libstdc++-v3/ChangeLog

   1 2018-07-26  Marc Glisse  <marc.glisse@inria.fr>
   2
   3         * include/bits/stl_vector.h (_Vector_impl_data::_M_copy_data): New.
   4         (_Vector_impl_data::_M_swap_data): Use _M_copy_data.
   5         (vector::_M_move_assign): Reorder the swaps.
   6
   7 2018-07-26  Jonathan Wakely  <jwakely@redhat.com>
   8
   9         PR libstdc++/86676
  10         * testsuite/20_util/monotonic_buffer_resource/release.cc: Request
  11         same alignment for post-release allocation.
  12
  13 2018-07-25  Jonathan Wakely  <jwakely@redhat.com>
  14
  15         PR libstdc++/86676
  16         * testsuite/20_util/monotonic_buffer_resource/release.cc: Allow for
  17         buffer being misaligned and so returned pointer not being at start.
  18
  19         * include/experimental/memory_resource: Include <cstddef> header.
  20
  21         * acinclude.m4 (glibcxx_SUBDIRS): Add src/c++17.
  22         * src/Makefile.am: Add comment.
  23         * src/c++17/Makefile.in: Regenerate.
  24
  25         * include/Makefile.am: Add new <bits/unique_lock.h> header.
  26         * include/Makefile.in: Regenerate.
  27         * include/bits/std_mutex.h [!_GLIBCXX_USE_C99_STDINT_TR1] (mutex)
  28         (lock_guard): Define independent of _GLIBCXX_USE_C99_STDINT_TR1.
  29         (unique_lock): Move definition to ...
  30         * include/bits/unique_lock.h: New header.
  31         [!_GLIBCXX_USE_C99_STDINT_TR1] (unique_lock): Define unconditionally.
  32         [_GLIBCXX_USE_C99_STDINT_TR1] (unique_lock(mutex_type&, time_point))
  33         (unique_lock(mutex_type&, duration), unique_lock::try_lock_until)
  34         (unique_lock::try_lock_for): Define only when <chrono> is usable.
  35         * include/std/condition_variable: Include <bits/unique_lock.h>.
  36         * include/std/mutex: Likewise.
  37
  38 2018-07-24  Jonathan Wakely  <jwakely@redhat.com>
  39
  40         * config/abi/pre/gnu.ver: Export new symbols.
  41         * configure: Regenerate.
  42         * include/Makefile.am: Add new <memory_resource> header.
  43         * include/Makefile.in: Regenerate.
  44         * include/precompiled/stdc++.h: Include <memory_resource> for C++17.
  45         * include/std/memory_resource: New header.
  46         (memory_resource, polymorphic_allocator, new_delete_resource)
  47         (null_memory_resource, set_default_resource, get_default_resource)
  48         (pool_options, monotonic_buffer_resource): Define.
  49         * src/Makefile.am: Add c++17 directory.
  50         * src/Makefile.in: Regenerate.
  51         * src/c++11/Makefile.am: Fix comment.
  52         * src/c++17/Makefile.am: Add makefile for new sub-directory.
  53         * src/c++17/Makefile.in: Generate.
  54         * src/c++17/memory_resource.cc: New.
  55         (newdel_res_t, null_res_t, constant_init, newdel_res, null_res)
  56         (default_res, new_delete_resource, null_memory_resource)
  57         (set_default_resource, get_default_resource): Define.
  58         * testsuite/20_util/memory_resource/1.cc: New test.
  59         * testsuite/20_util/memory_resource/2.cc: New test.
  60         * testsuite/20_util/monotonic_buffer_resource/1.cc: New test.
  61         * testsuite/20_util/monotonic_buffer_resource/allocate.cc: New test.
  62         * testsuite/20_util/monotonic_buffer_resource/deallocate.cc: New test.
  63         * testsuite/20_util/monotonic_buffer_resource/release.cc: New test.
  64         * testsuite/20_util/monotonic_buffer_resource/upstream_resource.cc:
  65         New test.
  66         * testsuite/20_util/polymorphic_allocator/1.cc: New test.
  67         * testsuite/20_util/polymorphic_allocator/resource.cc: New test.
  68         * testsuite/20_util/polymorphic_allocator/select.cc: New test.
  69         * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
  70         Define concrete memory resource for testing.
  71         (__gnu_test::default_resource_mgr): Define RAII helper for changing
  72         default resource.
  73
  74         PR libstdc++/86658
  75         * include/bits/stl_algobase.h (__niter_wrap<_Iterator>): Pass unused
  76         parameter by reference, to avoid copying invalid iterators.
  77         * testsuite/25_algorithms/copy/86658.cc: New test.
  78
  79         * include/std/bit (__countl_zero, __countr_zero, __popcount): Use
  80         local variables for number of digits instead of type aliases.
  81         (__log2p1): Remove redundant branch also checked in __countl_zero.
  82
  83         * include/bits/uses_allocator.h (__is_erased_or_convertible): Reorder
  84         conditions. Add comments.
  85         * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error line.
  86         * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
  87         * testsuite/20_util/scoped_allocator/69293_neg.cc: Likewise.
  88
  89         * include/bits/uses_allocator.h (__is_erased_or_convertible): Remove.
  90         (__uses_allocator_helper): Check conditions directly instead of
  91         using __is_erased_or_convertible.
  92
  93         * include/experimental/memory_resource: Adjust comments and
  94         whitespace.
  95         (__resource_adaptor_imp): Add second template parameter for type of
  96         memory resource base class.
  97         (memory_resource): Define default constructor, destructor, copy
  98         constructor and copy assignment operator as defaulted.
  99
 100         PR libstdc++/70966
 101         * include/experimental/memory_resource (__get_default_resource): Use
 102         placement new to create an object with dynamic storage duration.
 103
 104 2018-07-23  Jonathan Wakely  <jwakely@redhat.com>
 105
 106         PR libstdc++/70940
 107         * include/experimental/memory_resource
 108         (__resource_adaptor_common::_AlignMgr::_M_unadjust): Add assertion.
 109         (__resource_adaptor_common::__guaranteed_alignment): New helper to
 110         give maximum alignment an allocator guarantees. Specialize for known
 111         allocators using new and malloc.
 112         (__resource_adaptor_imp::do_allocate): Use __guaranteed_alignment.
 113         (__resource_adaptor_imp::do_deallocate): Likewise.
 114         * testsuite/experimental/memory_resource/new_delete_resource.cc:
 115         Check that new and delete are called with expected sizes.
 116
 117 2018-07-20  Jonathan Wakely  <jwakely@redhat.com>
 118
 119         PR libstdc++/86595
 120         * include/bits/fs_dir.h (directory_entry::refresh(error_code&)): Add
 121         noexcept.
 122
 123 2018-07-20  Fangrui Song  <maskray@google.com>
 124
 125         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Use
 126         _GLIBCXX_VISIBILITY(default).
 127
 128 2018-07-20  Jonathan Wakely  <jwakely@redhat.com>
 129
 130         PR libstdc++/86603
 131         * include/std/version: Move __cpp_lib_list_remove_return_type macro.
 132
 133 2018-07-19  Jonathan Wakely  <jwakely@redhat.com>
 134
 135         * include/std/type_traits (__is_member_object_pointer_helper): Use
 136         __not_<is_function<_Tp>>::type instead of integral_constant.
 137         (__is_member_function_pointer_helper): Likewise for
 138         is_function<_Tp>::type.
 139         (is_compund): Likewise for __not_<is_fundamental<_Tp>>::type.
 140         (__do_is_nt_destructible_impl): Use __bool_constant and reindent.
 141         (is_trivially_constructible): Remove redundant use of
 142         is_constructible.
 143         (__is_trivially_copy_assignable_impl): Remove redundant use of
 144         is_copy_assignable.
 145         (__is_trivially_move_assignable_impl): Remove redundant use of
 146         is_move_assignable.
 147         (is_trivially_destructible): Use __bool_constant.
 148         * testsuite/20_util/is_trivially_assignable/value.cc: Add some more
 149         tests for scalar types.
 150
 151 2018-07-19  Glen Joseph Fernandes  <glenjofe@gmail.com>
 152
 153         * include/bits/stl_algobase.h (__copy_move_a): Used
 154         __is_trivially_copyable.
 155         (__copy_move_backward_a): Likewise.
 156         * testsuite/20_util/specialized_algorithms/uninitialized_copy/1.cc:
 157         New test.
 158
 159 2018-07-17  Jonathan Wakely  <jwakely@redhat.com>
 160
 161         PR libstdc++/86450
 162         * acinclude.m4 (GLIBCXX_CHECK_COMPILER_FEATURES): Don't define WERROR.
 163         (GLIBCXX_EXPORT_FLAGS): Use -Wabi=2 instead of -Wabi.
 164         * configure: Regenerate.
 165         * configure.ac: Change GLIBCXX_ENABLE_WERROR default to "no".
 166         * doc/Makefile.in: Regenerate.
 167         * fragment.am: Set WERROR_FLAG to -Werror instead of $(WERROR).
 168         * include/Makefile.in: Regenerate.
 169         * libsupc++/Makefile.in: Regenerate.
 170         * po/Makefile.in: Regenerate.
 171         * python/Makefile.in: Regenerate.
 172         * src/Makefile.in: Regenerate.
 173         * src/c++11/Makefile.in: Regenerate.
 174         * src/c++11/debug.cc: Use diagnostic pragmas to suppress warnings
 175         from -Wabi=2 that don't affect exported symbols.
 176         * src/c++98/Makefile.in: Regenerate.
 177         * src/filesystem/Makefile.in: Regenerate.
 178         * testsuite/Makefile.in: Regenerate.
 179
 180         * src/c++11/compatibility-thread-c++0x.cc [_GLIBCXX_SHARED]
 181         (_Async_state_common::_M_join): Simplify use of std::call_once and
 182         corresponding explicit instantiation.
 183         (_Maybe_wrap_member_pointer, _Bind_simple, _Bind_simple_helper)
 184         (__bind_simple): Remove definitions and explicit instantiation that
 185         are not required by exported symbols.
 186
 187 2018-07-16  Jonathan Wakely  <jwakely@redhat.com>
 188
 189         * scripts/create_testsuite_files: Fix typo in comment.
 190
 191         PR libstdc++/86537
 192         * include/bits/shared_ptr.h (less<shared_ptr<_Tp>>): Remove
 193         non-standard partial specialization.
 194         * include/bits/shared_ptr_base.h (_Sp_less): Remove class definition.
 195         (less<__shared_ptr<_Tp, _Lp>): Remove partial specialization.
 196         * testsuite/20_util/shared_ptr/comparison/86537.cc: New test.
 197
 198 2018-07-16  Andreas Krebbel  <krebbel@linux.ibm.com>
 199
 200         * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update.
 201         * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Update.
 202         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
 203
 204 2018-07-06  François Dumont  <fdumont@gcc.gnu.org>
 205
 206         * include/debug/functions.h (__gnu_debug::__check_string): Move...
 207         * include/debug/string (__gnu_debug::__check_string): ... here.
 208         (_GLIBCXX_DEBUG_VERIFY_STR_COND_AT): New.
 209         (__glibcxx_check_string_n_constructor): New.
 210         (__gnu_debug::basic_string<>(const _CharT*, size_type, const _Alloc&)):
 211         Use latter.
 212         (__glibcxx_check_string_constructor): New.
 213         (__gnu_debug::basic_string<>(const _CharT*, const _Alloc&)):
 214         Use latter.
 215         * testsuite/21_strings/basic_string/debug/1_neg.cc: New.
 216         * testsuite/21_strings/basic_string/debug/2_neg.cc: New.
 217
 218 2018-07-06  Jonathan Wakely  <jwakely@redhat.com>
 219
 220         PR libstdc++/84928 use std::move in <numeric> algorithms
 221         * include/bits/stl_numeric.h (_GLIBCXX_MOVE_IF_20): Define macro to
 222         conditionally move, according to __cplusplus value.
 223         (accumulate, inner_product, partial_sum, adjacent_difference): Use
 224         _GLIBCXX_MOVE_IF_20.
 225         * testsuite/26_numerics/accumulate/lwg2055.cc: New test.
 226         * testsuite/26_numerics/adjacent_difference/lwg2055.cc: New test.
 227         * testsuite/26_numerics/inner_product/lwg2055.cc: New test.
 228         * testsuite/26_numerics/partial_sum/lwg2055.cc: New test.
 229
 230         * config/abi/pre/gnu.ver: Use wildcards to combine related patterns.
 231
 232         P0935R0 Eradicating unnecessarily explicit default constructors
 233         * config/abi/pre/gnu.ver: Tighten existing patterns and export new
 234         default constructor symbols.
 235         * include/std/sstream (basic_stringbuf, basic_istringstream)
 236         (basic_ostringstream, basic_stringstream): Remove default arguments
 237         from explicit constructors taking ios_base::openmode and add separate
 238         non-explicit default constructors.
 239         * testsuite/27_io/basic_istringstream/cons/default.cc: New.
 240         * testsuite/27_io/basic_ostringstream/cons/default.cc: New.
 241         * testsuite/27_io/basic_stringstream/cons/default.cc: New.
 242         * testsuite/27_io/basic_stringbuf/cons/char/default.cc: New.
 243         * testsuite/27_io/basic_stringbuf/cons/wchar_t/default.cc: New.
 244
 245         * include/std/variant (__accepted_index): Use void_t.
 246
 247 2018-07-05  Jonathan Wakely  <jwakely@redhat.com>
 248
 249         PR libstdc++/85831
 250         * config/abi/pre/gnu.ver: Export move constructors and move
 251         assignment operators for std::logic_error and std::runtime_error.
 252         * include/std/stdexcept: Use _GLIBCXX_NOTHROW instead of
 253         _GLIBCXX_USE_NOEXCEPT.
 254         (logic_error, runtime_error): Declare move constructors and move
 255         assignment operators. When not declared already, define copy
 256         constructors and copy assignment operators as explicit-defaulted.
 257         (domain_error, invalid_argument, length_error, out_of_range)
 258         (overflow_error, underflow_error): Define move constructors and move
 259         assignment operators as explicitly-defaulted.
 260         * libsupc++/exception.h (exception): Likewise.
 261         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Define
 262         move constructors and move assignment operators as defaulted.
 263         * testsuite/19_diagnostics/stdexcept.cc: Check that constructors and
 264         assignment operators are defined.
 265
 266         * testsuite/21_strings/basic_string/cons/char/deduction.cc: XFAIL for
 267         COW strings.
 268         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
 269         Likewise.
 270         * testsuite/21_strings/basic_string/requirements/
 271         explicit_instantiation/debug.cc: Likewise.
 272
 273         PR libstdc++/58265
 274         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
 275         (basic_string::assign(basic_string&&)): Add conditional noexcept
 276         depending on the allocator's is_always_equal property (LWG 2063).
 277         * testsuite/21_strings/basic_string/modifiers/assign/char/
 278         move_assign.cc: Check for non-throwing exception specification.
 279         * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
 280         move_assign.cc: Likewise.
 281
 282         PR libstdc++/58265
 283         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
 284         [_GLIBCXX_FULLY_DYNAMIC_STRING==0] (basic_string::basic_string()):
 285         Add GLIBCXX_NOEXCEPT.
 286         (basic_string::operator=(basic_string&&)): Add _GLIBCXX_NOEXCEPT_IF
 287         to depend on the allocator's is_always_equal property (LWG 2063).
 288         (basic_string::swap(basic_string&)): Likewise.
 289         * include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI]
 290         (basic_string::swap(basic_string&)): Likewise.
 291         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc:
 292         Check is_nothrow_move_assignable.
 293         * testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc:
 294         Check is_nothrow_move_assignable.
 295         * testsuite/21_strings/basic_string/cons/char/
 296         noexcept_move_construct.cc: Likewise.
 297         * testsuite/21_strings/basic_string/cons/wchar_t/
 298         noexcept_move_construct.cc: Likewise.
 299
 300 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
 301
 302         P0646R1 Improving the Return Value of Erase-Like Algorithms I
 303         * include/bits/forward_list.h (__cpp_lib_list_remove_return_type):
 304         Define.
 305         (forward_list::__remove_return_type): Define typedef as size_type or
 306         void, according to __cplusplus value.
 307         (_GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
 308         empty, according to __cplusplus value.
 309         (forward_list::remove, forward_list::unique): Use typedef and macro
 310         to change return type and add abi-tag for C++2a.
 311         (forward_list::remove_if<Pred>, forward_list::unique<BinPred>): Use
 312         typedef to change return type for C++2a.
 313         * include/bits/forward_list.tcc (_GLIBCXX20_ONLY): Define macro.
 314         (forward_list::remove, forward_list::remove_if<Pred>)
 315         (forward_list::unique<BinPred>): Return number of removed elements
 316         for C++2a.
 317         * include/bits/list.tcc (_GLIBCXX20_ONLY): Define macro.
 318         (list::remove, list::unique, list::remove_if<Predicate>)
 319         (list::unique<BinaryPredicate>): Return number of removed elements
 320         for C++2a.
 321         * include/bits/stl_list.h (__cpp_lib_list_remove_return_type): Define.
 322         (list::__remove_return_type): Define typedef as size_type or
 323         void, according to __cplusplus value.
 324         (_GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
 325         empty, according to __cplusplus value.
 326         (list::remove, list::unique): Use typedef and macro to change return
 327         type and add abi-tag for C++2a.
 328         (list::remove_if<Predicate>, list::unique<BinaryPredicate>): Use
 329         typedef to change return type for C++2a.
 330         * include/std/version (__cpp_lib_list_remove_return_type): Define.
 331         * testsuite/23_containers/forward_list/operations/
 332         remove_cxx20_return.cc: New.
 333         * testsuite/23_containers/forward_list/operations/
 334         unique_cxx20_return.cc: New.
