libstdc++-v3/ChangeLog

   1 2018-12-06  Iain Sandoe  <iain@sandoe.co.uk>
   2
   3         * scripts/make_exports.pl (check names): Don’t try to export
   4         construction vtable symbols.
   5
   6 2018-12-06  Jonathan Wakely  <jwakely@redhat.com>
   7             Iain Sandoe  <iain@sandoe.co.uk>
   8
   9         PR libstdc++/64883
  10         * testsuite/17_intro/headers/c++1998/all_attributes.cc: Don't test
  11         always_inline on Darwin.
  12         * testsuite/17_intro/headers/c++2011/all_attributes.cc: Likewise.
  13         * testsuite/17_intro/headers/c++2014/all_attributes.cc: Likewise.
  14         * testsuite/17_intro/headers/c++2017/all_attributes.cc: Likewise.
  15         * testsuite/17_intro/headers/c++2020/all_attributes.cc: Likewise.
  16
  17 2018-12-03  Edward Smith-Rowland  <3dw4rd@verizon.net>
  18
  19         PR libstdc++/88341 - Complex norm doesn't compile with C++11
  20         * include/std/complex (_S_do_it): Make C++20 constexpr.
  21         * testsuite/26_numerics/complex/value_operations/pr88341.cc: New test.
  22
  23 2018-11-30  Edward Smith-Rowland  <3dw4rd@verizon.net>
  24
  25         Implement P0457R2 String Prefix and Suffix Checking.
  26         * include/bits/basic_string.h: Add starts_with, ends_with members.
  27         * include/std/string_view: Ditto.
  28         * testsuite/21_strings/basic_string/operations/starts_with/
  29         char/1.cc: New test.
  30         * testsuite/21_strings/basic_string/operations/starts_with/
  31         wchar_t/1.cc: New test.
  32         * testsuite/21_strings/basic_string/operations/ends_with/
  33         char/1.cc: New test.
  34         * testsuite/21_strings/basic_string/operations/ends_with/
  35         wchar_t/1.cc: New test.
  36         * testsuite/21_strings/basic_string_view/operations/starts_with/
  37         char/1.cc: New test.
  38         * testsuite/21_strings/basic_string_view/operations/starts_with/
  39         wchar_t/1.cc: New test.
  40         * testsuite/21_strings/basic_string_view/operations/ends_with/
  41         char/1.cc: New test.
  42         * testsuite/21_strings/basic_string_view/operations/ends_with/
  43         wchar_t/1.cc: New test.
  44
  45 2018-11-30  Edward Smith-Rowland  <3dw4rd@verizon.net>
  46
  47         Pre-emptively support P0646R1 for std container erasure.
  48         * include/bits/erase_if.h: Accumulate and return number of erased nodes.
  49         * include/std/forward_list (): Return number of erased items.
  50         * include/std/list (): Ditto.
  51         * include/std/map (): Ditto.
  52         * include/std/set (): Ditto.
  53         * include/std/string (): Ditto.
  54         * include/std/unordered_map (): Ditto.
  55         * include/std/unordered_set (): Ditto.
  56         * include/std/vector (): Ditto.
  57         * include/std/deque (): Ditto.
  58         * testsuite/21_strings/basic_string/erasure.cc: Test number of erasures.
  59         * testsuite/23_containers/deque/erasure.cc: Ditto.
  60         * testsuite/23_containers/forward_list/erasure.cc: Ditto.
  61         * testsuite/23_containers/list/erasure.cc: Ditto.
  62         * testsuite/23_containers/map/erasure.cc: Ditto.
  63         * testsuite/23_containers/set/erasure.cc: Ditto.
  64         * testsuite/23_containers/unordered_map/erasure.cc: Ditto.
  65         * testsuite/23_containers/unordered_set/erasure.cc: Ditto.
  66         * testsuite/23_containers/vector/erasure.cc: Ditto.
  67
  68 2018-11-29  Edward Smith-Rowland  <3dw4rd@verizon.net>
  69
  70         Only include bits/stl_algo.h for C++20.
  71         * include/std/deque: Only include bits/stl_algo.h for C++20.
  72         * include/std/string: Ditto.
  73         * include/std/vector: Ditto.
  74
  75 2018-11-29  Edward Smith-Rowland  <3dw4rd@verizon.net>
  76
  77         Fix erasure goofs.
  78         * include/experimental/deque: Make inline.
  79         * include/std/deque: Include bits/stl_algo.h.
  80         (erase, erase_if): Make inline.
  81         * include/std/string: Include bits/stl_algo.h.
  82         * include/std/unordered_set: Add erase, erase_if!
  83         * include/std/vector: Include bits/stl_algo.h.
  84         * testsuite/21_strings/basic_string/erasure.cc:
  85         Add { dg-options "-std=gnu++2a" }.
  86         * testsuite/23_containers/deque/erasure.cc: Ditto.
  87         * testsuite/23_containers/forward_list/erasure.cc: Ditto.
  88         * testsuite/23_containers/list/erasure.cc: Ditto.
  89         * testsuite/23_containers/map/erasure.cc: Ditto.
  90         * testsuite/23_containers/set/erasure.cc: Ditto.
  91         * testsuite/23_containers/unordered_map/erasure.cc: Ditto.
  92         * testsuite/23_containers/unordered_set/erasure.cc: Ditto.
  93         * testsuite/23_containers/vector/erasure.cc: Ditto.
  94
  95 2018-11-29  Jonathan Wakely  <jwakely@redhat.com>
  96
  97         PR libstdc++/88119
  98         * include/ext/aligned_buffer.h (__aligned_membuf): Add comment.
  99         (__aligned_buffer): Use __alignof__ instead of std::alignment_of.
 100         * include/std/type_traits (alignment_of): Use alignof instead of
 101         __alignof__.
 102         * testsuite/20_util/alignment_of/value.cc: Fix test to check values
 103         match alignof not __alignof__, as required by the standard.
 104
 105         PR libstdc++/86910
 106         PR libstdc++/87846
 107         * src/filesystem/ops.cc (experimental::create_directories): Report
 108         an error when the path resolves to an existing non-directory (P1164).
 109         * src/filesystem/std-ops.cc (create_directories): Likewise. Handle
 110         empty filenames due to trailing slashes.
 111         * testsuite/27_io/filesystem/operations/create_directories.cc: Test
 112         when some component of the path exists and is not a directory. Test
 113         trailing slashes.
 114         * testsuite/experimental/filesystem/operations/create_directories.cc:
 115         Likewise.
 116
 117 2018-11-28  Jonathan Wakely  <jwakely@redhat.com>
 118
 119         PR libstdc++/83306
 120         * src/filesystem/path.cc (filesystem_error::_M_gen_what()): Create
 121         string directly, instead of calling fs_err_concat.
 122
 123         PR libstdc++/83511
 124         * include/std/string_view (basic_string_view::substr): Add default
 125         argument to first parameter.
 126         * include/experimental/string_view (basic_string_view::substr):
 127         Likewise.
 128         * testsuite/21_strings/basic_string_view/operations/substr/char/
 129         83511.cc: New test.
 130         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t/
 131         83511.cc: New test.
 132         * testsuite/experimental/string_view/operations/substr/char/83511.cc:
 133         New test.
 134         * testsuite/experimental/string_view/operations/substr/wchar_t/83511.cc:
 135         New test.
 136
 137 2018-11-28  Edward Smith-Rowland  <3dw4rd@verizon.net>
 138
 139         Implement uniform container erasure for C++20.
 140         * include/Makefile.am: Move erase_if.h.
 141         * include/Makefile.in: Move erase_if.h.
 142         * include/experimental/bits/erase_if.h: Move ...
 143         * include/bits/erase_if.h: ... here.
 144         * include/experimental/map: Move erase_if.h.
 145         * include/experimental/set: Move erase_if.h.
 146         * include/experimental/unordered_map: Move erase_if.h.
 147         * include/experimental/unordered_set: Move erase_if.h.
 148         * include/std/deque (erase_if, erase): New functions.
 149         * include/std/forward_list: Ditto.
 150         * include/std/list: Ditto.
 151         * include/std/map: Ditto.
 152         * include/std/set: Ditto.
 153         * include/std/string: Ditto.
 154         * include/std/unordered_map: Ditto.
 155         * include/std/unordered_set: Ditto.
 156         * include/std/vector: Ditto.
 157         * testsuite/21_strings/basic_string/erasure.cc: New test.
 158         * testsuite/23_containers/deque/erasure.cc: New test.
 159         * testsuite/23_containers/forward_list/erasure.cc: New test.
 160         * testsuite/23_containers/list/erasure.cc: New test.
 161         * testsuite/23_containers/map/erasure.cc: New test.
 162         * testsuite/23_containers/set/erasure.cc: New test.
 163         * testsuite/23_containers/unordered_map/erasure.cc: New test.
 164         * testsuite/23_containers/unordered_set/erasure.cc: New test.
 165         * testsuite/23_containers/vector/erasure.cc: New test.
 166
 167 2018-11-28  Jonathan Wakely  <jwakely@redhat.com>
 168
 169         * doc/xml/manual/intro.xml: Document LWG 3096 change.
 170         * src/filesystem/std-path.cc (path::lexically_relative(const path&)):
 171         Treat a final empty element equivalently to a final dot element.
 172         * testsuite/27_io/filesystem/path/generation/relative.cc: Add checks
 173         for the examples in the DR.
 174
 175         PR libstdc++/83306
 176         * include/bits/fs_path.h (filesystem_error): Move data members into
 177         pimpl class owned by shared_ptr. Remove inline definitions of member
 178         functions.
 179         * src/filesystem/std-path.cc (filesystem_error::_Impl): Define.
 180         (filesystem_error): Define member functions.
 181         * testsuite/27_io/filesystem/filesystem_error/cons.cc: New test.
 182         * testsuite/27_io/filesystem/filesystem_error/copy.cc: New test.
 183
 184         * doc/xml/manual/status_cxx2017.xml: Update C++17 status.
 185         * doc/html/*: Regenerate.
 186
 187 2018-11-27  Jonathan Wakely  <jwakely@redhat.com>
 188
 189         * testsuite/27_io/filesystem/operations/canonical.cc: Remove
 190         directory created by test.
 191         * testsuite/27_io/filesystem/operations/symlink_status.cc: Remove
 192         symlink created by test.
 193
 194         PR libstdc++/67843
 195         * acinclude.m4 (GLIBCXX_ENABLE_LOCK_POLICY): Add new macro
 196         that defines _GLIBCXX_HAVE_ATOMIC_LOCK_POLICY.
 197         * config.h.in: Regenerate.
 198         * configure: Regenerate.
 199         * configure.ac: Use GLIBCXX_ENABLE_LOCK_POLICY.
 200         * doc/xml/manual/configure.xml: Document new configure option.
 201         * include/bits/fs_dir.h (directory_iterator): Use __shared_ptr
 202         instead of shared_ptr.
 203         (recursive_directory_iterator): Likewise.
 204         (__shared_ptr<_Dir>): Add explicit instantiation declaration.
 205         (__shared_ptr<recursive_directory_iterator::_Dir_stack>): Likewise.
 206         * include/bits/shared_ptr_base.h (__allocate_shared, __make_shared):
 207         Add default template argument for _Lock_policy template parameter.
 208         * include/ext/concurrence.h (__default_lock_policy): Check macro
 209         _GLIBCXX_HAVE_ATOMIC_LOCK_POLICY instead of checking if the current
 210         target supports the builtins for compare-and-swap.
 211         * src/filesystem/std-dir.cc (__shared_ptr<_Dir>): Add explicit
 212         instantiation definition.
 213         (__shared_ptr<recursive_directory_iterator::_Dir_stack>): Likewise.
 214         (directory_iterator, recursive_directory_iterator): Use __make_shared
 215         instead of make_shared.
 216
 217 2018-11-27  François Dumont  <fdumont@gcc.gnu.org>
 218
 219         PR libstdc++/88199
 220         * include/bits/hashtable.h (_Hashtable<>::_M_assign_elements): New.
 221         (_Hashtable<>::operator=(const _Hashtable&)): Use latter.
 222         (_Hashtable<>::_M_move_assign(_Hashtable&&, false_type)): Likewise.
 223         * testsuite/23_containers/unordered_set/allocator/move_assign.cc
 224         (test03): New.
 225
 226 2018-11-26  Jonathan Wakely  <jwakely@redhat.com>
 227
 228         * testsuite/26_numerics/complex/requirements/more_constexpr.cc: Fix
 229         failure on targets without __float128.
 230
 231 2018-11-23  Edward Smith-Rowland  <3dw4rd@verizon.net>
 232
 233         Implement P0415 More constexpr for std::complex.
 234         * include/std/complex (conj(complex<Tp>), norm(complex<Tp>)): Constexpr;
 235         (real(Tp), imag(Tp)): Constexpr;
 236         (operator@=(Tp), operator@=(complex<Tp>)): Constexpr;
 237         (operator@(Tp,complex<Tp>), operator@(complex<Tp>,Tp)
 238         operator@(complex<Tp>,complex<Tp>)): Constexpr.
 239         * testsuite/26_numerics/complex/comparison_operators/
 240         more_constexpr.cc: New test.
 241         * testsuite/26_numerics/complex/operators/more_constexpr.cc: New test.
 242         * testsuite/26_numerics/complex/requirements/
 243         more_constexpr.cc: New test.
 244         * testsuite/26_numerics/complex/value_operations/
 245         more_constexpr.cc: New test.
 246         * testsuite/26_numerics/headers/complex/synopsis.cc:
 247         Add _GLIBCXX20_CONSTEXPR to applicable operators; Add missing proj().
 248         * testsuite/26_numerics/headers/complex/synopsis.cc:
 249         Add _GLIBCXX20_CONSTEXPR to relevant decls.
 250
 251 2018-11-23  Martin Sebor  <msebor@redhat.com>
 252             Jonathan Wakely  <jwakely@redhat.com>
 253
 254         PR libstdc++/65229
 255         * python/libstdcxx/v6/printers.py (StdBitsetPrinter): Handle
 256         exception thrown for std::bitset<0>.
 257         * testsuite/libstdc++-prettyprinters/simple.cc: Test std::bitset<0>.
 258
 259 2018-11-23  Jonathan Wakely  <jwakely@redhat.com>
 260
 261         PR libstdc++/87308 (partial)
 262         * python/libstdcxx/v6/printers.py (StdExpAnyPrinter): Adjust regex to
 263         work around PR 88166.
 264         * testsuite/libstdc++-prettyprinters/cxx17.cc: Test std::any
 265         containing a local type.
 266
 267 2018-11-22  Marc Glisse  <marc.glisse@inria.fr>
 268
 269         PR libstdc++/87106
 270         * include/bits/stl_algobase.h: Include <type_traits>.
 271         (__niter_base): Add noexcept specification.
 272         * include/bits/stl_deque.h: Include <bits/stl_uninitialized.h>.
 273         (__is_trivially_relocatable): Specialize for deque.
 274         * include/bits/stl_iterator.h: Include <type_traits>.
 275         (__niter_base): Add noexcept specification.
 276         * include/bits/stl_uninitialized.h (__is_trivially_relocatable):
 277         Add parameter for meta-programming.
 278         (__relocate_a_1, __relocate_a): Add noexcept specification.
 279         * include/bits/stl_vector.h (__use_relocate): Test __relocate_a.
 280
 281 2018-11-22  Jonathan Wakely  <jwakely@redhat.com>
 282
 283         PR libstdc++/85930
 284         PR libstdc++/87520
 285         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti)
 286         [__cpp_rtti]: Define even when RTTI is enabled. Use array of
 287         sizeof(type_info) so that type-punned reference binds to an object
 288         of the correct size as well as correct alignment.
 289         (_Sp_counted_ptr_inplace::_M_get_deleter) [__cpp_rtti]: Check for
 290         _S_ti() reference even when RTTI is enabled.
 291         (__shared_ptr(_Sp_make_shared_tag, const _Alloc&, _Args&&...))
 292         [__cpp_rtti]: Pass _S_ti() instead of typeid(_Sp_make_shared_tag).
 293
 294 2018-11-21  Jakub Jelinek  <jakub@redhat.com>
 295
 296         PR c++/87386
 297         * testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust expected
 298         line.
 299         * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
 300         * testsuite/20_util/uses_allocator/69293_neg.cc: Likewise.
 301         * testsuite/experimental/propagate_const/requirements2.cc: Likewise.
 302         * testsuite/experimental/propagate_const/requirements3.cc: Likewise.
 303         * testsuite/experimental/propagate_const/requirements4.cc: Likewise.
 304         * testsuite/experimental/propagate_const/requirements5.cc: Likewise.
 305
 306 2018-11-21  Jonathan Wakely  <jwakely@redhat.com>
 307
 308         PR libstdc++/88111
 309         * include/std/memory_resource (pool_options): Add Doxygen comments.
 310         * src/c++17/memory_resource.cc (pool_sizes): Only use suitable values
 311         on targets with 16-bit or 20-bit size_t type.
 312         (munge_options): Make default values depend on width of size_t type.
 313
 314         PR libstdc++/88113
 315         * src/c++17/memory_resource.cc (bitset::size_type): Use the smaller
 316         of uint32_t and size_t.
 317         (bitset::size(), bitset::free(), bitset::update_next_word())
 318         (bitset::max_blocks_per_chunk(), bitset::max_word_index()): Use
 319         size_type consistently instead of size_t.
 320         (chunk): Adjust static_assert checking sizeof(chunk).
 321
 322 2018-11-20  Ville Voutilainen  <ville.voutilainen@gmail.com>
 323
 324         Housekeeping for the effective targets of optional's tests.
 325         * testsuite/20_util/optional/77288.cc: Adjust.
 326         * testsuite/20_util/optional/84601.cc: Likewise.
 327         * testsuite/20_util/optional/assignment/1.cc: Likewise.
 328         * testsuite/20_util/optional/assignment/2.cc: Likewise.
 329         * testsuite/20_util/optional/assignment/3.cc: Likewise.
 330         * testsuite/20_util/optional/assignment/4.cc: Likewise.
 331         * testsuite/20_util/optional/assignment/5.cc: Likewise.
 332         * testsuite/20_util/optional/assignment/6.cc: Likewise.
 333         * testsuite/20_util/optional/assignment/7.cc: Likewise.
 334         * testsuite/20_util/optional/assignment/8.cc: Likewise.
 335         * testsuite/20_util/optional/cons/77727.cc: Likewise.
 336         * testsuite/20_util/optional/cons/copy.cc: Likewise.
 337         * testsuite/20_util/optional/cons/deduction.cc: Likewise.
 338         * testsuite/20_util/optional/cons/default.cc: Likewise.
 339         * testsuite/20_util/optional/cons/move.cc: Likewise.
 340         * testsuite/20_util/optional/cons/trivial.cc: Likewise.
 341         * testsuite/20_util/optional/cons/value.cc: Likewise.
 342         * testsuite/20_util/optional/cons/value_neg.cc: Likewise.
 343         * testsuite/20_util/optional/constexpr/cons/default.cc: Likewise.
 344         * testsuite/20_util/optional/constexpr/cons/value.cc: Likewise.
 345         * testsuite/20_util/optional/constexpr/in_place.cc: Likewise.
 346         * testsuite/20_util/optional/constexpr/nullopt.cc: Likewise.
 347         * testsuite/20_util/optional/constexpr/observers/1.cc: Likewise.
 348         * testsuite/20_util/optional/constexpr/observers/4.cc: Likewise.
 349         * testsuite/20_util/optional/constexpr/observers/5.cc: Likewise.
 350         * testsuite/20_util/optional/constexpr/relops/1.cc: Likewise.
 351         * testsuite/20_util/optional/constexpr/relops/2.cc: Likewise.
 352         * testsuite/20_util/optional/constexpr/relops/3.cc: Likewise.
 353         * testsuite/20_util/optional/constexpr/relops/4.cc: Likewise.
 354         * testsuite/20_util/optional/constexpr/relops/5.cc: Likewise.
 355         * testsuite/20_util/optional/constexpr/relops/6.cc: Likewise.
 356         * testsuite/20_util/optional/in_place.cc: Likewise.
 357         * testsuite/20_util/optional/make_optional.cc: Likewise.
 358         * testsuite/20_util/optional/nullopt.cc: Likewise.
 359         * testsuite/20_util/optional/observers/1.cc: Likewise.
 360         * testsuite/20_util/optional/observers/2.cc: Likewise.
 361         * testsuite/20_util/optional/observers/3.cc: Likewise.
 362         * testsuite/20_util/optional/observers/4.cc: Likewise.
 363         * testsuite/20_util/optional/observers/5.cc: Likewise.
 364         * testsuite/20_util/optional/observers/6.cc: Likewise.
 365         * testsuite/20_util/optional/relops/1.cc: Likewise.
 366         * testsuite/20_util/optional/relops/2.cc: Likewise.
 367         * testsuite/20_util/optional/relops/3.cc: Likewise.
 368         * testsuite/20_util/optional/relops/4.cc: Likewise.
 369         * testsuite/20_util/optional/relops/5.cc: Likewise.
 370         * testsuite/20_util/optional/relops/6.cc: Likewise.
 371         * testsuite/20_util/optional/relops/7.cc: Likewise.
 372         * testsuite/20_util/optional/requirements.cc: Likewise.
 373         * testsuite/20_util/optional/swap/1.cc: Likewise.
 374         * testsuite/20_util/optional/swap/2.cc: Likewise.
 375         * testsuite/20_util/optional/typedefs.cc: Likewise.
 376
 377 2018-11-19  François Dumont  <fdumont@gcc.gnu.org>
 378
 379         * include/ext/throw_allocator.h
 380         (annotate_base::insert(void*, size_t)): Use insert result to check for
 381         double insert attempt.
 382         (annotate_base::insert_construct(void*)): Likewise.
 383         (annotate_base::check_allocated(void*, size_t)): Return found iterator.
 384         (annotate_base::erase(void*, size_t)): Use latter method returned
 385         iterator.
 386         (annotate_base::check_constructed(void*, size_t)): Return found iterator.
 387         (annotate_base::erase_construct(void*)): Use latter method returned
 388         iterator.
 389
 390 2018-11-19  Ville Voutilainen  <ville.voutilainen@gmail.com>
 391
 392         PR libstdc++/87855
 393         Also implement P0602R4 (variant and optional
 394         should propagate copy/move triviality) for std::optional.
 395         * include/std/optional (_Optional_payload): Change
 396         the main constraints to check constructibility in
 397         addition to assignability.
 398         (operator=): Make constexpr.
 399         (_M_reset): Likewise.
 400         (_M_construct): Likewise.
 401         (operator->): Likewise.
 402         * testsuite/20_util/optional/assignment/8.cc: Adjust.
 403         * testsuite/20_util/optional/assignment/9.cc: New.
 404
 405 2018-11-19  Jonathan Wakely  <jwakely@redhat.com>
 406
 407         PR libstdc++/88084 - Implement LWG 2777
 408         * include/std/string_view (basic_string_view::copy): Use traits to
 409         copy.
 410         * testsuite/21_strings/basic_string_view/operations/copy/char/2.cc:
 411         New test.
 412         * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/2.cc:
 413         New test.
 414
 415 2018-11-18  Michele Pezzutti <mpezz@tiscali.it>
 416             Edward Smith-Rowland  <3dw4rd@verizon.net>
 417
 418         PR libstdc++/83566 - cyl_bessel_j returns wrong result for x>1000
 419         for high orders.
 420         * include/tr1/bessel_function.tcc: Perform no fewer than nu/2 iterations
 421         of the asymptotic series (nu is the Bessel order).
 422         * testsuite/tr1/5_numerical_facilities/special_functions/
 423         09_cyl_bessel_j/check_value.cc: Add tests at nu=100, 1000<=x<=2000.
 424         * testsuite/tr1/5_numerical_facilities/special_functions/
 425         11_cyl_neumann/check_value.cc: Ditto.
 426         * testsuite/special_functions/08_cyl_bessel_j/check_value.cc: Ditto.
 427         * testsuite/special_functions/10_cyl_neumann/check_value.cc: Ditto.
 428
 429 2018-11-17  Jonathan Wakely  <jwakely@redhat.com>
 430
 431         Implement std::pmr::synchronized_pool_resource
 432         * config/abi/pre/gnu.ver: Add new symbols.
 433         * include/std/memory_resource [_GLIBCXX_HAS_GTHREADS]
 434         (__cpp_lib_memory_resource): Define to expected value, 201603.
 435         (synchronized_pool_resource): New class.
 436         [!_GLIBCXX_HAS_GTHREADS] (__cpp_lib_memory_resource): Define to 1.
 437         * include/std/shared_mutex (__glibcxx_rwlock_rdlock)
 438         (__glibcxx_rwlock_tryrdlock, __glibcxx_rwlock_wrlock)
 439         (__glibcxx_rwlock_trywrlock, __glibcxx_rwlock_unlock)
 440         (__glibcxx_rwlock_destroy, __glibcxx_rwlock_init)
 441         (__glibcxx_rwlock_timedrdlock, __glibcxx_rwlock_timedwrlock): Define
 442         weak symbols for POSIX rwlock functions.
 443         (__shared_mutex_pthread): Use weak symbols.
 444         * include/std/version (__cpp_lib_memory_resource): Define.
 445         * src/c++17/memory_resource.cc [_GLIBCXX_HAS_GTHREADS]
 446         (synchronized_pool_resource::_TPools): New class.
 447         (destroy_TPools): New function for pthread_key_create destructor.
 448         (synchronized_pool_resource::synchronized_pool_resource)
 449         (synchronized_pool_resource::~synchronized_pool_resource)
 450         (synchronized_pool_resource::release)
 451         (synchronized_pool_resource::do_allocate)
 452         (synchronized_pool_resource::do_deallocate): Define public members.
 453         (synchronized_pool_resource::_M_thread_specific_pools)
 454         (synchronized_pool_resource::_M_alloc_tpools)
 455         (synchronized_pool_resource::_M_alloc_shared_tpools): Define private
 456         members.
 457         * testsuite/20_util/synchronized_pool_resource/allocate.cc: New test.
 458         * testsuite/20_util/synchronized_pool_resource/cons.cc: New test.
 459         * testsuite/20_util/synchronized_pool_resource/is_equal.cc: New test.
 460         * testsuite/20_util/synchronized_pool_resource/multithreaded.cc: New
 461         test.
 462         * testsuite/20_util/synchronized_pool_resource/release.cc: New test.
 463         * testsuite/performance/20_util/memory_resource/pools.cc: Add
 464         multithreaded tests using pmr::synchronized_pool_resource.
 465
 466 2018-11-16  Renlin Li  <renlin.li@arm.com>
 467             Tejas Belagod  <tejas.belagod@arm.com>
 468
 469         testsuite/lib/libstdc++.exp (check_v3_target_prop_cached): New proc.
 470         (check_v3_target): Use the check_v3_target_prop_cached.
 471
 472 2018-11-15  Jonathan Wakely  <jwakely@redhat.com>
 473
 474         * scripts/check_performance: Allow tests to choose a -std flag.
 475         * src/c++17/memory_resource.cc (bitset::get_first_unset()): Use local
 476         variables of the right types. Call update_next_word() unconditionally.
 477         * testsuite/20_util/unsynchronized_pool_resource/cons.cc: New test.
 478         * testsuite/performance/20_util/memory_resource/pools.cc: New test.
 479         * testsuite/util/testsuite_performance.h (time_counter): Allow
 480         timer to be restarted.
 481
 482         * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Fix
 483         test for 32-bit targets. Test additional allocation sizes.
 484
 485 2018-11-14  Jonathan Wakely  <jwakely@redhat.com>
 486
 487         * scripts/create_testsuite_files: Add special_functions to the list
 488         of directories to search. Add comment referring to conformance.exp.
 489         * testsuite/libstdc++-dg/conformance.exp: Add comment referring
 490         to create_testsuite_files.
 491
 492 2018-11-13  Jonathan Wakely  <jwakely@redhat.com>
 493
 494         * src/c++17/memory_resource.cc (select_num_pools): Fix off-by-one
 495         error when block_size is equal to one of the values in the array.
 496
 497         * src/c++17/memory_resource.cc (_Pool::deallocate): Restore
 498         attributes to parameters that are only used in assertions.
 499
 500         * src/c++17/memory_resource.cc (bitset::find_first_unset()): Remove
 501         unused function.
 502         (bitset::get_first_unset()): Remove loop, if there's are unset bits
 503         then _M_next_word refers to the first one and there's no need to loop.
 504         (_Pool::_Pool(size_t, size_t), _Pool::block_size()): Remove dead code.
 505
 506         * src/c++17/memory_resource.cc (munge_options): Round up value of
 507         largest_required_pool_block to multiple of smallest pool size. Round
 508         excessively large values down to largest pool size.
 509         (select_num_pools): Increase number of pools by one unless it exactly
 510         matches requested largest_required_pool_block.
 511         (__pool_resource::_M_alloc_pools()): Make largest pool size equal
 512         largest_required_pool_block.
 513         * testsuite/20_util/unsynchronized_pool_resource/options.cc: Check
 514         that pool_options::largest_required_pool_block is set appropriately.
 515
 516         * src/c++17/memory_resource.cc (big_block): Improve comments.
 517         (big_block::all_ones): Remove.
 518         (big_block::big_block(size_t, size_t)): Use alloc_size.
 519         (big_block::size()): Add comment, replace all_ones with equivalent
 520         expression.
 521         (big_block::align()): Shift value of correct type.
 522         (big_block::alloc_size(size_t)): New function to round up size.
 523         (__pool_resource::allocate(size_t, size_t)): Add comment.
 524         (__pool_resource::deallocate(void*, size_t, size_t)): Likewise. Fix
 525         incorrect assertion by using big_block::alloc_size(size_t).
 526         * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Add
 527         more tests for unpooled allocations.
 528
 529         * src/c++17/memory_resource.cc (bitset::full()): Handle edge case
 530         for _M_next_word maximum value.
 531         (bitset::get_first_unset(), bitset::set(size_type)): Use
 532         update_next_word() to update _M_next_word.
 533         (bitset::update_next_word()): New function, avoiding wraparound of
 534         unsigned _M_next_word member.
 535         (bitset::max_word_index()): New function.
 536         (chunk::chunk(void*, uint32_t, void*, size_t)): Add assertion.
 537         (chunk::max_bytes_per_chunk()): New function.
 538         (pool::replenish(memory_resource*, const pool_options&)): Prevent
 539         _M_blocks_per_chunk from exceeding max_blocks_per_chunk or from
 540         causing chunk::max_bytes_per_chunk() to be exceeded.
 541         * testsuite/20_util/unsynchronized_pool_resource/allocate-max-chunks.cc:
 542         New test.
 543
 544 2018-11-12  Jason Merrill  <jason@redhat.com>
 545
 546         * libsupc++/new (std::destroying_delete_t): New.
 547
 548 2018-11-12  Jonathan Wakely  <jwakely@redhat.com>
 549
 550         PR libstdc++/87963
 551         * src/c++17/memory_resource.cc (chunk::_M_bytes): Change type from
 552         unsigned to uint32_t.
 553         (chunk): Fix static assertion for 64-bit targets that aren't LP64.
 554         (bigblock::all_ones): Fix undefined shift.
 555
 556 2018-11-11  Hans-Peter Nilsson  <hp@axis.com>
 557
 558         PR libstdc++-v3/54005
 559         * include/bits/atomic_base.h (__atomic_base<_TTp>::is_lock_free(),
 560         __atomic_base<_PTp*>::is_lock_free()): Call __atomic_is_lock_free
 561         with the type-derived _S_alignment instead of __alignof the object.
 562         * include/std/atomic (atomic<T>::is_lock_free()): Likewise.
 563
 564 2018-11-11  Jonathan Wakely  <jwakely@redhat.com>
 565
 566         Implement P0318R1 unwrap_ref_decay and unwrap_reference
 567         * include/std/type_traits (unwrap_reference, unwrap_reference_t)
 568         (unwrap_ref_decay, unwrap_ref_decay_t): New traits and aliases.
 569         * testsuite/20_util/unwrap_reference/1.cc: New test.
 570         * testsuite/20_util/unwrap_reference/2.cc: New test.
 571
 572         Implement P1007R3 std::assume_aligned
 573         * include/std/memory (assume_aligned): Implement for C++17.
 574         * testsuite/20_util/assume_aligned/1.cc: New test.
 575         * testsuite/20_util/assume_aligned/2_neg.cc: New test.
 576         * testsuite/20_util/assume_aligned/3.cc: New test.
 577
 578 2018-11-09  Jonathan Wakely  <jwakely@redhat.com>
 579
 580         PR libstdc++/87787
 581         * include/bits/stl_uninitialized.h (__relocate_a_1): Do not call
 582         memmove when there's nothing to copy (and pointers could be null).
 583
 584 2018-11-07  Hafiz Abid Qadeer  <abidh@codesourcery.com>
 585
 586         * configure: Regenerated.
 587
 588 2018-11-07  Jonathan Wakely  <jwakely@redhat.com>
 589
 590         * config/abi/pre/gnu.ver: Fix patterns for size_t parameters.
 591
 592 2018-11-06  Jonathan Wakely  <jwakely@redhat.com>
 593
 594         Implement std::pmr::unsynchronized_pool_resource
 595         * config/abi/pre/gnu.ver: Add new symbols.
 596         * include/std/memory_resource (std::pmr::__pool_resource): New class.
 597         (std::pmr::unsynchronized_pool_resource): New class.
 598         * src/c++17/Makefile.am: Add -fimplicit-templates to flags for
 599         memory_resource.cc
 600         * src/c++17/Makefile.in: Regenerate.
 601         * src/c++17/memory_resource.cc (bitset, chunk, big_block): New
 602         internal classes.
 603         (__pool_resource::_Pool): Define new class.
 604         (munge_options, pool_index, select_num_pools): New internal functions.
 605         (__pool_resource::__pool_resource, __pool_resource::~__pool_resource)
 606         (__pool_resource::allocate, __pool_resource::deallocate)
 607         (__pool_resource::_M_alloc_pools): Define member functions.
 608         (unsynchronized_pool_resource::unsynchronized_pool_resource)
 609         (unsynchronized_pool_resource::~unsynchronized_pool_resource)
 610         (unsynchronized_pool_resource::release)
 611         (unsynchronized_pool_resource::_M_find_pool)
 612         (unsynchronized_pool_resource::do_allocate)
 613         (unsynchronized_pool_resource::do_deallocate): Define member
 614         functions.
 615         * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: New
 616         test.
 617         * testsuite/20_util/unsynchronized_pool_resource/is_equal.cc: New
 618         test.
 619         * testsuite/20_util/unsynchronized_pool_resource/options.cc: New
 620         test.
 621         * testsuite/20_util/unsynchronized_pool_resource/release.cc: New
 622         test.
 623
 624 2018-11-06  John Bytheway  <jbytheway@gmail.com>
 625
 626         PR libstdc++/87872
 627         * include/debug/safe_sequence.tcc
 628         (_Safe_sequence<>::_M_transfer_from_if): Skip transfer to self.
 629
 630 2018-10-31  Joseph Myers  <joseph@codesourcery.com>
 631
 632         PR bootstrap/82856
 633         * Makefile.am: Include multilib.am.
 634         * configure.ac: Remove AC_PREREQ.
 635         * Makefile.in, aclocal.m4, configure, doc/Makefile.in,
 636         include/Makefile.in, libsupc++/Makefile.in, po/Makefile.in,
 637         python/Makefile.in, src/Makefile.in, src/c++11/Makefile.in,
 638         src/c++17/Makefile.in, src/c++98/Makefile.in,
 639         src/filesystem/Makefile.in, testsuite/Makefile.in: Regenerate.
 640
 641 2018-10-31  Jonathan Wakely  <jwakely@redhat.com>
 642
 643         * testsuite/20_util/pair/87822.cc: Test deeper nesting.
 644
 645         PR libstdc++/87822
 646         * include/bits/stl_pair.h (__pair_base): Change to class template.
 647         (pair): Make base class type depend on template parameters.
 648         * testsuite/20_util/pair/87822.cc: New test.
 649
 650 2018-10-30  Marek Polacek  <polacek@redhat.com>
 651
 652         Implement P0892R2, explicit(bool).
 653         * testsuite/20_util/any/cons/explicit.cc: Adjust dg-error.
 654         * testsuite/20_util/pair/cons/explicit_construct.cc: Likewise.
 655         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
 656
 657 2018-10-30  Jonathan Wakely  <jwakely@redhat.com>
 658
 659         PR libstdc++/87809
 660         * include/bits/forward_list.h (_Fwd_list_impl::_Fwd_list_impl()): Use
 661         trait in exception-specification instead of possibly invalid
 662         expression.
 663         * include/bits/stl_bvector.h (_Bvector_impl::_Bvector_impl()):
 664         Likewise.
 665         * include/bits/stl_list.h (_List_impl::_List_impl()): Likewise.
 666         * include/bits/stl_vector.h (_Vector_impl::_Vector_impl()): Likewise.
 667         * testsuite/23_containers/forward_list/cons/87809.cc: New test.
 668         * testsuite/23_containers/list/cons/87809.cc: New test.
 669         * testsuite/23_containers/vector/bool/cons/87809.cc: New test.
 670         * testsuite/23_containers/vector/cons/87809.cc: New test.
 671
 672         PR libstdc++/87784
 673         * include/tr2/dynamic_bitset (dynamic_bitset::push_back): When there
 674         are no unused bits in the last block, append a new block with the
 675         right value so the bit doesn't need to be set. Only increment size
 676         after setting the new bit, not before.
 677         * testsuite/tr2/dynamic_bitset/pr87784.cc: New test.
 678
 679 2018-10-29  David Malcolm  <dmalcolm@redhat.com>
 680
 681         * testsuite/17_intro/using_namespace_std_exp_neg.cc: Remove
 682         "expected namespace-name before" error.
 683         * testsuite/17_intro/using_namespace_std_tr1_neg.cc: Likewise.
 684
 685 2018-10-28  François Dumont  <fdumont@gcc.gnu.org>
 686
 687         * testsuite/23_containers/deque/48101_neg.cc: Remove dg-prune-output
 688         'std' from regex pattern for versioned namespace compatibility.
 689         * testsuite/23_containers/vector/48101_neg.cc: Likewise.
 690         * testsuite/27_io/filesystem/path/io/dr2989.cc: Likewise.
 691
 692 2018-10-25  Jonathan Wakely  <jwakely@redhat.com>
 693
 694         PR libstdc++/87749
 695         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
 696         (basic_string::operator=(basic_string&&)): For short strings copy the
 697         buffer inline. Only fall back to using assign(const basic_string&) to
 698         do a deep copy when reallocation is needed.
 699         * testsuite/21_strings/basic_string/modifiers/assign/char/87749.cc:
 700         New test.
 701         * testsuite/21_strings/basic_string/modifiers/assign/char/
 702         move_assign_optim.cc: New test.
 703         * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/87749.cc:
 704         New test.
 705         * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
 706         move_assign_optim.cc: New test.
 707
 708 2018-10-25  Marc Glisse  <marc.glisse@inria.fr>
 709
 710         PR libstdc++/87106
 711         * include/bits/alloc_traits.h (_S_construct, _S_destroy, construct,
 712         destroy): Add noexcept specification.
 713         * include/bits/allocator.h (construct, destroy): Likewise.
 714         * include/ext/alloc_traits.h (construct, destroy): Likewise.
 715         * include/ext/malloc_allocator.h (construct, destroy): Likewise.
 716         * include/ext/new_allocator.h (construct, destroy): Likewise.
 717         * include/bits/stl_uninitialized.h (__relocate_object_a, __relocate_a,
 718         __relocate_a_1): New functions.
 719         (__is_trivially_relocatable): New class.
 720         * include/bits/stl_vector.h (__use_relocate): New static member.
 721         * include/bits/vector.tcc (reserve, _M_realloc_insert,
 722         _M_default_append): Use __relocate_a.
 723         (reserve, _M_assign_aux, _M_realloc_insert, _M_fill_insert,
 724         _M_default_append, _M_range_insert): Move _GLIBCXX_ASAN_ANNOTATE_REINIT
 725         after _Destroy.
 726         * testsuite/23_containers/vector/modifiers/push_back/49836.cc:
 727         Replace CopyConsOnlyType with DelAnyAssign.
 728
 729 2018-10-24  François Dumont  <fdumont@gcc.gnu.org>
 730
 731         * include/debug/safe_unordered_container.h
 732         (_Safe_unordered_container<>::_M_invalidate_locals): Take lambda
 733         parameter type from local end variable.
 734         (_Safe_unordered_container<>::_M_invalidate_all): Likewise.
 735         * include/debug/unordered_map
 736         (unordered_map<>::begin()): Use C++11 direct initialization.
 737         (unordered_map<>::end()): Likewise.
 738         (unordered_map<>::cbegin()): Likewise.
 739         (unordered_map<>::cend()): Likewise.
 740         (unordered_map<>::begin(size_type)): Likewise.
 741         (unordered_map<>::end(size_type)): Likewise.
 742         (unordered_map<>::cbegin(size_type)): Likewise.
 743         (unordered_map<>::cend(size_type)): Likewise.
