...>::_M_valid):
  23         Avoid runtime test when all alternatives are scalars and so cannot
  24         throw during initialization.
  25
  26 2018-09-25  Gerald Pfeifer  <gerald@pfeifer.com>
  27
  28         * doc/xml/manual/codecvt.xml: Move link to "UTF-8 and Unicode FAQ"
  29         to https.
  30
  31 2018-09-24  Gerald Pfeifer  <gerald@pfeifer.com>
  32
  33         * doc/xml/manual/policy_data_structures_biblio.xml: Update link
  34         to "Priority Queues and the STL".
  35
  36 2018-09-23  Gerald Pfeifer  <gerald@pfeifer.com>
  37
  38         * doc/xml/manual/using_exceptions.xml: Move boost.orgs link to
  39         https.
  40
  41 2018-09-21  François Dumont  <fdumont@gcc.gnu.org>
  42
  43         PR libstdc++/87135
  44         * src/c++11/hashtable_c++0x.cc (_Prime_rehash_policy::_M_next_bkt):
  45         Use __builtin_floor to compute _M_next_resize.
  46         * testsuite/23_containers/unordered_set/hash_policy/71181.cc: Adapt.
  47         * testsuite/23_containers/unordered_set/hash_policy/prime_rehash.cc:
  48         Adapt.
  49
  50 2018-09-21  Jonathan Wakely  <jwakely@redhat.com>
  51
  52         * testsuite/26_numerics/headers/cmath/hypot-long-double.cc: Remove.
  53         * testsuite/26_numerics/headers/cmath/hypot.cc: Restore test for
  54         long double unconditionally, but use lower tolerance when
  55         sizeof(long double) == sizeof(double).
  56
  57 2018-09-20  Christophe Lyon  <christophe.lyon@linaro.org>
  58
  59         * testsuite/26_numerics/headers/cmath/hypot-long-double.cc: Skip
  60         on arm*.
  61
  62 2018-09-19  Jonathan Wakely  <jwakely@redhat.com>
  63
  64         * include/bits/regex_automaton.tcc (_StateSeq<_TraitsT>::_M_clone()):
  65         Remove __glibcxx_assert statements and use map::find instead of
  66         map::operator[].
  67
  68 2018-09-18  François Dumont  <fdumont@gcc.gnu.org>
  69
  70         PR libstdc++/87135
  71         * src/c++11/hashtable_c++0x.cc:
  72         (_Prime_rehash_policy::_M_next_bkt): Return a prime no smaller than
  73         requested size, but not necessarily greater.
  74         (_Prime_rehash_policy::_M_need_rehash): Rehash only if target size is
  75         strictly greater than next resize threshold.
  76         * testsuite/23_containers/unordered_map/modifiers/reserve.cc: Adapt test
  77         to validate that there is no rehash as long as number of insertion is
  78         lower or equal to the reserved number of elements.
  79
  80 2018-09-18  Jonathan Wakely  <jwakely@redhat.com>
  81
  82         * include/bits/unique_ptr.h (__uniq_ptr_impl): Remove static assertion
  83         checking invocable condition.
  84         (unique_ptr::~unique_ptr, unique_ptr::reset): Restore static assertion
  85         here, where types must be complete. Pass pointer to deleter as an
  86         rvalue.
  87         * testsuite/20_util/unique_ptr/requirements/incomplete.cc: New test.
  88
  89 2018-09-13  Jonathan Wakely  <jwakely@redhat.com>
  90
  91         * include/std/variant (variant) [__clang__]: Limit workaround to
  92         Clang 7 and older.
  93
  94 2018-09-11  Jonathan Wakely  <jwakely@redhat.com>
  95
  96         PR libstdc++/87278
  97         * include/bits/shared_ptr.h (make_shared): Use remove_cv instead of
  98         remove_const.
  99         * testsuite/20_util/shared_ptr/creation/87278.cc: New test.
 100
 101         Implement LWG 2905 changes to constrain unique_ptr constructors
 102         * include/bits/unique_ptr.h (__uniq_ptr_impl): Add assertions to
 103         check deleter type.
 104         (unique_ptr::unique_ptr(pointer, const deleter_type&)): Add copy
 105         constructible constraint.
 106         (unique_ptr::unique_ptr(pointer, deleter_type&&)): Disable for
 107         deleters of reference type and add move constructible constraint.
 108         (unique_ptr::unique_ptr(pointer, remove_reference_t<deleter_type>&&)):
 109         Disable for deleters of non-reference type. Define as deleted.
 110         (unique_ptr<T[], D>): Likewise.
 111         * testsuite/20_util/unique_ptr/assign/48635_neg.cc: Replace dg-error
 112         directives with unstable line numbers with dg-prune-output.
 113         * testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: Likewise.
 114         * testsuite/20_util/unique_ptr/cons/lwg2905.cc: New test.
 115         * testsuite/20_util/unique_ptr/specialized_algorithms/swap_cxx17.cc:
 116         Make deleter types invocable.
 117
 118 2018-09-05  Jonathan Wakely  <jwakely@redhat.com>
 119
 120         * libsupc++/cxxabi.h (__cxa_demangle): Clarify doxygen comment.
 121
 122 2018-09-03  Jonathan Wakely  <jwakely@redhat.com>
 123
 124         PR libstdc++/78179
 125         * testsuite/26_numerics/headers/cmath/hypot-long-double.cc: New test
 126         that runs the long double part of hypot.cc.
 127         * testsuite/26_numerics/headers/cmath/hypot.cc: Disable long double
 128         tests unless TEST_HYPOT_LONG_DOUBLE is defined.
 129
 130         * include/bits/stl_vector.h (vector::_Temporary_value::_M_ptr):
 131         Return raw pointer not allocator's pointer type.
 132         (vector::_Temporary_value::_M_val): Use _M_ptr.
 133
 134         PR libstdc++/87194
 135         * include/bits/stl_map.h
 136         (map::map(initializer_list<value_type>, const Compare&, const Alloc&))
 137         (map::map(initializer_list<value_type>, const Alloc&))
 138         (map::map(InputIterator, InputIterator, const Alloc&))
 139         (map::map(InputIterator, InputIterator))
 140         (map::map(InputIterator, InputIterator, const Compare&, const Alloc&))
 141         (map::insert(InputIterator, InputIterator)):
 142         Call _M_insert_range_unique instead of _M_insert_unique.
 143         * include/bits/stl_multimap.h
 144         (multimap::multimap(initializer_list<value_type>, const C&, const A&))
 145         (multimap::multimap(initializer_list<value_type>, const A&))
 146         (multimap::multimap(InputIterator, InputIterator, const A&))
 147         (multimap::multimap(InputIterator, InputIterator))
 148         (multimap::multimap(InputIterator, InputIterator, const C&, const A&))
 149         (multimap::insert(InputIterator, InputIterator)): Call
 150         _M_insert_range_equal instead of _M_insert_equal.
 151         * include/bits/stl_multiset.h
 152         (multiset::multiset(InputIterator, InputIterator))
 153         (multiset::multiset(InputIterator, InputIterator, const C&, const A&))
 154         (multiset::multiset(initializer_list<value_type>, const C&, const A&))
 155         (multiset::multiset(initializer_list<value_type>, const A&))
 156         (multiset::multiset(InputIterator, InputIterator, const A&))
 157         (multiset::insert(InputIterator, InputIterator)): Call
 158         _M_insert_range_equal instead of _M_insert_equal.
 159         * include/bits/stl_set.h
 160         (set::set(InputIterator, InputIterator))
 161         (set::set(InputIterator, InputIterator, const Compare&, const Alloc&))
 162         (set::set(initializer_list<value_type>, const Compare&, const Alloc&))
 163         (set::set(initializer_list<value_type>, const Alloc&))
 164         (set::set(InputIterator, InputIterator, const Alloc&))
 165         (set::insert(InputIterator, InputIterator)):
 166         Call _M_insert_range_unique instead of _M_insert_unique.
 167         * include/bits/stl_tree.h
 168         [__cplusplus >= 201103L] (_Rb_tree::__same_value_type): New alias
 169         template for SFINAE constraints.
 170         [__cplusplus >= 201103L] (_Rb_tree::_M_insert_range_unique): Pair of
 171         constrained overloads that either insert or emplace, depending on
 172         iterator's value_type.
 173         [__cplusplus >= 201103L] (_Rb_tree::_M_insert_range_equal): Likewise.
 174         [__cplusplus < 201103L] (_Rb_tree::_M_insert_range_unique)
 175         (_Rb_tree::_M_insert_range_equal): New functions replacing range
 176         versions of _M_insert_unique and _M_insert_equal.
 177         (_Rb_tree::_M_insert_unique(_InputIterator, _InputIterator))
 178         (_Rb_tree::_M_insert_equal(_InputIterator, _InputIterator)): Remove.
 179         * testsuite/23_containers/map/modifiers/insert/87194.cc: New test.
 180         * testsuite/23_containers/multimap/modifiers/insert/87194.cc: New test.
 181         * testsuite/23_containers/multiset/modifiers/insert/87194.cc: New test.
 182         * testsuite/23_containers/set/modifiers/insert/87194.cc: New test.
 183
 184         PR libstdc++/78595
 185         * include/bits/stl_map.h (map::insert(_Pair&&))
 186         (map::insert(const_iterator, _Pair&&)): Do emplace instead of insert.
 187         * include/bits/stl_multimap.h (multimap::insert(_Pair&&))
 188         (multimap::insert(const_iterator, _Pair&&)): Likewise.
 189         * include/bits/unordered_map.h (unordered_map::insert(_Pair&&))
 190         (unordered_map::insert(const_iterator, _Pair&&))
 191         (unordered_multimap::insert(_Pair&&))
 192         (unordered_multimap::insert(const_iterator, _Pair&&)): Likewise.
 193         * testsuite/23_containers/map/modifiers/insert/78595.cc: New test.
 194         * testsuite/23_containers/multimap/modifiers/insert/78595.cc: New test.
 195         * testsuite/23_containers/unordered_map/modifiers/78595.cc: New test.
 196         * testsuite/23_containers/unordered_multimap/modifiers/78595.cc: New
 197         test.
 198
 199 2018-09-02  François Dumont  <fdumont@gcc.gnu.org>
 200
 201         * include/debug/safe_iterator.h
 202         (_Safe_iterator<_It, _Seq, _Cat>::_Self): New.
 203         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>::_Self):
 204         New.
 205         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
 206         ::_OtherSelf): New.
 207         (_GLIBCXX_DEBUG_VERIFY_OPERANDS, _GLIBCXX_DEBUG_VERIFY_EQ_OPERANDS)
 208         (_GLIBCXX_DEBUG_VERIFY_REL_OPERANDS)
 209         (_GLIBCXX_DEBUG_VERIFY_DIST_OPERANDS): Define macros.
 210         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
 211         ::operator+(difference_type)): Use latters, inline as friend.
 212         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
 213         ::operator-(difference_type)): Likewise.
 214         (operator==(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 215         Likewise.
 216         (operator!=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 217         Likewise.
 218         (operator<(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
 219         (operator<=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 220         Likewise.
 221         (operator>(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
 222         (operator>=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 223         Likewise.
 224         (operator-(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
 225         (operator+(difference_type, const _Safe_iterator<>&)): Likewise.
 226         (operator-(const _Safe_iterator<>&, difference_type)): Likewise.
 227         * include/debug/safe_iterator.tcc
 228         (_Safe_iterator<>::_M_can_advance(difference_type)): Take parameter by
 229         copy.
 230         * include/debug/safe_local_iterator.h
 231         (_Safe_local_iterator<_It, _Seq>::_Self): New.
 232         (_Safe_local_iterator<_It, _Seq>::_OtherSelf): New.
 233         (_GLIBCXX_DEBUG_VERIFY_OPERANDS): Define macro.
 234         (operator==(const _Safe_local_iterator<>&,
 235         const _Safe_local_iterator<>&)): Use latter, inline as friend.
 236         (operator!=(const _Safe_local_iterator<>&,
 237         const _Safe_local_iterator<>&)): Likewise.
 238         * testsuite/util/testsuite_containers.h: Include utility.
 239         (struct forward_members_unordered<_Tp, bool>): Remove 2nd template
 240         parameter.
 241         (forward_members_unordered<>::forward_members_unordered(value_type&)):
 242         Add using namespace std::rel_ops.
 243         Add iterator_concept_checks on local_iterator and const_local_iterator.
 244         Add asserts on comparison between const_local_iterator and
 245         local_iterator.
 246         (struct forward_members_unordered<_Tp, false>): Remove partial
 247         specialization.
 248         * testsuite/23_containers/forward_list/types/1.cc: New.
 249         * testsuite/23_containers/list/types/1.cc: New.
 250
 251 2018-09-01  Gerald Pfeifer  <gerald@pfeifer.com>
 252
 253         * doc/xml/manual/profile_mode.xml: Update three ieeexplore.ieee.org
 254         references.
 255
 256 2018-08-31  Sandra Loosemore  <sandra@codesourcery.com>
 257
 258         * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/10.cc:
 259         Add dg-require-fileio.
 260         * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc:
 261         Likewise.
 262         * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc:
 263         Likewise.
 264         * testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc:
 265         Likewise.
 266         * testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc:
 267         Likewise.
 268         * testsuite/25_algorithms/find/istreambuf_iterators/wchar_t/2.cc:
 269         Likewise.
 270         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-1.cc: Likewise.
 271         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-2.cc: Likewise.
 272         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc: Likewise.
 273         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-4.cc: Likewise.
 274         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/11543.cc: Likewise.
 275         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-1.cc:
 276         Likewise.
 277         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-2.cc:
 278         Likewise.
 279         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-3.cc:
 280         Likewise.
 281         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-4.cc:
 282         Likewise.
 283         * testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-1.cc:
 284         Likewise.
 285         * testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-2.cc:
 286         Likewise.
 287         * testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-4.cc:
 288         Likewise.
 289         * testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc: Likewise.
 290         * testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc: Likewise.
 291         * testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: Likewise.
 292         * testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: Likewise.
 293         * testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc:
 294         Likewise.
 295         * testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc:
 296         Likewise.
 297         * testsuite/27_io/basic_istream/get/wchar_t/2.cc: Likewise.
 298         * testsuite/27_io/basic_istream/getline/wchar_t/5.cc: Likewise.
 299         * testsuite/27_io/basic_istream/ignore/wchar_t/2.cc: Likewise.
 300         * testsuite/27_io/basic_istream/ignore/wchar_t/3.cc: Likewise.
 301         * testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc: Likewise.
 302         * testsuite/27_io/basic_istream/tellg/wchar_t/sstream.cc: Likewise.
 303         * testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: Likewise.
 304         * testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: Likewise.
 305         * testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc:
 306         Likewise.
 307         * testsuite/27_io/objects/wchar_t/10.cc: Likewise.
 308         * testsuite/27_io/objects/wchar_t/12048-1.cc: Likewise.
 309         * testsuite/27_io/objects/wchar_t/12048-2.cc: Likewise.
 310         * testsuite/27_io/objects/wchar_t/12048-3.cc: Likewise.
 311         * testsuite/27_io/objects/wchar_t/12048-4.cc: Likewise.
 312         * testsuite/27_io/objects/wchar_t/12048-5.cc: Likewise.
 313         * testsuite/experimental/string_view/inserters/wchar_t/2.cc:
 314         Likewise.
 315         * testsuite/ext/stdio_sync_filebuf/wchar_t/1.cc: Likewise.
 316
 317 2018-08-30  Sandra Loosemore  <sandra@codesourcery.com>
 318
 319         * testsuite/experimental/propagate_const/observers/1.cc: Make
 320         dependence on -fdelete-null-pointer-checks explicit.
 321
 322 2018-08-30  Jonathan Wakely  <jwakely@redhat.com>
 323
 324         * include/bits/hashtable_policy.h (__clp2): Fix calculation for LLP64
 325         targets where sizeof(size_t) > sizeof(long). Avoid undefined shifts
 326         of the number of bits in the type.
 327         * include/std/bit (__ceil2): Avoid undefined shifts.
 328         * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Test values with
 329         the most signifiant bit set.
 330
 331         * config/abi/pre/gnu.ver: Add missing exports for mingw.
 332
 333         * include/ext/pointer.h (_Pointer_adapter): Define operators for
 334         pointer arithmetic using long long offsets.
 335         * testsuite/ext/ext_pointer/1.cc: Test pointer arithmetic using
 336         long long values.
 337
 338 2018-08-29  Jonathan Wakely  <jwakely@redhat.com>
 339
 340         PR libstdc++/31413
 341         * testsuite/22_locale/time_get/get_date/wchar_t/4.cc: Check D_FMT
 342         string for alternative format.
 343
 344 2018-08-28  Jonathan Wakely  <jwakely@redhat.com>
 345
 346         PR libstdc++/87116
 347         * src/filesystem/std-path.cc (path::lexically_normal): When handling
 348         a dot-dot filename, preserve an empty final component in the iteration
 349         sequence.
 350         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use preferred-separator for
 351         root-directory.
 352         * testsuite/27_io/filesystem/path/generation/normal.cc: Add new tests
 353         for more than two adjacent dot-dot filenames.
 354         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Replace slashes with
 355         preferred-separator in expected normalized strings.
 356
 357 2018-08-25  Iain Sandoe  <iain@sandoe.co.uk>
 358
 359         PR libstdc++/70694
 360         * configure.host (OPT_LDFLAGS): Don't append
 361         -fvisibility-inlines-hidden for newer Darwin.
 362
 363 2018-08-24  Marc Glisse  <marc.glisse@inria.fr>
 364
 365         PR libstdc++/86822
 366         * libsupc++/new (operator new(size_t, nothrow_t), operator
 367         new[](size_t, nothrow_t), operator new(size_t, align_val_t, nothrow_t),
 368         operator new[](size_t, align_val_t, nothrow_t)): Add malloc attribute.
 369
 370 2018-08-24  Jonathan Wakely  <jwakely@redhat.com>
 371
 372         * include/debug/deque (std::__debug::deque): Declare.
 373         * include/debug/forward_list (std::__debug::forward_list): Declare.
 374         * include/debug/list (std::__debug::list): Declare.
 375         * include/debug/map (std::__debug::map): Declare.
 376         * include/debug/set (std::__debug::set): Declare.
 377         * include/debug/unordered_map (std::__debug::unordered_map): Declare.
 378         * include/debug/unordered_set (std::__debug::unordered_set): Declare.
 379         * include/debug/vector (std::__debug::vector): Declare.
 380         * testsuite/23_containers/deque/types/pmr_typedefs_debug.cc: New test.
 381         * testsuite/23_containers/forward_list/pmr_typedefs_debug.cc: New
 382         test.
 383         * testsuite/23_containers/list/pmr_typedefs_debug.cc: New test.
 384         * testsuite/23_containers/map/pmr_typedefs_debug.cc: New test.
 385         * testsuite/23_containers/multimap/pmr_typedefs_debug.cc: New test.
 386         * testsuite/23_containers/multiset/pmr_typedefs_debug.cc: New test.
 387         * testsuite/23_containers/set/pmr_typedefs_debug.cc: New test.
 388         * testsuite/23_containers/unordered_map/pmr_typedefs_debug.cc: New
 389         test.
 390         * testsuite/23_containers/unordered_multimap/pmr_typedefs_debug.cc:
 391         New test.
 392         * testsuite/23_containers/unordered_multiset/pmr_typedefs_debug.cc:
 393         New test.
 394         * testsuite/23_containers/unordered_set/pmr_typedefs_debug.cc: New
 395         test.
 396         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
 397         Adjust dg-error lineno.
 398         * testsuite/23_containers/vector/types/pmr_typedefs_debug.cc: New
 399         test.
 400
 401 2018-08-23  Jonathan Wakely  <jwakely@redhat.com>
 402
 403         * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
 404         Only define when RTTI is enabled.
 405
 406         * include/debug/vector (__niter_base): Define for C++98.
 407
 408         * testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc:
 409         Fix C++98 test to not use C++11 features.
 410         * testsuite/25_algorithms/fill_n/2.cc: Likewise.
 411
 412         * scripts/check_compile: Fix comments.
 413
 414         * include/debug/string (insert(__const_iterator, _InIter, _InIter)):
 415         [!_GLIBCXX_USE_CXX11_ABI]: Replace use of C++11-only cbegin() with
 416         begin(), for C++98 compatibility.
 417
 418         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
 419         (basic_string::__const_iterator): Change access to protected.
 420         [!_GLIBCXX_USE_CXX11_ABI] (basic_string::__const_iterator): Define
 421         as typedef for iterator.
 422         * include/debug/string (__const_iterator): Use typedef from base.
 423         (insert(const_iterator, _CharT))
 424         (replace(const_iterator, const_iterator, const basic_string&))
 425         (replace(const_iterator, const_iterator, const _CharT*, size_type))
 426         (replace(const_iterator, const_iterator, const CharT*))
 427         (replace(const_iterator, const_iterator, size_type, _CharT))
 428         (replace(const_iterator, const_iterator, _InputIter, _InputIter))
 429         (replace(const_iterator, const_iterator, initializer_list<_CharT>)):
 430         Change const_iterator parameters to __const_iterator.
 431         (insert(iterator, size_type, _CharT)): Add C++98 overload.
 432         (insert(const_iterator, _InputIterator, _InputIterator)): Change
 433         const_iterator parameter to __const_iterator.
 434         [!_GLIBCXX_USE_CXX11_ABI]: Add workaround for incorrect return type
 435         of base's member function.
 436         (insert(const_iterator, size_type, _CharT)) [!_GLIBCXX_USE_CXX11_ABI]:
 437         Likewise.
 438         (insert(const_iterator, initializer_list<_CharT>))
 439         [!_GLIBCXX_USE_CXX11_ABI]: Likewise.
 440         * testsuite/21_strings/basic_string/init-list.cc: Remove effective
 441         target directive.
 442
 443         * testsuite/20_util/reference_wrapper/lwg2993.cc: Fix C++11 test to
 444         not use C++14 feature.
 445         * testsuite/23_containers/list/68222_neg.cc: Likewise.
 446
 447         * testsuite/21_strings/basic_string/init-list.cc:
 448         Require cxx11-abi.
 449         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
 450         Likewise.
 451         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
 452         Likewise.
 453
 454         * testsuite/23_containers/deque/capacity/max_size.cc: Fix test for
 455         C++98 mode.
 456         * testsuite/23_containers/deque/modifiers/assign/1.cc: Likewise.
 457         * testsuite/23_containers/list/modifiers/assign/1.cc: Likewise.
 458         * testsuite/23_containers/vector/bool/modifiers/assign/1.cc: Likewise.
 459         * testsuite/23_containers/vector/capacity/max_size.cc: Likewise.
 460         * testsuite/23_containers/vector/modifiers/assign/1.cc: Likewise.
 461
 462 2018-08-22  Jonathan Wakely  <jwakely@redhat.com>
 463
 464         PR libstdc++/87061
 465         * include/experimental/regex [!_GLIBCXX_USE_CXX11_ABI]
 466         (experimental::pmr::match_results, experimental::pmr::cmatch)
 467         (experimental::pmr::smatch, experimental::pmr::wcmatch)
 468         (experimental::pmr::wsmatch): Do not declare for gcc4-compatible ABI,
 469         because COW strings don't support C++11 allocator model.
 470         * include/experimental/string [!_GLIBCXX_USE_CXX11_ABI]
 471         (experimental::pmr::basic_string, experimental::pmr::string)
 472         (experimental::pmr::u16string, experimental::pmr::u32string)
 473         (experimental::pmr::wstring): Likewise.
 474         * include/std/regex [!_GLIBCXX_USE_CXX11_ABI] (pmr::match_results)
 475         (pmr::cmatch, pmr::smatch, pmr::wcmatch, pmr::wsmatch): Likewise.
 476         * include/std/string [!_GLIBCXX_USE_CXX11_ABI] (pmr::basic_string)
 477         (pmr::string, pmr::u16string, pmr::u32string, pmr::wstring): Likewise.
 478         * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Require
 479         cxx11-abi.
 480         * testsuite/28_regex/match_results/pmr_typedefs.cc: Likewise.
 481
 482         PR libstdc++/78448
 483         * include/bits/deque.tcc (deque::_M_range_initialize): Use
 484         _S_check_init_len to check size.
 485         (deque::_M_push_back_aux, deque::_M_push_front_aux): Throw length
 486         error if size would exceed max_size().
 487         * include/bits/stl_deque.h (_Deque_base::size_type): Remove typedef.
 488         (_Deque_base(_Deque_base&&, const allocator_type&, size_t)): Use
 489         size_t instead of size_type.
 490         (deq(size_type, const allocator_type&)
 491         (deq(size_type, const value_type&, const allocator_type&)
 492         (deque::_M_initialize_dispatch): Use _S_check_init_len to check size.
 493         (deque::max_size): Call _S_max_size.
 494         (deque::_S_check_init_len, deque::_S_max_size): New functions.
 495         * include/bits/stl_vector.h (vector(size_type, const allocator_type&))
 496         (vector(size_type, const value_type&, const allocator_type&))
 497         (vector::_M_initialize_dispatch, vector::_M_range_initialize): Use
 498         _S_check_init_len to check size.
 499         (vector::max_size): Call _S_max_size.
 500         (vector::_M_check_len): Prevent max from being expanded as a
 501         function-like macro.
 502         (vector::_S_check_init_len, vector::_S_max_size): New functions.
 503         * include/bits/vector.tcc (vector::_M_assign_aux): Use
 504         _S_check_init_len to check size.
 505         * testsuite/23_containers/deque/capacity/max_size.cc: New test.
 506         * testsuite/23_containers/vector/capacity/max_size.cc: New test.
 507
 508 2018-08-22  François Dumont  <fdumont@gcc.gnu.org>
 509
 510         PR libstdc++/68222
 511         * include/debug/safe_iterator.h
 512         (_Safe_iterator<_It, _Sq, _Cat>): Add category template parameter.
 513         (_Safe_iterator<>::_Const_iterator): Remove.
 514         (_Safe_iterator<>::_IsConstant): New.
 515         (_Safe_iterator<>::_OtherIterator): New.
 516         (_Safe_iterator<_It, _Sq, _Cat>::_Safe_iterator<_MutIte>(
 517         const _Safe_iterator<_MutIte, _Sq, _Cat>&)): Add _IsConstant::__value in
 518         __gnu_cxx::__enable_if condition.
 519         (_Safe_iterator<_It, _Sq, _Cat>::_M_get_distance_to): New.
 520         (_Safe_iterator<_It, _Sq, _Cat>::_M_get_distance_from_begin): New.
 521         (_Safe_iterator<_It, _Sq, _Cat>::_M_get_distance_to_end): New.
 522         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>): New.
 523         (_Safe_iterator<_It, _Sq, _Cat>::operator--()): Move...
 524         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>
 525         ::operator--()): ...here.
 526         (_Safe_iterator<_It, _Sq, _Cat>::operator--(int)): Move...
 527         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>
 528         ::operator--(int)): ...here.
 529         (_Safe_iterator<_It, _Sq, _Cat>::_M_decrementable()): Move...
 530         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>
 531         ::_M_decrementable()): ...here.
 532         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>): New.
 533         (_Safe_iterator<_It, _Sq, _Cat>::operator[](const difference_type&)):
 534         Move...
 535         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
 536         ::operator[](const difference_type&)): ...here.
 537         (_Safe_iterator<_It, _Sq, _Cat>::operator+=(const difference_type&)):
 538         Move...
 539         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
 540         ::operator+=(const difference_type&)): ...here.
 541         (_Safe_iterator<_It, _Sq, _Cat>::operator+(const difference_type&)):
 542         Move...
 543         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
 544         ::operator+(const difference_type&)): ...here.
 545         (_Safe_iterator<_It, _Sq, _Cat>::operator-=(const difference_type&)):
 546         Move...
 547         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
 548         ::operator-=(const difference_type&)): ...here.
 549         (_Safe_iterator<_It, _Sq, _Cat>::operator-(const difference_type&)):
 550         Move...
 551         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
 552         ::operator-(const difference_type&)): ...here.
 553         (operator<(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 554         Constraint to random access iterators.
 555         (operator<=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 556         Likewise.
 557         (operator>(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
 558         (operator>=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 559         Likewise.
 560         (operator-(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
 561         (operator+(const difference_type&, const _Safe_iterator<>&)): Likewise.
 562         (__check_dereferenceable(const _Safe_iterator<>&)): Remove.
 563         (__get_distance): Remove.
 564         (__get_distance_from_begin): Remove.
 565         (__get_distance_to_end): Remove.
 566         (struct __is_safe_random_iterator<_Safe_iterator<>>): Remove partial
 567         specialization.
 568         (__base(const _Safe_iterator<>&, std::input_iterator_tag)): Remove.
 569         (__base(const _Safe_iterator<>&, std::random_access_iterator_tag)): Remove.
 570         (__base(const _Safe_iterator<>&)): Constraint to random access iterator.
 571         * include/debug/safe_iterator.tcc
 572         (_Safe_iterator<>::_M_get_distance_from_begin()): New.
 573         (_Safe_iterator<>::_M_get_distance_to_end()): New.
 574         (_Safe_iterator<>::_M_get_distance_to(const _Safe_iterator<>&)): New.
 575         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
 576         ::_M_valid_range): New.
 577         * include/debug/safe_local_iterator.h
 578         (_Safe_local_iterator<>::_Const_local_iterator): Remove.
 579         (_Safe_local_iterator<>::_IsConstant): New.
 580         (_Safe_local_iterator<>::_OtherIterator): New.
 581         (_Safe_local_iterator<_It, _Cont>::_Safe_local_iterator<_MutIte, _Cont>(
 582         const _Safe_local_iterator<_MutIte, _Seq>&)): Add _IsConstant::__value
 583         in __gnu_cxx::__enable_if condition. If singular compare base iterator
 584         with _MutIte rather than _It.
 585         (_Safe_local_iterator<>::_S_constant): Make constexpr.