 335
 336         P0458R2 Checking for Existence of an Element in Associative Containers
 337         * include/bits/stl_map.h (map::contains): Add for C++2a.
 338         * include/bits/stl_multimap.h (multimap::contains): Likewise.
 339         * include/bits/stl_multiset.h (multiset::contains): Likewise.
 340         * include/bits/stl_set.h (set::contains): Likewise.
 341         * include/bits/stl_tree.h (__has_is_transparent_t): Define alias.
 342         (_Rb_tree::_M_find_tr, _Rb_tree::_M_count_tr)
 343         (_Rb_tree::_M_lower_bound_tr, _Rb_tree::_M_upper_bound_tr)
 344         (_Rb_tree::_M_equal_range_tr): Use __has_is_transparent_t.
 345         * include/bits/unordered_map.h (unordered_map::contains)
 346         (unordered_multimap::contains): Add for C++2a.
 347         * include/bits/unordered_set.h (unordered_set::contains)
 348         (unordered_multiset::contains): Likewise.
 349         * testsuite/23_containers/map/operations/contains.cc: New.
 350         * testsuite/23_containers/multimap/operations/contains.cc: New.
 351         * testsuite/23_containers/multiset/operations/contains.cc: New.
 352         * testsuite/23_containers/set/operations/contains.cc: New.
 353         * testsuite/23_containers/unordered_map/operations/contains.cc: New.
 354         * testsuite/23_containers/unordered_multimap/operations/contains.cc:
 355         New.
 356         * testsuite/23_containers/unordered_multiset/operations/contains.cc:
 357         New.
 358         * testsuite/23_containers/unordered_set/operations/contains.cc: New.
 359
 360 2018-07-04  François Dumont  <fdumont@gcc.gnu.org>
 361
 362         PR libstdc++/86272
 363         * include/debug/string
 364         (__gnu_debug::basic_string<>::insert<_Ite>(const_iterator, _Ite, _Ite)):
 365         Use __glibcxx_check_insert_range.
 366         * 21_strings/basic_string/cons/char/1.cc: Adapt test to use
 367         __gnu_debug::string when _GLIBCXX_DEBUG.
 368         * 21_strings/basic_string/init-list.cc: Likewise.
 369         * 21_strings/basic_string/modifiers/insert/char/1.cc: Likewise.
 370         * 21_strings/basic_string/modifiers/insert/char/2.cc: Likewise.
 371         * 21_strings/basic_string/modifiers/insert/char/83328.cc: Likewise.
 372         * 21_strings/basic_string/types/1.cc: Likewise.
 373
 374 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
 375
 376         * testsuite/25_algorithms/make_heap/complexity.cc: Require effective
 377         target for std::random_device.
 378         * testsuite/26_numerics/random/random_device/cons/default.cc:
 379         Likewise.
 380         * testsuite/experimental/algorithm/sample-2.cc: Likewise.
 381         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
 382         * testsuite/experimental/random/randint.cc: Likewise.
 383         * testsuite/lib/libstdc++.exp
 384         (check_effective_target_random_device): New proc.
 385
 386 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
 387             Jakub Jelinek  <jakub@redhat.com>
 388
 389         * include/std/bit (__rotl, __rotr): Fix for non-power of two sizes.
 390
 391 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
 392
 393         PR libstdc++/86398
 394         * include/std/type_traits (is_trivially_constructible): Check
 395         is_constructible before __is_trivially_constructible.
 396         * testsuite/20_util/is_trivially_constructible/value.cc: Add more
 397         tests, including negative cases.
 398         * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Use
 399         zero for dg-error lineno.
 400         * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
 401         Likewise.
 402
 403         * include/std/bit (__rotl, __rotr): Avoid branch.
 404         (_If_is_unsigned_integer): Use remove_cv_t.
 405         * testsuite/26_numerics/bit/bitops.count/popcount.cc: New.
 406
 407 2018-07-03  Jonathan Wakely  <jwakely@redhat.com>
 408
 409         P0556R3 Integral power-of-2 operations, P0553R2 Bit operations
 410         * include/Makefile.am: Add new header.
 411         * include/Makefile.in: Regenerate.
 412         * include/precompiled/stdc++.h: Include new header.
 413         * include/std/bit: New header.
 414         (__rotl, __rotr, __countl_zero, __countl_one, __countr_zero)
 415         (__countr_one, __popcount, __ispow2, __ceil2, __floor2, __log2p1):
 416         Define for C++14.
 417         [!__STRICT_ANSI__] (rotl, rotr, countl_zero, countl_one, countr_zero)
 418         (countr_one, popcount): Define for C++2a. Also overload for std::byte.
 419         (ispow2, ceil2, floor2, log2p1): Define for C++2a.
 420         [!__STRICT_ANSI__] (ispow2, ceil2, floor2, log2p1): Overload for
 421         std::byte.
 422         * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: New.
 423         * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: New.
 424         * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: New.
 425         * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: New.
 426         * testsuite/26_numerics/bit/bitops.rot/rotl.cc: New.
 427         * testsuite/26_numerics/bit/bitops.rot/rotr.cc: New.
 428         * testsuite/26_numerics/bit/bitops.count/countl_one.cc: New.
 429         * testsuite/26_numerics/bit/bitops.count/countl_zero.cc: New.
 430         * testsuite/26_numerics/bit/bitops.count/countr_one.cc: New.
 431         * testsuite/26_numerics/bit/bitops.count/countr_zero.cc: New.
 432
 433         * include/bits/alloc_traits.h: Remove redundant preprocessor
 434         condition.
 435
 436 2018-07-03  François Dumont  <fdumont@gcc.gnu.org>
 437
 438         * include/bits/stl_algobase.h (__niter_wrap): New.
 439         (__copy_move_a2(_II, _II, _OI)): Use latter.
 440         (__copy_move_backward_a2(_BI1, _BI1, _BI2)): Likewise.
 441         (fill_n(_OI, _Size, const _Tp&)): Likewise.
 442         (equal(_II1, _II1, _II2)): Use __glibcxx_requires_can_increment.
 443         * include/debug/stl_iterator.h
 444         (std::__niter_base(const __gnu_cxx::_Safe_iterator<
 445         __gnu_cxx::__normal_iterator<>, _Sequence>&)): New declaration.
 446         * include/debug/vector (__niter_base(const __gnu_cxx::_Safe_iterator<
 447         __gnu_cxx::__normal_iterator<>, _Sequence>&)): New.
 448
 449 2018-07-02  Jonathan Wakely  <jwakely@redhat.com>
 450
 451         P0758R1 Implicit conversion traits
 452         * include/std/type_traits [__cplusplus > 201703]
 453         (__is_convertible_helper::__is_nothrow_type): Define new member.
 454         (__is_convertible_helper<_From, _To, false>::__test_aux1): Add
 455         noexcept.
 456         (__is_convertible_helper<_From, _To, false>::__test_nothrow)
 457         (__is_convertible_helper<_From, _To, false>::__is_nothrow_type): Add
 458         new members.
 459         (is_nothrow_convertible, is_nothrow_convertible_v): Define for C++2a.
 460         * testsuite/20_util/is_nothrow_convertible/value.cc: New.
 461         * testsuite/20_util/is_nothrow_convertible/requirements/
 462         explicit_instantiation.cc: New.
 463         * testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
 464         New.
 465
 466         P0887R1 The identity metafunction
 467         * include/std/type_traits (type_identity, type_identity_t): Define
 468         for C++2a.
 469         * testsuite/20_util/type_identity/requirements/alias_decl.cc: New.
 470         * testsuite/20_util/type_identity/requirements/
 471         explicit_instantiation.cc:New.
 472         * testsuite/20_util/type_identity/requirements/typedefs.cc: New.
 473
 474         * include/bits/regex.h (sub_match::operator string_type): Call str().
 475         (sub_match::compare): Use _M_str() instead of str().
 476         (sub_match::_M_compare): New public function.
 477         (sub_match::__string_view): New helper type.
 478         (sub_match::_M_str): New overloaded functions to avoid creating a
 479         string_type object when not needed.
 480         (operator==, operator!=, operator<, operator>, operator<=, operator>=):
 481         Use sub_match::_M_compare instead of creating string_type objects.
 482         Fix Doxygen comments.
 483         * include/bits/regex_compiler.h (__has_contiguous_iter): Remove.
 484         (__is_contiguous_normal_iter): Rename to __is_contiguous_iter and
 485         simplify.
 486         (__enable_if_contiguous_iter, __disable_if_contiguous_iter): Use
 487         __enable_if_t.
 488         * include/std/type_traits (__enable_if_t): Define for C++11.
 489         * testsuite/28_regex/sub_match/compare.cc: New.
 490         * testsuite/util/testsuite_iterators.h (remove_cv): Add transformation
 491         trait.
 492         (input_iterator_wrapper): Use remove_cv for value_type argument of
 493         std::iterator base class.
 494
 495 2018-06-29  Jonathan Wakely  <jwakely@redhat.com>
 496
 497         * testsuite/20_util/add_rvalue_reference/requirements/alias_decl.cc:
 498         Add whitespace to dejagnu directive.
 499         * testsuite/23_containers/array/element_access/at_neg.cc: Likewise.
 500
 501 2018-06-27  François Dumont  <fdumont@gcc.gnu.org>
 502
 503         * include/bits/stl_vector.h
 504         (struct _Vector_base<>::_Vector_impl_data): New.
 505         (struct _Vector_base<>::_Vector_impl): Inherit from latter.
 506         (_Vector_base<>::_Vector_impl::_M_swap_data): Move...
 507         (_Vector_base<>::_Vector_impl_data::_M_swap_data): ...here.
 508         (_Vector_base<>::_Vector_impl()): Add noexcept qualification.
 509         (_Vector_base<>::_Vector_impl(_Vector_impl&&)): New.
 510         (_Vector_base<>::_Vector_impl(_Tp_alloc_type&&, _Vector_impl&&)): New.
 511         (_Vector_base(const allocator_type&, _Vector_base&&)): New, use latter.
 512         (_Vector_base()): Default.
 513         (_Vector_base(_Vector_base&&)): Default.
 514         (_Vector_base(size_t)) [_GLIBCXX_INLINE_VERSION]: Delete.
 515         (_Vector_base(_Tp_alloc_type&&)) [_GLIBCXX_INLINE_VERSION]: Delete.
 516         (_Vector_base::_M_create_storage(size_t)): Make protected.
 517         (vector()): Default.
 518         (vector(vector&&)): Default.
 519         (vector(vector&&, const allocator_type&, true_type)): New.
 520         (vector(vector&&, const allocator_type&, false_type)): New.
 521         (vector(vector&&, const allocator_type&)): Use latters.
 522         (vector(_InputIte, _InputIte, const allocator_type&)): Call
 523         _M_range_initialize directly.
 524         * include/debug/vector
 525         (vector(vector&&, const allocator_type&)): Add noexcept qualification.
 526         * testsuite/23_containers/vector/allocator/default_init.cc: New.
 527         * testsuite/23_containers/vector/cons/noexcept_move_construct.cc: Add
 528         static assertions.
 529
 530 2018-06-27  Jonathan Wakely  <jwakely@redhat.com>
 531
 532         * include/bits/cpp_type_traits.h [__cplusplus >= 201703]
 533         (__is_byte<byte>): Define specialization for std::byte.
 534
 535         PR libstdc++/86138
 536         * include/bits/basic_string.tcc: [_GLIBCXX_EXTERN_TEMPLATE < 0]
 537         Declare explicit instantiations of COW empty reps and I/O functions.
 538
 539 2018-06-26  David Edelsohn  <dje.gcc@gmail.com>
 540
 541         * testsuite/experimental/algorithm/sample-2.cc: Add TLS DejaGNU
 542         directives.
 543         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
 544
 545 2018-06-26  Jonathan Wakely  <jwakely@redhat.com>
 546
 547         * include/bits/regex.tcc (regex_iterator::operator==): Add missing
 548         noexcept.
 549
 550 2018-06-25  Jonathan Wakely  <jwakely@redhat.com>
 551
 552         PR libstdc++/86112
 553         * python/libstdcxx/v6/printers.py (add_one_template_type_printer):
 554         Replace dict comprehension.
 555
 556         PR libstdc++/81092
 557         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
 558
 559         PR libstdc++/86292
 560         * include/bits/stl_vector.h (vector::_M_range_initialize<InputIter>):
 561         Add try-catch block.
 562         * testsuite/23_containers/vector/cons/86292.cc: New.
 563
 564         * doc/xml/manual/status_cxx2017.xml: Document N4531 status.
 565
 566         * include/experimental/algorithm (sample, shuffle): Add new overloads
 567         using per-thread random number engine.
 568         * testsuite/experimental/algorithm/sample.cc: Simpify and reduce
 569         dependencies by using __gnu_test::test_container.
 570         * testsuite/experimental/algorithm/sample-2.cc: New.
 571         * testsuite/experimental/algorithm/shuffle.cc: New.
 572
 573 2018-06-22  Jonathan Wakely  <jwakely@redhat.com>
 574
 575         * config/abi/pre/gnu.ver: Fix __cxx11::basic_string patterns for
 576         different size_t mangling on 32-bit targets.
 577
 578         PR libstdc++/86280
 579         * include/experimental/memory_resource
 580         (__resource_adaptor_common::_AlignMgr::_M_token_size): Use type large
 581         enough for result of left shift.
 582
 583         PR libstdc++/86138
 584         * include/bits/basic_string.tcc:
 585         [__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI]
 586         (basic_string<char>::_Rep::_S_empty_rep_storage)
 587         (basic_string<wchar_t>::_Rep::_S_empty_rep_storage): Add explicit
 588         instantiation declarations.
 589         [__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable
 590         explicit instantiation declarations.
 591         * testsuite/21_strings/basic_string/cons/char/86138.cc: New.
 592         * testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New.
 593
 594 2018-06-21  Jonathan Wakely  <jwakely@redhat.com>
 595
 596         PR libstdc++/83328
 597         * acinclude.m4 (libtool_VERSION): Bump to 6:26:0.
 598         * config/abi/pre/gnu.ver: Add GLIBCXX_3.4.26 and export new symbol.
 599         * configure: Regenerate.
 600         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
 601         (basic_string::insert(const_iterator, initializer_list<C>)): Add.
 602         [_GLIBCXX_USE_CXX11_ABI && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
 603         (basic_string::insert(iterator, initializer_list<C>)): Suppress
 604         definition.
 605         * include/debug/string (basic_string::insert(iterator, C)): Change
 606         first parameter to const_iterator.
 607         (basic_string::insert(iterator, size_type, C)): Likewise. Change
 608         return type to iterator.
 609         (basic_string::insert(iterator, InputIterator, InputIterator)):
 610         Likewise.
 611         (basic_string::insert(iterator, initializer_list<C>)): Change first
 612         parameter to const_iterator and return type to iterator.
 613         * src/c++11/string-inst.cc: Extend comment.
 614         * testsuite/21_strings/basic_string/modifiers/insert/char/83328.cc:
 615         New.
 616         * testsuite/21_strings/basic_string/modifiers/insert/wchar_t/83328.cc:
 617         New.
 618         * testsuite/util/testsuite_abi.cc: Add new symbol version.
 619
 620         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
 621
 622         PR libstdc++/70940
 623         * include/experimental/memory_resource
 624         (__resource_adaptor_imp::do_deallocate): Add missing return.
 625         * testsuite/experimental/memory_resource/new_delete_resource.cc: New.
 626         * testsuite/experimental/memory_resource/resource_adaptor.cc: Test
 627         resource_adaptor with std::allocator, __gnu_cxx::new_allocator and
 628         __gnu_cxx::malloc_allocator.
 629
 630         PR libstdc++/70940
 631         * include/experimental/memory_resource (__resource_adaptor_common):
 632         New base class.
 633         (__resource_adaptor_common::_AlignMgr): Helper for obtaining aligned
 634         pointer from unaligned, and vice versa.
 635         (__resource_adaptor_imp::do_allocate): Use _AlignMgr to adjust
 636         allocated pointer to meet alignment request.
 637         (__resource_adaptor_imp::do_deallocate): Use _AlignMgr to retrieve
 638         original pointer for deallocation.
 639         (__resource_adaptor_imp::do_is_equal): Reformat.
 640         (__resource_adaptor_imp::_S_aligned_size): Remove.
 641         (__resource_adaptor_imp::_S_supported): Remove.
 642         (new_delete_resource): Use __gnu_cxx::new_allocator.
 643         * testsuite/experimental/memory_resource/resource_adaptor.cc: Test
 644         extended alignments and use debug_allocator to check for matching
 645         allocate/deallocate pairs.
 646
 647 2018-06-21  François Dumont  <fdumont@gcc.gnu.org>
 648
 649         * include/debug/safe_iterator.h
 650         (_Safe_iterator<>(const _Safe_iterator<_MutableIterator,>& __x)):
 651         Compare __x base iterator with a value-initialized iterator of the
 652         same type.
 653
 654 2018-06-20  Jonathan Wakely  <jwakely@redhat.com>
 655
 656         PR libstdc++/70966
 657         * include/experimental/memory_resource (__resource_adaptor_imp): Add
 658         static assertions to enforce requirements on pointer types.
 659         (__resource_adaptor_imp::get_allocator()): Add noexcept.
 660         (new_delete_resource, null_memory_resource): Return address of an
 661         object with dynamic storage duration.
 662         (__null_memory_resource): Remove.
 663         * testsuite/experimental/memory_resource/70966.cc: New.
 664
 665         * testsuite/20_util/duration/arithmetic/dr3050.cc: Add new test
 666         missed from recent commit.
 667
 668 2018-06-19  Jonathan Wakely  <jwakely@redhat.com>
 669
 670         * include/std/utility: Remove unused <exception> header.