 744         (unordered_map<>::emplace<>(_Args&&...)): Likewise.
 745         (unordered_map<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
 746         (unordered_map<>::insert(const value_type&)): Likewise.
 747         (unordered_map<>::insert(value_type&&)): Likewise.
 748         (unordered_map<>::insert<>(_Pair&&)): Likewise.
 749         (unordered_map<>::insert(const_iterator, const value_type&)): Likewise.
 750         (unordered_map<>::insert(const_iterator, value_type&&)): Likewise.
 751         (unordered_map<>::insert<>(const_iterator, _Pair&&)): Likewise.
 752         (unordered_map<>::try_emplace<>(const key_type&, _Args&&...)): Likewise.
 753         (unordered_map<>::try_emplace<>(key_type&&, _Args&&...)): Likewise.
 754         (unordered_map<>::try_emplace<>(const_iterator, const key_type&,
 755         _Args&&...)): Likewise.
 756         (unordered_map<>::try_emplace<>(const_iterator, key_type&&,
 757         _Args&&...)): Likewise.
 758         (unordered_map<>::insert_or_assign<>(const key_type&, _Obj&&)): Likewise.
 759         (unordered_map<>::insert_or_assign<>(key_type&&, _Obj&&)): Likewise.
 760         (unordered_map<>::insert_or_assign<>(const_iterator, const key_type&,
 761         _Obj&&)): Likewise.
 762         (unordered_map<>::insert_or_assign<>(const_iterator, key_type&&,
 763         _Obj&&)): Likewise.
 764         (unordered_map<>::insert(note_type&&)): Likewise.
 765         (unordered_map<>::find(const key_type&)): Likewise.
 766         (unordered_map<>::equal_range(const key_type&)): Likewise.
 767         (unordered_map<>::_M_extract): New.
 768         (unordered_map<>::extract(const_iterator)): Use latter.
 769         (unordered_map<>::extract(const key_type&)): Likewise.
 770         (unordered_map<>::_M_erase): New.
 771         (unordered_map<>::erase(const key_type&)): Use latter.
 772         (unordered_map<>::erase(const_iterator)): Likewise.
 773         (unordered_map<>::erase(iterator)): Likewise.
 774         (unordered_map<>::_M_invalidate): New.
 775         (unordered_map<>::erase(const_iterator, const_iterator)): Use latter.
 776         (unordered_multimap<>::begin()): Use C++11 direct initialization.
 777         (unordered_multimap<>::end()): Likewise.
 778         (unordered_multimap<>::cbegin()): Likewise.
 779         (unordered_multimap<>::cend()): Likewise.
 780         (unordered_multimap<>::begin(size_type)): Likewise.
 781         (unordered_multimap<>::end(size_type)): Likewise.
 782         (unordered_multimap<>::cbegin(size_type)): Likewise.
 783         (unordered_multimap<>::cend(size_type)): Likewise.
 784         (unordered_multimap<>::emplace<>(_Args&&...)): Likewise.
 785         (unordered_multimap<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
 786         (unordered_multimap<>::insert(const value_type&)): Likewise.
 787         (unordered_multimap<>::insert(const_iterator, const value_type&)): Likewise.
 788         (unordered_multimap<>::insert(const_iterator, value_type&&)): Likewise.
 789         (unordered_multimap<>::insert<>(_Pair&&)): Likewise.
 790         (unordered_multimap<>::insert<>(const_iterator, _Pair&&)): Likewise.
 791         (unordered_multimap<>::insert(note_type&&)): Likewise.
 792         (unordered_multimap<>::insert(const_iterator, note_type&&)): Likewise.
 793         (unordered_multimap<>::find(const key_type&)): Likewise.
 794         (unordered_multimap<>::equal_range(const key_type&)): Likewise.
 795         (unordered_multimap<>::_M_extract): New.
 796         (unordered_multimap<>::extract(const_iterator)): Use latter.
 797         (unordered_multimap<>::extract(const key_type&)): Likewise.
 798         (unordered_multimap<>::_M_erase): New.
 799         (unordered_multimap<>::erase(const_iterator)): Likewise.
 800         (unordered_multimap<>::erase(iterator)): Likewise.
 801         (unordered_multimap<>::_M_invalidate): New.
 802         (unordered_multimap<>::erase(const key_type&)): Use latter.
 803         (unordered_multimap<>::erase(const_iterator, const_iterator)): Likewise.
 804         * include/debug/unordered_set
 805         (unordered_set<>::begin()): Use C++11 direct initialization.
 806         (unordered_set<>::end()): Likewise.
 807         (unordered_set<>::cbegin()): Likewise.
 808         (unordered_set<>::cend()): Likewise.
 809         (unordered_set<>::begin(size_type)): Likewise.
 810         (unordered_set<>::end(size_type)): Likewise.
 811         (unordered_set<>::cbegin(size_type)): Likewise.
 812         (unordered_set<>::cend(size_type)): Likewise.
 813         (unordered_set<>::emplace<>(_Args&&...)): Likewise.
 814         (unordered_set<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
 815         (unordered_set<>::insert(const value_type&)): Likewise.
 816         (unordered_set<>::insert(value_type&&)): Likewise.
 817         (unordered_set<>::insert(const_iterator, const value_type&)): Likewise.
 818         (unordered_set<>::insert(const_iterator, value_type&&)): Likewise.
 819         (unordered_set<>::insert(note_type&&)): Likewise.
 820         (unordered_set<>::insert(const_iterator, note_type&&)): Likewise.
 821         (unordered_set<>::find(const key_type&)): Likewise.
 822         (unordered_set<>::equal_range(const key_type&)): Likewise.
 823         (unordered_set<>::_M_extract): New.
 824         (unordered_set<>::extract(const_iterator)): Use latter.
 825         (unordered_set<>::extract(const key_type&)): Likewise.
 826         (unordered_set<>::_M_erase): New.
 827         (unordered_set<>::erase(const key_type&)): Use latter.
 828         (unordered_set<>::erase(const_iterator)): Likewise.
 829         (unordered_set<>::erase(iterator)): Likewise.
 830         (unordered_set<>::_M_invalidate): New.
 831         (unordered_set<>::erase(const_iterator, const_iterator)): Use latter.
 832         (unordered_multiset<>::begin()): Use C++11 direct initialization.
 833         (unordered_multiset<>::end()): Likewise.
 834         (unordered_multiset<>::cbegin()): Likewise.
 835         (unordered_multiset<>::cend()): Likewise.
 836         (unordered_multiset<>::begin(size_type)): Likewise.
 837         (unordered_multiset<>::end(size_type)): Likewise.
 838         (unordered_multiset<>::cbegin(size_type)): Likewise.
 839         (unordered_multiset<>::cend(size_type)): Likewise.
 840         (unordered_multiset<>::emplace<>(_Args&&...)): Likewise.
 841         (unordered_multiset<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
 842         (unordered_multiset<>::insert(const value_type&)): Likewise.
 843         (unordered_multiset<>::insert(const_iterator, const value_type&)): Likewise.
 844         (unordered_multiset<>::insert(value_type&&)): Likewise.
 845         (unordered_multiset<>::insert(const_iterator, value_type&&)): Likewise.
 846         (unordered_multiset<>::insert(node_type&&)): Likewise.
 847         (unordered_multiset<>::insert(const_iterator, node_type&&)): Likewise.
 848         (unordered_multiset<>::find(const key_type&)): Likewise.
 849         (unordered_multiset<>::equal_range(const key_type&)): Likewise.
 850         (unordered_multiset<>::_M_extract): New.
 851         (unordered_multiset<>::extract(const_iterator)): Use latter.
 852         (unordered_multiset<>::extract(const key_type&)): Likewise.
 853         (unordered_multiset<>::_M_erase): New.
 854         (unordered_multiset<>::erase(const_iterator)): Likewise.
 855         (unordered_multiset<>::erase(iterator)): Likewise.
 856         (unordered_multiset<>::_M_invalidate): New.
 857         (unordered_multiset<>::erase(const key_type&)): Use latter.
 858         (unordered_multiset<>::erase(const_iterator, const_iterator)): Likewise.
 859
 860         * include/c_global/cstddef: Add versioned namespace.
 861
 862 2018-10-23  Jonathan Wakely  <jwakely@redhat.com>
 863
 864         PR libstdc++/87704
 865         * include/bits/unique_ptr.h (unique_ptr::unique_ptr(nullptr_t)): Do
 866         not delegate to default constructor.
 867         (unique_ptr<T[], D>::unique_ptr(nullptr_t)): Likewise.
 868         * testsuite/20_util/unique_ptr/cons/incomplete.cc: New test.
 869
 870 2018-10-20  François Dumont  <fdumont@gcc.gnu.org>
 871
 872         * testsuite/util/testsuite_containers.h
 873         (forward_members_unordered<>::forward_members_unordered
 874         (const value_type&)): Add local_iterator pre and post increment checks.
 875         * config/abi/pre/gnu.ver: Add GLIBCXX_3.4.26 new symbol.
 876
 877 2018-10-19  Jonathan Wakely  <jwakely@redhat.com>
 878
 879         * testsuite/23_containers/array/requirements/explicit_instantiation/
 880         3.cc: Skip test when compiled with a -std=c++NN strict mode.
 881         * testsuite/23_containers/deque/requirements/explicit_instantiation/
 882         3.cc: Likewise.
 883         * testsuite/23_containers/forward_list/requirements/
 884         explicit_instantiation/3.cc: Likewise.
 885         * testsuite/23_containers/list/requirements/explicit_instantiation/
 886         3.cc: Likewise.
 887         * testsuite/23_containers/map/requirements/explicit_instantiation/
 888         3.cc: Likewise.
 889         * testsuite/23_containers/multimap/requirements/explicit_instantiation/
 890         3.cc: Likewise.
 891         * testsuite/23_containers/multiset/requirements/explicit_instantiation/
 892         3.cc: Likewise.
 893         * testsuite/23_containers/set/requirements/explicit_instantiation/
 894         3.cc: Likewise.
 895         * testsuite/23_containers/unordered_map/requirements/
 896         explicit_instantiation/3.cc: Likewise.
 897         * testsuite/23_containers/unordered_multimap/requirements/
 898         explicit_instantiation/3.cc: Likewise.
 899         * testsuite/23_containers/unordered_multiset/requirements/
 900         explicit_instantiation/3.cc: Likewise.
 901         * testsuite/23_containers/unordered_set/requirements/
 902         explicit_instantiation/3.cc: Likewise.
 903         * testsuite/23_containers/vector/ext_pointer/explicit_instantiation/
 904         3.cc: Likewise.
 905         * testsuite/23_containers/vector/requirements/explicit_instantiation/
 906         3.cc: Likewise.
 907
 908         * testsuite/23_containers/deque/48101_neg.cc: Prune additional errors
 909         printed when __STRICT_ANSI__ is defined.
 910         * testsuite/23_containers/forward_list/48101_neg.cc: Likewise.
 911         * testsuite/23_containers/list/48101_neg.cc: Likewise.
 912         * testsuite/23_containers/multiset/48101_neg.cc: Likewise.
 913         * testsuite/23_containers/set/48101_neg.cc: Likewise.
 914         * testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise.
 915         * testsuite/23_containers/unordered_set/48101_neg.cc: Likewise.
 916         * testsuite/23_containers/vector/48101_neg.cc: Likewise.
 917
 918         * testsuite/23_containers/forward_list/requirements/
 919         explicit_instantiation/5.cc [__STRICT_ANSI__]: Don't test non-standard
 920         extension.
 921         * testsuite/23_containers/list/requirements/explicit_instantiation/
 922         5.cc [__STRICT_ANSI__]: Likewise.
 923         * testsuite/23_containers/map/requirements/explicit_instantiation/5.cc
 924         [__STRICT_ANSI__]: Likewise.
 925         * testsuite/23_containers/multimap/requirements/explicit_instantiation/
 926         5.cc [__STRICT_ANSI__]: Likewise.
 927         * testsuite/23_containers/multiset/requirements/explicit_instantiation/
 928         5.cc [__STRICT_ANSI__]: Likewise.
 929         * testsuite/23_containers/set/requirements/explicit_instantiation/5.cc
 930         [__STRICT_ANSI__]: Likewise.
 931         * testsuite/23_containers/unordered_map/requirements/debug_container.cc
 932         [__STRICT_ANSI__]: Likewise.
 933         * testsuite/23_containers/unordered_map/requirements/
 934         explicit_instantiation/5.cc [__STRICT_ANSI__]: Likewise.
 935         * testsuite/23_containers/unordered_multimap/requirements/
 936         explicit_instantiation/5.cc [__STRICT_ANSI__]: Likewise.
 937         * testsuite/23_containers/unordered_multiset/requirements/
 938         explicit_instantiation/5.cc [__STRICT_ANSI__]: Likewise.
 939         * testsuite/23_containers/unordered_set/requirements/
 940         explicit_instantiation/5.cc [__STRICT_ANSI__]: Likewise.
 941
 942         * testsuite/20_util/scoped_allocator/1.cc: Use allocator with correct
 943         value type for the container.
 944         * testsuite/23_containers/forward_list/cons/14.cc: Likewise.
 945         * testsuite/23_containers/map/56613.cc: Likewise.
 946         * testsuite/23_containers/unordered_map/55043.cc: Likewise.
 947         * testsuite/23_containers/unordered_map/allocator/copy.cc: Likewise.
 948         * testsuite/23_containers/unordered_map/allocator/copy_assign.cc:
 949         Likewise.
 950         * testsuite/23_containers/unordered_map/allocator/minimal.cc:
 951         Likewise.
 952         * testsuite/23_containers/unordered_map/allocator/move.cc: Likewise.
 953         * testsuite/23_containers/unordered_map/allocator/move_assign.cc:
 954         Likewise.
 955         * testsuite/23_containers/unordered_map/allocator/noexcept.cc:
 956         Likewise.
 957         * testsuite/23_containers/unordered_map/cons/81891.cc: Likewise.
 958         * testsuite/23_containers/unordered_map/requirements/exception/
 959         basic.cc: Likewise.
 960         * testsuite/23_containers/unordered_map/requirements/exception/
 961         generation_prohibited.cc: Likewise.
 962         * testsuite/23_containers/unordered_map/requirements/exception/
 963         propagation_consistent.cc: Likewise.
 964         * testsuite/23_containers/unordered_multimap/55043.cc: Likewise.
 965         * testsuite/23_containers/unordered_multimap/allocator/copy.cc:
 966         Likewise.
 967         * testsuite/23_containers/unordered_multimap/allocator/copy_assign.cc:
 968         Likewise.
 969         * testsuite/23_containers/unordered_multimap/allocator/minimal.cc:
 970         Likewise.
 971         * testsuite/23_containers/unordered_multimap/allocator/move.cc:
 972         Likewise.
 973         * testsuite/23_containers/unordered_multimap/allocator/move_assign.cc:
 974         Likewise.
 975         * testsuite/23_containers/unordered_multimap/allocator/noexcept.cc:
 976         Likewise.
 977         * testsuite/23_containers/unordered_multimap/requirements/exception/
 978         basic.cc: Likewise.
 979         * testsuite/23_containers/unordered_multimap/requirements/exception/
 980         generation_prohibited.cc: Likewise.
 981         * testsuite/23_containers/unordered_multimap/requirements/exception/
 982         propagation_consistent.cc: Likewise.
 983         * testsuite/23_containers/unordered_multimap/requirements/
 984         explicit_instantiation/5.cc: Likewise.
 985         * testsuite/ext/malloc_allocator/sanity.cc: Likewise.
 986
 987         * ext/special_functions/airy_ai/check_nan.cc: Skip test for
 988         non-standard extension when a strict -std=c++NN dialect is used.
 989         * ext/special_functions/airy_ai/check_value.cc: Likewise.
 990         * ext/special_functions/airy_ai/compile.cc: Likewise.
 991         * ext/special_functions/airy_bi/check_nan.cc: Likewise.
 992         * ext/special_functions/airy_bi/check_value.cc: Likewise.
 993         * ext/special_functions/airy_bi/compile.cc: Likewise.
 994         * ext/special_functions/conf_hyperg/check_nan.cc: Likewise.
 995         * ext/special_functions/conf_hyperg/check_value.cc: Likewise.
 996         * ext/special_functions/conf_hyperg/compile.cc: Likewise.
 997         * ext/special_functions/hyperg/check_nan.cc: Likewise.
 998         * ext/special_functions/hyperg/check_value.cc: Likewise.
 999         * ext/special_functions/hyperg/compile.cc: Likewise.
1000
1001         * testsuite/23_containers/list/requirements/explicit_instantiation/
1002         5_c++0x.cc: Remove redundant test that is functionally identical to
1003         the 5.cc test.
1004         * testsuite/23_containers/map/requirements/explicit_instantiation/
1005         5_c++0x.cc: Likewise.
1006         * testsuite/23_containers/multimap/requirements/explicit_instantiation/
1007         5_c++0x.cc: Likewise.
1008         * testsuite/23_containers/multiset/requirements/explicit_instantiation/
1009         5_c++0x.cc: Likewise.
1010         * testsuite/23_containers/set/requirements/explicit_instantiation/
1011         5_c++0x.cc: Likewise.
1012
1013         * include/bits/regex_executor.tcc (_Backref_matcher::_M_apply): Use
1014         _GLIBCXX_STD_A to refer to normal mode algorithms.
1015         * testsuite/28_regex/headers/regex/parallel_mode.cc: New test.
1016         * testsuite/28_regex/headers/regex/std_c++0x_neg.cc: Remove empty
1017         whitespace.
1018
1019         * include/debug/map.h (map::erase(iterator)): Add abi-tag so that
1020         C++11 version mangles differently from incompatible C++98 version.
1021         * include/debug/multimap.h (multimap::erase(iterator)): Likewise.
1022         * include/debug/multiset.h (multiset::erase(iterator))
1023         (multiset::erase(const_iterator, const_iterator)): Likewise.
1024         * include/debug/set.h (set::erase(iterator))
1025         (multiset::erase(const_iterator, const_iterator)): Likewise.
1026
1027 2018-10-18  Jonathan Wakely  <jwakely@redhat.com>
1028
1029         * testsuite/20_util/duration/cons/2.cc: Add -ffloat-store to fix
1030         failure when compiled without optimisation.
1031         * testsuite/ext/profile/mutex_extensions_neg.cc: Prune additional
1032         errors caused by C++17 std::pmr alias templates.
1033
1034         PR libstdc++/87642
1035         * config/locale/gnu/monetary_members.cc
1036         (moneypunct<char, true>::_M_initialize_moneypunct): Use
1037         __narrow_multibyte_chars to convert multibyte thousands separators
1038         to a single char.
1039         * config/locale/gnu/numeric_members.cc
1040         (numpunct<char>::_M_initialize_numpunct): Likewise.
1041         (__narrow_multibyte_chars): New function.
1042
1043         PR libstdc++/87641
1044         * include/bits/valarray_array.h (__valarray_sum): Use first element
1045         to initialize accumulator instead of value-initializing it.
1046         (__valarray_product<_Tp>): Move to ...
1047         * src/c++98/valarray.cc (__valarray_product<_Tp>): Here. Use first
1048         element to initialize accumulator.
1049         (__valarray_product(const valarray<size_t>&)): Remove const_cast made
1050         unnecessary by LWG 389.
1051         * testsuite/26_numerics/valarray/87641.cc: New test.
1052
1053 2018-10-18  François Dumont  <fdumont@gcc.gnu.org>
1054
1055         Partial revert.
1056         2018-10-08  François Dumont  <fdumont@gcc.gnu.org>
1057
1058         * include/debug/list (list<>::cbegin()): Use C++11 direct
1059         initialization.
1060         (list<>::cend()): Likewise.
1061         (list<>::erase(const_iterator, const_iterator)): Ensure consistent
1062         iterator comparisons.
1063         (list<>::splice(const_iterator, list&&, const_iterator,
1064         const_iterator)): Likewise.
1065
1066         Partial revert.
1067         2018-10-15  François Dumont  <fdumont@gcc.gnu.org>
1068
1069         * include/debug/vector (vector<>::cbegin()): Use C++11 direct
1070         initialization.
1071         (vector<>::cend()): Likewise.
1072         (vector<>::insert(const_iterator, const _Tp&)): Use consistent
1073         iterator comparison.
1074         (vector<>::erase(const_iterator)): Likewise.
1075         (vector<>::erase(const_iterator, const_iterator)): Likewise.
1076
1077 2018-10-17  Ville Voutilainen  <ville.voutilainen@gmail.com>
1078
1079         PR libstdc++/87619
1080         * include/std/variant (__select_index): Fix an off-by-one.
1081         * testsuite/20_util/variant/87619.cc: New.
1082
1083 2018-10-16  Jonathan Wakely  <jwakely@redhat.com>
1084
1085         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
1086         Fix default constructor to call correct function.
1087
1088         * testsuite/experimental/net/internet/address/v4/creation.cc: Do not
1089         declare ip in global namespace, to avoid collision with struct ip
1090         defined in <netinet/ip.h>.
1091
1092         * include/experimental/bits/net.h: Move versioned namespace macros
1093         to correct location.
1094         * include/experimental/buffer: Likewise.
1095         * include/experimental/executor: Likewise.
1096         * include/experimental/internet: Likewise.
1097         * include/experimental/io_context: Likewise.
1098         * include/experimental/netfwd: Likewise.
1099         * include/experimental/socket: Likewise.
1100         * include/experimental/timer: Likewise.
1101
1102         * config.h.in: Regenerate.
1103         * configure: Regenerate.
1104         * configure.ac: Check for headers used by Networking TS.
1105         * include/experimental/executor: Include <condition_variable>
1106         instead of <mutex>.
1107         * include/experimental/internet: Use autoconf macros for available
1108         headers.  Include <sys/socket.h> for.  Remove <cstring> and use
1109         __builtin_memcpy and __builtin_strchr.
1110         (resolver_errc) [!_GLIBCXX_HAVE_NETDB_H]: Do not define.
1111         (address_v4::to_string, address_v6::to_string)
1112         [!_GLIBCXX_HAVE_ARPA_INET_H]: Likewise.
1113         (basic_resolver_results) [!_GLIBCXX_HAVE_NETDB_H]: Make private
1114         constructors report errors.
1115         [!_GLIBCXX_HAVE_NETINET_TCP_H] (tcp::no_delay): Do not define.
1116         * include/experimental/io_context: Likewise.
1117         * include/experimental/socket: Likewise.
1118         [!_GLIBCXX_HAVE_SYS_SOCKET_H, !_GLIBCXX_HAVE_POLL_H] (socket_base): Do
1119         not define nested types when relevant header not available.
1120         (__socket_impl::native_non_blocking) [!_GLIBCXX_HAVE_FCNTL_H]: Report
1121         an error.
1122         (__basic_socket_impl::open, __basic_socket_impl::local_endpoint)
1123         (__basic_socket_impl::bind) [!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
1124         (__basic_socket_impl::io_control) [!_GLIBCXX_HAVE_SYS_IOCTL_H]:
1125         Likewise.
1126         (basic_socket::at_mark, basic_socket::shutdown)
1127         (basic_socket::remote_endpoint, basic_socket::connect)
1128         (basic_socket::async_connect) [!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
1129         (basic_socket::available) [_GLIBCXX_HAVE_SYS_IOCTL_H]: Check macro
1130         for <sys/ioctl.h> availability.
1131         (basic_socket::wait) [!_GLIBCXX_HAVE_POLL_H]: Likewise.
1132         (basic_datagram_socket::receive, basic_datagram_socket::async_receive)
1133         (basic_datagram_socket::receive_from)
1134         (basic_datagram_socket::async_receive_from)
1135         (basic_datagram_socket::send, basic_datagram_socket::async_send)
1136         (basic_datagram_socket::send_to, basic_datagram_socket::async_send_to)
1137         [!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
1138         (basic_stream_socket::receive, basic_stream_socket::async_receive)
1139         (basic_stream_socket::send, basic_stream_socket::async_send)
1140         [!_GLIBCXX_HAVE_SYS_SOCKET_H]: Likewise.
1141         (basic_socket_acceptor::listen, basic_socket_acceptor::accept)
1142         (basic_socket_acceptor::async_accept) [!_GLIBCXX_HAVE_SYS_SOCKET_H]:
1143         Likewise.
1144         (basic_socket_acceptor::wait) [!_GLIBCXX_HAVE_POLL_H]: Likewise.
1145
1146         * testsuite/experimental/net/headers.cc: Remove dg-options.
1147         * testsuite/experimental/net/buffer/arithmetic.cc: Replace dg-options
1148         with dg-do using effective target.
1149         * testsuite/experimental/net/buffer/const.cc: Likewise.
1150         * testsuite/experimental/net/buffer/creation.cc: Likewise.
1151         * testsuite/experimental/net/buffer/mutable.cc: Likewise.
1152         * testsuite/experimental/net/buffer/size.cc: Likewise.
1153         * testsuite/experimental/net/buffer/traits.cc: Likewise.
1154         * testsuite/experimental/net/execution_context/use_service.cc:
1155         Likewise.
1156         * testsuite/experimental/net/internet/address/v4/comparisons.cc:
1157         Likewise.
1158         * testsuite/experimental/net/internet/address/v4/cons.cc: Likewise.
1159         * testsuite/experimental/net/internet/address/v4/creation.cc:
1160         Likewise.
1161         * testsuite/experimental/net/internet/address/v4/members.cc: Likewise.
1162         * testsuite/experimental/net/internet/resolver/base.cc: Likewise.
1163         * testsuite/experimental/net/internet/resolver/ops/lookup.cc:
1164         Likewise.
1165         * testsuite/experimental/net/internet/resolver/ops/reverse.cc:
1166         Likewise.
1167         * testsuite/experimental/net/timer/waitable/cons.cc: Likewise.
1168         * testsuite/experimental/net/timer/waitable/dest.cc: Likewise.
1169         * testsuite/experimental/net/timer/waitable/ops.cc: Likewise.
1170
1171         * include/experimental/socket (basic_socket::at_mark): Add missing
1172         return.
1173
1174         * acinclude.m4 (GLIBCXX_CHECK_RANDOM_TR1): Replace with ...
1175         (GLIBCXX_CHECK_DEV_RANDOM): New macro with more descriptive name.
1176         Define _GLIBCXX_USE_DEV_RANDOM as well as _GLIBCXX_USE_RANDOM_TR1.
1177         * config.h.in: Regenerate.
1178         * configure: Regenerate.
1179         * configure.ac: Use GLIBCXX_CHECK_DEV_RANDOM instead of
1180         GLIBCXX_CHECK_RANDOM_TR1.
1181         crossconfig.m4: Likewise.
1182         * include/bits/random.h (random_device): Use _GLIBCXX_USE_DEV_RANDOM
1183         instead of _GLIBCXX_USE_RANDOM_TR1.
1184         * testsuite/26_numerics/random/random_device/cons/token.cc: Likewise.
1185
1186 2018-10-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1187
1188         * testsuite/lib/dg-options.exp (add_options_for_net_ts): New proc.
1189         * testsuite/experimental/net/internet/address/v4/comparisons.cc:
1190         Add dg-add-options net_ts.
1191         * testsuite/experimental/net/internet/address/v4/cons.cc: Likewise.
1192         * testsuite/experimental/net/internet/address/v4/creation.cc: Likewise.
1193         * testsuite/experimental/net/internet/address/v4/members.cc: Likewise.
1194         * testsuite/experimental/net/internet/resolver/base.cc: Likewise.
1195         * testsuite/experimental/net/internet/resolver/ops/lookup.cc: Likewise.
1196         * testsuite/experimental/net/internet/resolver/ops/reverse.cc: Likewise.
1197
1198 2018-10-16  Jonathan Wakely  <jwakely@redhat.com>
1199
1200         * testsuite/20_util/duration/literals/range_neg.cc: Adjust pruned
1201         diagnostic to account for quotes around 'constexpr'.
1202         * testsuite/23_containers/deque/capacity/max_size.cc: Define static
1203         variable.
1204         * testsuite/23_containers/vector/capacity/max_size.cc: Likewise.
1205
1206         PR libstdc++/87618
1207         * config/abi/pre/gnu.ver: Fix typos in patterns for basic_stringbuf.
1208         * testsuite/27_io/basic_stringbuf/cons/char/default.cc: Disable
1209         optimisation to check constructor definition can be linked to.
1210         * testsuite/27_io/basic_stringbuf/cons/wchar_t/default.cc: Likewise.
1211
1212 2018-10-15  Jonathan Wakely  <jwakely@redhat.com>
1213
1214         * testsuite/22_locale/numpunct/members/char/3.cc: Adjust test to
1215         account for change to glibc it_IT localedata (glibc bz#10797).
1216
1217         PR libstdc++/87587
1218         * src/c++11/cxx11-shim_facets.cc: Suppress -Wabi warnings.
1219
1220 2018-10-15  François Dumont  <fdumont@gcc.gnu.org>
1221
1222         * include/debug/vector (vector<>::cbegin()): Use C++11 direct
1223         initialization.
1224         (vector<>::cend()): Likewise.
1225         (vector<>::emplace(const_iterator, _Args&&...)): Likewise and use
1226         consistent iterator comparison.
1227         (vector<>::insert(const_iterator, size_type, const _Tp&)): Likewise.
1228         (vector<>::insert(const_iterator, _InputIterator, _InputIterator)):
1229         Likewise.
1230         (vector<>::erase(const_iterator)): Likewise.
1231         (vector<>::erase(const_iterator, const_iterator)): Likewise.
1232
1233 2018-10-12  Jonathan Wakely  <jwakely@redhat.com>
1234
1235         Initial commit of Networking TS implementation.
1236         * include/Makefile.am: Add new headers.
1237         * include/Makefile.in: Regenerate.
1238         * include/experimental/bits/net.h: New header for common
1239         implementation details of Networking TS.
1240         * include/experimental/buffer: New header.
1241         * include/experimental/executor: New header.
1242         * include/experimental/internet: New header.
1243         * include/experimental/io_context: New header.
1244         * include/experimental/net: New header.
1245         * include/experimental/netfwd: New header.
1246         * include/experimental/socket: New header.
1247         * include/experimental/timer: New header.
1248         * testsuite/experimental/net/buffer/arithmetic.cc: New test.
1249         * testsuite/experimental/net/buffer/const.cc: New test.
1250         * testsuite/experimental/net/buffer/creation.cc: New test.
1251         * testsuite/experimental/net/buffer/mutable.cc: New test.
1252         * testsuite/experimental/net/buffer/size.cc: New test.
1253         * testsuite/experimental/net/buffer/traits.cc: New test.
1254         * testsuite/experimental/net/execution_context/use_service.cc: New
1255         test.
1256         * testsuite/experimental/net/headers.cc: New test.
1257         * testsuite/experimental/net/internet/address/v4/comparisons.cc: New
1258         test.
1259         * testsuite/experimental/net/internet/address/v4/cons.cc: New test.
1260         * testsuite/experimental/net/internet/address/v4/creation.cc: New
1261         test.
1262         * testsuite/experimental/net/internet/address/v4/members.cc: New
1263         test.
1264         * testsuite/experimental/net/internet/resolver/base.cc: New test.
1265         * testsuite/experimental/net/internet/resolver/ops/lookup.cc: New
1266         test.
1267         * testsuite/experimental/net/internet/resolver/ops/reverse.cc: New
1268         test.
1269         * testsuite/experimental/net/timer/waitable/cons.cc: New test.
1270         * testsuite/experimental/net/timer/waitable/dest.cc: New test.
1271         * testsuite/experimental/net/timer/waitable/ops.cc: New test.
1272
1273         PR libstdc++/77691
1274         * include/experimental/memory_resource (__resource_adaptor_imp): Do
1275         not allocate sizes smaller than alignment when relying on guaranteed
1276         alignment.
1277         * testsuite/experimental/memory_resource/new_delete_resource.cc:
1278         Adjust expected number of bytes allocated for alignof(max_align_t).
1279
1280 2018-10-11  François Dumont  <fdumont@gcc.gnu.org>
1281
1282         * include/debug/forward_list
1283         (forward_list<>::before_begin()): Use C++11 direct initialization.
1284         (forward_list<>::begin()): Likewise.
1285         (forward_list<>::end()): Likewise.
1286         (forward_list<>::cbefore_begin()): Likewise.
1287         (forward_list<>::cbegin()): Likewise.
1288         (forward_list<>::cend()): Likewise.
1289         (forward_list<>::emplace_after<>(const_iterator, _Args&&...)): Likewise.
1290         (forward_list<>::insert_after(const_iterator, const _Tp&)): Likewise.
1291         (forward_list<>::insert_after(const_iterator, _Tp&&)): Likewise.
1292         (forward_list<>::insert_after(const_iterator, size_type, const _Tp&)):
1293         Likewise.
1294         (forward_list<>::insert_after(const_iterator, initializer_list<>)):
1295         Likewise.
1296         (forward_list<>::erase_after(const_iterator)): Likewise.
1297         (forward_list<>::erase_after(const_iterator, const_iterator)): Likewise
1298         and ensure consistent iterator comparison.
1299
1300         * include/bits/forward_list.h
1301         (_Fwd_list_iterator<>::operator==): Replace member function with inline
1302         friend.
1303         (_Fwd_list_iterator<>::operator!=): Likewise.
1304         (_Fwd_list_const_iterator<>::operator==): Likewise.
1305         (_Fwd_list_const_iterator<>::operator!=): Likewise.
1306         (operator==(const _Fwd_list_iterator<>&,
1307         const _Fwd_list_const_iterator<>&)): Remove.
1308         (operator!=(const _Fwd_list_iterator<>&,
1309         const _Fwd_list_const_iterator<>&)): Remove.
1310         (forward_list<>::_Node): Take typedef from base type.
1311         (forward_list<>::iterator): Likewise.
1312         (forward_list<>::const_iterator): Likewise.
1313
1314 2018-10-11  Jonathan Wakely  <jwakely@redhat.com>
1315
1316         PR libstdc++/80538
1317         * src/c++11/thread.cc (this_thread::__sleep_for)
1318         [_GLIBCXX_HAVE_SLEEP]: Only call sleep for non-zero values.
1319         Loop while sleep call is interrupted and until steady_clock
1320         shows requested duration has elapsed.
1321         (!_GLIBCXX_HAVE_USLEEP]: Use the _GLIBCXX_HAVE_SLEEP code path, but
1322         avoiding the usleep call.
1323         * testsuite/30_threads/this_thread/60421.cc: Test repeated
1324         signal interruptions.
1325
1326         * include/bits/allocator.h
1327         (operator==(const allocator<_Tp>&, const allocator<_Tp>))
1328         (operator!=(const allocator<_Tp>&, const allocator<_Tp>)): Replace
1329         with inline friends.
1330         * include/ext/debug_allocator.h (operator==, operator!=): Replace
1331         with inline friend functions that compare to rebound allocators.
1332         * include/ext/malloc_allocator.h (operator==, operator!=): Likewise.
1333         * include/ext/new_allocator.h (operator==, operator!=): Likewise.
1334         * testsuite/ext/debug_allocator/eq.cc: New test.
1335         * testsuite/ext/ext_pointer/alloc_eq.cc: New test.
1336         * testsuite/ext/malloc_allocator/eq.cc: New test.
1337         * testsuite/ext/new_allocator/eq.cc: New test.
1338
1339 2018-10-10  Jonathan Wakely  <jwakely@redhat.com>
1340
1341         PR libstdc++/87544
1342         * include/bits/stl_vector.h (vector::_S_max_size): Limit size to
1343         PTRDIFF_MAX / sizeof(value_type).
1344         * include/ext/malloc_allocator.h (malloc_allocator::max_size):
1345         Likewise.
1346         * include/ext/new_allocator.h (new_allocator::max_size): Likewise.
1347         * testsuite/23_containers/vector/allocator/minimal.cc: Adjust
1348         expected value for max_size().
1349         * testsuite/23_containers/vector/capacity/87544.cc: New test.
1350
1351 2018-10-09  François Dumont  <fdumont@gcc.gnu.org>
1352
1353         * include/bits/stl_list.h
1354         (_List_operator<>::operator==): Replace member function with inline
1355         friend.
1356         (_List_operator<>::operator!=): Likewise.
1357         (_List_const_operator<>::operator==): Likewise.
1358         (_List_const_operator<>::operator!=): Likewise.
1359         (operator==(const _List_iterator<>&, const _List_const_iterator<>&)):
1360         Remove.
1361         (operator!=(const _List_iterator<>&, const _List_const_iterator<>&)):
1362         Remove.
1363
1364 2018-10-09  Jonathan Wakely  <jwakely@redhat.com>
1365
1366         * include/bits/stringfwd.h (string, wstring, u16string, u32string):
1367         Define typedefs outside of __cxx11 inline namespace.
1368         * python/libstdcxx/v6/printers.py (register_type_printers): Also
1369         register printers for typedefs in new location.
1370
1371 2018-10-08  Jonathan Wakely  <jwakely@redhat.com>
1372
1373         PR libstdc++/87538
1374         * testsuite/experimental/functional/87538.cc: New test.
1375
1376         PR libstdc++/87538
1377         * include/std/functional (_Not_fn::operator()): Check value of
1378         __is_nothrow_invocable as well.
1379         * testsuite/20_util/function_objects/not_fn/87538.cc: New test.
1380
1381 2018-10-08  François Dumont  <fdumont@gcc.gnu.org>
1382
1383         * include/debug/list (list<>::cbegin()): Use C++11 direct
1384         initialization.
1385         (list<>::cend()): Likewise.
1386         (list<>::emplace<>(const_iterator, _Args&&...)): Likewise.
1387         (list<>::insert(const_iterator, initializer_list<>)): Likewise.
1388         (list<>::insert(const_iterator, size_type, const _Tp&)): Likewise.
1389         (list<>::erase(const_iterator, const_iterator)): Ensure consistent
1390         iterator comparisons.
1391         (list<>::splice(const_iterator, list&&, const_iterator,
1392         const_iterator)): Likewise.
1393
1394 2018-10-05  François Dumont  <fdumont@gcc.gnu.org>
1395
1396         * include/bits/stl_tree.h
1397         (_Rb_tree_iterator<>::operator==): Make inline friend.
1398         (_Rb_tree_iterator<>::operator!=): Likewise.
1399         (_Rb_tree_const_iterator<>::operator==): Likewise.
1400         (_Rb_tree_const_iterator<>::operator!=): Likewise.
1401         (operator==(const _Rb_tree_iterator<>&,
1402         const _Rb_tree_const_iterator&)): Remove.
1403         (operator!=(const _Rb_tree_iterator<>&,
1404         const _Rb_tree_const_iterator&)): Remove.
1405         (operator==(const _Rb_tree<>&, const _Rb_tree<>&)): Make inline friend.
1406         (operator<(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
1407         (operator!=(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise and
1408         deprecate.
1409         (operator>(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
1410         (operator<=(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
1411         (operator>=(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
1412         * include/debug/map.h (map<>::erase(const_iterator, const_iterator)):
1413         Compare __victim with _Base::cend().
1414         * include/debug/multimap.h
1415         (multimap<>::erase(const_iterator, const_iterator)): Likewise.
1416         * include/debug/set.h (set<>::erase(const_iterator, const_iterator)):
1417         Compare __victim with _Base::cend().
1418         * include/debug/multiset.h
1419         (multiset<>::erase(const_iterator, const_iterator)): Likewise.
1420
1421 2018-10-03  Jonathan Wakely  <jwakely@redhat.com>
1422
1423         PR libstdc++/59439
1424         * src/c++98/locale.cc (locale::locale(const locale&)): Bypass
1425         reference count updates for the classic locale.
1426         (locale::~locale()): Likewise.
1427         (locale::operator=(const locale&)): Likewise.
1428         * src/c++98/locale_init.cc (locale::locale()): Likewise.
1429         (locale::global(const locale&)): Likewise.
1430
1431 2018-10-03  François Dumont  <fdumont@gcc.gnu.org>
1432
1433         * include/debug/map.h
1434         (map<>::emplace<>(_Args&&...)): Use C++11 direct initialization.
1435         (map<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
1436         (map<>::insert(value_type&&)): Likewise.
1437         (map<>::insert<>(_Pair&&)): Likewise.
1438         (map<>::insert<>(const_iterator, _Pair&&)): Likewise.
1439         (map<>::try_emplace): Likewise.
1440         (map<>::insert_or_assign): Likewise.
1441         (map<>::insert(node_type&&)): Likewise.
1442         (map<>::insert(const_iterator, node_type&&)): Likewise.
1443         (map<>::erase(const_iterator)): Likewise.
1444         (map<>::erase(const_iterator, const_iterator)): Likewise.
1445         * include/debug/multimap.h
1446         (multimap<>::emplace<>(_Args&&...)): Use C++11 direct initialization.
1447         (multimap<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
1448         (multimap<>::insert<>(_Pair&&)): Likewise.
1449         (multimap<>::insert<>(const_iterator, _Pair&&)): Likewise.
1450         (multimap<>::insert(node_type&&)): Likewise.
1451         (multimap<>::insert(const_iterator, node_type&&)): Likewise.
1452         (multimap<>::erase(const_iterator)): Likewise.
1453         (multimap<>::erase(const_iterator, const_iterator)): Likewise.
