libstdc++-v3/ChangeLog

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