 671
 672 2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
 673
 674         LWG 2975 ensure construct(pair<T,U>*, ...) used to construct pairs
 675         * include/std/scoped_allocator (__not_pair): Define SFINAE helper.
 676         (construct(_Tp*, _Args&&...)): Remove from overload set when _Tp is
 677         a specialization of std::pair.
 678         * testsuite/20_util/scoped_allocator/construct_pair.cc: Ensure
 679         pair elements are constructed correctly.
 680
 681         LWG 2989 hide path iostream operators from normal lookup
 682         * include/bits/fs_path.h (operator<<, operator>>): Define inline as
 683         friends.
 684         * testsuite/27_io/filesystem/path/io/dr2989.cc: New.
 685
 686         LWG 3050 Fix cv-qualification of convertibility constraints
 687         * include/std/chrono (duration, operator*, operator/, operator%): Use
 688         const-qualified type as source type in is_convertible constraints.
 689         * testsuite/20_util/duration/arithmetic/dr3050.cc: New.
 690         * testsuite/20_util/duration/cons/dr3050.cc: New.
 691         * testsuite/20_util/duration/literals/range.cc: Rename to...
 692         * testsuite/20_util/duration/literals/range_neg.cc: Here. Adjust
 693         dg-error lineno.
 694
 695 2018-06-18  Maya Rashish  <coypu@sdf.org>
 696
 697         * crossconfig.m4: Handle OpenBSD just like NetBSD.
 698         * configure: Rebuilt.
 699
 700 2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
 701
 702         P0754R2 <version> header
 703         * include/Makefile.am: Add new header.
 704         * include/Makefile.in: Regenerate.
 705         * include/bits/c++config: Change doxygen comment to suggest <version>
 706         instead of <iosfwd>.
 707         * include/precompiled/stdc++.h: Include <cwchar> and <cwctype>
 708         unconditionally.  Add C++17 and C++20 headers.
 709         * include/std/version: New header.
 710         * testsuite/17_intro/headers/c++2017/all_attributes.cc: New.
 711         * testsuite/17_intro/headers/c++2017/all_no_exceptions.cc: New.
 712         * testsuite/17_intro/headers/c++2017/all_no_rtti.cc: New.
 713         * testsuite/17_intro/headers/c++2017/all_pedantic_errors.cc: New.
 714         * testsuite/17_intro/headers/c++2017/operator_names.cc: New.
 715         * testsuite/17_intro/headers/c++2017/stdc++.cc: New.
 716         * testsuite/17_intro/headers/c++2017/stdc++_multiple_inclusion.cc:
 717         New.
 718         * testsuite/17_intro/headers/c++2020/all_attributes.cc: New.
 719         * testsuite/17_intro/headers/c++2020/all_no_exceptions.cc: New.
 720         * testsuite/17_intro/headers/c++2020/all_no_rtti.cc: New.
 721         * testsuite/17_intro/headers/c++2020/all_pedantic_errors.cc: New.
 722         * testsuite/17_intro/headers/c++2020/operator_names.cc: New.
 723         * testsuite/17_intro/headers/c++2020/stdc++.cc: New.
 724         * testsuite/17_intro/headers/c++2020/stdc++_multiple_inclusion.cc:
 725         New.
 726         * testsuite/18_support/headers/version/macros.cc: New.
 727         * testsuite/18_support/headers/version/macros.cc: New.
 728
 729         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Only check when
 730         enable_libstdcxx_filesystem_ts = yes. Check for link, readlink and
 731         symlink.
 732         * config.h.in: Regenerate.
 733         * configure: Regenerate.
 734         * configure.ac: Remove AC_CHECK_FUNCS for link, readlink and symlink.
 735
 736         LWG 3035. std::allocator's constructors should be constexpr
 737         * include/bits/allocator.h (allocator): Add constexpr to constructors
 738         for C++2a. Replace dynamic exception specifications with NOTHROW
 739         macro.
 740         (allocator, operator==, operator!=): Replace USE_NOEXCEPT macro with
 741         NOTHROW.
 742         * include/bits/c++config (_GLIBCXX20_CONSTEXPR): Define.
 743         * include/ext/malloc_allocator.h (malloc_allocator): Add constexpr
 744         to constructors for C++2a.
 745         * include/ext/new_allocator.h (new_allocator): Likewise.
 746
 747 2018-06-16  Jonathan Wakely  <jwakely@redhat.com>
 748
 749         LWG 3076 basic_string CTAD ambiguity
 750         * doc/xml/manual/intro.xml: Document LWG 3076 change.
 751         * include/bits/basic_string.h
 752         [__cpp_deduction_guides && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
 753         (basic_string(const _CharT*, const _Alloc&)): Turn into a function
 754         template constrained by _RequireAllocator.
 755         (basic_string(size_type, _CharT, const _Alloc&)): Likewise.
 756         * src/c++11/string-inst.cc (_GLIBCXX_DEFINING_STRING_INSTANTIATIONS):
 757         Define.
 758         * testsuite/21_strings/basic_string/cons/char/deduction.cc: Test
 759         deduction
 760         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
 761         Likewise.
 762
 763 2018-06-15  Jonathan Wakely  <jwakely@redhat.com>
 764
 765         PR libstdc++/86169
 766         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
 767         (basic_string::data()): Unshare string.
 768         * testsuite/21_strings/basic_string/operations/data/char/86169.cc:
 769         New.
 770
 771         * include/std/string_view (basic_string_view(const CharT*)): Remove
 772         check for null pointer and add nonnull attribute.
 773         (compare(const CharT*), compare(size_type, size_type, const CharT*))
 774         (find(const CharT*, size_type), rfind(const CharT*, size_type))
 775         (find_first_of(const CharT*, size_type))
 776         (find_last_of(const CharT*, size_type))
 777         (find_first_not_of(const CharT*, size_type))
 778         (find_last_not_of(const CharT*, size_type)): Add nonnull attribute.
 779         * testsuite/21_strings/basic_string_view/cons/char/nonnull.cc: New.
 780         * testsuite/21_strings/basic_string_view/operations/compare/char/
 781         nonnull.cc: New.
 782         * testsuite/21_strings/basic_string_view/operations/find/char/
 783         nonnull.cc: New.
 784         * testsuite/21_strings/basic_string_view/operations/rfind/char/
 785         nonnull.cc: New.
 786
 787         PR libstdc++/86168
 788         * include/bits/random.h (random_device(const string&)): Remove
 789         default argument.
 790
 791         * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits): Only
 792         define for C++17 and above.
 793
 794         LWG 2993 reference_wrapper<T> conversion from T&&
 795         * doc/xml/manual/intro.xml: Document LWG 2993 change.
 796         * include/bits/refwrap.h (reference_wrapper(_Tp&)): Remove.
 797         (reference_wrapper(_Tp&&)): Remove.
 798         (reference_wrapper<_Up>(_Up&&)): Define new constructor as constrained
 799         template.
 800         (reference_wrapper): Add deduction guide.
 801         * testsuite/20_util/reference_wrapper/deduction.cc: New.
 802         * testsuite/20_util/reference_wrapper/lwg2993.cc: New.
 803
 804         LWG 3039 Unnecessary decay in thread and packaged_task
 805         * include/std/future (__constrain_pkgdtask): Replace with ...
 806         (packaged_task::__not_same): New alias template, using
 807         __remove_cvref_t instead of decay.
 808         * include/std/thread (thread::__not_same): Add comment.
 809
 810 2018-06-14  Jonathan Wakely  <jwakely@redhat.com>
 811
 812         LWG 3075 basic_string needs deduction guides from basic_string_view
 813         * testsuite/21_strings/basic_string/cons/char/deduction.cc: Test
 814         deduction from string views.
 815         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
 816         Likewise.
 817
 818         LWG 3074 make scalar types non-deduced in valarray non-member functions
 819         * include/bits/valarray_after.h (_DEFINE_EXPR_BINARY_FUNCTION): Change
 820         scalar parameters to be a non-deduced context.
 821         * include/std/valarray (_DEFINE_BINARY_OPERATOR): Likewise. Adjust
 822         whitespace.
 823         * testsuite/26_numerics/valarray/operators.cc: Test scalar operands.
 824         * testsuite/26_numerics/valarray/transcend.cc: New.
 825
 826         * include/std/tuple (__cpp_lib_tuple_element_t, tuple_element_t):
 827         Move back to <utility>.
 828         * include/std/utility (__cpp_lib_tuple_element_t. tuple_element_t):
 829         Restore to here.
 830
 831         P0935R0 Eradicating unnecessarily explicit default constructors
 832         * include/backward/strstream (strstreambuf): Add non-explicit default
 833         constructor.
 834         * include/bits/locale_conv.h (wbuffer_convert, wstring_convert):
 835         Likewise.
 836         * include/bits/regex.h (match_results): Likewise.
 837         * testsuite/22_locale/conversions/buffer/1.cc: Test for non-explicit
 838         default constructor.
 839         * testsuite/22_locale/conversions/string/1.cc: Likewise.
 840         * testsuite/28_regex/match_results/ctors/char/default.cc: Likewise.
 841         * testsuite/28_regex/match_results/ctors/wchar_t/default.cc: Likewise.
 842
 843         * include/std/tuple (__cpp_lib_tuple_element_t): Move feature test
 844         macro from <utility> and change type to long.
 845         * include/std/utility (__cpp_lib_tuple_element_t): Remove.
 846         * testsuite/20_util/tuple/tuple_element_t.cc: Check for feature test
 847         macro.
 848
 849         P0935R0 Eradicating unnecessarily explicit default constructors
 850         * include/bits/random.h (uniform_real_distribution::param_type)
 851         (normal_distribution::param_type, lognormal_distribution::param_type)
 852         (gamma_distribution::param_type, chi_squared_distribution::param_type)
 853         (cauchy_distribution::param_type, fisher_f_distribution::param_type)
 854         (student_t_distribution::param_type)
 855         (bernoulli_distribution::param_type)
 856         (binomial_distribution::param_type)
 857         (geometric_distribution::param_type)
 858         (negative_binomial_distribution::param_type)
 859         (poisson_distribution::param_type)
 860         (exponential_distribution::param_type)
 861         (weibull_distribution::param_type)
 862         (extreme_value_distribution::param_type): Add non-explicit default
 863         constructors. Remove default argument for first parameter of explicit
 864         constructors.
 865         * include/bits/uniform_int_dist.h
 866         (uniform_int_distribution::param_type): Likewise.
 867         * include/ext/random
 868         (beta_distribution::param_type, rice_distribution::param_type)
 869         (nakagami_distribution::param_type, pareto_distribution::param_type)
 870         (k_distribution::param_type, arcsine_distribution::param_type)
 871         (hoyt_distribution::param_type, triangular_distribution::param_type)
 872         (von_mises_distribution::param_type)
 873         (hypergeometric_distribution::param_type)
 874         (logistic_distribution::param_type)
 875         (uniform_inside_sphere_distribution::param_type): Likewise.
 876         (uniform_on_sphere_distribution::param_type): Make default constructor
 877         non-explicit.
 878         * testsuite/26_numerics/random/bernoulli_distribution/cons/default.cc:
 879         Test param_type for non-explicit default constructor.
 880         * testsuite/26_numerics/random/binomial_distribution/cons/default.cc:
 881         Likewise.
 882         * testsuite/26_numerics/random/cauchy_distribution/cons/default.cc:
 883         Likewise.
 884         * testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc:
 885         Likewise.
 886         * testsuite/26_numerics/random/discrete_distribution/cons/default.cc:
 887         Likewise.
 888         * testsuite/26_numerics/random/exponential_distribution/cons/default.cc:
 889         Likewise.
 890         * testsuite/26_numerics/random/extreme_value_distribution/cons/default.cc:
 891         Likewise.
 892         * testsuite/26_numerics/random/fisher_f_distribution/cons/default.cc:
 893         Likewise.
 894         * testsuite/26_numerics/random/gamma_distribution/cons/default.cc:
 895         Likewise.
 896         * testsuite/26_numerics/random/geometric_distribution/cons/default.cc:
 897         Likewise.
 898         * testsuite/26_numerics/random/lognormal_distribution/cons/default.cc:
 899         Likewise.
 900         * testsuite/26_numerics/random/negative_binomial_distribution/cons/default.cc:
 901         Likewise.
 902         * testsuite/26_numerics/random/normal_distribution/cons/default.cc:
 903         Likewise.
 904         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/default.cc:
 905         Likewise.
 906         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/default.cc:
 907         Likewise.
 908         * testsuite/26_numerics/random/poisson_distribution/cons/default.cc:
 909         Likewise.
 910         * testsuite/26_numerics/random/student_t_distribution/cons/default.cc:
 911         Likewise.
 912         * testsuite/26_numerics/random/uniform_int_distribution/cons/default.cc:
 913         Likewise.
 914         * testsuite/26_numerics/random/uniform_real_distribution/cons/default.cc:
 915         Likewise.
 916         * testsuite/26_numerics/random/weibull_distribution/cons/default.cc:
 917         Likewise.
 918         * testsuite/ext/random/arcsine_distribution/cons/default.cc: Likewise.
 919         * testsuite/ext/random/beta_distribution/cons/default.cc: Likewise.
 920         * testsuite/ext/random/hoyt_distribution/cons/default.cc: Likewise.
 921         * testsuite/ext/random/hypergeometric_distribution/cons/default.cc:
 922         Likewise.
 923         * testsuite/ext/random/k_distribution/cons/default.cc: Likewise.
 924         * testsuite/ext/random/logistic_distribution/cons/default.cc: Likewise.
 925         * testsuite/ext/random/nakagami_distribution/cons/default.cc: Likewise.
 926         * testsuite/ext/random/normal_mv_distribution/cons/default.cc:
 927         Likewise.
 928         * testsuite/ext/random/pareto_distribution/cons/default.cc: Likewise.
 929         * testsuite/ext/random/rice_distribution/cons/default.cc: Likewise.
 930         * testsuite/ext/random/triangular_distribution/cons/default.cc:
 931         Likewise.
 932         * testsuite/ext/random/uniform_inside_sphere_distribution/cons/default.cc:
 933         Likewise.
 934         * testsuite/ext/random/uniform_on_sphere_distribution/cons/default.cc:
 935         Likewise.
 936         * testsuite/ext/random/von_mises_distribution/cons/default.cc:
 937         Likewise.
 938
 939 2018-06-14  Daniel Trebbien <dtrebbien@gmail.com>
 940             Jonathan Wakely  <jwakely@redhat.com>
 941
 942         PR libstdc++/83982
 943         * include/bits/vector.tcc (vector::_M_default_append(size_type)):
 944         Default-construct new elements before moving existing ones.
 945         * testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc:
 946         New.
 947
 948 2018-06-13  Jonathan Wakely  <jwakely@redhat.com>
 949
 950         PR libstdc++/86127
 951         * include/bits/forward_list.h (_Fwd_list_base::_Tp_alloc_type): Remove
 952         unused typedef.
 953         (_Fwd_list_base::_M_create_node, _Fwd_list_base::_M_erase_after):
 954         Use node allocator to create and destroy elements.
 955         (forward_list::_Tp_alloc_type): Remove unused typedef.
 956         (forward_list::_Alloc_traits): Use allocator_traits instead of
 957         __gnu_cxx::__alloc_traits.
 958
 959 2018-06-13  François Dumont  <fdumont@gcc.gnu.org>
 960
 961         * include/debug/helper_functions.h
 962         (__gnu_debug::_Safe_iterator<>): Add declaration.
 963         (__can_advance(_Ite, _Size)): New.
 964         (__can_advance(const _Safe_iterator<>&, _Size)): Overload declaration.
 965         * include/debug/functions.h
 966         (__gnu_debug::_Safe_iterator<>): Remove declaration.
 967         * include/debug/stl_iterator.h
 968         (__can_advance(const _Safe_iterator<>&)): New definition.
 969         * include/debug/stl_iterator.h
 970         (__can_advance(const std::reverse_iterator<>&, _Size)): New.
 971         (__can_advance(const std::move_iterator<>&, _Size)): New.
 972         * include/debug/macros.h (__glibcxx_check_can_increment): New.
 973         * include/debug/debug.h (__glibcxx_requires_can_increment): New.
 974         * include/bits/stl_algobase.h (fill_n): Use latter.
 975         * testsuite/25_algorithms/fill_n/2.cc: New.
 976         * testsuite/25_algorithms/fill_n/debug/1_neg.cc: New.
 977         * testsuite/25_algorithms/fill_n/debug/2_neg.cc: New.
 978         * testsuite/25_algorithms/fill_n/debug/3_neg.cc: New.
 979         * testsuite/25_algorithms/fill_n/debug/4_neg.cc: New.
 980
 981         * include/debug/debug.h (__glibcxx_requires_can_increment_range): New.
 982         (__glibcxx_requires_can_decrement_range): New.
 983
 984 2018-06-12  François Dumont  <fdumont@gcc.gnu.org>
 985
 986         * include/debug/macros.h (__glibcxx_check_can_increment_range): New.
 987         (__glibcxx_check_can_decrement_range): New.
 988         * include/bits/stl_algobase.h (std::copy(_II, _II, _OI)): Use
 989         __glibcxx_requires_can_increment_range.
 990         (std::move(_II, _II, _OI)): Likewise.
 991         (std::copy_backward(_BI, _BI, _BI2)): Use
 992         __glibcxx_requires_can_decrement_range.
 993         (std::move_backward(_BI, _BI, _BI2)): Likewise.
 994         * testsuite/25_algorithms/copy_backward/debug/1_neg.cc: New.
 995         * testsuite/25_algorithms/copy_backward/debug/2_neg.cc: New.
 996         * testsuite/25_algorithms/copy_backward/debug/3_neg.cc: New.