1454         * include/debug/set.h
1455         (set<>::emplace<>(_Args&&...)): Use C++11 direct initialization.
1456         (set<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
1457         (set<>::insert(value_type&&)): Likewise.
1458         (set<>::insert<>(const_iterator, value_type&&)): Likewise.
1459         (set<>::insert(const_iterator, node_type&&)): Likewise.
1460         (set<>::erase(const_iterator)): Likewise.
1461         (set<>::erase(const_iterator, const_iterator)): Likewise.
1462         * include/debug/multiset.h
1463         (multiset<>::emplace<>(_Args&&...)): Use C++11 direct initialization.
1464         (multiset<>::emplace_hint<>(const_iterator, _Args&&...)): Likewise.
1465         (multiset<>::insert<>(value_type&&)): Likewise.
1466         (multiset<>::insert<>(const_iterator, value_type&&)): Likewise.
1467         (multiset<>::insert(node_type&&)): Likewise.
1468         (multiset<>::insert(const_iterator, node_type&&)): Likewise.
1469         (multiset<>::erase(const_iterator)): Likewise.
1470         (multiset<>::erase(const_iterator, const_iterator)): Likewise.
1471
1472 2018-10-02  Marc Glisse  <marc.glisse@inria.fr>
1473
1474         PR libstdc++/87258
1475         * include/bits/stl_bvector.h (vector::begin(), vector::cbegin()):
1476         Rebuild _M_start with an explicit 0 offset.
1477
1478 2018-10-02  Jonathan Wakely  <jwakely@redhat.com>
1479
1480         * include/std/variant (__gen_vtable_impl::__visit_invoke): Call __get
1481         directly instead of get, as caller ensures correct index is used.
1482         (holds_alternative, get, get_if): Remove redundant inline specifiers.
1483         (_VARIANT_RELATION_FUNCTION_TEMPLATE): Likewise.
1484
1485 2018-10-02  Joseph Myers  <joseph@codesourcery.com>
1486
1487         * testsuite/lib/libstdc++.exp (libstdc++_init): Use
1488         -fno-show-column in default cxxflags.
1489
1490 2018-10-01  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
1491
1492         * config/os/uclibc/os_defines.h (__NO_STRING_INLINES): Delete.
1493
1494 2018-10-01  Gerald Pfeifer  <gerald@pfeifer.com>
1495
1496         * doc/xml/manual/allocator.xml: Adjust link to "Reconsidering
1497         Custom Memory Allocation".
1498
1499 2018-10-01  Jonathan Wakely  <jwakely@redhat.com>
1500
1501         * doc/html/*: Regenerate.
1502
1503 2018-09-30  Gerald Pfeifer  <gerald@pfeifer.com>
1504
1505         * doc/xml/manual/messages.xml: Switch link to www.oracle.com
1506         to https.
1507
1508 2018-09-30  Gerald Pfeifer  <gerald@pfeifer.com>
1509
1510         * doc/xml/manual/policy_data_structures_biblio.xml: Update
1511         link to Microsoft Component Model Object Technologies.
1512
1513 2018-09-29  Gerald Pfeifer  <gerald@pfeifer.com>
1514
1515         * doc/xml/gnu/fdl-1.3.xml: The Free Software Foundation web
1516         site now uses https. Also omit the unnecessary trailing slash.
1517         * doc/xml/gnu/gpl-3.0.xml: Ditto.
1518
1519 2018-09-28  François Dumont  <fdumont@gcc.gnu.org>
1520
1521         * include/debug/functions.h
1522         (__foreign_iterator_aux3(const _Safe_iterator<>&, const _InputeIter&,
1523         const _InputIter&, __true_type)): Use empty() rather than begin() ==
1524         end().
1525
1526 2018-09-25  Mike Crowe  <mac@mcrowe.com>
1527
1528         * include/std/condition_variable (condition_variable::wait_for): Use
1529         steady clock in overload that uses a predicate.
1530
1531 2018-09-25  Jonathan Wakely  <jwakely@redhat.com>
1532
1533         PR libstdc++/87431
1534         * include/std/variant (_Variant_storage<true, _Types...>::_M_valid):
1535         Avoid runtime test when all alternatives are scalars and so cannot
1536         throw during initialization.
1537
1538 2018-09-25  Gerald Pfeifer  <gerald@pfeifer.com>
1539
1540         * doc/xml/manual/codecvt.xml: Move link to "UTF-8 and Unicode FAQ"
1541         to https.
1542
1543 2018-09-24  Gerald Pfeifer  <gerald@pfeifer.com>
1544
1545         * doc/xml/manual/policy_data_structures_biblio.xml: Update link
1546         to "Priority Queues and the STL".
1547
1548 2018-09-23  Gerald Pfeifer  <gerald@pfeifer.com>
1549
1550         * doc/xml/manual/using_exceptions.xml: Move boost.orgs link to
1551         https.
1552
1553 2018-09-21  François Dumont  <fdumont@gcc.gnu.org>
1554
1555         PR libstdc++/87135
1556         * src/c++11/hashtable_c++0x.cc (_Prime_rehash_policy::_M_next_bkt):
1557         Use __builtin_floor to compute _M_next_resize.
1558         * testsuite/23_containers/unordered_set/hash_policy/71181.cc: Adapt.
1559         * testsuite/23_containers/unordered_set/hash_policy/prime_rehash.cc:
1560         Adapt.
1561
1562 2018-09-21  Jonathan Wakely  <jwakely@redhat.com>
1563
1564         * testsuite/26_numerics/headers/cmath/hypot-long-double.cc: Remove.
1565         * testsuite/26_numerics/headers/cmath/hypot.cc: Restore test for
1566         long double unconditionally, but use lower tolerance when
1567         sizeof(long double) == sizeof(double).
1568
1569 2018-09-20  Christophe Lyon  <christophe.lyon@linaro.org>
1570
1571         * testsuite/26_numerics/headers/cmath/hypot-long-double.cc: Skip
1572         on arm*.
1573
1574 2018-09-19  Jonathan Wakely  <jwakely@redhat.com>
1575
1576         * include/bits/regex_automaton.tcc (_StateSeq<_TraitsT>::_M_clone()):
1577         Remove __glibcxx_assert statements and use map::find instead of
1578         map::operator[].
1579
1580 2018-09-18  François Dumont  <fdumont@gcc.gnu.org>
1581
1582         PR libstdc++/87135
1583         * src/c++11/hashtable_c++0x.cc:
1584         (_Prime_rehash_policy::_M_next_bkt): Return a prime no smaller than
1585         requested size, but not necessarily greater.
1586         (_Prime_rehash_policy::_M_need_rehash): Rehash only if target size is
1587         strictly greater than next resize threshold.
1588         * testsuite/23_containers/unordered_map/modifiers/reserve.cc: Adapt test
1589         to validate that there is no rehash as long as number of insertion is
1590         lower or equal to the reserved number of elements.
1591
1592 2018-09-18  Jonathan Wakely  <jwakely@redhat.com>
1593
1594         * include/bits/unique_ptr.h (__uniq_ptr_impl): Remove static assertion
1595         checking invocable condition.
1596         (unique_ptr::~unique_ptr, unique_ptr::reset): Restore static assertion
1597         here, where types must be complete. Pass pointer to deleter as an
1598         rvalue.
1599         * testsuite/20_util/unique_ptr/requirements/incomplete.cc: New test.
1600
1601 2018-09-13  Jonathan Wakely  <jwakely@redhat.com>
1602
1603         * include/std/variant (variant) [__clang__]: Limit workaround to
1604         Clang 7 and older.
1605
1606 2018-09-11  Jonathan Wakely  <jwakely@redhat.com>
1607
1608         PR libstdc++/87278
1609         * include/bits/shared_ptr.h (make_shared): Use remove_cv instead of
1610         remove_const.
1611         * testsuite/20_util/shared_ptr/creation/87278.cc: New test.
1612
1613         Implement LWG 2905 changes to constrain unique_ptr constructors
1614         * include/bits/unique_ptr.h (__uniq_ptr_impl): Add assertions to
1615         check deleter type.
1616         (unique_ptr::unique_ptr(pointer, const deleter_type&)): Add copy
1617         constructible constraint.
1618         (unique_ptr::unique_ptr(pointer, deleter_type&&)): Disable for
1619         deleters of reference type and add move constructible constraint.
1620         (unique_ptr::unique_ptr(pointer, remove_reference_t<deleter_type>&&)):
1621         Disable for deleters of non-reference type. Define as deleted.
1622         (unique_ptr<T[], D>): Likewise.
1623         * testsuite/20_util/unique_ptr/assign/48635_neg.cc: Replace dg-error
1624         directives with unstable line numbers with dg-prune-output.
1625         * testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: Likewise.
1626         * testsuite/20_util/unique_ptr/cons/lwg2905.cc: New test.
1627         * testsuite/20_util/unique_ptr/specialized_algorithms/swap_cxx17.cc:
1628         Make deleter types invocable.
1629
1630 2018-09-05  Jonathan Wakely  <jwakely@redhat.com>
1631
1632         * libsupc++/cxxabi.h (__cxa_demangle): Clarify doxygen comment.
1633
1634 2018-09-03  Jonathan Wakely  <jwakely@redhat.com>
1635
1636         PR libstdc++/78179
1637         * testsuite/26_numerics/headers/cmath/hypot-long-double.cc: New test
1638         that runs the long double part of hypot.cc.
1639         * testsuite/26_numerics/headers/cmath/hypot.cc: Disable long double
1640         tests unless TEST_HYPOT_LONG_DOUBLE is defined.
1641
1642         * include/bits/stl_vector.h (vector::_Temporary_value::_M_ptr):
1643         Return raw pointer not allocator's pointer type.
1644         (vector::_Temporary_value::_M_val): Use _M_ptr.
1645
1646         PR libstdc++/87194
1647         * include/bits/stl_map.h
1648         (map::map(initializer_list<value_type>, const Compare&, const Alloc&))
1649         (map::map(initializer_list<value_type>, const Alloc&))
1650         (map::map(InputIterator, InputIterator, const Alloc&))
1651         (map::map(InputIterator, InputIterator))
1652         (map::map(InputIterator, InputIterator, const Compare&, const Alloc&))
1653         (map::insert(InputIterator, InputIterator)):
1654         Call _M_insert_range_unique instead of _M_insert_unique.
1655         * include/bits/stl_multimap.h
1656         (multimap::multimap(initializer_list<value_type>, const C&, const A&))
1657         (multimap::multimap(initializer_list<value_type>, const A&))
1658         (multimap::multimap(InputIterator, InputIterator, const A&))
1659         (multimap::multimap(InputIterator, InputIterator))
1660         (multimap::multimap(InputIterator, InputIterator, const C&, const A&))
1661         (multimap::insert(InputIterator, InputIterator)): Call
1662         _M_insert_range_equal instead of _M_insert_equal.
1663         * include/bits/stl_multiset.h
1664         (multiset::multiset(InputIterator, InputIterator))
1665         (multiset::multiset(InputIterator, InputIterator, const C&, const A&))
1666         (multiset::multiset(initializer_list<value_type>, const C&, const A&))
1667         (multiset::multiset(initializer_list<value_type>, const A&))
1668         (multiset::multiset(InputIterator, InputIterator, const A&))
1669         (multiset::insert(InputIterator, InputIterator)): Call
1670         _M_insert_range_equal instead of _M_insert_equal.
1671         * include/bits/stl_set.h
1672         (set::set(InputIterator, InputIterator))
1673         (set::set(InputIterator, InputIterator, const Compare&, const Alloc&))
1674         (set::set(initializer_list<value_type>, const Compare&, const Alloc&))
1675         (set::set(initializer_list<value_type>, const Alloc&))
1676         (set::set(InputIterator, InputIterator, const Alloc&))
1677         (set::insert(InputIterator, InputIterator)):
1678         Call _M_insert_range_unique instead of _M_insert_unique.
1679         * include/bits/stl_tree.h
1680         [__cplusplus >= 201103L] (_Rb_tree::__same_value_type): New alias
1681         template for SFINAE constraints.
1682         [__cplusplus >= 201103L] (_Rb_tree::_M_insert_range_unique): Pair of
1683         constrained overloads that either insert or emplace, depending on
1684         iterator's value_type.
1685         [__cplusplus >= 201103L] (_Rb_tree::_M_insert_range_equal): Likewise.
1686         [__cplusplus < 201103L] (_Rb_tree::_M_insert_range_unique)
1687         (_Rb_tree::_M_insert_range_equal): New functions replacing range
1688         versions of _M_insert_unique and _M_insert_equal.
1689         (_Rb_tree::_M_insert_unique(_InputIterator, _InputIterator))
1690         (_Rb_tree::_M_insert_equal(_InputIterator, _InputIterator)): Remove.
1691         * testsuite/23_containers/map/modifiers/insert/87194.cc: New test.
1692         * testsuite/23_containers/multimap/modifiers/insert/87194.cc: New test.
1693         * testsuite/23_containers/multiset/modifiers/insert/87194.cc: New test.
1694         * testsuite/23_containers/set/modifiers/insert/87194.cc: New test.
1695
1696         PR libstdc++/78595
1697         * include/bits/stl_map.h (map::insert(_Pair&&))
1698         (map::insert(const_iterator, _Pair&&)): Do emplace instead of insert.
1699         * include/bits/stl_multimap.h (multimap::insert(_Pair&&))
1700         (multimap::insert(const_iterator, _Pair&&)): Likewise.
1701         * include/bits/unordered_map.h (unordered_map::insert(_Pair&&))
1702         (unordered_map::insert(const_iterator, _Pair&&))
1703         (unordered_multimap::insert(_Pair&&))
1704         (unordered_multimap::insert(const_iterator, _Pair&&)): Likewise.
1705         * testsuite/23_containers/map/modifiers/insert/78595.cc: New test.
1706         * testsuite/23_containers/multimap/modifiers/insert/78595.cc: New test.
1707         * testsuite/23_containers/unordered_map/modifiers/78595.cc: New test.
1708         * testsuite/23_containers/unordered_multimap/modifiers/78595.cc: New
1709         test.
1710
1711 2018-09-02  François Dumont  <fdumont@gcc.gnu.org>
1712
1713         * include/debug/safe_iterator.h
1714         (_Safe_iterator<_It, _Seq, _Cat>::_Self): New.
1715         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>::_Self):
1716         New.
1717         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
1718         ::_OtherSelf): New.
1719         (_GLIBCXX_DEBUG_VERIFY_OPERANDS, _GLIBCXX_DEBUG_VERIFY_EQ_OPERANDS)
1720         (_GLIBCXX_DEBUG_VERIFY_REL_OPERANDS)
1721         (_GLIBCXX_DEBUG_VERIFY_DIST_OPERANDS): Define macros.
1722         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
1723         ::operator+(difference_type)): Use latters, inline as friend.
1724         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
1725         ::operator-(difference_type)): Likewise.
1726         (operator==(const _Safe_iterator<>&, const _Safe_iterator<>&)):
1727         Likewise.
1728         (operator!=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
1729         Likewise.
1730         (operator<(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
1731         (operator<=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
1732         Likewise.
1733         (operator>(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
1734         (operator>=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
1735         Likewise.
1736         (operator-(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
1737         (operator+(difference_type, const _Safe_iterator<>&)): Likewise.
1738         (operator-(const _Safe_iterator<>&, difference_type)): Likewise.
1739         * include/debug/safe_iterator.tcc
1740         (_Safe_iterator<>::_M_can_advance(difference_type)): Take parameter by
1741         copy.
1742         * include/debug/safe_local_iterator.h
1743         (_Safe_local_iterator<_It, _Seq>::_Self): New.
1744         (_Safe_local_iterator<_It, _Seq>::_OtherSelf): New.
1745         (_GLIBCXX_DEBUG_VERIFY_OPERANDS): Define macro.
1746         (operator==(const _Safe_local_iterator<>&,
1747         const _Safe_local_iterator<>&)): Use latter, inline as friend.
1748         (operator!=(const _Safe_local_iterator<>&,
1749         const _Safe_local_iterator<>&)): Likewise.
1750         * testsuite/util/testsuite_containers.h: Include utility.
1751         (struct forward_members_unordered<_Tp, bool>): Remove 2nd template
1752         parameter.
1753         (forward_members_unordered<>::forward_members_unordered(value_type&)):
1754         Add using namespace std::rel_ops.
1755         Add iterator_concept_checks on local_iterator and const_local_iterator.
1756         Add asserts on comparison between const_local_iterator and
1757         local_iterator.
1758         (struct forward_members_unordered<_Tp, false>): Remove partial
1759         specialization.
1760         * testsuite/23_containers/forward_list/types/1.cc: New.
1761         * testsuite/23_containers/list/types/1.cc: New.
1762
1763 2018-09-01  Gerald Pfeifer  <gerald@pfeifer.com>
1764
1765         * doc/xml/manual/profile_mode.xml: Update three ieeexplore.ieee.org
1766         references.
1767
1768 2018-08-31  Sandra Loosemore  <sandra@codesourcery.com>
1769
1770         * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/10.cc:
1771         Add dg-require-fileio.
1772         * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/11.cc:
1773         Likewise.
1774         * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/5.cc:
1775         Likewise.
1776         * testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc:
1777         Likewise.
1778         * testsuite/25_algorithms/copy/streambuf_iterators/wchar_t/4.cc:
1779         Likewise.
1780         * testsuite/25_algorithms/find/istreambuf_iterators/wchar_t/2.cc:
1781         Likewise.
1782         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-1.cc: Likewise.
1783         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-2.cc: Likewise.
1784         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc: Likewise.
1785         * testsuite/27_io/basic_filebuf/close/wchar_t/12790-4.cc: Likewise.
1786         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/11543.cc: Likewise.
1787         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-1.cc:
1788         Likewise.
1789         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-2.cc:
1790         Likewise.
1791         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-3.cc:
1792         Likewise.
1793         * testsuite/27_io/basic_filebuf/seekoff/wchar_t/12790-4.cc:
1794         Likewise.
1795         * testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-1.cc:
1796         Likewise.
1797         * testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-2.cc:
1798         Likewise.
1799         * testsuite/27_io/basic_filebuf/seekpos/wchar_t/12790-4.cc:
1800         Likewise.
1801         * testsuite/27_io/basic_filebuf/underflow/wchar_t/2.cc: Likewise.
1802         * testsuite/27_io/basic_filebuf/underflow/wchar_t/3.cc: Likewise.
1803         * testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: Likewise.
1804         * testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: Likewise.
1805         * testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc:
1806         Likewise.
1807         * testsuite/27_io/basic_istream/extractors_other/wchar_t/2.cc:
1808         Likewise.
1809         * testsuite/27_io/basic_istream/get/wchar_t/2.cc: Likewise.
1810         * testsuite/27_io/basic_istream/getline/wchar_t/5.cc: Likewise.
1811         * testsuite/27_io/basic_istream/ignore/wchar_t/2.cc: Likewise.
1812         * testsuite/27_io/basic_istream/ignore/wchar_t/3.cc: Likewise.
1813         * testsuite/27_io/basic_istream/seekg/wchar_t/sstream.cc: Likewise.
1814         * testsuite/27_io/basic_istream/tellg/wchar_t/sstream.cc: Likewise.
1815         * testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: Likewise.
1816         * testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: Likewise.
1817         * testsuite/27_io/basic_ostream/inserters_other/wchar_t/1.cc:
1818         Likewise.
1819         * testsuite/27_io/objects/wchar_t/10.cc: Likewise.
1820         * testsuite/27_io/objects/wchar_t/12048-1.cc: Likewise.
1821         * testsuite/27_io/objects/wchar_t/12048-2.cc: Likewise.
1822         * testsuite/27_io/objects/wchar_t/12048-3.cc: Likewise.
1823         * testsuite/27_io/objects/wchar_t/12048-4.cc: Likewise.
1824         * testsuite/27_io/objects/wchar_t/12048-5.cc: Likewise.
1825         * testsuite/experimental/string_view/inserters/wchar_t/2.cc:
1826         Likewise.
1827         * testsuite/ext/stdio_sync_filebuf/wchar_t/1.cc: Likewise.
1828
1829 2018-08-30  Sandra Loosemore  <sandra@codesourcery.com>
1830
1831         * testsuite/experimental/propagate_const/observers/1.cc: Make
1832         dependence on -fdelete-null-pointer-checks explicit.
1833
1834 2018-08-30  Jonathan Wakely  <jwakely@redhat.com>
1835
1836         * include/bits/hashtable_policy.h (__clp2): Fix calculation for LLP64
1837         targets where sizeof(size_t) > sizeof(long). Avoid undefined shifts
1838         of the number of bits in the type.
1839         * include/std/bit (__ceil2): Avoid undefined shifts.
1840         * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Test values with
1841         the most signifiant bit set.
1842
1843         * config/abi/pre/gnu.ver: Add missing exports for mingw.
1844
1845         * include/ext/pointer.h (_Pointer_adapter): Define operators for
1846         pointer arithmetic using long long offsets.
1847         * testsuite/ext/ext_pointer/1.cc: Test pointer arithmetic using
1848         long long values.
1849
1850 2018-08-29  Jonathan Wakely  <jwakely@redhat.com>
1851
1852         PR libstdc++/31413
1853         * testsuite/22_locale/time_get/get_date/wchar_t/4.cc: Check D_FMT
1854         string for alternative format.
1855
1856 2018-08-28  Jonathan Wakely  <jwakely@redhat.com>
1857
1858         PR libstdc++/87116
1859         * src/filesystem/std-path.cc (path::lexically_normal): When handling
1860         a dot-dot filename, preserve an empty final component in the iteration
1861         sequence.
1862         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use preferred-separator for
1863         root-directory.
1864         * testsuite/27_io/filesystem/path/generation/normal.cc: Add new tests
1865         for more than two adjacent dot-dot filenames.
1866         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Replace slashes with
1867         preferred-separator in expected normalized strings.
1868
1869 2018-08-25  Iain Sandoe  <iain@sandoe.co.uk>
1870
1871         PR libstdc++/70694
1872         * configure.host (OPT_LDFLAGS): Don't append
1873         -fvisibility-inlines-hidden for newer Darwin.
1874
1875 2018-08-24  Marc Glisse  <marc.glisse@inria.fr>
1876
1877         PR libstdc++/86822
1878         * libsupc++/new (operator new(size_t, nothrow_t), operator
1879         new[](size_t, nothrow_t), operator new(size_t, align_val_t, nothrow_t),
1880         operator new[](size_t, align_val_t, nothrow_t)): Add malloc attribute.
1881
1882 2018-08-24  Jonathan Wakely  <jwakely@redhat.com>
1883
1884         * include/debug/deque (std::__debug::deque): Declare.
1885         * include/debug/forward_list (std::__debug::forward_list): Declare.
1886         * include/debug/list (std::__debug::list): Declare.
1887         * include/debug/map (std::__debug::map): Declare.
1888         * include/debug/set (std::__debug::set): Declare.
1889         * include/debug/unordered_map (std::__debug::unordered_map): Declare.
1890         * include/debug/unordered_set (std::__debug::unordered_set): Declare.
1891         * include/debug/vector (std::__debug::vector): Declare.
1892         * testsuite/23_containers/deque/types/pmr_typedefs_debug.cc: New test.
1893         * testsuite/23_containers/forward_list/pmr_typedefs_debug.cc: New
1894         test.
1895         * testsuite/23_containers/list/pmr_typedefs_debug.cc: New test.
1896         * testsuite/23_containers/map/pmr_typedefs_debug.cc: New test.
1897         * testsuite/23_containers/multimap/pmr_typedefs_debug.cc: New test.
1898         * testsuite/23_containers/multiset/pmr_typedefs_debug.cc: New test.
1899         * testsuite/23_containers/set/pmr_typedefs_debug.cc: New test.
1900         * testsuite/23_containers/unordered_map/pmr_typedefs_debug.cc: New
1901         test.
1902         * testsuite/23_containers/unordered_multimap/pmr_typedefs_debug.cc:
1903         New test.
1904         * testsuite/23_containers/unordered_multiset/pmr_typedefs_debug.cc:
1905         New test.
1906         * testsuite/23_containers/unordered_set/pmr_typedefs_debug.cc: New
1907         test.
1908         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
1909         Adjust dg-error lineno.
1910         * testsuite/23_containers/vector/types/pmr_typedefs_debug.cc: New
1911         test.
1912
1913 2018-08-23  Jonathan Wakely  <jwakely@redhat.com>
1914
1915         * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
1916         Only define when RTTI is enabled.
1917
1918         * include/debug/vector (__niter_base): Define for C++98.
1919
1920         * testsuite/25_algorithms/partial_sort_copy/debug/irreflexive_neg.cc:
1921         Fix C++98 test to not use C++11 features.
1922         * testsuite/25_algorithms/fill_n/2.cc: Likewise.
1923
1924         * scripts/check_compile: Fix comments.
1925
1926         * include/debug/string (insert(__const_iterator, _InIter, _InIter)):
1927         [!_GLIBCXX_USE_CXX11_ABI]: Replace use of C++11-only cbegin() with
1928         begin(), for C++98 compatibility.
1929
1930         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
1931         (basic_string::__const_iterator): Change access to protected.
1932         [!_GLIBCXX_USE_CXX11_ABI] (basic_string::__const_iterator): Define
1933         as typedef for iterator.
1934         * include/debug/string (__const_iterator): Use typedef from base.
1935         (insert(const_iterator, _CharT))
1936         (replace(const_iterator, const_iterator, const basic_string&))
1937         (replace(const_iterator, const_iterator, const _CharT*, size_type))
1938         (replace(const_iterator, const_iterator, const CharT*))
1939         (replace(const_iterator, const_iterator, size_type, _CharT))
1940         (replace(const_iterator, const_iterator, _InputIter, _InputIter))
1941         (replace(const_iterator, const_iterator, initializer_list<_CharT>)):
1942         Change const_iterator parameters to __const_iterator.
1943         (insert(iterator, size_type, _CharT)): Add C++98 overload.
1944         (insert(const_iterator, _InputIterator, _InputIterator)): Change
1945         const_iterator parameter to __const_iterator.
1946         [!_GLIBCXX_USE_CXX11_ABI]: Add workaround for incorrect return type
1947         of base's member function.
1948         (insert(const_iterator, size_type, _CharT)) [!_GLIBCXX_USE_CXX11_ABI]:
1949         Likewise.
1950         (insert(const_iterator, initializer_list<_CharT>))
1951         [!_GLIBCXX_USE_CXX11_ABI]: Likewise.
1952         * testsuite/21_strings/basic_string/init-list.cc: Remove effective
1953         target directive.
1954
1955         * testsuite/20_util/reference_wrapper/lwg2993.cc: Fix C++11 test to
1956         not use C++14 feature.
1957         * testsuite/23_containers/list/68222_neg.cc: Likewise.
1958
1959         * testsuite/21_strings/basic_string/init-list.cc:
1960         Require cxx11-abi.
1961         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
1962         Likewise.
1963         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
1964         Likewise.
1965
1966         * testsuite/23_containers/deque/capacity/max_size.cc: Fix test for
1967         C++98 mode.
1968         * testsuite/23_containers/deque/modifiers/assign/1.cc: Likewise.
1969         * testsuite/23_containers/list/modifiers/assign/1.cc: Likewise.
1970         * testsuite/23_containers/vector/bool/modifiers/assign/1.cc: Likewise.
1971         * testsuite/23_containers/vector/capacity/max_size.cc: Likewise.
1972         * testsuite/23_containers/vector/modifiers/assign/1.cc: Likewise.
1973
1974 2018-08-22  Jonathan Wakely  <jwakely@redhat.com>
1975
1976         PR libstdc++/87061
1977         * include/experimental/regex [!_GLIBCXX_USE_CXX11_ABI]
1978         (experimental::pmr::match_results, experimental::pmr::cmatch)
1979         (experimental::pmr::smatch, experimental::pmr::wcmatch)
1980         (experimental::pmr::wsmatch): Do not declare for gcc4-compatible ABI,
1981         because COW strings don't support C++11 allocator model.
1982         * include/experimental/string [!_GLIBCXX_USE_CXX11_ABI]
1983         (experimental::pmr::basic_string, experimental::pmr::string)
1984         (experimental::pmr::u16string, experimental::pmr::u32string)
1985         (experimental::pmr::wstring): Likewise.
1986         * include/std/regex [!_GLIBCXX_USE_CXX11_ABI] (pmr::match_results)
1987         (pmr::cmatch, pmr::smatch, pmr::wcmatch, pmr::wsmatch): Likewise.
1988         * include/std/string [!_GLIBCXX_USE_CXX11_ABI] (pmr::basic_string)
1989         (pmr::string, pmr::u16string, pmr::u32string, pmr::wstring): Likewise.
1990         * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Require
1991         cxx11-abi.
1992         * testsuite/28_regex/match_results/pmr_typedefs.cc: Likewise.
1993
1994         PR libstdc++/78448
1995         * include/bits/deque.tcc (deque::_M_range_initialize): Use
1996         _S_check_init_len to check size.
1997         (deque::_M_push_back_aux, deque::_M_push_front_aux): Throw length
1998         error if size would exceed max_size().
1999         * include/bits/stl_deque.h (_Deque_base::size_type): Remove typedef.
2000         (_Deque_base(_Deque_base&&, const allocator_type&, size_t)): Use
2001         size_t instead of size_type.
2002         (deq(size_type, const allocator_type&)
2003         (deq(size_type, const value_type&, const allocator_type&)
2004         (deque::_M_initialize_dispatch): Use _S_check_init_len to check size.
2005         (deque::max_size): Call _S_max_size.
2006         (deque::_S_check_init_len, deque::_S_max_size): New functions.
2007         * include/bits/stl_vector.h (vector(size_type, const allocator_type&))
2008         (vector(size_type, const value_type&, const allocator_type&))
2009         (vector::_M_initialize_dispatch, vector::_M_range_initialize): Use
2010         _S_check_init_len to check size.
2011         (vector::max_size): Call _S_max_size.
2012         (vector::_M_check_len): Prevent max from being expanded as a
2013         function-like macro.
2014         (vector::_S_check_init_len, vector::_S_max_size): New functions.
2015         * include/bits/vector.tcc (vector::_M_assign_aux): Use
2016         _S_check_init_len to check size.
2017         * testsuite/23_containers/deque/capacity/max_size.cc: New test.
2018         * testsuite/23_containers/vector/capacity/max_size.cc: New test.
2019
2020 2018-08-22  François Dumont  <fdumont@gcc.gnu.org>
2021
2022         PR libstdc++/68222
2023         * include/debug/safe_iterator.h
2024         (_Safe_iterator<_It, _Sq, _Cat>): Add category template parameter.
2025         (_Safe_iterator<>::_Const_iterator): Remove.
2026         (_Safe_iterator<>::_IsConstant): New.
2027         (_Safe_iterator<>::_OtherIterator): New.
2028         (_Safe_iterator<_It, _Sq, _Cat>::_Safe_iterator<_MutIte>(
2029         const _Safe_iterator<_MutIte, _Sq, _Cat>&)): Add _IsConstant::__value in
2030         __gnu_cxx::__enable_if condition.
2031         (_Safe_iterator<_It, _Sq, _Cat>::_M_get_distance_to): New.
2032         (_Safe_iterator<_It, _Sq, _Cat>::_M_get_distance_from_begin): New.
2033         (_Safe_iterator<_It, _Sq, _Cat>::_M_get_distance_to_end): New.
2034         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>): New.
2035         (_Safe_iterator<_It, _Sq, _Cat>::operator--()): Move...
2036         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>
2037         ::operator--()): ...here.
2038         (_Safe_iterator<_It, _Sq, _Cat>::operator--(int)): Move...
2039         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>
2040         ::operator--(int)): ...here.
2041         (_Safe_iterator<_It, _Sq, _Cat>::_M_decrementable()): Move...
2042         (_Safe_iterator<_It, _Sq, std::bidirectional_iterator_tag>
2043         ::_M_decrementable()): ...here.
2044         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>): New.
2045         (_Safe_iterator<_It, _Sq, _Cat>::operator[](const difference_type&)):
2046         Move...
2047         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
2048         ::operator[](const difference_type&)): ...here.
2049         (_Safe_iterator<_It, _Sq, _Cat>::operator+=(const difference_type&)):
2050         Move...
2051         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
2052         ::operator+=(const difference_type&)): ...here.
2053         (_Safe_iterator<_It, _Sq, _Cat>::operator+(const difference_type&)):
2054         Move...
2055         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
2056         ::operator+(const difference_type&)): ...here.
2057         (_Safe_iterator<_It, _Sq, _Cat>::operator-=(const difference_type&)):
2058         Move...
2059         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
2060         ::operator-=(const difference_type&)): ...here.
2061         (_Safe_iterator<_It, _Sq, _Cat>::operator-(const difference_type&)):
2062         Move...
2063         (_Safe_iterator<_It, _Sq, std::random_access_iterator_tag>
2064         ::operator-(const difference_type&)): ...here.
2065         (operator<(const _Safe_iterator<>&, const _Safe_iterator<>&)):
2066         Constraint to random access iterators.
2067         (operator<=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
2068         Likewise.
2069         (operator>(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
2070         (operator>=(const _Safe_iterator<>&, const _Safe_iterator<>&)):
2071         Likewise.
2072         (operator-(const _Safe_iterator<>&, const _Safe_iterator<>&)): Likewise.
2073         (operator+(const difference_type&, const _Safe_iterator<>&)): Likewise.
2074         (__check_dereferenceable(const _Safe_iterator<>&)): Remove.
2075         (__get_distance): Remove.
2076         (__get_distance_from_begin): Remove.
2077         (__get_distance_to_end): Remove.
2078         (struct __is_safe_random_iterator<_Safe_iterator<>>): Remove partial
2079         specialization.
2080         (__base(const _Safe_iterator<>&, std::input_iterator_tag)): Remove.
2081         (__base(const _Safe_iterator<>&, std::random_access_iterator_tag)): Remove.
2082         (__base(const _Safe_iterator<>&)): Constraint to random access iterator.
2083         * include/debug/safe_iterator.tcc
2084         (_Safe_iterator<>::_M_get_distance_from_begin()): New.
2085         (_Safe_iterator<>::_M_get_distance_to_end()): New.
2086         (_Safe_iterator<>::_M_get_distance_to(const _Safe_iterator<>&)): New.
2087         (_Safe_iterator<_It, _Seq, std::random_access_iterator_tag>
2088         ::_M_valid_range): New.
2089         * include/debug/safe_local_iterator.h
2090         (_Safe_local_iterator<>::_Const_local_iterator): Remove.
2091         (_Safe_local_iterator<>::_IsConstant): New.
2092         (_Safe_local_iterator<>::_OtherIterator): New.
2093         (_Safe_local_iterator<_It, _Cont>::_Safe_local_iterator<_MutIte, _Cont>(
2094         const _Safe_local_iterator<_MutIte, _Seq>&)): Add _IsConstant::__value
2095         in __gnu_cxx::__enable_if condition. If singular compare base iterator
2096         with _MutIte rather than _It.
2097         (_Safe_local_iterator<>::_S_constant): Make constexpr.
2098         (_Safe_local_iterator<>::_M_get_distance_to): New.
2099         (__check_dereferenceable(const _Safe_local_iterator<>&)): Remove.
2100         (__get_distance(const _Safe_local_iterator<>&,
2101         const _Safe_local_iterator<>&, std::input_iterator_tag)): Remove.
2102         (__valid_range(const _Safe_local_iterator<>&,
2103         const _Safe_local_iterator<>&)): New.
2104         * include/debug/safe_local_iterator.tcc
2105         (_Safe_local_iterator<>::_M_get_distance_to): New.
2106         * include/debug/deque (std::__debug::deque<>): Add
2107         ::__gnu_debug::_Safe_iterator<> friend declaration.
2108         * include/debug/forward_list (std::__debug::forward_list<>): Likewise.
2109         * include/debug/list (std::__debug::list<>): Likewise.
2110         * include/debug/map.h (std::__debug::map<>): Likewise.
2111         * include/debug/multimap.h (std::__debug::multimap<>): Likewise.
2112         * include/debug/set.h (std::__debug::set<>): Likewise.
2113         * include/debug/multiset.h (std::__debug::multiset<>): Likewise.
2114         * include/debug/string (std::__debug::basic_string<>): Likewise.
2115         * include/debug/unordered_map (std::__debug::unordered_map<>): Likewise
2116         and add ::__gnu_debug::_Safe_local_iterator<> friend declaration.
2117         (std::__debug::unordered_multimap<>): Likewise.
2118         * include/debug/unordered_set (std::__debug::unordered_set<>): Likewise.
2119         (std::__debug::unordered_multiset<>): Likewise.
2120         * include/debug/formatter.h: Adapt.
2121         * include/debug/helper_functions.h
2122         (__gnu_debug::_Safe_local_iterator<>): Add declaration.
2123         (__get_distance<_Ite>(_Ite, _Ite, std::random_access_iterator_tag):
2124         Pass parameter by copy.
2125         (__get_distance<_Ite>(_Ite, _Ite, std::input_iterator_tag): Likewise.
2126         (__get_distance<_Ite>(_Ite, _Ite): Likewise.
2127         (__valid_range_aux<_Integral>): Pass _Integral by copy.
2128         (__valid_range<_InputIterator>): Pass _InputIterator by copy.
2129         (__valid_range<>(const _Safe_iterator<>&,
2130         const _Safe_iterator<>&, typename _Distance_traits<>::__type&)):
2131         Declare.
2132         (__valid_range(const _Safe_local_iterator<>&,
2133         const _Safe_local_iterator<>&, typename _Distance_traits<>::__type&)):
2134         Declare.
2135         (__valid_range<>(const _Safe_iterator<>&, const _Safe_iterator<>&)):
2136         Declare.
2137         (__valid_range(const _Safe_local_iterator<>&, const _Safe_local_iterator<>&)):
2138         Declare.
2139         (__can_advance): Adapt.
2140         (struct __is_safe_random_iterator<>): Remove.
2141         (struct _SIter_base<>): Remove.
2142         * include/debug/functions.h: Include <bits/stl_iterator.h>.
2143         (__check_dereferenceable): Remove.
2144         (__foreign_iterator_aux4, __foreign_iterator_aux3): Adapt.
2145         (__foreign_iterator_aux2, __foreign_iterator_aux): Adapt.
2146         (__foreign_iterator): Adapt.
2147         * include/debug/stl_iterator.h
2148         (__is_safe_random_iterator<std::reverse_iterator<>>): Remove.
2149         (__base(const std::reverse_iterator<_Safe_iterator<_It, _Sq>)):
2150         Constraint for random access iterators.
2151         (__niter_base): Adapt.
2152         * testsuite/util/testsuite_containers.h:
2153         Include <bits/boost_concept_check.h>.
2154         (iterator_concept_checks<_It, _Mutable, _Category>): New.
2155         (citerator<_Cont>::forward_members::forward_members()): Instantiate
2156         latter for container iterator and const_iterator.
2157         * testsuite/23_containers/list/68222_neg.cc: New.
2158         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc: Adapt
2159         line number.
2160         * testsuite/23_containers/unordered_set/debug/debug_functions.cc:
2161         (test01): Remove.
2162         * testsuite/23_containers/vector/debug/debug_functions.cc (test01):
2163         Remove.
2164
2165 2018-08-22  Jonathan Wakely  <jwakely@redhat.com>
2166
2167         PR libstdc++/77854
2168         * doc/xml/manual/status_cxx1998.xml: Document size_type and
2169         difference_type for containers.
2170         * doc/html/*: Regenerate.
2171
2172 2018-08-21  François Dumont  <fdumont@gcc.gnu.org>
2173
2174         P0646R1 Improving the Return Value of Erase-Like Algorithms I
2175         * include/debug/forward_list (forward_list::__remove_return_type):
2176         Define typedef as size_type or void, according to __cplusplus value.
2177         (_GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
2178         empty, according to __cplusplus value.
2179         (_GLIBCXX20_ONLY): Define macro.
2180         (forward_list::remove, forward_list::unique): Use typedef and macro
2181         to change return type and add abi-tag for C++2a. Return number of
2182         removed elements for C++2a.
2183         (forward_list::remove_if<Pred>, forward_list::unique<BinPred>): Use
2184         typedef to change return type for C++2a. Return number of removed
2185         elements for C++2a.
2186         * include/debug/list (list::__remove_return_type): Define typedef as
2187         size_type or void, according to __cplusplus value.
2188         (_GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
2189         empty, according to __cplusplus value.
2190         (_GLIBCXX20_ONLY): Define macro.
2191         (list::remove, list::unique): Use typedef and macro to change return
2192         type and add abi-tag for C++2a. Return number of removed elements for
2193         C++2a.
2194         (list::remove_if<Predicate>, list::unique<BinaryPredicate>): Use typedef
2195         to change return type for C++2a. Return number of removed elements for
2196         C++2a.
2197
2198 2018-08-21  David Edelsohn  <dje.gcc@gmail.com>
2199
2200         * testsuite/18_support/new_nothrow.cc: XFAIL on AIX.
2201
2202 2018-08-21  Jonathan Wakely  <jwakely@redhat.com>
2203
2204         * testsuite/26_numerics/bit/bitops.count/countl_one.cc: Remove
2205         redundant dg-do directive.
