libstdc++-v3/ChangeLog

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