 586         (_Safe_local_iterator<>::_M_get_distance_to): New.
 587         (__check_dereferenceable(const _Safe_local_iterator<>&)): Remove.
 588         (__get_distance(const _Safe_local_iterator<>&,
 589         const _Safe_local_iterator<>&, std::input_iterator_tag)): Remove.
 590         (__valid_range(const _Safe_local_iterator<>&,
 591         const _Safe_local_iterator<>&)): New.
 592         * include/debug/safe_local_iterator.tcc
 593         (_Safe_local_iterator<>::_M_get_distance_to): New.
 594         * include/debug/deque (std::__debug::deque<>): Add
 595         ::__gnu_debug::_Safe_iterator<> friend declaration.
 596         * include/debug/forward_list (std::__debug::forward_list<>): Likewise.
 597         * include/debug/list (std::__debug::list<>): Likewise.
 598         * include/debug/map.h (std::__debug::map<>): Likewise.
 599         * include/debug/multimap.h (std::__debug::multimap<>): Likewise.
 600         * include/debug/set.h (std::__debug::set<>): Likewise.
 601         * include/debug/multiset.h (std::__debug::multiset<>): Likewise.
 602         * include/debug/string (std::__debug::basic_string<>): Likewise.
 603         * include/debug/unordered_map (std::__debug::unordered_map<>): Likewise
 604         and add ::__gnu_debug::_Safe_local_iterator<> friend declaration.
 605         (std::__debug::unordered_multimap<>): Likewise.
 606         * include/debug/unordered_set (std::__debug::unordered_set<>): Likewise.
 607         (std::__debug::unordered_multiset<>): Likewise.
 608         * include/debug/formatter.h: Adapt.
 609         * include/debug/helper_functions.h
 610         (__gnu_debug::_Safe_local_iterator<>): Add declaration.
 611         (__get_distance<_Ite>(_Ite, _Ite, std::random_access_iterator_tag):
 612         Pass parameter by copy.
 613         (__get_distance<_Ite>(_Ite, _Ite, std::input_iterator_tag): Likewise.
 614         (__get_distance<_Ite>(_Ite, _Ite): Likewise.
 615         (__valid_range_aux<_Integral>): Pass _Integral by copy.
 616         (__valid_range<_InputIterator>): Pass _InputIterator by copy.
 617         (__valid_range<>(const _Safe_iterator<>&,
 618         const _Safe_iterator<>&, typename _Distance_traits<>::__type&)):
 619         Declare.
 620         (__valid_range(const _Safe_local_iterator<>&,
 621         const _Safe_local_iterator<>&, typename _Distance_traits<>::__type&)):
 622         Declare.
 623         (__valid_range<>(const _Safe_iterator<>&, const _Safe_iterator<>&)):
 624         Declare.
 625         (__valid_range(const _Safe_local_iterator<>&, const _Safe_local_iterator<>&)):
 626         Declare.
 627         (__can_advance): Adapt.
 628         (struct __is_safe_random_iterator<>): Remove.
 629         (struct _SIter_base<>): Remove.
 630         * include/debug/functions.h: Include <bits/stl_iterator.h>.
 631         (__check_dereferenceable): Remove.
 632         (__foreign_iterator_aux4, __foreign_iterator_aux3): Adapt.
 633         (__foreign_iterator_aux2, __foreign_iterator_aux): Adapt.
 634         (__foreign_iterator): Adapt.
 635         * include/debug/stl_iterator.h
 636         (__is_safe_random_iterator<std::reverse_iterator<>>): Remove.
 637         (__base(const std::reverse_iterator<_Safe_iterator<_It, _Sq>)):
 638         Constraint for random access iterators.
 639         (__niter_base): Adapt.
 640         * testsuite/util/testsuite_containers.h:
 641         Include <bits/boost_concept_check.h>.
 642         (iterator_concept_checks<_It, _Mutable, _Category>): New.
 643         (citerator<_Cont>::forward_members::forward_members()): Instantiate
 644         latter for container iterator and const_iterator.
 645         * testsuite/23_containers/list/68222_neg.cc: New.
 646         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc: Adapt
 647         line number.
 648         * testsuite/23_containers/unordered_set/debug/debug_functions.cc:
 649         (test01): Remove.
 650         * testsuite/23_containers/vector/debug/debug_functions.cc (test01):
 651         Remove.
 652
 653 2018-08-22  Jonathan Wakely  <jwakely@redhat.com>
 654
 655         PR libstdc++/77854
 656         * doc/xml/manual/status_cxx1998.xml: Document size_type and
 657         difference_type for containers.
 658         * doc/html/*: Regenerate.
 659
 660 2018-08-21  François Dumont  <fdumont@gcc.gnu.org>
 661
 662         P0646R1 Improving the Return Value of Erase-Like Algorithms I
 663         * include/debug/forward_list (forward_list::__remove_return_type):
 664         Define typedef as size_type or void, according to __cplusplus value.
 665         (_GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
 666         empty, according to __cplusplus value.
 667         (_GLIBCXX20_ONLY): Define macro.
 668         (forward_list::remove, forward_list::unique): Use typedef and macro
 669         to change return type and add abi-tag for C++2a. Return number of
 670         removed elements for C++2a.
 671         (forward_list::remove_if<Pred>, forward_list::unique<BinPred>): Use
 672         typedef to change return type for C++2a. Return number of removed
 673         elements for C++2a.
 674         * include/debug/list (list::__remove_return_type): Define typedef as
 675         size_type or void, according to __cplusplus value.
 676         (_GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
 677         empty, according to __cplusplus value.
 678         (_GLIBCXX20_ONLY): Define macro.
 679         (list::remove, list::unique): Use typedef and macro to change return
 680         type and add abi-tag for C++2a. Return number of removed elements for
 681         C++2a.
 682         (list::remove_if<Predicate>, list::unique<BinaryPredicate>): Use typedef
 683         to change return type for C++2a. Return number of removed elements for
 684         C++2a.
 685
 686 2018-08-21  David Edelsohn  <dje.gcc@gmail.com>
 687
 688         * testsuite/18_support/new_nothrow.cc: XFAIL on AIX.
 689
 690 2018-08-21  Jonathan Wakely  <jwakely@redhat.com>
 691
 692         * testsuite/26_numerics/bit/bitops.count/countl_one.cc: Remove
 693         redundant dg-do directive.
 694         * testsuite/26_numerics/bit/bitops.count/countl_zero.cc: Likewise.
 695         * testsuite/26_numerics/bit/bitops.count/countr_one.cc: Likewise.
 696         * testsuite/26_numerics/bit/bitops.count/countr_zero.cc: Likewise.
 697         * testsuite/26_numerics/bit/bitops.count/popcount.cc: Likewise.
 698
 699 2018-08-20  Jonathan Wakely  <jwakely@redhat.com>
 700
 701         PR libstdc++/86963
 702         * include/std/tuple (_Tuple_impl::operator=): Define as deleted.
 703         (_Tuple_impl::_M_assign): New functions to perform assignment instead
 704         of assignment operators.
 705         (_Tuple_impl::_M_swap): Remove exception specification.
 706         (_Tuple_impl<_Idx, _Head>): Likewise.
 707         (_TC::_NonNestedTuple, _TC::_NotSameTuple): Use __remove_cvref_t.
 708         (__tuple_base): Remove.
 709         (tuple, tuple<_T1, _T2>): Remove inheritance from __tuple_base.
 710         (tuple::operator=, tuple<_T1, _T2>::operator=): Call _M_assign.
 711         (tuple::swap, tuple<_T1, _T2>::swap): Define exception specification
 712         using __is_nothrow_swappable.
 713         (tuple<_T1, _T2>::tuple(_U1&&, _U2&&)): Use __remove_cvref_t.
 714
 715         * include/std/optional (_Optional_payload): Use variable templates
 716         for conditions in default template arguments and exception
 717         specifications.
 718         (optional): Likewise. Adjust indentation.
 719         (optional::__not_self, optional::__not_tag, optional::_Requires): New
 720         SFINAE helpers.
 721         (optional::optional): Use new helpers in constructor constraints.
 722         * include/std/type_traits (__or_v, __and_v): New variable templates.
 723         * testsuite/20_util/optional/cons/value_neg.cc: Change dg-error to
 724         dg-prune-output. Remove unused header.
 725
 726 2018-08-18  François Dumont  <fdumont@gcc.gnu.org>
 727
 728         * testsuite/25_algorithms/copy/86658.cc: Use dg-options to define
 729         _GLIBCXX_DEBUG.
 730
 731 2018-08-17  Jonathan Wakely  <jwakely@redhat.com>
 732
 733         PR libstdc++/86963
 734         * include/std/tuple (__tuple_base): New class template with deleted
 735         copy assignment operator.
 736         (tuple, tuple<_T1, _T2>): Derive from __tuple_base<tuple> so that
 737         implicit copy/move assignment operator will be deleted/suppressed.
 738         (tuple::__assignable, tuple<_T1, _T2>::__assignable): New helper
 739         functions for SFINAE constraints on assignment operators.
 740         (tuple::__nothrow_assignable, tuple<_T1, _T2>::__nothrow_assignable):
 741         New helper functions for exception specifications.
 742         (tuple::operator=(const tuple&), tuple::operator=(tuple&&))
 743         (tuple<_T1, _T2>::operator=(const tuple&))
 744         (tuple<_T1, _T2>::operator=(tuple&&)): Change parameter types to
 745         __nonesuch_no_braces when the operator should be defined implicitly.
 746         Use __nothrow_assignable for exception specifications.
 747         (tuple::operator=(const tuple<_UElements...>&))
 748         (tuple::operator=(tuple<_UElements...>&&))
 749         (tuple<_T1, _T2>::operator=(const tuple<_U1, _U2>&))
 750         (tuple<_T1, _T2>::operator=(tuple<_U1, _U2>&&))
 751         (tuple<_T1, _T2>::operator=(const pair<_U1, _U2>&))
 752         (tuple<_T1, _T2>::operator=(pair<_U1, _U2>&&)): Constrain using
 753         __assignable and use __nothrow_assignable for exception
 754         specifications.
 755         * python/libstdcxx/v6/printers.py (is_specialization_of): Accept
 756         gdb.Type as first argument, instead of a string.
 757         (StdTuplePrinter._iterator._is_nonempty_tuple): New method to check
 758         tuple for expected structure.
 759         (StdTuplePrinter._iterator.__init__): Use _is_nonempty_tuple.
 760         * testsuite/20_util/tuple/dr2729.cc: New test.
 761         * testsuite/20_util/tuple/element_access/get_neg.cc: Change dg-error
 762         to dg-prune-output.
 763
 764 2018-08-16  Jonathan Wakely  <jwakely@redhat.com>
 765
 766         * include/tr1/legendre_function.tcc (__sph_legendre): Avoid warning
 767         about signed/unsigned comparison.
 768
 769         * include/std/ostream (basic_ostream::sentry::~sentry): Suppress
 770         deprecation warnings for using uncaught_exception().
 771
 772         PR libstdc++/86447
 773         * src/c++11/cow-stdexcept.cc [_GLIBCXX_FULLY_DYNAMIC_STRING]
 774         (logic_error::logic_error(logic_error&&))
 775         (logic_error::operator=(logic_error&&))
 776         (runtime_error::runtime_error(runtime_error&&))
 777         (runtime_error::operator=(runtime_error&&)): Copy strings instead of
 778         moving, to avoid allocating empty reps for moved-from strings.
 779
 780 2018-08-15  Jonathan Wakely  <jwakely@redhat.com>
 781
 782         * include/experimental/regex: Remove begin/end macros for namespace.
 783         * include/experimental/string: Likewise.
 784         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc:
 785         New test.
 786         * testsuite/experimental/polymorphic_allocator/
 787         pmr_typedefs_forward_list.cc: New test.
 788         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc:
 789         New test.
 790         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc:
 791         New test.
 792         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
 793         New test.
 794         * testsuite/experimental/polymorphic_allocator/
 795         pmr_typedefs_multimap.cc: New test.
 796         * testsuite/experimental/polymorphic_allocator/
 797         pmr_typedefs_multiset.cc: New test.
 798         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc:
 799         New test.
 800         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
 801         New test.
 802         * testsuite/experimental/polymorphic_allocator/
 803         pmr_typedefs_unordered_map.cc: New test.
 804         * testsuite/experimental/polymorphic_allocator/
 805         pmr_typedefs_unordered_multimap.cc: New test.
 806         * testsuite/experimental/polymorphic_allocator/
 807         pmr_typedefs_unordered_multiset.cc: New test.
 808         * testsuite/experimental/polymorphic_allocator/
 809         pmr_typedefs_unordered_set.cc: New test.
 810         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc:
 811         New test.
 812
 813         * include/bits/uses_allocator.h (__uses_allocator_construct): Qualify
 814         calls to __uses_allocator_construct_impl and __use_alloc.
 815         * include/experimental/memory_resource
 816         (polymorphic_allocator::_M_construct): Remove.
 817         (polymorphic_allocator::construct): Call __uses_allocator_construct.
 818         Qualify calls to __use_alloc.
 819         * include/std/memory_resource (polymorphic_allocator::construct): Fix
 820         type in SFINAE constraint. Use constexpr if instead of tag dispatching
 821         to _S_construct overloads.
 822         (polymorphic_allocator::construct(pair<T1, T2>*, ...)): Fix order of
 823         arguments to _S_construct_p.
 824         (polymorphic_allocator::_S_construct): Remove.
 825         (polymorphic_allocator::_S_construct_p): Return allocators by value
 826         not by reference.
 827         * include/std/scoped_allocator (scoped_allocator_adaptor::construct):
 828         Qualify calls to __use_alloc.
 829         * testsuite/20_util/polymorphic_allocator/construct_pair.cc: New test,
 830         copied from testsuite/20_util/scoped_allocator/construct_pair.cc.
 831         * testsuite/experimental/polymorphic_allocator/1.cc: New test.
 832         * testsuite/experimental/polymorphic_allocator/construct_pair.cc:
 833         New test.
 834
 835         * src/c++17/memory_resource.cc [!_GLIBCXX_HAS_GTHREADS]
 836         (atomic_mem_res): Add unsynchronized definition for single-threaded.
 837
 838 2018-08-14  Jonathan Wakely  <jwakely@redhat.com>
 839
 840         PR libstdc++/86954
 841         * include/bits/stl_tempbuf.h (return_temporary_buffer): Use
 842         non-placement delete.
 843
 844         * include/std/chrono (__check_overflow): Simplify definition.
 845         (_Checked_integral_constant): Remove.
 846
 847         PR libstdc++/86846
 848         * src/c++17/default_resource.h: New file, defining default_res.
 849         * src/c++17/memory_resource.cc [ATOMIC_POINTER_LOCK_FREE != 2]
 850         (atomic_mem_res): Define alternative for atomic<memory_resource*>
 851         using a mutex instead of atomics.
 852
 853         PR libstdc++/85343
 854         * config/abi/pre/gnu.ver: Export new symbol.
 855         * doc/xml/manual/abi.xml: Document new versions.
 856         * include/bits/fstream.tcc (basic_filebuf<C, T>::underflow)
 857         (basic_filebuf<C, T>::xsgetn): Pass errno to __throw_ios_failure.
 858         * include/bits/functexcept.h (__throw_ios_failure(const char*, int)):
 859         Declare new overload.
 860         * src/c++11/cxx11-ios_failure.cc (__ios_failure): Add new constructor
 861         and static member function.
 862         (__throw_ios_failure(const char*, int)): Define.
 863         * src/c++98/ios_failure.cc [!_GLIBCXX_USE_DUAL_ABI]
 864         (__throw_ios_failure(const char*, int)): Define.
 865
 866 2018-08-14  Jeremy Sawicki  <jeremy-gcc@sawicki.us>
 867
 868         * include/ext/rope (_Rope_iterator_base(const _Rope_iterator_base&))
 869         (_Rope_const_iterator::operator=(const _Rope_const_iterator&))
 870         (_Rope_iterator::operator=(const _Rope_iterator&)): Ensure
 871         copied/assigned rope iterators don't retain pointers to the iterator
 872         they were copied/assigned from.
 873         * testsuite/ext/rope/7.cc: New.
 874
 875 2018-08-13  Jonathan Wakely  <jwakely@redhat.com>
 876
 877         PR libstdc++/45093
 878         * include/bits/stl_tree.h (_Rb_tree::_M_destroy_node(_Link_type)):
 879         Combine definitions to avoid --detect-odr-violations warning.
 880
 881         * libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Use
 882         __is_pow2 to check for valid alignment. Avoid branching when rounding
 883         size to multiple of alignment.
 884
 885         * include/Makefile.am: Install <bit> and <version> for freestanding.
 886         * include/Makefile.in: Regenerate.
 887         * testsuite/17_intro/freestanding.cc: Check for <bit> and <version>.
 888
 889         Revert
 890         2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 891
 892         PR target/85904
 893         * configure.ac: Define HAVE_ALIGNED_ALLOC if building for
 894         Newlib.
 895         * configure: Regenerate.
 896
 897 2018-08-10  Jonathan Wakely  <jwakely@redhat.com>
 898
 899         PR libstdc++/68210
 900         * doc/xml/manual/intro.xml: Document LWG 206 change.
 901         * libsupc++/del_op.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
 902         * libsupc++/del_opa.cc: Likewise.
 903         * libsupc++/del_opant.cc: Likewise.
 904         * libsupc++/del_opnt.cc: Likewise. Call operator delete(ptr) instead
 905         of free(ptr).
 906         * libsupc++/del_ops.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
 907         * libsupc++/del_opsa.cc: Likewise.
 908         * libsupc++/del_opva.cc: Likewise.
 909         * libsupc++/del_opvant.cc: Likewise.
 910         * libsupc++/del_opvnt.cc: Likewise. Call operator delete[](ptr)
 911         instead of operator delete(ptr).
 912         * libsupc++/del_opvs.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
 913         * libsupc++/del_opvsa.cc: Likewise.
 914         * libsupc++/new_op.cc: Use __builtin_expect in check for zero size.
 915         * libsupc++/new_opa.cc: Use nullptr instead of literal 0.
 916         * libsupc++/new_opant.cc: Likewise. Replace _GLIBCXX_USE_NOEXCEPT
 917         with noexcept.
 918         * libsupc++/new_opnt.cc: Likewise. Call operator new(sz) instead of
 919         malloc(sz).
 920         * libsupc++/new_opvant.cc: Use nullptr and noexcept.
 921         * libsupc++/new_opvnt.cc: Likewise. Call operator new[](sz) instead of
 922         operator new(sz, nothrow).
 923         * testsuite/18_support/new_nothrow.cc: New test.
 924
 925 2018-08-10  Martin Liska  <mliska@suse.cz>
 926
 927         * libsupc++/new_op.cc (new): Remove __builtin_expect as malloc
 928         predictor can handle that.
 929         * libsupc++/new_opa.cc: Likewise.
 930         * libsupc++/new_opnt.cc (new): Likewise.
 931
 932 2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
 933
 934         PR target/85904
 935         * configure.ac: Define HAVE_ALIGNED_ALLOC if building for
 936         Newlib.
 937         * configure: Regenerate.
 938
 939 2018-08-10  Jonathan Wakely  <jwakely@redhat.com>
 940
 941         * include/std/deque (std::pmr::deque): Declare alias.
 942         * include/std/forward_list (std::pmr::forward_list): Likewise.
 943         * include/std/list (std::pmr::list): Likewise.
 944         * include/std/map (std::pmr::map, std::pmr::multimap): Likewise.
 945         * include/std/regex (std::pmr::match_results, std::pmr::cmatch)
 946         (std::pmr::smatch, std::pmr::wcmatch, std::pmr::wsmatch): Likewise.
 947         * include/std/set (std::pmr::set, std::pmr::multiset): Likewise.
 948         * include/std/string (std::pmr::basic_string, std::pmr::string)
 949         (std::pmr::u16string, std::pmr::u32string, std::pmr::wstring):
 950         Likewise.
 951         * include/std/unordered_map (std::pmr::unordered_map)
 952         (std::pmr::unordered_multimap): Likewise.
 953         * include/std/unordered_set (std::pmr::unordered_set)
 954         (std::pmr::unordered_multiset): Likewise.
 955         * include/std/vector (std::pmr::vector): Likewise.
 956         * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: New test.
 957         * testsuite/23_containers/deque/types/pmr_typedefs.cc: New test.
 958         * testsuite/23_containers/forward_list/pmr_typedefs.cc: New test.
 959         * testsuite/23_containers/list/pmr_typedefs.cc: New test.
 960         * testsuite/23_containers/map/pmr_typedefs.cc: New test.
 961         * testsuite/23_containers/multimap/pmr_typedefs.cc: New test.
 962         * testsuite/23_containers/multiset/pmr_typedefs.cc: New test.
 963         * testsuite/23_containers/set/pmr_typedefs.cc: New test.
 964         * testsuite/23_containers/unordered_map/pmr_typedefs.cc: New test.
 965         * testsuite/23_containers/unordered_multimap/pmr_typedefs.cc: New
 966         test.
 967         * testsuite/23_containers/unordered_multiset/pmr_typedefs.cc: New
 968         test.
 969         * testsuite/23_containers/unordered_set/pmr_typedefs.cc: New test.
 970         * testsuite/23_containers/vector/pmr_typedefs.cc: New test.
 971         * testsuite/28_regex/match_results/pmr_typedefs.cc: New test.
 972
 973 2018-08-08  François Dumont  <fdumont@gcc.gnu.org>
 974
 975         * include/bits/stl_algo.h
 976         (__rotate(_Ite, _Ite, _Ite, forward_iterator_tag))
 977         (__rotate(_Ite, _Ite, _Ite, bidirectional_iterator_tag))
 978         (__rotate(_Ite, _Ite, _Ite, random_access_iterator_tag)): Move code
 979         duplication...
 980         (rotate(_Ite, _Ite, _Ite)): ...here.
 981         (__stable_partition_adaptive(_FIt, _FIt, _Pred, _Dist, _Pointer, _Dist)):
 982         Simplify rotate call.
 983         (__rotate_adaptive(_BIt1, _BIt1, _BIt1, _Dist, _Dist, _Bit2, _Dist)):
 984         Likewise.
 985         (__merge_without_buffer(_BIt, _BIt, _BIt, _Dist, _Dist, _Comp)):
 986         Likewise.
 987
 988 2018-08-08  Jonathan Wakely  <jwakely@redhat.com>
 989
 990         * libsupc++/new_opa.cc (aligned_alloc): Declare inside namespace to
 991         avoid clashing with an ::aligned_alloc function that was not detected
 992         by configure.
 993
 994         * doc/xml/manual/using.xml: Fix markup for empty table entry.
 995         * doc/html/*: Regenerate.
 996
 997         * doc/xml/manual/using.xml: Add missing header to table and fix typo.
 998         * doc/html/*: Regenerate.
 999
1000         PR libstdc++/86597
1001         * include/bits/fs_dir.h (directory_entry::_M_file_type(error_code&)):
1002         Clear error_code when cached type is used.
1003         * testsuite/27_io/filesystem/directory_entry/86597.cc: New test.
1004
1005 2018-08-07  Jonathan Wakely  <jwakely@redhat.com>
1006
1007         PR libstdc++/86874
1008         * include/std/variant (_Copy_ctor_base::_M_destructive_move): Define
1009         here instead of in _Move_assign_base.
1010         (_Copy_ctor_base<true, _Types...>::_M_destructive_move): Define.
1011         (_Copy_assign_base::operator=): Use _M_destructive_move when changing
1012         the contained value to another alternative.
1013         (_Move_assign_base::operator=): Likewise.
1014         (_Move_assign_base::_M_destructive_move): Remove.
1015         * testsuite/20_util/variant/86874.cc: New test.
1016
1017         PR libstdc++/86861
1018         * libsupc++/new_opa.cc [_GLIBCXX_HAVE_MEMALIGN] (aligned_alloc):
1019         Replace macro with inline function.
1020         [__sun]: Increase alignment to meet memalign precondition.
1021         [!HAVE__ALIGNED_MALLOC && !HAVE_POSIX_MEMALIGN && !HAVE_MEMALIGN]
1022         (aligned_alloc): Move check for valid alignment to operator new.
1023         Remove redundant check for non-zero size, it's enforced by the caller.
1024         (operator new): Move check for valid alignment here. Use
1025         __builtin_expect on check for zero size.
1026
1027         * config/abi/pre/gnu.ver: Export monotonic_buffer_resource members.
1028         * include/std/memory_resource (monotonic_buffer_resource::release):
1029         Call _M_release_buffers to free buffers.
1030         (monotonic_buffer_resource::do_allocate): Call _M_new_buffer to
1031         allocate a new buffer from upstream.
1032         (monotonic_buffer_resource::_M_new_buffer): Declare.
1033         (monotonic_buffer_resource::_M_release_buffers): Declare.
1034         (monotonic_buffer_resource::_Chunk): Replace definition with
1035         declaration as opaque type.
1036         * src/c++17/memory_resource.cc (monotonic_buffer_resource::_Chunk):
1037         Define.
1038         (monotonic_buffer_resource::_M_new_buffer): Define.
1039         (monotonic_buffer_resource::_M_release_buffers): Define.
1040
1041 2018-08-05  François Dumont  <fdumont@gcc.gnu.org>
1042
1043         * include/bits/stl_iterator.h: Fix comment.
1044
1045 2018-08-03  Jonathan Wakely  <jwakely@redhat.com>
1046
1047         * src/c++11/system_error.cc
1048         (system_error_category::default_error_condition): Add workaround for
1049         ENOTEMPTY and EEXIST having the same value on AIX.
1050         * testsuite/19_diagnostics/error_category/system_category.cc: Add
1051         extra testcases for EDOM, EILSEQ, ERANGE, EEXIST and ENOTEMPTY.
1052
1053 2018-08-01  Jonathan Wakely  <jwakely@redhat.com>
1054
1055         * configure: Regenerate.
1056         * configure.ac: Add -D_GLIBCXX_ASSERTIONS to default DEBUG_FLAGS.
1057         * src/c++11/futex.cc: Use __glibcxx_assert instead of
1058         _GLIBCXX_DEBUG_ASSERT.
1059
1060 2018-08-01  Mike Crowe  <mac@mcrowe.com>
1061
1062         * include/std/condition_variable (wait_for): Use steady_clock.
1063
1064 2018-08-01  Mike Crowe  <mac@mcrowe.com>
1065
1066         * include/std/condition_variable (wait_until): Only report timeout
1067         if we really have timed out when measured against the
1068         caller-supplied clock.
1069         * testsuite/30_threads/condition_variable/members/2.cc: Add test
1070         case to confirm above behaviour.
1071
1072 2018-08-01  Jonathan Wakely  <jwakely@redhat.com>
1073
1074         PR libstdc++/60555
1075         * src/c++11/system_error.cc
1076         (system_error_category::default_error_condition): New override to
1077         check for POSIX errno values.
1078         * testsuite/19_diagnostics/error_category/generic_category.cc: New
1079         * testsuite/19_diagnostics/error_category/system_category.cc: New
1080         test.
1081
1082 2018-07-31  Jonathan Wakely  <jwakely@redhat.com>
1083
1084         PR libstdc++/86751
1085         * include/bits/stl_pair.h (__pair_base): New class with deleted copy
1086         assignment operator.
1087         (pair): Derive from __pair_base.
1088         (pair::operator=): Remove deleted overload.
1089         * python/libstdcxx/v6/printers.py (StdPairPrinter): New pretty printer
1090         so that new base class isn't shown in GDB.
1091         * testsuite/20_util/pair/86751.cc: New test.
1092         * testsuite/20_util/pair/ref_assign.cc: New test.
1093
1094         * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP)
1095         (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Move definitions here.
1096         (_GLIBCXX_HAVE_BUILTIN_LAUNDER): Likewise. Use !__is_identifier
1097         instead of __has_builtin.
1098         * include/std/type_traits (_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP)
1099         (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Remove definitions from here.
1100         * include/std/version [!_GLIBCXX_HAS_GTHREADS]
1101         (__cpp_lib_shared_timed_mutex, __cpp_lib_scoped_lock)
1102         (__cpp_lib_shared_mutex): Don't define when Gthreads not in use.
1103         [!_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP]
1104         (__cpp_lib_has_unique_object_representations): Don't define when
1105         builtin not available.
1106         [!_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE] (__cpp_lib_is_aggregate):
1107         Likewise.
1108         [!_GLIBCXX_HAVE_BUILTIN_LAUNDER] (__cpp_lib_launder): Likewise.
1109         * libsupc++/new (_GLIBCXX_HAVE_BUILTIN_LAUNDER): Remove definition
1110         from here.
1111
1112         * doc/xml/manual/test.xml: Improve documentation on writing tests for
1113         newer standards.
1114         * doc/xml/manual/using.xml: Document all headers for C++11 and later.
1115         * doc/html/*: Regenerate.
1116
1117         * include/ext/pointer.h [__cplusplus >= 201103L]
1118         (_Pointer_adapter::operator bool): Add explicit conversion operator
1119         to replace safe bool idiom.
1120
1121 2018-07-30  Jonathan Wakely  <jwakely@redhat.com>
1122
1123         PR libstdc++/86734
1124         * include/bits/stl_iterator.h (reverse_iterator::operator->): Call
1125         _S_to_pointer (LWG 1052, LWG 2118).
1126         (reverse_iterator::_S_to_pointer): Define overloaded helper functions.
1127         * testsuite/24_iterators/reverse_iterator/dr1052.cc: New test.
1128         * testsuite/24_iterators/reverse_iterator/dr2188.cc: New test.
1129
1130         * libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Add
1131         workaround for aligned_alloc bug on AIX.
1132         * testsuite/18_support/new_aligned.cc: New test.
1133
1134 2018-07-26  Marek Polacek  <polacek@redhat.com>
1135
1136         * testsuite/30_threads/condition_variable_any/cond.cc: New.