2206         * testsuite/26_numerics/bit/bitops.count/countl_zero.cc: Likewise.
2207         * testsuite/26_numerics/bit/bitops.count/countr_one.cc: Likewise.
2208         * testsuite/26_numerics/bit/bitops.count/countr_zero.cc: Likewise.
2209         * testsuite/26_numerics/bit/bitops.count/popcount.cc: Likewise.
2210
2211 2018-08-20  Jonathan Wakely  <jwakely@redhat.com>
2212
2213         PR libstdc++/86963
2214         * include/std/tuple (_Tuple_impl::operator=): Define as deleted.
2215         (_Tuple_impl::_M_assign): New functions to perform assignment instead
2216         of assignment operators.
2217         (_Tuple_impl::_M_swap): Remove exception specification.
2218         (_Tuple_impl<_Idx, _Head>): Likewise.
2219         (_TC::_NonNestedTuple, _TC::_NotSameTuple): Use __remove_cvref_t.
2220         (__tuple_base): Remove.
2221         (tuple, tuple<_T1, _T2>): Remove inheritance from __tuple_base.
2222         (tuple::operator=, tuple<_T1, _T2>::operator=): Call _M_assign.
2223         (tuple::swap, tuple<_T1, _T2>::swap): Define exception specification
2224         using __is_nothrow_swappable.
2225         (tuple<_T1, _T2>::tuple(_U1&&, _U2&&)): Use __remove_cvref_t.
2226
2227         * include/std/optional (_Optional_payload): Use variable templates
2228         for conditions in default template arguments and exception
2229         specifications.
2230         (optional): Likewise. Adjust indentation.
2231         (optional::__not_self, optional::__not_tag, optional::_Requires): New
2232         SFINAE helpers.
2233         (optional::optional): Use new helpers in constructor constraints.
2234         * include/std/type_traits (__or_v, __and_v): New variable templates.
2235         * testsuite/20_util/optional/cons/value_neg.cc: Change dg-error to
2236         dg-prune-output. Remove unused header.
2237
2238 2018-08-18  François Dumont  <fdumont@gcc.gnu.org>
2239
2240         * testsuite/25_algorithms/copy/86658.cc: Use dg-options to define
2241         _GLIBCXX_DEBUG.
2242
2243 2018-08-17  Jonathan Wakely  <jwakely@redhat.com>
2244
2245         PR libstdc++/86963
2246         * include/std/tuple (__tuple_base): New class template with deleted
2247         copy assignment operator.
2248         (tuple, tuple<_T1, _T2>): Derive from __tuple_base<tuple> so that
2249         implicit copy/move assignment operator will be deleted/suppressed.
2250         (tuple::__assignable, tuple<_T1, _T2>::__assignable): New helper
2251         functions for SFINAE constraints on assignment operators.
2252         (tuple::__nothrow_assignable, tuple<_T1, _T2>::__nothrow_assignable):
2253         New helper functions for exception specifications.
2254         (tuple::operator=(const tuple&), tuple::operator=(tuple&&))
2255         (tuple<_T1, _T2>::operator=(const tuple&))
2256         (tuple<_T1, _T2>::operator=(tuple&&)): Change parameter types to
2257         __nonesuch_no_braces when the operator should be defined implicitly.
2258         Use __nothrow_assignable for exception specifications.
2259         (tuple::operator=(const tuple<_UElements...>&))
2260         (tuple::operator=(tuple<_UElements...>&&))
2261         (tuple<_T1, _T2>::operator=(const tuple<_U1, _U2>&))
2262         (tuple<_T1, _T2>::operator=(tuple<_U1, _U2>&&))
2263         (tuple<_T1, _T2>::operator=(const pair<_U1, _U2>&))
2264         (tuple<_T1, _T2>::operator=(pair<_U1, _U2>&&)): Constrain using
2265         __assignable and use __nothrow_assignable for exception
2266         specifications.
2267         * python/libstdcxx/v6/printers.py (is_specialization_of): Accept
2268         gdb.Type as first argument, instead of a string.
2269         (StdTuplePrinter._iterator._is_nonempty_tuple): New method to check
2270         tuple for expected structure.
2271         (StdTuplePrinter._iterator.__init__): Use _is_nonempty_tuple.
2272         * testsuite/20_util/tuple/dr2729.cc: New test.
2273         * testsuite/20_util/tuple/element_access/get_neg.cc: Change dg-error
2274         to dg-prune-output.
2275
2276 2018-08-16  Jonathan Wakely  <jwakely@redhat.com>
2277
2278         * include/tr1/legendre_function.tcc (__sph_legendre): Avoid warning
2279         about signed/unsigned comparison.
2280
2281         * include/std/ostream (basic_ostream::sentry::~sentry): Suppress
2282         deprecation warnings for using uncaught_exception().
2283
2284         PR libstdc++/86447
2285         * src/c++11/cow-stdexcept.cc [_GLIBCXX_FULLY_DYNAMIC_STRING]
2286         (logic_error::logic_error(logic_error&&))
2287         (logic_error::operator=(logic_error&&))
2288         (runtime_error::runtime_error(runtime_error&&))
2289         (runtime_error::operator=(runtime_error&&)): Copy strings instead of
2290         moving, to avoid allocating empty reps for moved-from strings.
2291
2292 2018-08-15  Jonathan Wakely  <jwakely@redhat.com>
2293
2294         * include/experimental/regex: Remove begin/end macros for namespace.
2295         * include/experimental/string: Likewise.
2296         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_deque.cc:
2297         New test.
2298         * testsuite/experimental/polymorphic_allocator/
2299         pmr_typedefs_forward_list.cc: New test.
2300         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_list.cc:
2301         New test.
2302         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_map.cc:
2303         New test.
2304         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_match.cc:
2305         New test.
2306         * testsuite/experimental/polymorphic_allocator/
2307         pmr_typedefs_multimap.cc: New test.
2308         * testsuite/experimental/polymorphic_allocator/
2309         pmr_typedefs_multiset.cc: New test.
2310         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_set.cc:
2311         New test.
2312         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
2313         New test.
2314         * testsuite/experimental/polymorphic_allocator/
2315         pmr_typedefs_unordered_map.cc: New test.
2316         * testsuite/experimental/polymorphic_allocator/
2317         pmr_typedefs_unordered_multimap.cc: New test.
2318         * testsuite/experimental/polymorphic_allocator/
2319         pmr_typedefs_unordered_multiset.cc: New test.
2320         * testsuite/experimental/polymorphic_allocator/
2321         pmr_typedefs_unordered_set.cc: New test.
2322         * testsuite/experimental/polymorphic_allocator/pmr_typedefs_vector.cc:
2323         New test.
2324
2325         * include/bits/uses_allocator.h (__uses_allocator_construct): Qualify
2326         calls to __uses_allocator_construct_impl and __use_alloc.
2327         * include/experimental/memory_resource
2328         (polymorphic_allocator::_M_construct): Remove.
2329         (polymorphic_allocator::construct): Call __uses_allocator_construct.
2330         Qualify calls to __use_alloc.
2331         * include/std/memory_resource (polymorphic_allocator::construct): Fix
2332         type in SFINAE constraint. Use constexpr if instead of tag dispatching
2333         to _S_construct overloads.
2334         (polymorphic_allocator::construct(pair<T1, T2>*, ...)): Fix order of
2335         arguments to _S_construct_p.
2336         (polymorphic_allocator::_S_construct): Remove.
2337         (polymorphic_allocator::_S_construct_p): Return allocators by value
2338         not by reference.
2339         * include/std/scoped_allocator (scoped_allocator_adaptor::construct):
2340         Qualify calls to __use_alloc.
2341         * testsuite/20_util/polymorphic_allocator/construct_pair.cc: New test,
2342         copied from testsuite/20_util/scoped_allocator/construct_pair.cc.
2343         * testsuite/experimental/polymorphic_allocator/1.cc: New test.
2344         * testsuite/experimental/polymorphic_allocator/construct_pair.cc:
2345         New test.
2346
2347         * src/c++17/memory_resource.cc [!_GLIBCXX_HAS_GTHREADS]
2348         (atomic_mem_res): Add unsynchronized definition for single-threaded.
2349
2350 2018-08-14  Jonathan Wakely  <jwakely@redhat.com>
2351
2352         PR libstdc++/86954
2353         * include/bits/stl_tempbuf.h (return_temporary_buffer): Use
2354         non-placement delete.
2355
2356         * include/std/chrono (__check_overflow): Simplify definition.
2357         (_Checked_integral_constant): Remove.
2358
2359         PR libstdc++/86846
2360         * src/c++17/default_resource.h: New file, defining default_res.
2361         * src/c++17/memory_resource.cc [ATOMIC_POINTER_LOCK_FREE != 2]
2362         (atomic_mem_res): Define alternative for atomic<memory_resource*>
2363         using a mutex instead of atomics.
2364
2365         PR libstdc++/85343
2366         * config/abi/pre/gnu.ver: Export new symbol.
2367         * doc/xml/manual/abi.xml: Document new versions.
2368         * include/bits/fstream.tcc (basic_filebuf<C, T>::underflow)
2369         (basic_filebuf<C, T>::xsgetn): Pass errno to __throw_ios_failure.
2370         * include/bits/functexcept.h (__throw_ios_failure(const char*, int)):
2371         Declare new overload.
2372         * src/c++11/cxx11-ios_failure.cc (__ios_failure): Add new constructor
2373         and static member function.
2374         (__throw_ios_failure(const char*, int)): Define.
2375         * src/c++98/ios_failure.cc [!_GLIBCXX_USE_DUAL_ABI]
2376         (__throw_ios_failure(const char*, int)): Define.
2377
2378 2018-08-14  Jeremy Sawicki  <jeremy-gcc@sawicki.us>
2379
2380         * include/ext/rope (_Rope_iterator_base(const _Rope_iterator_base&))
2381         (_Rope_const_iterator::operator=(const _Rope_const_iterator&))
2382         (_Rope_iterator::operator=(const _Rope_iterator&)): Ensure
2383         copied/assigned rope iterators don't retain pointers to the iterator
2384         they were copied/assigned from.
2385         * testsuite/ext/rope/7.cc: New.
2386
2387 2018-08-13  Jonathan Wakely  <jwakely@redhat.com>
2388
2389         PR libstdc++/45093
2390         * include/bits/stl_tree.h (_Rb_tree::_M_destroy_node(_Link_type)):
2391         Combine definitions to avoid --detect-odr-violations warning.
2392
2393         * libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Use
2394         __is_pow2 to check for valid alignment. Avoid branching when rounding
2395         size to multiple of alignment.
2396
2397         * include/Makefile.am: Install <bit> and <version> for freestanding.
2398         * include/Makefile.in: Regenerate.
2399         * testsuite/17_intro/freestanding.cc: Check for <bit> and <version>.
2400
2401         Revert
2402         2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
2403
2404         PR target/85904
2405         * configure.ac: Define HAVE_ALIGNED_ALLOC if building for
2406         Newlib.
2407         * configure: Regenerate.
2408
2409 2018-08-10  Jonathan Wakely  <jwakely@redhat.com>
2410
2411         PR libstdc++/68210
2412         * doc/xml/manual/intro.xml: Document LWG 206 change.
2413         * libsupc++/del_op.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
2414         * libsupc++/del_opa.cc: Likewise.
2415         * libsupc++/del_opant.cc: Likewise.
2416         * libsupc++/del_opnt.cc: Likewise. Call operator delete(ptr) instead
2417         of free(ptr).
2418         * libsupc++/del_ops.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
2419         * libsupc++/del_opsa.cc: Likewise.
2420         * libsupc++/del_opva.cc: Likewise.
2421         * libsupc++/del_opvant.cc: Likewise.
2422         * libsupc++/del_opvnt.cc: Likewise. Call operator delete[](ptr)
2423         instead of operator delete(ptr).
2424         * libsupc++/del_opvs.cc: Replace _GLIBCXX_USE_NOEXCEPT with noexcept.
2425         * libsupc++/del_opvsa.cc: Likewise.
2426         * libsupc++/new_op.cc: Use __builtin_expect in check for zero size.
2427         * libsupc++/new_opa.cc: Use nullptr instead of literal 0.
2428         * libsupc++/new_opant.cc: Likewise. Replace _GLIBCXX_USE_NOEXCEPT
2429         with noexcept.
2430         * libsupc++/new_opnt.cc: Likewise. Call operator new(sz) instead of
2431         malloc(sz).
2432         * libsupc++/new_opvant.cc: Use nullptr and noexcept.
2433         * libsupc++/new_opvnt.cc: Likewise. Call operator new[](sz) instead of
2434         operator new(sz, nothrow).
2435         * testsuite/18_support/new_nothrow.cc: New test.
2436
2437 2018-08-10  Martin Liska  <mliska@suse.cz>
2438
2439         * libsupc++/new_op.cc (new): Remove __builtin_expect as malloc
2440         predictor can handle that.
2441         * libsupc++/new_opa.cc: Likewise.
2442         * libsupc++/new_opnt.cc (new): Likewise.
2443
2444 2018-08-10  Sebastian Huber  <sebastian.huber@embedded-brains.de>
2445
2446         PR target/85904
2447         * configure.ac: Define HAVE_ALIGNED_ALLOC if building for
2448         Newlib.
2449         * configure: Regenerate.
2450
2451 2018-08-10  Jonathan Wakely  <jwakely@redhat.com>
2452
2453         * include/std/deque (std::pmr::deque): Declare alias.
2454         * include/std/forward_list (std::pmr::forward_list): Likewise.
2455         * include/std/list (std::pmr::list): Likewise.
2456         * include/std/map (std::pmr::map, std::pmr::multimap): Likewise.
2457         * include/std/regex (std::pmr::match_results, std::pmr::cmatch)
2458         (std::pmr::smatch, std::pmr::wcmatch, std::pmr::wsmatch): Likewise.
2459         * include/std/set (std::pmr::set, std::pmr::multiset): Likewise.
2460         * include/std/string (std::pmr::basic_string, std::pmr::string)
2461         (std::pmr::u16string, std::pmr::u32string, std::pmr::wstring):
2462         Likewise.
2463         * include/std/unordered_map (std::pmr::unordered_map)
2464         (std::pmr::unordered_multimap): Likewise.
2465         * include/std/unordered_set (std::pmr::unordered_set)
2466         (std::pmr::unordered_multiset): Likewise.
2467         * include/std/vector (std::pmr::vector): Likewise.
2468         * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: New test.
2469         * testsuite/23_containers/deque/types/pmr_typedefs.cc: New test.
2470         * testsuite/23_containers/forward_list/pmr_typedefs.cc: New test.
2471         * testsuite/23_containers/list/pmr_typedefs.cc: New test.
2472         * testsuite/23_containers/map/pmr_typedefs.cc: New test.
2473         * testsuite/23_containers/multimap/pmr_typedefs.cc: New test.
2474         * testsuite/23_containers/multiset/pmr_typedefs.cc: New test.
2475         * testsuite/23_containers/set/pmr_typedefs.cc: New test.
2476         * testsuite/23_containers/unordered_map/pmr_typedefs.cc: New test.
2477         * testsuite/23_containers/unordered_multimap/pmr_typedefs.cc: New
2478         test.
2479         * testsuite/23_containers/unordered_multiset/pmr_typedefs.cc: New
2480         test.
2481         * testsuite/23_containers/unordered_set/pmr_typedefs.cc: New test.
2482         * testsuite/23_containers/vector/pmr_typedefs.cc: New test.
2483         * testsuite/28_regex/match_results/pmr_typedefs.cc: New test.
2484
2485 2018-08-08  François Dumont  <fdumont@gcc.gnu.org>
2486
2487         * include/bits/stl_algo.h
2488         (__rotate(_Ite, _Ite, _Ite, forward_iterator_tag))
2489         (__rotate(_Ite, _Ite, _Ite, bidirectional_iterator_tag))
2490         (__rotate(_Ite, _Ite, _Ite, random_access_iterator_tag)): Move code
2491         duplication...
2492         (rotate(_Ite, _Ite, _Ite)): ...here.
2493         (__stable_partition_adaptive(_FIt, _FIt, _Pred, _Dist, _Pointer, _Dist)):
2494         Simplify rotate call.
2495         (__rotate_adaptive(_BIt1, _BIt1, _BIt1, _Dist, _Dist, _Bit2, _Dist)):
2496         Likewise.
2497         (__merge_without_buffer(_BIt, _BIt, _BIt, _Dist, _Dist, _Comp)):
2498         Likewise.
2499
2500 2018-08-08  Jonathan Wakely  <jwakely@redhat.com>
2501
2502         * libsupc++/new_opa.cc (aligned_alloc): Declare inside namespace to
2503         avoid clashing with an ::aligned_alloc function that was not detected
2504         by configure.
2505
2506         * doc/xml/manual/using.xml: Fix markup for empty table entry.
2507         * doc/html/*: Regenerate.
2508
2509         * doc/xml/manual/using.xml: Add missing header to table and fix typo.
2510         * doc/html/*: Regenerate.
2511
2512         PR libstdc++/86597
2513         * include/bits/fs_dir.h (directory_entry::_M_file_type(error_code&)):
2514         Clear error_code when cached type is used.
2515         * testsuite/27_io/filesystem/directory_entry/86597.cc: New test.
2516
2517 2018-08-07  Jonathan Wakely  <jwakely@redhat.com>
2518
2519         PR libstdc++/86874
2520         * include/std/variant (_Copy_ctor_base::_M_destructive_move): Define
2521         here instead of in _Move_assign_base.
2522         (_Copy_ctor_base<true, _Types...>::_M_destructive_move): Define.
2523         (_Copy_assign_base::operator=): Use _M_destructive_move when changing
2524         the contained value to another alternative.
2525         (_Move_assign_base::operator=): Likewise.
2526         (_Move_assign_base::_M_destructive_move): Remove.
2527         * testsuite/20_util/variant/86874.cc: New test.
2528
2529         PR libstdc++/86861
2530         * libsupc++/new_opa.cc [_GLIBCXX_HAVE_MEMALIGN] (aligned_alloc):
2531         Replace macro with inline function.
2532         [__sun]: Increase alignment to meet memalign precondition.
2533         [!HAVE__ALIGNED_MALLOC && !HAVE_POSIX_MEMALIGN && !HAVE_MEMALIGN]
2534         (aligned_alloc): Move check for valid alignment to operator new.
2535         Remove redundant check for non-zero size, it's enforced by the caller.
2536         (operator new): Move check for valid alignment here. Use
2537         __builtin_expect on check for zero size.
2538
2539         * config/abi/pre/gnu.ver: Export monotonic_buffer_resource members.
2540         * include/std/memory_resource (monotonic_buffer_resource::release):
2541         Call _M_release_buffers to free buffers.
2542         (monotonic_buffer_resource::do_allocate): Call _M_new_buffer to
2543         allocate a new buffer from upstream.
2544         (monotonic_buffer_resource::_M_new_buffer): Declare.
2545         (monotonic_buffer_resource::_M_release_buffers): Declare.
2546         (monotonic_buffer_resource::_Chunk): Replace definition with
2547         declaration as opaque type.
2548         * src/c++17/memory_resource.cc (monotonic_buffer_resource::_Chunk):
2549         Define.
2550         (monotonic_buffer_resource::_M_new_buffer): Define.
2551         (monotonic_buffer_resource::_M_release_buffers): Define.
2552
2553 2018-08-05  François Dumont  <fdumont@gcc.gnu.org>
2554
2555         * include/bits/stl_iterator.h: Fix comment.
2556
2557 2018-08-03  Jonathan Wakely  <jwakely@redhat.com>
2558
2559         * src/c++11/system_error.cc
2560         (system_error_category::default_error_condition): Add workaround for
2561         ENOTEMPTY and EEXIST having the same value on AIX.
2562         * testsuite/19_diagnostics/error_category/system_category.cc: Add
2563         extra testcases for EDOM, EILSEQ, ERANGE, EEXIST and ENOTEMPTY.
2564
2565 2018-08-01  Jonathan Wakely  <jwakely@redhat.com>
2566
2567         * configure: Regenerate.
2568         * configure.ac: Add -D_GLIBCXX_ASSERTIONS to default DEBUG_FLAGS.
2569         * src/c++11/futex.cc: Use __glibcxx_assert instead of
2570         _GLIBCXX_DEBUG_ASSERT.
2571
2572 2018-08-01  Mike Crowe  <mac@mcrowe.com>
2573
2574         * include/std/condition_variable (wait_for): Use steady_clock.
2575
2576 2018-08-01  Mike Crowe  <mac@mcrowe.com>
2577
2578         * include/std/condition_variable (wait_until): Only report timeout
2579         if we really have timed out when measured against the
2580         caller-supplied clock.
2581         * testsuite/30_threads/condition_variable/members/2.cc: Add test
2582         case to confirm above behaviour.
2583
2584 2018-08-01  Jonathan Wakely  <jwakely@redhat.com>
2585
2586         PR libstdc++/60555
2587         * src/c++11/system_error.cc
2588         (system_error_category::default_error_condition): New override to
2589         check for POSIX errno values.
2590         * testsuite/19_diagnostics/error_category/generic_category.cc: New
2591         * testsuite/19_diagnostics/error_category/system_category.cc: New
2592         test.
2593
2594 2018-07-31  Jonathan Wakely  <jwakely@redhat.com>
2595
2596         PR libstdc++/86751
2597         * include/bits/stl_pair.h (__pair_base): New class with deleted copy
2598         assignment operator.
2599         (pair): Derive from __pair_base.
2600         (pair::operator=): Remove deleted overload.
2601         * python/libstdcxx/v6/printers.py (StdPairPrinter): New pretty printer
2602         so that new base class isn't shown in GDB.
2603         * testsuite/20_util/pair/86751.cc: New test.
2604         * testsuite/20_util/pair/ref_assign.cc: New test.
2605
2606         * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP)
2607         (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Move definitions here.
2608         (_GLIBCXX_HAVE_BUILTIN_LAUNDER): Likewise. Use !__is_identifier
2609         instead of __has_builtin.
2610         * include/std/type_traits (_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP)
2611         (_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE): Remove definitions from here.
2612         * include/std/version [!_GLIBCXX_HAS_GTHREADS]
2613         (__cpp_lib_shared_timed_mutex, __cpp_lib_scoped_lock)
2614         (__cpp_lib_shared_mutex): Don't define when Gthreads not in use.
2615         [!_GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP]
2616         (__cpp_lib_has_unique_object_representations): Don't define when
2617         builtin not available.
2618         [!_GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE] (__cpp_lib_is_aggregate):
2619         Likewise.
2620         [!_GLIBCXX_HAVE_BUILTIN_LAUNDER] (__cpp_lib_launder): Likewise.
2621         * libsupc++/new (_GLIBCXX_HAVE_BUILTIN_LAUNDER): Remove definition
2622         from here.
2623
2624         * doc/xml/manual/test.xml: Improve documentation on writing tests for
2625         newer standards.
2626         * doc/xml/manual/using.xml: Document all headers for C++11 and later.
2627         * doc/html/*: Regenerate.
2628
2629         * include/ext/pointer.h [__cplusplus >= 201103L]
2630         (_Pointer_adapter::operator bool): Add explicit conversion operator
2631         to replace safe bool idiom.
2632
2633 2018-07-30  Jonathan Wakely  <jwakely@redhat.com>
2634
2635         PR libstdc++/86734
2636         * include/bits/stl_iterator.h (reverse_iterator::operator->): Call
2637         _S_to_pointer (LWG 1052, LWG 2118).
2638         (reverse_iterator::_S_to_pointer): Define overloaded helper functions.
2639         * testsuite/24_iterators/reverse_iterator/dr1052.cc: New test.
2640         * testsuite/24_iterators/reverse_iterator/dr2188.cc: New test.
2641
2642         * libsupc++/new_opa.cc (operator new(size_t, align_val_t)): Add
2643         workaround for aligned_alloc bug on AIX.
2644         * testsuite/18_support/new_aligned.cc: New test.
2645
2646 2018-07-26  Marek Polacek  <polacek@redhat.com>
2647
2648         * testsuite/30_threads/condition_variable_any/cond.cc: New.
2649
2650 2018-07-26  Marek Polacek  <polacek@redhat.com>
2651
2652         * src/c++98/locale_init.cc: Fix #ifdef condition.
2653
2654 2018-07-26  Jonathan Wakely  <jwakely@redhat.com>
2655
2656         * testsuite/18_support/aligned_alloc/aligned_alloc.cc: Add
2657         dg-require-cstdint directive.
2658         * testsuite/20_util/allocator/overaligned.cc: Likewise.
2659         * testsuite/20_util/any/cons/aligned.cc: Likewise.
2660         * testsuite/20_util/monotonic_buffer_resource/allocate.cc: Likewise.
2661         * testsuite/20_util/monotonic_buffer_resource/deallocate.cc: Likewise.
2662         * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
2663         Likewise.
2664         * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
2665         * testsuite/23_containers/list/modifiers/insert/25288.cc: Likewise.
2666         * testsuite/23_containers/set/allocator/move_assign.cc: Likewise.
2667         * testsuite/25_algorithms/make_heap/complexity.cc: Likewise.
2668         * testsuite/25_algorithms/pop_heap/complexity.cc: Require cstdint and
2669         random_device effective-target.
2670         * testsuite/25_algorithms/push_heap/complexity.cc: Likewise.
2671         * testsuite/25_algorithms/sample/1.cc: Require cstdint.
2672         * testsuite/25_algorithms/sample/2.cc: Likewise.
2673         * testsuite/25_algorithms/sort_heap/complexity.cc: Require cstdint
2674         and random_device.
2675         * testsuite/26_numerics/headers/random/types_std_c++0x.cc: Require
2676         cstdint.
2677         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
2678         Likewise.
2679         * testsuite/26_numerics/random/discard_block_engine/requirements/
2680         constexpr_data.cc: Likewise.
2681         * testsuite/26_numerics/random/discard_block_engine/requirements/
2682         constexpr_functions.cc: Likewise.
2683         * testsuite/26_numerics/random/independent_bits_engine/requirements/
2684         constexpr_functions.cc: Likewise.
2685         * testsuite/26_numerics/random/linear_congruential_engine/requirements/
2686         constexpr_data.cc: Likewise.
2687         * testsuite/26_numerics/random/linear_congruential_engine/requirements/
2688         constexpr_functions.cc: Likewise.
2689         * testsuite/26_numerics/random/mersenne_twister_engine/requirements/
2690         constexpr_data.cc: Likewise.
2691         * testsuite/26_numerics/random/mersenne_twister_engine/requirements/
2692         constexpr_functions.cc: Likewise.
2693         * testsuite/26_numerics/random/pr60037-neg.cc: Likewise.
2694         * testsuite/26_numerics/random/seed_seq/cons/65631.cc: Likewise.
2695         * testsuite/26_numerics/random/shuffle_order_engine/requirements/
2696         constexpr_data.cc: Add dg-require-cstdint directive.
2697         * testsuite/26_numerics/random/shuffle_order_engine/requirements/
2698         constexpr_functions.cc: Likewise.
2699         * testsuite/26_numerics/random/subtract_with_carry_engine/requirements/
2700         constexpr_data.cc: Likewise.
2701         * testsuite/26_numerics/random/subtract_with_carry_engine/requirements/
2702         constexpr_functions.cc: Likewise.
2703         * testsuite/26_numerics/random/uniform_real_distribution/operators/
2704         64351.cc: Likewise.
2705         * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc: Likewise.
2706         * testsuite/experimental/algorithm/sample-2.cc: Likewise.
2707         * testsuite/experimental/algorithm/sample.cc: Likewise.
2708         * testsuite/experimental/algorithm/search.cc: Likewise.
2709         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
2710         * testsuite/experimental/any/cons/aligned.cc: Likewise.
2711         * testsuite/experimental/memory_resource/new_delete_resource.cc:
2712         Likewise.
2713         * testsuite/experimental/memory_resource/resource_adaptor.cc: Likewise.
2714         * testsuite/experimental/random/randint.cc: Likewise.
2715         * testsuite/experimental/source_location/1.cc: Likewise.
2716         * testsuite/ext/bitmap_allocator/overaligned.cc: Likewise.
2717         * testsuite/ext/malloc_allocator/overaligned.cc: Likewise.
2718         * testsuite/ext/mt_allocator/overaligned.cc: Likewise.
2719         * testsuite/ext/new_allocator/overaligned.cc: Likewise.
2720         * testsuite/ext/pb_ds/regression/hash_map_rand.cc: Likewise.
2721         * testsuite/ext/pb_ds/regression/hash_set_rand.cc: Likewise.
2722         * testsuite/ext/pb_ds/regression/list_update_map_rand.cc: Likewise.
2723         * testsuite/ext/pb_ds/regression/list_update_set_rand.cc: Likewise.
2724         * testsuite/ext/pb_ds/regression/priority_queue_rand.cc: Likewise.
2725         * testsuite/ext/pb_ds/regression/tree_map_rand.cc: Likewise.
2726         * testsuite/ext/pb_ds/regression/tree_set_rand.cc: Likewise.
2727         * testsuite/ext/pb_ds/regression/trie_map_rand.cc: Likewise.
2728         * testsuite/ext/pb_ds/regression/trie_set_rand.cc: Likewise.
2729         * testsuite/ext/pool_allocator/overaligned.cc: Likewise.
2730         * testsuite/ext/throw_allocator/check_allocate_max_size.cc: Likewise.
2731         * testsuite/ext/throw_allocator/check_deallocate_null.cc: Likewise.
2732         * testsuite/ext/throw_allocator/check_delete.cc: Likewise.
2733         * testsuite/ext/throw_allocator/check_new.cc: Likewise.
2734         * testsuite/ext/throw_allocator/deallocate_global.cc: Likewise.
2735         * testsuite/ext/throw_allocator/deallocate_local.cc: Likewise.
2736         * testsuite/ext/throw_allocator/explicit_instantiation.cc: Likewise.
2737         * testsuite/ext/throw_allocator/variadic_construct.cc: Likewise.
2738         * testsuite/tr1/8_c_compatibility/cinttypes/functions.cc: Likewise.
2739
2740         * testsuite/30_threads/recursive_mutex/cons/1.cc: Likewise.
2741         * testsuite/30_threads/recursive_mutex/cons/assign_neg.cc: Likewise.
2742         * testsuite/30_threads/recursive_mutex/cons/copy_neg.cc: Likewise.
2743         * testsuite/30_threads/recursive_mutex/dest/destructor_locked.cc:
2744         Likewise.
2745         * testsuite/30_threads/recursive_mutex/lock/1.cc: Likewise.
2746         * testsuite/30_threads/recursive_mutex/native_handle/1.cc: Likewise.
2747         * testsuite/30_threads/recursive_mutex/native_handle/typesizes.cc:
2748         Likewise.
2749         * testsuite/30_threads/recursive_mutex/requirements/standard_layout.cc:
2750         Likewise.
2751         * testsuite/30_threads/recursive_mutex/requirements/typedefs.cc:
2752         Likewise.
2753         * testsuite/30_threads/recursive_mutex/try_lock/1.cc: Likewise.
2754         * testsuite/30_threads/recursive_mutex/try_lock/2.cc: Likewise.
2755         * testsuite/30_threads/recursive_mutex/unlock/1.cc: Likewise.
2756         * testsuite/30_threads/recursive_mutex/unlock/2.cc: Likewise.
2757         * testsuite/30_threads/recursive_timed_mutex/cons/1.cc: Likewise.
2758         * testsuite/30_threads/recursive_timed_mutex/cons/assign_neg.cc:
2759         Likewise.
2760         * testsuite/30_threads/recursive_timed_mutex/cons/copy_neg.cc:
2761         Likewise.
2762         * testsuite/30_threads/recursive_timed_mutex/dest/
2763         destructor_locked.cc: Likewise.
2764         * testsuite/30_threads/recursive_timed_mutex/lock/1.cc: Likewise.
2765         * testsuite/30_threads/recursive_timed_mutex/lock/2.cc: Likewise.
2766         * testsuite/30_threads/recursive_timed_mutex/native_handle/1.cc:
2767         Likewise.
2768         * testsuite/30_threads/recursive_timed_mutex/native_handle/
2769         typesizes.cc: Likewise.
2770         * testsuite/30_threads/recursive_timed_mutex/requirements/typedefs.cc:
2771         Likewise.
2772         * testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc:
2773         Likewise.
2774         * testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc:
2775         Likewise.
2776         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
2777         Likewise.
2778         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
2779         Likewise.
2780         * testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
2781         Likewise.
2782         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
2783         Likewise.
2784         * testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
2785         Likewise.
2786         * testsuite/30_threads/recursive_timed_mutex/unlock/1.cc: Likewise.
2787         * testsuite/30_threads/recursive_timed_mutex/unlock/2.cc: Likewise.
2788         * testsuite/30_threads/scoped_lock/cons/1.cc: Likewise.
2789         * testsuite/30_threads/scoped_lock/requirements/
2790         explicit_instantiation.cc: Likewise.
2791         * testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Likewise.
2792         * testsuite/30_threads/shared_future/cons/assign.cc: Likewise.
2793         * testsuite/30_threads/shared_future/cons/constexpr.cc: Likewise.
2794         * testsuite/30_threads/shared_future/cons/copy.cc: Likewise.
2795         * testsuite/30_threads/shared_future/cons/default.cc: Likewise.
2796         * testsuite/30_threads/shared_future/cons/move.cc: Likewise.
2797         * testsuite/30_threads/shared_future/cons/move_assign.cc: Likewise.
2798         * testsuite/30_threads/shared_future/members/45133.cc: Likewise.
2799         * testsuite/30_threads/shared_future/members/get.cc: Likewise.
2800         * testsuite/30_threads/shared_future/members/get2.cc: Likewise.
2801         * testsuite/30_threads/shared_future/members/valid.cc: Likewise.
2802         * testsuite/30_threads/shared_future/members/wait.cc: Likewise.
2803         * testsuite/30_threads/shared_future/members/wait_for.cc: Likewise.
2804         * testsuite/30_threads/shared_future/members/wait_until.cc: Likewise.
2805         * testsuite/30_threads/shared_future/requirements/
2806         explicit_instantiation.cc: Likewise.
2807         * testsuite/30_threads/shared_lock/cons/1.cc: Likewise.
2808         * testsuite/30_threads/shared_lock/cons/2.cc: Likewise.
2809         * testsuite/30_threads/shared_lock/cons/3.cc: Likewise.
2810         * testsuite/30_threads/shared_lock/cons/4.cc: Likewise.
2811         * testsuite/30_threads/shared_lock/cons/5.cc: Likewise.
2812         * testsuite/30_threads/shared_lock/cons/6.cc: Likewise.
2813         * testsuite/30_threads/shared_lock/locking/1.cc: Likewise.
2814         * testsuite/30_threads/shared_lock/locking/2.cc: Likewise.
2815         * testsuite/30_threads/shared_lock/locking/3.cc: Likewise.
2816         * testsuite/30_threads/shared_lock/locking/4.cc: Likewise.
2817         * testsuite/30_threads/shared_lock/modifiers/1.cc: Likewise.
2818         * testsuite/30_threads/shared_lock/requirements/
2819         explicit_instantiation.cc: Likewise.
2820         * testsuite/30_threads/shared_lock/requirements/typedefs.cc: Likewise.
2821         * testsuite/30_threads/shared_mutex/cons/1.cc: Likewise.
2822         * testsuite/30_threads/shared_mutex/cons/assign_neg.cc: Likewise.
2823         * testsuite/30_threads/shared_mutex/cons/copy_neg.cc: Likewise.
2824         * testsuite/30_threads/shared_mutex/requirements/standard_layout.cc:
2825         Likewise.
2826         * testsuite/30_threads/shared_mutex/try_lock/1.cc: Likewise.
2827         * testsuite/30_threads/shared_mutex/try_lock/2.cc: Likewise.
2828         * testsuite/30_threads/shared_mutex/unlock/1.cc: Likewise.
2829         * testsuite/30_threads/shared_timed_mutex/cons/1.cc: Likewise.
2830         * testsuite/30_threads/shared_timed_mutex/cons/assign_neg.cc: Likewise.
2831         * testsuite/30_threads/shared_timed_mutex/cons/copy_neg.cc: Likewise.
2832         * testsuite/30_threads/shared_timed_mutex/requirements/
2833         standard_layout.cc: Likewise.
2834         * testsuite/30_threads/shared_timed_mutex/try_lock/1.cc: Likewise.
2835         * testsuite/30_threads/shared_timed_mutex/try_lock/2.cc: Likewise.
2836         * testsuite/30_threads/shared_timed_mutex/try_lock/3.cc: Likewise.
2837         * testsuite/30_threads/shared_timed_mutex/unlock/1.cc: Likewise.
2838         * testsuite/30_threads/this_thread/1.cc: Likewise.
2839         * testsuite/30_threads/this_thread/2.cc: Likewise.
2840         * testsuite/30_threads/this_thread/3.cc: Likewise.
2841         * testsuite/30_threads/this_thread/4.cc: Likewise.
2842         * testsuite/30_threads/this_thread/58038.cc: Likewise.
2843         * testsuite/30_threads/thread/70503.cc: Likewise.
2844         * testsuite/30_threads/thread/84532.cc: Likewise.
2845         * testsuite/30_threads/thread/adl.cc: Likewise.
2846         * testsuite/30_threads/thread/cons/1.cc: Likewise.
2847         * testsuite/30_threads/thread/cons/2.cc: Likewise.
2848         * testsuite/30_threads/thread/cons/3.cc: Likewise.
2849         * testsuite/30_threads/thread/cons/4.cc: Likewise.
2850         * testsuite/30_threads/thread/cons/49668.cc: Likewise.
2851         * testsuite/30_threads/thread/cons/5.cc: Likewise.
2852         * testsuite/30_threads/thread/cons/6.cc: Likewise.
2853         * testsuite/30_threads/thread/cons/7.cc: Likewise.
2854         * testsuite/30_threads/thread/cons/8.cc: Likewise.
2855         * testsuite/30_threads/thread/cons/84535.cc: Likewise.
2856         * testsuite/30_threads/thread/cons/9.cc: Likewise.
2857         * testsuite/30_threads/thread/cons/assign_neg.cc: Likewise.
2858         * testsuite/30_threads/thread/cons/copy_neg.cc: Likewise.
2859         * testsuite/30_threads/thread/cons/lwg2097.cc: Likewise.
2860         * testsuite/30_threads/thread/cons/moveable.cc: Likewise.
2861         * testsuite/30_threads/thread/cons/terminate.cc: Likewise.
2862         * testsuite/30_threads/thread/id/operators.cc: Likewise.
2863         * testsuite/30_threads/thread/members/1.cc: Likewise.
2864         * testsuite/30_threads/thread/members/2.cc: Likewise.
2865         * testsuite/30_threads/thread/members/3.cc: Likewise.
2866         * testsuite/30_threads/thread/members/4.cc: Likewise.
2867         * testsuite/30_threads/thread/members/5.cc: Likewise.
2868         * testsuite/30_threads/thread/members/hardware_concurrency.cc:
2869         Likewise.
2870         * testsuite/30_threads/thread/native_handle/cancel.cc: Likewise.
2871         * testsuite/30_threads/thread/swap/1.cc: Likewise.
2872         * testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
2873         * testsuite/30_threads/timed_mutex/cons/assign_neg.cc: Likewise.
2874         * testsuite/30_threads/timed_mutex/cons/copy_neg.cc: Likewise.
2875         * testsuite/30_threads/timed_mutex/dest/destructor_locked.cc: Likewise.
2876         * testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
2877         * testsuite/30_threads/timed_mutex/native_handle/1.cc: Likewise.
2878         * testsuite/30_threads/timed_mutex/native_handle/typesizes.cc:
2879         Likewise.
2880         * testsuite/30_threads/timed_mutex/requirements/
2881         standard_layout.cc: Likewise.
2882         * testsuite/30_threads/timed_mutex/requirements/typedefs.cc: Likewise.
2883         * testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
2884         * testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
2885         * testsuite/30_threads/timed_mutex/try_lock_for/1.cc: Likewise.
2886         * testsuite/30_threads/timed_mutex/try_lock_for/2.cc: Likewise.
2887         * testsuite/30_threads/timed_mutex/try_lock_for/3.cc: Likewise.
2888         * testsuite/30_threads/timed_mutex/try_lock_until/1.cc: Likewise.
2889         * testsuite/30_threads/timed_mutex/try_lock_until/2.cc: Likewise.
2890         * testsuite/30_threads/timed_mutex/try_lock_until/57641.cc: Likewise.
2891         * testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
2892         * testsuite/30_threads/timed_mutex/unlock/2.cc: Likewise.
2893         * testsuite/30_threads/try_lock/1.cc: Likewise.
2894         * testsuite/30_threads/try_lock/2.cc: Likewise.
2895         * testsuite/30_threads/try_lock/3.cc: Likewise.
2896         * testsuite/30_threads/try_lock/4.cc: Likewise.
2897         * testsuite/30_threads/unique_lock/cons/1.cc: Likewise.
2898         * testsuite/30_threads/unique_lock/cons/2.cc: Likewise.
2899         * testsuite/30_threads/unique_lock/cons/3.cc: Likewise.
