libstdc++-v3/ChangeLog

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