libstdc++-v3/ChangeLog

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