 997         * testsuite/25_algorithms/equal/debug/1_neg.cc: New.
 998         * testsuite/25_algorithms/equal/debug/2_neg.cc: New.
 999         * testsuite/25_algorithms/equal/debug/3_neg.cc: New.
1000
1001 2018-06-12  Jonathan Wakely  <jwakely@redhat.com>
1002
1003         P0935R0 Eradicating unnecessarily explicit default constructors
1004         * include/bits/random.h (linear_congruential_engine)
1005         (mersenne_twister_engine, subtract_with_carry_engine, random_device)
1006         (uniform_real_distribution, normal_distribution)
1007         (lognormal_distribution, gamma_distribution, chi_squared_distribution)
1008         (cauchy_distribution, fisher_f_distribution, student_t_distribution)
1009         (bernoulli_distribution, binomial_distribution,geometric_distribution)
1010         (negative_binomial_distribution, exponential_distribution)
1011         (weibull_distribution, extreme_value_distribution): Add non-explicit
1012         default constructors. Remove default argument for first parameter of
1013         explicit constructors.
1014         (piecewise_constant_distribution, piecewise_linear_distribution):
1015         Make default constructor non-explicit.
1016         * include/bits/uniform_int_dist.h (uniform_int_distribution): Add
1017         non-explicit default constructors. Remove default argument for first
1018         parameter of explicit constructor.
1019         * include/ext/random
1020         (simd_fast_mersenne_twister_engine, beta_distribution)
1021         (rice_distribution, nakagami_distribution, pareto_distribution)
1022         (k_distribution, arcsine_distribution, hoyt_distribution)
1023         (triangular_distribution, von_mises_distribution)
1024         (hypergeometric_distribution, logistic_distribution)
1025         (uniform_inside_sphere_distribution): Likewise.
1026         (uniform_on_sphere_distribution): Make default constructor
1027         non-explicit.
1028         * testsuite/26_numerics/random/bernoulli_distribution/cons/default.cc:
1029         Test for non-explicit default constructor. Fix references to standard.
1030         * testsuite/26_numerics/random/binomial_distribution/cons/default.cc:
1031         Likewise.
1032         * testsuite/26_numerics/random/cauchy_distribution/cons/default.cc:
1033         Likewise.
1034         * testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc:
1035         Likewise.
1036         * testsuite/26_numerics/random/discrete_distribution/cons/default.cc:
1037         Likewise.
1038         * testsuite/26_numerics/random/exponential_distribution/cons/default.cc:
1039         Likewise.
1040         * testsuite/26_numerics/random/extreme_value_distribution/cons/default.cc:
1041         Likewise.
1042         * testsuite/26_numerics/random/fisher_f_distribution/cons/default.cc:
1043         Likewise.
1044         * testsuite/26_numerics/random/gamma_distribution/cons/default.cc:
1045         Likewise.
1046         * testsuite/26_numerics/random/geometric_distribution/cons/default.cc:
1047         Likewise.
1048         * testsuite/26_numerics/random/lognormal_distribution/cons/default.cc:
1049         Likewise.
1050         * testsuite/26_numerics/random/negative_binomial_distribution/cons/default.cc:
1051         Likewise.
1052         * testsuite/26_numerics/random/normal_distribution/cons/default.cc:
1053         Likewise.
1054         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/default.cc:
1055         Likewise.
1056         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/default.cc:
1057         Likewise.
1058         * testsuite/26_numerics/random/poisson_distribution/cons/default.cc:
1059         Likewise.
1060         * testsuite/26_numerics/random/student_t_distribution/cons/default.cc:
1061         Likewise.
1062         * testsuite/26_numerics/random/uniform_int_distribution/cons/default.cc:
1063         Likewise.
1064         * testsuite/26_numerics/random/uniform_real_distribution/cons/default.cc:
1065         Likewise.
1066         * testsuite/26_numerics/random/weibull_distribution/cons/default.cc:
1067         Likewise.
1068         * testsuite/ext/random/arcsine_distribution/cons/default.cc: Likewise.
1069         * testsuite/ext/random/beta_distribution/cons/default.cc: Likewise.
1070         * testsuite/ext/random/hoyt_distribution/cons/default.cc: Likewise.
1071         * testsuite/ext/random/hypergeometric_distribution/cons/default.cc:
1072         Likewise.
1073         * testsuite/ext/random/k_distribution/cons/default.cc: Likewise.
1074         * testsuite/ext/random/logistic_distribution/cons/default.cc: Likewise.
1075         * testsuite/ext/random/nakagami_distribution/cons/default.cc: Likewise.
1076         * testsuite/ext/random/normal_mv_distribution/cons/default.cc:
1077         Likewise.
1078         * testsuite/ext/random/pareto_distribution/cons/default.cc: Likewise.
1079         * testsuite/ext/random/rice_distribution/cons/default.cc: Likewise.
1080         * testsuite/ext/random/triangular_distribution/cons/default.cc:
1081         Likewise.
1082         * testsuite/ext/random/uniform_inside_sphere_distribution/cons/default.cc:
1083         Likewise.
1084         * testsuite/ext/random/uniform_on_sphere_distribution/cons/default.cc:
1085         Likewise.
1086         * testsuite/ext/random/von_mises_distribution/cons/default.cc:
1087         Likewise.
1088         * testsuite/util/testsuite_common_types.h
1089         (implicitly_default_constructible): New helper.
1090
1091 2018-06-08  Jonathan Wakely  <jwakely@redhat.com>
1092
1093         * include/bits/ios_base.h (ios::Init::Init(const Init&))
1094         (ios::Init::operator=): Define as defaulted.
1095         * include/bits/stl_bvector.h (_Bit_reference(const _Bit_reference&)):
1096         Likewise.
1097         * include/bits/stream_iterator.h (istream_iterator::operator=)
1098         (ostream_iterator::operator=): Likewise.
1099         * include/bits/streambuf_iterator.h (istreambuf_iterator::operator=)
1100         Likewise.
1101         * include/std/bitset (bitset::reference::reference(const reference&)):
1102         Likewise.
1103         * include/std/complex (complex<float>::complex(const complex&))
1104         (complex<double>::complex(const complex&))
1105         (complex<long double>::complex(const complex&)): Likewise.
1106
1107 2018-06-07  Jonathan Wakely  <jwakely@redhat.com>
1108
1109         * include/bits/regex.h (sub_match): Add noexcept to default
1110         constructor and length observer.
1111         (match_results): Add noexcept to default constructor and observers
1112         with no preconditions. Define destructor as defaulted.
1113         (operator==, operator!=, swap): Add noexcept.
1114         (regex_iterator): Add default member initializers and define default
1115         constructor and destructor as defaulted. Add noexcept to equality
1116         and dereference operators.
1117
1118 2018-06-07  François Dumont  <fdumont@gcc.gnu.org>
1119
1120         * src/c++11/debug.cc
1121         (_Safe_iterator_base::_M_detach()): Reset state only if needed.
1122         (_Safe_iterator_base::_M_detach_single()): Likewise.
1123         (_Safe_local_iterator_base::_M_detach()): Reset state only if needed.
1124         (_Safe_local_iterator_base::_M_detach_single()): Likewise.
1125
1126 2018-06-06  Jonathan Wakely  <jwakely@redhat.com>
1127
1128         * include/bits/shared_ptr_base.h (__shared_count): Remove redundant
1129         move of const value.
1130
1131 2018-06-06  Jakub Jelinek  <jakub@redhat.com>
1132
1133         PR c++/86068
1134         * include/bits/c++config: Check __cpp_transactional_memory >= 201500L
1135         rather than __cpp_transactional_memory >= 201505L.
1136
1137 2018-06-06  Jonathan Wakely  <jwakely@redhat.com>
1138
1139         PR libstdc++/86008
1140         * include/bits/quoted_string.h (_Quoted_string<basic_string_view, C>):
1141         Define new partial specialization.
1142         * include/std/iomanip (quoted(basic_string_view<C,T>, C, C)): Define
1143         new overload.
1144         (operator<<(basic_ostream<C,T>&, const _Quoted_string<S,C>&)): Use
1145         value not reference for iteration.
1146         * testsuite/27_io/manipulators/standard/char/quoted.cc: Adjust
1147         comment.
1148         * testsuite/27_io/manipulators/standard/char/quoted_sv.cc: New test.
1149         * testsuite/27_io/manipulators/standard/wchar_t/quoted.cc: Adjust
1150         comment.
1151
1152 2018-06-05  Jonathan Wakely  <jwakely@redhat.com>
1153
1154         * include/std/type_traits: Fix comment typos.
1155
1156         * testsuite/27_io/filesystem/operations/read_symlink.cc: XFAIL for
1157         mingw* targets.
1158         * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
1159         * testsuite/experimental/filesystem/operations/read_symlink.cc:
1160         Likewise.
1161
1162 2018-06-05  François Dumont  <fdumont@gcc.gnu.org>
1163
1164         * include/bits/stl_tempbuf.h
1165         (_Temporary_buffer(_FwdIte, _FwdIte)): Delete, replaced by...
1166         (_Temporary_buffer(_FwdIte, size_type)): ...this, new.
1167         * include/ext/memory (temporary_buffer<>(_FwdIte, _FwdIte)): Adapt.
1168         * include/bits/stl_algo.h (__stable_partition): Adapt.
1169         (__inplace_merge): Adapt.
1170         (__stable_sort): Adapt.
1171
1172 2018-06-04  Jonathan Wakely  <jwakely@redhat.com>
1173
1174         PR libstdc++/85930
1175         * include/bits/shared_ptr_base.h [!__cpp_rtti]: Include <typeinfo>
1176         unconditionally. Remove redundant declaration.
1177         [!__cpp_rtti] (_Sp_make_shared_tag::_S_ti): Fix location of
1178         alignment-specifier.
1179
1180         * include/bits/postypes.h (fpos): Define special members as defaulted.
1181
1182         PR libstdc++/85930
1183         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Align
1184         the static variable correctly.
1185
1186 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
1187
1188         PR libstdc++/78870 support std::filesystem on Windows
1189         * config.h.in: Regenerate.
1190         * configure: Regenerate.
1191         * configure.ac: Check for link, readlink and symlink.
1192         * include/bits/fs_path.h (path::operator/=(const path&)): Move
1193         definition out of class body.
1194         (path::is_absolute(), path::_M_append(path)): Likewise.
1195         (operator<<(basic_ostream, const path&)): Use std::quoted directly.
1196         (operator>>(basic_istream, path&)): Likewise.
1197         (u8path): Reorder definitions and fix Windows implementation.
1198         (path::is_absolute()): Define inline and fix for Windows.
1199         [!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
1200         Define POSIX version inline.
1201         (path::_M_append(path)): Define inline.
1202         * include/experimental/bits/fs_path.h (path::is_absolute()): Move
1203         definition out of class body.
1204         (operator<<(basic_ostream, const path&)): Fix type of delimiter and
1205         escape characters.
1206         (operator>>(basic_istream, path&)): Likewise.
1207         (path::is_absolute()): Define inline and fix for Windows.
1208         * src/filesystem/dir-common.h (__gnu_posix): New namespace.
1209         (__gnu_posix::char_type, __gnu_posix::DIR, __gnu_posix::dirent)
1210         (__gnu_posix::opendir, __gnu_posix::readdir, __gnu_posix::closedir):
1211         Define as adaptors for Windows functions/types or as
1212         using-declarations for POSIX functions/types.
1213         (_Dir_base, get_file_type): Qualify names to use declarations from
1214         __gnu_posix namespace.
1215         (_Dir_base::is_dor_or_dotdot): New helper functions.
1216         * src/filesystem/dir.cc (_Dir, recursive_directory_iterator): Qualify
1217         names to use declarations from __gnu_posix namespace.
1218         * src/filesystem/ops-common.h (__gnu_posix): New nested namespace.
1219         (__gnu_posix::open, __gnu_posix::close, __gnu_posix::stat_type)
1220         (__gnu_posix::stat, __gnu_posix::lstat, __gnu_posix::mode_t)
1221         (__gnu_posix::chmod, __gnu_posix::mkdir, __gnu_posix::getcwd)
1222         (__gnu_posix::chdir, __gnu_posix::utimbuf, __gnu_posix::utime)
1223         (__gnu_posix::rename, __gnu_posix::truncate, __gnu_posix::char_type):
1224         Define as adaptors for Windows functions/types or as
1225         using-declarations for POSIX functions/types.
1226         (stat_type, do_copy_file): Qualify names to use declarations from
1227         __gnu_posix namespace.
1228         (do_space): Declare new function.
1229         (make_file_type): Only use S_ISLNK if defined.
1230         * src/filesystem/ops.cc (char_ptr, filesystem::canonical): Use
1231         path::value_type not char.
1232         (filesystem::copy, create_dir, filesystem::create_directory): Qualify
1233         names to use declarations from __gnu_posix namespace.
1234         (filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
1235         add implementation for Windows.
1236         (filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
1237         (filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
1238         [!_PC_PATH_MAX]: Don't use pathconf.
1239         [PATH_MAX]: Use if defined.
1240         (filesystem::current_path(const path&, error_code&))
1241         (filesystem::equivalent, do_stat, filesystem::hard_link_count)
1242         (filesystem::last_write_time, filesystem::permissions): Use names
1243         from __gnu_posix.
1244         (filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
1245         (filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
1246         implementation for Windows.
1247         (filesystem::rename, filesystem::resize_file): Use names from
1248         __gnu_posix.
1249         (filesystem::space): Use do_space.
1250         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Get absolute path to directory.
1251         (filesystem::status, filesystem::symlink_status): Use names from
1252         __gnu_posix.
1253         (filesystem::temp_directory_path): Add implementation for Windows.
1254         * src/filesystem/path.cc (dot): Define constant.
1255         (path::replace_extension): Use dot.
1256         (path::_M_find_extension): Likewise. Use path::string_type not
1257         std::string.
1258         (path::_M_split_cmpts): Use dot.
1259         (filesystem_error::_M_get_what): Use u8string() not native().
1260         * src/filesystem/std-dir.cc (_Dir, recursive_directory_iterator):
1261         Qualify names to use declarations from __gnu_posix namespace.
1262         * src/filesystem/std-ops.cc (filesystem::absolute(const path&)): Use
1263         correct error_code.
1264         (filesystem::absolute(const path&, error_code&)): Add implementation
1265         for Windows.
1266         (char_ptr, filesystem::canonical): Use path::value_type not char.
1267         (do_copy_file): Use names from __gnu_posix.
1268         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Do not use fchmod, fchmodat or
1269         sendfile.
1270         (filesystem::copy, create_dir, filesystem::create_directory): Qualify
1271         names to use declarations from __gnu_posix namespace.
1272         (filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
1273         add implementation for Windows.
1274         (filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
1275         (filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
1276         [!_PC_PATH_MAX]: Don't use pathconf.
1277         [PATH_MAX]: Use if defined.
1278         (filesystem::current_path(const path&, error_code&))
1279         (filesystem::equivalent, do_stat, filesystem::hard_link_count)
1280         (filesystem::last_write_time, filesystem::permissions): Use names
1281         from __gnu_posix.
1282         (filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
1283         (filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
1284         implementation for Windows.
1285         (filesystem::rename, filesystem::resize_file): Use names from
1286         __gnu_posix.
1287         (do_space): Define.
1288         (filesystem::space): Use do_space.
1289         (filesystem::status, filesystem::symlink_status): Use names from
1290         __gnu_posix.
1291         (filesystem::temp_directory_path): Add implementation for Windows.
1292         * src/filesystem/std-path.cc
1293         [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
1294         Define for Windows.
1295         (dot): Define constant.
1296         (path::replace_extension, is_dot): Use dot.
1297         (path::lexically_normal): Check _M_type instead of calling
1298         non-existent function.
1299         (path::_M_find_extension): Use dot. Use path::string_type not
1300         std::string.
1301         (path::_M_split_cmpts): Use dot.
1302         (filesystem_error::_M_get_what): Use u8string() not native().
1303         * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Do not
1304         use symlinks.
1305         * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
1306         Likewise.
1307         * testsuite/27_io/filesystem/operations/absolute.cc: Use
1308         __gnu_test::root_path() instead of "/" and add Windows-specific tests.
1309         * testsuite/27_io/filesystem/operations/canonical.cc: Use
1310         path::string() to get narrow string, not path::native().
1311         * testsuite/27_io/filesystem/operations/copy.cc: Construct fstreams
1312         with std::filesystem::path not std::basic_string.
1313         * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
1314         * testsuite/27_io/filesystem/operations/exists.cc: Use
1315         __gnu_test::root_path() instead of "/".
1316         * testsuite/27_io/filesystem/operations/is_empty.cc: Construct
1317         fstreams with std::filesystem::path not std::basic_string.
1318         * testsuite/27_io/filesystem/operations/last_write_time.cc: Use
1319         path::string() to get narrow string.
1320         * testsuite/27_io/filesystem/operations/space.cc: Check results for
1321         errors, expect sensible values otherwise.
1322         * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Add
1323         helpers for adjusting the environment on Windows.
1324         * testsuite/27_io/filesystem/path/append/path.cc: Test
1325         Windows-specific behaviour.
1326         * testsuite/27_io/filesystem/path/construct/format.cc: Fix creation
1327         of path::string_type objects.
1328         * testsuite/27_io/filesystem/path/construct/locale.cc: Compare native
1329         string to wide string on Windows.
1330         * testsuite/27_io/filesystem/path/decompose/root_directory.cc: Allow
1331         for backslash as root-directory.
1332         * testsuite/27_io/filesystem/path/decompose/stem.cc: Use
1333         path::string() to get narrow string.
1334         * testsuite/27_io/filesystem/path/itr/traversal.cc: Test Windows-style
1335         paths.
