libstdc++-v3/ChangeLog

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