libstdc++-v3/ChangeLog

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