1336         * testsuite/27_io/filesystem/path/native/string.cc: Use string_type
1337         not std::string.
1338         * testsuite/27_io/filesystem/path/query/is_absolute.cc: Adjust for
1339         different definintion of absolute paths on Windows.
1340         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
1341         Do not use symlinks.
1342         * testsuite/experimental/filesystem/operations/absolute.cc: Test
1343         Windows behaviour.
1344         * testsuite/experimental/filesystem/operations/copy.cc: Construct
1345         fstreams with NTCTS not std::basic_string.
1346         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
1347         * testsuite/experimental/filesystem/operations/exists.cc: Use
1348         __gnu_test::root_path() instead of "/".
1349         * testsuite/experimental/filesystem/operations/is_empty.cc: Construct
1350         fstreams with NTCTS not std::basic_string.
1351         * testsuite/experimental/filesystem/operations/last_write_time.cc:
1352         Use path::string() to get narrow string.
1353         * testsuite/experimental/filesystem/operations/space.cc: Use
1354         __gnu_test::root_path() instead of "/".
1355         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
1356         Add helpers for adjusting the environment on Windows.
1357         * testsuite/experimental/filesystem/path/append/path.cc: Use
1358         path::string() to get narrow strings for comparisons.
1359         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
1360         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
1361         Likewise.
1362         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
1363         * testsuite/experimental/filesystem/path/native/string.cc: Use
1364         string_type not std::string.
1365         * testsuite/experimental/filesystem/path/query/is_absolute.cc:
1366         Adjust for different definintion of absolute paths on Windows.
1367         * testsuite/util/testsuite_fs.h (__gnu_test::root_path()): New
1368         function.
1369         (__gnu_test::scoped_file): Construct fstreams with NTCTS not
1370         std::basic_string.
1371
1372 2018-05-31  Jonathan Wakely  <jwakely@redhat.com>
1373
1374         PR libstdc++/85951
1375         * include/std/type_traits [_GLIBCXX_USE_C99_STDINT_TR1]: Do not define
1376         uint_least16_t and uint_least32_t.
1377         (__make_unsigned<wchar_t>): Define unconditionally.
1378         (__make_unsigned_selector<_Tp, true, false>): Remove intermediate
1379         typedefs.
1380         (__make_unsigned_selector_base): New type to provide helper templates.
1381         (__make_unsigned_selector<_Tp, false, true>): Reimplement using
1382         __make_unsigned_selector_base helpers.
1383         (__make_unsigned<char16_t>, __make_unsigned<char32_t>): Define.
1384         (__make_signed_selector<_Tp, true, false>): Remove intermediate
1385         typedefs.
1386         (__make_signed<wchar_t>, __make_signed<char16_t>)
1387         (__make_signed<char32_t>)): Define unconditionally.
1388         * testsuite/20_util/make_signed/requirements/typedefs-3.cc: Check
1389         wchar_t, char16_t and char32_t are transformed correctly.
1390         * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
1391         dg-error lineno.
1392         * testsuite/20_util/make_unsigned/requirements/typedefs-3.cc: Check
1393         wchar_t, char16_t and char32_t are transformed correctly.
1394         * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust
1395         dg-error lineno.
1396
1397 2018-05-29  Jonathan Wakely  <jwakely@redhat.com>
1398
1399         * include/std/variant (__erased_dtor): Qualify call to __get.
1400
1401 2018-05-27  François Dumont  <fdumont@gcc.gnu.org>
1402
1403         * include/bits/stl_tree.h (_Rb_tree_impl(_Node_allocator&&)): New.
1404         (_Rb_tree(const allocator_type&)): Use latter.
1405         * include/bits/stl_map.h (map(const allocator_type&)): Likewise.
1406         (map(initializer_list<value_type>, const allocator_type&)): Likewise.
1407         (map(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
1408         * include/bits/stl_multimap.h
1409         (multimap(const allocator_type&)): Likewise.
1410         (multimap(initializer_list<value_type>, const allocator_type&)):
1411         Likewise.
1412         (multimap(_InputIterator, _InputIterator, const allocator_type&)):
1413         Likewise.
1414         * include/bits/stl_set.h (set(const allocator_type&)): Likewise.
1415         (set(initializer_list<value_type>, const allocator_type&)): Likewise.
1416         (set(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
1417         * include/bits/stl_multiset.h
1418         (multiset(const allocator_type&)): Likewise.
1419         (multiset(initializer_list<value_type>, const allocator_type&)):
1420         Likewise.
1421         (multiset(_InputIterator, _InputIterator, const allocator_type&)):
1422         Likewise.
1423
1424 2018-05-25  François Dumont  <fdumont@gcc.gnu.org>
1425
1426         PR libstdc++/85768
1427         * src/c++11/debug.cc: Remove backtrace usage.
1428
1429 2018-05-24  Maya Rashish  <coypu@sdf.org>
1430
1431         PR target/85904
1432         * crossconfig.m4: Test for aligned_alloc on netbsd.
1433         * configure: Regenerate.
1434
1435 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
1436
1437         PR libstdc++/69769
1438         PR libstdc++/85886
1439         * include/bits/atomic_base.h (__atomic_base::value_type)
1440         (__atomic_base::difference_type): Add new typedefs.
1441         * include/std/atomic (atomic<bool>::value_type, atomic<T>::value_type)
1442         (atomic<T*>::value_type, atomic<T*>::difference_type): Likewise.
1443         (atomic<T*>::operator++, atomic<T*>::operator--)
1444         (atomic<T*>::operator+=, atomic<T*>::operator-=)
1445         (atomic<T*>::fetch_add, atomic<T*>::fetch_sub): Add static assertion
1446         to enforce C++17 requirement on pointer arithmetic.
1447         (__atomic_val_t, __atomic_diff_t): New alias templates.
1448         (atomic_init, atomic_store_explicit, atomic_exchange_explicit)
1449         (atomic_compare_exchange_weak_explicit)
1450         (atomic_compare_exchange_strong_explicit, atomic_store)
1451         (atomic_exchange, atomic_compare_exchange_weak)
1452         (atomic_compare_exchange_strong): Use __atomic_val_t to make
1453         scalar parameters be non-deduced contexts.
1454         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
1455         (atomic_fetch_add, atomic_fetch_sub): Change first parameter to be
1456         atomic instead of __atomic_base, and use __atomic_diff_t for scalar
1457         parameters.
1458         (atomic_fetch_and_explicit, atomic_fetch_or_explicit)
1459         (atomic_fetch_xor_explicit, atomic_fetch_and, atomic_fetch_or)
1460         (atomic_fetch_xor): Use __atomic_val_t for scalar parameters.
1461         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
1462         (atomic_fetch_add, atomic_fetch_sub): Remove overloads for atomic
1463         address types.
1464         * testsuite/29_atomics/atomic/60695.cc: Adjust dg-error lineno.
1465         * testsuite/29_atomics/atomic/69769.cc: New test.
1466         * testsuite/29_atomics/atomic/nonmembers.cc: New test.
1467         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
1468         Disable test for C++17 and later.
1469         * testsuite/29_atomics/atomic/requirements/typedefs.cc: New test.
1470         * testsuite/29_atomics/atomic_integral/nonmembers.cc: New test.
1471         * testsuite/29_atomics/atomic_integral/requirements/typedefs.cc: New
1472         test.
1473
1474 2018-05-23  Jonathan Wakely  <jwakely@redhat.com>
1475
1476         * include/bits/fs_path.h (path::__is_encoded_char): Change from class
1477         template to alias template.
1478         (path::__value_type_is_char): Use remove_const_t.
1479         (path:_S_string_from_iter): New helper function.
1480         (path::_S_convert(InputIter, __null_terminated))
1481         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
1482         Use _S_string_from_iter.
1483         (path::string<_CharT, _Allocator>(const _Allocator&)): Allow sharing
1484         rep for COW strings.
1485         * include/experimental/bits/fs_path.h (path::__is_encoded_char):
1486         Change from class template to alias template.
1487         (path::__value_type_is_char): Use remove_const.
1488         (path:_S_string_from_iter): New helper function.
1489         (path::_S_convert(InputIter, __null_terminated))
1490         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
1491         Use _S_string_from_iter.
1492         * testsuite/27_io/filesystem/path/append/source.cc: Test appending
1493         wide strings.
1494         * testsuite/27_io/filesystem/path/concat/strings.cc: Check for exact
1495         string equality, not path equivalence.
1496         * testsuite/27_io/filesystem/path/construct/format.cc: Check
1497         construction from std::string and std::wstring and input iterators.
1498         * testsuite/27_io/filesystem/path/construct/locale.cc: Check
1499         construction from iterators.
1500         * testsuite/experimental/filesystem/path/concat/strings.cc: Check for
1501         exact string equality, not path equivalence.
1502         * testsuite/experimental/filesystem/path/construct/locale.cc: Check
1503         construction from iterators.
1504
1505         * include/bits/fs_path.h (path::_M_type): Change default member
1506         initializer to _Filename.
1507         (path::begin): Create past-the-end iterator for empty path.
1508         * src/filesystem/std-path.cc (path::remove_filename()): Remove
1509         debugging check.
1510         (path::has_relative_path()): Return false for empty filenames.
1511         (path::_M_split_cmpts): Set _M_type to _Filename for empty paths.
1512         Fix offset of empty final component.
1513         * testsuite/27_io/filesystem/path/itr/components.cc: New.
1514         * testsuite/27_io/filesystem/path/itr/traversal.cc: Add new inputs.
1515
1516 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
1517
1518         Add support for opening file streams from wide character strings.
1519         * config/io/basic_file_stdio.cc [_GLIBCXX_HAVE__WFOPEN]
1520         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
1521         Define new overload.
1522         * config/io/basic_file_stdio.h [_GLIBCXX_HAVE__WFOPEN]
1523         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
1524         Declare new overload.
1525         * configure.ac: Check for _wfopen.
1526         * crossconfig.m4: Likewise.
1527         * configure: Regenerate.
1528         * config.h.in: Regenerate.
1529         * include/bits/fstream.tcc [_GLIBCXX_HAVE__WFOPEN]
1530         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
1531         Define new overload.
1532         * include/std/fstream [_GLIBCXX_HAVE__WFOPEN]
1533         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
1534         Declare new overload.
1535         [_GLIBCXX_HAVE__WFOPEN]
1536         (basic_ifstream<C,T>::basic_ifstream(const wchar_t*, openmode))
1537         (basic_ifstream<C,T>::basic_open(const wchar_t*, openmode))
1538         (basic_ofstream<C,T>::basic_ifstream(const wchar_t*, openmode))
1539         (basic_ofstream<C,T>::basic_open(const wchar_t*, openmode))
1540         (basic_fstream<C,T>::basic_ifstream(const wchar_t*, openmode))
1541         (basic_fstream<C,T>::basic_open(const wchar_t*, openmode)): Define
1542         new overloads.
1543         * testsuite/27_io/basic_filebuf/open/wchar_t/1.cc: New.
1544         * testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: New.
1545         * testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: New.
1546         * testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: New.
1547         * testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: New.
1548         * testsuite/27_io/basic_fstream/cons/wchar_t/1.cc: New.
1549         * testsuite/27_io/basic_fstream/open/wchar_t/1.cc: New.
1550
1551 2018-05-21  François Dumont  <fdumont@gcc.gnu.org>
1552
1553         PR libstdc++/85845
1554         * include/bits/stl_tree.h
1555         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): Fix noexcept
1556         qualification.
1557
1558 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
1559
1560         * src/filesystem/std-ops.cc (absolute): Report an error for empty
1561         paths.
1562         (weakly_canonical(const path&)): Do not call canonical on empty path.
1563         (weakly_canonical(const path&, error_code&)): Likewise.
1564         * testsuite/27_io/filesystem/operations/absolute.cc: Check for errors.
1565
1566         PR libstdc++/85818
1567         * testsuite/experimental/filesystem/path/preferred_separator.cc: Add
1568         dg-require-filesystem-ts.
1569
1570         PR libstdc++/85843
1571         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Explicitly
1572         initialize base class to avoid warnings.
1573
1574 2018-05-19  Jonathan Wakely  <jwakely@redhat.com>
1575
1576         * src/c++11/codecvt.cc (__codecvt_utf8_base<wchar_t>::do_in)
1577         [__SIZEOF_WCHAR_T__==2 && __BYTE_ORDER__!=__ORDER_BIG_ENDIAN__]: Set
1578         little_endian element in bitmask.
1579         * testsuite/22_locale/codecvt/codecvt_utf8/69703.cc: Run all tests.
1580         * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: New.
1581
1582 2018-05-18  François Dumont  <fdumont@gcc.gnu.org>
1583
1584         * include/bits/stl_tree.h
1585         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): New.
1586         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, true_type)): New, use latter.
1587         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, false_type)): New.
1588         (_Rb_tree(_Rb_tree&&, _Node_allocator&&)): Adapt, use latters.
1589         * include/debug/map.h
1590         (map(map&&, const_allocator_type&)): Add noexcept qualitication.
1591         * include/debug/multimap.h
1592         (multimap(multimap&&, const_allocator_type&)): Likewise.
1593         * include/debug/set.h
1594         (set(set&&, const_allocator_type&)): Likewise.
1595         * include/debug/multiset.h
1596         (multiset(multiset&&, const_allocator_type&)): Likewise.
1597         * testsuite/23_containers/map/cons/noexcept_default_construct.cc:
1598         Add checks.
1599         * testsuite/23_containers/map/cons/noexcept_move_construct.cc:
1600         Add checks.
1601         * testsuite/23_containers/multimap/cons/noexcept_default_construct.cc:
1602         Add checks.
1603         * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc:
1604         Add checks.
1605         * testsuite/23_containers/multiset/cons/noexcept_default_construct.cc:
1606         Add checks.
1607         * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc:
1608         Add checks.
1609         * testsuite/23_containers/set/cons/noexcept_default_construct.cc:
1610         Add checks.
1611         * testsuite/23_containers/set/cons/noexcept_move_construct.cc:
1612         Add checks.
1613
1614 2018-05-18  Jason Merrill  <jason@redhat.com>
1615
1616         * include/bits/stl_deque.h (_Deque_iterator): Constrain constructor
1617         for conversion to const_iterator.  Add defaulted copy ops.
1618         * libsupc++/new (bad_alloc): Add defaulted copy ops.
1619         * libsupc++/exception.h (exception): Add defaulted copy ops.
1620         * include/std/system_error (system_error): Add defaulted copy ops.
1621         * include/std/stdexcept (domain_error, invalid_argument)
1622         (length_error, out_of_range, range_error, overflow_error)
1623         (underflow_error): Add defaulted copy ops.
1624         * include/bits/stl_iterator.h (reverse_iterator): Add defaulted
1625         copy assignment.
1626         * include/bits/allocator.h (allocator): Add defaulted copy assignment.
1627         * include/ext/throw_allocator.h (condition_base): Add defaulted
1628         default and copy ctor and copy assignment.
1629
1630 2018-05-18  Jonathan Wakely  <jwakely@redhat.com>
1631
1632         PR libstdc++/85098
1633         * include/bits/regex.h [__cplusplus < 201703L] (basic_regex::icase)
1634         (basic_regex::nosubs, basic_regex::optimize, basic_regex::collate)
1635         (basic_regex::ECMAScript, basic_regex::basic, basic_regex::extended)
1636         (basic_regex::awk, basic_regex::grep, basic_regex::egrep): Add
1637         definitions.
1638         * include/bits/regex_automaton.h (_NFA::_M_insert_state): Adjust
1639         whitespace.
1640         * include/bits/regex_compiler.tcc (__INSERT_REGEX_MATCHER): Add
1641         braces around body of do-while.
1642         * testsuite/28_regex/basic_regex/85098.cc: New
1643
1644 2018-05-17  Jonathan Wakely  <jwakely@redhat.com>
1645
1646         PR libstdc++/85818
1647         * src/filesystem/path.cc (path::preferred_separator): Add used
1648         attribute.
1649         * testsuite/experimental/filesystem/path/preferred_separator.cc: New.
1650
1651         PR libstdc++/85812
1652         * libsupc++/cxxabi_init_exception.h (__cxa_free_exception): Declare.
1653         * libsupc++/exception_ptr.h (make_exception_ptr) [__cpp_exceptions]:
1654         Refactor to separate non-throwing and throwing implementations.
1655         [__cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI]: Deallocate the memory
1656         if constructing the object throws.
1657
1658 2018-05-15  Jonathan Wakely  <jwakely@redhat.com>
1659
1660         PR libstdc++/85749
1661         * include/bits/random.h (__detail::__is_seed_seq): New SFINAE helper.
1662         (linear_congruential_engine, mersenne_twister_engine)
1663         (subtract_with_carry_engine, discard_block_engine)
1664         (independent_bits_engine, shuffle_order_engine): Use __is_seed_seq to
1665         constrain function templates taking seed sequences.
1666         * include/bits/random.tcc (linear_congruential_engine::seed(_Sseq&))
1667         (mersenne_twister_engine::seed(_Sseq&))
1668         (subtract_with_carry_engine::seed(_Sseq&)): Change return types to
1669         match declarations.
1670         * include/ext/random (simd_fast_mersenne_twister_engine): Use
1671         __is_seed_seq to constrain function templates taking seed sequences.
1672         * include/ext/random.tcc (simd_fast_mersenne_twister_engine::seed):
1673         Change return type to match declaration.
1674         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
1675         New.
1676         * testsuite/26_numerics/random/independent_bits_engine/cons/
1677         seed_seq2.cc: New.
1678         * testsuite/26_numerics/random/linear_congruential_engine/cons/
1679         seed_seq2.cc: New.
1680         * testsuite/26_numerics/random/mersenne_twister_engine/cons/
1681         seed_seq2.cc: New.