2900         * testsuite/30_threads/unique_lock/cons/4.cc: Likewise.
2901         * testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
2902         * testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
2903         * testsuite/30_threads/unique_lock/locking/1.cc: Likewise.
2904         * testsuite/30_threads/unique_lock/locking/2.cc: Likewise.
2905         * testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
2906         * testsuite/30_threads/unique_lock/locking/4.cc: Likewise.
2907         * testsuite/30_threads/unique_lock/modifiers/1.cc: Likewise.
2908         * testsuite/30_threads/unique_lock/requirements/
2909         explicit_instantiation.cc: Likewise.
2910         * testsuite/30_threads/unique_lock/requirements/typedefs.cc: Likewise.
2911
2912         * testsuite/30_threads/async/42819.cc: Remove dg-require-cstdint
2913         directive.
2914         * testsuite/30_threads/async/49668.cc: Likewise.
2915         * testsuite/30_threads/async/54297.cc: Likewise.
2916         * testsuite/30_threads/async/84532.cc: Likewise.
2917         * testsuite/30_threads/async/any.cc: Likewise.
2918         * testsuite/30_threads/async/async.cc: Likewise.
2919         * testsuite/30_threads/async/except.cc: Likewise.
2920         * testsuite/30_threads/async/forced_unwind.cc: Likewise.
2921         * testsuite/30_threads/async/launch.cc: Likewise.
2922         * testsuite/30_threads/async/lwg2021.cc: Likewise.
2923         * testsuite/30_threads/async/sync.cc: Likewise.
2924         * testsuite/30_threads/call_once/39909.cc: Likewise.
2925         * testsuite/30_threads/call_once/49668.cc: Likewise.
2926         * testsuite/30_threads/call_once/60497.cc: Likewise.
2927         * testsuite/30_threads/call_once/call_once1.cc: Likewise.
2928         * testsuite/30_threads/call_once/constexpr.cc: Likewise.
2929         * testsuite/30_threads/call_once/dr2442.cc: Likewise.
2930         * testsuite/30_threads/call_once/once_flag.cc: Likewise.
2931         * testsuite/30_threads/condition_variable/54185.cc: Likewise.
2932         * testsuite/30_threads/condition_variable/cons/1.cc: Likewise.
2933         * testsuite/30_threads/condition_variable/cons/assign_neg.cc:
2934         Likewise.
2935         * testsuite/30_threads/condition_variable/cons/copy_neg.cc: Likewise.
2936         * testsuite/30_threads/condition_variable/members/1.cc: Likewise.
2937         * testsuite/30_threads/condition_variable/members/2.cc: Likewise.
2938         * testsuite/30_threads/condition_variable/members/3.cc: Likewise.
2939         * testsuite/30_threads/condition_variable/members/53841.cc: Likewise.
2940         * testsuite/30_threads/condition_variable/members/68519.cc: Likewise.
2941         * testsuite/30_threads/condition_variable/native_handle/typesizes.cc:
2942         Likewise.
2943         * testsuite/30_threads/condition_variable/requirements/
2944         standard_layout.cc: Likewise.
2945         * testsuite/30_threads/condition_variable/requirements/typedefs.cc:
2946         * Likewise.
2947         * testsuite/30_threads/condition_variable_any/50862.cc: Likewise.
2948         * testsuite/30_threads/condition_variable_any/53830.cc: Likewise.
2949         * testsuite/30_threads/condition_variable_any/cons/1.cc: Likewise.
2950         * testsuite/30_threads/condition_variable_any/cons/assign_neg.cc:
2951         Likewise.
2952         * testsuite/30_threads/condition_variable_any/cons/copy_neg.cc:
2953         Likewise.
2954         * testsuite/30_threads/condition_variable_any/members/1.cc: Likewise.
2955         * testsuite/30_threads/condition_variable_any/members/2.cc: Likewise.
2956         * testsuite/30_threads/future/cons/assign_neg.cc: Likewise.
2957         * testsuite/30_threads/future/cons/constexpr.cc: Likewise.
2958         * testsuite/30_threads/future/cons/copy_neg.cc: Likewise.
2959         * testsuite/30_threads/future/cons/default.cc: Likewise.
2960         * testsuite/30_threads/future/cons/move.cc: Likewise.
2961         * testsuite/30_threads/future/cons/move_assign.cc: Likewise.
2962         * testsuite/30_threads/future/members/45133.cc: Likewise.
2963         * testsuite/30_threads/future/members/get.cc: Likewise.
2964         * testsuite/30_threads/future/members/get2.cc: Likewise.
2965         * testsuite/30_threads/future/members/share.cc: Likewise.
2966         * testsuite/30_threads/future/members/valid.cc: Likewise.
2967         * testsuite/30_threads/future/members/wait.cc: Likewise.
2968         * testsuite/30_threads/future/members/wait_for.cc: Likewise.
2969         * testsuite/30_threads/future/members/wait_until.cc: Likewise.
2970         * testsuite/30_threads/future/requirements/explicit_instantiation.cc:
2971         Likewise.
2972         * testsuite/30_threads/headers/condition_variable/types_std_c++0x.cc:
2973         Likewise.
2974         * testsuite/30_threads/headers/future/types_std_c++0x.cc: Likewise.
2975         * testsuite/30_threads/headers/mutex/types_std_c++0x.cc: Likewise.
2976         * testsuite/30_threads/headers/thread/std_c++0x_neg.cc: Likewise.
2977         * testsuite/30_threads/headers/thread/types_std_c++0x.cc: Likewise.
2978         * testsuite/30_threads/lock/1.cc: Likewise.
2979         * testsuite/30_threads/lock/2.cc: Likewise.
2980         * testsuite/30_threads/lock/3.cc: Likewise.
2981         * testsuite/30_threads/lock/4.cc: Likewise.
2982         * testsuite/30_threads/lock_guard/cons/1.cc: Likewise.
2983         * testsuite/30_threads/lock_guard/requirements/
2984         explicit_instantiation.cc: Likewise.
2985         * testsuite/30_threads/lock_guard/requirements/typedefs.cc: Likewise.
2986         * testsuite/30_threads/mutex/cons/1.cc: Likewise.
2987         * testsuite/30_threads/mutex/cons/assign_neg.cc: Likewise.
2988         * testsuite/30_threads/mutex/cons/constexpr.cc: Likewise.
2989         * testsuite/30_threads/mutex/cons/copy_neg.cc: Likewise.
2990         * testsuite/30_threads/mutex/dest/destructor_locked.cc: Likewise.
2991         * testsuite/30_threads/mutex/lock/1.cc: Likewise.
2992         * testsuite/30_threads/mutex/native_handle/1.cc: Likewise.
2993         * testsuite/30_threads/mutex/native_handle/typesizes.cc: Likewise.
2994         * testsuite/30_threads/mutex/requirements/standard_layout.cc::
2995         Likewise.
2996         * testsuite/30_threads/mutex/requirements/typedefs.cc: Likewise.
2997         * testsuite/30_threads/mutex/try_lock/1.cc: Likewise.
2998         * testsuite/30_threads/mutex/try_lock/2.cc: Likewise.
2999         * testsuite/30_threads/mutex/unlock/1.cc: Likewise.
3000         * testsuite/30_threads/mutex/unlock/2.cc: Likewise.
3001         * testsuite/30_threads/once_flag/cons/constexpr.cc: Likewise.
3002         * testsuite/30_threads/packaged_task/49668.cc: Likewise.
3003         * testsuite/30_threads/packaged_task/60564.cc: Likewise.
3004         * testsuite/30_threads/packaged_task/cons/1.cc: Likewise.
3005         * testsuite/30_threads/packaged_task/cons/2.cc: Likewise.
3006         * testsuite/30_threads/packaged_task/cons/3.cc: Likewise.
3007         * testsuite/30_threads/packaged_task/cons/56492.cc: Likewise.
3008         * testsuite/30_threads/packaged_task/cons/alloc.cc: Likewise.
3009         * testsuite/30_threads/packaged_task/cons/alloc2.cc: Likewise.
3010         * testsuite/30_threads/packaged_task/cons/alloc_min.cc: Likewise.
3011         * testsuite/30_threads/packaged_task/cons/assign_neg.cc: Likewise.
3012         * testsuite/30_threads/packaged_task/cons/copy_neg.cc: Likewise.
3013         * testsuite/30_threads/packaged_task/cons/move.cc: Likewise.
3014         * testsuite/30_threads/packaged_task/cons/move_assign.cc: Likewise.
3015         * testsuite/30_threads/packaged_task/members/at_thread_exit.cc:
3016         Likewise.
3017         * testsuite/30_threads/packaged_task/members/get_future.cc: Likewise.
3018         * testsuite/30_threads/packaged_task/members/get_future2.cc: Likewise.
3019         * testsuite/30_threads/packaged_task/members/invoke.cc: Likewise.
3020         * testsuite/30_threads/packaged_task/members/invoke2.cc: Likewise.
3021         * testsuite/30_threads/packaged_task/members/invoke3.cc: Likewise.
3022         * testsuite/30_threads/packaged_task/members/invoke4.cc: Likewise.
3023         * testsuite/30_threads/packaged_task/members/invoke5.cc: Likewise.
3024         * testsuite/30_threads/packaged_task/members/reset.cc: Likewise.
3025         * testsuite/30_threads/packaged_task/members/reset2.cc: Likewise.
3026         * testsuite/30_threads/packaged_task/members/swap.cc: Likewise.
3027         * testsuite/30_threads/packaged_task/members/valid.cc: Likewise.
3028         * testsuite/30_threads/packaged_task/requirements/
3029         explicit_instantiation.cc: Likewise.
3030         * testsuite/30_threads/packaged_task/uses_allocator.cc: Likewise.
3031         * testsuite/30_threads/promise/60966.cc: Likewise.
3032         * testsuite/30_threads/promise/69106.cc: Likewise.
3033         * testsuite/30_threads/promise/cons/1.cc: Likewise.
3034         * testsuite/30_threads/promise/cons/alloc.cc: Likewise.
3035         * testsuite/30_threads/promise/cons/alloc2.cc: Likewise.
3036         * testsuite/30_threads/promise/cons/alloc_min.cc: Likewise.
3037         * testsuite/30_threads/promise/cons/assign_neg.cc: Likewise.
3038         * testsuite/30_threads/promise/cons/copy_neg.cc: Likewise.
3039         * testsuite/30_threads/promise/cons/move.cc: Likewise.
3040         * testsuite/30_threads/promise/cons/move_assign.cc: Likewise.
3041         * testsuite/30_threads/promise/members/at_thread_exit.cc: Likewise.
3042         * testsuite/30_threads/promise/members/at_thread_exit2.cc: Likewise.
3043         * testsuite/30_threads/promise/members/get_future.cc: Likewise.
3044         * testsuite/30_threads/promise/members/get_future2.cc: Likewise.
3045         * testsuite/30_threads/promise/members/set_exception.cc: Likewise.
3046         * testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
3047         * testsuite/30_threads/promise/members/set_value.cc: Likewise.
3048         * testsuite/30_threads/promise/members/set_value2.cc: Likewise.
3049         * testsuite/30_threads/promise/members/set_value3.cc: Likewise.
3050         * testsuite/30_threads/promise/members/swap.cc: Likewise.
3051         * testsuite/30_threads/promise/requirements/explicit_instantiation.cc:
3052         * Likewise.
3053         * testsuite/30_threads/promise/uses_allocator.cc: Likewise.
3054
3055         * testsuite/18_support/numeric_limits/char16_32_t.cc: Qualify names
3056         from namespace std.
3057         * testsuite/20_util/align/2.cc: Remove dg-require-cstdint directive.
3058         * testsuite/20_util/duration/arithmetic/1.cc: Likewise.
3059         * testsuite/20_util/duration/arithmetic/2.cc: Likewise.
3060         * testsuite/20_util/duration/arithmetic/dr2020.cc: Likewise.
3061         * testsuite/20_util/duration/arithmetic/dr934-1.cc: Likewise.
3062         * testsuite/20_util/duration/arithmetic/dr934-2.cc: Likewise.
3063         * testsuite/20_util/duration/comparison_operators/1.cc: Likewise.
3064         * testsuite/20_util/duration/cons/1.cc: Likewise.
3065         * testsuite/20_util/duration/cons/1_neg.cc: Likewise.
3066         * testsuite/20_util/duration/cons/2.cc: Likewise.
3067         * testsuite/20_util/duration/cons/54025.cc: Likewise.
3068         * testsuite/20_util/duration/cons/dr974_neg.cc: Likewise.
3069         * testsuite/20_util/duration/requirements/explicit_instantiation/
3070         explicit_instantiation.cc: Likewise.
3071         * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
3072         * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
3073         * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
3074         * testsuite/20_util/make_signed/requirements/typedefs-4.cc: Likewise.
3075         * testsuite/20_util/ratio/comparisons/comp1.cc: Likewise.
3076         * testsuite/20_util/ratio/comparisons/comp2.cc: Likewise.
3077         * testsuite/20_util/ratio/comparisons/comp3.cc: Likewise.
3078         * testsuite/20_util/ratio/cons/cons1.cc: Likewise.
3079         * testsuite/20_util/ratio/operations/45866.cc: Likewise.
3080         * testsuite/20_util/ratio/operations/47913.cc: Likewise.
3081         * testsuite/20_util/ratio/operations/53840.cc: Likewise.
3082         * testsuite/20_util/ratio/operations/ops1.cc: Likewise.
3083         * testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
3084         * testsuite/20_util/system_clock/1.cc: Likewise.
3085         * testsuite/20_util/time_point/1.cc: Likewise.
3086         * testsuite/20_util/time_point/2.cc: Likewise.
3087         * testsuite/20_util/time_point/3.cc: Likewise.
3088         * testsuite/20_util/time_point/requirements/explicit_instantiation/
3089         explicit_instantiation.cc: Likewise.
3090         * testsuite/21_strings/basic_string/requirements/
3091         explicit_instantiation/char16_t/1.cc: Likewise.
3092         * testsuite/21_strings/basic_string/requirements/
3093         explicit_instantiation/char32_t/1.cc: Likewise.
3094         * testsuite/21_strings/basic_string_view/requirements/
3095         explicit_instantiation/char16_t/1.cc: Likewise.
3096         * testsuite/21_strings/basic_string_view/requirements/
3097         explicit_instantiation/char32_t/1.cc: Likewise.
3098         * testsuite/21_strings/char_traits/requirements/
3099         explicit_instantiation/char16_t/1.cc: Likewise.
3100         * testsuite/21_strings/char_traits/requirements/
3101         explicit_instantiation/char32_t/1.cc: Likewise.
3102         * testsuite/21_strings/headers/string/types_std_c++0x.cc: Likewise.
3103         * testsuite/22_locale/codecvt/char16_t.cc: Likewise.
3104         * testsuite/22_locale/codecvt/char32_t.cc: Likewise.
3105         * testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc:
3106         Likewise.
3107         * testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc:
3108         Likewise.
3109         * testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc:
3110         Likewise.
3111         * testsuite/22_locale/codecvt/utf8.cc: Likewise.
3112         * testsuite/23_containers/vector/bool/72847.cc: Likewise.
3113         * testsuite/23_containers/vector/debug/multithreaded_swap.cc:
3114         Likewise.
3115         * testsuite/experimental/string_view/requirements/
3116         explicit_instantiation/char16_t/1.cc: Likewise.
3117         * testsuite/experimental/string_view/requirements/
3118         explicit_instantiation/char32_t/1.cc: Likewise.
3119         * testsuite/ext/vstring/requirements/explicit_instantiation/char16_t/
3120         1.cc: Likewise.
3121         * testsuite/ext/vstring/requirements/explicit_instantiation/char32_t/
3122         1.cc: Likewise.
3123
3124         * include/ext/throw_allocator.h [!_GLIBCXX_USE_C99_STDINT_TR1]
3125         (random_condition, throw_value_random, throw_allocator_random)
3126         (std::hash<throw_value_random>): Do not define when <tr1/random> is
3127         not usable.
3128         * src/c++11/cow-stdexcept.cc [!_GLIBCXX_USE_C99_STDINT_TR1]: Do not
3129         define transactional memory support when <stdint.h> is not usable.
3130
3131         * include/bits/hashtable_policy.h (__detail::__clp2): Use faster
3132         implementation that doesn't depend on <stdint.h> types.
3133         * include/std/memory (align) [!_GLIBCXX_USE_C99_STDINT_TR1]: Use
3134         std::size_t when std::uintptr_t is not usable.
3135         [!_GLIBCXX_USE_C99_STDINT_TR1] (pointer_safety, declare_reachable)
3136         (undeclare_reachable, declare_no_pointers, undeclare_no_pointers):
3137         Define independent of _GLIBCXX_USE_C99_STDINT_TR1.
3138
3139         * include/bits/basic_string.h [!_GLIBCXX_USE_C99_STDINT_TR1]
3140         (hash<u16string>, hash<u32string>): Remove dependency on
3141         _GLIBCXX_USE_C99_STDINT_TR1.
3142         * include/bits/char_traits.h [!_GLIBCXX_USE_C99_STDINT_TR1]
3143         (char_traits<char16_t>, char_traits<char32_t>): Remove dependency on
3144         _GLIBCXX_USE_C99_STDINT_TR1. Use __UINT_LEAST16_TYPE__ and
3145         __UINT_LEAST32_TYPE__ or make_unsigned when <stdint.h> is not usable.
3146         * include/bits/codecvt.h [!_GLIBCXX_USE_C99_STDINT_TR1]
3147         (codecvt<char16_t, char, mbstate_t>)
3148         (codecvt<char32_t, char, mbstate_t>)
3149         (codecvt_byname<char16_t, char, mbstate_t>)
3150         (codecvt_byname<char32_t, char, mbstate_t>): Remove dependency
3151         on _GLIBCXX_USE_C99_STDINT_TR1.
3152         * include/bits/locale_facets.h [!_GLIBCXX_USE_C99_STDINT_TR1]
3153         (_GLIBCXX_NUM_UNICODE_FACETS): Likewise.
3154         * include/bits/stringfwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
3155         (char_traits<char16_t>, char_traits<char32_t>)
3156         (basic_string<char16_t>, basic_string<char32_t>): Remove dependency
3157         on _GLIBCXX_USE_C99_STDINT_TR1.
3158         * include/experimental/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
3159         (u16string_view, u32string_view, hash<u16string_view>)
3160         (hash<u32string_view>, operator""sv(const char16_t, size_t))
3161         (operator""sv(const char32_t, size_t)): Likewise.
3162         * include/ext/vstring.h [!_GLIBCXX_USE_C99_STDINT_TR1]
3163         (hash<__u16vstring>, hash<__u32vstring>): Likewise.
3164         * include/ext/vstring_fwd.h [!_GLIBCXX_USE_C99_STDINT_TR1]
3165         (__u16vstring, __u16sso_string, __u16rc_string, __u32vstring)
3166         (__u32sso_string, __u32rc_string): Likewise.
3167         * include/std/codecvt [!_GLIBCXX_USE_C99_STDINT_TR1] (codecvt_mode)
3168         (codecvt_utf8, codecvt_utf16, codecvt_utf8_utf16): Likewise.
3169         * include/std/string_view [!_GLIBCXX_USE_C99_STDINT_TR1]
3170         (u16string_view, u32string_view, hash<u16string_view>)
3171         (hash<u32string_view>, operator""sv(const char16_t, size_t))
3172         (operator""sv(const char32_t, size_t)): Likewise.
3173         * src/c++11/codecvt.cc: Likewise.
3174         * src/c++98/locale_init.cc: Likewise.
3175         * src/c++98/localename.cc: Likewise.
3176
3177         * include/bits/atomic_futex.h [!_GLIBCXX_USE_C99_STDINT_TR1]
3178         (__atomic_futex_unsigned_base): Remove dependency on
3179         _GLIBCXX_USE_C99_STDINT_TR1 macro.
3180         * include/bits/unique_lock.h [!_GLIBCXX_USE_C99_STDINT_TR1]
3181         (unique_lock): Remove dependency on _GLIBCXX_USE_C99_STDINT_TR1.
3182         * include/c_global/cstdint [!_GLIBCXX_USE_C99_STDINT_TR1] (intmax_t)
3183         (uintmax_t): Define using predefined macros.
3184         * include/std/chrono [!_GLIBCXX_USE_C99_STDINT_TR1] (duration)
3185         (time_point, system_clock, high_resolution_clock, steady_clock): Remove
3186         dependency on _GLIBCXX_USE_C99_STDINT_TR1 macro.
3187         (nanoseconds, microseconds, milliseconds, seconds, minutes, hours):
3188         [!_GLIBCXX_USE_C99_STDINT_TR1]: Define using __INT64_TYPE__ or
3189         long long when <stdint.h> is not usable.
3190         * include/std/condition_variable [!_GLIBCXX_USE_C99_STDINT_TR1]
3191         (condition_variable, condition_variable_any): Remove dependency on
3192         _GLIBCXX_USE_C99_STDINT_TR1.
3193         * include/std/future [!_GLIBCXX_USE_C99_STDINT_TR1] (future, promise)
3194         (packaged_task, async): Likewise.
3195         * include/std/mutex [!_GLIBCXX_USE_C99_STDINT_TR1] (recursive_mutex)
3196         (timed_mutex, recursive_timed_mutex, try_lock, lock, scoped_lock)
3197         (once_flag, call_once): Likewise.
3198         * include/std/ratio [!_GLIBCXX_USE_C99_STDINT_TR1] (ratio): Likewise.
3199         * include/std/shared_mutex [!_GLIBCXX_USE_C99_STDINT_TR1]
3200         (shared_mutex, shared_timed_mutex, shared_lock): Likewise.
3201         * include/std/thread [!_GLIBCXX_USE_C99_STDINT_TR1] (thread)
3202         (this_thread::get_id, this_thread::yield, this_thread::sleep_for)
3203         (this_thread::sleep_until): Likewise.
3204         * src/c++11/chrono.cc: Remove dependency on
3205         _GLIBCXX_USE_C99_STDINT_TR1 macro.
3206         * src/c++11/condition_variable.cc: Likewise.
3207         * src/c++11/futex.cc: Likewise.
3208         * src/c++11/future.cc: Likewise.
3209         * src/c++11/mutex.cc: Likewise.
3210         * src/c++11/thread.cc: Likewise.
3211         * testsuite/20_util/duration/literals/range_neg.cc: Adjust dg-error.
3212         * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
3213         * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
3214         * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
3215         * testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Likewise.
3216         * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Likewise.
3217
3218 2018-07-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
3219
3220         PR libstdc++/77691
3221         * testsuite/experimental/memory_resource/new_delete_resource.cc:
3222         xfail execution on 32-bit Solaris/x86.
3223
3224 2018-07-26  Marc Glisse  <marc.glisse@inria.fr>
3225
3226         * include/bits/stl_vector.h (_Vector_impl_data::_M_copy_data): New.
3227         (_Vector_impl_data::_M_swap_data): Use _M_copy_data.
3228         (vector::_M_move_assign): Reorder the swaps.
3229
3230 2018-07-26  Jonathan Wakely  <jwakely@redhat.com>
3231
3232         PR libstdc++/86676
3233         * testsuite/20_util/monotonic_buffer_resource/release.cc: Request
3234         same alignment for post-release allocation.
3235
3236 2018-07-25  Jonathan Wakely  <jwakely@redhat.com>
3237
3238         PR libstdc++/86676
3239         * testsuite/20_util/monotonic_buffer_resource/release.cc: Allow for
3240         buffer being misaligned and so returned pointer not being at start.
3241
3242         * include/experimental/memory_resource: Include <cstddef> header.
3243
3244         * acinclude.m4 (glibcxx_SUBDIRS): Add src/c++17.
3245         * src/Makefile.am: Add comment.
3246         * src/c++17/Makefile.in: Regenerate.
3247
3248         * include/Makefile.am: Add new <bits/unique_lock.h> header.
3249         * include/Makefile.in: Regenerate.
3250         * include/bits/std_mutex.h [!_GLIBCXX_USE_C99_STDINT_TR1] (mutex)
3251         (lock_guard): Define independent of _GLIBCXX_USE_C99_STDINT_TR1.
3252         (unique_lock): Move definition to ...
3253         * include/bits/unique_lock.h: New header.
3254         [!_GLIBCXX_USE_C99_STDINT_TR1] (unique_lock): Define unconditionally.
3255         [_GLIBCXX_USE_C99_STDINT_TR1] (unique_lock(mutex_type&, time_point))
3256         (unique_lock(mutex_type&, duration), unique_lock::try_lock_until)
3257         (unique_lock::try_lock_for): Define only when <chrono> is usable.
3258         * include/std/condition_variable: Include <bits/unique_lock.h>.
3259         * include/std/mutex: Likewise.
3260
3261 2018-07-24  Jonathan Wakely  <jwakely@redhat.com>
3262
3263         * config/abi/pre/gnu.ver: Export new symbols.
3264         * configure: Regenerate.
3265         * include/Makefile.am: Add new <memory_resource> header.
3266         * include/Makefile.in: Regenerate.
3267         * include/precompiled/stdc++.h: Include <memory_resource> for C++17.
3268         * include/std/memory_resource: New header.
3269         (memory_resource, polymorphic_allocator, new_delete_resource)
3270         (null_memory_resource, set_default_resource, get_default_resource)
3271         (pool_options, monotonic_buffer_resource): Define.
3272         * src/Makefile.am: Add c++17 directory.
3273         * src/Makefile.in: Regenerate.
3274         * src/c++11/Makefile.am: Fix comment.
3275         * src/c++17/Makefile.am: Add makefile for new sub-directory.
3276         * src/c++17/Makefile.in: Generate.
3277         * src/c++17/memory_resource.cc: New.
3278         (newdel_res_t, null_res_t, constant_init, newdel_res, null_res)
3279         (default_res, new_delete_resource, null_memory_resource)
3280         (set_default_resource, get_default_resource): Define.
3281         * testsuite/20_util/memory_resource/1.cc: New test.
3282         * testsuite/20_util/memory_resource/2.cc: New test.
3283         * testsuite/20_util/monotonic_buffer_resource/1.cc: New test.
3284         * testsuite/20_util/monotonic_buffer_resource/allocate.cc: New test.
3285         * testsuite/20_util/monotonic_buffer_resource/deallocate.cc: New test.
3286         * testsuite/20_util/monotonic_buffer_resource/release.cc: New test.
3287         * testsuite/20_util/monotonic_buffer_resource/upstream_resource.cc:
3288         New test.
3289         * testsuite/20_util/polymorphic_allocator/1.cc: New test.
3290         * testsuite/20_util/polymorphic_allocator/resource.cc: New test.
3291         * testsuite/20_util/polymorphic_allocator/select.cc: New test.
3292         * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource):
3293         Define concrete memory resource for testing.
3294         (__gnu_test::default_resource_mgr): Define RAII helper for changing
3295         default resource.
3296
3297         PR libstdc++/86658
3298         * include/bits/stl_algobase.h (__niter_wrap<_Iterator>): Pass unused
3299         parameter by reference, to avoid copying invalid iterators.
3300         * testsuite/25_algorithms/copy/86658.cc: New test.
3301
3302         * include/std/bit (__countl_zero, __countr_zero, __popcount): Use
3303         local variables for number of digits instead of type aliases.
3304         (__log2p1): Remove redundant branch also checked in __countl_zero.
3305
3306         * include/bits/uses_allocator.h (__is_erased_or_convertible): Reorder
3307         conditions. Add comments.
3308         * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error line.
3309         * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
3310         * testsuite/20_util/scoped_allocator/69293_neg.cc: Likewise.
3311
3312         * include/bits/uses_allocator.h (__is_erased_or_convertible): Remove.
3313         (__uses_allocator_helper): Check conditions directly instead of
3314         using __is_erased_or_convertible.
3315
3316         * include/experimental/memory_resource: Adjust comments and
3317         whitespace.
3318         (__resource_adaptor_imp): Add second template parameter for type of
3319         memory resource base class.
3320         (memory_resource): Define default constructor, destructor, copy
3321         constructor and copy assignment operator as defaulted.
3322
3323         PR libstdc++/70966
3324         * include/experimental/memory_resource (__get_default_resource): Use
3325         placement new to create an object with dynamic storage duration.
3326
3327 2018-07-23  Jonathan Wakely  <jwakely@redhat.com>
3328
3329         PR libstdc++/70940
3330         * include/experimental/memory_resource
3331         (__resource_adaptor_common::_AlignMgr::_M_unadjust): Add assertion.
3332         (__resource_adaptor_common::__guaranteed_alignment): New helper to
3333         give maximum alignment an allocator guarantees. Specialize for known
3334         allocators using new and malloc.
3335         (__resource_adaptor_imp::do_allocate): Use __guaranteed_alignment.
3336         (__resource_adaptor_imp::do_deallocate): Likewise.
3337         * testsuite/experimental/memory_resource/new_delete_resource.cc:
3338         Check that new and delete are called with expected sizes.
3339
3340 2018-07-20  Jonathan Wakely  <jwakely@redhat.com>
3341
3342         PR libstdc++/86595
3343         * include/bits/fs_dir.h (directory_entry::refresh(error_code&)): Add
3344         noexcept.
3345
3346 2018-07-20  Fangrui Song  <maskray@google.com>
3347
3348         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Use
3349         _GLIBCXX_VISIBILITY(default).
3350
3351 2018-07-20  Jonathan Wakely  <jwakely@redhat.com>
3352
3353         PR libstdc++/86603
3354         * include/std/version: Move __cpp_lib_list_remove_return_type macro.
3355
3356 2018-07-19  Jonathan Wakely  <jwakely@redhat.com>
3357
3358         * include/std/type_traits (__is_member_object_pointer_helper): Use
3359         __not_<is_function<_Tp>>::type instead of integral_constant.
3360         (__is_member_function_pointer_helper): Likewise for
3361         is_function<_Tp>::type.
3362         (is_compund): Likewise for __not_<is_fundamental<_Tp>>::type.
3363         (__do_is_nt_destructible_impl): Use __bool_constant and reindent.
3364         (is_trivially_constructible): Remove redundant use of
3365         is_constructible.
3366         (__is_trivially_copy_assignable_impl): Remove redundant use of
3367         is_copy_assignable.
3368         (__is_trivially_move_assignable_impl): Remove redundant use of
3369         is_move_assignable.
3370         (is_trivially_destructible): Use __bool_constant.
3371         * testsuite/20_util/is_trivially_assignable/value.cc: Add some more
3372         tests for scalar types.
3373
3374 2018-07-19  Glen Joseph Fernandes  <glenjofe@gmail.com>
3375
3376         * include/bits/stl_algobase.h (__copy_move_a): Used
3377         __is_trivially_copyable.
3378         (__copy_move_backward_a): Likewise.
3379         * testsuite/20_util/specialized_algorithms/uninitialized_copy/1.cc:
3380         New test.
3381
3382 2018-07-17  Jonathan Wakely  <jwakely@redhat.com>
3383
3384         PR libstdc++/86450
3385         * acinclude.m4 (GLIBCXX_CHECK_COMPILER_FEATURES): Don't define WERROR.
3386         (GLIBCXX_EXPORT_FLAGS): Use -Wabi=2 instead of -Wabi.
3387         * configure: Regenerate.
3388         * configure.ac: Change GLIBCXX_ENABLE_WERROR default to "no".
3389         * doc/Makefile.in: Regenerate.
3390         * fragment.am: Set WERROR_FLAG to -Werror instead of $(WERROR).
3391         * include/Makefile.in: Regenerate.
3392         * libsupc++/Makefile.in: Regenerate.
3393         * po/Makefile.in: Regenerate.
3394         * python/Makefile.in: Regenerate.
3395         * src/Makefile.in: Regenerate.
3396         * src/c++11/Makefile.in: Regenerate.
3397         * src/c++11/debug.cc: Use diagnostic pragmas to suppress warnings
3398         from -Wabi=2 that don't affect exported symbols.
3399         * src/c++98/Makefile.in: Regenerate.
3400         * src/filesystem/Makefile.in: Regenerate.
3401         * testsuite/Makefile.in: Regenerate.
3402
3403         * src/c++11/compatibility-thread-c++0x.cc [_GLIBCXX_SHARED]
3404         (_Async_state_common::_M_join): Simplify use of std::call_once and
3405         corresponding explicit instantiation.
3406         (_Maybe_wrap_member_pointer, _Bind_simple, _Bind_simple_helper)
3407         (__bind_simple): Remove definitions and explicit instantiation that
3408         are not required by exported symbols.
3409
3410 2018-07-16  Jonathan Wakely  <jwakely@redhat.com>
3411
3412         * scripts/create_testsuite_files: Fix typo in comment.
3413
3414         PR libstdc++/86537
3415         * include/bits/shared_ptr.h (less<shared_ptr<_Tp>>): Remove
3416         non-standard partial specialization.
3417         * include/bits/shared_ptr_base.h (_Sp_less): Remove class definition.
3418         (less<__shared_ptr<_Tp, _Lp>): Remove partial specialization.
3419         * testsuite/20_util/shared_ptr/comparison/86537.cc: New test.
3420
3421 2018-07-16  Andreas Krebbel  <krebbel@linux.ibm.com>
3422
3423         * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update.
3424         * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Update.
3425         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
3426
3427 2018-07-06  François Dumont  <fdumont@gcc.gnu.org>
3428
3429         * include/debug/functions.h (__gnu_debug::__check_string): Move...
3430         * include/debug/string (__gnu_debug::__check_string): ... here.
3431         (_GLIBCXX_DEBUG_VERIFY_STR_COND_AT): New.
3432         (__glibcxx_check_string_n_constructor): New.
3433         (__gnu_debug::basic_string<>(const _CharT*, size_type, const _Alloc&)):
3434         Use latter.
3435         (__glibcxx_check_string_constructor): New.
3436         (__gnu_debug::basic_string<>(const _CharT*, const _Alloc&)):
3437         Use latter.
3438         * testsuite/21_strings/basic_string/debug/1_neg.cc: New.
3439         * testsuite/21_strings/basic_string/debug/2_neg.cc: New.
3440
3441 2018-07-06  Jonathan Wakely  <jwakely@redhat.com>
3442
3443         PR libstdc++/84928 use std::move in <numeric> algorithms
3444         * include/bits/stl_numeric.h (_GLIBCXX_MOVE_IF_20): Define macro to
3445         conditionally move, according to __cplusplus value.
3446         (accumulate, inner_product, partial_sum, adjacent_difference): Use
3447         _GLIBCXX_MOVE_IF_20.
3448         * testsuite/26_numerics/accumulate/lwg2055.cc: New test.
3449         * testsuite/26_numerics/adjacent_difference/lwg2055.cc: New test.
3450         * testsuite/26_numerics/inner_product/lwg2055.cc: New test.
3451         * testsuite/26_numerics/partial_sum/lwg2055.cc: New test.
3452
3453         * config/abi/pre/gnu.ver: Use wildcards to combine related patterns.
3454
3455         P0935R0 Eradicating unnecessarily explicit default constructors
3456         * config/abi/pre/gnu.ver: Tighten existing patterns and export new
3457         default constructor symbols.
3458         * include/std/sstream (basic_stringbuf, basic_istringstream)
3459         (basic_ostringstream, basic_stringstream): Remove default arguments
3460         from explicit constructors taking ios_base::openmode and add separate
3461         non-explicit default constructors.
3462         * testsuite/27_io/basic_istringstream/cons/default.cc: New.
3463         * testsuite/27_io/basic_ostringstream/cons/default.cc: New.
3464         * testsuite/27_io/basic_stringstream/cons/default.cc: New.
3465         * testsuite/27_io/basic_stringbuf/cons/char/default.cc: New.
3466         * testsuite/27_io/basic_stringbuf/cons/wchar_t/default.cc: New.
3467
3468         * include/std/variant (__accepted_index): Use void_t.
3469
3470 2018-07-05  Jonathan Wakely  <jwakely@redhat.com>
3471
3472         PR libstdc++/85831
3473         * config/abi/pre/gnu.ver: Export move constructors and move
3474         assignment operators for std::logic_error and std::runtime_error.
3475         * include/std/stdexcept: Use _GLIBCXX_NOTHROW instead of
3476         _GLIBCXX_USE_NOEXCEPT.
3477         (logic_error, runtime_error): Declare move constructors and move
3478         assignment operators. When not declared already, define copy
3479         constructors and copy assignment operators as explicit-defaulted.
3480         (domain_error, invalid_argument, length_error, out_of_range)
3481         (overflow_error, underflow_error): Define move constructors and move
3482         assignment operators as explicitly-defaulted.
3483         * libsupc++/exception.h (exception): Likewise.
3484         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Define
3485         move constructors and move assignment operators as defaulted.
3486         * testsuite/19_diagnostics/stdexcept.cc: Check that constructors and
3487         assignment operators are defined.
3488
3489         * testsuite/21_strings/basic_string/cons/char/deduction.cc: XFAIL for
3490         COW strings.
3491         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
3492         Likewise.
3493         * testsuite/21_strings/basic_string/requirements/
3494         explicit_instantiation/debug.cc: Likewise.
3495
3496         PR libstdc++/58265
3497         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
3498         (basic_string::assign(basic_string&&)): Add conditional noexcept
3499         depending on the allocator's is_always_equal property (LWG 2063).
3500         * testsuite/21_strings/basic_string/modifiers/assign/char/
3501         move_assign.cc: Check for non-throwing exception specification.
3502         * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
3503         move_assign.cc: Likewise.
3504
3505         PR libstdc++/58265
3506         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
3507         [_GLIBCXX_FULLY_DYNAMIC_STRING==0] (basic_string::basic_string()):
3508         Add GLIBCXX_NOEXCEPT.
3509         (basic_string::operator=(basic_string&&)): Add _GLIBCXX_NOEXCEPT_IF
3510         to depend on the allocator's is_always_equal property (LWG 2063).
3511         (basic_string::swap(basic_string&)): Likewise.
3512         * include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI]
3513         (basic_string::swap(basic_string&)): Likewise.
3514         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc:
3515         Check is_nothrow_move_assignable.
3516         * testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc:
3517         Check is_nothrow_move_assignable.
3518         * testsuite/21_strings/basic_string/cons/char/
3519         noexcept_move_construct.cc: Likewise.
3520         * testsuite/21_strings/basic_string/cons/wchar_t/
3521         noexcept_move_construct.cc: Likewise.
3522
3523 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
3524
3525         P0646R1 Improving the Return Value of Erase-Like Algorithms I
3526         * include/bits/forward_list.h (__cpp_lib_list_remove_return_type):
3527         Define.
3528         (forward_list::__remove_return_type): Define typedef as size_type or
3529         void, according to __cplusplus value.
3530         (_GLIBCXX_FWDLIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
3531         empty, according to __cplusplus value.
3532         (forward_list::remove, forward_list::unique): Use typedef and macro
3533         to change return type and add abi-tag for C++2a.
3534         (forward_list::remove_if<Pred>, forward_list::unique<BinPred>): Use
3535         typedef to change return type for C++2a.
3536         * include/bits/forward_list.tcc (_GLIBCXX20_ONLY): Define macro.
3537         (forward_list::remove, forward_list::remove_if<Pred>)
3538         (forward_list::unique<BinPred>): Return number of removed elements
3539         for C++2a.
3540         * include/bits/list.tcc (_GLIBCXX20_ONLY): Define macro.
3541         (list::remove, list::unique, list::remove_if<Predicate>)
3542         (list::unique<BinaryPredicate>): Return number of removed elements
3543         for C++2a.
3544         * include/bits/stl_list.h (__cpp_lib_list_remove_return_type): Define.
3545         (list::__remove_return_type): Define typedef as size_type or
3546         void, according to __cplusplus value.
3547         (_GLIBCXX_LIST_REMOVE_RETURN_TYPE_TAG): Define macro as abi-tag or
3548         empty, according to __cplusplus value.
3549         (list::remove, list::unique): Use typedef and macro to change return
3550         type and add abi-tag for C++2a.
3551         (list::remove_if<Predicate>, list::unique<BinaryPredicate>): Use
3552         typedef to change return type for C++2a.
3553         * include/std/version (__cpp_lib_list_remove_return_type): Define.
3554         * testsuite/23_containers/forward_list/operations/
3555         remove_cxx20_return.cc: New.
3556         * testsuite/23_containers/forward_list/operations/
3557         unique_cxx20_return.cc: New.
3558
3559         P0458R2 Checking for Existence of an Element in Associative Containers
3560         * include/bits/stl_map.h (map::contains): Add for C++2a.
3561         * include/bits/stl_multimap.h (multimap::contains): Likewise.
3562         * include/bits/stl_multiset.h (multiset::contains): Likewise.
3563         * include/bits/stl_set.h (set::contains): Likewise.
3564         * include/bits/stl_tree.h (__has_is_transparent_t): Define alias.
3565         (_Rb_tree::_M_find_tr, _Rb_tree::_M_count_tr)
3566         (_Rb_tree::_M_lower_bound_tr, _Rb_tree::_M_upper_bound_tr)
3567         (_Rb_tree::_M_equal_range_tr): Use __has_is_transparent_t.
3568         * include/bits/unordered_map.h (unordered_map::contains)
3569         (unordered_multimap::contains): Add for C++2a.
