libstdc++-v3/ChangeLog

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