1137
1138 2018-07-26  Marek Polacek  <polacek@redhat.com>
1139
1140         * src/c++98/locale_init.cc: Fix #ifdef condition.
1141
1142 2018-07-26  Jonathan Wakely  <jwakely@redhat.com>
1143
1144         * testsuite/18_support/aligned_alloc/aligned_alloc.cc: Add
1145         dg-require-cstdint directive.
1146         * testsuite/20_util/allocator/overaligned.cc: Likewise.
1147         * testsuite/20_util/any/cons/aligned.cc: Likewise.
1148         * testsuite/20_util/monotonic_buffer_resource/allocate.cc: Likewise.
1149         * testsuite/20_util/monotonic_buffer_resource/deallocate.cc: Likewise.
1150         * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
1151         Likewise.
1152         * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
1153         * testsuite/23_containers/list/modifiers/insert/25288.cc: Likewise.
1154         * testsuite/23_containers/set/allocator/move_assign.cc: Likewise.
1155         * testsuite/25_algorithms/make_heap/complexity.cc: Likewise.
1156         * testsuite/25_algorithms/pop_heap/complexity.cc: Require cstdint and
1157         random_device effective-target.
1158         * testsuite/25_algorithms/push_heap/complexity.cc: Likewise.
1159         * testsuite/25_algorithms/sample/1.cc: Require cstdint.
1160         * testsuite/25_algorithms/sample/2.cc: Likewise.
1161         * testsuite/25_algorithms/sort_heap/complexity.cc: Require cstdint
1162         and random_device.
1163         * testsuite/26_numerics/headers/random/types_std_c++0x.cc: Require
1164         cstdint.
1165         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
1166         Likewise.
1167         * testsuite/26_numerics/random/discard_block_engine/requirements/
1168         constexpr_data.cc: Likewise.
1169         * testsuite/26_numerics/random/discard_block_engine/requirements/
1170         constexpr_functions.cc: Likewise.
1171         * testsuite/26_numerics/random/independent_bits_engine/requirements/
1172         constexpr_functions.cc: Likewise.
1173         * testsuite/26_numerics/random/linear_congruential_engine/requirements/
1174         constexpr_data.cc: Likewise.
1175         * testsuite/26_numerics/random/linear_congruential_engine/requirements/
1176         constexpr_functions.cc: Likewise.
1177         * testsuite/26_numerics/random/mersenne_twister_engine/requirements/
1178         constexpr_data.cc: Likewise.
1179         * testsuite/26_numerics/random/mersenne_twister_engine/requirements/
1180         constexpr_functions.cc: Likewise.
1181         * testsuite/26_numerics/random/pr60037-neg.cc: Likewise.
1182         * testsuite/26_numerics/random/seed_seq/cons/65631.cc: Likewise.
1183         * testsuite/26_numerics/random/shuffle_order_engine/requirements/
1184         constexpr_data.cc: Add dg-require-cstdint directive.
1185         * testsuite/26_numerics/random/shuffle_order_engine/requirements/
1186         constexpr_functions.cc: Likewise.
1187         * testsuite/26_numerics/random/subtract_with_carry_engine/requirements/
1188         constexpr_data.cc: Likewise.
1189         * testsuite/26_numerics/random/subtract_with_carry_engine/requirements/
1190         constexpr_functions.cc: Likewise.
1191         * testsuite/26_numerics/random/uniform_real_distribution/operators/
1192         64351.cc: Likewise.
1193         * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc: Likewise.
1194         * testsuite/experimental/algorithm/sample-2.cc: Likewise.
1195         * testsuite/experimental/algorithm/sample.cc: Likewise.
1196         * testsuite/experimental/algorithm/search.cc: Likewise.
1197         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
1198         * testsuite/experimental/any/cons/aligned.cc: Likewise.
1199         * testsuite/experimental/memory_resource/new_delete_resource.cc:
1200         Likewise.
1201         * testsuite/experimental/memory_resource/resource_adaptor.cc: Likewise.
1202         * testsuite/experimental/random/randint.cc: Likewise.
1203         * testsuite/experimental/source_location/1.cc: Likewise.
1204         * testsuite/ext/bitmap_allocator/overaligned.cc: Likewise.
1205         * testsuite/ext/malloc_allocator/overaligned.cc: Likewise.
1206         * testsuite/ext/mt_allocator/overaligned.cc: Likewise.
1207         * testsuite/ext/new_allocator/overaligned.cc: Likewise.
1208         * testsuite/ext/pb_ds/regression/hash_map_rand.cc: Likewise.
1209         * testsuite/ext/pb_ds/regression/hash_set_rand.cc: Likewise.
1210         * testsuite/ext/pb_ds/regression/list_update_map_rand.cc: Likewise.
1211         * testsuite/ext/pb_ds/regression/list_update_set_rand.cc: Likewise.
1212         * testsuite/ext/pb_ds/regression/priority_queue_rand.cc: Likewise.
1213         * testsuite/ext/pb_ds/regression/tree_map_rand.cc: Likewise.
1214         * testsuite/ext/pb_ds/regression/tree_set_rand.cc: Likewise.
1215         * testsuite/ext/pb_ds/regression/trie_map_rand.cc: Likewise.
1216         * testsuite/ext/pb_ds/regression/trie_set_rand.cc: Likewise.
1217         * testsuite/ext/pool_allocator/overaligned.cc: Likewise.
1218         * testsuite/ext/throw_allocator/check_allocate_max_size.cc: Likewise.
1219         * testsuite/ext/throw_allocator/check_deallocate_null.cc: Likewise.
1220         * testsuite/ext/throw_allocator/check_delete.cc: Likewise.
1221         * testsuite/ext/throw_allocator/check_new.cc: Likewise.
1222         * testsuite/ext/throw_allocator/deallocate_global.cc: Likewise.
1223         * testsuite/ext/throw_allocator/deallocate_local.cc: Likewise.
1224         * testsuite/ext/throw_allocator/explicit_instantiation.cc: Likewise.
1225         * testsuite/ext/throw_allocator/variadic_construct.cc: Likewise.
1226         * testsuite/tr1/8_c_compatibility/cinttypes/functions.cc: Likewise.
1227
1228         * testsuite/30_threads/recursive_mutex/cons/1.cc: Likewise.
1229         * testsuite/30_threads/recursive_mutex/cons/assign_neg.cc: Likewise.
1230         * testsuite/30_threads/recursive_mutex/cons/copy_neg.cc: Likewise.
1231         * testsuite/30_threads/recursive_mutex/dest/destructor_locked.cc:
1232         Likewise.
1233         * testsuite/30_threads/recursive_mutex/lock/1.cc: Likewise.
1234         * testsuite/30_threads/recursive_mutex/native_handle/1.cc: Likewise.
1235         * testsuite/30_threads/recursive_mutex/native_handle/typesizes.cc:
1236         Likewise.
1237         * testsuite/30_threads/recursive_mutex/requirements/standard_layout.cc:
1238         Likewise.
1239         * testsuite/30_threads/recursive_mutex/requirements/typedefs.cc:
1240         Likewise.
1241         * testsuite/30_threads/recursive_mutex/try_lock/1.cc: Likewise.
1242         * testsuite/30_threads/recursive_mutex/try_lock/2.cc: Likewise.
1243         * testsuite/30_threads/recursive_mutex/unlock/1.cc: Likewise.
1244         * testsuite/30_threads/recursive_mutex/unlock/2.cc: Likewise.
1245         * testsuite/30_threads/recursive_timed_mutex/cons/1.cc: Likewise.
1246         * testsuite/30_threads/recursive_timed_mutex/cons/assign_neg.cc:
1247         Likewise.
1248         * testsuite/30_threads/recursive_timed_mutex/cons/copy_neg.cc:
1249         Likewise.
1250         * testsuite/30_threads/recursive_timed_mutex/dest/
1251         destructor_locked.cc: Likewise.
1252         * testsuite/30_threads/recursive_timed_mutex/lock/1.cc: Likewise.
1253         * testsuite/30_threads/recursive_timed_mutex/lock/2.cc: Likewise.
1254         * testsuite/30_threads/recursive_timed_mutex/native_handle/1.cc:
1255         Likewise.
1256         * testsuite/30_threads/recursive_timed_mutex/native_handle/
1257         typesizes.cc: Likewise.
1258         * testsuite/30_threads/recursive_timed_mutex/requirements/typedefs.cc:
1259         Likewise.
1260         * testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc:
1261         Likewise.
1262         * testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc:
1263         Likewise.
1264         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
1265         Likewise.
1266         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
1267         Likewise.
1268         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
1269         Likewise.
1270         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
1271         Likewise.
1272         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
1273         Likewise.
1274         * testsuite/30_threads/recursive_timed_mutex/unlock/1.cc: Likewise.
1275         * testsuite/30_threads/recursive_timed_mutex/unlock/2.cc: Likewise.
1276         * testsuite/30_threads/scoped_lock/cons/1.cc: Likewise.
1277         * testsuite/30_threads/scoped_lock/requirements/
1278         explicit_instantiation.cc: Likewise.
1279         * testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Likewise.
1280         * testsuite/30_threads/shared_future/cons/assign.cc: Likewise.
1281         * testsuite/30_threads/shared_future/cons/constexpr.cc: Likewise.
1282         * testsuite/30_threads/shared_future/cons/copy.cc: Likewise.
1283         * testsuite/30_threads/shared_future/cons/default.cc: Likewise.
1284         * testsuite/30_threads/shared_future/cons/move.cc: Likewise.
1285         * testsuite/30_threads/shared_future/cons/move_assign.cc: Likewise.
1286         * testsuite/30_threads/shared_future/members/45133.cc: Likewise.
1287         * testsuite/30_threads/shared_future/members/get.cc: Likewise.
1288         * testsuite/30_threads/shared_future/members/get2.cc: Likewise.
1289         * testsuite/30_threads/shared_future/members/valid.cc: Likewise.
1290         * testsuite/30_threads/shared_future/members/wait.cc: Likewise.
1291         * testsuite/30_threads/shared_future/members/wait_for.cc: Likewise.
1292         * testsuite/30_threads/shared_future/members/wait_until.cc: Likewise.
1293         * testsuite/30_threads/shared_future/requirements/
1294         explicit_instantiation.cc: Likewise.
1295         * testsuite/30_threads/shared_lock/cons/1.cc: Likewise.
1296         * testsuite/30_threads/shared_lock/cons/2.cc: Likewise.
1297         * testsuite/30_threads/shared_lock/cons/3.cc: Likewise.
1298         * testsuite/30_threads/shared_lock/cons/4.cc: Likewise.
1299         * testsuite/30_threads/shared_lock/cons/5.cc: Likewise.
1300         * testsuite/30_threads/shared_lock/cons/6.cc: Likewise.
1301         * testsuite/30_threads/shared_lock/locking/1.cc: Likewise.
1302         * testsuite/30_threads/shared_lock/locking/2.cc: Likewise.
1303         * testsuite/30_threads/shared_lock/locking/3.cc: Likewise.
1304         * testsuite/30_threads/shared_lock/locking/4.cc: Likewise.
1305         * testsuite/30_threads/shared_lock/modifiers/1.cc: Likewise.
1306         * testsuite/30_threads/shared_lock/requirements/
1307         explicit_instantiation.cc: Likewise.
1308         * testsuite/30_threads/shared_lock/requirements/typedefs.cc: Likewise.
1309         * testsuite/30_threads/shared_mutex/cons/1.cc: Likewise.
1310         * testsuite/30_threads/shared_mutex/cons/assign_neg.cc: Likewise.
1311         * testsuite/30_threads/shared_mutex/cons/copy_neg.cc: Likewise.
1312         * testsuite/30_threads/shared_mutex/requirements/standard_layout.cc:
1313         Likewise.
1314         * testsuite/30_threads/shared_mutex/try_lock/1.cc: Likewise.
1315         * testsuite/30_threads/shared_mutex/try_lock/2.cc: Likewise.
1316         * testsuite/30_threads/shared_mutex/unlock/1.cc: Likewise.
1317         * testsuite/30_threads/shared_timed_mutex/cons/1.cc: Likewise.
1318         * testsuite/30_threads/shared_timed_mutex/cons/assign_neg.cc: Likewise.
1319         * testsuite/30_threads/shared_timed_mutex/cons/copy_neg.cc: Likewise.
1320         * testsuite/30_threads/shared_timed_mutex/requirements/
1321         standard_layout.cc: Likewise.
1322         * testsuite/30_threads/shared_timed_mutex/try_lock/1.cc: Likewise.
1323         * testsuite/30_threads/shared_timed_mutex/try_lock/2.cc: Likewise.
1324         * testsuite/30_threads/shared_timed_mutex/try_lock/3.cc: Likewise.
1325         * testsuite/30_threads/shared_timed_mutex/unlock/1.cc: Likewise.
1326         * testsuite/30_threads/this_thread/1.cc: Likewise.
1327         * testsuite/30_threads/this_thread/2.cc: Likewise.
1328         * testsuite/30_threads/this_thread/3.cc: Likewise.
1329         * testsuite/30_threads/this_thread/4.cc: Likewise.
1330         * testsuite/30_threads/this_thread/58038.cc: Likewise.
1331         * testsuite/30_threads/thread/70503.cc: Likewise.
1332         * testsuite/30_threads/thread/84532.cc: Likewise.
1333         * testsuite/30_threads/thread/adl.cc: Likewise.
1334         * testsuite/30_threads/thread/cons/1.cc: Likewise.
1335         * testsuite/30_threads/thread/cons/2.cc: Likewise.
1336         * testsuite/30_threads/thread/cons/3.cc: Likewise.
1337         * testsuite/30_threads/thread/cons/4.cc: Likewise.
1338         * testsuite/30_threads/thread/cons/49668.cc: Likewise.
1339         * testsuite/30_threads/thread/cons/5.cc: Likewise.
1340         * testsuite/30_threads/thread/cons/6.cc: Likewise.
1341         * testsuite/30_threads/thread/cons/7.cc: Likewise.
1342         * testsuite/30_threads/thread/cons/8.cc: Likewise.
1343         * testsuite/30_threads/thread/cons/84535.cc: Likewise.
1344         * testsuite/30_threads/thread/cons/9.cc: Likewise.
1345         * testsuite/30_threads/thread/cons/assign_neg.cc: Likewise.
1346         * testsuite/30_threads/thread/cons/copy_neg.cc: Likewise.
1347         * testsuite/30_threads/thread/cons/lwg2097.cc: Likewise.
1348         * testsuite/30_threads/thread/cons/moveable.cc: Likewise.
1349         * testsuite/30_threads/thread/cons/terminate.cc: Likewise.
1350         * testsuite/30_threads/thread/id/operators.cc: Likewise.
1351         * testsuite/30_threads/thread/members/1.cc: Likewise.
1352         * testsuite/30_threads/thread/members/2.cc: Likewise.
1353         * testsuite/30_threads/thread/members/3.cc: Likewise.
1354         * testsuite/30_threads/thread/members/4.cc: Likewise.
1355         * testsuite/30_threads/thread/members/5.cc: Likewise.
1356         * testsuite/30_threads/thread/members/hardware_concurrency.cc:
1357         Likewise.
1358         * testsuite/30_threads/thread/native_handle/cancel.cc: Likewise.
1359         * testsuite/30_threads/thread/swap/1.cc: Likewise.
1360         * testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
1361         * testsuite/30_threads/timed_mutex/cons/assign_neg.cc: Likewise.
1362         * testsuite/30_threads/timed_mutex/cons/copy_neg.cc: Likewise.
1363         * testsuite/30_threads/timed_mutex/dest/destructor_locked.cc: Likewise.
1364         * testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
1365         * testsuite/30_threads/timed_mutex/native_handle/1.cc: Likewise.
1366         * testsuite/30_threads/timed_mutex/native_handle/typesizes.cc:
1367         Likewise.
1368         * testsuite/30_threads/timed_mutex/requirements/
1369         standard_layout.cc: Likewise.
1370         * testsuite/30_threads/timed_mutex/requirements/typedefs.cc: Likewise.
1371         * testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
1372         * testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
1373         * testsuite/30_threads/timed_mutex/try_lock_for/1.cc: Likewise.
1374         * testsuite/30_threads/timed_mutex/try_lock_for/2.cc: Likewise.
1375         * testsuite/30_threads/timed_mutex/try_lock_for/3.cc: Likewise.
1376         * testsuite/30_threads/timed_mutex/try_lock_until/1.cc: Likewise.
1377         * testsuite/30_threads/timed_mutex/try_lock_until/2.cc: Likewise.
1378         * testsuite/30_threads/timed_mutex/try_lock_until/57641.cc: Likewise.
1379         * testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
1380         * testsuite/30_threads/timed_mutex/unlock/2.cc: Likewise.
1381         * testsuite/30_threads/try_lock/1.cc: Likewise.
1382         * testsuite/30_threads/try_lock/2.cc: Likewise.
1383         * testsuite/30_threads/try_lock/3.cc: Likewise.
1384         * testsuite/30_threads/try_lock/4.cc: Likewise.
1385         * testsuite/30_threads/unique_lock/cons/1.cc: Likewise.
1386         * testsuite/30_threads/unique_lock/cons/2.cc: Likewise.
1387         * testsuite/30_threads/unique_lock/cons/3.cc: Likewise.
1388         * testsuite/30_threads/unique_lock/cons/4.cc: Likewise.
1389         * testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
1390         * testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
1391         * testsuite/30_threads/unique_lock/locking/1.cc: Likewise.
1392         * testsuite/30_threads/unique_lock/locking/2.cc: Likewise.
1393         * testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
1394         * testsuite/30_threads/unique_lock/locking/4.cc: Likewise.
1395         * testsuite/30_threads/unique_lock/modifiers/1.cc: Likewise.
1396         * testsuite/30_threads/unique_lock/requirements/
1397         explicit_instantiation.cc: Likewise.
1398         * testsuite/30_threads/unique_lock/requirements/typedefs.cc: Likewise.
1399
1400         * testsuite/30_threads/async/42819.cc: Remove dg-require-cstdint
1401         directive.
1402         * testsuite/30_threads/async/49668.cc: Likewise.
1403         * testsuite/30_threads/async/54297.cc: Likewise.
1404         * testsuite/30_threads/async/84532.cc: Likewise.
1405         * testsuite/30_threads/async/any.cc: Likewise.
1406         * testsuite/30_threads/async/async.cc: Likewise.
1407         * testsuite/30_threads/async/except.cc: Likewise.
1408         * testsuite/30_threads/async/forced_unwind.cc: Likewise.
1409         * testsuite/30_threads/async/launch.cc: Likewise.
1410         * testsuite/30_threads/async/lwg2021.cc: Likewise.
1411         * testsuite/30_threads/async/sync.cc: Likewise.
1412         * testsuite/30_threads/call_once/39909.cc: Likewise.
1413         * testsuite/30_threads/call_once/49668.cc: Likewise.
1414         * testsuite/30_threads/call_once/60497.cc: Likewise.
1415         * testsuite/30_threads/call_once/call_once1.cc: Likewise.
1416         * testsuite/30_threads/call_once/constexpr.cc: Likewise.
1417         * testsuite/30_threads/call_once/dr2442.cc: Likewise.
1418         * testsuite/30_threads/call_once/once_flag.cc: Likewise.
1419         * testsuite/30_threads/condition_variable/54185.cc: Likewise.
1420         * testsuite/30_threads/condition_variable/cons/1.cc: Likewise.
1421         * testsuite/30_threads/condition_variable/cons/assign_neg.cc:
1422         Likewise.
1423         * testsuite/30_threads/condition_variable/cons/copy_neg.cc: Likewise.
1424         * testsuite/30_threads/condition_variable/members/1.cc: Likewise.
1425         * testsuite/30_threads/condition_variable/members/2.cc: Likewise.
1426         * testsuite/30_threads/condition_variable/members/3.cc: Likewise.
1427         * testsuite/30_threads/condition_variable/members/53841.cc: Likewise.
1428         * testsuite/30_threads/condition_variable/members/68519.cc: Likewise.
1429         * testsuite/30_threads/condition_variable/native_handle/typesizes.cc:
1430         Likewise.
1431         * testsuite/30_threads/condition_variable/requirements/
1432         standard_layout.cc: Likewise.
1433         * testsuite/30_threads/condition_variable/requirements/typedefs.cc:
1434         * Likewise.
1435         * testsuite/30_threads/condition_variable_any/50862.cc: Likewise.
1436         * testsuite/30_threads/condition_variable_any/53830.cc: Likewise.
1437         * testsuite/30_threads/condition_variable_any/cons/1.cc: Likewise.
1438         * testsuite/30_threads/condition_variable_any/cons/assign_neg.cc:
1439         Likewise.
1440         * testsuite/30_threads/condition_variable_any/cons/copy_neg.cc:
1441         Likewise.
1442         * testsuite/30_threads/condition_variable_any/members/1.cc: Likewise.
1443         * testsuite/30_threads/condition_variable_any/members/2.cc: Likewise.
1444         * testsuite/30_threads/future/cons/assign_neg.cc: Likewise.
1445         * testsuite/30_threads/future/cons/constexpr.cc: Likewise.
1446         * testsuite/30_threads/future/cons/copy_neg.cc: Likewise.
1447         * testsuite/30_threads/future/cons/default.cc: Likewise.
1448         * testsuite/30_threads/future/cons/move.cc: Likewise.
1449         * testsuite/30_threads/future/cons/move_assign.cc: Likewise.
1450         * testsuite/30_threads/future/members/45133.cc: Likewise.
1451         * testsuite/30_threads/future/members/get.cc: Likewise.
1452         * testsuite/30_threads/future/members/get2.cc: Likewise.
1453         * testsuite/30_threads/future/members/share.cc: Likewise.
1454         * testsuite/30_threads/future/members/valid.cc: Likewise.
1455         * testsuite/30_threads/future/members/wait.cc: Likewise.
1456         * testsuite/30_threads/future/members/wait_for.cc: Likewise.
1457         * testsuite/30_threads/future/members/wait_until.cc: Likewise.
1458         * testsuite/30_threads/future/requirements/explicit_instantiation.cc:
1459         Likewise.
1460         * testsuite/30_threads/headers/condition_variable/types_std_c++0x.cc:
1461         Likewise.
1462         * testsuite/30_threads/headers/future/types_std_c++0x.cc: Likewise.
1463         * testsuite/30_threads/headers/mutex/types_std_c++0x.cc: Likewise.
1464         * testsuite/30_threads/headers/thread/std_c++0x_neg.cc: Likewise.
1465         * testsuite/30_threads/headers/thread/types_std_c++0x.cc: Likewise.
1466         * testsuite/30_threads/lock/1.cc: Likewise.
1467         * testsuite/30_threads/lock/2.cc: Likewise.
1468         * testsuite/30_threads/lock/3.cc: Likewise.
1469         * testsuite/30_threads/lock/4.cc: Likewise.
1470         * testsuite/30_threads/lock_guard/cons/1.cc: Likewise.
1471         * testsuite/30_threads/lock_guard/requirements/
1472         explicit_instantiation.cc: Likewise.
1473         * testsuite/30_threads/lock_guard/requirements/typedefs.cc: Likewise.
1474         * testsuite/30_threads/mutex/cons/1.cc: Likewise.
1475         * testsuite/30_threads/mutex/cons/assign_neg.cc: Likewise.
1476         * testsuite/30_threads/mutex/cons/constexpr.cc: Likewise.
1477         * testsuite/30_threads/mutex/cons/copy_neg.cc: Likewise.
1478         * testsuite/30_threads/mutex/dest/destructor_locked.cc: Likewise.
1479         * testsuite/30_threads/mutex/lock/1.cc: Likewise.
1480         * testsuite/30_threads/mutex/native_handle/1.cc: Likewise.
1481         * testsuite/30_threads/mutex/native_handle/typesizes.cc: Likewise.
1482         * testsuite/30_threads/mutex/requirements/standard_layout.cc::
1483         Likewise.
1484         * testsuite/30_threads/mutex/requirements/typedefs.cc: Likewise.
1485         * testsuite/30_threads/mutex/try_lock/1.cc: Likewise.
1486         * testsuite/30_threads/mutex/try_lock/2.cc: Likewise.
1487         * testsuite/30_threads/mutex/unlock/1.cc: Likewise.
1488         * testsuite/30_threads/mutex/unlock/2.cc: Likewise.
1489         * testsuite/30_threads/once_flag/cons/constexpr.cc: Likewise.
1490         * testsuite/30_threads/packaged_task/49668.cc: Likewise.
1491         * testsuite/30_threads/packaged_task/60564.cc: Likewise.
1492         * testsuite/30_threads/packaged_task/cons/1.cc: Likewise.
1493         * testsuite/30_threads/packaged_task/cons/2.cc: Likewise.
1494         * testsuite/30_threads/packaged_task/cons/3.cc: Likewise.
1495         * testsuite/30_threads/packaged_task/cons/56492.cc: Likewise.
1496         * testsuite/30_threads/packaged_task/cons/alloc.cc: Likewise.
1497         * testsuite/30_threads/packaged_task/cons/alloc2.cc: Likewise.
1498         * testsuite/30_threads/packaged_task/cons/alloc_min.cc: Likewise.
1499         * testsuite/30_threads/packaged_task/cons/assign_neg.cc: Likewise.
1500         * testsuite/30_threads/packaged_task/cons/copy_neg.cc: Likewise.
1501         * testsuite/30_threads/packaged_task/cons/move.cc: Likewise.
1502         * testsuite/30_threads/packaged_task/cons/move_assign.cc: Likewise.
1503         * testsuite/30_threads/packaged_task/members/at_thread_exit.cc:
1504         Likewise.
1505         * testsuite/30_threads/packaged_task/members/get_future.cc: Likewise.
1506         * testsuite/30_threads/packaged_task/members/get_future2.cc: Likewise.
1507         * testsuite/30_threads/packaged_task/members/invoke.cc: Likewise.
1508         * testsuite/30_threads/packaged_task/members/invoke2.cc: Likewise.
1509         * testsuite/30_threads/packaged_task/members/invoke3.cc: Likewise.
1510         * testsuite/30_threads/packaged_task/members/invoke4.cc: Likewise.
1511         * testsuite/30_threads/packaged_task/members/invoke5.cc: Likewise.
1512         * testsuite/30_threads/packaged_task/members/reset.cc: Likewise.
1513         * testsuite/30_threads/packaged_task/members/reset2.cc: Likewise.
1514         * testsuite/30_threads/packaged_task/members/swap.cc: Likewise.
1515         * testsuite/30_threads/packaged_task/members/valid.cc: Likewise.
1516         * testsuite/30_threads/packaged_task/requirements/
1517         explicit_instantiation.cc: Likewise.
1518         * testsuite/30_threads/packaged_task/uses_allocator.cc: Likewise.
1519         * testsuite/30_threads/promise/60966.cc: Likewise.
1520         * testsuite/30_threads/promise/69106.cc: Likewise.
1521         * testsuite/30_threads/promise/cons/1.cc: Likewise.
1522         * testsuite/30_threads/promise/cons/alloc.cc: Likewise.
1523         * testsuite/30_threads/promise/cons/alloc2.cc: Likewise.
1524         * testsuite/30_threads/promise/cons/alloc_min.cc: Likewise.
1525         * testsuite/30_threads/promise/cons/assign_neg.cc: Likewise.
1526         * testsuite/30_threads/promise/cons/copy_neg.cc: Likewise.
1527         * testsuite/30_threads/promise/cons/move.cc: Likewise.
1528         * testsuite/30_threads/promise/cons/move_assign.cc: Likewise.
1529         * testsuite/30_threads/promise/members/at_thread_exit.cc: Likewise.
1530         * testsuite/30_threads/promise/members/at_thread_exit2.cc: Likewise.
1531         * testsuite/30_threads/promise/members/get_future.cc: Likewise.
1532         * testsuite/30_threads/promise/members/get_future2.cc: Likewise.
1533         * testsuite/30_threads/promise/members/set_exception.cc: Likewise.
1534         * testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
1535         * testsuite/30_threads/promise/members/set_value.cc: Likewise.
1536         * testsuite/30_threads/promise/members/set_value2.cc: Likewise.
1537         * testsuite/30_threads/promise/members/set_value3.cc: Likewise.
1538         * testsuite/30_threads/promise/members/swap.cc: Likewise.
1539         * testsuite/30_threads/promise/requirements/explicit_instantiation.cc:
1540         * Likewise.
1541         * testsuite/30_threads/promise/uses_allocator.cc: Likewise.
1542
1543         * testsuite/18_support/numeric_limits/char16_32_t.cc: Qualify names
1544         from namespace std.
1545         * testsuite/20_util/align/2.cc: Remove dg-require-cstdint directive.
1546         * testsuite/20_util/duration/arithmetic/1.cc: Likewise.
1547         * testsuite/20_util/duration/arithmetic/2.cc: Likewise.
1548         * testsuite/20_util/duration/arithmetic/dr2020.cc: Likewise.
1549         * testsuite/20_util/duration/arithmetic/dr934-1.cc: Likewise.
1550         * testsuite/20_util/duration/arithmetic/dr934-2.cc: Likewise.
1551         * testsuite/20_util/duration/comparison_operators/1.cc: Likewise.
1552         * testsuite/20_util/duration/cons/1.cc: Likewise.
1553         * testsuite/20_util/duration/cons/1_neg.cc: Likewise.
1554         * testsuite/20_util/duration/cons/2.cc: Likewise.
1555         * testsuite/20_util/duration/cons/54025.cc: Likewise.
1556         * testsuite/20_util/duration/cons/dr974_neg.cc: Likewise.
1557         * testsuite/20_util/duration/requirements/explicit_instantiation/
1558         explicit_instantiation.cc: Likewise.
1559         * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
1560         * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
1561         * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
1562         * testsuite/20_util/make_signed/requirements/typedefs-4.cc: Likewise.
1563         * testsuite/20_util/ratio/comparisons/comp1.cc: Likewise.
