libstdc++-v3/ChangeLog

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