libstdc++-v3/ChangeLog

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