1564         * testsuite/20_util/ratio/comparisons/comp2.cc: Likewise.
1565         * testsuite/20_util/ratio/comparisons/comp3.cc: Likewise.
1566         * testsuite/20_util/ratio/cons/cons1.cc: Likewise.
1567         * testsuite/20_util/ratio/operations/45866.cc: Likewise.
1568         * testsuite/20_util/ratio/operations/47913.cc: Likewise.
1569         * testsuite/20_util/ratio/operations/53840.cc: Likewise.
1570         * testsuite/20_util/ratio/operations/ops1.cc: Likewise.
1571         * testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
1572         * testsuite/20_util/system_clock/1.cc: Likewise.
1573         * testsuite/20_util/time_point/1.cc: Likewise.
1574         * testsuite/20_util/time_point/2.cc: Likewise.
1575         * testsuite/20_util/time_point/3.cc: Likewise.
1576         * testsuite/20_util/time_point/requirements/explicit_instantiation/
1577         explicit_instantiation.cc: Likewise.
1578         * testsuite/21_strings/basic_string/requirements/
1579         explicit_instantiation/char16_t/1.cc: Likewise.
1580         * testsuite/21_strings/basic_string/requirements/
1581         explicit_instantiation/char32_t/1.cc: Likewise.
1582         * testsuite/21_strings/basic_string_view/requirements/
1583         explicit_instantiation/char16_t/1.cc: Likewise.
1584         * testsuite/21_strings/basic_string_view/requirements/
1585         explicit_instantiation/char32_t/1.cc: Likewise.
1586         * testsuite/21_strings/char_traits/requirements/
1587         explicit_instantiation/char16_t/1.cc: Likewise.
1588         * testsuite/21_strings/char_traits/requirements/
1589         explicit_instantiation/char32_t/1.cc: Likewise.
1590         * testsuite/21_strings/headers/string/types_std_c++0x.cc: Likewise.
1591         * testsuite/22_locale/codecvt/char16_t.cc: Likewise.
1592         * testsuite/22_locale/codecvt/char32_t.cc: Likewise.
1593         * testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc:
1594         Likewise.
1595         * testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc:
1596         Likewise.
1597         * testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc:
1598         Likewise.
1599         * testsuite/22_locale/codecvt/utf8.cc: Likewise.
1600         * testsuite/23_containers/vector/bool/72847.cc: Likewise.
1601         * testsuite/23_containers/vector/debug/multithreaded_swap.cc:
1602         Likewise.
1603         * testsuite/experimental/string_view/requirements/
1604         explicit_instantiation/char16_t/1.cc: Likewise.
1605         * testsuite/experimental/string_view/requirements/
1606         explicit_instantiation/char32_t/1.cc: Likewise.
1607         * testsuite/ext/vstring/requirements/explicit_instantiation/char16_t/
1608         1.cc: Likewise.
1609         * testsuite/ext/vstring/requirements/explicit_instantiation/char32_t/
1610         1.cc: Likewise.
1611
1612         * include/ext/throw_allocator.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1613         (random_condition, throw_value_random, throw_allocator_random)
1614         (std::hash<throw_value_random>): Do not define when <tr1/random> is
1615         not usable.
1616         * src/c++11/cow-stdexcept.cc [!_GLIBCXX_USE_C99_STDINT_TR1]: Do not
1617         define transactional memory support when <stdint.h> is not usable.
1618
1619         * include/bits/hashtable_policy.h (__detail::__clp2): Use faster
1620         implementation that doesn't depend on <stdint.h> types.
1621         * include/std/memory (align) [!_GLIBCXX_USE_C99_STDINT_TR1]: Use
1622         std::size_t when std::uintptr_t is not usable.
1623         [!_GLIBCXX_USE_C99_STDINT_TR1] (pointer_safety, declare_reachable)
1624         (undeclare_reachable, declare_no_pointers, undeclare_no_pointers):
1625         Define independent of _GLIBCXX_USE_C99_STDINT_TR1.
1626
1627         * include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1628         (hash<u16string>, hash<u32string>): Remove dependency on
1629         _GLIBCXX_USE_C99_STDINT_TR1.
1630         * include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1631         (char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
1632         _GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
1633         __UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
1634         * include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1635         (codecvt<char16_t, char, mbstate_t>)
1636         (codecvt<char32_t, char, mbstate_t>)
1637         (codecvt_byname<char16_t, char, mbstate_t>)
1638         (codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
1639         on _GLIBCXX_USE_C99_STDINT_TR1.
1640         * include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1641         (_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
1642         * include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1643         (char_traits<char16_t>, char_traits<char32_t>)
1644         (basic_string<char16_t>, basic_string<char32_t>): Remove dependency
1645         on _GLIBCXX_USE_C99_STDINT_TR1.
1646         * include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
1647         (u16string_view, u32string_view, hash<u16string_view>)
1648         (hash<u32string_view>, operator""sv(const char16_t, size_t))
1649         (operator""sv(const char32_t, size_t)): Likewise.
1650         * include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1651         (hash<__u16vstring>, hash<__u32vstring>): Likewise.
1652         * include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1653         (__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
1654         (__u32sso_string, __u32rc_string): Likewise.
1655         * include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
1656         (codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
1657         * include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
1658         (u16string_view, u32string_view, hash<u16string_view>)
1659         (hash<u32string_view>, operator""sv(const char16_t, size_t))
1660         (operator""sv(const char32_t, size_t)): Likewise.
1661         * src/c++11/codecvt.cc: Likewise.
1662         * src/c++98/locale_init.cc: Likewise.
1663         * src/c++98/localename.cc: Likewise.
1664
1665         * include/bits/atomic_futex.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1666         (__atomic_futex_unsigned_base): Remove dependency on
1667         _GLIBCXX_USE_C99_STDINT_TR1 macro.
1668         * include/bits/unique_lock.h [!_GLIBCXX_USE_C99_STDINT_TR1]
1669         (unique_lock): Remove dependency on _GLIBCXX_USE_C99_STDINT_TR1.
1670         * include/c_global/cstdint [!_GLIBCXX_USE_C99_STDINT_TR1] (intmax_t)
1671         (uintmax_t): Define using predefined macros.
1672         * include/std/chrono [!_GLIBCXX_USE_C99_STDINT_TR1] (duration)
1673         (time_point, system_clock, high_resolution_clock, steady_clock): Remove
1674         dependency on _GLIBCXX_USE_C99_STDINT_TR1 macro.
1675         (nanoseconds, microseconds, milliseconds, seconds, minutes, hours):
1676         [!_GLIBCXX_USE_C99_STDINT_TR1]: Define using __INT64_TYPE__ or
1677         long long when <stdint.h> is not usable.
1678         * include/std/condition_variable [!_GLIBCXX_USE_C99_STDINT_TR1]
1679         (condition_variable, condition_variable_any): Remove dependency on
1680         _GLIBCXX_USE_C99_STDINT_TR1.
1681         * include/std/future [!_GLIBCXX_USE_C99_STDINT_TR1] (future, promise)
1682         (packaged_task, async): Likewise.
1683         * include/std/mutex [!_GLIBCXX_USE_C99_STDINT_TR1] (recursive_mutex)
1684         (timed_mutex, recursive_timed_mutex, try_lock, lock, scoped_lock)
1685         (once_flag, call_once): Likewise.
1686         * include/std/ratio [!_GLIBCXX_USE_C99_STDINT_TR1] (ratio): Likewise.
1687         * include/std/shared_mutex [!_GLIBCXX_USE_C99_STDINT_TR1]
1688         (shared_mutex, shared_timed_mutex, shared_lock): Likewise.
1689         * include/std/thread [!_GLIBCXX_USE_C99_STDINT_TR1] (thread)
1690         (this_thread::get_id, this_thread::yield, this_thread::sleep_for)
1691         (this_thread::sleep_until): Likewise.
1692         * src/c++11/chrono.cc: Remove dependency on
1693         _GLIBCXX_USE_C99_STDINT_TR1 macro.
1694         * src/c++11/condition_variable.cc: Likewise.
1695         * src/c++11/futex.cc: Likewise.
1696         * src/c++11/future.cc: Likewise.
1697         * src/c++11/mutex.cc: Likewise.
1698         * src/c++11/thread.cc: Likewise.
1699         * testsuite/20_util/duration/literals/range_neg.cc: Adjust dg-error.
1700         * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
1701         * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
1702         * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
1703         * testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Likewise.
1704         * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Likewise.
1705
1706 2018-07-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1707
1708         PR libstdc++/77691
1709         * testsuite/experimental/memory_resource/new_delete_resource.cc:
1710         xfail execution on 32-bit Solaris/x86.
1711
1712 2018-07-26  Marc Glisse  <marc.glisse@inria.fr>
1713
1714         * include/bits/stl_vector.h (_Vector_impl_data::_M_copy_data): New.
1715         (_Vector_impl_data::_M_swap_data): Use _M_copy_data.
1716         (vector::_M_move_assign): Reorder the swaps.
1717
1718 2018-07-26  Jonathan Wakely  <jwakely@redhat.com>
1719
1720         PR libstdc++/86676
1721         * testsuite/20_util/monotonic_buffer_resource/release.cc: Request
1722         same alignment for post-release allocation.
1723
1724 2018-07-25  Jonathan Wakely  <jwakely@redhat.com>
1725
1726         PR libstdc++/86676
1727         * testsuite/20_util/monotonic_buffer_resource/release.cc: Allow for
1728         buffer being misaligned and so returned pointer not being at start.
1729
1730         * include/experimental/memory_resource: Include <cstddef> header.
1731
1732         * acinclude.m4 (glibcxx_SUBDIRS): Add src/c++17.
1733         * src/Makefile.am: Add comment.
1734         * src/c++17/Makefile.in: Regenerate.
1735
1736         * include/Makefile.am: Add new <bits/unique_lock.h> header.
1737         * include/Makefile.in: Regenerate.
1738         * include/bits/std_mutex.h [!_GLIBCXX_USE_C99_STDINT_TR1] (mutex)
1739         (lock_guard): Define independent of _GLIBCXX_USE_C99_STDINT_TR1.
1740         (unique_lock): Move definition to ...
1741         * include/bits/unique_lock.h: New header.
1742         [!_GLIBCXX_USE_C99_STDINT_TR1] (unique_lock): Define unconditionally.
1743         [_GLIBCXX_USE_C99_STDINT_TR1] (unique_lock(mutex_type&, time_point))
1744         (unique_lock(mutex_type&, duration), unique_lock::try_lock_until)
1745         (unique_lock::try_lock_for): Define only when <chrono> is usable.
1746         * include/std/condition_variable: Include <bits/unique_lock.h>.
1747         * include/std/mutex: Likewise.
1748
1749 2018-07-24  Jonathan Wakely  <jwakely@redhat.com>
1750
1751         * config/abi/pre/gnu.ver: Export new symbols.
1752         * configure: Regenerate.
1753         * include/Makefile.am: Add new <memory_resource> header.
1754         * include/Makefile.in: Regenerate.
1755         * include/precompiled/stdc++.h: Include <memory_resource> for C++17.
1756         * include/std/memory_resource: New header.
1757         (memory_resource, polymorphic_allocator, new_delete_resource)
1758         (null_memory_resource, set_default_resource, get_default_resource)
1759         (pool_options, monotonic_buffer_resource): Define.
1760         * src/Makefile.am: Add c++17 directory.
1761         * src/Makefile.in: Regenerate.
1762         * src/c++11/Makefile.am: Fix comment.
1763         * src/c++17/Makefile.am: Add makefile for new sub-directory.
1764         * src/c++17/Makefile.in: Generate.
1765         * src/c++17/memory_resource.cc: New.
1766         (newdel_res_t, null_res_t, constant_init, newdel_res, null_res)
1767         (default_res, new_delete_resource, null_memory_resource)
1768         (set_default_resource, get_default_resource): Define.
1769         * testsuite/20_util/memory_resource/1.cc: New test.
1770         * testsuite/20_util/memory_resource/2.cc: New test.
1771         * testsuite/20_util/monotonic_buffer_resource/1.cc: New test.
1772         * testsuite/20_util/monotonic_buffer_resource/allocate.cc: New test.
1773         * testsuite/20_util/monotonic_buffer_resource/deallocate.cc: New test.
1774         * testsuite/20_util/monotonic_buffer_resource/release.cc: New test.
1775         * testsuite/20_util/monotonic_buffer_resource/upstream_resource.cc:
1776         New test.
1777         * testsuite/20_util/polymorphic_allocator/1.cc: New test.
1778         * testsuite/20_util/polymorphic_allocator/resource.cc: New test.
1779         * testsuite/20_util/polymorphic_allocator/select.cc: New test.
1780         * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
1781         Define concrete memory resource for testing.
1782         (__gnu_test::default_resource_mgr): Define RAII helper for changing
1783         default resource.
1784
1785         PR libstdc++/86658
1786         * include/bits/stl_algobase.h (__niter_wrap<_Iterator>): Pass unused
1787         parameter by reference, to avoid copying invalid iterators.
1788         * testsuite/25_algorithms/copy/86658.cc: New test.
1789
1790         * include/std/bit (__countl_zero, __countr_zero, __popcount): Use
1791         local variables for number of digits instead of type aliases.
1792         (__log2p1): Remove redundant branch also checked in __countl_zero.
1793
1794         * include/bits/uses_allocator.h (__is_erased_or_convertible): Reorder
1795         conditions. Add comments.
1796         * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error line.
1797         * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
1798         * testsuite/20_util/scoped_allocator/69293_neg.cc: Likewise.
1799
1800         * include/bits/uses_allocator.h (__is_erased_or_convertible): Remove.
1801         (__uses_allocator_helper): Check conditions directly instead of
1802         using __is_erased_or_convertible.
1803
1804         * include/experimental/memory_resource: Adjust comments and
1805         whitespace.
1806         (__resource_adaptor_imp): Add second template parameter for type of
1807         memory resource base class.
1808         (memory_resource): Define default constructor, destructor, copy
1809         constructor and copy assignment operator as defaulted.
1810
1811         PR libstdc++/70966
1812         * include/experimental/memory_resource (__get_default_resource): Use
1813         placement new to create an object with dynamic storage duration.
1814
1815 2018-07-23  Jonathan Wakely  <jwakely@redhat.com>
1816
1817         PR libstdc++/70940
1818         * include/experimental/memory_resource
1819         (__resource_adaptor_common::_AlignMgr::_M_unadjust): Add assertion.
1820         (__resource_adaptor_common::__guaranteed_alignment): New helper to
1821         give maximum alignment an allocator guarantees. Specialize for known
1822         allocators using new and malloc.
1823         (__resource_adaptor_imp::do_allocate): Use __guaranteed_alignment.
1824         (__resource_adaptor_imp::do_deallocate): Likewise.
1825         * testsuite/experimental/memory_resource/new_delete_resource.cc:
1826         Check that new and delete are called with expected sizes.
1827
1828 2018-07-20  Jonathan Wakely  <jwakely@redhat.com>
1829
1830         PR libstdc++/86595
1831         * include/bits/fs_dir.h (directory_entry::refresh(error_code&)): Add
1832         noexcept.
1833
1834 2018-07-20  Fangrui Song  <maskray@google.com>
1835
1836         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Use
1837         _GLIBCXX_VISIBILITY(default).
1838
1839 2018-07-20  Jonathan Wakely  <jwakely@redhat.com>
1840
1841         PR libstdc++/86603
1842         * include/std/version: Move __cpp_lib_list_remove_return_type macro.
1843
1844 2018-07-19  Jonathan Wakely  <jwakely@redhat.com>
1845
1846         * include/std/type_traits (__is_member_object_pointer_helper): Use
1847         __not_<is_function<_Tp>>::type instead of integral_constant.
1848         (__is_member_function_pointer_helper): Likewise for
1849         is_function<_Tp>::type.
1850         (is_compund): Likewise for __not_<is_fundamental<_Tp>>::type.
1851         (__do_is_nt_destructible_impl): Use __bool_constant and reindent.
1852         (is_trivially_constructible): Remove redundant use of
1853         is_constructible.
1854         (__is_trivially_copy_assignable_impl): Remove redundant use of
1855         is_copy_assignable.
1856         (__is_trivially_move_assignable_impl): Remove redundant use of
1857         is_move_assignable.
1858         (is_trivially_destructible): Use __bool_constant.
1859         * testsuite/20_util/is_trivially_assignable/value.cc: Add some more
1860         tests for scalar types.
1861
1862 2018-07-19  Glen Joseph Fernandes  <glenjofe@gmail.com>
1863
1864         * include/bits/stl_algobase.h (__copy_move_a): Used
1865         __is_trivially_copyable.
1866         (__copy_move_backward_a): Likewise.
1867         * testsuite/20_util/specialized_algorithms/uninitialized_copy/1.cc:
1868         New test.
1869
1870 2018-07-17  Jonathan Wakely  <jwakely@redhat.com>
1871
1872         PR libstdc++/86450
1873         * acinclude.m4 (GLIBCXX_CHECK_COMPILER_FEATURES): Don't define WERROR.
1874         (GLIBCXX_EXPORT_FLAGS): Use -Wabi=2 instead of -Wabi.
1875         * configure: Regenerate.
1876         * configure.ac: Change GLIBCXX_ENABLE_WERROR default to "no".
1877         * doc/Makefile.in: Regenerate.
1878         * fragment.am: Set WERROR_FLAG to -Werror instead of $(WERROR).
1879         * include/Makefile.in: Regenerate.
1880         * libsupc++/Makefile.in: Regenerate.
1881         * po/Makefile.in: Regenerate.
1882         * python/Makefile.in: Regenerate.
1883         * src/Makefile.in: Regenerate.
1884         * src/c++11/Makefile.in: Regenerate.
1885         * src/c++11/debug.cc: Use diagnostic pragmas to suppress warnings
1886         from -Wabi=2 that don't affect exported symbols.
1887         * src/c++98/Makefile.in: Regenerate.
1888         * src/filesystem/Makefile.in: Regenerate.
1889         * testsuite/Makefile.in: Regenerate.
1890
1891         * src/c++11/compatibility-thread-c++0x.cc [_GLIBCXX_SHARED]
1892         (_Async_state_common::_M_join): Simplify use of std::call_once and
1893         corresponding explicit instantiation.
1894         (_Maybe_wrap_member_pointer, _Bind_simple, _Bind_simple_helper)
1895         (__bind_simple): Remove definitions and explicit instantiation that
1896         are not required by exported symbols.
1897
1898 2018-07-16  Jonathan Wakely  <jwakely@redhat.com>
1899
1900         * scripts/create_testsuite_files: Fix typo in comment.
1901
1902         PR libstdc++/86537
1903         * include/bits/shared_ptr.h (less<shared_ptr<_Tp>>): Remove
1904         non-standard partial specialization.
1905         * include/bits/shared_ptr_base.h (_Sp_less): Remove class definition.
1906         (less<__shared_ptr<_Tp, _Lp>): Remove partial specialization.
1907         * testsuite/20_util/shared_ptr/comparison/86537.cc: New test.
1908
1909 2018-07-16  Andreas Krebbel  <krebbel@linux.ibm.com>
1910
1911         * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update.
1912         * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Update.
1913         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1914
1915 2018-07-06  François Dumont  <fdumont@gcc.gnu.org>
1916
1917         * include/debug/functions.h (__gnu_debug::__check_string): Move...
1918         * include/debug/string (__gnu_debug::__check_string): ... here.
1919         (_GLIBCXX_DEBUG_VERIFY_STR_COND_AT): New.
1920         (__glibcxx_check_string_n_constructor): New.
1921         (__gnu_debug::basic_string<>(const _CharT*, size_type, const _Alloc&)):
1922         Use latter.
1923         (__glibcxx_check_string_constructor): New.
1924         (__gnu_debug::basic_string<>(const _CharT*, const _Alloc&)):
1925         Use latter.
1926         * testsuite/21_strings/basic_string/debug/1_neg.cc: New.
1927         * testsuite/21_strings/basic_string/debug/2_neg.cc: New.
1928
1929 2018-07-06  Jonathan Wakely  <jwakely@redhat.com>
1930
1931         PR libstdc++/84928 use std::move in <numeric> algorithms
1932         * include/bits/stl_numeric.h (_GLIBCXX_MOVE_IF_20): Define macro to
1933         conditionally move, according to __cplusplus value.
1934         (accumulate, inner_product, partial_sum, adjacent_difference): Use
1935         _GLIBCXX_MOVE_IF_20.
1936         * testsuite/26_numerics/accumulate/lwg2055.cc: New test.
1937         * testsuite/26_numerics/adjacent_difference/lwg2055.cc: New test.
1938         * testsuite/26_numerics/inner_product/lwg2055.cc: New test.
1939         * testsuite/26_numerics/partial_sum/lwg2055.cc: New test.
1940
1941         * config/abi/pre/gnu.ver: Use wildcards to combine related patterns.
1942
1943         P0935R0 Eradicating unnecessarily explicit default constructors
1944         * config/abi/pre/gnu.ver: Tighten existing patterns and export new
1945         default constructor symbols.
1946         * include/std/sstream (basic_stringbuf, basic_istringstream)
1947         (basic_ostringstream, basic_stringstream): Remove default arguments
1948         from explicit constructors taking ios_base::openmode and add separate
1949         non-explicit default constructors.
1950         * testsuite/27_io/basic_istringstream/cons/default.cc: New.
1951         * testsuite/27_io/basic_ostringstream/cons/default.cc: New.
1952         * testsuite/27_io/basic_stringstream/cons/default.cc: New.
1953         * testsuite/27_io/basic_stringbuf/cons/char/default.cc: New.
1954         * testsuite/27_io/basic_stringbuf/cons/wchar_t/default.cc: New.
1955
1956         * include/std/variant (__accepted_index): Use void_t.
1957
1958 2018-07-05  Jonathan Wakely  <jwakely@redhat.com>
1959
1960         PR libstdc++/85831
1961         * config/abi/pre/gnu.ver: Export move constructors and move
1962         assignment operators for std::logic_error and std::runtime_error.
1963         * include/std/stdexcept: Use _GLIBCXX_NOTHROW instead of
1964         _GLIBCXX_USE_NOEXCEPT.
1965         (logic_error, runtime_error): Declare move constructors and move
1966         assignment operators. When not declared already, define copy
1967         constructors and copy assignment operators as explicit-defaulted.
1968         (domain_error, invalid_argument, length_error, out_of_range)
1969         (overflow_error, underflow_error): Define move constructors and move
1970         assignment operators as explicitly-defaulted.
1971         * libsupc++/exception.h (exception): Likewise.
1972         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Define
1973         move constructors and move assignment operators as defaulted.
1974         * testsuite/19_diagnostics/stdexcept.cc: Check that constructors and
1975         assignment operators are defined.
1976
1977         * testsuite/21_strings/basic_string/cons/char/deduction.cc: XFAIL for
1978         COW strings.
1979         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
1980         Likewise.
1981         * testsuite/21_strings/basic_string/requirements/
1982         explicit_instantiation/debug.cc: Likewise.
1983
1984         PR libstdc++/58265
1985         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
1986         (basic_string::assign(basic_string&&)): Add conditional noexcept
1987         depending on the allocator's is_always_equal property (LWG 2063).
1988         * testsuite/21_strings/basic_string/modifiers/assign/char/
1989         move_assign.cc: Check for non-throwing exception specification.
1990         * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
1991         move_assign.cc: Likewise.
1992
1993         PR libstdc++/58265
1994         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
1995         [_GLIBCXX_FULLY_DYNAMIC_STRING==0] (basic_string::basic_string()):
1996         Add GLIBCXX_NOEXCEPT.
1997         (basic_string::operator=(basic_string&&)): Add _GLIBCXX_NOEXCEPT_IF
1998         to depend on the allocator's is_always_equal property (LWG 2063).
1999         (basic_string::swap(basic_string&)): Likewise.
2000         * include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI]
2001         (basic_string::swap(basic_string&)): Likewise.
2002         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc:
2003         Check is_nothrow_move_assignable.
2004         * testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc:
2005         Check is_nothrow_move_assignable.
2006         * testsuite/21_strings/basic_string/cons/char/
2007         noexcept_move_construct.cc: Likewise.
2008         * testsuite/21_strings/basic_string/cons/wchar_t/
2009         noexcept_move_construct.cc: Likewise.
2010
2011 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
2012
2013         P0646R1 Improving the Return Value of Erase-Like Algorithms I
2014         * include/bits/forward_list.h (__cpp_lib_list_remove_return_type):
2015         Define.
2016         (forward_list::__remove_return_type): Define typedef as size_type or
2017         void, according to __cplusplus value.
2018         (_GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
2019         empty, according to __cplusplus value.
2020         (forward_list::remove, forward_list::unique): Use typedef and macro
2021         to change return type and add abi-tag for C++2a.
2022         (forward_list::remove_if<Pred>, forward_list::unique<BinPred>): Use
2023         typedef to change return type for C++2a.
2024         * include/bits/forward_list.tcc (_GLIBCXX20_ONLY): Define macro.
2025         (forward_list::remove, forward_list::remove_if<Pred>)
2026         (forward_list::unique<BinPred>): Return number of removed elements
2027         for C++2a.
2028         * include/bits/list.tcc (_GLIBCXX20_ONLY): Define macro.
2029         (list::remove, list::unique, list::remove_if<Predicate>)
2030         (list::unique<BinaryPredicate>): Return number of removed elements
2031         for C++2a.
2032         * include/bits/stl_list.h (__cpp_lib_list_remove_return_type): Define.
2033         (list::__remove_return_type): Define typedef as size_type or
2034         void, according to __cplusplus value.
2035         (_GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
2036         empty, according to __cplusplus value.
2037         (list::remove, list::unique): Use typedef and macro to change return
2038         type and add abi-tag for C++2a.
2039         (list::remove_if<Predicate>, list::unique<BinaryPredicate>): Use
2040         typedef to change return type for C++2a.
2041         * include/std/version (__cpp_lib_list_remove_return_type): Define.
2042         * testsuite/23_containers/forward_list/operations/
2043         remove_cxx20_return.cc: New.
2044         * testsuite/23_containers/forward_list/operations/
2045         unique_cxx20_return.cc: New.
2046
2047         P0458R2 Checking for Existence of an Element in Associative Containers
2048         * include/bits/stl_map.h (map::contains): Add for C++2a.
2049         * include/bits/stl_multimap.h (multimap::contains): Likewise.
2050         * include/bits/stl_multiset.h (multiset::contains): Likewise.
2051         * include/bits/stl_set.h (set::contains): Likewise.
2052         * include/bits/stl_tree.h (__has_is_transparent_t): Define alias.
2053         (_Rb_tree::_M_find_tr, _Rb_tree::_M_count_tr)
2054         (_Rb_tree::_M_lower_bound_tr, _Rb_tree::_M_upper_bound_tr)
2055         (_Rb_tree::_M_equal_range_tr): Use __has_is_transparent_t.
2056         * include/bits/unordered_map.h (unordered_map::contains)
2057         (unordered_multimap::contains): Add for C++2a.
2058         * include/bits/unordered_set.h (unordered_set::contains)
2059         (unordered_multiset::contains): Likewise.
2060         * testsuite/23_containers/map/operations/contains.cc: New.
2061         * testsuite/23_containers/multimap/operations/contains.cc: New.
2062         * testsuite/23_containers/multiset/operations/contains.cc: New.
2063         * testsuite/23_containers/set/operations/contains.cc: New.
2064         * testsuite/23_containers/unordered_map/operations/contains.cc: New.
2065         * testsuite/23_containers/unordered_multimap/operations/contains.cc:
2066         New.
2067         * testsuite/23_containers/unordered_multiset/operations/contains.cc:
2068         New.
2069         * testsuite/23_containers/unordered_set/operations/contains.cc: New.
2070
2071 2018-07-04  François Dumont  <fdumont@gcc.gnu.org>
2072
2073         PR libstdc++/86272
2074         * include/debug/string
2075         (__gnu_debug::basic_string<>::insert<_Ite>(const_iterator, _Ite, _Ite)):
2076         Use __glibcxx_check_insert_range.
2077         * 21_strings/basic_string/cons/char/1.cc: Adapt test to use
2078         __gnu_debug::string when _GLIBCXX_DEBUG.
2079         * 21_strings/basic_string/init-list.cc: Likewise.
2080         * 21_strings/basic_string/modifiers/insert/char/1.cc: Likewise.
2081         * 21_strings/basic_string/modifiers/insert/char/2.cc: Likewise.
2082         * 21_strings/basic_string/modifiers/insert/char/83328.cc: Likewise.
2083         * 21_strings/basic_string/types/1.cc: Likewise.
2084
2085 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
2086
2087         * testsuite/25_algorithms/make_heap/complexity.cc: Require effective
2088         target for std::random_device.
2089         * testsuite/26_numerics/random/random_device/cons/default.cc:
2090         Likewise.
2091         * testsuite/experimental/algorithm/sample-2.cc: Likewise.
2092         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
2093         * testsuite/experimental/random/randint.cc: Likewise.
2094         * testsuite/lib/libstdc++.exp
2095         (check_effective_target_random_device): New proc.
2096
2097 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
2098             Jakub Jelinek  <jakub@redhat.com>
2099
2100         * include/std/bit (__rotl, __rotr): Fix for non-power of two sizes.
2101
2102 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
2103
2104         PR libstdc++/86398
2105         * include/std/type_traits (is_trivially_constructible): Check
2106         is_constructible before __is_trivially_constructible.
2107         * testsuite/20_util/is_trivially_constructible/value.cc: Add more
2108         tests, including negative cases.
2109         * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Use
2110         zero for dg-error lineno.
2111         * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
2112         Likewise.
2113
2114         * include/std/bit (__rotl, __rotr): Avoid branch.
2115         (_If_is_unsigned_integer): Use remove_cv_t.
2116         * testsuite/26_numerics/bit/bitops.count/popcount.cc: New.
