libstdc++-v3/ChangeLog

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