3570         * include/bits/unordered_set.h (unordered_set::contains)
3571         (unordered_multiset::contains): Likewise.
3572         * testsuite/23_containers/map/operations/contains.cc: New.
3573         * testsuite/23_containers/multimap/operations/contains.cc: New.
3574         * testsuite/23_containers/multiset/operations/contains.cc: New.
3575         * testsuite/23_containers/set/operations/contains.cc: New.
3576         * testsuite/23_containers/unordered_map/operations/contains.cc: New.
3577         * testsuite/23_containers/unordered_multimap/operations/contains.cc:
3578         New.
3579         * testsuite/23_containers/unordered_multiset/operations/contains.cc:
3580         New.
3581         * testsuite/23_containers/unordered_set/operations/contains.cc: New.
3582
3583 2018-07-04  François Dumont  <fdumont@gcc.gnu.org>
3584
3585         PR libstdc++/86272
3586         * include/debug/string
3587         (__gnu_debug::basic_string<>::insert<_Ite>(const_iterator, _Ite, _Ite)):
3588         Use __glibcxx_check_insert_range.
3589         * 21_strings/basic_string/cons/char/1.cc: Adapt test to use
3590         __gnu_debug::string when _GLIBCXX_DEBUG.
3591         * 21_strings/basic_string/init-list.cc: Likewise.
3592         * 21_strings/basic_string/modifiers/insert/char/1.cc: Likewise.
3593         * 21_strings/basic_string/modifiers/insert/char/2.cc: Likewise.
3594         * 21_strings/basic_string/modifiers/insert/char/83328.cc: Likewise.
3595         * 21_strings/basic_string/types/1.cc: Likewise.
3596
3597 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
3598
3599         * testsuite/25_algorithms/make_heap/complexity.cc: Require effective
3600         target for std::random_device.
3601         * testsuite/26_numerics/random/random_device/cons/default.cc:
3602         Likewise.
3603         * testsuite/experimental/algorithm/sample-2.cc: Likewise.
3604         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
3605         * testsuite/experimental/random/randint.cc: Likewise.
3606         * testsuite/lib/libstdc++.exp
3607         (check_effective_target_random_device): New proc.
3608
3609 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
3610             Jakub Jelinek  <jakub@redhat.com>
3611
3612         * include/std/bit (__rotl, __rotr): Fix for non-power of two sizes.
3613
3614 2018-07-04  Jonathan Wakely  <jwakely@redhat.com>
3615
3616         PR libstdc++/86398
3617         * include/std/type_traits (is_trivially_constructible): Check
3618         is_constructible before __is_trivially_constructible.
3619         * testsuite/20_util/is_trivially_constructible/value.cc: Add more
3620         tests, including negative cases.
3621         * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Use
3622         zero for dg-error lineno.
3623         * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
3624         Likewise.
3625
3626         * include/std/bit (__rotl, __rotr): Avoid branch.
3627         (_If_is_unsigned_integer): Use remove_cv_t.
3628         * testsuite/26_numerics/bit/bitops.count/popcount.cc: New.
3629
3630 2018-07-03  Jonathan Wakely  <jwakely@redhat.com>
3631
3632         P0556R3 Integral power-of-2 operations, P0553R2 Bit operations
3633         * include/Makefile.am: Add new header.
3634         * include/Makefile.in: Regenerate.
3635         * include/precompiled/stdc++.h: Include new header.
3636         * include/std/bit: New header.
3637         (__rotl, __rotr, __countl_zero, __countl_one, __countr_zero)
3638         (__countr_one, __popcount, __ispow2, __ceil2, __floor2, __log2p1):
3639         Define for C++14.
3640         [!__STRICT_ANSI__] (rotl, rotr, countl_zero, countl_one, countr_zero)
3641         (countr_one, popcount): Define for C++2a. Also overload for std::byte.
3642         (ispow2, ceil2, floor2, log2p1): Define for C++2a.
3643         [!__STRICT_ANSI__] (ispow2, ceil2, floor2, log2p1): Overload for
3644         std::byte.
3645         * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: New.
3646         * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: New.
3647         * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: New.
3648         * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: New.
3649         * testsuite/26_numerics/bit/bitops.rot/rotl.cc: New.
3650         * testsuite/26_numerics/bit/bitops.rot/rotr.cc: New.
3651         * testsuite/26_numerics/bit/bitops.count/countl_one.cc: New.
3652         * testsuite/26_numerics/bit/bitops.count/countl_zero.cc: New.
3653         * testsuite/26_numerics/bit/bitops.count/countr_one.cc: New.
3654         * testsuite/26_numerics/bit/bitops.count/countr_zero.cc: New.
3655
3656         * include/bits/alloc_traits.h: Remove redundant preprocessor
3657         condition.
3658
3659 2018-07-03  François Dumont  <fdumont@gcc.gnu.org>
3660
3661         * include/bits/stl_algobase.h (__niter_wrap): New.
3662         (__copy_move_a2(_II, _II, _OI)): Use latter.
3663         (__copy_move_backward_a2(_BI1, _BI1, _BI2)): Likewise.
3664         (fill_n(_OI, _Size, const _Tp&)): Likewise.
3665         (equal(_II1, _II1, _II2)): Use __glibcxx_requires_can_increment.
3666         * include/debug/stl_iterator.h
3667         (std::__niter_base(const __gnu_cxx::_Safe_iterator<
3668         __gnu_cxx::__normal_iterator<>, _Sequence>&)): New declaration.
3669         * include/debug/vector (__niter_base(const __gnu_cxx::_Safe_iterator<
3670         __gnu_cxx::__normal_iterator<>, _Sequence>&)): New.
3671
3672 2018-07-02  Jonathan Wakely  <jwakely@redhat.com>
3673
3674         P0758R1 Implicit conversion traits
3675         * include/std/type_traits [__cplusplus > 201703]
3676         (__is_convertible_helper::__is_nothrow_type): Define new member.
3677         (__is_convertible_helper<_From, _To, false>::__test_aux1): Add
3678         noexcept.
3679         (__is_convertible_helper<_From, _To, false>::__test_nothrow)
3680         (__is_convertible_helper<_From, _To, false>::__is_nothrow_type): Add
3681         new members.
3682         (is_nothrow_convertible, is_nothrow_convertible_v): Define for C++2a.
3683         * testsuite/20_util/is_nothrow_convertible/value.cc: New.
3684         * testsuite/20_util/is_nothrow_convertible/requirements/
3685         explicit_instantiation.cc: New.
3686         * testsuite/20_util/is_nothrow_convertible/requirements/typedefs.cc:
3687         New.
3688
3689         P0887R1 The identity metafunction
3690         * include/std/type_traits (type_identity, type_identity_t): Define
3691         for C++2a.
3692         * testsuite/20_util/type_identity/requirements/alias_decl.cc: New.
3693         * testsuite/20_util/type_identity/requirements/
3694         explicit_instantiation.cc:New.
3695         * testsuite/20_util/type_identity/requirements/typedefs.cc: New.
3696
3697         * include/bits/regex.h (sub_match::operator string_type): Call str().
3698         (sub_match::compare): Use _M_str() instead of str().
3699         (sub_match::_M_compare): New public function.
3700         (sub_match::__string_view): New helper type.
3701         (sub_match::_M_str): New overloaded functions to avoid creating a
3702         string_type object when not needed.
3703         (operator==, operator!=, operator<, operator>, operator<=, operator>=):
3704         Use sub_match::_M_compare instead of creating string_type objects.
3705         Fix Doxygen comments.
3706         * include/bits/regex_compiler.h (__has_contiguous_iter): Remove.
3707         (__is_contiguous_normal_iter): Rename to __is_contiguous_iter and
3708         simplify.
3709         (__enable_if_contiguous_iter, __disable_if_contiguous_iter): Use
3710         __enable_if_t.
3711         * include/std/type_traits (__enable_if_t): Define for C++11.
3712         * testsuite/28_regex/sub_match/compare.cc: New.
3713         * testsuite/util/testsuite_iterators.h (remove_cv): Add transformation
3714         trait.
3715         (input_iterator_wrapper): Use remove_cv for value_type argument of
3716         std::iterator base class.
3717
3718 2018-06-29  Jonathan Wakely  <jwakely@redhat.com>
3719
3720         * testsuite/20_util/add_rvalue_reference/requirements/alias_decl.cc:
3721         Add whitespace to dejagnu directive.
3722         * testsuite/23_containers/array/element_access/at_neg.cc: Likewise.
3723
3724 2018-06-27  François Dumont  <fdumont@gcc.gnu.org>
3725
3726         * include/bits/stl_vector.h
3727         (struct _Vector_base<>::_Vector_impl_data): New.
3728         (struct _Vector_base<>::_Vector_impl): Inherit from latter.
3729         (_Vector_base<>::_Vector_impl::_M_swap_data): Move...
3730         (_Vector_base<>::_Vector_impl_data::_M_swap_data): ...here.
3731         (_Vector_base<>::_Vector_impl()): Add noexcept qualification.
3732         (_Vector_base<>::_Vector_impl(_Vector_impl&&)): New.
3733         (_Vector_base<>::_Vector_impl(_Tp_alloc_type&&, _Vector_impl&&)): New.
3734         (_Vector_base(const allocator_type&, _Vector_base&&)): New, use latter.
3735         (_Vector_base()): Default.
3736         (_Vector_base(_Vector_base&&)): Default.
3737         (_Vector_base(size_t)) [_GLIBCXX_INLINE_VERSION]: Delete.
3738         (_Vector_base(_Tp_alloc_type&&)) [_GLIBCXX_INLINE_VERSION]: Delete.
3739         (_Vector_base::_M_create_storage(size_t)): Make protected.
3740         (vector()): Default.
3741         (vector(vector&&)): Default.
3742         (vector(vector&&, const allocator_type&, true_type)): New.
3743         (vector(vector&&, const allocator_type&, false_type)): New.
3744         (vector(vector&&, const allocator_type&)): Use latters.
3745         (vector(_InputIte, _InputIte, const allocator_type&)): Call
3746         _M_range_initialize directly.
3747         * include/debug/vector
3748         (vector(vector&&, const allocator_type&)): Add noexcept qualification.
3749         * testsuite/23_containers/vector/allocator/default_init.cc: New.
3750         * testsuite/23_containers/vector/cons/noexcept_move_construct.cc: Add
3751         static assertions.
3752
3753 2018-06-27  Jonathan Wakely  <jwakely@redhat.com>
3754
3755         * include/bits/cpp_type_traits.h [__cplusplus >= 201703]
3756         (__is_byte<byte>): Define specialization for std::byte.
3757
3758         PR libstdc++/86138
3759         * include/bits/basic_string.tcc: [_GLIBCXX_EXTERN_TEMPLATE < 0]
3760         Declare explicit instantiations of COW empty reps and I/O functions.
3761
3762 2018-06-26  David Edelsohn  <dje.gcc@gmail.com>
3763
3764         * testsuite/experimental/algorithm/sample-2.cc: Add TLS DejaGNU
3765         directives.
3766         * testsuite/experimental/algorithm/shuffle.cc: Likewise.
3767
3768 2018-06-26  Jonathan Wakely  <jwakely@redhat.com>
3769
3770         * include/bits/regex.tcc (regex_iterator::operator==): Add missing
3771         noexcept.
3772
3773 2018-06-25  Jonathan Wakely  <jwakely@redhat.com>
3774
3775         PR libstdc++/86112
3776         * python/libstdcxx/v6/printers.py (add_one_template_type_printer):
3777         Replace dict comprehension.
3778
3779         PR libstdc++/81092
3780         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
3781
3782         PR libstdc++/86292
3783         * include/bits/stl_vector.h (vector::_M_range_initialize<InputIter>):
3784         Add try-catch block.
3785         * testsuite/23_containers/vector/cons/86292.cc: New.
3786
3787         * doc/xml/manual/status_cxx2017.xml: Document N4531 status.
3788
3789         * include/experimental/algorithm (sample, shuffle): Add new overloads
3790         using per-thread random number engine.
3791         * testsuite/experimental/algorithm/sample.cc: Simpify and reduce
3792         dependencies by using __gnu_test::test_container.
3793         * testsuite/experimental/algorithm/sample-2.cc: New.
3794         * testsuite/experimental/algorithm/shuffle.cc: New.
3795
3796 2018-06-22  Jonathan Wakely  <jwakely@redhat.com>
3797
3798         * config/abi/pre/gnu.ver: Fix __cxx11::basic_string patterns for
3799         different size_t mangling on 32-bit targets.
3800
3801         PR libstdc++/86280
3802         * include/experimental/memory_resource
3803         (__resource_adaptor_common::_AlignMgr::_M_token_size): Use type large
3804         enough for result of left shift.
3805
3806         PR libstdc++/86138
3807         * include/bits/basic_string.tcc:
3808         [__cplusplus > 201402 && !_GLIBCXX_USE_CXX11_ABI]
3809         (basic_string<char>::_Rep::_S_empty_rep_storage)
3810         (basic_string<wchar_t>::_Rep::_S_empty_rep_storage): Add explicit
3811         instantiation declarations.
3812         [__cplusplus > 201402] (operator>>, operator<<, getline): Re-enable
3813         explicit instantiation declarations.
3814         * testsuite/21_strings/basic_string/cons/char/86138.cc: New.
3815         * testsuite/21_strings/basic_string/cons/wchar_t/86138.cc: New.
3816
3817 2018-06-21  Jonathan Wakely  <jwakely@redhat.com>
3818
3819         PR libstdc++/83328
3820         * acinclude.m4 (libtool_VERSION): Bump to 6:26:0.
3821         * config/abi/pre/gnu.ver: Add GLIBCXX_3.4.26 and export new symbol.
3822         * configure: Regenerate.
3823         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI]
3824         (basic_string::insert(const_iterator, initializer_list<C>)): Add.
3825         [_GLIBCXX_USE_CXX11_ABI && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
3826         (basic_string::insert(iterator, initializer_list<C>)): Suppress
3827         definition.
3828         * include/debug/string (basic_string::insert(iterator, C)): Change
3829         first parameter to const_iterator.
3830         (basic_string::insert(iterator, size_type, C)): Likewise. Change
3831         return type to iterator.
3832         (basic_string::insert(iterator, InputIterator, InputIterator)):
3833         Likewise.
3834         (basic_string::insert(iterator, initializer_list<C>)): Change first
3835         parameter to const_iterator and return type to iterator.
3836         * src/c++11/string-inst.cc: Extend comment.
3837         * testsuite/21_strings/basic_string/modifiers/insert/char/83328.cc:
3838         New.
3839         * testsuite/21_strings/basic_string/modifiers/insert/wchar_t/83328.cc:
3840         New.
3841         * testsuite/util/testsuite_abi.cc: Add new symbol version.
3842
3843         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
3844
3845         PR libstdc++/70940
3846         * include/experimental/memory_resource
3847         (__resource_adaptor_imp::do_deallocate): Add missing return.
3848         * testsuite/experimental/memory_resource/new_delete_resource.cc: New.
3849         * testsuite/experimental/memory_resource/resource_adaptor.cc: Test
3850         resource_adaptor with std::allocator, __gnu_cxx::new_allocator and
3851         __gnu_cxx::malloc_allocator.
3852
3853         PR libstdc++/70940
3854         * include/experimental/memory_resource (__resource_adaptor_common):
3855         New base class.
3856         (__resource_adaptor_common::_AlignMgr): Helper for obtaining aligned
3857         pointer from unaligned, and vice versa.
3858         (__resource_adaptor_imp::do_allocate): Use _AlignMgr to adjust
3859         allocated pointer to meet alignment request.
3860         (__resource_adaptor_imp::do_deallocate): Use _AlignMgr to retrieve
3861         original pointer for deallocation.
3862         (__resource_adaptor_imp::do_is_equal): Reformat.
3863         (__resource_adaptor_imp::_S_aligned_size): Remove.
3864         (__resource_adaptor_imp::_S_supported): Remove.
3865         (new_delete_resource): Use __gnu_cxx::new_allocator.
3866         * testsuite/experimental/memory_resource/resource_adaptor.cc: Test
3867         extended alignments and use debug_allocator to check for matching
3868         allocate/deallocate pairs.
3869
3870 2018-06-21  François Dumont  <fdumont@gcc.gnu.org>
3871
3872         * include/debug/safe_iterator.h
3873         (_Safe_iterator<>(const _Safe_iterator<_MutableIterator,>& __x)):
3874         Compare __x base iterator with a value-initialized iterator of the
3875         same type.
3876
3877 2018-06-20  Jonathan Wakely  <jwakely@redhat.com>
3878
3879         PR libstdc++/70966
3880         * include/experimental/memory_resource (__resource_adaptor_imp): Add
3881         static assertions to enforce requirements on pointer types.
3882         (__resource_adaptor_imp::get_allocator()): Add noexcept.
3883         (new_delete_resource, null_memory_resource): Return address of an
3884         object with dynamic storage duration.
3885         (__null_memory_resource): Remove.
3886         * testsuite/experimental/memory_resource/70966.cc: New.
3887
3888         * testsuite/20_util/duration/arithmetic/dr3050.cc: Add new test
3889         missed from recent commit.
3890
3891 2018-06-19  Jonathan Wakely  <jwakely@redhat.com>
3892
3893         * include/std/utility: Remove unused <exception> header.
3894
3895 2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
3896
3897         LWG 2975 ensure construct(pair<T,U>*, ...) used to construct pairs
3898         * include/std/scoped_allocator (__not_pair): Define SFINAE helper.
3899         (construct(_Tp*, _Args&&...)): Remove from overload set when _Tp is
3900         a specialization of std::pair.
3901         * testsuite/20_util/scoped_allocator/construct_pair.cc: Ensure
3902         pair elements are constructed correctly.
3903
3904         LWG 2989 hide path iostream operators from normal lookup
3905         * include/bits/fs_path.h (operator<<, operator>>): Define inline as
3906         friends.
3907         * testsuite/27_io/filesystem/path/io/dr2989.cc: New.
3908
3909         LWG 3050 Fix cv-qualification of convertibility constraints
3910         * include/std/chrono (duration, operator*, operator/, operator%): Use
3911         const-qualified type as source type in is_convertible constraints.
3912         * testsuite/20_util/duration/arithmetic/dr3050.cc: New.
3913         * testsuite/20_util/duration/cons/dr3050.cc: New.
3914         * testsuite/20_util/duration/literals/range.cc: Rename to...
3915         * testsuite/20_util/duration/literals/range_neg.cc: Here. Adjust
3916         dg-error lineno.
3917
3918 2018-06-18  Maya Rashish  <coypu@sdf.org>
3919
3920         * crossconfig.m4: Handle OpenBSD just like NetBSD.
3921         * configure: Rebuilt.
3922
3923 2018-06-18  Jonathan Wakely  <jwakely@redhat.com>
3924
3925         P0754R2 <version> header
3926         * include/Makefile.am: Add new header.
3927         * include/Makefile.in: Regenerate.
3928         * include/bits/c++config: Change doxygen comment to suggest <version>
3929         instead of <iosfwd>.
3930         * include/precompiled/stdc++.h: Include <cwchar> and <cwctype>
3931         unconditionally.  Add C++17 and C++20 headers.
3932         * include/std/version: New header.
3933         * testsuite/17_intro/headers/c++2017/all_attributes.cc: New.
3934         * testsuite/17_intro/headers/c++2017/all_no_exceptions.cc: New.
3935         * testsuite/17_intro/headers/c++2017/all_no_rtti.cc: New.
3936         * testsuite/17_intro/headers/c++2017/all_pedantic_errors.cc: New.
3937         * testsuite/17_intro/headers/c++2017/operator_names.cc: New.
3938         * testsuite/17_intro/headers/c++2017/stdc++.cc: New.
3939         * testsuite/17_intro/headers/c++2017/stdc++_multiple_inclusion.cc:
3940         New.
3941         * testsuite/17_intro/headers/c++2020/all_attributes.cc: New.
3942         * testsuite/17_intro/headers/c++2020/all_no_exceptions.cc: New.
3943         * testsuite/17_intro/headers/c++2020/all_no_rtti.cc: New.
3944         * testsuite/17_intro/headers/c++2020/all_pedantic_errors.cc: New.
3945         * testsuite/17_intro/headers/c++2020/operator_names.cc: New.
3946         * testsuite/17_intro/headers/c++2020/stdc++.cc: New.
3947         * testsuite/17_intro/headers/c++2020/stdc++_multiple_inclusion.cc:
3948         New.
3949         * testsuite/18_support/headers/version/macros.cc: New.
3950         * testsuite/18_support/headers/version/macros.cc: New.
3951
3952         * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Only check when
3953         enable_libstdcxx_filesystem_ts = yes. Check for link, readlink and
3954         symlink.
3955         * config.h.in: Regenerate.
3956         * configure: Regenerate.
3957         * configure.ac: Remove AC_CHECK_FUNCS for link, readlink and symlink.
3958
3959         LWG 3035. std::allocator's constructors should be constexpr
3960         * include/bits/allocator.h (allocator): Add constexpr to constructors
3961         for C++2a. Replace dynamic exception specifications with NOTHROW
3962         macro.
3963         (allocator, operator==, operator!=): Replace USE_NOEXCEPT macro with
3964         NOTHROW.
3965         * include/bits/c++config (_GLIBCXX20_CONSTEXPR): Define.
3966         * include/ext/malloc_allocator.h (malloc_allocator): Add constexpr
3967         to constructors for C++2a.
3968         * include/ext/new_allocator.h (new_allocator): Likewise.
3969
3970 2018-06-16  Jonathan Wakely  <jwakely@redhat.com>
3971
3972         LWG 3076 basic_string CTAD ambiguity
3973         * doc/xml/manual/intro.xml: Document LWG 3076 change.
3974         * include/bits/basic_string.h
3975         [__cpp_deduction_guides && !_GLIBCXX_DEFINING_STRING_INSTANTIATIONS]
3976         (basic_string(const _CharT*, const _Alloc&)): Turn into a function
3977         template constrained by _RequireAllocator.
3978         (basic_string(size_type, _CharT, const _Alloc&)): Likewise.
3979         * src/c++11/string-inst.cc (_GLIBCXX_DEFINING_STRING_INSTANTIATIONS):
3980         Define.
3981         * testsuite/21_strings/basic_string/cons/char/deduction.cc: Test
3982         deduction
3983         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
3984         Likewise.
3985
3986 2018-06-15  Jonathan Wakely  <jwakely@redhat.com>
3987
3988         PR libstdc++/86169
3989         * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
3990         (basic_string::data()): Unshare string.
3991         * testsuite/21_strings/basic_string/operations/data/char/86169.cc:
3992         New.
3993
3994         * include/std/string_view (basic_string_view(const CharT*)): Remove
3995         check for null pointer and add nonnull attribute.
3996         (compare(const CharT*), compare(size_type, size_type, const CharT*))
3997         (find(const CharT*, size_type), rfind(const CharT*, size_type))
3998         (find_first_of(const CharT*, size_type))
3999         (find_last_of(const CharT*, size_type))
4000         (find_first_not_of(const CharT*, size_type))
4001         (find_last_not_of(const CharT*, size_type)): Add nonnull attribute.
4002         * testsuite/21_strings/basic_string_view/cons/char/nonnull.cc: New.
4003         * testsuite/21_strings/basic_string_view/operations/compare/char/
4004         nonnull.cc: New.
4005         * testsuite/21_strings/basic_string_view/operations/find/char/
4006         nonnull.cc: New.
4007         * testsuite/21_strings/basic_string_view/operations/rfind/char/
4008         nonnull.cc: New.
4009
4010         PR libstdc++/86168
4011         * include/bits/random.h (random_device(const string&)): Remove
4012         default argument.
4013
4014         * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits): Only
4015         define for C++17 and above.
4016
4017         LWG 2993 reference_wrapper<T> conversion from T&&
4018         * doc/xml/manual/intro.xml: Document LWG 2993 change.
4019         * include/bits/refwrap.h (reference_wrapper(_Tp&)): Remove.
4020         (reference_wrapper(_Tp&&)): Remove.
4021         (reference_wrapper<_Up>(_Up&&)): Define new constructor as constrained
4022         template.
4023         (reference_wrapper): Add deduction guide.
4024         * testsuite/20_util/reference_wrapper/deduction.cc: New.
4025         * testsuite/20_util/reference_wrapper/lwg2993.cc: New.
4026
4027         LWG 3039 Unnecessary decay in thread and packaged_task
4028         * include/std/future (__constrain_pkgdtask): Replace with ...
4029         (packaged_task::__not_same): New alias template, using
4030         __remove_cvref_t instead of decay.
4031         * include/std/thread (thread::__not_same): Add comment.
4032
4033 2018-06-14  Jonathan Wakely  <jwakely@redhat.com>
4034
4035         LWG 3075 basic_string needs deduction guides from basic_string_view
4036         * testsuite/21_strings/basic_string/cons/char/deduction.cc: Test
4037         deduction from string views.
4038         * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
4039         Likewise.
4040
4041         LWG 3074 make scalar types non-deduced in valarray non-member functions
4042         * include/bits/valarray_after.h (_DEFINE_EXPR_BINARY_FUNCTION): Change
4043         scalar parameters to be a non-deduced context.
4044         * include/std/valarray (_DEFINE_BINARY_OPERATOR): Likewise. Adjust
4045         whitespace.
4046         * testsuite/26_numerics/valarray/operators.cc: Test scalar operands.
4047         * testsuite/26_numerics/valarray/transcend.cc: New.
4048
4049         * include/std/tuple (__cpp_lib_tuple_element_t, tuple_element_t):
4050         Move back to <utility>.
4051         * include/std/utility (__cpp_lib_tuple_element_t. tuple_element_t):
4052         Restore to here.
4053
4054         P0935R0 Eradicating unnecessarily explicit default constructors
4055         * include/backward/strstream (strstreambuf): Add non-explicit default
4056         constructor.
4057         * include/bits/locale_conv.h (wbuffer_convert, wstring_convert):
4058         Likewise.
4059         * include/bits/regex.h (match_results): Likewise.
4060         * testsuite/22_locale/conversions/buffer/1.cc: Test for non-explicit
4061         default constructor.
4062         * testsuite/22_locale/conversions/string/1.cc: Likewise.
4063         * testsuite/28_regex/match_results/ctors/char/default.cc: Likewise.
4064         * testsuite/28_regex/match_results/ctors/wchar_t/default.cc: Likewise.
4065
4066         * include/std/tuple (__cpp_lib_tuple_element_t): Move feature test
4067         macro from <utility> and change type to long.
4068         * include/std/utility (__cpp_lib_tuple_element_t): Remove.
4069         * testsuite/20_util/tuple/tuple_element_t.cc: Check for feature test
4070         macro.
4071
4072         P0935R0 Eradicating unnecessarily explicit default constructors
4073         * include/bits/random.h (uniform_real_distribution::param_type)
4074         (normal_distribution::param_type, lognormal_distribution::param_type)
4075         (gamma_distribution::param_type, chi_squared_distribution::param_type)
4076         (cauchy_distribution::param_type, fisher_f_distribution::param_type)
4077         (student_t_distribution::param_type)
4078         (bernoulli_distribution::param_type)
4079         (binomial_distribution::param_type)
4080         (geometric_distribution::param_type)
4081         (negative_binomial_distribution::param_type)
4082         (poisson_distribution::param_type)
4083         (exponential_distribution::param_type)
4084         (weibull_distribution::param_type)
4085         (extreme_value_distribution::param_type): Add non-explicit default
4086         constructors. Remove default argument for first parameter of explicit
4087         constructors.
4088         * include/bits/uniform_int_dist.h
4089         (uniform_int_distribution::param_type): Likewise.
4090         * include/ext/random
4091         (beta_distribution::param_type, rice_distribution::param_type)
4092         (nakagami_distribution::param_type, pareto_distribution::param_type)
4093         (k_distribution::param_type, arcsine_distribution::param_type)
4094         (hoyt_distribution::param_type, triangular_distribution::param_type)
4095         (von_mises_distribution::param_type)
4096         (hypergeometric_distribution::param_type)
4097         (logistic_distribution::param_type)
4098         (uniform_inside_sphere_distribution::param_type): Likewise.
4099         (uniform_on_sphere_distribution::param_type): Make default constructor
4100         non-explicit.
4101         * testsuite/26_numerics/random/bernoulli_distribution/cons/default.cc:
4102         Test param_type for non-explicit default constructor.
4103         * testsuite/26_numerics/random/binomial_distribution/cons/default.cc:
4104         Likewise.
4105         * testsuite/26_numerics/random/cauchy_distribution/cons/default.cc:
4106         Likewise.
4107         * testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc:
4108         Likewise.
4109         * testsuite/26_numerics/random/discrete_distribution/cons/default.cc:
4110         Likewise.
4111         * testsuite/26_numerics/random/exponential_distribution/cons/default.cc:
4112         Likewise.
4113         * testsuite/26_numerics/random/extreme_value_distribution/cons/default.cc:
4114         Likewise.
4115         * testsuite/26_numerics/random/fisher_f_distribution/cons/default.cc:
4116         Likewise.
4117         * testsuite/26_numerics/random/gamma_distribution/cons/default.cc:
4118         Likewise.
4119         * testsuite/26_numerics/random/geometric_distribution/cons/default.cc:
4120         Likewise.
4121         * testsuite/26_numerics/random/lognormal_distribution/cons/default.cc:
4122         Likewise.
4123         * testsuite/26_numerics/random/negative_binomial_distribution/cons/default.cc:
4124         Likewise.
4125         * testsuite/26_numerics/random/normal_distribution/cons/default.cc:
4126         Likewise.
4127         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/default.cc:
4128         Likewise.
4129         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/default.cc:
4130         Likewise.
4131         * testsuite/26_numerics/random/poisson_distribution/cons/default.cc:
4132         Likewise.
4133         * testsuite/26_numerics/random/student_t_distribution/cons/default.cc:
4134         Likewise.
4135         * testsuite/26_numerics/random/uniform_int_distribution/cons/default.cc:
4136         Likewise.
4137         * testsuite/26_numerics/random/uniform_real_distribution/cons/default.cc:
4138         Likewise.
4139         * testsuite/26_numerics/random/weibull_distribution/cons/default.cc:
4140         Likewise.
4141         * testsuite/ext/random/arcsine_distribution/cons/default.cc: Likewise.
4142         * testsuite/ext/random/beta_distribution/cons/default.cc: Likewise.
4143         * testsuite/ext/random/hoyt_distribution/cons/default.cc: Likewise.
4144         * testsuite/ext/random/hypergeometric_distribution/cons/default.cc:
4145         Likewise.
4146         * testsuite/ext/random/k_distribution/cons/default.cc: Likewise.
4147         * testsuite/ext/random/logistic_distribution/cons/default.cc: Likewise.
4148         * testsuite/ext/random/nakagami_distribution/cons/default.cc: Likewise.
4149         * testsuite/ext/random/normal_mv_distribution/cons/default.cc:
4150         Likewise.
4151         * testsuite/ext/random/pareto_distribution/cons/default.cc: Likewise.
4152         * testsuite/ext/random/rice_distribution/cons/default.cc: Likewise.
4153         * testsuite/ext/random/triangular_distribution/cons/default.cc:
4154         Likewise.
4155         * testsuite/ext/random/uniform_inside_sphere_distribution/cons/default.cc:
4156         Likewise.
4157         * testsuite/ext/random/uniform_on_sphere_distribution/cons/default.cc:
4158         Likewise.
4159         * testsuite/ext/random/von_mises_distribution/cons/default.cc:
4160         Likewise.
4161
4162 2018-06-14  Daniel Trebbien <dtrebbien@gmail.com>
4163             Jonathan Wakely  <jwakely@redhat.com>
4164
4165         PR libstdc++/83982
4166         * include/bits/vector.tcc (vector::_M_default_append(size_type)):
4167         Default-construct new elements before moving existing ones.
4168         * testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc:
4169         New.
4170
4171 2018-06-13  Jonathan Wakely  <jwakely@redhat.com>
4172
4173         PR libstdc++/86127
4174         * include/bits/forward_list.h (_Fwd_list_base::_Tp_alloc_type): Remove
4175         unused typedef.
4176         (_Fwd_list_base::_M_create_node, _Fwd_list_base::_M_erase_after):
4177         Use node allocator to create and destroy elements.
4178         (forward_list::_Tp_alloc_type): Remove unused typedef.
4179         (forward_list::_Alloc_traits): Use allocator_traits instead of
4180         __gnu_cxx::__alloc_traits.
4181
4182 2018-06-13  François Dumont  <fdumont@gcc.gnu.org>
4183
4184         * include/debug/helper_functions.h
4185         (__gnu_debug::_Safe_iterator<>): Add declaration.
4186         (__can_advance(_Ite, _Size)): New.
4187         (__can_advance(const _Safe_iterator<>&, _Size)): Overload declaration.
4188         * include/debug/functions.h
4189         (__gnu_debug::_Safe_iterator<>): Remove declaration.
4190         * include/debug/stl_iterator.h
4191         (__can_advance(const _Safe_iterator<>&)): New definition.
4192         * include/debug/stl_iterator.h
4193         (__can_advance(const std::reverse_iterator<>&, _Size)): New.
4194         (__can_advance(const std::move_iterator<>&, _Size)): New.
4195         * include/debug/macros.h (__glibcxx_check_can_increment): New.
4196         * include/debug/debug.h (__glibcxx_requires_can_increment): New.
4197         * include/bits/stl_algobase.h (fill_n): Use latter.
4198         * testsuite/25_algorithms/fill_n/2.cc: New.
4199         * testsuite/25_algorithms/fill_n/debug/1_neg.cc: New.
4200         * testsuite/25_algorithms/fill_n/debug/2_neg.cc: New.
4201         * testsuite/25_algorithms/fill_n/debug/3_neg.cc: New.
4202         * testsuite/25_algorithms/fill_n/debug/4_neg.cc: New.
4203
4204         * include/debug/debug.h (__glibcxx_requires_can_increment_range): New.
4205         (__glibcxx_requires_can_decrement_range): New.
4206
4207 2018-06-12  François Dumont  <fdumont@gcc.gnu.org>
4208
4209         * include/debug/macros.h (__glibcxx_check_can_increment_range): New.
4210         (__glibcxx_check_can_decrement_range): New.
4211         * include/bits/stl_algobase.h (std::copy(_II, _II, _OI)): Use
4212         __glibcxx_requires_can_increment_range.
4213         (std::move(_II, _II, _OI)): Likewise.
4214         (std::copy_backward(_BI, _BI, _BI2)): Use
4215         __glibcxx_requires_can_decrement_range.
4216         (std::move_backward(_BI, _BI, _BI2)): Likewise.
4217         * testsuite/25_algorithms/copy_backward/debug/1_neg.cc: New.
4218         * testsuite/25_algorithms/copy_backward/debug/2_neg.cc: New.
4219         * testsuite/25_algorithms/copy_backward/debug/3_neg.cc: New.
4220         * testsuite/25_algorithms/equal/debug/1_neg.cc: New.
4221         * testsuite/25_algorithms/equal/debug/2_neg.cc: New.
4222         * testsuite/25_algorithms/equal/debug/3_neg.cc: New.
4223
4224 2018-06-12  Jonathan Wakely  <jwakely@redhat.com>
4225
4226         P0935R0 Eradicating unnecessarily explicit default constructors
4227         * include/bits/random.h (linear_congruential_engine)
4228         (mersenne_twister_engine, subtract_with_carry_engine, random_device)
4229         (uniform_real_distribution, normal_distribution)
4230         (lognormal_distribution, gamma_distribution, chi_squared_distribution)
4231         (cauchy_distribution, fisher_f_distribution, student_t_distribution)
4232         (bernoulli_distribution, binomial_distribution,geometric_distribution)
4233         (negative_binomial_distribution, exponential_distribution)
4234         (weibull_distribution, extreme_value_distribution): Add non-explicit
4235         default constructors. Remove default argument for first parameter of
4236         explicit constructors.
4237         (piecewise_constant_distribution, piecewise_linear_distribution):
4238         Make default constructor non-explicit.
4239         * include/bits/uniform_int_dist.h (uniform_int_distribution): Add
4240         non-explicit default constructors. Remove default argument for first
4241         parameter of explicit constructor.
4242         * include/ext/random
4243         (simd_fast_mersenne_twister_engine, beta_distribution)
4244         (rice_distribution, nakagami_distribution, pareto_distribution)
4245         (k_distribution, arcsine_distribution, hoyt_distribution)
4246         (triangular_distribution, von_mises_distribution)
4247         (hypergeometric_distribution, logistic_distribution)
4248         (uniform_inside_sphere_distribution): Likewise.
4249         (uniform_on_sphere_distribution): Make default constructor
4250         non-explicit.
4251         * testsuite/26_numerics/random/bernoulli_distribution/cons/default.cc:
4252         Test for non-explicit default constructor. Fix references to standard.
4253         * testsuite/26_numerics/random/binomial_distribution/cons/default.cc:
4254         Likewise.
4255         * testsuite/26_numerics/random/cauchy_distribution/cons/default.cc:
4256         Likewise.
4257         * testsuite/26_numerics/random/chi_squared_distribution/cons/default.cc:
4258         Likewise.
4259         * testsuite/26_numerics/random/discrete_distribution/cons/default.cc:
4260         Likewise.
4261         * testsuite/26_numerics/random/exponential_distribution/cons/default.cc:
4262         Likewise.
4263         * testsuite/26_numerics/random/extreme_value_distribution/cons/default.cc:
4264         Likewise.
4265         * testsuite/26_numerics/random/fisher_f_distribution/cons/default.cc:
4266         Likewise.
4267         * testsuite/26_numerics/random/gamma_distribution/cons/default.cc:
4268         Likewise.
4269         * testsuite/26_numerics/random/geometric_distribution/cons/default.cc:
4270         Likewise.
4271         * testsuite/26_numerics/random/lognormal_distribution/cons/default.cc:
4272         Likewise.
4273         * testsuite/26_numerics/random/negative_binomial_distribution/cons/default.cc:
4274         Likewise.
4275         * testsuite/26_numerics/random/normal_distribution/cons/default.cc:
4276         Likewise.
4277         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/default.cc:
4278         Likewise.
4279         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/default.cc:
4280         Likewise.
4281         * testsuite/26_numerics/random/poisson_distribution/cons/default.cc:
4282         Likewise.
4283         * testsuite/26_numerics/random/student_t_distribution/cons/default.cc:
4284         Likewise.
4285         * testsuite/26_numerics/random/uniform_int_distribution/cons/default.cc:
4286         Likewise.
4287         * testsuite/26_numerics/random/uniform_real_distribution/cons/default.cc:
4288         Likewise.
4289         * testsuite/26_numerics/random/weibull_distribution/cons/default.cc:
4290         Likewise.
4291         * testsuite/ext/random/arcsine_distribution/cons/default.cc: Likewise.
4292         * testsuite/ext/random/beta_distribution/cons/default.cc: Likewise.
4293         * testsuite/ext/random/hoyt_distribution/cons/default.cc: Likewise.
4294         * testsuite/ext/random/hypergeometric_distribution/cons/default.cc:
4295         Likewise.
4296         * testsuite/ext/random/k_distribution/cons/default.cc: Likewise.
4297         * testsuite/ext/random/logistic_distribution/cons/default.cc: Likewise.
4298         * testsuite/ext/random/nakagami_distribution/cons/default.cc: Likewise.
4299         * testsuite/ext/random/normal_mv_distribution/cons/default.cc:
4300         Likewise.
4301         * testsuite/ext/random/pareto_distribution/cons/default.cc: Likewise.
4302         * testsuite/ext/random/rice_distribution/cons/default.cc: Likewise.
4303         * testsuite/ext/random/triangular_distribution/cons/default.cc:
4304         Likewise.
4305         * testsuite/ext/random/uniform_inside_sphere_distribution/cons/default.cc:
4306         Likewise.
4307         * testsuite/ext/random/uniform_on_sphere_distribution/cons/default.cc:
4308         Likewise.
4309         * testsuite/ext/random/von_mises_distribution/cons/default.cc:
4310         Likewise.
4311         * testsuite/util/testsuite_common_types.h
4312         (implicitly_default_constructible): New helper.
4313
4314 2018-06-08  Jonathan Wakely  <jwakely@redhat.com>
4315
4316         * include/bits/ios_base.h (ios::Init::Init(const Init&))
4317         (ios::Init::operator=): Define as defaulted.
4318         * include/bits/stl_bvector.h (_Bit_reference(const _Bit_reference&)):
4319         Likewise.
4320         * include/bits/stream_iterator.h (istream_iterator::operator=)
4321         (ostream_iterator::operator=): Likewise.
4322         * include/bits/streambuf_iterator.h (istreambuf_iterator::operator=)
4323         Likewise.
4324         * include/std/bitset (bitset::reference::reference(const reference&)):
4325         Likewise.
4326         * include/std/complex (complex<float>::complex(const complex&))
4327         (complex<double>::complex(const complex&))
4328         (complex<long double>::complex(const complex&)): Likewise.
4329
4330 2018-06-07  Jonathan Wakely  <jwakely@redhat.com>
4331
4332         * include/bits/regex.h (sub_match): Add noexcept to default
4333         constructor and length observer.