2117
2118 2018-07-03  Jonathan Wakely  <jwakely@redhat.com>
2119
2120         P0556R3 Integral power-of-2 operations, P0553R2 Bit operations
2121         * include/Makefile.am: Add new header.
2122         * include/Makefile.in: Regenerate.
2123         * include/precompiled/stdc++.h: Include new header.
2124         * include/std/bit: New header.
2125         (__rotl, __rotr, __countl_zero, __countl_one, __countr_zero)
2126         (__countr_one, __popcount, __ispow2, __ceil2, __floor2, __log2p1):
2127         Define for C++14.
2128         [!__STRICT_ANSI__] (rotl, rotr, countl_zero, countl_one, countr_zero)
2129         (countr_one, popcount): Define for C++2a. Also overload for std::byte.
2130         (ispow2, ceil2, floor2, log2p1): Define for C++2a.
2131         [!__STRICT_ANSI__] (ispow2, ceil2, floor2, log2p1): Overload for
2132         std::byte.
2133         * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: New.
2134         * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: New.
2135         * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: New.
2136         * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: New.
2137         * testsuite/26_numerics/bit/bitops.rot/rotl.cc: New.
2138         * testsuite/26_numerics/bit/bitops.rot/rotr.cc: New.
2139         * testsuite/26_numerics/bit/bitops.count/countl_one.cc: New.
2140         * testsuite/26_numerics/bit/bitops.count/countl_zero.cc: New.
2141         * testsuite/26_numerics/bit/bitops.count/countr_one.cc: New.
2142         * testsuite/26_numerics/bit/bitops.count/countr_zero.cc: New.
2143
2144         * include/bits/alloc_traits.h: Remove redundant preprocessor
2145         condition.
2146
2147 2018-07-03  François Dumont  <fdumont@gcc.gnu.org>
2148
2149         * include/bits/stl_algobase.h (__niter_wrap): New.
2150         (__copy_move_a2(_II, _II, _OI)): Use latter.
2151         (__copy_move_backward_a2(_BI1, _BI1, _BI2)): Likewise.
2152         (fill_n(_OI, _Size, const _Tp&)): Likewise.
2153         (equal(_II1, _II1, _II2)): Use __glibcxx_requires_can_increment.
2154         * include/debug/stl_iterator.h
2155         (std::__niter_base(const __gnu_cxx::_Safe_iterator<
2156         __gnu_cxx::__normal_iterator<>, _Sequence>&)): New declaration.
2157         * include/debug/vector (__niter_base(const __gnu_cxx::_Safe_iterator<
2158         __gnu_cxx::__normal_iterator<>, _Sequence>&)): New.
2159
2160 2018-07-02  Jonathan Wakely  <jwakely@redhat.com>
2161
2162         P0758R1 Implicit conversion traits
2163         * include/std/type_traits [__cplusplus > 201703]
2164         (__is_convertible_helper::__is_nothrow_type): Define new member.
2165         (__is_convertible_helper<_From, _To, false>::__test_aux1): Add
2166         noexcept.
2167         (__is_convertible_helper<_From, _To, false>::__test_nothrow)
2168         (__is_convertible_helper<_From, _To, false>::__is_nothrow_type): Add
2169         new members.
2170         (is_nothrow_convertible, is_nothrow_convertible_v): Define for C++2a.
2171         * testsuite/20_util/is_nothrow_convertible/value.cc: New.
2172         * testsuite/20_util/is_nothrow_convertible/requirements/
2173         explicit_instantiation.cc: New.
2174         * testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
2175         New.
2176
2177         P0887R1 The identity metafunction
2178         * include/std/type_traits (type_identity, type_identity_t): Define
2179         for C++2a.
2180         * testsuite/20_util/type_identity/requirements/alias_decl.cc: New.
2181         * testsuite/20_util/type_identity/requirements/
2182         explicit_instantiation.cc:New.
2183         * testsuite/20_util/type_identity/requirements/typedefs.cc: New.
2184
2185         * include/bits/regex.h (sub_match::operator string_type): Call str().
2186         (sub_match::compare): Use _M_str() instead of str().
2187         (sub_match::_M_compare): New public function.
2188         (sub_match::__string_view): New helper type.
2189         (sub_match::_M_str): New overloaded functions to avoid creating a
2190         string_type object when not needed.
2191         (operator==, operator!=, operator<, operator>, operator<=, operator>=):
2192         Use sub_match::_M_compare instead of creating string_type objects.
2193         Fix Doxygen comments.
2194         * include/bits/regex_compiler.h (__has_contiguous_iter): Remove.
2195         (__is_contiguous_normal_iter): Rename to __is_contiguous_iter and
2196         simplify.
2197         (__enable_if_contiguous_iter, __disable_if_contiguous_iter): Use
2198         __enable_if_t.
2199         * include/std/type_traits (__enable_if_t): Define for C++11.
2200         * testsuite/28_regex/sub_match/compare.cc: New.
2201         * testsuite/util/testsuite_iterators.h (remove_cv): Add transformation
2202         trait.
2203         (input_iterator_wrapper): Use remove_cv for value_type argument of
2204         std::iterator base class.
2205
2206 2018-06-29  Jonathan Wakely  <jwakely@redhat.com>
2207
2208         * testsuite/20_util/add_rvalue_reference/requirements/alias_decl.cc:
2209         Add whitespace to dejagnu directive.
2210         * testsuite/23_containers/array/element_access/at_neg.cc: Likewise.
2211
2212 2018-06-27  François Dumont  <fdumont@gcc.gnu.org>
2213
2214         * include/bits/stl_vector.h
2215         (struct _Vector_base<>::_Vector_impl_data): New.
2216         (struct _Vector_base<>::_Vector_impl): Inherit from latter.
2217         (_Vector_base<>::_Vector_impl::_M_swap_data): Move...
2218         (_Vector_base<>::_Vector_impl_data::_M_swap_data): ...here.
2219         (_Vector_base<>::_Vector_impl()): Add noexcept qualification.
2220         (_Vector_base<>::_Vector_impl(_Vector_impl&&)): New.
2221         (_Vector_base<>::_Vector_impl(_Tp_alloc_type&&, _Vector_impl&&)): New.
2222         (_Vector_base(const allocator_type&, _Vector_base&&)): New, use latter.
2223         (_Vector_base()): Default.
2224         (_Vector_base(_Vector_base&&)): Default.
2225         (_Vector_base(size_t)) [_GLIBCXX_INLINE_VERSION]: Delete.
2226         (_Vector_base(_Tp_alloc_type&&)) [_GLIBCXX_INLINE_VERSION]: Delete.
2227         (_Vector_base::_M_create_storage(size_t)): Make protected.
2228         (vector()): Default.
2229         (vector(vector&&)): Default.
2230         (vector(vector&&, const allocator_type&, true_type)): New.
2231         (vector(vector&&, const allocator_type&, false_type)): New.
2232         (vector(vector&&, const allocator_type&)): Use latters.
2233         (vector(_InputIte, _InputIte, const allocator_type&)): Call
2234         _M_range_initialize directly.
2235         * include/debug/vector
2236         (vector(vector&&, const allocator_type&)): Add noexcept qualification.
2237         * testsuite/23_containers/vector/allocator/default_init.cc: New.
2238         * testsuite/23_containers/vector/cons/noexcept_move_construct.cc: Add
2239         static assertions.
2240
2241 2018-06-27  Jonathan Wakely  <jwakely@redhat.com>
2242
2243         * include/bits/cpp_type_traits.h [__cplusplus >= 201703]
2244         (__is_byte<byte>): Define specialization for std::byte.
2245
2246         PR libstdc++/86138
2247         * include/bits/basic_string.tcc: [_GLIBCXX_EXTERN_TEMPLATE < 0]
2248         Declare explicit instantiations of COW empty reps and I/O functions.
2249
2250 2018-06-26  David Edelsohn  <dje.gcc@gmail.com>
2251
2252         * testsuite/experimental/algorithm/sample-2.cc: Add TLS DejaGNU
2253         directives.
2254         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
2255
2256 2018-06-26  Jonathan Wakely  <jwakely@redhat.com>
2257
2258         * include/bits/regex.tcc (regex_iterator::operator==): Add missing
2259         noexcept.
2260
2261 2018-06-25  Jonathan Wakely  <jwakely@redhat.com>
2262
2263         PR libstdc++/86112
2264         * python/libstdcxx/v6/printers.py (add_one_template_type_printer):
2265         Replace dict comprehension.
2266
2267         PR libstdc++/81092
2268         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
2269
2270         PR libstdc++/86292
2271         * include/bits/stl_vector.h (vector::_M_range_initialize<InputIter>):
2272         Add try-catch block.
2273         * testsuite/23_containers/vector/cons/86292.cc: New.
2274
2275         * doc/xml/manual/status_cxx2017.xml: Document N4531 status.
2276
2277         * include/experimental/algorithm (sample, shuffle): Add new overloads
2278         using per-thread random number engine.
2279         * testsuite/experimental/algorithm/sample.cc: Simpify and reduce
2280         dependencies by using __gnu_test::test_container.
2281         * testsuite/experimental/algorithm/sample-2.cc: New.
2282         * testsuite/experimental/algorithm/shuffle.cc: New.
2283
2284 2018-06-22  Jonathan Wakely  <jwakely@redhat.com>
2285
2286         * config/abi/pre/gnu.ver: Fix __cxx11::basic_string patterns for
2287         different size_t mangling on 32-bit targets.
2288
2289         PR libstdc++/86280
2290         * include/experimental/memory_resource
2291         (__resource_adaptor_common::_AlignMgr::_M_token_size): Use type large
2292         enough for result of left shift.
2293
2294         PR libstdc++/86138
2295         * include/bits/basic_string.tcc:
2296         [__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI]
2297         (basic_string<char>::_Rep::_S_empty_rep_storage)
2298         (basic_string<wchar_t>::_Rep::_S_empty_rep_storage): Add explicit
2299         instantiation declarations.
2300         [__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable
2301         explicit instantiation declarations.
2302         * testsuite/21_strings/basic_string/cons/char/86138.cc: New.
2303         * testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New.
2304
2305 2018-06-21  Jonathan Wakely  <jwakely@redhat.com>
2306
2307         PR libstdc++/83328
2308         * acinclude.m4 (libtool_VERSION): Bump to 6:26:0.
2309         * config/abi/pre/gnu.ver: Add GLIBCXX_3.4.26 and export new symbol.
2310         * configure: Regenerate.
2311         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
2312         (basic_string::insert(const_iterator, initializer_list<C>)): Add.
2313         [_GLIBCXX_USE_CXX11_ABI && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
2314         (basic_string::insert(iterator, initializer_list<C>)): Suppress
2315         definition.
2316         * include/debug/string (basic_string::insert(iterator, C)): Change
2317         first parameter to const_iterator.
2318         (basic_string::insert(iterator, size_type, C)): Likewise. Change
2319         return type to iterator.
2320         (basic_string::insert(iterator, InputIterator, InputIterator)):
2321         Likewise.
2322         (basic_string::insert(iterator, initializer_list<C>)): Change first
2323         parameter to const_iterator and return type to iterator.
2324         * src/c++11/string-inst.cc: Extend comment.
2325         * testsuite/21_strings/basic_string/modifiers/insert/char/83328.cc:
2326         New.
2327         * testsuite/21_strings/basic_string/modifiers/insert/wchar_t/83328.cc:
2328         New.
2329         * testsuite/util/testsuite_abi.cc: Add new symbol version.
2330
2331         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
2332
2333         PR libstdc++/70940
2334         * include/experimental/memory_resource
2335         (__resource_adaptor_imp::do_deallocate): Add missing return.
2336         * testsuite/experimental/memory_resource/new_delete_resource.cc: New.
2337         * testsuite/experimental/memory_resource/resource_adaptor.cc: Test
2338         resource_adaptor with std::allocator, __gnu_cxx::new_allocator and
2339         __gnu_cxx::malloc_allocator.
2340
2341         PR libstdc++/70940
2342         * include/experimental/memory_resource (__resource_adaptor_common):
2343         New base class.
2344         (__resource_adaptor_common::_AlignMgr): Helper for obtaining aligned
2345         pointer from unaligned, and vice versa.
2346         (__resource_adaptor_imp::do_allocate): Use _AlignMgr to adjust
2347         allocated pointer to meet alignment request.
2348         (__resource_adaptor_imp::do_deallocate): Use _AlignMgr to retrieve
2349         original pointer for deallocation.
2350         (__resource_adaptor_imp::do_is_equal): Reformat.
2351         (__resource_adaptor_imp::_S_aligned_size): Remove.
2352         (__resource_adaptor_imp::_S_supported): Remove.
2353         (new_delete_resource): Use __gnu_cxx::new_allocator.
2354         * testsuite/experimental/memory_resource/resource_adaptor.cc: Test
2355         extended alignments and use debug_allocator to check for matching
2356         allocate/deallocate pairs.
2357
2358 2018-06-21  François Dumont  <fdumont@gcc.gnu.org>
2359
2360         * include/debug/safe_iterator.h
2361         (_Safe_iterator<>(const _Safe_iterator<_MutableIterator,>& __x)):
2362         Compare __x base iterator with a value-initialized iterator of the
2363         same type.
2364
2365 2018-06-20  Jonathan Wakely  <jwakely@redhat.com>
2366
2367         PR libstdc++/70966
2368         * include/experimental/memory_resource (__resource_adaptor_imp): Add
2369         static assertions to enforce requirements on pointer types.
2370         (__resource_adaptor_imp::get_allocator()): Add noexcept.
2371         (new_delete_resource, null_memory_resource): Return address of an
2372         object with dynamic storage duration.
2373         (__null_memory_resource): Remove.
2374         * testsuite/experimental/memory_resource/70966.cc: New.
2375
2376         * testsuite/20_util/duration/arithmetic/dr3050.cc: Add new test
2377         missed from recent commit.
2378
2379 2018-06-19  Jonathan Wakely  <jwakely@redhat.com>
2380
2381         * include/std/utility: Remove unused <exception> header.
2382
2383 2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
2384
2385         LWG 2975 ensure construct(pair<T,U>*, ...) used to construct pairs
2386         * include/std/scoped_allocator (__not_pair): Define SFINAE helper.
2387         (construct(_Tp*, _Args&&...)): Remove from overload set when _Tp is
2388         a specialization of std::pair.
2389         * testsuite/20_util/scoped_allocator/construct_pair.cc: Ensure
2390         pair elements are constructed correctly.
2391
2392         LWG 2989 hide path iostream operators from normal lookup
2393         * include/bits/fs_path.h (operator<<, operator>>): Define inline as
2394         friends.
2395         * testsuite/27_io/filesystem/path/io/dr2989.cc: New.
2396
2397         LWG 3050 Fix cv-qualification of convertibility constraints
2398         * include/std/chrono (duration, operator*, operator/, operator%): Use
2399         const-qualified type as source type in is_convertible constraints.
2400         * testsuite/20_util/duration/arithmetic/dr3050.cc: New.
2401         * testsuite/20_util/duration/cons/dr3050.cc: New.
2402         * testsuite/20_util/duration/literals/range.cc: Rename to...
2403         * testsuite/20_util/duration/literals/range_neg.cc: Here. Adjust
2404         dg-error lineno.
2405
2406 2018-06-18  Maya Rashish  <coypu@sdf.org>
2407
2408         * crossconfig.m4: Handle OpenBSD just like NetBSD.
2409         * configure: Rebuilt.
2410
2411 2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
2412
2413         P0754R2 <version> header
2414         * include/Makefile.am: Add new header.
2415         * include/Makefile.in: Regenerate.
2416         * include/bits/c++config: Change doxygen comment to suggest <version>
2417         instead of <iosfwd>.
2418         * include/precompiled/stdc++.h: Include <cwchar> and <cwctype>
2419         unconditionally.  Add C++17 and C++20 headers.
2420         * include/std/version: New header.
2421         * testsuite/17_intro/headers/c++2017/all_attributes.cc: New.
2422         * testsuite/17_intro/headers/c++2017/all_no_exceptions.cc: New.
2423         * testsuite/17_intro/headers/c++2017/all_no_rtti.cc: New.
2424         * testsuite/17_intro/headers/c++2017/all_pedantic_errors.cc: New.
2425         * testsuite/17_intro/headers/c++2017/operator_names.cc: New.
2426         * testsuite/17_intro/headers/c++2017/stdc++.cc: New.
2427         * testsuite/17_intro/headers/c++2017/stdc++_multiple_inclusion.cc:
2428         New.
2429         * testsuite/17_intro/headers/c++2020/all_attributes.cc: New.
2430         * testsuite/17_intro/headers/c++2020/all_no_exceptions.cc: New.
2431         * testsuite/17_intro/headers/c++2020/all_no_rtti.cc: New.
2432         * testsuite/17_intro/headers/c++2020/all_pedantic_errors.cc: New.
2433         * testsuite/17_intro/headers/c++2020/operator_names.cc: New.
2434         * testsuite/17_intro/headers/c++2020/stdc++.cc: New.
2435         * testsuite/17_intro/headers/c++2020/stdc++_multiple_inclusion.cc:
2436         New.
2437         * testsuite/18_support/headers/version/macros.cc: New.
2438         * testsuite/18_support/headers/version/macros.cc: New.
2439
2440         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Only check when
2441         enable_libstdcxx_filesystem_ts = yes. Check for link, readlink and
2442         symlink.
2443         * config.h.in: Regenerate.
2444         * configure: Regenerate.
2445         * configure.ac: Remove AC_CHECK_FUNCS for link, readlink and symlink.
2446
2447         LWG 3035. std::allocator's constructors should be constexpr
2448         * include/bits/allocator.h (allocator): Add constexpr to constructors
2449         for C++2a. Replace dynamic exception specifications with NOTHROW
2450         macro.
2451         (allocator, operator==, operator!=): Replace USE_NOEXCEPT macro with
2452         NOTHROW.
2453         * include/bits/c++config (_GLIBCXX20_CONSTEXPR): Define.
2454         * include/ext/malloc_allocator.h (malloc_allocator): Add constexpr
2455         to constructors for C++2a.
2456         * include/ext/new_allocator.h (new_allocator): Likewise.
2457
2458 2018-06-16  Jonathan Wakely  <jwakely@redhat.com>
2459
2460         LWG 3076 basic_string CTAD ambiguity
2461         * doc/xml/manual/intro.xml: Document LWG 3076 change.
2462         * include/bits/basic_string.h
2463         [__cpp_deduction_guides && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
2464         (basic_string(const _CharT*, const _Alloc&)): Turn into a function
2465         template constrained by _RequireAllocator.
2466         (basic_string(size_type, _CharT, const _Alloc&)): Likewise.
2467         * src/c++11/string-inst.cc (_GLIBCXX_DEFINING_STRING_INSTANTIATIONS):
2468         Define.
2469         * testsuite/21_strings/basic_string/cons/char/deduction.cc: Test
2470         deduction
2471         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
2472         Likewise.
2473
2474 2018-06-15  Jonathan Wakely  <jwakely@redhat.com>
2475
2476         PR libstdc++/86169
2477         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
2478         (basic_string::data()): Unshare string.
2479         * testsuite/21_strings/basic_string/operations/data/char/86169.cc:
2480         New.
2481
2482         * include/std/string_view (basic_string_view(const CharT*)): Remove
2483         check for null pointer and add nonnull attribute.
2484         (compare(const CharT*), compare(size_type, size_type, const CharT*))
2485         (find(const CharT*, size_type), rfind(const CharT*, size_type))
2486         (find_first_of(const CharT*, size_type))
2487         (find_last_of(const CharT*, size_type))
2488         (find_first_not_of(const CharT*, size_type))
2489         (find_last_not_of(const CharT*, size_type)): Add nonnull attribute.
2490         * testsuite/21_strings/basic_string_view/cons/char/nonnull.cc: New.
2491         * testsuite/21_strings/basic_string_view/operations/compare/char/
2492         nonnull.cc: New.
2493         * testsuite/21_strings/basic_string_view/operations/find/char/
2494         nonnull.cc: New.
2495         * testsuite/21_strings/basic_string_view/operations/rfind/char/
2496         nonnull.cc: New.
2497
2498         PR libstdc++/86168
2499         * include/bits/random.h (random_device(const string&)): Remove
2500         default argument.
2501
2502         * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits): Only
2503         define for C++17 and above.
2504
2505         LWG 2993 reference_wrapper<T> conversion from T&&
2506         * doc/xml/manual/intro.xml: Document LWG 2993 change.
2507         * include/bits/refwrap.h (reference_wrapper(_Tp&)): Remove.
2508         (reference_wrapper(_Tp&&)): Remove.
2509         (reference_wrapper<_Up>(_Up&&)): Define new constructor as constrained
2510         template.
2511         (reference_wrapper): Add deduction guide.
2512         * testsuite/20_util/reference_wrapper/deduction.cc: New.
2513         * testsuite/20_util/reference_wrapper/lwg2993.cc: New.
2514
2515         LWG 3039 Unnecessary decay in thread and packaged_task
2516         * include/std/future (__constrain_pkgdtask): Replace with ...
2517         (packaged_task::__not_same): New alias template, using
2518         __remove_cvref_t instead of decay.
2519         * include/std/thread (thread::__not_same): Add comment.
2520
2521 2018-06-14  Jonathan Wakely  <jwakely@redhat.com>
2522
2523         LWG 3075 basic_string needs deduction guides from basic_string_view
2524         * testsuite/21_strings/basic_string/cons/char/deduction.cc: Test
2525         deduction from string views.
2526         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
2527         Likewise.
2528
2529         LWG 3074 make scalar types non-deduced in valarray non-member functions
2530         * include/bits/valarray_after.h (_DEFINE_EXPR_BINARY_FUNCTION): Change
2531         scalar parameters to be a non-deduced context.
2532         * include/std/valarray (_DEFINE_BINARY_OPERATOR): Likewise. Adjust
2533         whitespace.
2534         * testsuite/26_numerics/valarray/operators.cc: Test scalar operands.
2535         * testsuite/26_numerics/valarray/transcend.cc: New.
2536
2537         * include/std/tuple (__cpp_lib_tuple_element_t, tuple_element_t):
2538         Move back to <utility>.
2539         * include/std/utility (__cpp_lib_tuple_element_t. tuple_element_t):
2540         Restore to here.
2541
2542         P0935R0 Eradicating unnecessarily explicit default constructors
2543         * include/backward/strstream (strstreambuf): Add non-explicit default
2544         constructor.
2545         * include/bits/locale_conv.h (wbuffer_convert, wstring_convert):
2546         Likewise.
2547         * include/bits/regex.h (match_results): Likewise.
2548         * testsuite/22_locale/conversions/buffer/1.cc: Test for non-explicit
2549         default constructor.
2550         * testsuite/22_locale/conversions/string/1.cc: Likewise.
2551         * testsuite/28_regex/match_results/ctors/char/default.cc: Likewise.
2552         * testsuite/28_regex/match_results/ctors/wchar_t/default.cc: Likewise.
2553
2554         * include/std/tuple (__cpp_lib_tuple_element_t): Move feature test
2555         macro from <utility> and change type to long.
2556         * include/std/utility (__cpp_lib_tuple_element_t): Remove.
2557         * testsuite/20_util/tuple/tuple_element_t.cc: Check for feature test
2558         macro.
2559
2560         P0935R0 Eradicating unnecessarily explicit default constructors
2561         * include/bits/random.h (uniform_real_distribution::param_type)
2562         (normal_distribution::param_type, lognormal_distribution::param_type)
2563         (gamma_distribution::param_type, chi_squared_distribution::param_type)
2564         (cauchy_distribution::param_type, fisher_f_distribution::param_type)
2565         (student_t_distribution::param_type)
2566         (bernoulli_distribution::param_type)
2567         (binomial_distribution::param_type)
2568         (geometric_distribution::param_type)
2569         (negative_binomial_distribution::param_type)
2570         (poisson_distribution::param_type)
2571         (exponential_distribution::param_type)
2572         (weibull_distribution::param_type)
2573         (extreme_value_distribution::param_type): Add non-explicit default
2574         constructors. Remove default argument for first parameter of explicit
2575         constructors.
2576         * include/bits/uniform_int_dist.h
2577         (uniform_int_distribution::param_type): Likewise.
2578         * include/ext/random
2579         (beta_distribution::param_type, rice_distribution::param_type)
2580         (nakagami_distribution::param_type, pareto_distribution::param_type)
2581         (k_distribution::param_type, arcsine_distribution::param_type)
2582         (hoyt_distribution::param_type, triangular_distribution::param_type)
2583         (von_mises_distribution::param_type)
2584         (hypergeometric_distribution::param_type)
2585         (logistic_distribution::param_type)
2586         (uniform_inside_sphere_distribution::param_type): Likewise.
2587         (uniform_on_sphere_distribution::param_type): Make default constructor
2588         non-explicit.
2589         * testsuite/26_numerics/random/bernoulli_distribution/cons/default.cc:
2590         Test param_type for non-explicit default constructor.
2591         * testsuite/26_numerics/random/binomial_distribution/cons/default.cc:
2592         Likewise.
2593         * testsuite/26_numerics/random/cauchy_distribution/cons/default.cc:
2594         Likewise.
2595         * testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc:
2596         Likewise.
2597         * testsuite/26_numerics/random/discrete_distribution/cons/default.cc:
2598         Likewise.
2599         * testsuite/26_numerics/random/exponential_distribution/cons/default.cc:
2600         Likewise.
2601         * testsuite/26_numerics/random/extreme_value_distribution/cons/default.cc:
2602         Likewise.
2603         * testsuite/26_numerics/random/fisher_f_distribution/cons/default.cc:
2604         Likewise.
2605         * testsuite/26_numerics/random/gamma_distribution/cons/default.cc:
2606         Likewise.
2607         * testsuite/26_numerics/random/geometric_distribution/cons/default.cc:
2608         Likewise.
2609         * testsuite/26_numerics/random/lognormal_distribution/cons/default.cc:
2610         Likewise.
2611         * testsuite/26_numerics/random/negative_binomial_distribution/cons/default.cc:
2612         Likewise.
2613         * testsuite/26_numerics/random/normal_distribution/cons/default.cc:
2614         Likewise.
2615         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/default.cc:
2616         Likewise.
2617         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/default.cc:
2618         Likewise.
2619         * testsuite/26_numerics/random/poisson_distribution/cons/default.cc:
2620         Likewise.
2621         * testsuite/26_numerics/random/student_t_distribution/cons/default.cc:
2622         Likewise.
2623         * testsuite/26_numerics/random/uniform_int_distribution/cons/default.cc:
2624         Likewise.
2625         * testsuite/26_numerics/random/uniform_real_distribution/cons/default.cc:
2626         Likewise.
2627         * testsuite/26_numerics/random/weibull_distribution/cons/default.cc:
2628         Likewise.
2629         * testsuite/ext/random/arcsine_distribution/cons/default.cc: Likewise.
2630         * testsuite/ext/random/beta_distribution/cons/default.cc: Likewise.
2631         * testsuite/ext/random/hoyt_distribution/cons/default.cc: Likewise.
2632         * testsuite/ext/random/hypergeometric_distribution/cons/default.cc:
2633         Likewise.
2634         * testsuite/ext/random/k_distribution/cons/default.cc: Likewise.
2635         * testsuite/ext/random/logistic_distribution/cons/default.cc: Likewise.
2636         * testsuite/ext/random/nakagami_distribution/cons/default.cc: Likewise.
2637         * testsuite/ext/random/normal_mv_distribution/cons/default.cc:
2638         Likewise.
2639         * testsuite/ext/random/pareto_distribution/cons/default.cc: Likewise.
2640         * testsuite/ext/random/rice_distribution/cons/default.cc: Likewise.
2641         * testsuite/ext/random/triangular_distribution/cons/default.cc:
2642         Likewise.
2643         * testsuite/ext/random/uniform_inside_sphere_distribution/cons/default.cc:
2644         Likewise.
2645         * testsuite/ext/random/uniform_on_sphere_distribution/cons/default.cc:
2646         Likewise.
2647         * testsuite/ext/random/von_mises_distribution/cons/default.cc:
2648         Likewise.
2649
2650 2018-06-14  Daniel Trebbien <dtrebbien@gmail.com>
2651             Jonathan Wakely  <jwakely@redhat.com>
2652
2653         PR libstdc++/83982
2654         * include/bits/vector.tcc (vector::_M_default_append(size_type)):
2655         Default-construct new elements before moving existing ones.
2656         * testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc:
2657         New.
2658
2659 2018-06-13  Jonathan Wakely  <jwakely@redhat.com>
2660
2661         PR libstdc++/86127
2662         * include/bits/forward_list.h (_Fwd_list_base::_Tp_alloc_type): Remove
2663         unused typedef.
2664         (_Fwd_list_base::_M_create_node, _Fwd_list_base::_M_erase_after):
2665         Use node allocator to create and destroy elements.
2666         (forward_list::_Tp_alloc_type): Remove unused typedef.
2667         (forward_list::_Alloc_traits): Use allocator_traits instead of
2668         __gnu_cxx::__alloc_traits.
2669
2670 2018-06-13  François Dumont  <fdumont@gcc.gnu.org>
2671
2672         * include/debug/helper_functions.h
2673         (__gnu_debug::_Safe_iterator<>): Add declaration.
2674         (__can_advance(_Ite, _Size)): New.
2675         (__can_advance(const _Safe_iterator<>&, _Size)): Overload declaration.
2676         * include/debug/functions.h
2677         (__gnu_debug::_Safe_iterator<>): Remove declaration.
2678         * include/debug/stl_iterator.h
2679         (__can_advance(const _Safe_iterator<>&)): New definition.
2680         * include/debug/stl_iterator.h
2681         (__can_advance(const std::reverse_iterator<>&, _Size)): New.
2682         (__can_advance(const std::move_iterator<>&, _Size)): New.
2683         * include/debug/macros.h (__glibcxx_check_can_increment): New.
2684         * include/debug/debug.h (__glibcxx_requires_can_increment): New.