1682         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
1683         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
1684         New.
1685         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/
1686         seed_seq2.cc: New.
1687         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/
1688         seed_seq2.cc: New.
1689
1690         PR libstdc++/83891
1691         * include/bits/fs_path.h (path::is_absolute()): Use same definition
1692         for all operating systems.
1693         * include/experimental/bits/fs_path.h (path::is_absolute()): Likewise.
1694         * testsuite/27_io/filesystem/path/query/is_absolute.cc: New.
1695         * testsuite/27_io/filesystem/path/query/is_relative.cc: Fix comment.
1696         * testsuite/experimental/filesystem/path/query/is_absolute.cc: New.
1697
1698         * testsuite/27_io/filesystem/path/decompose/extension.cc: Remove
1699         unused <vector> header.
1700         * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
1701         * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
1702         * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
1703         * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
1704         * testsuite/27_io/filesystem/path/query/has_relative_path.cc:
1705         Likewise.
1706         * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
1707         Likewise.
1708         * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
1709         * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
1710         * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
1711         * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
1712         * testsuite/experimental/filesystem/path/decompose/extension.cc:
1713         Likewise.
1714         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
1715         * testsuite/experimental/filesystem/path/query/has_extension.cc:
1716         Likewise.
1717         * testsuite/experimental/filesystem/path/query/has_filename.cc:
1718         Likewise.
1719         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
1720         Likewise.
1721         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
1722         Likewise.
1723         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
1724         Likewise.
1725         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
1726         Likewise.
1727         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
1728         Likewise.
1729         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
1730         * testsuite/experimental/filesystem/path/query/is_relative.cc:
1731         Likewise.
1732
1733         PR libstdc++/84159
1734         * include/bits/fs_path.h (path::operator/=, path::append): Construct
1735         temporary path before calling _M_append.
1736         (path::_M_append): Change parameter to path and implement C++17
1737         semantics.
1738         * testsuite/27_io/filesystem/path/append/path.cc: Add helper function
1739         and more examples from the standard.
1740         * testsuite/27_io/filesystem/path/append/source.cc: New.
1741         * testsuite/27_io/filesystem/path/decompose/filename.cc: Add comment.
1742         * testsuite/27_io/filesystem/path/nonmember/append.cc: New.
1743
1744         * include/std/variant (__gen_vtable_impl::__visit_invoke): Qualify
1745         __invoke to prevent ADL.
1746
1747 2018-05-14  Jonathan Wakely  <jwakely@redhat.com>
1748
1749         PR libstdc++/81256
1750         * include/bits/fstream.tcc (basic_filebuf::close): Do not swallow
1751         exceptions from _M_terminate_output().
1752         * include/std/fstream (basic_filebuf::~basic_filebuf): Swallow any
1753         exceptions from close().
1754         * testsuite/27_io/basic_filebuf/close/81256.cc: New.
1755
1756         * include/bits/valarray_array.h (__valarray_get_memory): Remove.
1757         (__valarray_get_storage): Call operator new directly. Remove ignored
1758         top-level restrict qualifier and add malloc attribute instead.
1759         (_Array<_Tp>::_Array(size_t)): Remove unused constructor.
1760
1761         PR libstdc++/67554
1762         * include/bits/valarray_array.h (_Array_copy_ctor<_Tp, true>)
1763         (_Array_copier<_Tp, true>): Do not pass null pointers to memcpy.
1764
1765         PR libstdc++/82966
1766         * include/bits/node_handle.h (_Node_handle_common::_M_swap): Use value
1767         instead of type.
1768         * testsuite/23_containers/set/modifiers/node_swap.cc: New.
1769
1770 2018-05-13  Ville Voutilainen  <ville.voutilainen@gmail.com>
1771
1772         PR libstdc++/80165
1773         * testsuite/20_util/variant/80165.cc: New.
1774
1775 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
1776
1777         * doc/xml/faq.xml: Link to C++17 status. Add note to outdated answer.
1778         * doc/xml/manual/debug_mode.xml: Add array and forward_list to list
1779         of C++11 containers with Debug Mode support.
1780         * doc/xml/manual/using.xml: Document Dual ABI for ios_base::failure.
1781         * doc/html/*: Regenerate.
1782
1783 2018-05-10  Jason Merrill  <jason@redhat.com>
1784
1785         * include/bits/regex_compiler.h (_S_cache_size): Change from
1786         function to variable.
1787
1788 2018-05-10  Edward Smith-Rowland  <3dw4rd@verizon.net>
1789
1790         PR libstdc++/83140 - assoc_legendre returns negated value when m is odd
1791         * include/tr1/legendre_function.tcc (__assoc_legendre_p): Add __phase
1792         argument defaulted to +1.  Doxy comments on same.
1793         * testsuite/special_functions/02_assoc_legendre/
1794         check_value.cc: Regen.
1795         * testsuite/tr1/5_numerical_facilities/special_functions/
1796         02_assoc_legendre/check_value.cc: Regen.
1797
1798 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
1799
1800         PR libstdc++/85729
1801         * include/bits/c++config.h (__replacement_assert): Add linkage
1802         specification.
1803         * include/bits/std_abs.h: Add comment to closing brace of block.
1804         * include/c_global/cstddef: Add linkage specification.
1805         * include/c_global/cstring: Likewise.
1806         * include/c_global/cwchar: Likewise.
1807
1808 2018-05-09  François Dumont  <fdumont@gcc.gnu.org>
1809
1810         * include/debug/safe_iterator.h (_Safe_iterator<>::_M_constant()):
1811         Rename in...
1812         (_Safe_iterator<>::_S_constant()): ...that.
1813         * include/debug/safe_local_iterator.h
1814         (_Safe_local_iterator<>::_M_constant()): Rename in...
1815         (_Safe_local_iterator<>::_S_constant()): ...that.
1816         * include/debug/formatter.h: Remove bits/cpp_type_traits.h include.
1817         (_Iterator_state::__rbegin): New.
1818         (_Iterator_state::__rmiddle): New.
1819         (_Iterator_state::__rend): New.
1820         (_Parameter::_Parameter(const _Safe_iterator<>&, const char*,
1821         _Is_iterator)): Use _Safe_iterator<>::_S_constant. Grab normal underlying
1822         iterator type.
1823         (_Parameter::_Parameter(const _Safe_local_iterator<>&, const char*,
1824         _Is_iterator)): Likewise.
1825         (_Parameter::_S_reverse_state(_Iterator_state)): New.
1826         (_Parameter(__gnu_cxx::__normal_iterator<> const&, const char*,
1827         _Is_iterator)): New.
1828         (_Parameter(std::reverse_iterator<> const&, const char*,
1829         _Is_iterator)): New.
1830         (_Parameter(std::reverse_iterator<_Safe_iterator<>> const&,
1831         const char*, _Is_iterator)): New.
1832         (_Parameter(std::move_iterator<> const&, const char*, _Is_iterator):
1833         New.
1834         (_Parameter(std::move_iterator<_Safe_iterator<>> const&, const char*,
1835         _Is_iterator)): New.
1836         * testsuite/24_iterators/move_iterator/debug_neg.cc: New.
1837         * testsuite/24_iterators/normal_iterator/debug_neg.cc: New.
1838         * testsuite/24_iterators/reverse_iterator/debug_neg.cc: New.
1839
1840 2018-05-09  Jonathan Wakely  <jwakely@redhat.com>
1841
1842         * include/bits/std_function.h (_Base_manager::_M_get_pointer):
1843         Use constexpr if in C++17 mode.
1844         (_Base_manager::_M_clone(_Any_data&, const _Any_data&, true_type)):
1845         Copy from const object.
1846         * testsuite/20_util/function/cons/non_copyconstructible.cc: New.
1847
1848 2018-05-08  François Dumont  <fdumont@gcc.gnu.org>
1849
1850         * src/c++11/debug.cc [_GLIBCXX_HAVE_EXECINFO_H]: Include execinfo.h.
1851         [_GLIBCXX_HAVE_EXECINFO_H](_Error_formatter::_M_error): Render
1852         backtrace.
1853
1854         * include/debug/macros.h (__glibcxx_check_valid_range_at): New.
1855         * include/debug/functions.h (__check_valid_range): Use latter.
1856         * include/debug/macros.h (__glibcxx_check_valid_constructor_range): New,
1857         use latter.
1858         * include/debug/deque
1859         (deque::deque<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
1860         * include/debug/forward_list
1861         (forward_list::forward_list<_Iter>(_Iter, _Iter, const _Alloc&)):
1862         Likewise.
1863         * include/debug/list
1864         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
1865         * include/debug/list
1866         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
1867         * include/debug/map.h
1868         (map::map<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
1869         (map::map<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
1870         Likewise.
1871         * include/debug/multimap.h
1872         (multimap::multimap<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
1873         (multimap::multimap<_Iter>(_Iter, _Iter, const _Compare&,
1874         const _Alloc&)): Likewise.
1875         * include/debug/set.h
1876         (set::set<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
1877         (set::set<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
1878         Likewise.
1879         * include/debug/multiset.h
1880         (multiset::multiset<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
1881         (multiset::multiset<_Iter>(_Iter, _Iter, const _Compare&,
1882         const _Alloc&)): Likewise.
1883         * include/debug/string
1884         (basic_string::basic_string<_Iter>(_Iter, _Iter, const _Alloc&)):
1885         Likewise.
1886         * include/debug/unordered_map
1887         (unordered_map::unordered_map<_Iter>(_Iter, _Iter, const _Alloc&)):
1888         Likewise.
1889         (unordered_multimap::unordered_multimap<_Iter>(_Iter, _Iter,
1890         const _Alloc&)): Likewise.
1891         * include/debug/unordered_set
1892         (unordered_set::unordered_set<_Iter>(_Iter, _Iter, const _Alloc&)):
1893         Likewise.
1894         (unordered_multiset::unordered_multiset<_Iter>(_Iter, _Iter,
1895         const _Alloc&)): Likewise.
1896         * include/debug/vector
1897         (vector::vector<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
1898
1899         * include/debug/formatter.h (_Error_formatter::_M_function): New.
1900         (_Error_formatter(const char*, unsigned int)): Adapt.
1901         (_Error_formatter::_M_at): Rename in...
1902         (_Error_formatter::_S_at): ...that and adapt.
1903         * include/debug/macros.h (_GLIBCXX_DEBUG_VERIFY_AT_F): New.
1904         (_GLIBCXX_DEBUG_VERIFY_AT, _GLIBCXX_DEBUG_VERIFY): Adapt.
1905         * src/c++11/debug.cc (_Error_formatter::_M_error): Render _M_function
1906         when available.
1907
1908 2018-05-08  Jonathan Wakely  <jwakely@redhat.com>
1909
1910         * include/bits/regex_automaton.h (_NFA_base::_M_paren_stack, _NFA):
1911         Use normal std::vector even in Debug Mode.
1912
1913         PR libstdc++/85672
1914         * include/Makefile.am [!ENABLE_FLOAT128]: Change c++config.h entry
1915         to #undef _GLIBCXX_USE_FLOAT128 instead of defining it to zero.
1916         * include/Makefile.in: Regenerate.
1917         * include/bits/c++config (_GLIBCXX_USE_FLOAT128): Move definition
1918         within conditional block.
1919
1920 2018-05-07  Jonathan Wakely  <jwakely@redhat.com>
1921
1922         * doc/xml/manual/using.xml (table.cmd_options): Document that the
1923         C++17 Filesystem implementation also needs -lstdc++fs.
1924
1925         PR libstdc++/85671
1926         * include/bits/fs_path.h (operator/): Permit copy elision.
1927         * include/experimental/bits/fs_path.h (operator/): Likewise.
1928
1929 2018-05-07  Edward Smith-Rowland  <3dw4rd@verizon.net>
1930
1931         Moar PR libstdc++/80506
1932         * include/bits/random.tcc (gamma_distribution::__generate_impl()):
1933         Fix magic number used in loop condition.
1934
1935 2018-05-04  Jonathan Wakely  <jwakely@redhat.com>
1936
1937         PR libstdc++/85642 fix is_nothrow_default_constructible<optional<T>>
1938         * include/std/optional (_Optional_payload): Add noexcept to default
1939         constructor. Re-indent.
1940         (_Optional_payload<_Tp, true, true, true>): Likewise. Add noexcept to
1941         constructor for copying disengaged payloads.
1942         (_Optional_payload<_Tp, true, false, true>): Likewise.
1943         (_Optional_payload<_Tp, true, true, false>): Likewise.
1944         (_Optional_payload<_Tp, true, false, false>): Likewise.
1945         * testsuite/20_util/optional/cons/85642.cc: New.
1946         * testsuite/20_util/optional/cons/value_neg.cc: Adjust dg-error lines.
1947
1948 2018-05-03  Jonathan Wakely  <jwakely@redhat.com>
1949
1950         PR libstdc++/82644
1951         * include/tr1/cmath [__STRICT_ANSI__] (hypergf, hypergl, hyperg): Use
1952         inline definitions instead of using-declarations.
1953         [__STRICT_ANSI__] (conf_hypergf, conf_hypergl, conf_hyperg): Likewise.
1954         * testsuite/tr1/5_numerical_facilities/special_functions/
1955         07_conf_hyperg/compile_cxx17.cc: New.
1956         * testsuite/tr1/5_numerical_facilities/special_functions/
1957         17_hyperg/compile_cxx17.cc: New.
1958
1959         PR libstdc++/84769
1960         * include/std/variant (visit): Qualify std::get call.
1961
1962         PR libstdc++/85632 use uintmax_t for arithmetic
1963         * src/filesystem/ops.cc (experimental::filesystem::space): Perform
1964         arithmetic in result type.
1965         * src/filesystem/std-ops.cc (filesystem::space): Likewise.
1966         * testsuite/27_io/filesystem/operations/space.cc: Check total capacity
1967         is greater than free space.
1968         * testsuite/experimental/filesystem/operations/space.cc: New.
1969
1970         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc: New.
1971         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
1972         New.
1973         * testsuite/20_util/remove_cvref/value.cc: New.
1974         * testsuite/20_util/remove_cvref/value_ext.cc: New.
1975
1976         PR libstdc++/84087 LWG DR 2268 basic_string default arguments
1977         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI=1]
1978         (append(const basic_string&, size_type, size_type)
1979         (assign(const basic_string&, size_type, size_type)
1980         (insert(size_type, const basic_string&, size_type, size_type)
1981         (replace(size_type,size_type,const basic_string&,size_type,size_type)
1982         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
1983         Add default arguments (LWG 2268).
1984         [_GLIBCXX_USE_CXX11_ABI=0]
1985         (append(const basic_string&, size_type, size_type)
1986         (assign(const basic_string&, size_type, size_type)
1987         (insert(size_type, const basic_string&, size_type, size_type)
1988         (replace(size_type,size_type,const basic_string&,size_type,size_type)
1989         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
1990         Likewise.
1991         * testsuite/21_strings/basic_string/dr2268.cc: New test.
1992
1993         PR libstdc++/84535
1994         * include/std/thread (thread::__not_same): New SFINAE helper.
1995         (thread::thread(_Callable&&, _Args&&...)): Add SFINAE constraint that
1996         first argument is not a std::thread. Add static assertion to check
1997         INVOKE expression is valid.
1998         (thread::thread(thread&), thread::thread(const thread&&)): Remove.
1999         (thread::_Invoke::_M_invoke, thread::_Invoke::operator()): Use
2000         __invoke_result for return types and remove exception specifications.
2001         * testsuite/30_threads/thread/cons/84535.cc: New.
2002
2003         * include/std/future (__async_result_of): Use __invoke_result instead
2004         of result_of.
2005
2006         * include/std/any (any_cast): Use __remove_cvref_t.
2007         * include/std/tuple (__make_tuple): Likewise.
2008         * include/std/type_traits (__remove_cvref_t): Define.
2009         (__result_of_memobj, __result_of_memfun): Use __remove_cvref_t.
2010         [__cplusplus > 201703L] (remove_cvref, remove_cvref_t): Define.
2011         * include/std/variant (__erased_hash): Use __remove_cvref_t.
2012
2013 2018-05-02  François Dumont  <fdumont@gcc.gnu.org>
2014
2015         * include/bits/deque.tcc (deque<>::_M_assign_aux): Cast to void to
2016         ensure overloaded comma not used.
2017         * include/bits/list.tcc (list<>::_M_assign_dispatch): Likewise.
2018         * include/bits/vector.tcc (vector<>::_M_assign_aux): Likewise.
2019         * include/bits/stl_bvector.h (vector<bool>::_M_assign_aux): Likewise.
2020         * testsuite/23_containers/deque/modifiers/assign/1.cc: New.
2021         * testsuite/23_containers/list/modifiers/assign/1.cc: New.
2022         * testsuite/23_containers/vector/bool/modifiers/assign/1.cc: New.
2023         * testsuite/23_containers/vector/modifiers/assign/1.cc: New.
2024
2025 2018-05-02  Jonathan Wakely  <jwakely@redhat.com>
2026
2027         PR libstdc++/68197
2028         * include/bits/ios_base.h (ios_base::iword, ios_base::pword): Cast
2029         indices to unsigned.
2030         * src/c++11/ios.cc (ios_base::_M_grow_words): Treat negative indices
2031         as failure. Refactor error handling.
2032         * testsuite/27_io/ios_base/storage/68197.cc: New.
2033
2034         PR libstdc++/57997
2035         PR libstdc++/83860
2036         * include/bits/gslice_array.h (gslice_array): Define default
2037         constructor as deleted, as per C++11 standard.
2038         * include/bits/mask_array.h (mask_array): Likewise.
2039         * include/bits/slice_array.h (slice_array): Likewise.
2040         * include/bits/valarray_after.h (_GBase, _GClos, _IBase, _IClos): Move
2041         to namespace __detail.