4334         (match_results): Add noexcept to default constructor and observers
4335         with no preconditions. Define destructor as defaulted.
4336         (operator==, operator!=, swap): Add noexcept.
4337         (regex_iterator): Add default member initializers and define default
4338         constructor and destructor as defaulted. Add noexcept to equality
4339         and dereference operators.
4340
4341 2018-06-07  François Dumont  <fdumont@gcc.gnu.org>
4342
4343         * src/c++11/debug.cc
4344         (_Safe_iterator_base::_M_detach()): Reset state only if needed.
4345         (_Safe_iterator_base::_M_detach_single()): Likewise.
4346         (_Safe_local_iterator_base::_M_detach()): Reset state only if needed.
4347         (_Safe_local_iterator_base::_M_detach_single()): Likewise.
4348
4349 2018-06-06  Jonathan Wakely  <jwakely@redhat.com>
4350
4351         * include/bits/shared_ptr_base.h (__shared_count): Remove redundant
4352         move of const value.
4353
4354 2018-06-06  Jakub Jelinek  <jakub@redhat.com>
4355
4356         PR c++/86068
4357         * include/bits/c++config: Check __cpp_transactional_memory >= 201500L
4358         rather than __cpp_transactional_memory >= 201505L.
4359
4360 2018-06-06  Jonathan Wakely  <jwakely@redhat.com>
4361
4362         PR libstdc++/86008
4363         * include/bits/quoted_string.h (_Quoted_string<basic_string_view, C>):
4364         Define new partial specialization.
4365         * include/std/iomanip (quoted(basic_string_view<C,T>, C, C)): Define
4366         new overload.
4367         (operator<<(basic_ostream<C,T>&, const _Quoted_string<S,C>&)): Use
4368         value not reference for iteration.
4369         * testsuite/27_io/manipulators/standard/char/quoted.cc: Adjust
4370         comment.
4371         * testsuite/27_io/manipulators/standard/char/quoted_sv.cc: New test.
4372         * testsuite/27_io/manipulators/standard/wchar_t/quoted.cc: Adjust
4373         comment.
4374
4375 2018-06-05  Jonathan Wakely  <jwakely@redhat.com>
4376
4377         * include/std/type_traits: Fix comment typos.
4378
4379         * testsuite/27_io/filesystem/operations/read_symlink.cc: XFAIL for
4380         mingw* targets.
4381         * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
4382         * testsuite/experimental/filesystem/operations/read_symlink.cc:
4383         Likewise.
4384
4385 2018-06-05  François Dumont  <fdumont@gcc.gnu.org>
4386
4387         * include/bits/stl_tempbuf.h
4388         (_Temporary_buffer(_FwdIte, _FwdIte)): Delete, replaced by...
4389         (_Temporary_buffer(_FwdIte, size_type)): ...this, new.
4390         * include/ext/memory (temporary_buffer<>(_FwdIte, _FwdIte)): Adapt.
4391         * include/bits/stl_algo.h (__stable_partition): Adapt.
4392         (__inplace_merge): Adapt.
4393         (__stable_sort): Adapt.
4394
4395 2018-06-04  Jonathan Wakely  <jwakely@redhat.com>
4396
4397         PR libstdc++/85930
4398         * include/bits/shared_ptr_base.h [!__cpp_rtti]: Include <typeinfo>
4399         unconditionally. Remove redundant declaration.
4400         [!__cpp_rtti] (_Sp_make_shared_tag::_S_ti): Fix location of
4401         alignment-specifier.
4402
4403         * include/bits/postypes.h (fpos): Define special members as defaulted.
4404
4405         PR libstdc++/85930
4406         * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Align
4407         the static variable correctly.
4408
4409 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
4410
4411         PR libstdc++/78870 support std::filesystem on Windows
4412         * config.h.in: Regenerate.
4413         * configure: Regenerate.
4414         * configure.ac: Check for link, readlink and symlink.
4415         * include/bits/fs_path.h (path::operator/=(const path&)): Move
4416         definition out of class body.
4417         (path::is_absolute(), path::_M_append(path)): Likewise.
4418         (operator<<(basic_ostream, const path&)): Use std::quoted directly.
4419         (operator>>(basic_istream, path&)): Likewise.
4420         (u8path): Reorder definitions and fix Windows implementation.
4421         (path::is_absolute()): Define inline and fix for Windows.
4422         [!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
4423         Define POSIX version inline.
4424         (path::_M_append(path)): Define inline.
4425         * include/experimental/bits/fs_path.h (path::is_absolute()): Move
4426         definition out of class body.
4427         (operator<<(basic_ostream, const path&)): Fix type of delimiter and
4428         escape characters.
4429         (operator>>(basic_istream, path&)): Likewise.
4430         (path::is_absolute()): Define inline and fix for Windows.
4431         * src/filesystem/dir-common.h (__gnu_posix): New namespace.
4432         (__gnu_posix::char_type, __gnu_posix::DIR, __gnu_posix::dirent)
4433         (__gnu_posix::opendir, __gnu_posix::readdir, __gnu_posix::closedir):
4434         Define as adaptors for Windows functions/types or as
4435         using-declarations for POSIX functions/types.
4436         (_Dir_base, get_file_type): Qualify names to use declarations from
4437         __gnu_posix namespace.
4438         (_Dir_base::is_dor_or_dotdot): New helper functions.
4439         * src/filesystem/dir.cc (_Dir, recursive_directory_iterator): Qualify
4440         names to use declarations from __gnu_posix namespace.
4441         * src/filesystem/ops-common.h (__gnu_posix): New nested namespace.
4442         (__gnu_posix::open, __gnu_posix::close, __gnu_posix::stat_type)
4443         (__gnu_posix::stat, __gnu_posix::lstat, __gnu_posix::mode_t)
4444         (__gnu_posix::chmod, __gnu_posix::mkdir, __gnu_posix::getcwd)
4445         (__gnu_posix::chdir, __gnu_posix::utimbuf, __gnu_posix::utime)
4446         (__gnu_posix::rename, __gnu_posix::truncate, __gnu_posix::char_type):
4447         Define as adaptors for Windows functions/types or as
4448         using-declarations for POSIX functions/types.
4449         (stat_type, do_copy_file): Qualify names to use declarations from
4450         __gnu_posix namespace.
4451         (do_space): Declare new function.
4452         (make_file_type): Only use S_ISLNK if defined.
4453         * src/filesystem/ops.cc (char_ptr, filesystem::canonical): Use
4454         path::value_type not char.
4455         (filesystem::copy, create_dir, filesystem::create_directory): Qualify
4456         names to use declarations from __gnu_posix namespace.
4457         (filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
4458         add implementation for Windows.
4459         (filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
4460         (filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
4461         [!_PC_PATH_MAX]: Don't use pathconf.
4462         [PATH_MAX]: Use if defined.
4463         (filesystem::current_path(const path&, error_code&))
4464         (filesystem::equivalent, do_stat, filesystem::hard_link_count)
4465         (filesystem::last_write_time, filesystem::permissions): Use names
4466         from __gnu_posix.
4467         (filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
4468         (filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
4469         implementation for Windows.
4470         (filesystem::rename, filesystem::resize_file): Use names from
4471         __gnu_posix.
4472         (filesystem::space): Use do_space.
4473         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Get absolute path to directory.
4474         (filesystem::status, filesystem::symlink_status): Use names from
4475         __gnu_posix.
4476         (filesystem::temp_directory_path): Add implementation for Windows.
4477         * src/filesystem/path.cc (dot): Define constant.
4478         (path::replace_extension): Use dot.
4479         (path::_M_find_extension): Likewise. Use path::string_type not
4480         std::string.
4481         (path::_M_split_cmpts): Use dot.
4482         (filesystem_error::_M_get_what): Use u8string() not native().
4483         * src/filesystem/std-dir.cc (_Dir, recursive_directory_iterator):
4484         Qualify names to use declarations from __gnu_posix namespace.
4485         * src/filesystem/std-ops.cc (filesystem::absolute(const path&)): Use
4486         correct error_code.
4487         (filesystem::absolute(const path&, error_code&)): Add implementation
4488         for Windows.
4489         (char_ptr, filesystem::canonical): Use path::value_type not char.
4490         (do_copy_file): Use names from __gnu_posix.
4491         [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Do not use fchmod, fchmodat or
4492         sendfile.
4493         (filesystem::copy, create_dir, filesystem::create_directory): Qualify
4494         names to use declarations from __gnu_posix namespace.
4495         (filesystem::create_hard_link): Check HAVE_LINK autoconf macro and
4496         add implementation for Windows.
4497         (filesystem::create_symlink): Check HAVE_SYMLINK autoconf macro.
4498         (filesystem::current_path(error_code&)): Use __gnu_posix::getcwd.
4499         [!_PC_PATH_MAX]: Don't use pathconf.
4500         [PATH_MAX]: Use if defined.
4501         (filesystem::current_path(const path&, error_code&))
4502         (filesystem::equivalent, do_stat, filesystem::hard_link_count)
4503         (filesystem::last_write_time, filesystem::permissions): Use names
4504         from __gnu_posix.
4505         (filesystem::read_symlink): Check HAVE_READLINK autoconf macro.
4506         (filesystem::remove) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add
4507         implementation for Windows.
4508         (filesystem::rename, filesystem::resize_file): Use names from
4509         __gnu_posix.
4510         (do_space): Define.
4511         (filesystem::space): Use do_space.
4512         (filesystem::status, filesystem::symlink_status): Use names from
4513         __gnu_posix.
4514         (filesystem::temp_directory_path): Add implementation for Windows.
4515         * src/filesystem/std-path.cc
4516         [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::operator/=(const path&)):
4517         Define for Windows.
4518         (dot): Define constant.
4519         (path::replace_extension, is_dot): Use dot.
4520         (path::lexically_normal): Check _M_type instead of calling
4521         non-existent function.
4522         (path::_M_find_extension): Use dot. Use path::string_type not
4523         std::string.
4524         (path::_M_split_cmpts): Use dot.
4525         (filesystem_error::_M_get_what): Use u8string() not native().
4526         * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Do not
4527         use symlinks.
4528         * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
4529         Likewise.
4530         * testsuite/27_io/filesystem/operations/absolute.cc: Use
4531         __gnu_test::root_path() instead of "/" and add Windows-specific tests.
4532         * testsuite/27_io/filesystem/operations/canonical.cc: Use
4533         path::string() to get narrow string, not path::native().
4534         * testsuite/27_io/filesystem/operations/copy.cc: Construct fstreams
4535         with std::filesystem::path not std::basic_string.
4536         * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
4537         * testsuite/27_io/filesystem/operations/exists.cc: Use
4538         __gnu_test::root_path() instead of "/".
4539         * testsuite/27_io/filesystem/operations/is_empty.cc: Construct
4540         fstreams with std::filesystem::path not std::basic_string.
4541         * testsuite/27_io/filesystem/operations/last_write_time.cc: Use
4542         path::string() to get narrow string.
4543         * testsuite/27_io/filesystem/operations/space.cc: Check results for
4544         errors, expect sensible values otherwise.
4545         * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Add
4546         helpers for adjusting the environment on Windows.
4547         * testsuite/27_io/filesystem/path/append/path.cc: Test
4548         Windows-specific behaviour.
4549         * testsuite/27_io/filesystem/path/construct/format.cc: Fix creation
4550         of path::string_type objects.
4551         * testsuite/27_io/filesystem/path/construct/locale.cc: Compare native
4552         string to wide string on Windows.
4553         * testsuite/27_io/filesystem/path/decompose/root_directory.cc: Allow
4554         for backslash as root-directory.
4555         * testsuite/27_io/filesystem/path/decompose/stem.cc: Use
4556         path::string() to get narrow string.
4557         * testsuite/27_io/filesystem/path/itr/traversal.cc: Test Windows-style
4558         paths.
4559         * testsuite/27_io/filesystem/path/native/string.cc: Use string_type
4560         not std::string.
4561         * testsuite/27_io/filesystem/path/query/is_absolute.cc: Adjust for
4562         different definintion of absolute paths on Windows.
4563         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
4564         Do not use symlinks.
4565         * testsuite/experimental/filesystem/operations/absolute.cc: Test
4566         Windows behaviour.
4567         * testsuite/experimental/filesystem/operations/copy.cc: Construct
4568         fstreams with NTCTS not std::basic_string.
4569         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
4570         * testsuite/experimental/filesystem/operations/exists.cc: Use
4571         __gnu_test::root_path() instead of "/".
4572         * testsuite/experimental/filesystem/operations/is_empty.cc: Construct
4573         fstreams with NTCTS not std::basic_string.
4574         * testsuite/experimental/filesystem/operations/last_write_time.cc:
4575         Use path::string() to get narrow string.
4576         * testsuite/experimental/filesystem/operations/space.cc: Use
4577         __gnu_test::root_path() instead of "/".
4578         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
4579         Add helpers for adjusting the environment on Windows.
4580         * testsuite/experimental/filesystem/path/append/path.cc: Use
4581         path::string() to get narrow strings for comparisons.
4582         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
4583         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
4584         Likewise.
4585         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
4586         * testsuite/experimental/filesystem/path/native/string.cc: Use
4587         string_type not std::string.
4588         * testsuite/experimental/filesystem/path/query/is_absolute.cc:
4589         Adjust for different definintion of absolute paths on Windows.
4590         * testsuite/util/testsuite_fs.h (__gnu_test::root_path()): New
4591         function.
4592         (__gnu_test::scoped_file): Construct fstreams with NTCTS not
4593         std::basic_string.
4594
4595 2018-05-31  Jonathan Wakely  <jwakely@redhat.com>
4596
4597         PR libstdc++/85951
4598         * include/std/type_traits [_GLIBCXX_USE_C99_STDINT_TR1]: Do not define
4599         uint_least16_t and uint_least32_t.
4600         (__make_unsigned<wchar_t>): Define unconditionally.
4601         (__make_unsigned_selector<_Tp, true, false>): Remove intermediate
4602         typedefs.
4603         (__make_unsigned_selector_base): New type to provide helper templates.
4604         (__make_unsigned_selector<_Tp, false, true>): Reimplement using
4605         __make_unsigned_selector_base helpers.
4606         (__make_unsigned<char16_t>, __make_unsigned<char32_t>): Define.
4607         (__make_signed_selector<_Tp, true, false>): Remove intermediate
4608         typedefs.
4609         (__make_signed<wchar_t>, __make_signed<char16_t>)
4610         (__make_signed<char32_t>)): Define unconditionally.
4611         * testsuite/20_util/make_signed/requirements/typedefs-3.cc: Check
4612         wchar_t, char16_t and char32_t are transformed correctly.
4613         * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
4614         dg-error lineno.
4615         * testsuite/20_util/make_unsigned/requirements/typedefs-3.cc: Check
4616         wchar_t, char16_t and char32_t are transformed correctly.
4617         * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust
4618         dg-error lineno.
4619
4620 2018-05-29  Jonathan Wakely  <jwakely@redhat.com>
4621
4622         * include/std/variant (__erased_dtor): Qualify call to __get.
4623
4624 2018-05-27  François Dumont  <fdumont@gcc.gnu.org>
4625
4626         * include/bits/stl_tree.h (_Rb_tree_impl(_Node_allocator&&)): New.
4627         (_Rb_tree(const allocator_type&)): Use latter.
4628         * include/bits/stl_map.h (map(const allocator_type&)): Likewise.
4629         (map(initializer_list<value_type>, const allocator_type&)): Likewise.
4630         (map(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
4631         * include/bits/stl_multimap.h
4632         (multimap(const allocator_type&)): Likewise.
4633         (multimap(initializer_list<value_type>, const allocator_type&)):
4634         Likewise.
4635         (multimap(_InputIterator, _InputIterator, const allocator_type&)):
4636         Likewise.
4637         * include/bits/stl_set.h (set(const allocator_type&)): Likewise.
4638         (set(initializer_list<value_type>, const allocator_type&)): Likewise.
4639         (set(_InputIterator, _InputIterator, const allocator_type&)): Likewise.
4640         * include/bits/stl_multiset.h
4641         (multiset(const allocator_type&)): Likewise.
4642         (multiset(initializer_list<value_type>, const allocator_type&)):
4643         Likewise.
4644         (multiset(_InputIterator, _InputIterator, const allocator_type&)):
4645         Likewise.
4646
4647 2018-05-25  François Dumont  <fdumont@gcc.gnu.org>
4648
4649         PR libstdc++/85768
4650         * src/c++11/debug.cc: Remove backtrace usage.
4651
4652 2018-05-24  Maya Rashish  <coypu@sdf.org>
4653
4654         PR target/85904
4655         * crossconfig.m4: Test for aligned_alloc on netbsd.
4656         * configure: Regenerate.
4657
4658 2018-05-24  Jonathan Wakely  <jwakely@redhat.com>
4659
4660         PR libstdc++/69769
4661         PR libstdc++/85886
4662         * include/bits/atomic_base.h (__atomic_base::value_type)
4663         (__atomic_base::difference_type): Add new typedefs.
4664         * include/std/atomic (atomic<bool>::value_type, atomic<T>::value_type)
4665         (atomic<T*>::value_type, atomic<T*>::difference_type): Likewise.
4666         (atomic<T*>::operator++, atomic<T*>::operator--)
4667         (atomic<T*>::operator+=, atomic<T*>::operator-=)
4668         (atomic<T*>::fetch_add, atomic<T*>::fetch_sub): Add static assertion
4669         to enforce C++17 requirement on pointer arithmetic.
4670         (__atomic_val_t, __atomic_diff_t): New alias templates.
4671         (atomic_init, atomic_store_explicit, atomic_exchange_explicit)
4672         (atomic_compare_exchange_weak_explicit)
4673         (atomic_compare_exchange_strong_explicit, atomic_store)
4674         (atomic_exchange, atomic_compare_exchange_weak)
4675         (atomic_compare_exchange_strong): Use __atomic_val_t to make
4676         scalar parameters be non-deduced contexts.
4677         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
4678         (atomic_fetch_add, atomic_fetch_sub): Change first parameter to be
4679         atomic instead of __atomic_base, and use __atomic_diff_t for scalar
4680         parameters.
4681         (atomic_fetch_and_explicit, atomic_fetch_or_explicit)
4682         (atomic_fetch_xor_explicit, atomic_fetch_and, atomic_fetch_or)
4683         (atomic_fetch_xor): Use __atomic_val_t for scalar parameters.
4684         (atomic_fetch_add_explicit, atomic_fetch_sub_explicit)
4685         (atomic_fetch_add, atomic_fetch_sub): Remove overloads for atomic
4686         address types.
4687         * testsuite/29_atomics/atomic/60695.cc: Adjust dg-error lineno.
4688         * testsuite/29_atomics/atomic/69769.cc: New test.
4689         * testsuite/29_atomics/atomic/nonmembers.cc: New test.
4690         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
4691         Disable test for C++17 and later.
4692         * testsuite/29_atomics/atomic/requirements/typedefs.cc: New test.
4693         * testsuite/29_atomics/atomic_integral/nonmembers.cc: New test.
4694         * testsuite/29_atomics/atomic_integral/requirements/typedefs.cc: New
4695         test.
4696
4697 2018-05-23  Jonathan Wakely  <jwakely@redhat.com>
4698
4699         * include/bits/fs_path.h (path::__is_encoded_char): Change from class
4700         template to alias template.
4701         (path::__value_type_is_char): Use remove_const_t.
4702         (path:_S_string_from_iter): New helper function.
4703         (path::_S_convert(InputIter, __null_terminated))
4704         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
4705         Use _S_string_from_iter.
4706         (path::string<_CharT, _Allocator>(const _Allocator&)): Allow sharing
4707         rep for COW strings.
4708         * include/experimental/bits/fs_path.h (path::__is_encoded_char):
4709         Change from class template to alias template.
4710         (path::__value_type_is_char): Use remove_const.
4711         (path:_S_string_from_iter): New helper function.
4712         (path::_S_convert(InputIter, __null_terminated))
4713         (path::_S_convert_loc(InputIter, __null_terminated, const locale&)):
4714         Use _S_string_from_iter.
4715         * testsuite/27_io/filesystem/path/append/source.cc: Test appending
4716         wide strings.
4717         * testsuite/27_io/filesystem/path/concat/strings.cc: Check for exact
4718         string equality, not path equivalence.
4719         * testsuite/27_io/filesystem/path/construct/format.cc: Check
4720         construction from std::string and std::wstring and input iterators.
4721         * testsuite/27_io/filesystem/path/construct/locale.cc: Check
4722         construction from iterators.
4723         * testsuite/experimental/filesystem/path/concat/strings.cc: Check for
4724         exact string equality, not path equivalence.
4725         * testsuite/experimental/filesystem/path/construct/locale.cc: Check
4726         construction from iterators.
4727
4728         * include/bits/fs_path.h (path::_M_type): Change default member
4729         initializer to _Filename.
4730         (path::begin): Create past-the-end iterator for empty path.
4731         * src/filesystem/std-path.cc (path::remove_filename()): Remove
4732         debugging check.
4733         (path::has_relative_path()): Return false for empty filenames.
4734         (path::_M_split_cmpts): Set _M_type to _Filename for empty paths.
4735         Fix offset of empty final component.
4736         * testsuite/27_io/filesystem/path/itr/components.cc: New.
4737         * testsuite/27_io/filesystem/path/itr/traversal.cc: Add new inputs.
4738
4739 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
4740
4741         Add support for opening file streams from wide character strings.
4742         * config/io/basic_file_stdio.cc [_GLIBCXX_HAVE__WFOPEN]
4743         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
4744         Define new overload.
4745         * config/io/basic_file_stdio.h [_GLIBCXX_HAVE__WFOPEN]
4746         (__basic_file<char>::open(const wchar_t*, ios_base::openmode)):
4747         Declare new overload.
4748         * configure.ac: Check for _wfopen.
4749         * crossconfig.m4: Likewise.
4750         * configure: Regenerate.
4751         * config.h.in: Regenerate.
4752         * include/bits/fstream.tcc [_GLIBCXX_HAVE__WFOPEN]
4753         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
4754         Define new overload.
4755         * include/std/fstream [_GLIBCXX_HAVE__WFOPEN]
4756         (basic_filebuf<C,T>::open(const wchar_t*, ios_base::openmode)):
4757         Declare new overload.
4758         [_GLIBCXX_HAVE__WFOPEN]
4759         (basic_ifstream<C,T>::basic_ifstream(const wchar_t*, openmode))
4760         (basic_ifstream<C,T>::basic_open(const wchar_t*, openmode))
4761         (basic_ofstream<C,T>::basic_ifstream(const wchar_t*, openmode))
4762         (basic_ofstream<C,T>::basic_open(const wchar_t*, openmode))
4763         (basic_fstream<C,T>::basic_ifstream(const wchar_t*, openmode))
4764         (basic_fstream<C,T>::basic_open(const wchar_t*, openmode)): Define
4765         new overloads.
4766         * testsuite/27_io/basic_filebuf/open/wchar_t/1.cc: New.
4767         * testsuite/27_io/basic_ifstream/cons/wchar_t/1.cc: New.
4768         * testsuite/27_io/basic_ifstream/open/wchar_t/1.cc: New.
4769         * testsuite/27_io/basic_ofstream/cons/wchar_t/1.cc: New.
4770         * testsuite/27_io/basic_ofstream/open/wchar_t/1.cc: New.
4771         * testsuite/27_io/basic_fstream/cons/wchar_t/1.cc: New.
4772         * testsuite/27_io/basic_fstream/open/wchar_t/1.cc: New.
4773
4774 2018-05-21  François Dumont  <fdumont@gcc.gnu.org>
4775
4776         PR libstdc++/85845
4777         * include/bits/stl_tree.h
4778         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): Fix noexcept
4779         qualification.
4780
4781 2018-05-21  Jonathan Wakely  <jwakely@redhat.com>
4782
4783         * src/filesystem/std-ops.cc (absolute): Report an error for empty
4784         paths.
4785         (weakly_canonical(const path&)): Do not call canonical on empty path.
4786         (weakly_canonical(const path&, error_code&)): Likewise.
4787         * testsuite/27_io/filesystem/operations/absolute.cc: Check for errors.
4788
4789         PR libstdc++/85818
4790         * testsuite/experimental/filesystem/path/preferred_separator.cc: Add
4791         dg-require-filesystem-ts.
4792
4793         PR libstdc++/85843
4794         * src/c++11/cow-stdexcept.cc (logic_error, runtime_error): Explicitly
4795         initialize base class to avoid warnings.
4796
4797 2018-05-19  Jonathan Wakely  <jwakely@redhat.com>
4798
4799         * src/c++11/codecvt.cc (__codecvt_utf8_base<wchar_t>::do_in)
4800         [__SIZEOF_WCHAR_T__==2 && __BYTE_ORDER__!=__ORDER_BIG_ENDIAN__]: Set
4801         little_endian element in bitmask.
4802         * testsuite/22_locale/codecvt/codecvt_utf8/69703.cc: Run all tests.
4803         * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: New.
4804
4805 2018-05-18  François Dumont  <fdumont@gcc.gnu.org>
4806
4807         * include/bits/stl_tree.h
4808         (_Rb_tree_impl(_Rb_tree_impl&&, _Node_allocator&&)): New.
4809         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, true_type)): New, use latter.
4810         (_Rb_tree(_Rb_tree&&, _Node_allocator&&, false_type)): New.
4811         (_Rb_tree(_Rb_tree&&, _Node_allocator&&)): Adapt, use latters.
4812         * include/debug/map.h
4813         (map(map&&, const_allocator_type&)): Add noexcept qualitication.
4814         * include/debug/multimap.h
4815         (multimap(multimap&&, const_allocator_type&)): Likewise.
4816         * include/debug/set.h
4817         (set(set&&, const_allocator_type&)): Likewise.
4818         * include/debug/multiset.h
4819         (multiset(multiset&&, const_allocator_type&)): Likewise.
4820         * testsuite/23_containers/map/cons/noexcept_default_construct.cc:
4821         Add checks.
4822         * testsuite/23_containers/map/cons/noexcept_move_construct.cc:
4823         Add checks.
4824         * testsuite/23_containers/multimap/cons/noexcept_default_construct.cc:
4825         Add checks.
4826         * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc:
4827         Add checks.
4828         * testsuite/23_containers/multiset/cons/noexcept_default_construct.cc:
4829         Add checks.
4830         * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc:
4831         Add checks.
4832         * testsuite/23_containers/set/cons/noexcept_default_construct.cc:
4833         Add checks.
4834         * testsuite/23_containers/set/cons/noexcept_move_construct.cc:
4835         Add checks.
4836
4837 2018-05-18  Jason Merrill  <jason@redhat.com>
4838
4839         * include/bits/stl_deque.h (_Deque_iterator): Constrain constructor
4840         for conversion to const_iterator.  Add defaulted copy ops.
4841         * libsupc++/new (bad_alloc): Add defaulted copy ops.
4842         * libsupc++/exception.h (exception): Add defaulted copy ops.
4843         * include/std/system_error (system_error): Add defaulted copy ops.
4844         * include/std/stdexcept (domain_error, invalid_argument)
4845         (length_error, out_of_range, range_error, overflow_error)
4846         (underflow_error): Add defaulted copy ops.
4847         * include/bits/stl_iterator.h (reverse_iterator): Add defaulted
4848         copy assignment.
4849         * include/bits/allocator.h (allocator): Add defaulted copy assignment.
4850         * include/ext/throw_allocator.h (condition_base): Add defaulted
4851         default and copy ctor and copy assignment.
4852
4853 2018-05-18  Jonathan Wakely  <jwakely@redhat.com>
4854
4855         PR libstdc++/85098
4856         * include/bits/regex.h [__cplusplus < 201703L] (basic_regex::icase)
4857         (basic_regex::nosubs, basic_regex::optimize, basic_regex::collate)
4858         (basic_regex::ECMAScript, basic_regex::basic, basic_regex::extended)
4859         (basic_regex::awk, basic_regex::grep, basic_regex::egrep): Add
4860         definitions.
4861         * include/bits/regex_automaton.h (_NFA::_M_insert_state): Adjust
4862         whitespace.
4863         * include/bits/regex_compiler.tcc (__INSERT_REGEX_MATCHER): Add
4864         braces around body of do-while.
4865         * testsuite/28_regex/basic_regex/85098.cc: New
4866
4867 2018-05-17  Jonathan Wakely  <jwakely@redhat.com>
4868
4869         PR libstdc++/85818
4870         * src/filesystem/path.cc (path::preferred_separator): Add used
4871         attribute.
4872         * testsuite/experimental/filesystem/path/preferred_separator.cc: New.
4873
4874         PR libstdc++/85812
4875         * libsupc++/cxxabi_init_exception.h (__cxa_free_exception): Declare.
4876         * libsupc++/exception_ptr.h (make_exception_ptr) [__cpp_exceptions]:
4877         Refactor to separate non-throwing and throwing implementations.
4878         [__cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI]: Deallocate the memory
4879         if constructing the object throws.
4880
4881 2018-05-15  Jonathan Wakely  <jwakely@redhat.com>
4882
4883         PR libstdc++/85749
4884         * include/bits/random.h (__detail::__is_seed_seq): New SFINAE helper.
4885         (linear_congruential_engine, mersenne_twister_engine)
4886         (subtract_with_carry_engine, discard_block_engine)
4887         (independent_bits_engine, shuffle_order_engine): Use __is_seed_seq to
4888         constrain function templates taking seed sequences.
4889         * include/bits/random.tcc (linear_congruential_engine::seed(_Sseq&))
4890         (mersenne_twister_engine::seed(_Sseq&))
4891         (subtract_with_carry_engine::seed(_Sseq&)): Change return types to
4892         match declarations.
4893         * include/ext/random (simd_fast_mersenne_twister_engine): Use
4894         __is_seed_seq to constrain function templates taking seed sequences.
4895         * include/ext/random.tcc (simd_fast_mersenne_twister_engine::seed):
4896         Change return type to match declaration.
4897         * testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
4898         New.
4899         * testsuite/26_numerics/random/independent_bits_engine/cons/
4900         seed_seq2.cc: New.
4901         * testsuite/26_numerics/random/linear_congruential_engine/cons/
4902         seed_seq2.cc: New.
4903         * testsuite/26_numerics/random/mersenne_twister_engine/cons/
4904         seed_seq2.cc: New.
4905         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
4906         * testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
4907         New.
4908         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/
4909         seed_seq2.cc: New.
4910         * testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/
4911         seed_seq2.cc: New.
4912
4913         PR libstdc++/83891
4914         * include/bits/fs_path.h (path::is_absolute()): Use same definition
4915         for all operating systems.
4916         * include/experimental/bits/fs_path.h (path::is_absolute()): Likewise.
4917         * testsuite/27_io/filesystem/path/query/is_absolute.cc: New.
4918         * testsuite/27_io/filesystem/path/query/is_relative.cc: Fix comment.
4919         * testsuite/experimental/filesystem/path/query/is_absolute.cc: New.
4920
4921         * testsuite/27_io/filesystem/path/decompose/extension.cc: Remove
4922         unused <vector> header.
4923         * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
4924         * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
4925         * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
4926         * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
4927         * testsuite/27_io/filesystem/path/query/has_relative_path.cc:
4928         Likewise.
4929         * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
4930         Likewise.
4931         * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
4932         * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
4933         * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
4934         * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
4935         * testsuite/experimental/filesystem/path/decompose/extension.cc:
4936         Likewise.
4937         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
4938         * testsuite/experimental/filesystem/path/query/has_extension.cc:
4939         Likewise.
4940         * testsuite/experimental/filesystem/path/query/has_filename.cc:
4941         Likewise.
4942         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
4943         Likewise.
4944         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
4945         Likewise.
4946         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
4947         Likewise.
4948         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
4949         Likewise.
4950         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
4951         Likewise.
4952         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
4953         * testsuite/experimental/filesystem/path/query/is_relative.cc:
4954         Likewise.
4955
4956         PR libstdc++/84159
4957         * include/bits/fs_path.h (path::operator/=, path::append): Construct
4958         temporary path before calling _M_append.
4959         (path::_M_append): Change parameter to path and implement C++17
4960         semantics.
4961         * testsuite/27_io/filesystem/path/append/path.cc: Add helper function
4962         and more examples from the standard.
4963         * testsuite/27_io/filesystem/path/append/source.cc: New.
4964         * testsuite/27_io/filesystem/path/decompose/filename.cc: Add comment.
4965         * testsuite/27_io/filesystem/path/nonmember/append.cc: New.
4966
4967         * include/std/variant (__gen_vtable_impl::__visit_invoke): Qualify
4968         __invoke to prevent ADL.
4969
4970 2018-05-14  Jonathan Wakely  <jwakely@redhat.com>
4971
4972         PR libstdc++/81256
4973         * include/bits/fstream.tcc (basic_filebuf::close): Do not swallow
4974         exceptions from _M_terminate_output().
4975         * include/std/fstream (basic_filebuf::~basic_filebuf): Swallow any
4976         exceptions from close().
4977         * testsuite/27_io/basic_filebuf/close/81256.cc: New.
4978
4979         * include/bits/valarray_array.h (__valarray_get_memory): Remove.
4980         (__valarray_get_storage): Call operator new directly. Remove ignored
4981         top-level restrict qualifier and add malloc attribute instead.
4982         (_Array<_Tp>::_Array(size_t)): Remove unused constructor.
4983
4984         PR libstdc++/67554
4985         * include/bits/valarray_array.h (_Array_copy_ctor<_Tp, true>)
4986         (_Array_copier<_Tp, true>): Do not pass null pointers to memcpy.
4987
4988         PR libstdc++/82966
4989         * include/bits/node_handle.h (_Node_handle_common::_M_swap): Use value
4990         instead of type.
4991         * testsuite/23_containers/set/modifiers/node_swap.cc: New.
4992
4993 2018-05-13  Ville Voutilainen  <ville.voutilainen@gmail.com>
4994
4995         PR libstdc++/80165
4996         * testsuite/20_util/variant/80165.cc: New.
4997
4998 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
4999
5000         * doc/xml/faq.xml: Link to C++17 status. Add note to outdated answer.
5001         * doc/xml/manual/debug_mode.xml: Add array and forward_list to list
5002         of C++11 containers with Debug Mode support.
5003         * doc/xml/manual/using.xml: Document Dual ABI for ios_base::failure.
5004         * doc/html/*: Regenerate.
5005
5006 2018-05-10  Jason Merrill  <jason@redhat.com>
5007
5008         * include/bits/regex_compiler.h (_S_cache_size): Change from
5009         function to variable.
5010
5011 2018-05-10  Edward Smith-Rowland  <3dw4rd@verizon.net>
5012
5013         PR libstdc++/83140 - assoc_legendre returns negated value when m is odd
5014         * include/tr1/legendre_function.tcc (__assoc_legendre_p): Add __phase
5015         argument defaulted to +1.  Doxy comments on same.
5016         * testsuite/special_functions/02_assoc_legendre/
5017         check_value.cc: Regen.
5018         * testsuite/tr1/5_numerical_facilities/special_functions/
5019         02_assoc_legendre/check_value.cc: Regen.
5020
5021 2018-05-10  Jonathan Wakely  <jwakely@redhat.com>
5022
5023         PR libstdc++/85729
5024         * include/bits/c++config.h (__replacement_assert): Add linkage
5025         specification.
5026         * include/bits/std_abs.h: Add comment to closing brace of block.
5027         * include/c_global/cstddef: Add linkage specification.
5028         * include/c_global/cstring: Likewise.
5029         * include/c_global/cwchar: Likewise.
5030
5031 2018-05-09  François Dumont  <fdumont@gcc.gnu.org>
5032
5033         * include/debug/safe_iterator.h (_Safe_iterator<>::_M_constant()):
5034         Rename in...
5035         (_Safe_iterator<>::_S_constant()): ...that.
5036         * include/debug/safe_local_iterator.h
5037         (_Safe_local_iterator<>::_M_constant()): Rename in...
5038         (_Safe_local_iterator<>::_S_constant()): ...that.
5039         * include/debug/formatter.h: Remove bits/cpp_type_traits.h include.
5040         (_Iterator_state::__rbegin): New.
5041         (_Iterator_state::__rmiddle): New.
5042         (_Iterator_state::__rend): New.
5043         (_Parameter::_Parameter(const _Safe_iterator<>&, const char*,
5044         _Is_iterator)): Use _Safe_iterator<>::_S_constant. Grab normal underlying
5045         iterator type.
5046         (_Parameter::_Parameter(const _Safe_local_iterator<>&, const char*,
5047         _Is_iterator)): Likewise.
5048         (_Parameter::_S_reverse_state(_Iterator_state)): New.
5049         (_Parameter(__gnu_cxx::__normal_iterator<> const&, const char*,
5050         _Is_iterator)): New.
5051         (_Parameter(std::reverse_iterator<> const&, const char*,
5052         _Is_iterator)): New.
5053         (_Parameter(std::reverse_iterator<_Safe_iterator<>> const&,
5054         const char*, _Is_iterator)): New.
5055         (_Parameter(std::move_iterator<> const&, const char*, _Is_iterator):
5056         New.
5057         (_Parameter(std::move_iterator<_Safe_iterator<>> const&, const char*,
5058         _Is_iterator)): New.
5059         * testsuite/24_iterators/move_iterator/debug_neg.cc: New.
5060         * testsuite/24_iterators/normal_iterator/debug_neg.cc: New.
5061         * testsuite/24_iterators/reverse_iterator/debug_neg.cc: New.
5062
5063 2018-05-09  Jonathan Wakely  <jwakely@redhat.com>
5064
5065         * include/bits/std_function.h (_Base_manager::_M_get_pointer):
5066         Use constexpr if in C++17 mode.
5067         (_Base_manager::_M_clone(_Any_data&, const _Any_data&, true_type)):
5068         Copy from const object.
5069         * testsuite/20_util/function/cons/non_copyconstructible.cc: New.
5070
5071 2018-05-08  François Dumont  <fdumont@gcc.gnu.org>
5072
5073         * src/c++11/debug.cc [_GLIBCXX_HAVE_EXECINFO_H]: Include execinfo.h.
5074         [_GLIBCXX_HAVE_EXECINFO_H](_Error_formatter::_M_error): Render
5075         backtrace.
5076
5077         * include/debug/macros.h (__glibcxx_check_valid_range_at): New.
5078         * include/debug/functions.h (__check_valid_range): Use latter.
5079         * include/debug/macros.h (__glibcxx_check_valid_constructor_range): New,
5080         use latter.
5081         * include/debug/deque
5082         (deque::deque<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
5083         * include/debug/forward_list
5084         (forward_list::forward_list<_Iter>(_Iter, _Iter, const _Alloc&)):
5085         Likewise.
5086         * include/debug/list
5087         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
5088         * include/debug/list
5089         (list::list<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
5090         * include/debug/map.h
5091         (map::map<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
5092         (map::map<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
5093         Likewise.
5094         * include/debug/multimap.h
5095         (multimap::multimap<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
5096         (multimap::multimap<_Iter>(_Iter, _Iter, const _Compare&,
5097         const _Alloc&)): Likewise.
5098         * include/debug/set.h
5099         (set::set<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
5100         (set::set<_Iter>(_Iter, _Iter, const _Compare&, const _Alloc&)):
5101         Likewise.
5102         * include/debug/multiset.h
5103         (multiset::multiset<_Iter>(_Iter, _Iter, const _Alloc&)): Likewise.
5104         (multiset::multiset<_Iter>(_Iter, _Iter, const _Compare&,
5105         const _Alloc&)): Likewise.
5106         * include/debug/string
5107         (basic_string::basic_string<_Iter>(_Iter, _Iter, const _Alloc&)):
5108         Likewise.
5109         * include/debug/unordered_map
5110         (unordered_map::unordered_map<_Iter>(_Iter, _Iter, const _Alloc&)):
5111         Likewise.
5112         (unordered_multimap::unordered_multimap<_Iter>(_Iter, _Iter,
5113         const _Alloc&)): Likewise.
5114         * include/debug/unordered_set
5115         (unordered_set::unordered_set<_Iter>(_Iter, _Iter, const _Alloc&)):
5116         Likewise.
5117         (unordered_multiset::unordered_multiset<_Iter>(_Iter, _Iter,
5118         const _Alloc&)): Likewise.
5119         * include/debug/vector
5120         (vector::vector<_Iter>(_Iter, _Iter, const _Alloc&)): Use latter.
5121
5122         * include/debug/formatter.h (_Error_formatter::_M_function): New.
5123         (_Error_formatter(const char*, unsigned int)): Adapt.
5124         (_Error_formatter::_M_at): Rename in...
5125         (_Error_formatter::_S_at): ...that and adapt.
5126         * include/debug/macros.h (_GLIBCXX_DEBUG_VERIFY_AT_F): New.
5127         (_GLIBCXX_DEBUG_VERIFY_AT, _GLIBCXX_DEBUG_VERIFY): Adapt.
5128         * src/c++11/debug.cc (_Error_formatter::_M_error): Render _M_function
5129         when available.