2685         * include/bits/stl_algobase.h (fill_n): Use latter.
2686         * testsuite/25_algorithms/fill_n/2.cc: New.
2687         * testsuite/25_algorithms/fill_n/debug/1_neg.cc: New.
2688         * testsuite/25_algorithms/fill_n/debug/2_neg.cc: New.
2689         * testsuite/25_algorithms/fill_n/debug/3_neg.cc: New.
2690         * testsuite/25_algorithms/fill_n/debug/4_neg.cc: New.
2691
2692         * include/debug/debug.h (__glibcxx_requires_can_increment_range): New.
2693         (__glibcxx_requires_can_decrement_range): New.
2694
2695 2018-06-12  François Dumont  <fdumont@gcc.gnu.org>
2696
2697         * include/debug/macros.h (__glibcxx_check_can_increment_range): New.
2698         (__glibcxx_check_can_decrement_range): New.
2699         * include/bits/stl_algobase.h (std::copy(_II, _II, _OI)): Use
2700         __glibcxx_requires_can_increment_range.
2701         (std::move(_II, _II, _OI)): Likewise.
2702         (std::copy_backward(_BI, _BI, _BI2)): Use
2703         __glibcxx_requires_can_decrement_range.
2704         (std::move_backward(_BI, _BI, _BI2)): Likewise.
2705         * testsuite/25_algorithms/copy_backward/debug/1_neg.cc: New.
2706         * testsuite/25_algorithms/copy_backward/debug/2_neg.cc: New.
2707         * testsuite/25_algorithms/copy_backward/debug/3_neg.cc: New.
2708         * testsuite/25_algorithms/equal/debug/1_neg.cc: New.
2709         * testsuite/25_algorithms/equal/debug/2_neg.cc: New.
2710         * testsuite/25_algorithms/equal/debug/3_neg.cc: New.
2711
2712 2018-06-12  Jonathan Wakely  <jwakely@redhat.com>
2713
2714         P0935R0 Eradicating unnecessarily explicit default constructors
2715         * include/bits/random.h (linear_congruential_engine)
2716         (mersenne_twister_engine, subtract_with_carry_engine, random_device)
2717         (uniform_real_distribution, normal_distribution)
2718         (lognormal_distribution, gamma_distribution, chi_squared_distribution)
2719         (cauchy_distribution, fisher_f_distribution, student_t_distribution)
2720         (bernoulli_distribution, binomial_distribution,geometric_distribution)
2721         (negative_binomial_distribution, exponential_distribution)
2722         (weibull_distribution, extreme_value_distribution): Add non-explicit
2723         default constructors. Remove default argument for first parameter of
2724         explicit constructors.
2725         (piecewise_constant_distribution, piecewise_linear_distribution):
2726         Make default constructor non-explicit.
2727         * include/bits/uniform_int_dist.h (uniform_int_distribution): Add
2728         non-explicit default constructors. Remove default argument for first
2729         parameter of explicit constructor.
2730         * include/ext/random
2731         (simd_fast_mersenne_twister_engine, beta_distribution)
2732         (rice_distribution, nakagami_distribution, pareto_distribution)
2733         (k_distribution, arcsine_distribution, hoyt_distribution)
2734         (triangular_distribution, von_mises_distribution)
2735         (hypergeometric_distribution, logistic_distribution)
2736         (uniform_inside_sphere_distribution): Likewise.
2737         (uniform_on_sphere_distribution): Make default constructor
2738         non-explicit.
2739         * testsuite/26_numerics/random/bernoulli_distribution/cons/default.cc:
2740         Test for non-explicit default constructor. Fix references to standard.
2741         * testsuite/26_numerics/random/binomial_distribution/cons/default.cc:
2742         Likewise.
2743         * testsuite/26_numerics/random/cauchy_distribution/cons/default.cc:
2744         Likewise.
2745         * testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc:
2746         Likewise.
2747         * testsuite/26_numerics/random/discrete_distribution/cons/default.cc:
2748         Likewise.
2749         * testsuite/26_numerics/random/exponential_distribution/cons/default.cc:
2750         Likewise.
2751         * testsuite/26_numerics/random/extreme_value_distribution/cons/default.cc:
2752         Likewise.
2753         * testsuite/26_numerics/random/fisher_f_distribution/cons/default.cc:
2754         Likewise.
2755         * testsuite/26_numerics/random/gamma_distribution/cons/default.cc:
2756         Likewise.
2757         * testsuite/26_numerics/random/geometric_distribution/cons/default.cc:
2758         Likewise.
2759         * testsuite/26_numerics/random/lognormal_distribution/cons/default.cc:
2760         Likewise.
2761         * testsuite/26_numerics/random/negative_binomial_distribution/cons/default.cc:
2762         Likewise.
2763         * testsuite/26_numerics/random/normal_distribution/cons/default.cc:
2764         Likewise.
2765         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/default.cc:
2766         Likewise.
2767         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/default.cc:
2768         Likewise.
2769         * testsuite/26_numerics/random/poisson_distribution/cons/default.cc:
2770         Likewise.
2771         * testsuite/26_numerics/random/student_t_distribution/cons/default.cc:
2772         Likewise.
2773         * testsuite/26_numerics/random/uniform_int_distribution/cons/default.cc:
2774         Likewise.
2775         * testsuite/26_numerics/random/uniform_real_distribution/cons/default.cc:
2776         Likewise.
2777         * testsuite/26_numerics/random/weibull_distribution/cons/default.cc:
2778         Likewise.
2779         * testsuite/ext/random/arcsine_distribution/cons/default.cc: Likewise.
2780         * testsuite/ext/random/beta_distribution/cons/default.cc: Likewise.
2781         * testsuite/ext/random/hoyt_distribution/cons/default.cc: Likewise.
2782         * testsuite/ext/random/hypergeometric_distribution/cons/default.cc:
2783         Likewise.
2784         * testsuite/ext/random/k_distribution/cons/default.cc: Likewise.
2785         * testsuite/ext/random/logistic_distribution/cons/default.cc: Likewise.
2786         * testsuite/ext/random/nakagami_distribution/cons/default.cc: Likewise.
2787         * testsuite/ext/random/normal_mv_distribution/cons/default.cc:
2788         Likewise.
2789         * testsuite/ext/random/pareto_distribution/cons/default.cc: Likewise.
2790         * testsuite/ext/random/rice_distribution/cons/default.cc: Likewise.
2791         * testsuite/ext/random/triangular_distribution/cons/default.cc:
2792         Likewise.
2793         * testsuite/ext/random/uniform_inside_sphere_distribution/cons/default.cc:
2794         Likewise.
2795         * testsuite/ext/random/uniform_on_sphere_distribution/cons/default.cc:
2796         Likewise.
2797         * testsuite/ext/random/von_mises_distribution/cons/default.cc:
2798         Likewise.
2799         * testsuite/util/testsuite_common_types.h
2800         (implicitly_default_constructible): New helper.
2801
2802 2018-06-08  Jonathan Wakely  <jwakely@redhat.com>
2803
2804         * include/bits/ios_base.h (ios::Init::Init(const Init&))
2805         (ios::Init::operator=): Define as defaulted.
2806         * include/bits/stl_bvector.h (_Bit_reference(const _Bit_reference&)):
2807         Likewise.
2808         * include/bits/stream_iterator.h (istream_iterator::operator=)
2809         (ostream_iterator::operator=): Likewise.
2810         * include/bits/streambuf_iterator.h (istreambuf_iterator::operator=)
2811         Likewise.
2812         * include/std/bitset (bitset::reference::reference(const reference&)):
2813         Likewise.
2814         * include/std/complex (complex<float>::complex(const complex&))
2815         (complex<double>::complex(const complex&))
2816         (complex<long double>::complex(const complex&)): Likewise.
2817
2818 2018-06-07  Jonathan Wakely  <jwakely@redhat.com>
2819
2820         * include/bits/regex.h (sub_match): Add noexcept to default
2821         constructor and length observer.
2822         (match_results): Add noexcept to default constructor and observers
2823         with no preconditions. Define destructor as defaulted.
2824         (operator==, operator!=, swap): Add noexcept.
2825         (regex_iterator): Add default member initializers and define default
2826         constructor and destructor as defaulted. Add noexcept to equality
2827         and dereference operators.
2828
2829 2018-06-07  François Dumont  <fdumont@gcc.gnu.org>
2830
2831         * src/c++11/debug.cc
2832         (_Safe_iterator_base::_M_detach()): Reset state only if needed.
2833         (_Safe_iterator_base::_M_detach_single()): Likewise.
2834         (_Safe_local_iterator_base::_M_detach()): Reset state only if needed.
2835         (_Safe_local_iterator_base::_M_detach_single()): Likewise.
2836
2837 2018-06-06  Jonathan Wakely  <jwakely@redhat.com>
2838
2839         * include/bits/shared_ptr_base.h (__shared_count): Remove redundant
2840         move of const value.
2841
2842 2018-06-06  Jakub Jelinek  <jakub@redhat.com>
2843
2844         PR c++/86068
2845         * include/bits/c++config: Check __cpp_transactional_memory >= 201500L
2846         rather than __cpp_transactional_memory >= 201505L.
2847
2848 2018-06-06  Jonathan Wakely  <jwakely@redhat.com>
2849
2850         PR libstdc++/86008
2851         * include/bits/quoted_string.h (_Quoted_string<basic_string_view, C>):
2852         Define new partial specialization.
2853         * include/std/iomanip (quoted(basic_string_view<C,T>, C, C)): Define
2854         new overload.
2855         (operator<<(basic_ostream<C,T>&, const _Quoted_string<S,C>&)): Use
2856         value not reference for iteration.
2857         * testsuite/27_io/manipulators/standard/char/quoted.cc: Adjust
2858         comment.
2859         * testsuite/27_io/manipulators/standard/char/quoted_sv.cc: New test.
2860         * testsuite/27_io/manipulators/standard/wchar_t/quoted.cc: Adjust
2861         comment.
2862
2863 2018-06-05  Jonathan Wakely  <jwakely@redhat.com>
2864
2865         * include/std/type_traits: Fix comment typos.
2866
2867         * testsuite/27_io/filesystem/operations/read_symlink.cc: XFAIL for
2868         mingw* targets.
2869         * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
2870         * testsuite/experimental/filesystem/operations/read_symlink.cc:
2871         Likewise.
2872
2873 2018-06-05  François Dumont  <fdumont@gcc.gnu.org>
2874
2875         * include/bits/stl_tempbuf.h
2876         (_Temporary_buffer(_FwdIte, _FwdIte)): Delete, replaced by...
2877         (_Temporary_buffer(_FwdIte, size_type)): ...this, new.
2878         * include/ext/memory (temporary_buffer<>(_FwdIte, _FwdIte)): Adapt.
2879         * include/bits/stl_algo.h (__stable_partition): Adapt.
2880         (__inplace_merge): Adapt.
2881         (__stable_sort): Adapt.
2882
2883 2018-06-04  Jonathan Wakely  <jwakely@redhat.com>
2884
2885         PR libstdc++/85930
2886         * include/bits/shared_ptr_base.h [!__cpp_rtti]: Include <typeinfo>
2887         unconditionally. Remove redundant declaration.
2888         [!__cpp_rtti] (_Sp_make_shared_tag::_S_ti): Fix location of
2889         alignment-specifier.
2890
2891         * include/bits/postypes.h (fpos): Define special members as defaulted.
2892
2893         PR libstdc++/85930
2894         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Align
2895         the static variable correctly.
2896
2897 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
2898
2899         PR libstdc++/78870 support std::filesystem on Windows
2900         * config.h.in: Regenerate.
2901         * configure: Regenerate.
2902         * configure.ac: Check for link, readlink and symlink.
2903         * include/bits/fs_path.h (path::operator/=(const path&)): Move
2904         definition out of class body.
2905         (path::is_absolute(), path::_M_append(path)): Likewise.
2906         (operator<<(basic_ostream, const path&)): Use std::quoted directly.
2907         (operator>>(basic_istream, path&)): Likewise.
2908         (u8path): Reorder definitions and fix Windows implementation.
2909         (path::is_absolute()): Define inline and fix for Windows.
2910         [!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
2911         Define POSIX version inline.
2912         (path::_M_append(path)): Define inline.
2913         * include/experimental/bits/fs_path.h (path::is_absolute()): Move
2914         definition out of class body.
2915         (operator<<(basic_ostream, const path&)): Fix type of delimiter and
2916         escape characters.
2917         (operator>>(basic_istream, path&)): Likewise.
2918         (path::is_absolute()): Define inline and fix for Windows.
2919         * src/filesystem/dir-common.h (__gnu_posix): New namespace.
2920         (__gnu_posix::char_type, __gnu_posix::DIR, __gnu_posix::dirent)
2921         (__gnu_posix::opendir, __gnu_posix::readdir, __gnu_posix::closedir):
2922         Define as adaptors for Windows functions/types or as
2923         using-declarations for POSIX functions/types.
2924         (_Dir_base, get_file_type): Qualify names to use declarations from
2925         __gnu_posix namespace.
2926         (_Dir_base::is_dor_or_dotdot): New helper functions.
2927         * src/filesystem/dir.cc (_Dir, recursive_directory_iterator): Qualify
2928         names to use declarations from __gnu_posix namespace.
2929         * src/filesystem/ops-common.h (__gnu_posix): New nested namespace.
2930         (__gnu_posix::open, __gnu_posix::close, __gnu_posix::stat_type)
2931         (__gnu_posix::stat, __gnu_posix::lstat, __gnu_posix::mode_t)
2932         (__gnu_posix::chmod, __gnu_posix::mkdir, __gnu_posix::getcwd)
2933         (__gnu_posix::chdir, __gnu_posix::utimbuf, __gnu_posix::utime)
2934         (__gnu_posix::rename, __gnu_posix::truncate, __gnu_posix::char_type):
2935         Define as adaptors for Windows functions/types or as
2936         using-declarations for POSIX functions/types.
2937         (stat_type, do_copy_file): Qualify names to use declarations from
2938         __gnu_posix namespace.
2939         (do_space): Declare new function.
2940         (make_file_type): Only use S_ISLNK if defined.
2941         * src/filesystem/ops.cc (char_ptr, filesystem::canonical): Use
2942         path::value_type not char.
2943         (filesystem::copy, create_dir, filesystem::create_directory): Qualify
2944         names to use declarations from __gnu_posix namespace.
2945         (filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
2946         add implementation for Windows.
2947         (filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
2948         (filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
2949         [!_PC_PATH_MAX]: Don't use pathconf.
2950         [PATH_MAX]: Use if defined.
2951         (filesystem::current_path(const path&, error_code&))
2952         (filesystem::equivalent, do_stat, filesystem::hard_link_count)
2953         (filesystem::last_write_time, filesystem::permissions): Use names
2954         from __gnu_posix.
2955         (filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
2956         (filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
2957         implementation for Windows.
2958         (filesystem::rename, filesystem::resize_file): Use names from
2959         __gnu_posix.
2960         (filesystem::space): Use do_space.
2961         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Get absolute path to directory.
2962         (filesystem::status, filesystem::symlink_status): Use names from
2963         __gnu_posix.
2964         (filesystem::temp_directory_path): Add implementation for Windows.
2965         * src/filesystem/path.cc (dot): Define constant.
2966         (path::replace_extension): Use dot.
2967         (path::_M_find_extension): Likewise. Use path::string_type not
2968         std::string.
2969         (path::_M_split_cmpts): Use dot.
2970         (filesystem_error::_M_get_what): Use u8string() not native().
2971         * src/filesystem/std-dir.cc (_Dir, recursive_directory_iterator):
2972         Qualify names to use declarations from __gnu_posix namespace.
2973         * src/filesystem/std-ops.cc (filesystem::absolute(const path&)): Use
2974         correct error_code.
2975         (filesystem::absolute(const path&, error_code&)): Add implementation
2976         for Windows.
2977         (char_ptr, filesystem::canonical): Use path::value_type not char.
2978         (do_copy_file): Use names from __gnu_posix.
2979         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Do not use fchmod, fchmodat or
2980         sendfile.
2981         (filesystem::copy, create_dir, filesystem::create_directory): Qualify
2982         names to use declarations from __gnu_posix namespace.
2983         (filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
2984         add implementation for Windows.
2985         (filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
2986         (filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
2987         [!_PC_PATH_MAX]: Don't use pathconf.
2988         [PATH_MAX]: Use if defined.
2989         (filesystem::current_path(const path&, error_code&))
2990         (filesystem::equivalent, do_stat, filesystem::hard_link_count)
2991         (filesystem::last_write_time, filesystem::permissions): Use names
2992         from __gnu_posix.
2993         (filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
2994         (filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
2995         implementation for Windows.
2996         (filesystem::rename, filesystem::resize_file): Use names from
2997         __gnu_posix.
2998         (do_space): Define.
2999         (filesystem::space): Use do_space.
3000         (filesystem::status, filesystem::symlink_status): Use names from
3001         __gnu_posix.
3002         (filesystem::temp_directory_path): Add implementation for Windows.
3003         * src/filesystem/std-path.cc
3004         [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
3005         Define for Windows.
3006         (dot): Define constant.
3007         (path::replace_extension, is_dot): Use dot.
3008         (path::lexically_normal): Check _M_type instead of calling
3009         non-existent function.
3010         (path::_M_find_extension): Use dot. Use path::string_type not
3011         std::string.
3012         (path::_M_split_cmpts): Use dot.
3013         (filesystem_error::_M_get_what): Use u8string() not native().
3014         * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Do not
3015         use symlinks.
3016         * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
3017         Likewise.
3018         * testsuite/27_io/filesystem/operations/absolute.cc: Use
3019         __gnu_test::root_path() instead of "/" and add Windows-specific tests.
3020         * testsuite/27_io/filesystem/operations/canonical.cc: Use
3021         path::string() to get narrow string, not path::native().
3022         * testsuite/27_io/filesystem/operations/copy.cc: Construct fstreams
3023         with std::filesystem::path not std::basic_string.
3024         * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
3025         * testsuite/27_io/filesystem/operations/exists.cc: Use
3026         __gnu_test::root_path() instead of "/".
3027         * testsuite/27_io/filesystem/operations/is_empty.cc: Construct
3028         fstreams with std::filesystem::path not std::basic_string.
3029         * testsuite/27_io/filesystem/operations/last_write_time.cc: Use
3030         path::string() to get narrow string.
3031         * testsuite/27_io/filesystem/operations/space.cc: Check results for
3032         errors, expect sensible values otherwise.
3033         * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Add
3034         helpers for adjusting the environment on Windows.
3035         * testsuite/27_io/filesystem/path/append/path.cc: Test
3036         Windows-specific behaviour.
3037         * testsuite/27_io/filesystem/path/construct/format.cc: Fix creation
3038         of path::string_type objects.
3039         * testsuite/27_io/filesystem/path/construct/locale.cc: Compare native
3040         string to wide string on Windows.
3041         * testsuite/27_io/filesystem/path/decompose/root_directory.cc: Allow
3042         for backslash as root-directory.
3043         * testsuite/27_io/filesystem/path/decompose/stem.cc: Use
3044         path::string() to get narrow string.
3045         * testsuite/27_io/filesystem/path/itr/traversal.cc: Test Windows-style
3046         paths.
3047         * testsuite/27_io/filesystem/path/native/string.cc: Use string_type
3048         not std::string.
3049         * testsuite/27_io/filesystem/path/query/is_absolute.cc: Adjust for
3050         different definintion of absolute paths on Windows.
3051         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
3052         Do not use symlinks.
3053         * testsuite/experimental/filesystem/operations/absolute.cc: Test
3054         Windows behaviour.
3055         * testsuite/experimental/filesystem/operations/copy.cc: Construct
3056         fstreams with NTCTS not std::basic_string.
3057         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
3058         * testsuite/experimental/filesystem/operations/exists.cc: Use
3059         __gnu_test::root_path() instead of "/".
3060         * testsuite/experimental/filesystem/operations/is_empty.cc: Construct
3061         fstreams with NTCTS not std::basic_string.
3062         * testsuite/experimental/filesystem/operations/last_write_time.cc:
3063         Use path::string() to get narrow string.
3064         * testsuite/experimental/filesystem/operations/space.cc: Use
3065         __gnu_test::root_path() instead of "/".
3066         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
3067         Add helpers for adjusting the environment on Windows.
3068         * testsuite/experimental/filesystem/path/append/path.cc: Use
3069         path::string() to get narrow strings for comparisons.
3070         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
3071         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
3072         Likewise.
3073         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
3074         * testsuite/experimental/filesystem/path/native/string.cc: Use
3075         string_type not std::string.
3076         * testsuite/experimental/filesystem/path/query/is_absolute.cc:
3077         Adjust for different definintion of absolute paths on Windows.
3078         * testsuite/util/testsuite_fs.h (__gnu_test::root_path()): New
3079         function.
3080         (__gnu_test::scoped_file): Construct fstreams with NTCTS not
3081         std::basic_string.
3082
3083 2018-05-31  Jonathan Wakely  <jwakely@redhat.com>
3084
3085         PR libstdc++/85951
3086         * include/std/type_traits [_GLIBCXX_USE_C99_STDINT_TR1]: Do not define
3087         uint_least16_t and uint_least32_t.
3088         (__make_unsigned<wchar_t>): Define unconditionally.
3089         (__make_unsigned_selector<_Tp, true, false>): Remove intermediate
3090         typedefs.
3091         (__make_unsigned_selector_base): New type to provide helper templates.
3092         (__make_unsigned_selector<_Tp, false, true>): Reimplement using
3093         __make_unsigned_selector_base helpers.
3094         (__make_unsigned<char16_t>, __make_unsigned<char32_t>): Define.
3095         (__make_signed_selector<_Tp, true, false>): Remove intermediate
3096         typedefs.
3097         (__make_signed<wchar_t>, __make_signed<char16_t>)
3098         (__make_signed<char32_t>)): Define unconditionally.
3099         * testsuite/20_util/make_signed/requirements/typedefs-3.cc: Check
3100         wchar_t, char16_t and char32_t are transformed correctly.
3101         * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
3102         dg-error lineno.
3103         * testsuite/20_util/make_unsigned/requirements/typedefs-3.cc: Check
3104         wchar_t, char16_t and char32_t are transformed correctly.
3105         * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust
3106         dg-error lineno.
3107
3108 2018-05-29  Jonathan Wakely  <jwakely@redhat.com>
3109
3110         * include/std/variant (__erased_dtor): Qualify call to __get.
3111
3112 2018-05-27  François Dumont  <fdumont@gcc.gnu.org>
3113
3114         * include/bits/stl_tree.h (_Rb_tree_impl(_Node_allocator&&)): New.
3115         (_Rb_tree(const allocator_type&)): Use latter.
3116         * include/bits/stl_map.h (map(const allocator_type&)): Likewise.
3117         (map(initializer_list<value_type>, const allocator_type&)): Likewise.
3118         (map(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
3119         * include/bits/stl_multimap.h
3120         (multimap(const allocator_type&)): Likewise.
3121         (multimap(initializer_list<value_type>, const allocator_type&)):
3122         Likewise.
3123         (multimap(_InputIterator, _InputIterator, const allocator_type&)):
3124         Likewise.
3125         * include/bits/stl_set.h (set(const allocator_type&)): Likewise.
3126         (set(initializer_list<value_type>, const allocator_type&)): Likewise.
3127         (set(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
3128         * include/bits/stl_multiset.h
3129         (multiset(const allocator_type&)): Likewise.
3130         (multiset(initializer_list<value_type>, const allocator_type&)):
3131         Likewise.
3132         (multiset(_InputIterator, _InputIterator, const allocator_type&)):
3133         Likewise.
3134
3135 2018-05-25  François Dumont  <fdumont@gcc.gnu.org>
3136
3137         PR libstdc++/85768
3138         * src/c++11/debug.cc: Remove backtrace usage.
3139
3140 2018-05-24  Maya Rashish  <coypu@sdf.org>
3141
3142         PR target/85904
3143         * crossconfig.m4: Test for aligned_alloc on netbsd.
3144         * configure: Regenerate.
3145
3146 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
3147
3148         PR libstdc++/69769
3149         PR libstdc++/85886
3150         * include/bits/atomic_base.h (__atomic_base::value_type)
3151         (__atomic_base::difference_type): Add new typedefs.
3152         * include/std/atomic (atomic<bool>::value_type, atomic<T>::value_type)
3153         (atomic<T*>::value_type, atomic<T*>::difference_type): Likewise.
3154         (atomic<T*>::operator++, atomic<T*>::operator--)
3155         (atomic<T*>::operator+=, atomic<T*>::operator-=)
3156         (atomic<T*>::fetch_add, atomic<T*>::fetch_sub): Add static assertion
3157         to enforce C++17 requirement on pointer arithmetic.
3158         (__atomic_val_t, __atomic_diff_t): New alias templates.
3159         (atomic_init, atomic_store_explicit, atomic_exchange_explicit)
3160         (atomic_compare_exchange_weak_explicit)
3161         (atomic_compare_exchange_strong_explicit, atomic_store)
3162         (atomic_exchange, atomic_compare_exchange_weak)
3163         (atomic_compare_exchange_strong): Use __atomic_val_t to make
3164         scalar parameters be non-deduced contexts.
3165         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
3166         (atomic_fetch_add, atomic_fetch_sub): Change first parameter to be
3167         atomic instead of __atomic_base, and use __atomic_diff_t for scalar
3168         parameters.
3169         (atomic_fetch_and_explicit, atomic_fetch_or_explicit)
3170         (atomic_fetch_xor_explicit, atomic_fetch_and, atomic_fetch_or)
3171         (atomic_fetch_xor): Use __atomic_val_t for scalar parameters.
3172         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
3173         (atomic_fetch_add, atomic_fetch_sub): Remove overloads for atomic
3174         address types.
3175         * testsuite/29_atomics/atomic/60695.cc: Adjust dg-error lineno.
3176         * testsuite/29_atomics/atomic/69769.cc: New test.
3177         * testsuite/29_atomics/atomic/nonmembers.cc: New test.
3178         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
3179         Disable test for C++17 and later.
3180         * testsuite/29_atomics/atomic/requirements/typedefs.cc: New test.
3181         * testsuite/29_atomics/atomic_integral/nonmembers.cc: New test.
3182         * testsuite/29_atomics/atomic_integral/requirements/typedefs.cc: New
3183         test.
3184
3185 2018-05-23  Jonathan Wakely  <jwakely@redhat.com>
3186
3187         * include/bits/fs_path.h (path::__is_encoded_char): Change from class
3188         template to alias template.
3189         (path::__value_type_is_char): Use remove_const_t.
3190         (path:_S_string_from_iter): New helper function.
3191         (path::_S_convert(InputIter, __null_terminated))
3192         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
3193         Use _S_string_from_iter.
3194         (path::string<_CharT, _Allocator>(const _Allocator&)): Allow sharing
3195         rep for COW strings.
3196         * include/experimental/bits/fs_path.h (path::__is_encoded_char):
3197         Change from class template to alias template.
3198         (path::__value_type_is_char): Use remove_const.
3199         (path:_S_string_from_iter): New helper function.
3200         (path::_S_convert(InputIter, __null_terminated))
3201         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
3202         Use _S_string_from_iter.
3203         * testsuite/27_io/filesystem/path/append/source.cc: Test appending
3204         wide strings.
3205         * testsuite/27_io/filesystem/path/concat/strings.cc: Check for exact
3206         string equality, not path equivalence.
3207         * testsuite/27_io/filesystem/path/construct/format.cc: Check
3208         construction from std::string and std::wstring and input iterators.
3209         * testsuite/27_io/filesystem/path/construct/locale.cc: Check
3210         construction from iterators.
3211         * testsuite/experimental/filesystem/path/concat/strings.cc: Check for
3212         exact string equality, not path equivalence.
3213         * testsuite/experimental/filesystem/path/construct/locale.cc: Check
3214         construction from iterators.
3215
3216         * include/bits/fs_path.h (path::_M_type): Change default member
3217         initializer to _Filename.
3218         (path::begin): Create past-the-end iterator for empty path.
3219         * src/filesystem/std-path.cc (path::remove_filename()): Remove
3220         debugging check.
3221         (path::has_relative_path()): Return false for empty filenames.
3222         (path::_M_split_cmpts): Set _M_type to _Filename for empty paths.
3223         Fix offset of empty final component.
3224         * testsuite/27_io/filesystem/path/itr/components.cc: New.
3225         * testsuite/27_io/filesystem/path/itr/traversal.cc: Add new inputs.
3226
3227 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
3228
3229         Add support for opening file streams from wide character strings.
3230         * config/io/basic_file_stdio.cc [_GLIBCXX_HAVE__WFOPEN]
3231         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
3232         Define new overload.
3233         * config/io/basic_file_stdio.h [_GLIBCXX_HAVE__WFOPEN]
3234         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
3235         Declare new overload.
3236         * configure.ac: Check for _wfopen.
3237         * crossconfig.m4: Likewise.
3238         * configure: Regenerate.
3239         * config.h.in: Regenerate.
3240         * include/bits/fstream.tcc [_GLIBCXX_HAVE__WFOPEN]
3241         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
3242         Define new overload.
3243         * include/std/fstream [_GLIBCXX_HAVE__WFOPEN]
3244         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
3245         Declare new overload.
3246         [_GLIBCXX_HAVE__WFOPEN]
3247         (basic_ifstream<C,T>::basic_ifstream(const wchar_t*, openmode))
3248         (basic_ifstream<C,T>::basic_open(const wchar_t*, openmode))
3249         (basic_ofstream<C,T>::basic_ifstream(const wchar_t*, openmode))
3250         (basic_ofstream<C,T>::basic_open(const wchar_t*, openmode))
3251         (basic_fstream<C,T>::basic_ifstream(const wchar_t*, openmode))
3252         (basic_fstream<C,T>::basic_open(const wchar_t*, openmode)): Define
3253         new overloads.