2042         (_GBase::_M_expr, _IBase::_M_expr): Use _ValArrayRef for type of data
2043         members.
2044         * include/bits/valarray_before.h (_ValArrayRef): New helper for type
2045         of data members in closure objects.
2046         (_FunBase, _ValFunClos, _RefFunClos, _UnBase, _UnClos, _BinBase)
2047         (_BinBase2, _BinBase1, _BinClos, _SBase, _SClos): Move to namespace
2048         __detail.
2049         (_FunBase::_M_expr, _UnBase::_M_expr, _BinBase::_M_expr1)
2050         (_BinBase::_M_expr2, _BinBase2::_M_expr1, _BinBase1::_M_expr2)
2051         (_SBase::_M_expr): Use _ValArrayRef for type of data members.
2052         * include/std/valarray (_UnClos, _BinClos, _SClos, _GClos, _IClos)
2053         (_ValFunClos, _RefFunClos): Move to namespace __detail and add
2054         using-declarations to namespace std.
2055         * testsuite/26_numerics/valarray/83860.cc: New.
2056
2057         * testsuite/backward/strstream_move.cc: Remove duplicate function
2058         call.
2059
2060         PR libstdc++/69608
2061         * include/backward/strstream (strstreambuf): Define move constructor
2062         and move assignment operator.
2063         (istrstream, ostrstream, strstream): Likewise.
2064         * testsuite/backward/strstream_move.cc: New.
2065
2066 2018-05-01  Tulio Magno Quites Machado Filho  <tuliom@linux.vnet.ibm.com>
2067
2068         PR libstdc++/84654
2069         * acinclude.m4: Set ENABLE_FLOAT128 instead of _GLIBCXX_USE_FLOAT128.
2070         * config.h.in: Remove references to _GLIBCXX_USE_FLOAT128.
2071         * configure: Regenerate.
2072         * include/Makefile.am: Replace the value of _GLIBCXX_USE_FLOAT128
2073         based on ENABLE_FLOAT128.
2074         * include/Makefile.in: Regenerate.
2075         * include/bits/c++config: Define _GLIBCXX_USE_FLOAT128.
2076         [!defined(__FLOAT128__) && !defined(__SIZEOF_FLOAT128__)]: Undefine
2077         _GLIBCXX_USE_FLOAT128.
2078
2079 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
2080
2081         * configure: Regenerated.
2082
2083 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
2084
2085         * configure: Regenerated.
2086
2087 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
2088             Jakub Jelinek  <jakub@redhat.com>
2089
2090         PR libstdc++/85442
2091         * src/c++11/Makefile.am: Don't generate debuginfo again for
2092         cxx11-ios_failure-lt.s and cxx11-ios_failure.s files.
2093         * src/c++11/Makefile.in: Regenerate.
2094
2095 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
2096
2097         PR libstdc++/84442
2098         * testsuite/30_threads/thread/cons/terminate.cc
2099         [!_GLIBCXX_USE_C99_STDLIB] : Use _exit or std::exit instead of _Exit.
2100
2101 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
2102
2103         PR jit/85384
2104         * configure: Regenerate.
2105
2106 2018-04-16  Jonathan Wakely  <jwakely@redhat.com>
2107
2108         * testsuite/experimental/filesystem/file_status/1.cc: Add
2109         -DUSE_FILESYSTEM_TS to dg-options.
2110         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
2111         Likewise.
2112         * testsuite/experimental/filesystem/iterators/pop.cc: Likewise.
2113         * testsuite/experimental/filesystem/iterators/
2114         recursive_directory_iterator.cc: Likewise.
2115         * testsuite/experimental/filesystem/operations/absolute.cc: Likewise.
2116         * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
2117         * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
2118         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
2119         * testsuite/experimental/filesystem/operations/create_directories.cc:
2120         Likewise.
2121         * testsuite/experimental/filesystem/operations/create_directory.cc:
2122         Likewise.
2123         * testsuite/experimental/filesystem/operations/create_symlink.cc:
2124         Likewise.
2125         * testsuite/experimental/filesystem/operations/current_path.cc:
2126         Likewise.
2127         * testsuite/experimental/filesystem/operations/equivalent.cc: Likewise.
2128         * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
2129         * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
2130         * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
2131         * testsuite/experimental/filesystem/operations/last_write_time.cc:
2132         Likewise.
2133         * testsuite/experimental/filesystem/operations/permissions.cc:
2134         Likewise.
2135         * testsuite/experimental/filesystem/operations/read_symlink.cc:
2136         Likewise.
2137         * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
2138         * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
2139         * testsuite/experimental/filesystem/operations/status.cc: Likewise.
2140         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
2141         Likewise.
2142         * testsuite/experimental/filesystem/path/append/path.cc: Likewise.
2143         * testsuite/experimental/filesystem/path/assign/assign.cc: Likewise.
2144         * testsuite/experimental/filesystem/path/assign/copy.cc: Likewise.
2145         * testsuite/experimental/filesystem/path/compare/compare.cc: Likewise.
2146         * testsuite/experimental/filesystem/path/compare/path.cc: Likewise.
2147         * testsuite/experimental/filesystem/path/compare/strings.cc: Likewise.
2148         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
2149         * testsuite/experimental/filesystem/path/concat/strings.cc: Likewise.
2150         * testsuite/experimental/filesystem/path/construct/copy.cc: Likewise.
2151         * testsuite/experimental/filesystem/path/construct/default.cc:
2152         Likewise.
2153         * testsuite/experimental/filesystem/path/construct/locale.cc: Likewise.
2154         * testsuite/experimental/filesystem/path/construct/range.cc: Likewise.
2155         * testsuite/experimental/filesystem/path/construct/string_view.cc:
2156         Likewise.
2157         * testsuite/experimental/filesystem/path/decompose/extension.cc:
2158         Likewise.
2159         * testsuite/experimental/filesystem/path/decompose/filename.cc:
2160         Likewise.
2161         * testsuite/experimental/filesystem/path/decompose/parent_path.cc:
2162         Likewise.
2163         * testsuite/experimental/filesystem/path/decompose/relative_path.cc:
2164         Likewise.
2165         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
2166         Likewise.
2167         * testsuite/experimental/filesystem/path/decompose/root_name.cc:
2168         Likewise.
2169         * testsuite/experimental/filesystem/path/decompose/root_path.cc:
2170         Likewise.
2171         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
2172         * testsuite/experimental/filesystem/path/generic/generic_string.cc:
2173         Likewise.
2174         * testsuite/experimental/filesystem/path/itr/traversal.cc: Likewise.
2175         * testsuite/experimental/filesystem/path/modifiers/clear.cc: Likewise.
2176         * testsuite/experimental/filesystem/path/modifiers/make_preferred.cc:
2177         Likewise.
2178         * testsuite/experimental/filesystem/path/modifiers/remove_filename.cc:
2179         Likewise.
2180         * testsuite/experimental/filesystem/path/modifiers/replace_extension.cc:
2181         Likewise.
2182         * testsuite/experimental/filesystem/path/modifiers/replace_filename.cc:
2183         Likewise.
2184         * testsuite/experimental/filesystem/path/modifiers/swap.cc: Likewise.
2185         * testsuite/experimental/filesystem/path/native/string.cc: Likewise.
2186         * testsuite/experimental/filesystem/path/nonmember/hash_value.cc:
2187         Likewise.
2188         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
2189         * testsuite/experimental/filesystem/path/query/has_extension.cc:
2190         Likewise.
2191         * testsuite/experimental/filesystem/path/query/has_filename.cc:
2192         Likewise.
2193         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
2194         Likewise.
2195         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
2196         Likewise.
2197         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
2198         Likewise.
2199         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
2200         Likewise.
2201         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
2202         Likewise.
2203         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
2204         * testsuite/experimental/filesystem/path/query/is_relative.cc:
2205         Likewise.
2206
2207 2018-04-13  Jonathan Wakely  <jwakely@redhat.com>
2208
2209         * src/c++11/Makefile.am: Fix sed command.
2210         * src/c++11/Makefile.in: Regenerate.
2211
2212         * src/c++11/Makefile.am: Rewrite sed rule to be less fragile and to
2213         handle mangled names starting with double underscores on darwin.
2214         * src/c++11/Makefile.in: Regenerate.
2215
2216 2018-04-12  Jonathan Wakely  <jwakely@redhat.com>
2217
2218         * src/c++11/Makefile.am: Fix comment.
2219         * src/c++11/Makefile.in: Regenerate.
2220         * src/c++11/cxx11-ios_failure.cc: Fix comment.
2221         * src/c++98/ios_failure.cc: Likewise.
2222
2223         * src/c++11/ios.cc: Remove redundant macro definition.
2224
2225 2018-04-11  Jonathan Wakely  <jwakely@redhat.com>
2226
2227         * doc/xml/manual/abi.xml: Document header locations in recent
2228         releases.
2229         * doc/xml/manual/evolution.xml: Add API changes since GCC 5.
2230         * doc/xml/manual/spine.xml: Update copyright years.
2231         * doc/xml/manual/strings.xml: Adjust tolower example to avoid
2232         undefined behaviour.
2233         * doc/xml/manual/test.xml: Update outdated notes on VERIFY in tests.
2234         * doc/html/*: Regenerate.
2235
2236 2018-04-10  Jonathan Wakely  <jwakely@redhat.com>
2237
2238         * doc/xml/faq.xml: Update links to archived copy of SGI STL docs.
2239         * doc/xml/manual/backwards_compatibility.xml: Likewise.
2240         * doc/xml/manual/containers.xml: Likewise.
2241         * doc/xml/manual/debug_mode.xml: Likewise.
2242         * doc/xml/manual/extensions.xml: Likewise.
2243         * doc/xml/manual/policy_data_structures_biblio.xml: Likewise.
2244         * doc/xml/manual/using.xml: Likewise.
2245         * doc/xml/manual/utilities.xml: Likewise.
2246
2247         PR libstdc++/85222
2248         * src/c++11/Makefile.am [ENABLE_DUAL_ABI]: Add special rules for
2249         cxx11-ios_failure.cc to rewrite type info for __ios_failure.
2250         * src/c++11/Makefile.in: Regenerate.
2251         * src/c++11/cxx11-ios_failure.cc (__ios_failure, __iosfail_type_info):
2252         New types.
2253         [_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
2254         * src/c++11/ios.cc (__throw_ios_failure): Remove definition.
2255         * src/c++98/ios_failure.cc (__construct_ios_failure)
2256         (__destroy_ios_failure, is_ios_failure_handler): New functions.
2257         [!_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
2258         * testsuite/27_io/ios_base/failure/dual_abi.cc: New.
2259         * testsuite/27_io/basic_ios/copyfmt/char/1.cc: Revert changes to
2260         handler types, to always catch std::ios_base::failure.
2261         * testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
2262         * testsuite/27_io/basic_istream/extractors_arithmetic/char/
2263         exceptions_failbit.cc: Likewise.
2264         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
2265         exceptions_failbit.cc: Likewise.
2266         * testsuite/27_io/basic_istream/extractors_other/char/
2267         exceptions_null.cc: Likewise.
2268         * testsuite/27_io/basic_istream/extractors_other/wchar_t/
2269         exceptions_null.cc: Likewise.
2270         * testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
2271         * testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
2272         * testsuite/27_io/basic_ostream/inserters_other/char/
2273         exceptions_null.cc: Likewise.
2274         * testsuite/27_io/basic_ostream/inserters_other/wchar_t/
2275         exceptions_null.cc: Likewise.
2276         * testsuite/27_io/ios_base/storage/2.cc: Likewise.
2277
2278 2018-04-05  Jonathan Wakely  <jwakely@redhat.com>
2279
2280         * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Qualify
2281         __get calls to avoid ADL and avoid ambiguity due to Clang bug.
2282
2283 2018-04-03  Jonathan Wakely  <jwakely@redhat.com>
2284
2285         PR libstdc++/85183
2286         * include/std/variant (_Move_assign_base::operator=): Fix incorrect
2287         value categories.
2288         * testsuite/20_util/variant/85183.cc: New.
2289
2290 2018-03-26  Jonathan Wakely  <jwakely@redhat.com>
2291
2292         * include/std/variant (__get): Qualify calls to avoid ADL.
2293         (__select_index): Adjust whitespace.
2294         (variant): Add using-declaration to workaround Clang bug.
2295
2296 2018-03-22  Jonathan Wakely  <jwakely@redhat.com>
2297
2298         PR libstdc++/85040
2299         * include/bits/stl_function.h (greater::__not_overloaded)
2300         (less::__not_overloaded, greater_equal::__not_overloaded)
2301         (less_equal::__not_overloaded): Fix ambiguous specializations.
2302         * testsuite/20_util/function_objects/comparisons_pointer.cc: Add
2303         tests for type with overloaded operators.
2304
2305 2018-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2306
2307         PR libstdc++/77691
2308         * testsuite/experimental/memory_resource/resource_adaptor.cc:
2309         xfail execution on 32-bit Solaris/x86.
2310
2311 2018-03-21  Jonathan Wakely  <jwakely@redhat.com>
2312
2313         * testsuite/20_util/function_objects/comparisons_pointer.cc: Use
2314         VERIFY instead of assert.
2315         * testsuite/20_util/hash/84998.cc: New test.
2316         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc: New
2317         copy of test adjusted for Debug Mode.
2318         * testsuite/23_containers/vector/cons/destructible_neg.cc: Do not run
2319         test in Debug Mode.
2320
2321 2018-03-20  François Dumont  <fdumont@gcc.gnu.org>
2322
2323         PR libstdc++/84998
2324         * include/bits/stl_bvector.h: Fix std::hash friend declaration.
2325         * include/std/bitset: Likewise.
2326         * include/bits/stl_map.h (std::map<>): Fix _Rb_tree_merge_helper friend
2327         declaration.
2328         * include/bits/stl_multimap.h (std::multimap<>): Likewise.
2329         * include/bits/stl_multiset.h (std::multiset<>): Likewise.
2330         * include/bits/stl_set.h (std::set<>): Likewise.
2331         * include/bits/unordered_map.h (std::unordered_map<>): Fix
2332         _Hash_merge_helper friend declaration.
2333         (std::unordered_multimap<>): Likewise.
2334         * include/bits/unordered_set.h (std::unordered_set<>): Likewise.
2335         (std::unordered_multiset<>): Likewise.
2336
2337 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
2338
2339         * doc/xml/api.xml: www.fsf.org has moved to https. Also omit
2340         trailing slash for domain level link.
2341         * doc/xml/faq.xml: Ditto.
2342         * doc/xml/manual/appendix_free.xml (software): Ditto.
2343         * doc/xml/manual/intro.xml: Ditto.
2344         * doc/xml/manual/spine.xml: Ditto.
2345         * doc/xml/spine.xml: Ditto.
2346
2347 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
2348
2349         * doc/xml/manual/documentation_hacking.xml: Adjust link to
2350         docbook.org.
2351
2352 2018-03-17  Jonathan Wakely  <jwakely@redhat.com>
2353
2354         * testsuite/20_util/function_objects/comparisons_pointer.cc: Adjust
2355         to compile as C++98.
2356
2357 2018-03-14  Jonathan Wakely  <jwakely@redhat.com>
2358
2359         PR libstdc++/78420
2360         * include/bits/stl_function.h (greater<_Tp*>, less<_Tp*>)
2361         (greater_equal<_Tp*>, less_equal<_Tp>*): Add partial specializations
2362         to ensure total order for pointers.
2363         (greater<void>, less<void>, greater_equal<void>, less_equal<void>):
2364         Add operator() overloads for pointer arguments and make generic
2365         overloads dispatch to new _S_cmp functions when comparisons would
2366         use built-in operators for pointers.
2367         * testsuite/20_util/function_objects/comparisons_pointer.cc: New.
2368
2369 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
2370
2371         PR libstdc++/84773
2372         PR libstdc++/83662
2373         * crossconfig.m4: Check for aligned_alloc etc. on freebsd and mingw32.
2374         * configure: Regenerate.
2375         * include/c_global/cstdlib [_GLIBCXX_HAVE_ALIGNED_ALLOC]
2376         (aligned_alloc): Add using-declaration.
2377         * testsuite/18_support/aligned_alloc/aligned_alloc.cc: New test.
2378
2379 2018-03-09  François Dumont  <fdumont@gcc.gnu.org>
2380
2381         * python/libstdcxx/v6/printers.py (build_libstdcxx_dictionary):
2382         Fix std::_Fwd_list_iterator and std::_Fwd_list_const_iterator printers
2383         registration.
2384
2385 2018-03-09  Jonathan Wakely  <jwakely@redhat.com>
2386
2387         PR libstdc++/84769
2388         * include/std/variant (get<_Tp, _Types...>, get_if<_Tp, _Types...>):
2389         Qualify calls to get<_Np, Types...> and get_if<_Np, _Types...>.
2390
2391         src/filesystem/ops.cc (create_dir): Pass error_code to is_directory.
2392         src/filesystem/std-ops.cc (create_dir): Likewise.
2393
2394 2018-03-08  François Dumont  <fdumont@gcc.gnu.org>
2395
2396         * python/libstdcxx/v6/printers.py (NodeIteratorPrinter): New.
2397         (StdListIteratorPrinter): Inherit from latter.
2398         (StdFwdListIteratorPrinter): New, inherit from latter.
2399         (StdDebugIteratorPrinter.to_string): Use non-debug iterator printer
2400         when iterator has no associated container.
2401         (build_libstdcxx_dictionary): Add __gnu_cxx::_Fwd_list_iterator and
2402         __gnu_cxx::_Fwd_list_const_iterator printers. Remove __norm namespace
2403         registrations.
2404         * testsuite/libstdc++-prettyprinters/debug.cc: Adapt.
