libstdc++-v3/ChangeLog

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