3254         * testsuite/27_io/basic_filebuf/open/wchar_t/1.cc: New.
3255         * testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: New.
3256         * testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: New.
3257         * testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: New.
3258         * testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: New.
3259         * testsuite/27_io/basic_fstream/cons/wchar_t/1.cc: New.
3260         * testsuite/27_io/basic_fstream/open/wchar_t/1.cc: New.
3261
3262 2018-05-21  François Dumont  <fdumont@gcc.gnu.org>
3263
3264         PR libstdc++/85845
3265         * include/bits/stl_tree.h
3266         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): Fix noexcept
3267         qualification.
3268
3269 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
3270
3271         * src/filesystem/std-ops.cc (absolute): Report an error for empty
3272         paths.
3273         (weakly_canonical(const path&)): Do not call canonical on empty path.
3274         (weakly_canonical(const path&, error_code&)): Likewise.
3275         * testsuite/27_io/filesystem/operations/absolute.cc: Check for errors.
3276
3277         PR libstdc++/85818
3278         * testsuite/experimental/filesystem/path/preferred_separator.cc: Add
3279         dg-require-filesystem-ts.
3280
3281         PR libstdc++/85843
3282         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Explicitly
3283         initialize base class to avoid warnings.
3284
3285 2018-05-19  Jonathan Wakely  <jwakely@redhat.com>
3286
3287         * src/c++11/codecvt.cc (__codecvt_utf8_base<wchar_t>::do_in)
3288         [__SIZEOF_WCHAR_T__==2 && __BYTE_ORDER__!=__ORDER_BIG_ENDIAN__]: Set
3289         little_endian element in bitmask.
3290         * testsuite/22_locale/codecvt/codecvt_utf8/69703.cc: Run all tests.
3291         * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: New.
3292
3293 2018-05-18  François Dumont  <fdumont@gcc.gnu.org>
3294
3295         * include/bits/stl_tree.h
3296         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): New.
3297         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, true_type)): New, use latter.
3298         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, false_type)): New.
3299         (_Rb_tree(_Rb_tree&&, _Node_allocator&&)): Adapt, use latters.
3300         * include/debug/map.h
3301         (map(map&&, const_allocator_type&)): Add noexcept qualitication.
3302         * include/debug/multimap.h
3303         (multimap(multimap&&, const_allocator_type&)): Likewise.
3304         * include/debug/set.h
3305         (set(set&&, const_allocator_type&)): Likewise.
3306         * include/debug/multiset.h
3307         (multiset(multiset&&, const_allocator_type&)): Likewise.
3308         * testsuite/23_containers/map/cons/noexcept_default_construct.cc:
3309         Add checks.
3310         * testsuite/23_containers/map/cons/noexcept_move_construct.cc:
3311         Add checks.
3312         * testsuite/23_containers/multimap/cons/noexcept_default_construct.cc:
3313         Add checks.
3314         * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc:
3315         Add checks.
3316         * testsuite/23_containers/multiset/cons/noexcept_default_construct.cc:
3317         Add checks.
3318         * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc:
3319         Add checks.
3320         * testsuite/23_containers/set/cons/noexcept_default_construct.cc:
3321         Add checks.
3322         * testsuite/23_containers/set/cons/noexcept_move_construct.cc:
3323         Add checks.
3324
3325 2018-05-18  Jason Merrill  <jason@redhat.com>
3326
3327         * include/bits/stl_deque.h (_Deque_iterator): Constrain constructor
3328         for conversion to const_iterator.  Add defaulted copy ops.
3329         * libsupc++/new (bad_alloc): Add defaulted copy ops.
3330         * libsupc++/exception.h (exception): Add defaulted copy ops.
3331         * include/std/system_error (system_error): Add defaulted copy ops.
3332         * include/std/stdexcept (domain_error, invalid_argument)
3333         (length_error, out_of_range, range_error, overflow_error)
3334         (underflow_error): Add defaulted copy ops.
3335         * include/bits/stl_iterator.h (reverse_iterator): Add defaulted
3336         copy assignment.
3337         * include/bits/allocator.h (allocator): Add defaulted copy assignment.
3338         * include/ext/throw_allocator.h (condition_base): Add defaulted
3339         default and copy ctor and copy assignment.
3340
3341 2018-05-18  Jonathan Wakely  <jwakely@redhat.com>
3342
3343         PR libstdc++/85098
3344         * include/bits/regex.h [__cplusplus < 201703L] (basic_regex::icase)
3345         (basic_regex::nosubs, basic_regex::optimize, basic_regex::collate)
3346         (basic_regex::ECMAScript, basic_regex::basic, basic_regex::extended)
3347         (basic_regex::awk, basic_regex::grep, basic_regex::egrep): Add
3348         definitions.
3349         * include/bits/regex_automaton.h (_NFA::_M_insert_state): Adjust
3350         whitespace.
3351         * include/bits/regex_compiler.tcc (__INSERT_REGEX_MATCHER): Add
3352         braces around body of do-while.
3353         * testsuite/28_regex/basic_regex/85098.cc: New
3354
3355 2018-05-17  Jonathan Wakely  <jwakely@redhat.com>
3356
3357         PR libstdc++/85818
3358         * src/filesystem/path.cc (path::preferred_separator): Add used
3359         attribute.
3360         * testsuite/experimental/filesystem/path/preferred_separator.cc: New.
3361
3362         PR libstdc++/85812
3363         * libsupc++/cxxabi_init_exception.h (__cxa_free_exception): Declare.
3364         * libsupc++/exception_ptr.h (make_exception_ptr) [__cpp_exceptions]:
3365         Refactor to separate non-throwing and throwing implementations.
3366         [__cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI]: Deallocate the memory
3367         if constructing the object throws.
3368
3369 2018-05-15  Jonathan Wakely  <jwakely@redhat.com>
3370
3371         PR libstdc++/85749
3372         * include/bits/random.h (__detail::__is_seed_seq): New SFINAE helper.
3373         (linear_congruential_engine, mersenne_twister_engine)
3374         (subtract_with_carry_engine, discard_block_engine)
3375         (independent_bits_engine, shuffle_order_engine): Use __is_seed_seq to
3376         constrain function templates taking seed sequences.
3377         * include/bits/random.tcc (linear_congruential_engine::seed(_Sseq&))
3378         (mersenne_twister_engine::seed(_Sseq&))
3379         (subtract_with_carry_engine::seed(_Sseq&)): Change return types to
3380         match declarations.
3381         * include/ext/random (simd_fast_mersenne_twister_engine): Use
3382         __is_seed_seq to constrain function templates taking seed sequences.
3383         * include/ext/random.tcc (simd_fast_mersenne_twister_engine::seed):
3384         Change return type to match declaration.
3385         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
3386         New.
3387         * testsuite/26_numerics/random/independent_bits_engine/cons/
3388         seed_seq2.cc: New.
3389         * testsuite/26_numerics/random/linear_congruential_engine/cons/
3390         seed_seq2.cc: New.
3391         * testsuite/26_numerics/random/mersenne_twister_engine/cons/
3392         seed_seq2.cc: New.
3393         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
3394         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
3395         New.
3396         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/
3397         seed_seq2.cc: New.
3398         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/
3399         seed_seq2.cc: New.
3400
3401         PR libstdc++/83891
3402         * include/bits/fs_path.h (path::is_absolute()): Use same definition
3403         for all operating systems.
3404         * include/experimental/bits/fs_path.h (path::is_absolute()): Likewise.
3405         * testsuite/27_io/filesystem/path/query/is_absolute.cc: New.
3406         * testsuite/27_io/filesystem/path/query/is_relative.cc: Fix comment.
3407         * testsuite/experimental/filesystem/path/query/is_absolute.cc: New.
3408
3409         * testsuite/27_io/filesystem/path/decompose/extension.cc: Remove
3410         unused <vector> header.
3411         * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
3412         * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
3413         * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
3414         * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
3415         * testsuite/27_io/filesystem/path/query/has_relative_path.cc:
3416         Likewise.
3417         * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
3418         Likewise.
3419         * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
3420         * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
3421         * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
3422         * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
3423         * testsuite/experimental/filesystem/path/decompose/extension.cc:
3424         Likewise.
3425         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
3426         * testsuite/experimental/filesystem/path/query/has_extension.cc:
3427         Likewise.
3428         * testsuite/experimental/filesystem/path/query/has_filename.cc:
3429         Likewise.
3430         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
3431         Likewise.
3432         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
3433         Likewise.
3434         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
3435         Likewise.
3436         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
3437         Likewise.
3438         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
3439         Likewise.
3440         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
3441         * testsuite/experimental/filesystem/path/query/is_relative.cc:
3442         Likewise.
3443
3444         PR libstdc++/84159
3445         * include/bits/fs_path.h (path::operator/=, path::append): Construct
3446         temporary path before calling _M_append.
3447         (path::_M_append): Change parameter to path and implement C++17
3448         semantics.
3449         * testsuite/27_io/filesystem/path/append/path.cc: Add helper function
3450         and more examples from the standard.
3451         * testsuite/27_io/filesystem/path/append/source.cc: New.
3452         * testsuite/27_io/filesystem/path/decompose/filename.cc: Add comment.
3453         * testsuite/27_io/filesystem/path/nonmember/append.cc: New.
3454
3455         * include/std/variant (__gen_vtable_impl::__visit_invoke): Qualify
3456         __invoke to prevent ADL.
3457
3458 2018-05-14  Jonathan Wakely  <jwakely@redhat.com>
3459
3460         PR libstdc++/81256
3461         * include/bits/fstream.tcc (basic_filebuf::close): Do not swallow
3462         exceptions from _M_terminate_output().
3463         * include/std/fstream (basic_filebuf::~basic_filebuf): Swallow any
3464         exceptions from close().
3465         * testsuite/27_io/basic_filebuf/close/81256.cc: New.
3466
3467         * include/bits/valarray_array.h (__valarray_get_memory): Remove.
3468         (__valarray_get_storage): Call operator new directly. Remove ignored
3469         top-level restrict qualifier and add malloc attribute instead.
3470         (_Array<_Tp>::_Array(size_t)): Remove unused constructor.
3471
3472         PR libstdc++/67554
3473         * include/bits/valarray_array.h (_Array_copy_ctor<_Tp, true>)
3474         (_Array_copier<_Tp, true>): Do not pass null pointers to memcpy.
3475
3476         PR libstdc++/82966
3477         * include/bits/node_handle.h (_Node_handle_common::_M_swap): Use value
3478         instead of type.
3479         * testsuite/23_containers/set/modifiers/node_swap.cc: New.
3480
3481 2018-05-13  Ville Voutilainen  <ville.voutilainen@gmail.com>
3482
3483         PR libstdc++/80165
3484         * testsuite/20_util/variant/80165.cc: New.
3485
3486 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
3487
3488         * doc/xml/faq.xml: Link to C++17 status. Add note to outdated answer.
3489         * doc/xml/manual/debug_mode.xml: Add array and forward_list to list
3490         of C++11 containers with Debug Mode support.
3491         * doc/xml/manual/using.xml: Document Dual ABI for ios_base::failure.
3492         * doc/html/*: Regenerate.
3493
3494 2018-05-10  Jason Merrill  <jason@redhat.com>
3495
3496         * include/bits/regex_compiler.h (_S_cache_size): Change from
3497         function to variable.
3498
3499 2018-05-10  Edward Smith-Rowland  <3dw4rd@verizon.net>
3500
3501         PR libstdc++/83140 - assoc_legendre returns negated value when m is odd
3502         * include/tr1/legendre_function.tcc (__assoc_legendre_p): Add __phase
3503         argument defaulted to +1.  Doxy comments on same.
3504         * testsuite/special_functions/02_assoc_legendre/
3505         check_value.cc: Regen.
3506         * testsuite/tr1/5_numerical_facilities/special_functions/
3507         02_assoc_legendre/check_value.cc: Regen.
3508
3509 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
3510
3511         PR libstdc++/85729
3512         * include/bits/c++config.h (__replacement_assert): Add linkage
3513         specification.
3514         * include/bits/std_abs.h: Add comment to closing brace of block.
3515         * include/c_global/cstddef: Add linkage specification.
3516         * include/c_global/cstring: Likewise.
3517         * include/c_global/cwchar: Likewise.
3518
3519 2018-05-09  François Dumont  <fdumont@gcc.gnu.org>
3520
3521         * include/debug/safe_iterator.h (_Safe_iterator<>::_M_constant()):
3522         Rename in...
3523         (_Safe_iterator<>::_S_constant()): ...that.
3524         * include/debug/safe_local_iterator.h
3525         (_Safe_local_iterator<>::_M_constant()): Rename in...
3526         (_Safe_local_iterator<>::_S_constant()): ...that.
3527         * include/debug/formatter.h: Remove bits/cpp_type_traits.h include.
3528         (_Iterator_state::__rbegin): New.
3529         (_Iterator_state::__rmiddle): New.
3530         (_Iterator_state::__rend): New.
3531         (_Parameter::_Parameter(const _Safe_iterator<>&, const char*,
3532         _Is_iterator)): Use _Safe_iterator<>::_S_constant. Grab normal underlying
3533         iterator type.
3534         (_Parameter::_Parameter(const _Safe_local_iterator<>&, const char*,
3535         _Is_iterator)): Likewise.
3536         (_Parameter::_S_reverse_state(_Iterator_state)): New.
3537         (_Parameter(__gnu_cxx::__normal_iterator<> const&, const char*,
3538         _Is_iterator)): New.
3539         (_Parameter(std::reverse_iterator<> const&, const char*,
3540         _Is_iterator)): New.
3541         (_Parameter(std::reverse_iterator<_Safe_iterator<>> const&,
3542         const char*, _Is_iterator)): New.
3543         (_Parameter(std::move_iterator<> const&, const char*, _Is_iterator):
3544         New.
3545         (_Parameter(std::move_iterator<_Safe_iterator<>> const&, const char*,
3546         _Is_iterator)): New.
3547         * testsuite/24_iterators/move_iterator/debug_neg.cc: New.
3548         * testsuite/24_iterators/normal_iterator/debug_neg.cc: New.
3549         * testsuite/24_iterators/reverse_iterator/debug_neg.cc: New.
3550
3551 2018-05-09  Jonathan Wakely  <jwakely@redhat.com>
3552
3553         * include/bits/std_function.h (_Base_manager::_M_get_pointer):
3554         Use constexpr if in C++17 mode.
3555         (_Base_manager::_M_clone(_Any_data&, const _Any_data&, true_type)):
3556         Copy from const object.
3557         * testsuite/20_util/function/cons/non_copyconstructible.cc: New.
3558
3559 2018-05-08  François Dumont  <fdumont@gcc.gnu.org>
3560
3561         * src/c++11/debug.cc [_GLIBCXX_HAVE_EXECINFO_H]: Include execinfo.h.
3562         [_GLIBCXX_HAVE_EXECINFO_H](_Error_formatter::_M_error): Render
3563         backtrace.
3564
3565         * include/debug/macros.h (__glibcxx_check_valid_range_at): New.
3566         * include/debug/functions.h (__check_valid_range): Use latter.
3567         * include/debug/macros.h (__glibcxx_check_valid_constructor_range): New,
3568         use latter.
3569         * include/debug/deque
3570         (deque::deque<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
3571         * include/debug/forward_list
3572         (forward_list::forward_list<_Iter>(_Iter, _Iter, const _Alloc&)):
3573         Likewise.
3574         * include/debug/list
3575         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3576         * include/debug/list
3577         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3578         * include/debug/map.h
3579         (map::map<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3580         (map::map<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
3581         Likewise.
3582         * include/debug/multimap.h
3583         (multimap::multimap<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3584         (multimap::multimap<_Iter>(_Iter, _Iter, const _Compare&,
3585         const _Alloc&)): Likewise.
3586         * include/debug/set.h
3587         (set::set<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3588         (set::set<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
3589         Likewise.
3590         * include/debug/multiset.h
3591         (multiset::multiset<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
3592         (multiset::multiset<_Iter>(_Iter, _Iter, const _Compare&,
3593         const _Alloc&)): Likewise.
3594         * include/debug/string
3595         (basic_string::basic_string<_Iter>(_Iter, _Iter, const _Alloc&)):
3596         Likewise.
3597         * include/debug/unordered_map
3598         (unordered_map::unordered_map<_Iter>(_Iter, _Iter, const _Alloc&)):
3599         Likewise.
3600         (unordered_multimap::unordered_multimap<_Iter>(_Iter, _Iter,
3601         const _Alloc&)): Likewise.
3602         * include/debug/unordered_set
3603         (unordered_set::unordered_set<_Iter>(_Iter, _Iter, const _Alloc&)):
3604         Likewise.
3605         (unordered_multiset::unordered_multiset<_Iter>(_Iter, _Iter,
3606         const _Alloc&)): Likewise.
3607         * include/debug/vector
3608         (vector::vector<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
3609
3610         * include/debug/formatter.h (_Error_formatter::_M_function): New.
3611         (_Error_formatter(const char*, unsigned int)): Adapt.
3612         (_Error_formatter::_M_at): Rename in...
3613         (_Error_formatter::_S_at): ...that and adapt.
3614         * include/debug/macros.h (_GLIBCXX_DEBUG_VERIFY_AT_F): New.
3615         (_GLIBCXX_DEBUG_VERIFY_AT, _GLIBCXX_DEBUG_VERIFY): Adapt.
3616         * src/c++11/debug.cc (_Error_formatter::_M_error): Render _M_function
3617         when available.
3618
3619 2018-05-08  Jonathan Wakely  <jwakely@redhat.com>
3620
3621         * include/bits/regex_automaton.h (_NFA_base::_M_paren_stack, _NFA):
3622         Use normal std::vector even in Debug Mode.
3623
3624         PR libstdc++/85672
3625         * include/Makefile.am [!ENABLE_FLOAT128]: Change c++config.h entry
3626         to #undef _GLIBCXX_USE_FLOAT128 instead of defining it to zero.
3627         * include/Makefile.in: Regenerate.
3628         * include/bits/c++config (_GLIBCXX_USE_FLOAT128): Move definition
3629         within conditional block.
3630
3631 2018-05-07  Jonathan Wakely  <jwakely@redhat.com>
3632
3633         * doc/xml/manual/using.xml (table.cmd_options): Document that the
3634         C++17 Filesystem implementation also needs -lstdc++fs.
3635
3636         PR libstdc++/85671
3637         * include/bits/fs_path.h (operator/): Permit copy elision.
3638         * include/experimental/bits/fs_path.h (operator/): Likewise.
3639
3640 2018-05-07  Edward Smith-Rowland  <3dw4rd@verizon.net>
3641
3642         Moar PR libstdc++/80506
3643         * include/bits/random.tcc (gamma_distribution::__generate_impl()):
3644         Fix magic number used in loop condition.
3645
3646 2018-05-04  Jonathan Wakely  <jwakely@redhat.com>
3647
3648         PR libstdc++/85642 fix is_nothrow_default_constructible<optional<T>>
3649         * include/std/optional (_Optional_payload): Add noexcept to default
3650         constructor. Re-indent.
3651         (_Optional_payload<_Tp, true, true, true>): Likewise. Add noexcept to
3652         constructor for copying disengaged payloads.
3653         (_Optional_payload<_Tp, true, false, true>): Likewise.
3654         (_Optional_payload<_Tp, true, true, false>): Likewise.
3655         (_Optional_payload<_Tp, true, false, false>): Likewise.
3656         * testsuite/20_util/optional/cons/85642.cc: New.
3657         * testsuite/20_util/optional/cons/value_neg.cc: Adjust dg-error lines.
3658
3659 2018-05-03  Jonathan Wakely  <jwakely@redhat.com>
3660
3661         PR libstdc++/82644
3662         * include/tr1/cmath [__STRICT_ANSI__] (hypergf, hypergl, hyperg): Use
3663         inline definitions instead of using-declarations.
3664         [__STRICT_ANSI__] (conf_hypergf, conf_hypergl, conf_hyperg): Likewise.
3665         * testsuite/tr1/5_numerical_facilities/special_functions/
3666         07_conf_hyperg/compile_cxx17.cc: New.
3667         * testsuite/tr1/5_numerical_facilities/special_functions/
3668         17_hyperg/compile_cxx17.cc: New.
3669
3670         PR libstdc++/84769
3671         * include/std/variant (visit): Qualify std::get call.
3672
3673         PR libstdc++/85632 use uintmax_t for arithmetic
3674         * src/filesystem/ops.cc (experimental::filesystem::space): Perform
3675         arithmetic in result type.
3676         * src/filesystem/std-ops.cc (filesystem::space): Likewise.
3677         * testsuite/27_io/filesystem/operations/space.cc: Check total capacity
3678         is greater than free space.
3679         * testsuite/experimental/filesystem/operations/space.cc: New.
3680
3681         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc: New.
3682         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
3683         New.
3684         * testsuite/20_util/remove_cvref/value.cc: New.
3685         * testsuite/20_util/remove_cvref/value_ext.cc: New.
3686
3687         PR libstdc++/84087 LWG DR 2268 basic_string default arguments
3688         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI=1]
3689         (append(const basic_string&, size_type, size_type)
3690         (assign(const basic_string&, size_type, size_type)
3691         (insert(size_type, const basic_string&, size_type, size_type)
3692         (replace(size_type,size_type,const basic_string&,size_type,size_type)
3693         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
3694         Add default arguments (LWG 2268).
3695         [_GLIBCXX_USE_CXX11_ABI=0]
3696         (append(const basic_string&, size_type, size_type)
3697         (assign(const basic_string&, size_type, size_type)
3698         (insert(size_type, const basic_string&, size_type, size_type)
3699         (replace(size_type,size_type,const basic_string&,size_type,size_type)
3700         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
3701         Likewise.
3702         * testsuite/21_strings/basic_string/dr2268.cc: New test.
3703
3704         PR libstdc++/84535
3705         * include/std/thread (thread::__not_same): New SFINAE helper.
3706         (thread::thread(_Callable&&, _Args&&...)): Add SFINAE constraint that
3707         first argument is not a std::thread. Add static assertion to check
3708         INVOKE expression is valid.
3709         (thread::thread(thread&), thread::thread(const thread&&)): Remove.
3710         (thread::_Invoke::_M_invoke, thread::_Invoke::operator()): Use
3711         __invoke_result for return types and remove exception specifications.
3712         * testsuite/30_threads/thread/cons/84535.cc: New.
3713
3714         * include/std/future (__async_result_of): Use __invoke_result instead
3715         of result_of.
3716
3717         * include/std/any (any_cast): Use __remove_cvref_t.
3718         * include/std/tuple (__make_tuple): Likewise.
3719         * include/std/type_traits (__remove_cvref_t): Define.
3720         (__result_of_memobj, __result_of_memfun): Use __remove_cvref_t.
3721         [__cplusplus > 201703L] (remove_cvref, remove_cvref_t): Define.
3722         * include/std/variant (__erased_hash): Use __remove_cvref_t.
3723
3724 2018-05-02  François Dumont  <fdumont@gcc.gnu.org>
3725
3726         * include/bits/deque.tcc (deque<>::_M_assign_aux): Cast to void to
3727         ensure overloaded comma not used.
3728         * include/bits/list.tcc (list<>::_M_assign_dispatch): Likewise.
3729         * include/bits/vector.tcc (vector<>::_M_assign_aux): Likewise.
3730         * include/bits/stl_bvector.h (vector<bool>::_M_assign_aux): Likewise.
3731         * testsuite/23_containers/deque/modifiers/assign/1.cc: New.
3732         * testsuite/23_containers/list/modifiers/assign/1.cc: New.
3733         * testsuite/23_containers/vector/bool/modifiers/assign/1.cc: New.
3734         * testsuite/23_containers/vector/modifiers/assign/1.cc: New.
3735
3736 2018-05-02  Jonathan Wakely  <jwakely@redhat.com>
3737
3738         PR libstdc++/68197
3739         * include/bits/ios_base.h (ios_base::iword, ios_base::pword): Cast
3740         indices to unsigned.
3741         * src/c++11/ios.cc (ios_base::_M_grow_words): Treat negative indices
3742         as failure. Refactor error handling.
3743         * testsuite/27_io/ios_base/storage/68197.cc: New.
3744
3745         PR libstdc++/57997
3746         PR libstdc++/83860
3747         * include/bits/gslice_array.h (gslice_array): Define default
3748         constructor as deleted, as per C++11 standard.
3749         * include/bits/mask_array.h (mask_array): Likewise.
3750         * include/bits/slice_array.h (slice_array): Likewise.
3751         * include/bits/valarray_after.h (_GBase, _GClos, _IBase, _IClos): Move
3752         to namespace __detail.
3753         (_GBase::_M_expr, _IBase::_M_expr): Use _ValArrayRef for type of data
3754         members.
3755         * include/bits/valarray_before.h (_ValArrayRef): New helper for type
3756         of data members in closure objects.
3757         (_FunBase, _ValFunClos, _RefFunClos, _UnBase, _UnClos, _BinBase)
3758         (_BinBase2, _BinBase1, _BinClos, _SBase, _SClos): Move to namespace
3759         __detail.
3760         (_FunBase::_M_expr, _UnBase::_M_expr, _BinBase::_M_expr1)
3761         (_BinBase::_M_expr2, _BinBase2::_M_expr1, _BinBase1::_M_expr2)
3762         (_SBase::_M_expr): Use _ValArrayRef for type of data members.
3763         * include/std/valarray (_UnClos, _BinClos, _SClos, _GClos, _IClos)
3764         (_ValFunClos, _RefFunClos): Move to namespace __detail and add
3765         using-declarations to namespace std.
3766         * testsuite/26_numerics/valarray/83860.cc: New.
3767
3768         * testsuite/backward/strstream_move.cc: Remove duplicate function
3769         call.
3770
3771         PR libstdc++/69608
3772         * include/backward/strstream (strstreambuf): Define move constructor
3773         and move assignment operator.
3774         (istrstream, ostrstream, strstream): Likewise.
3775         * testsuite/backward/strstream_move.cc: New.
3776
3777 2018-05-01  Tulio Magno Quites Machado Filho  <tuliom@linux.vnet.ibm.com>
3778
3779         PR libstdc++/84654
3780         * acinclude.m4: Set ENABLE_FLOAT128 instead of _GLIBCXX_USE_FLOAT128.
3781         * config.h.in: Remove references to _GLIBCXX_USE_FLOAT128.
3782         * configure: Regenerate.
3783         * include/Makefile.am: Replace the value of _GLIBCXX_USE_FLOAT128
3784         based on ENABLE_FLOAT128.
3785         * include/Makefile.in: Regenerate.
3786         * include/bits/c++config: Define _GLIBCXX_USE_FLOAT128.
3787         [!defined(__FLOAT128__) && !defined(__SIZEOF_FLOAT128__)]: Undefine
3788         _GLIBCXX_USE_FLOAT128.
3789
3790 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
3791
3792         * configure: Regenerated.
3793
3794 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
3795
3796         * configure: Regenerated.
3797
3798 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
3799             Jakub Jelinek  <jakub@redhat.com>
3800
3801         PR libstdc++/85442
3802         * src/c++11/Makefile.am: Don't generate debuginfo again for
3803         cxx11-ios_failure-lt.s and cxx11-ios_failure.s files.
3804         * src/c++11/Makefile.in: Regenerate.
3805
3806 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
3807
3808         PR libstdc++/84442
3809         * testsuite/30_threads/thread/cons/terminate.cc
3810         [!_GLIBCXX_USE_C99_STDLIB] : Use _exit or std::exit instead of _Exit.
3811
3812 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
3813
3814         PR jit/85384
3815         * configure: Regenerate.
3816
3817 2018-04-16  Jonathan Wakely  <jwakely@redhat.com>
3818
3819         * testsuite/experimental/filesystem/file_status/1.cc: Add
3820         -DUSE_FILESYSTEM_TS to dg-options.
3821         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
3822         Likewise.
3823         * testsuite/experimental/filesystem/iterators/pop.cc: Likewise.
3824         * testsuite/experimental/filesystem/iterators/
3825         recursive_directory_iterator.cc: Likewise.
3826         * testsuite/experimental/filesystem/operations/absolute.cc: Likewise.
3827         * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
3828         * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
3829         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
3830         * testsuite/experimental/filesystem/operations/create_directories.cc:
3831         Likewise.
3832         * testsuite/experimental/filesystem/operations/create_directory.cc:
3833         Likewise.
3834         * testsuite/experimental/filesystem/operations/create_symlink.cc:
3835         Likewise.
3836         * testsuite/experimental/filesystem/operations/current_path.cc:
3837         Likewise.
3838         * testsuite/experimental/filesystem/operations/equivalent.cc: Likewise.
3839         * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
3840         * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
3841         * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
3842         * testsuite/experimental/filesystem/operations/last_write_time.cc:
3843         Likewise.
3844         * testsuite/experimental/filesystem/operations/permissions.cc:
3845         Likewise.
3846         * testsuite/experimental/filesystem/operations/read_symlink.cc:
3847         Likewise.
3848         * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
3849         * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
3850         * testsuite/experimental/filesystem/operations/status.cc: Likewise.
3851         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
3852         Likewise.
3853         * testsuite/experimental/filesystem/path/append/path.cc: Likewise.
3854         * testsuite/experimental/filesystem/path/assign/assign.cc: Likewise.
3855         * testsuite/experimental/filesystem/path/assign/copy.cc: Likewise.
3856         * testsuite/experimental/filesystem/path/compare/compare.cc: Likewise.
3857         * testsuite/experimental/filesystem/path/compare/path.cc: Likewise.
3858         * testsuite/experimental/filesystem/path/compare/strings.cc: Likewise.
3859         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
3860         * testsuite/experimental/filesystem/path/concat/strings.cc: Likewise.
3861         * testsuite/experimental/filesystem/path/construct/copy.cc: Likewise.
3862         * testsuite/experimental/filesystem/path/construct/default.cc:
3863         Likewise.
3864         * testsuite/experimental/filesystem/path/construct/locale.cc: Likewise.