2405         * testsuite/libstdc++-prettyprinters/debug_cxx11.cc: Adapt.
2406
2407 2018-03-06  Ville Voutilainen  <ville.voutilainen@gmail.com>
2408
2409         PR libstdc++/84601
2410         * include/std/optional (_Optional_payload): Split into multiple
2411         specializations that can handle different cases of trivial or
2412         non-trivial assignment operators.
2413         * testsuite/20_util/optional/84601.cc: New.
2414         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
2415
2416 2018-03-02  Jonathan Wakely  <jwakely@redhat.com>
2417
2418         PR libstdc++/84671
2419         * include/bits/parse_numbers.h (_Number_help): Add partial
2420         specialization to handle digit separators. Adjust partial
2421         specialization for recursion temrination to require _Pow == 1ULL.
2422         * testsuite/20_util/duration/literals/84671.cc: New
2423
2424 2018-02-27  Ville Voutilainen  <ville.voutilainen@gmail.com>
2425
2426         Implement the missing bits of LWG 2769
2427         * include/std/any (any_cast(const any&)): Add static_assert.
2428         (any_cast(any&)): Likewise.
2429         (any_cast(any&&)): Likewise, and remove the handling
2430         for copyable-but-not-movable type.
2431         * testsuite/20_util/any/misc/any_cast.cc: Adjust.
2432         * testsuite/20_util/any/misc/any_cast_neg.cc: Likewise, and
2433         add new tests.
2434
2435 2018-02-23  Jonathan Wakely  <jwakely@redhat.com>
2436
2437         PR libstdc++/84532
2438         * include/std/thread (thread::__make_invoker): Construct tuple
2439         directly instead of using make_tuple.
2440         * testsuite/30_threads/async/84532.cc: New.
2441         * testsuite/30_threads/thread/84532.cc: New.
2442
2443 2018-02-20  François Dumont  <fdumont@gcc.gnu.org>
2444
2445         * include/ext/aligned_buffer.h [_GLIBCXX_INLINE_VERSION]
2446         (template<> __aligned_buffer): Define as __aligned_membuf alias.
2447
2448 2018-02-19  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
2449
2450         PR target/84148
2451         * configure: Regenerate.
2452
2453 2018-02-15  Jonathan Wakely  <jwakely@redhat.com>
2454
2455         PR libstdc++/81797
2456         * configure.ac (INCLUDE_DIR_NOTPARALLEL): Define.
2457         * configure: Regenerate.
2458         * include/Makefile.am (INCLUDE_DIR_NOTPARALLEL): Add .NOTPARALLEL when
2459         defined.
2460         * include/Makefile.in: Regenerate.
2461
2462 2018-01-29  Jonathan Wakely  <jwakely@redhat.com>
2463
2464         PR libstdc++/83833
2465         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
2466         Add -ffloat-store to options for m68k and ia32.
2467
2468         * doc/xml/faq.xml: Update copyright years.
2469         * doc/html/*: Regenerate.
2470
2471         PR libstdc++/83658
2472         * include/std/any (any::__do_emplace): Only set _M_manager after
2473         constructing the contained object.
2474         * testsuite/20_util/any/misc/any_cast_neg.cc: Adjust dg-error line.
2475         * testsuite/20_util/any/modifiers/83658.cc: New test.
2476
2477 2018-01-25  Jonathan Wakely  <jwakely@redhat.com>
2478
2479         PR libstdc++/81076
2480         * include/c_global/cstddef (__byte_operand): Define primary template.
2481         * testsuite/18_support/byte/81076.cc: New test.
2482
2483 2018-01-19  Christophe Lyon  <christophe.lyon@linaro.org>
2484
2485         * testsuite/ext/special_functions/airy_ai/check_nan.cc: Fix
2486         dg-options and dg-add-options order.
2487         * testsuite/ext/special_functions/airy_bi/check_nan.cc: Likewise.
2488         * testsuite/ext/special_functions/conf_hyperg/check_nan.cc:
2489         Likewise.
2490         * testsuite/ext/special_functions/hyperg/check_nan.cc: Likewise.
2491         * testsuite/special_functions/01_assoc_laguerre/check_nan.cc:
2492         Likewise.
2493         * testsuite/special_functions/02_assoc_legendre/check_nan.cc:
2494         Likewise.
2495         * testsuite/special_functions/03_beta/check_nan.cc: Likewise.
2496         * testsuite/special_functions/04_comp_ellint_1/check_nan.cc:
2497         Likewise.
2498         * testsuite/special_functions/05_comp_ellint_2/check_nan.cc:
2499         Likewise.
2500         * testsuite/special_functions/06_comp_ellint_3/check_nan.cc:
2501         Likewise.
2502         * testsuite/special_functions/06_comp_ellint_3/pr66689.cc:
2503         Likewise.
2504         * testsuite/special_functions/07_cyl_bessel_i/check_nan.cc:
2505         Likewise.
2506         * testsuite/special_functions/08_cyl_bessel_j/check_nan.cc:
2507         Likewise.
2508         * testsuite/special_functions/09_cyl_bessel_k/check_nan.cc:
2509         Likewise.
2510         * testsuite/special_functions/10_cyl_neumann/check_nan.cc:
2511         Likewise.
2512         * testsuite/special_functions/11_ellint_1/check_nan.cc: Likewise.
2513         * testsuite/special_functions/12_ellint_2/check_nan.cc: Likewise.
2514         * testsuite/special_functions/13_ellint_3/check_nan.cc: Likewise.
2515         * testsuite/special_functions/13_ellint_3/pr66689.cc: Likewise.
2516         * testsuite/special_functions/14_expint/check_nan.cc: Likewise.
2517         * testsuite/special_functions/15_hermite/check_nan.cc: Likewise.
2518         * testsuite/special_functions/16_laguerre/check_nan.cc: Likewise.
2519         * testsuite/special_functions/17_legendre/check_nan.cc: Likewise.
2520         * testsuite/special_functions/18_riemann_zeta/check_nan.cc:
2521         Likewise.
2522         * testsuite/special_functions/19_sph_bessel/check_nan.cc:
2523         Likewise.
2524         * testsuite/special_functions/20_sph_legendre/check_nan.cc:
2525         Likewise.
2526         * testsuite/special_functions/21_sph_neumann/check_nan.cc:
2527         Likewise.
2528
2529 2018-01-18  Uros Bizjak  <ubizjak@gmail.com>
2530
2531         * configure.ac (AC_CHECK_HEADERS): Add linux/types.h.  Conditionally
2532         include linux/types.h when checking linux/random.h header.
2533         * config.h.in: Regenerate.
2534         * configure: Ditto.
2535         * src/c++11/random.cc: Conditionally include linux/types.h.
2536
2537 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
2538
2539         * testsuite/17_intro/names.cc: Undefine 'y' on SPARC/Linux.
2540
2541 2018-01-16  Jonathan Wakely  <jwakely@redhat.com>
2542
2543         PR libstdc++/83834
2544         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace std::c[a-g]* wildcard
2545         pattern with exact match for std::cerr.
2546
2547 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
2548
2549         PR libstdc++/83833
2550         * include/bits/random.h (chi_squared_distribution::param): Update
2551         gamma distribution parameter.
2552         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc: New
2553         test.
2554
2555         PR libstdc++/83830
2556         * include/std/type_traits (has_unique_object_representations_v): Add
2557         variable template.
2558         * testsuite/20_util/has_unique_object_representations/value.cc: Check
2559         variable template.
2560
2561 2018-01-15  Ville Voutilainen  <ville.voutilainen@gmail.com>
2562
2563         Make optional conditionally
2564         trivially_{copy,move}_{constructible,assignable}
2565         * include/std/optional (_Optional_payload): Fix the comment in
2566         the class head and turn into a primary and one specialization.
2567         (_Optional_payload::_M_engaged): Strike the NSDMI.
2568         (_Optional_payload<_Tp, false>::operator=(const _Optional_payload&)):
2569         New.
2570         (_Optional_payload<_Tp, false>::operator=(_Optional_payload&&)):
2571         Likewise.
2572         (_Optional_payload<_Tp, false>::_M_get): Likewise.
2573         (_Optional_payload<_Tp, false>::_M_reset): Likewise.
2574         (_Optional_base_impl): Likewise.
2575         (_Optional_base): Turn into a primary and three specializations.
2576         (optional(nullopt)): Change the base init.
2577         * testsuite/20_util/optional/assignment/8.cc: New.
2578         * testsuite/20_util/optional/cons/trivial.cc: Likewise.
2579         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
2580
2581 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
2582
2583         PR libstdc++/80276
2584         * python/libstdcxx/v6/printers.py (strip_inline_namespaces): New.
2585         (get_template_arg_list): New.
2586         (StdVariantPrinter._template_args): Remove, use get_template_arg_list
2587         instead.
2588         (TemplateTypePrinter): Rewrite to work with gdb.Type objects instead
2589         of strings and regular expressions.
2590         (add_one_template_type_printer): Adapt to new TemplateTypePrinter.
2591         (FilteringTypePrinter): Add docstring. Match using startswith. Use
2592         strip_inline_namespaces instead of strip_versioned_namespace.
2593         (add_one_type_printer): Prepend namespace to match argument.
2594         (register_type_printers): Add type printers for char16_t and char32_t
2595         string types and for types using cxx11 ABI. Update calls to
2596         add_one_template_type_printer to provide default argument dicts.
2597         * testsuite/libstdc++-prettyprinters/80276.cc: New test.
2598         * testsuite/libstdc++-prettyprinters/whatis.cc: Remove tests for
2599         basic_string<unsigned char> and basic_string<signed char>.
2600         * testsuite/libstdc++-prettyprinters/whatis2.cc: Duplicate whatis.cc
2601         to test local variables, without overriding _GLIBCXX_USE_CXX11_ABI.
2602
2603 2018-01-14  Andreas Schwab  <schwab@linux-m68k.org>
2604
2605         PR libstdc++/81092
2606         * config/abi/post/ia64-linux-gnu/baseline_symbols.txt: Update.
2607
2608 2018-01-13  Tim Shen  <timshen@google.com>
2609
2610         PR libstdc++/83601
2611         * include/bits/regex.tcc (regex_replace): Fix escaping in sed.
2612         * testsuite/28_regex/algorithms/regex_replace/char/pr83601.cc: Tests.
2613         * testsuite/28_regex/algorithms/regex_replace/wchar_t/pr83601.cc: Tests.
2614
2615 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
2616
2617         PR libstdc++/64054
2618         * testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc:
2619         Remove dg-xfail-run-if.
2620
2621 2018-01-10  François Dumont  <fdumont@gcc.gnu.org>
2622
2623         * include/bits/forward_list.h
2624         (_Fwd_list_node_base(_Fwd_list_node_base&&)): New.
2625         (_Fwd_list_node_base& operator=(_Fwd_list_node_base&&)): New.
2626         (_Fwd_list_node_base(const _Fwd_list_node_base&)): Explicit delete.
2627         (_Fwd_list_node_base& operator=(const _Fwd_list_node_base&)): Likewise.
2628         (_Fwd_list_impl()): Add noexcept qualification.
2629         (_Fwd_list_impl(const _Node_alloc_type&)): Delete.
2630         (_Fwd_list_impl(_Fwd_list_impl&&)): New, default.
2631         (_Fwd_list_impl(_Fwd_list_impl&&, _Node_alloc_type&&)): New.
2632         (_Fwd_list_base()): Default.
2633         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&, true_type)): New.
2634         (_Fwd_list_base(_Fwd_list_base&&)): Default.
2635         (forward_list<>()): Default.
2636         (forward_list<>(forward_list&&)): Default.
2637         (forward_list(forward_list&&, _Node_alloc_type&&, false_type)): New.
2638         (forward_list(forward_list&&, _Node_alloc_type&&, true_type)): New.
2639         (forward_list(forward_list&&, const _Alloc&)): Adapt to use latters.
2640         * include/bits/forward_list.tcc
2641         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&)): Adapt to use
2642         _M_impl._M_head move assignment.
2643         (forward_list<>::merge(forward_list<>&&, _Comp)): Likewise.
2644         * testsuite/23_containers/forward_list/allocator/default_init.cc: New.
2645
2646 2018-01-09  Jonathan Wakely  <jwakely@redhat.com>
2647
2648         PR libstdc++/80276
2649         * python/libstdcxx/v6/printers.py (SharedPointerPrinter)
2650         (UniquePointerPrinter): Print correct template argument, not type of
2651         the pointer.
2652         (TemplateTypePrinter._recognizer.recognize): Handle failure to lookup
2653         a type.
2654         * testsuite/libstdc++-prettyprinters/cxx11.cc: Test unique_ptr of
2655         array type.
2656         * testsuite/libstdc++-prettyprinters/cxx17.cc: Test shared_ptr and
2657         weak_ptr of array types.
2658
2659 2018-01-09  François Dumont  <fdumont@gcc.gnu.org>
2660
2661         PR libstdc++/83709
2662         * include/bits/hashtable_policy.h
2663         (__distance_fwd(_Iterator, _Iterator, input_iterator_tag)): Return 1 if
2664         __first != __last.
2665         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, true_type)): New.
2666         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, false_type)):
2667         Add false_type parameter.
2668         (_Insert_base::insert): Adapt.
2669         * include/bits/hashtable.h (_Hashtable::operator=(initializzr_list<>)):
2670         Adapt.
2671         (_Hashtable::_M_insert(_Arg&&, const _NodeGen&, true_type, size_t)):
2672          Add __n_elt parameter, defaulted to 1.
2673         (_Hashtable::_M_insert_unique_node): Likewise. Use it to call rehash
2674         policy _M_need_rehash.
2675         (_Hashtable::_M_merge_unique): Pass target number of elements to add to
2676         produce only 1 rehash if necessary.
2677         * testsuite/23_containers/unordered_map/insert/83709.cc: New.
2678         * testsuite/23_containers/unordered_set/insert/83709.cc: New.
2679
2680 2018-01-09  Juraj Oršulić  <juraj.orsulic@fer.hr>
2681             Jonathan Wakely  <jwakely@redhat.com>
2682
2683         PR libstdc++/59253 (partial)
2684         * python/libstdcxx/v6/printers.py (SmartPtrIterator): Common iterator
2685         type for pointer stored by shared_ptr, weak_ptr and unique_ptr.
2686         (SharedPointerPrinter, UniquePointerPrinter): Treat stored values as
2687         children.
2688         * testsuite/libstdc++-prettyprinters/cxx11.cc: Update expected output
2689         of unique_ptr printer.
2690         * testsuite/libstdc++-prettyprinters/shared_ptr.cc: Update expected
2691         output of shared_ptr printer.
2692
2693 2018-01-05  Jonathan Wakely  <jwakely@redhat.com>
2694
2695         PR libstdc++/83626
2696         * src/filesystem/ops.cc (remove(const path&, error_code&)): Remove
2697         unnecessary symlink_status call.
2698         (remove_all(const path&, error_code&)): Use filesystem::remove.
2699         * src/filesystem/std-ops.cc: Likewise.
2700
2701         PR libstdc++/83279
2702         * src/filesystem/std-ops.cc  (do_copy_file): Use non-null offset with
2703         sendfile.
2704
2705         PR libstdc++/83626
2706         * src/filesystem/ops.cc (remove(const path&, error_code&)): Do not
2707         report an error for ENOENT.
2708         (remove_all(const path&)): Fix type of result variable.
2709         (remove_all(const path&, error_code&)): Use non-throwing increment
2710         for directory iterator. Call POSIX remove directly to avoid redundant
2711         calls to symlink_status. Do not report errors for ENOENT.
2712         * src/filesystem/std-ops.cc: Likewise.
2713         * testsuite/27_io/filesystem/operations/remove_all.cc: Test throwing
2714         overload.
2715         * testsuite/experimental/filesystem/operations/remove_all.cc:
2716         Likewise.
2717
2718 2018-01-04  Jonathan Wakely  <jwakely@redhat.com>
2719
2720         PR libstdc++/83626
2721         * src/filesystem/ops.cc (remove(const path&, error_code&))): Remove
2722         redundant call to ec.clear().
2723         (remove_all(const path&, error_code&))): Do not return an error for
2724         non-existent paths.
2725         * src/filesystem/std-ops.cc: Likewise.
2726         * testsuite/27_io/filesystem/operations/remove.cc: New test.
2727         * testsuite/27_io/filesystem/operations/remove_all.cc: Fix expected
2728         results for non-existent paths.
2729         * testsuite/experimental/filesystem/operations/remove.cc: New test.
2730         * testsuite/experimental/filesystem/operations/remove_all.cc: Fix
2731         expected results for non-existent paths.
2732
2733         * include/bits/fs_ops.h (exists(const path&, error_code&))): Only
2734         check status_known once.
2735         * include/experimental/bits/fs_ops.h: Likewise.
2736
2737         PR libstdc++/83607
2738         * include/std/functional (__is_byte_like): New trait.
2739         (__is_std_equal_to): Remove.
2740         (__boyer_moore_base_t): Use __is_byte_like instead of
2741         __is_std_equal_to.
2742         * include/experimental/functional (__is_std_equal_to): Remove.
2743         (__boyer_moore_base_t): Use __is_byte_like instead of
2744         __is_std_equal_to.
2745         * testsuite/20_util/function_objects/83607.cc: New test.
2746
2747 2018-01-03  Ville Voutilainen  <ville.voutilainen@gmail.com>
2748
2749         Protect optional's deduction guide with the feature macro
2750         * include/std/optional: Use the feature macro.
2751
2752 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
2753
2754         Update copyright years.
2755 \f
2756 Copyright (C) 2018 Free Software Foundation, Inc.
2757
2758 Copying and distribution of this file, with or without modification,
2759 are permitted in any medium without royalty provided the copyright
2760 notice and this notice are preserved.