3865         * testsuite/experimental/filesystem/path/construct/range.cc: Likewise.
3866         * testsuite/experimental/filesystem/path/construct/string_view.cc:
3867         Likewise.
3868         * testsuite/experimental/filesystem/path/decompose/extension.cc:
3869         Likewise.
3870         * testsuite/experimental/filesystem/path/decompose/filename.cc:
3871         Likewise.
3872         * testsuite/experimental/filesystem/path/decompose/parent_path.cc:
3873         Likewise.
3874         * testsuite/experimental/filesystem/path/decompose/relative_path.cc:
3875         Likewise.
3876         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
3877         Likewise.
3878         * testsuite/experimental/filesystem/path/decompose/root_name.cc:
3879         Likewise.
3880         * testsuite/experimental/filesystem/path/decompose/root_path.cc:
3881         Likewise.
3882         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
3883         * testsuite/experimental/filesystem/path/generic/generic_string.cc:
3884         Likewise.
3885         * testsuite/experimental/filesystem/path/itr/traversal.cc: Likewise.
3886         * testsuite/experimental/filesystem/path/modifiers/clear.cc: Likewise.
3887         * testsuite/experimental/filesystem/path/modifiers/make_preferred.cc:
3888         Likewise.
3889         * testsuite/experimental/filesystem/path/modifiers/remove_filename.cc:
3890         Likewise.
3891         * testsuite/experimental/filesystem/path/modifiers/replace_extension.cc:
3892         Likewise.
3893         * testsuite/experimental/filesystem/path/modifiers/replace_filename.cc:
3894         Likewise.
3895         * testsuite/experimental/filesystem/path/modifiers/swap.cc: Likewise.
3896         * testsuite/experimental/filesystem/path/native/string.cc: Likewise.
3897         * testsuite/experimental/filesystem/path/nonmember/hash_value.cc:
3898         Likewise.
3899         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
3900         * testsuite/experimental/filesystem/path/query/has_extension.cc:
3901         Likewise.
3902         * testsuite/experimental/filesystem/path/query/has_filename.cc:
3903         Likewise.
3904         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
3905         Likewise.
3906         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
3907         Likewise.
3908         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
3909         Likewise.
3910         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
3911         Likewise.
3912         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
3913         Likewise.
3914         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
3915         * testsuite/experimental/filesystem/path/query/is_relative.cc:
3916         Likewise.
3917
3918 2018-04-13  Jonathan Wakely  <jwakely@redhat.com>
3919
3920         * src/c++11/Makefile.am: Fix sed command.
3921         * src/c++11/Makefile.in: Regenerate.
3922
3923         * src/c++11/Makefile.am: Rewrite sed rule to be less fragile and to
3924         handle mangled names starting with double underscores on darwin.
3925         * src/c++11/Makefile.in: Regenerate.
3926
3927 2018-04-12  Jonathan Wakely  <jwakely@redhat.com>
3928
3929         * src/c++11/Makefile.am: Fix comment.
3930         * src/c++11/Makefile.in: Regenerate.
3931         * src/c++11/cxx11-ios_failure.cc: Fix comment.
3932         * src/c++98/ios_failure.cc: Likewise.
3933
3934         * src/c++11/ios.cc: Remove redundant macro definition.
3935
3936 2018-04-11  Jonathan Wakely  <jwakely@redhat.com>
3937
3938         * doc/xml/manual/abi.xml: Document header locations in recent
3939         releases.
3940         * doc/xml/manual/evolution.xml: Add API changes since GCC 5.
3941         * doc/xml/manual/spine.xml: Update copyright years.
3942         * doc/xml/manual/strings.xml: Adjust tolower example to avoid
3943         undefined behaviour.
3944         * doc/xml/manual/test.xml: Update outdated notes on VERIFY in tests.
3945         * doc/html/*: Regenerate.
3946
3947 2018-04-10  Jonathan Wakely  <jwakely@redhat.com>
3948
3949         * doc/xml/faq.xml: Update links to archived copy of SGI STL docs.
3950         * doc/xml/manual/backwards_compatibility.xml: Likewise.
3951         * doc/xml/manual/containers.xml: Likewise.
3952         * doc/xml/manual/debug_mode.xml: Likewise.
3953         * doc/xml/manual/extensions.xml: Likewise.
3954         * doc/xml/manual/policy_data_structures_biblio.xml: Likewise.
3955         * doc/xml/manual/using.xml: Likewise.
3956         * doc/xml/manual/utilities.xml: Likewise.
3957
3958         PR libstdc++/85222
3959         * src/c++11/Makefile.am [ENABLE_DUAL_ABI]: Add special rules for
3960         cxx11-ios_failure.cc to rewrite type info for __ios_failure.
3961         * src/c++11/Makefile.in: Regenerate.
3962         * src/c++11/cxx11-ios_failure.cc (__ios_failure, __iosfail_type_info):
3963         New types.
3964         [_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
3965         * src/c++11/ios.cc (__throw_ios_failure): Remove definition.
3966         * src/c++98/ios_failure.cc (__construct_ios_failure)
3967         (__destroy_ios_failure, is_ios_failure_handler): New functions.
3968         [!_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
3969         * testsuite/27_io/ios_base/failure/dual_abi.cc: New.
3970         * testsuite/27_io/basic_ios/copyfmt/char/1.cc: Revert changes to
3971         handler types, to always catch std::ios_base::failure.
3972         * testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
3973         * testsuite/27_io/basic_istream/extractors_arithmetic/char/
3974         exceptions_failbit.cc: Likewise.
3975         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
3976         exceptions_failbit.cc: Likewise.
3977         * testsuite/27_io/basic_istream/extractors_other/char/
3978         exceptions_null.cc: Likewise.
3979         * testsuite/27_io/basic_istream/extractors_other/wchar_t/
3980         exceptions_null.cc: Likewise.
3981         * testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
3982         * testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
3983         * testsuite/27_io/basic_ostream/inserters_other/char/
3984         exceptions_null.cc: Likewise.
3985         * testsuite/27_io/basic_ostream/inserters_other/wchar_t/
3986         exceptions_null.cc: Likewise.
3987         * testsuite/27_io/ios_base/storage/2.cc: Likewise.
3988
3989 2018-04-05  Jonathan Wakely  <jwakely@redhat.com>
3990
3991         * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Qualify
3992         __get calls to avoid ADL and avoid ambiguity due to Clang bug.
3993
3994 2018-04-03  Jonathan Wakely  <jwakely@redhat.com>
3995
3996         PR libstdc++/85183
3997         * include/std/variant (_Move_assign_base::operator=): Fix incorrect
3998         value categories.
3999         * testsuite/20_util/variant/85183.cc: New.
4000
4001 2018-03-26  Jonathan Wakely  <jwakely@redhat.com>
4002
4003         * include/std/variant (__get): Qualify calls to avoid ADL.
4004         (__select_index): Adjust whitespace.
4005         (variant): Add using-declaration to workaround Clang bug.
4006
4007 2018-03-22  Jonathan Wakely  <jwakely@redhat.com>
4008
4009         PR libstdc++/85040
4010         * include/bits/stl_function.h (greater::__not_overloaded)
4011         (less::__not_overloaded, greater_equal::__not_overloaded)
4012         (less_equal::__not_overloaded): Fix ambiguous specializations.
4013         * testsuite/20_util/function_objects/comparisons_pointer.cc: Add
4014         tests for type with overloaded operators.
4015
4016 2018-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
4017
4018         PR libstdc++/77691
4019         * testsuite/experimental/memory_resource/resource_adaptor.cc:
4020         xfail execution on 32-bit Solaris/x86.
4021
4022 2018-03-21  Jonathan Wakely  <jwakely@redhat.com>
4023
4024         * testsuite/20_util/function_objects/comparisons_pointer.cc: Use
4025         VERIFY instead of assert.
4026         * testsuite/20_util/hash/84998.cc: New test.
4027         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc: New
4028         copy of test adjusted for Debug Mode.
4029         * testsuite/23_containers/vector/cons/destructible_neg.cc: Do not run
4030         test in Debug Mode.
4031
4032 2018-03-20  François Dumont  <fdumont@gcc.gnu.org>
4033
4034         PR libstdc++/84998
4035         * include/bits/stl_bvector.h: Fix std::hash friend declaration.
4036         * include/std/bitset: Likewise.
4037         * include/bits/stl_map.h (std::map<>): Fix _Rb_tree_merge_helper friend
4038         declaration.
4039         * include/bits/stl_multimap.h (std::multimap<>): Likewise.
4040         * include/bits/stl_multiset.h (std::multiset<>): Likewise.
4041         * include/bits/stl_set.h (std::set<>): Likewise.
4042         * include/bits/unordered_map.h (std::unordered_map<>): Fix
4043         _Hash_merge_helper friend declaration.
4044         (std::unordered_multimap<>): Likewise.
4045         * include/bits/unordered_set.h (std::unordered_set<>): Likewise.
4046         (std::unordered_multiset<>): Likewise.
4047
4048 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
4049
4050         * doc/xml/api.xml: www.fsf.org has moved to https. Also omit
4051         trailing slash for domain level link.
4052         * doc/xml/faq.xml: Ditto.
4053         * doc/xml/manual/appendix_free.xml (software): Ditto.
4054         * doc/xml/manual/intro.xml: Ditto.
4055         * doc/xml/manual/spine.xml: Ditto.
4056         * doc/xml/spine.xml: Ditto.
4057
4058 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
4059
4060         * doc/xml/manual/documentation_hacking.xml: Adjust link to
4061         docbook.org.
4062
4063 2018-03-17  Jonathan Wakely  <jwakely@redhat.com>
4064
4065         * testsuite/20_util/function_objects/comparisons_pointer.cc: Adjust
4066         to compile as C++98.
4067
4068 2018-03-14  Jonathan Wakely  <jwakely@redhat.com>
4069
4070         PR libstdc++/78420
4071         * include/bits/stl_function.h (greater<_Tp*>, less<_Tp*>)
4072         (greater_equal<_Tp*>, less_equal<_Tp>*): Add partial specializations
4073         to ensure total order for pointers.
4074         (greater<void>, less<void>, greater_equal<void>, less_equal<void>):
4075         Add operator() overloads for pointer arguments and make generic
4076         overloads dispatch to new _S_cmp functions when comparisons would
4077         use built-in operators for pointers.
4078         * testsuite/20_util/function_objects/comparisons_pointer.cc: New.
4079
4080 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
4081
4082         PR libstdc++/84773
4083         PR libstdc++/83662
4084         * crossconfig.m4: Check for aligned_alloc etc. on freebsd and mingw32.
4085         * configure: Regenerate.
4086         * include/c_global/cstdlib [_GLIBCXX_HAVE_ALIGNED_ALLOC]
4087         (aligned_alloc): Add using-declaration.
4088         * testsuite/18_support/aligned_alloc/aligned_alloc.cc: New test.
4089
4090 2018-03-09  François Dumont  <fdumont@gcc.gnu.org>
4091
4092         * python/libstdcxx/v6/printers.py (build_libstdcxx_dictionary):
4093         Fix std::_Fwd_list_iterator and std::_Fwd_list_const_iterator printers
4094         registration.
4095
4096 2018-03-09  Jonathan Wakely  <jwakely@redhat.com>
4097
4098         PR libstdc++/84769
4099         * include/std/variant (get<_Tp, _Types...>, get_if<_Tp, _Types...>):
4100         Qualify calls to get<_Np, Types...> and get_if<_Np, _Types...>.
4101
4102         src/filesystem/ops.cc (create_dir): Pass error_code to is_directory.
4103         src/filesystem/std-ops.cc (create_dir): Likewise.
4104
4105 2018-03-08  François Dumont  <fdumont@gcc.gnu.org>
4106
4107         * python/libstdcxx/v6/printers.py (NodeIteratorPrinter): New.
4108         (StdListIteratorPrinter): Inherit from latter.
4109         (StdFwdListIteratorPrinter): New, inherit from latter.
4110         (StdDebugIteratorPrinter.to_string): Use non-debug iterator printer
4111         when iterator has no associated container.
4112         (build_libstdcxx_dictionary): Add __gnu_cxx::_Fwd_list_iterator and
4113         __gnu_cxx::_Fwd_list_const_iterator printers. Remove __norm namespace
4114         registrations.
4115         * testsuite/libstdc++-prettyprinters/debug.cc: Adapt.
4116         * testsuite/libstdc++-prettyprinters/debug_cxx11.cc: Adapt.
4117
4118 2018-03-06  Ville Voutilainen  <ville.voutilainen@gmail.com>
4119
4120         PR libstdc++/84601
4121         * include/std/optional (_Optional_payload): Split into multiple
4122         specializations that can handle different cases of trivial or
4123         non-trivial assignment operators.
4124         * testsuite/20_util/optional/84601.cc: New.
4125         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
4126
4127 2018-03-02  Jonathan Wakely  <jwakely@redhat.com>
4128
4129         PR libstdc++/84671
4130         * include/bits/parse_numbers.h (_Number_help): Add partial
4131         specialization to handle digit separators. Adjust partial
4132         specialization for recursion temrination to require _Pow == 1ULL.
4133         * testsuite/20_util/duration/literals/84671.cc: New
4134
4135 2018-02-27  Ville Voutilainen  <ville.voutilainen@gmail.com>
4136
4137         Implement the missing bits of LWG 2769
4138         * include/std/any (any_cast(const any&)): Add static_assert.
4139         (any_cast(any&)): Likewise.
4140         (any_cast(any&&)): Likewise, and remove the handling
4141         for copyable-but-not-movable type.
4142         * testsuite/20_util/any/misc/any_cast.cc: Adjust.
4143         * testsuite/20_util/any/misc/any_cast_neg.cc: Likewise, and
4144         add new tests.
4145
4146 2018-02-23  Jonathan Wakely  <jwakely@redhat.com>
4147
4148         PR libstdc++/84532
4149         * include/std/thread (thread::__make_invoker): Construct tuple
4150         directly instead of using make_tuple.
4151         * testsuite/30_threads/async/84532.cc: New.
4152         * testsuite/30_threads/thread/84532.cc: New.
4153
4154 2018-02-20  François Dumont  <fdumont@gcc.gnu.org>
4155
4156         * include/ext/aligned_buffer.h [_GLIBCXX_INLINE_VERSION]
4157         (template<> __aligned_buffer): Define as __aligned_membuf alias.
4158
4159 2018-02-19  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
4160
4161         PR target/84148
4162         * configure: Regenerate.
4163
4164 2018-02-15  Jonathan Wakely  <jwakely@redhat.com>
4165
4166         PR libstdc++/81797
4167         * configure.ac (INCLUDE_DIR_NOTPARALLEL): Define.
4168         * configure: Regenerate.
4169         * include/Makefile.am (INCLUDE_DIR_NOTPARALLEL): Add .NOTPARALLEL when
4170         defined.
4171         * include/Makefile.in: Regenerate.
4172
4173 2018-01-29  Jonathan Wakely  <jwakely@redhat.com>
4174
4175         PR libstdc++/83833
4176         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
4177         Add -ffloat-store to options for m68k and ia32.
4178
4179         * doc/xml/faq.xml: Update copyright years.
4180         * doc/html/*: Regenerate.
4181
4182         PR libstdc++/83658
4183         * include/std/any (any::__do_emplace): Only set _M_manager after
4184         constructing the contained object.
4185         * testsuite/20_util/any/misc/any_cast_neg.cc: Adjust dg-error line.
4186         * testsuite/20_util/any/modifiers/83658.cc: New test.
4187
4188 2018-01-25  Jonathan Wakely  <jwakely@redhat.com>
4189
4190         PR libstdc++/81076
4191         * include/c_global/cstddef (__byte_operand): Define primary template.
4192         * testsuite/18_support/byte/81076.cc: New test.
4193
4194 2018-01-19  Christophe Lyon  <christophe.lyon@linaro.org>
4195
4196         * testsuite/ext/special_functions/airy_ai/check_nan.cc: Fix
4197         dg-options and dg-add-options order.
4198         * testsuite/ext/special_functions/airy_bi/check_nan.cc: Likewise.
4199         * testsuite/ext/special_functions/conf_hyperg/check_nan.cc:
4200         Likewise.
4201         * testsuite/ext/special_functions/hyperg/check_nan.cc: Likewise.
4202         * testsuite/special_functions/01_assoc_laguerre/check_nan.cc:
4203         Likewise.
4204         * testsuite/special_functions/02_assoc_legendre/check_nan.cc:
4205         Likewise.
4206         * testsuite/special_functions/03_beta/check_nan.cc: Likewise.
4207         * testsuite/special_functions/04_comp_ellint_1/check_nan.cc:
4208         Likewise.
4209         * testsuite/special_functions/05_comp_ellint_2/check_nan.cc:
4210         Likewise.
4211         * testsuite/special_functions/06_comp_ellint_3/check_nan.cc:
4212         Likewise.
4213         * testsuite/special_functions/06_comp_ellint_3/pr66689.cc:
4214         Likewise.
4215         * testsuite/special_functions/07_cyl_bessel_i/check_nan.cc:
4216         Likewise.
4217         * testsuite/special_functions/08_cyl_bessel_j/check_nan.cc:
4218         Likewise.
4219         * testsuite/special_functions/09_cyl_bessel_k/check_nan.cc:
4220         Likewise.
4221         * testsuite/special_functions/10_cyl_neumann/check_nan.cc:
4222         Likewise.
4223         * testsuite/special_functions/11_ellint_1/check_nan.cc: Likewise.
4224         * testsuite/special_functions/12_ellint_2/check_nan.cc: Likewise.
4225         * testsuite/special_functions/13_ellint_3/check_nan.cc: Likewise.
4226         * testsuite/special_functions/13_ellint_3/pr66689.cc: Likewise.
4227         * testsuite/special_functions/14_expint/check_nan.cc: Likewise.
4228         * testsuite/special_functions/15_hermite/check_nan.cc: Likewise.
4229         * testsuite/special_functions/16_laguerre/check_nan.cc: Likewise.
4230         * testsuite/special_functions/17_legendre/check_nan.cc: Likewise.
4231         * testsuite/special_functions/18_riemann_zeta/check_nan.cc:
4232         Likewise.
4233         * testsuite/special_functions/19_sph_bessel/check_nan.cc:
4234         Likewise.
4235         * testsuite/special_functions/20_sph_legendre/check_nan.cc:
4236         Likewise.
4237         * testsuite/special_functions/21_sph_neumann/check_nan.cc:
4238         Likewise.
4239
4240 2018-01-18  Uros Bizjak  <ubizjak@gmail.com>
4241
4242         * configure.ac (AC_CHECK_HEADERS): Add linux/types.h.  Conditionally
4243         include linux/types.h when checking linux/random.h header.
4244         * config.h.in: Regenerate.
4245         * configure: Ditto.
4246         * src/c++11/random.cc: Conditionally include linux/types.h.
4247
4248 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
4249
4250         * testsuite/17_intro/names.cc: Undefine 'y' on SPARC/Linux.
4251
4252 2018-01-16  Jonathan Wakely  <jwakely@redhat.com>
4253
4254         PR libstdc++/83834
4255         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace std::c[a-g]* wildcard
4256         pattern with exact match for std::cerr.
4257
4258 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
4259
4260         PR libstdc++/83833
4261         * include/bits/random.h (chi_squared_distribution::param): Update
4262         gamma distribution parameter.
4263         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc: New
4264         test.
4265
4266         PR libstdc++/83830
4267         * include/std/type_traits (has_unique_object_representations_v): Add
4268         variable template.
4269         * testsuite/20_util/has_unique_object_representations/value.cc: Check
4270         variable template.
4271
4272 2018-01-15  Ville Voutilainen  <ville.voutilainen@gmail.com>
4273
4274         Make optional conditionally
4275         trivially_{copy,move}_{constructible,assignable}
4276         * include/std/optional (_Optional_payload): Fix the comment in
4277         the class head and turn into a primary and one specialization.
4278         (_Optional_payload::_M_engaged): Strike the NSDMI.
4279         (_Optional_payload<_Tp, false>::operator=(const _Optional_payload&)):
4280         New.
4281         (_Optional_payload<_Tp, false>::operator=(_Optional_payload&&)):
4282         Likewise.
4283         (_Optional_payload<_Tp, false>::_M_get): Likewise.
4284         (_Optional_payload<_Tp, false>::_M_reset): Likewise.
4285         (_Optional_base_impl): Likewise.
4286         (_Optional_base): Turn into a primary and three specializations.
4287         (optional(nullopt)): Change the base init.
4288         * testsuite/20_util/optional/assignment/8.cc: New.
4289         * testsuite/20_util/optional/cons/trivial.cc: Likewise.
4290         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
4291
4292 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
4293
4294         PR libstdc++/80276
4295         * python/libstdcxx/v6/printers.py (strip_inline_namespaces): New.
4296         (get_template_arg_list): New.
4297         (StdVariantPrinter._template_args): Remove, use get_template_arg_list
4298         instead.
4299         (TemplateTypePrinter): Rewrite to work with gdb.Type objects instead
4300         of strings and regular expressions.
4301         (add_one_template_type_printer): Adapt to new TemplateTypePrinter.
4302         (FilteringTypePrinter): Add docstring. Match using startswith. Use
4303         strip_inline_namespaces instead of strip_versioned_namespace.
4304         (add_one_type_printer): Prepend namespace to match argument.
4305         (register_type_printers): Add type printers for char16_t and char32_t
4306         string types and for types using cxx11 ABI. Update calls to
4307         add_one_template_type_printer to provide default argument dicts.
4308         * testsuite/libstdc++-prettyprinters/80276.cc: New test.
4309         * testsuite/libstdc++-prettyprinters/whatis.cc: Remove tests for
4310         basic_string<unsigned char> and basic_string<signed char>.
4311         * testsuite/libstdc++-prettyprinters/whatis2.cc: Duplicate whatis.cc
4312         to test local variables, without overriding _GLIBCXX_USE_CXX11_ABI.
4313
4314 2018-01-14  Andreas Schwab  <schwab@linux-m68k.org>
4315
4316         PR libstdc++/81092
4317         * config/abi/post/ia64-linux-gnu/baseline_symbols.txt: Update.
4318
4319 2018-01-13  Tim Shen  <timshen@google.com>
4320
4321         PR libstdc++/83601
4322         * include/bits/regex.tcc (regex_replace): Fix escaping in sed.
4323         * testsuite/28_regex/algorithms/regex_replace/char/pr83601.cc: Tests.
4324         * testsuite/28_regex/algorithms/regex_replace/wchar_t/pr83601.cc: Tests.
4325
4326 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
4327
4328         PR libstdc++/64054
4329         * testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc:
4330         Remove dg-xfail-run-if.
4331
4332 2018-01-10  François Dumont  <fdumont@gcc.gnu.org>
4333
4334         * include/bits/forward_list.h
4335         (_Fwd_list_node_base(_Fwd_list_node_base&&)): New.
4336         (_Fwd_list_node_base& operator=(_Fwd_list_node_base&&)): New.
4337         (_Fwd_list_node_base(const _Fwd_list_node_base&)): Explicit delete.
4338         (_Fwd_list_node_base& operator=(const _Fwd_list_node_base&)): Likewise.
4339         (_Fwd_list_impl()): Add noexcept qualification.
4340         (_Fwd_list_impl(const _Node_alloc_type&)): Delete.
4341         (_Fwd_list_impl(_Fwd_list_impl&&)): New, default.
4342         (_Fwd_list_impl(_Fwd_list_impl&&, _Node_alloc_type&&)): New.
4343         (_Fwd_list_base()): Default.
4344         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&, true_type)): New.
4345         (_Fwd_list_base(_Fwd_list_base&&)): Default.
4346         (forward_list<>()): Default.
4347         (forward_list<>(forward_list&&)): Default.
4348         (forward_list(forward_list&&, _Node_alloc_type&&, false_type)): New.
4349         (forward_list(forward_list&&, _Node_alloc_type&&, true_type)): New.
4350         (forward_list(forward_list&&, const _Alloc&)): Adapt to use latters.
4351         * include/bits/forward_list.tcc
4352         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&)): Adapt to use
4353         _M_impl._M_head move assignment.
4354         (forward_list<>::merge(forward_list<>&&, _Comp)): Likewise.
4355         * testsuite/23_containers/forward_list/allocator/default_init.cc: New.
4356
4357 2018-01-09  Jonathan Wakely  <jwakely@redhat.com>
4358
4359         PR libstdc++/80276
4360         * python/libstdcxx/v6/printers.py (SharedPointerPrinter)
4361         (UniquePointerPrinter): Print correct template argument, not type of
4362         the pointer.
4363         (TemplateTypePrinter._recognizer.recognize): Handle failure to lookup
4364         a type.
4365         * testsuite/libstdc++-prettyprinters/cxx11.cc: Test unique_ptr of
4366         array type.
4367         * testsuite/libstdc++-prettyprinters/cxx17.cc: Test shared_ptr and
4368         weak_ptr of array types.
4369
4370 2018-01-09  François Dumont  <fdumont@gcc.gnu.org>
4371
4372         PR libstdc++/83709
4373         * include/bits/hashtable_policy.h
4374         (__distance_fwd(_Iterator, _Iterator, input_iterator_tag)): Return 1 if
4375         __first != __last.
4376         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, true_type)): New.
4377         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, false_type)):
4378         Add false_type parameter.
4379         (_Insert_base::insert): Adapt.
4380         * include/bits/hashtable.h (_Hashtable::operator=(initializzr_list<>)):
4381         Adapt.
4382         (_Hashtable::_M_insert(_Arg&&, const _NodeGen&, true_type, size_t)):
4383          Add __n_elt parameter, defaulted to 1.
4384         (_Hashtable::_M_insert_unique_node): Likewise. Use it to call rehash
4385         policy _M_need_rehash.
4386         (_Hashtable::_M_merge_unique): Pass target number of elements to add to
4387         produce only 1 rehash if necessary.
4388         * testsuite/23_containers/unordered_map/insert/83709.cc: New.
4389         * testsuite/23_containers/unordered_set/insert/83709.cc: New.
4390
4391 2018-01-09  Juraj Oršulić  <juraj.orsulic@fer.hr>
4392             Jonathan Wakely  <jwakely@redhat.com>
4393
4394         PR libstdc++/59253 (partial)
4395         * python/libstdcxx/v6/printers.py (SmartPtrIterator): Common iterator
4396         type for pointer stored by shared_ptr, weak_ptr and unique_ptr.
4397         (SharedPointerPrinter, UniquePointerPrinter): Treat stored values as
4398         children.
4399         * testsuite/libstdc++-prettyprinters/cxx11.cc: Update expected output
4400         of unique_ptr printer.
4401         * testsuite/libstdc++-prettyprinters/shared_ptr.cc: Update expected
4402         output of shared_ptr printer.
4403
4404 2018-01-05  Jonathan Wakely  <jwakely@redhat.com>
4405
4406         PR libstdc++/83626
4407         * src/filesystem/ops.cc (remove(const path&, error_code&)): Remove
4408         unnecessary symlink_status call.
4409         (remove_all(const path&, error_code&)): Use filesystem::remove.
4410         * src/filesystem/std-ops.cc: Likewise.
4411
4412         PR libstdc++/83279
4413         * src/filesystem/std-ops.cc  (do_copy_file): Use non-null offset with
4414         sendfile.
4415
4416         PR libstdc++/83626
4417         * src/filesystem/ops.cc (remove(const path&, error_code&)): Do not
4418         report an error for ENOENT.
4419         (remove_all(const path&)): Fix type of result variable.
4420         (remove_all(const path&, error_code&)): Use non-throwing increment
4421         for directory iterator. Call POSIX remove directly to avoid redundant
4422         calls to symlink_status. Do not report errors for ENOENT.
4423         * src/filesystem/std-ops.cc: Likewise.
4424         * testsuite/27_io/filesystem/operations/remove_all.cc: Test throwing
4425         overload.
4426         * testsuite/experimental/filesystem/operations/remove_all.cc:
4427         Likewise.
4428
4429 2018-01-04  Jonathan Wakely  <jwakely@redhat.com>
4430
4431         PR libstdc++/83626
4432         * src/filesystem/ops.cc (remove(const path&, error_code&))): Remove
4433         redundant call to ec.clear().
4434         (remove_all(const path&, error_code&))): Do not return an error for
4435         non-existent paths.
4436         * src/filesystem/std-ops.cc: Likewise.
4437         * testsuite/27_io/filesystem/operations/remove.cc: New test.
4438         * testsuite/27_io/filesystem/operations/remove_all.cc: Fix expected
4439         results for non-existent paths.
4440         * testsuite/experimental/filesystem/operations/remove.cc: New test.
4441         * testsuite/experimental/filesystem/operations/remove_all.cc: Fix
4442         expected results for non-existent paths.
4443
4444         * include/bits/fs_ops.h (exists(const path&, error_code&))): Only
4445         check status_known once.
4446         * include/experimental/bits/fs_ops.h: Likewise.
4447
4448         PR libstdc++/83607
4449         * include/std/functional (__is_byte_like): New trait.
4450         (__is_std_equal_to): Remove.
4451         (__boyer_moore_base_t): Use __is_byte_like instead of
4452         __is_std_equal_to.
4453         * include/experimental/functional (__is_std_equal_to): Remove.
4454         (__boyer_moore_base_t): Use __is_byte_like instead of
4455         __is_std_equal_to.
4456         * testsuite/20_util/function_objects/83607.cc: New test.
4457
4458 2018-01-03  Ville Voutilainen  <ville.voutilainen@gmail.com>
4459
4460         Protect optional's deduction guide with the feature macro
4461         * include/std/optional: Use the feature macro.
4462
4463 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
4464
4465         Update copyright years.
4466 \f
4467 Copyright (C) 2018 Free Software Foundation, Inc.
4468
4469 Copying and distribution of this file, with or without modification,
4470 are permitted in any medium without royalty provided the copyright
4471 notice and this notice are preserved.