5130
5131 2018-05-08  Jonathan Wakely  <jwakely@redhat.com>
5132
5133         * include/bits/regex_automaton.h (_NFA_base::_M_paren_stack, _NFA):
5134         Use normal std::vector even in Debug Mode.
5135
5136         PR libstdc++/85672
5137         * include/Makefile.am [!ENABLE_FLOAT128]: Change c++config.h entry
5138         to #undef _GLIBCXX_USE_FLOAT128 instead of defining it to zero.
5139         * include/Makefile.in: Regenerate.
5140         * include/bits/c++config (_GLIBCXX_USE_FLOAT128): Move definition
5141         within conditional block.
5142
5143 2018-05-07  Jonathan Wakely  <jwakely@redhat.com>
5144
5145         * doc/xml/manual/using.xml (table.cmd_options): Document that the
5146         C++17 Filesystem implementation also needs -lstdc++fs.
5147
5148         PR libstdc++/85671
5149         * include/bits/fs_path.h (operator/): Permit copy elision.
5150         * include/experimental/bits/fs_path.h (operator/): Likewise.
5151
5152 2018-05-07  Edward Smith-Rowland  <3dw4rd@verizon.net>
5153
5154         Moar PR libstdc++/80506
5155         * include/bits/random.tcc (gamma_distribution::__generate_impl()):
5156         Fix magic number used in loop condition.
5157
5158 2018-05-04  Jonathan Wakely  <jwakely@redhat.com>
5159
5160         PR libstdc++/85642 fix is_nothrow_default_constructible<optional<T>>
5161         * include/std/optional (_Optional_payload): Add noexcept to default
5162         constructor. Re-indent.
5163         (_Optional_payload<_Tp, true, true, true>): Likewise. Add noexcept to
5164         constructor for copying disengaged payloads.
5165         (_Optional_payload<_Tp, true, false, true>): Likewise.
5166         (_Optional_payload<_Tp, true, true, false>): Likewise.
5167         (_Optional_payload<_Tp, true, false, false>): Likewise.
5168         * testsuite/20_util/optional/cons/85642.cc: New.
5169         * testsuite/20_util/optional/cons/value_neg.cc: Adjust dg-error lines.
5170
5171 2018-05-03  Jonathan Wakely  <jwakely@redhat.com>
5172
5173         PR libstdc++/82644
5174         * include/tr1/cmath [__STRICT_ANSI__] (hypergf, hypergl, hyperg): Use
5175         inline definitions instead of using-declarations.
5176         [__STRICT_ANSI__] (conf_hypergf, conf_hypergl, conf_hyperg): Likewise.
5177         * testsuite/tr1/5_numerical_facilities/special_functions/
5178         07_conf_hyperg/compile_cxx17.cc: New.
5179         * testsuite/tr1/5_numerical_facilities/special_functions/
5180         17_hyperg/compile_cxx17.cc: New.
5181
5182         PR libstdc++/84769
5183         * include/std/variant (visit): Qualify std::get call.
5184
5185         PR libstdc++/85632 use uintmax_t for arithmetic
5186         * src/filesystem/ops.cc (experimental::filesystem::space): Perform
5187         arithmetic in result type.
5188         * src/filesystem/std-ops.cc (filesystem::space): Likewise.
5189         * testsuite/27_io/filesystem/operations/space.cc: Check total capacity
5190         is greater than free space.
5191         * testsuite/experimental/filesystem/operations/space.cc: New.
5192
5193         * testsuite/20_util/remove_cvref/requirements/alias_decl.cc: New.
5194         * testsuite/20_util/remove_cvref/requirements/explicit_instantiation.cc:
5195         New.
5196         * testsuite/20_util/remove_cvref/value.cc: New.
5197         * testsuite/20_util/remove_cvref/value_ext.cc: New.
5198
5199         PR libstdc++/84087 LWG DR 2268 basic_string default arguments
5200         * include/bits/basic_string.h [_GLIBCXX_USE_CXX11_ABI=1]
5201         (append(const basic_string&, size_type, size_type)
5202         (assign(const basic_string&, size_type, size_type)
5203         (insert(size_type, const basic_string&, size_type, size_type)
5204         (replace(size_type,size_type,const basic_string&,size_type,size_type)
5205         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
5206         Add default arguments (LWG 2268).
5207         [_GLIBCXX_USE_CXX11_ABI=0]
5208         (append(const basic_string&, size_type, size_type)
5209         (assign(const basic_string&, size_type, size_type)
5210         (insert(size_type, const basic_string&, size_type, size_type)
5211         (replace(size_type,size_type,const basic_string&,size_type,size_type)
5212         (compare(size_type,size_type,constbasic_string&,size_type,size_type)):
5213         Likewise.
5214         * testsuite/21_strings/basic_string/dr2268.cc: New test.
5215
5216         PR libstdc++/84535
5217         * include/std/thread (thread::__not_same): New SFINAE helper.
5218         (thread::thread(_Callable&&, _Args&&...)): Add SFINAE constraint that
5219         first argument is not a std::thread. Add static assertion to check
5220         INVOKE expression is valid.
5221         (thread::thread(thread&), thread::thread(const thread&&)): Remove.
5222         (thread::_Invoke::_M_invoke, thread::_Invoke::operator()): Use
5223         __invoke_result for return types and remove exception specifications.
5224         * testsuite/30_threads/thread/cons/84535.cc: New.
5225
5226         * include/std/future (__async_result_of): Use __invoke_result instead
5227         of result_of.
5228
5229         * include/std/any (any_cast): Use __remove_cvref_t.
5230         * include/std/tuple (__make_tuple): Likewise.
5231         * include/std/type_traits (__remove_cvref_t): Define.
5232         (__result_of_memobj, __result_of_memfun): Use __remove_cvref_t.
5233         [__cplusplus > 201703L] (remove_cvref, remove_cvref_t): Define.
5234         * include/std/variant (__erased_hash): Use __remove_cvref_t.
5235
5236 2018-05-02  François Dumont  <fdumont@gcc.gnu.org>
5237
5238         * include/bits/deque.tcc (deque<>::_M_assign_aux): Cast to void to
5239         ensure overloaded comma not used.
5240         * include/bits/list.tcc (list<>::_M_assign_dispatch): Likewise.
5241         * include/bits/vector.tcc (vector<>::_M_assign_aux): Likewise.
5242         * include/bits/stl_bvector.h (vector<bool>::_M_assign_aux): Likewise.
5243         * testsuite/23_containers/deque/modifiers/assign/1.cc: New.
5244         * testsuite/23_containers/list/modifiers/assign/1.cc: New.
5245         * testsuite/23_containers/vector/bool/modifiers/assign/1.cc: New.
5246         * testsuite/23_containers/vector/modifiers/assign/1.cc: New.
5247
5248 2018-05-02  Jonathan Wakely  <jwakely@redhat.com>
5249
5250         PR libstdc++/68197
5251         * include/bits/ios_base.h (ios_base::iword, ios_base::pword): Cast
5252         indices to unsigned.
5253         * src/c++11/ios.cc (ios_base::_M_grow_words): Treat negative indices
5254         as failure. Refactor error handling.
5255         * testsuite/27_io/ios_base/storage/68197.cc: New.
5256
5257         PR libstdc++/57997
5258         PR libstdc++/83860
5259         * include/bits/gslice_array.h (gslice_array): Define default
5260         constructor as deleted, as per C++11 standard.
5261         * include/bits/mask_array.h (mask_array): Likewise.
5262         * include/bits/slice_array.h (slice_array): Likewise.
5263         * include/bits/valarray_after.h (_GBase, _GClos, _IBase, _IClos): Move
5264         to namespace __detail.
5265         (_GBase::_M_expr, _IBase::_M_expr): Use _ValArrayRef for type of data
5266         members.
5267         * include/bits/valarray_before.h (_ValArrayRef): New helper for type
5268         of data members in closure objects.
5269         (_FunBase, _ValFunClos, _RefFunClos, _UnBase, _UnClos, _BinBase)
5270         (_BinBase2, _BinBase1, _BinClos, _SBase, _SClos): Move to namespace
5271         __detail.
5272         (_FunBase::_M_expr, _UnBase::_M_expr, _BinBase::_M_expr1)
5273         (_BinBase::_M_expr2, _BinBase2::_M_expr1, _BinBase1::_M_expr2)
5274         (_SBase::_M_expr): Use _ValArrayRef for type of data members.
5275         * include/std/valarray (_UnClos, _BinClos, _SClos, _GClos, _IClos)
5276         (_ValFunClos, _RefFunClos): Move to namespace __detail and add
5277         using-declarations to namespace std.
5278         * testsuite/26_numerics/valarray/83860.cc: New.
5279
5280         * testsuite/backward/strstream_move.cc: Remove duplicate function
5281         call.
5282
5283         PR libstdc++/69608
5284         * include/backward/strstream (strstreambuf): Define move constructor
5285         and move assignment operator.
5286         (istrstream, ostrstream, strstream): Likewise.
5287         * testsuite/backward/strstream_move.cc: New.
5288
5289 2018-05-01  Tulio Magno Quites Machado Filho  <tuliom@linux.vnet.ibm.com>
5290
5291         PR libstdc++/84654
5292         * acinclude.m4: Set ENABLE_FLOAT128 instead of _GLIBCXX_USE_FLOAT128.
5293         * config.h.in: Remove references to _GLIBCXX_USE_FLOAT128.
5294         * configure: Regenerate.
5295         * include/Makefile.am: Replace the value of _GLIBCXX_USE_FLOAT128
5296         based on ENABLE_FLOAT128.
5297         * include/Makefile.in: Regenerate.
5298         * include/bits/c++config: Define _GLIBCXX_USE_FLOAT128.
5299         [!defined(__FLOAT128__) && !defined(__SIZEOF_FLOAT128__)]: Undefine
5300         _GLIBCXX_USE_FLOAT128.
5301
5302 2018-04-24  H.J. Lu  <hongjiu.lu@intel.com>
5303
5304         * configure: Regenerated.
5305
5306 2018-04-19  Jakub Jelinek  <jakub@redhat.com>
5307
5308         * configure: Regenerated.
5309
5310 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
5311             Jakub Jelinek  <jakub@redhat.com>
5312
5313         PR libstdc++/85442
5314         * src/c++11/Makefile.am: Don't generate debuginfo again for
5315         cxx11-ios_failure-lt.s and cxx11-ios_failure.s files.
5316         * src/c++11/Makefile.in: Regenerate.
5317
5318 2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
5319
5320         PR libstdc++/84442
5321         * testsuite/30_threads/thread/cons/terminate.cc
5322         [!_GLIBCXX_USE_C99_STDLIB] : Use _exit or std::exit instead of _Exit.
5323
5324 2018-04-18  David Malcolm  <dmalcolm@redhat.com>
5325
5326         PR jit/85384
5327         * configure: Regenerate.
5328
5329 2018-04-16  Jonathan Wakely  <jwakely@redhat.com>
5330
5331         * testsuite/experimental/filesystem/file_status/1.cc: Add
5332         -DUSE_FILESYSTEM_TS to dg-options.
5333         * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
5334         Likewise.
5335         * testsuite/experimental/filesystem/iterators/pop.cc: Likewise.
5336         * testsuite/experimental/filesystem/iterators/
5337         recursive_directory_iterator.cc: Likewise.
5338         * testsuite/experimental/filesystem/operations/absolute.cc: Likewise.
5339         * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
5340         * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
5341         * testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
5342         * testsuite/experimental/filesystem/operations/create_directories.cc:
5343         Likewise.
5344         * testsuite/experimental/filesystem/operations/create_directory.cc:
5345         Likewise.
5346         * testsuite/experimental/filesystem/operations/create_symlink.cc:
5347         Likewise.
5348         * testsuite/experimental/filesystem/operations/current_path.cc:
5349         Likewise.
5350         * testsuite/experimental/filesystem/operations/equivalent.cc: Likewise.
5351         * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
5352         * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
5353         * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
5354         * testsuite/experimental/filesystem/operations/last_write_time.cc:
5355         Likewise.
5356         * testsuite/experimental/filesystem/operations/permissions.cc:
5357         Likewise.
5358         * testsuite/experimental/filesystem/operations/read_symlink.cc:
5359         Likewise.
5360         * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
5361         * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
5362         * testsuite/experimental/filesystem/operations/status.cc: Likewise.
5363         * testsuite/experimental/filesystem/operations/temp_directory_path.cc:
5364         Likewise.
5365         * testsuite/experimental/filesystem/path/append/path.cc: Likewise.
5366         * testsuite/experimental/filesystem/path/assign/assign.cc: Likewise.
5367         * testsuite/experimental/filesystem/path/assign/copy.cc: Likewise.
5368         * testsuite/experimental/filesystem/path/compare/compare.cc: Likewise.
5369         * testsuite/experimental/filesystem/path/compare/path.cc: Likewise.
5370         * testsuite/experimental/filesystem/path/compare/strings.cc: Likewise.
5371         * testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
5372         * testsuite/experimental/filesystem/path/concat/strings.cc: Likewise.
5373         * testsuite/experimental/filesystem/path/construct/copy.cc: Likewise.
5374         * testsuite/experimental/filesystem/path/construct/default.cc:
5375         Likewise.
5376         * testsuite/experimental/filesystem/path/construct/locale.cc: Likewise.
5377         * testsuite/experimental/filesystem/path/construct/range.cc: Likewise.
5378         * testsuite/experimental/filesystem/path/construct/string_view.cc:
5379         Likewise.
5380         * testsuite/experimental/filesystem/path/decompose/extension.cc:
5381         Likewise.
5382         * testsuite/experimental/filesystem/path/decompose/filename.cc:
5383         Likewise.
5384         * testsuite/experimental/filesystem/path/decompose/parent_path.cc:
5385         Likewise.
5386         * testsuite/experimental/filesystem/path/decompose/relative_path.cc:
5387         Likewise.
5388         * testsuite/experimental/filesystem/path/decompose/root_directory.cc:
5389         Likewise.
5390         * testsuite/experimental/filesystem/path/decompose/root_name.cc:
5391         Likewise.
5392         * testsuite/experimental/filesystem/path/decompose/root_path.cc:
5393         Likewise.
5394         * testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
5395         * testsuite/experimental/filesystem/path/generic/generic_string.cc:
5396         Likewise.
5397         * testsuite/experimental/filesystem/path/itr/traversal.cc: Likewise.
5398         * testsuite/experimental/filesystem/path/modifiers/clear.cc: Likewise.
5399         * testsuite/experimental/filesystem/path/modifiers/make_preferred.cc:
5400         Likewise.
5401         * testsuite/experimental/filesystem/path/modifiers/remove_filename.cc:
5402         Likewise.
5403         * testsuite/experimental/filesystem/path/modifiers/replace_extension.cc:
5404         Likewise.
5405         * testsuite/experimental/filesystem/path/modifiers/replace_filename.cc:
5406         Likewise.
5407         * testsuite/experimental/filesystem/path/modifiers/swap.cc: Likewise.
5408         * testsuite/experimental/filesystem/path/native/string.cc: Likewise.
5409         * testsuite/experimental/filesystem/path/nonmember/hash_value.cc:
5410         Likewise.
5411         * testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
5412         * testsuite/experimental/filesystem/path/query/has_extension.cc:
5413         Likewise.
5414         * testsuite/experimental/filesystem/path/query/has_filename.cc:
5415         Likewise.
5416         * testsuite/experimental/filesystem/path/query/has_parent_path.cc:
5417         Likewise.
5418         * testsuite/experimental/filesystem/path/query/has_relative_path.cc:
5419         Likewise.
5420         * testsuite/experimental/filesystem/path/query/has_root_directory.cc:
5421         Likewise.
5422         * testsuite/experimental/filesystem/path/query/has_root_name.cc:
5423         Likewise.
5424         * testsuite/experimental/filesystem/path/query/has_root_path.cc:
5425         Likewise.
5426         * testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
5427         * testsuite/experimental/filesystem/path/query/is_relative.cc:
5428         Likewise.
5429
5430 2018-04-13  Jonathan Wakely  <jwakely@redhat.com>
5431
5432         * src/c++11/Makefile.am: Fix sed command.
5433         * src/c++11/Makefile.in: Regenerate.
5434
5435         * src/c++11/Makefile.am: Rewrite sed rule to be less fragile and to
5436         handle mangled names starting with double underscores on darwin.
5437         * src/c++11/Makefile.in: Regenerate.
5438
5439 2018-04-12  Jonathan Wakely  <jwakely@redhat.com>
5440
5441         * src/c++11/Makefile.am: Fix comment.
5442         * src/c++11/Makefile.in: Regenerate.
5443         * src/c++11/cxx11-ios_failure.cc: Fix comment.
5444         * src/c++98/ios_failure.cc: Likewise.
5445
5446         * src/c++11/ios.cc: Remove redundant macro definition.
5447
5448 2018-04-11  Jonathan Wakely  <jwakely@redhat.com>
5449
5450         * doc/xml/manual/abi.xml: Document header locations in recent
5451         releases.
5452         * doc/xml/manual/evolution.xml: Add API changes since GCC 5.
5453         * doc/xml/manual/spine.xml: Update copyright years.
5454         * doc/xml/manual/strings.xml: Adjust tolower example to avoid
5455         undefined behaviour.
5456         * doc/xml/manual/test.xml: Update outdated notes on VERIFY in tests.
5457         * doc/html/*: Regenerate.
5458
5459 2018-04-10  Jonathan Wakely  <jwakely@redhat.com>
5460
5461         * doc/xml/faq.xml: Update links to archived copy of SGI STL docs.
5462         * doc/xml/manual/backwards_compatibility.xml: Likewise.
5463         * doc/xml/manual/containers.xml: Likewise.
5464         * doc/xml/manual/debug_mode.xml: Likewise.
5465         * doc/xml/manual/extensions.xml: Likewise.
5466         * doc/xml/manual/policy_data_structures_biblio.xml: Likewise.
5467         * doc/xml/manual/using.xml: Likewise.
5468         * doc/xml/manual/utilities.xml: Likewise.
5469
5470         PR libstdc++/85222
5471         * src/c++11/Makefile.am [ENABLE_DUAL_ABI]: Add special rules for
5472         cxx11-ios_failure.cc to rewrite type info for __ios_failure.
5473         * src/c++11/Makefile.in: Regenerate.
5474         * src/c++11/cxx11-ios_failure.cc (__ios_failure, __iosfail_type_info):
5475         New types.
5476         [_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
5477         * src/c++11/ios.cc (__throw_ios_failure): Remove definition.
5478         * src/c++98/ios_failure.cc (__construct_ios_failure)
5479         (__destroy_ios_failure, is_ios_failure_handler): New functions.
5480         [!_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
5481         * testsuite/27_io/ios_base/failure/dual_abi.cc: New.
5482         * testsuite/27_io/basic_ios/copyfmt/char/1.cc: Revert changes to
5483         handler types, to always catch std::ios_base::failure.
5484         * testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
5485         * testsuite/27_io/basic_istream/extractors_arithmetic/char/
5486         exceptions_failbit.cc: Likewise.
5487         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
5488         exceptions_failbit.cc: Likewise.
5489         * testsuite/27_io/basic_istream/extractors_other/char/
5490         exceptions_null.cc: Likewise.
5491         * testsuite/27_io/basic_istream/extractors_other/wchar_t/
5492         exceptions_null.cc: Likewise.
5493         * testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
5494         * testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
5495         * testsuite/27_io/basic_ostream/inserters_other/char/
5496         exceptions_null.cc: Likewise.
5497         * testsuite/27_io/basic_ostream/inserters_other/wchar_t/
5498         exceptions_null.cc: Likewise.
5499         * testsuite/27_io/ios_base/storage/2.cc: Likewise.
5500
5501 2018-04-05  Jonathan Wakely  <jwakely@redhat.com>
5502
5503         * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Qualify
5504         __get calls to avoid ADL and avoid ambiguity due to Clang bug.
5505
5506 2018-04-03  Jonathan Wakely  <jwakely@redhat.com>
5507
5508         PR libstdc++/85183
5509         * include/std/variant (_Move_assign_base::operator=): Fix incorrect
5510         value categories.
5511         * testsuite/20_util/variant/85183.cc: New.
5512
5513 2018-03-26  Jonathan Wakely  <jwakely@redhat.com>
5514
5515         * include/std/variant (__get): Qualify calls to avoid ADL.
5516         (__select_index): Adjust whitespace.
5517         (variant): Add using-declaration to workaround Clang bug.
5518
5519 2018-03-22  Jonathan Wakely  <jwakely@redhat.com>
5520
5521         PR libstdc++/85040
5522         * include/bits/stl_function.h (greater::__not_overloaded)
5523         (less::__not_overloaded, greater_equal::__not_overloaded)
5524         (less_equal::__not_overloaded): Fix ambiguous specializations.
5525         * testsuite/20_util/function_objects/comparisons_pointer.cc: Add
5526         tests for type with overloaded operators.
5527
5528 2018-03-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
5529
5530         PR libstdc++/77691
5531         * testsuite/experimental/memory_resource/resource_adaptor.cc:
5532         xfail execution on 32-bit Solaris/x86.
5533
5534 2018-03-21  Jonathan Wakely  <jwakely@redhat.com>
5535
5536         * testsuite/20_util/function_objects/comparisons_pointer.cc: Use
5537         VERIFY instead of assert.
5538         * testsuite/20_util/hash/84998.cc: New test.
5539         * testsuite/23_containers/vector/cons/destructible_debug_neg.cc: New
5540         copy of test adjusted for Debug Mode.
5541         * testsuite/23_containers/vector/cons/destructible_neg.cc: Do not run
5542         test in Debug Mode.
5543
5544 2018-03-20  François Dumont  <fdumont@gcc.gnu.org>
5545
5546         PR libstdc++/84998
5547         * include/bits/stl_bvector.h: Fix std::hash friend declaration.
5548         * include/std/bitset: Likewise.
5549         * include/bits/stl_map.h (std::map<>): Fix _Rb_tree_merge_helper friend
5550         declaration.
5551         * include/bits/stl_multimap.h (std::multimap<>): Likewise.
5552         * include/bits/stl_multiset.h (std::multiset<>): Likewise.
5553         * include/bits/stl_set.h (std::set<>): Likewise.
5554         * include/bits/unordered_map.h (std::unordered_map<>): Fix
5555         _Hash_merge_helper friend declaration.
5556         (std::unordered_multimap<>): Likewise.
5557         * include/bits/unordered_set.h (std::unordered_set<>): Likewise.
5558         (std::unordered_multiset<>): Likewise.
5559
5560 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
5561
5562         * doc/xml/api.xml: www.fsf.org has moved to https. Also omit
5563         trailing slash for domain level link.
5564         * doc/xml/faq.xml: Ditto.
5565         * doc/xml/manual/appendix_free.xml (software): Ditto.
5566         * doc/xml/manual/intro.xml: Ditto.
5567         * doc/xml/manual/spine.xml: Ditto.
5568         * doc/xml/spine.xml: Ditto.
5569
5570 2018-03-19  Gerald Pfeifer  <gerald@pfeifer.com>
5571
5572         * doc/xml/manual/documentation_hacking.xml: Adjust link to
5573         docbook.org.
5574
5575 2018-03-17  Jonathan Wakely  <jwakely@redhat.com>
5576
5577         * testsuite/20_util/function_objects/comparisons_pointer.cc: Adjust
5578         to compile as C++98.
5579
5580 2018-03-14  Jonathan Wakely  <jwakely@redhat.com>
5581
5582         PR libstdc++/78420
5583         * include/bits/stl_function.h (greater<_Tp*>, less<_Tp*>)
5584         (greater_equal<_Tp*>, less_equal<_Tp>*): Add partial specializations
5585         to ensure total order for pointers.
5586         (greater<void>, less<void>, greater_equal<void>, less_equal<void>):
5587         Add operator() overloads for pointer arguments and make generic
5588         overloads dispatch to new _S_cmp functions when comparisons would
5589         use built-in operators for pointers.
5590         * testsuite/20_util/function_objects/comparisons_pointer.cc: New.
5591
5592 2018-03-12  Jonathan Wakely  <jwakely@redhat.com>
5593
5594         PR libstdc++/84773
5595         PR libstdc++/83662
5596         * crossconfig.m4: Check for aligned_alloc etc. on freebsd and mingw32.
5597         * configure: Regenerate.
5598         * include/c_global/cstdlib [_GLIBCXX_HAVE_ALIGNED_ALLOC]
5599         (aligned_alloc): Add using-declaration.
5600         * testsuite/18_support/aligned_alloc/aligned_alloc.cc: New test.
5601
5602 2018-03-09  François Dumont  <fdumont@gcc.gnu.org>
5603
5604         * python/libstdcxx/v6/printers.py (build_libstdcxx_dictionary):
5605         Fix std::_Fwd_list_iterator and std::_Fwd_list_const_iterator printers
5606         registration.
5607
5608 2018-03-09  Jonathan Wakely  <jwakely@redhat.com>
5609
5610         PR libstdc++/84769
5611         * include/std/variant (get<_Tp, _Types...>, get_if<_Tp, _Types...>):
5612         Qualify calls to get<_Np, Types...> and get_if<_Np, _Types...>.
5613
5614         src/filesystem/ops.cc (create_dir): Pass error_code to is_directory.
5615         src/filesystem/std-ops.cc (create_dir): Likewise.
5616
5617 2018-03-08  François Dumont  <fdumont@gcc.gnu.org>
5618
5619         * python/libstdcxx/v6/printers.py (NodeIteratorPrinter): New.
5620         (StdListIteratorPrinter): Inherit from latter.
5621         (StdFwdListIteratorPrinter): New, inherit from latter.
5622         (StdDebugIteratorPrinter.to_string): Use non-debug iterator printer
5623         when iterator has no associated container.
5624         (build_libstdcxx_dictionary): Add __gnu_cxx::_Fwd_list_iterator and
5625         __gnu_cxx::_Fwd_list_const_iterator printers. Remove __norm namespace
5626         registrations.
5627         * testsuite/libstdc++-prettyprinters/debug.cc: Adapt.
5628         * testsuite/libstdc++-prettyprinters/debug_cxx11.cc: Adapt.
5629
5630 2018-03-06  Ville Voutilainen  <ville.voutilainen@gmail.com>
5631
5632         PR libstdc++/84601
5633         * include/std/optional (_Optional_payload): Split into multiple
5634         specializations that can handle different cases of trivial or
5635         non-trivial assignment operators.
5636         * testsuite/20_util/optional/84601.cc: New.
5637         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
5638
5639 2018-03-02  Jonathan Wakely  <jwakely@redhat.com>
5640
5641         PR libstdc++/84671
5642         * include/bits/parse_numbers.h (_Number_help): Add partial
5643         specialization to handle digit separators. Adjust partial
5644         specialization for recursion temrination to require _Pow == 1ULL.
5645         * testsuite/20_util/duration/literals/84671.cc: New
5646
5647 2018-02-27  Ville Voutilainen  <ville.voutilainen@gmail.com>
5648
5649         Implement the missing bits of LWG 2769
5650         * include/std/any (any_cast(const any&)): Add static_assert.
5651         (any_cast(any&)): Likewise.
5652         (any_cast(any&&)): Likewise, and remove the handling
5653         for copyable-but-not-movable type.
5654         * testsuite/20_util/any/misc/any_cast.cc: Adjust.
5655         * testsuite/20_util/any/misc/any_cast_neg.cc: Likewise, and
5656         add new tests.
5657
5658 2018-02-23  Jonathan Wakely  <jwakely@redhat.com>
5659
5660         PR libstdc++/84532
5661         * include/std/thread (thread::__make_invoker): Construct tuple
5662         directly instead of using make_tuple.
5663         * testsuite/30_threads/async/84532.cc: New.
5664         * testsuite/30_threads/thread/84532.cc: New.
5665
5666 2018-02-20  François Dumont  <fdumont@gcc.gnu.org>
5667
5668         * include/ext/aligned_buffer.h [_GLIBCXX_INLINE_VERSION]
5669         (template<> __aligned_buffer): Define as __aligned_membuf alias.
5670
5671 2018-02-19  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
5672
5673         PR target/84148
5674         * configure: Regenerate.
5675
5676 2018-02-15  Jonathan Wakely  <jwakely@redhat.com>
5677
5678         PR libstdc++/81797
5679         * configure.ac (INCLUDE_DIR_NOTPARALLEL): Define.
5680         * configure: Regenerate.
5681         * include/Makefile.am (INCLUDE_DIR_NOTPARALLEL): Add .NOTPARALLEL when
5682         defined.
5683         * include/Makefile.in: Regenerate.
5684
5685 2018-01-29  Jonathan Wakely  <jwakely@redhat.com>
5686
5687         PR libstdc++/83833
5688         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc:
5689         Add -ffloat-store to options for m68k and ia32.
5690
5691         * doc/xml/faq.xml: Update copyright years.
5692         * doc/html/*: Regenerate.
5693
5694         PR libstdc++/83658
5695         * include/std/any (any::__do_emplace): Only set _M_manager after
5696         constructing the contained object.
5697         * testsuite/20_util/any/misc/any_cast_neg.cc: Adjust dg-error line.
5698         * testsuite/20_util/any/modifiers/83658.cc: New test.
5699
5700 2018-01-25  Jonathan Wakely  <jwakely@redhat.com>
5701
5702         PR libstdc++/81076
5703         * include/c_global/cstddef (__byte_operand): Define primary template.
5704         * testsuite/18_support/byte/81076.cc: New test.
5705
5706 2018-01-19  Christophe Lyon  <christophe.lyon@linaro.org>
5707
5708         * testsuite/ext/special_functions/airy_ai/check_nan.cc: Fix
5709         dg-options and dg-add-options order.
5710         * testsuite/ext/special_functions/airy_bi/check_nan.cc: Likewise.
5711         * testsuite/ext/special_functions/conf_hyperg/check_nan.cc:
5712         Likewise.
5713         * testsuite/ext/special_functions/hyperg/check_nan.cc: Likewise.
5714         * testsuite/special_functions/01_assoc_laguerre/check_nan.cc:
5715         Likewise.
5716         * testsuite/special_functions/02_assoc_legendre/check_nan.cc:
5717         Likewise.
5718         * testsuite/special_functions/03_beta/check_nan.cc: Likewise.
5719         * testsuite/special_functions/04_comp_ellint_1/check_nan.cc:
5720         Likewise.
5721         * testsuite/special_functions/05_comp_ellint_2/check_nan.cc:
5722         Likewise.
5723         * testsuite/special_functions/06_comp_ellint_3/check_nan.cc:
5724         Likewise.
5725         * testsuite/special_functions/06_comp_ellint_3/pr66689.cc:
5726         Likewise.
5727         * testsuite/special_functions/07_cyl_bessel_i/check_nan.cc:
5728         Likewise.
5729         * testsuite/special_functions/08_cyl_bessel_j/check_nan.cc:
5730         Likewise.
5731         * testsuite/special_functions/09_cyl_bessel_k/check_nan.cc:
5732         Likewise.
5733         * testsuite/special_functions/10_cyl_neumann/check_nan.cc:
5734         Likewise.
5735         * testsuite/special_functions/11_ellint_1/check_nan.cc: Likewise.
5736         * testsuite/special_functions/12_ellint_2/check_nan.cc: Likewise.
5737         * testsuite/special_functions/13_ellint_3/check_nan.cc: Likewise.
5738         * testsuite/special_functions/13_ellint_3/pr66689.cc: Likewise.
5739         * testsuite/special_functions/14_expint/check_nan.cc: Likewise.
5740         * testsuite/special_functions/15_hermite/check_nan.cc: Likewise.
5741         * testsuite/special_functions/16_laguerre/check_nan.cc: Likewise.
5742         * testsuite/special_functions/17_legendre/check_nan.cc: Likewise.
5743         * testsuite/special_functions/18_riemann_zeta/check_nan.cc:
5744         Likewise.
5745         * testsuite/special_functions/19_sph_bessel/check_nan.cc:
5746         Likewise.
5747         * testsuite/special_functions/20_sph_legendre/check_nan.cc:
5748         Likewise.
5749         * testsuite/special_functions/21_sph_neumann/check_nan.cc:
5750         Likewise.
5751
5752 2018-01-18  Uros Bizjak  <ubizjak@gmail.com>
5753
5754         * configure.ac (AC_CHECK_HEADERS): Add linux/types.h.  Conditionally
5755         include linux/types.h when checking linux/random.h header.
5756         * config.h.in: Regenerate.
5757         * configure: Ditto.
5758         * src/c++11/random.cc: Conditionally include linux/types.h.
5759
5760 2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>
5761
5762         * testsuite/17_intro/names.cc: Undefine 'y' on SPARC/Linux.
5763
5764 2018-01-16  Jonathan Wakely  <jwakely@redhat.com>
5765
5766         PR libstdc++/83834
5767         * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace std::c[a-g]* wildcard
5768         pattern with exact match for std::cerr.
5769
5770 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
5771
5772         PR libstdc++/83833
5773         * include/bits/random.h (chi_squared_distribution::param): Update
5774         gamma distribution parameter.
5775         * testsuite/26_numerics/random/chi_squared_distribution/83833.cc: New
5776         test.
5777
5778         PR libstdc++/83830
5779         * include/std/type_traits (has_unique_object_representations_v): Add
5780         variable template.
5781         * testsuite/20_util/has_unique_object_representations/value.cc: Check
5782         variable template.
5783
5784 2018-01-15  Ville Voutilainen  <ville.voutilainen@gmail.com>
5785
5786         Make optional conditionally
5787         trivially_{copy,move}_{constructible,assignable}
5788         * include/std/optional (_Optional_payload): Fix the comment in
5789         the class head and turn into a primary and one specialization.
5790         (_Optional_payload::_M_engaged): Strike the NSDMI.
5791         (_Optional_payload<_Tp, false>::operator=(const _Optional_payload&)):
5792         New.
5793         (_Optional_payload<_Tp, false>::operator=(_Optional_payload&&)):
5794         Likewise.
5795         (_Optional_payload<_Tp, false>::_M_get): Likewise.
5796         (_Optional_payload<_Tp, false>::_M_reset): Likewise.
5797         (_Optional_base_impl): Likewise.
5798         (_Optional_base): Turn into a primary and three specializations.
5799         (optional(nullopt)): Change the base init.
5800         * testsuite/20_util/optional/assignment/8.cc: New.
5801         * testsuite/20_util/optional/cons/trivial.cc: Likewise.
5802         * testsuite/20_util/optional/cons/value_neg.cc: Adjust.
5803
5804 2018-01-15  Jonathan Wakely  <jwakely@redhat.com>
5805
5806         PR libstdc++/80276
5807         * python/libstdcxx/v6/printers.py (strip_inline_namespaces): New.
5808         (get_template_arg_list): New.
5809         (StdVariantPrinter._template_args): Remove, use get_template_arg_list
5810         instead.
5811         (TemplateTypePrinter): Rewrite to work with gdb.Type objects instead
5812         of strings and regular expressions.
5813         (add_one_template_type_printer): Adapt to new TemplateTypePrinter.
5814         (FilteringTypePrinter): Add docstring. Match using startswith. Use
5815         strip_inline_namespaces instead of strip_versioned_namespace.
5816         (add_one_type_printer): Prepend namespace to match argument.
5817         (register_type_printers): Add type printers for char16_t and char32_t
5818         string types and for types using cxx11 ABI. Update calls to
5819         add_one_template_type_printer to provide default argument dicts.
5820         * testsuite/libstdc++-prettyprinters/80276.cc: New test.
5821         * testsuite/libstdc++-prettyprinters/whatis.cc: Remove tests for
5822         basic_string<unsigned char> and basic_string<signed char>.
5823         * testsuite/libstdc++-prettyprinters/whatis2.cc: Duplicate whatis.cc
5824         to test local variables, without overriding _GLIBCXX_USE_CXX11_ABI.
5825
5826 2018-01-14  Andreas Schwab  <schwab@linux-m68k.org>
5827
5828         PR libstdc++/81092
5829         * config/abi/post/ia64-linux-gnu/baseline_symbols.txt: Update.
5830
5831 2018-01-13  Tim Shen  <timshen@google.com>
5832
5833         PR libstdc++/83601
5834         * include/bits/regex.tcc (regex_replace): Fix escaping in sed.
5835         * testsuite/28_regex/algorithms/regex_replace/char/pr83601.cc: Tests.
5836         * testsuite/28_regex/algorithms/regex_replace/wchar_t/pr83601.cc: Tests.
5837
5838 2018-01-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
5839
5840         PR libstdc++/64054
5841         * testsuite/27_io/basic_ostream/inserters_arithmetic/char/hexfloat.cc:
5842         Remove dg-xfail-run-if.
5843
5844 2018-01-10  François Dumont  <fdumont@gcc.gnu.org>
5845
5846         * include/bits/forward_list.h
5847         (_Fwd_list_node_base(_Fwd_list_node_base&&)): New.
5848         (_Fwd_list_node_base& operator=(_Fwd_list_node_base&&)): New.
5849         (_Fwd_list_node_base(const _Fwd_list_node_base&)): Explicit delete.
5850         (_Fwd_list_node_base& operator=(const _Fwd_list_node_base&)): Likewise.
5851         (_Fwd_list_impl()): Add noexcept qualification.
5852         (_Fwd_list_impl(const _Node_alloc_type&)): Delete.
5853         (_Fwd_list_impl(_Fwd_list_impl&&)): New, default.
5854         (_Fwd_list_impl(_Fwd_list_impl&&, _Node_alloc_type&&)): New.
5855         (_Fwd_list_base()): Default.
5856         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&, true_type)): New.
5857         (_Fwd_list_base(_Fwd_list_base&&)): Default.
5858         (forward_list<>()): Default.
5859         (forward_list<>(forward_list&&)): Default.
5860         (forward_list(forward_list&&, _Node_alloc_type&&, false_type)): New.
5861         (forward_list(forward_list&&, _Node_alloc_type&&, true_type)): New.
5862         (forward_list(forward_list&&, const _Alloc&)): Adapt to use latters.
5863         * include/bits/forward_list.tcc
5864         (_Fwd_list_base(_Fwd_list_base&&, _Node_alloc_type&&)): Adapt to use
5865         _M_impl._M_head move assignment.
5866         (forward_list<>::merge(forward_list<>&&, _Comp)): Likewise.
5867         * testsuite/23_containers/forward_list/allocator/default_init.cc: New.
5868
5869 2018-01-09  Jonathan Wakely  <jwakely@redhat.com>
5870
5871         PR libstdc++/80276
5872         * python/libstdcxx/v6/printers.py (SharedPointerPrinter)
5873         (UniquePointerPrinter): Print correct template argument, not type of
5874         the pointer.
5875         (TemplateTypePrinter._recognizer.recognize): Handle failure to lookup
5876         a type.
5877         * testsuite/libstdc++-prettyprinters/cxx11.cc: Test unique_ptr of
5878         array type.
5879         * testsuite/libstdc++-prettyprinters/cxx17.cc: Test shared_ptr and
5880         weak_ptr of array types.
5881
5882 2018-01-09  François Dumont  <fdumont@gcc.gnu.org>
5883
5884         PR libstdc++/83709
5885         * include/bits/hashtable_policy.h
5886         (__distance_fwd(_Iterator, _Iterator, input_iterator_tag)): Return 1 if
5887         __first != __last.
5888         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, true_type)): New.
5889         (_Insert_base::_M_insert_range(_Ite, _Ite, _NodeGetter, false_type)):
5890         Add false_type parameter.
5891         (_Insert_base::insert): Adapt.
5892         * include/bits/hashtable.h (_Hashtable::operator=(initializzr_list<>)):
5893         Adapt.
5894         (_Hashtable::_M_insert(_Arg&&, const _NodeGen&, true_type, size_t)):
5895          Add __n_elt parameter, defaulted to 1.
5896         (_Hashtable::_M_insert_unique_node): Likewise. Use it to call rehash
5897         policy _M_need_rehash.
5898         (_Hashtable::_M_merge_unique): Pass target number of elements to add to
5899         produce only 1 rehash if necessary.
5900         * testsuite/23_containers/unordered_map/insert/83709.cc: New.
5901         * testsuite/23_containers/unordered_set/insert/83709.cc: New.
5902
5903 2018-01-09  Juraj Oršulić  <juraj.orsulic@fer.hr>
5904             Jonathan Wakely  <jwakely@redhat.com>
5905
5906         PR libstdc++/59253 (partial)
5907         * python/libstdcxx/v6/printers.py (SmartPtrIterator): Common iterator
5908         type for pointer stored by shared_ptr, weak_ptr and unique_ptr.
5909         (SharedPointerPrinter, UniquePointerPrinter): Treat stored values as
5910         children.
5911         * testsuite/libstdc++-prettyprinters/cxx11.cc: Update expected output
5912         of unique_ptr printer.
5913         * testsuite/libstdc++-prettyprinters/shared_ptr.cc: Update expected
5914         output of shared_ptr printer.
5915
5916 2018-01-05  Jonathan Wakely  <jwakely@redhat.com>
5917
5918         PR libstdc++/83626
5919         * src/filesystem/ops.cc (remove(const path&, error_code&)): Remove
5920         unnecessary symlink_status call.
5921         (remove_all(const path&, error_code&)): Use filesystem::remove.
5922         * src/filesystem/std-ops.cc: Likewise.
5923
5924         PR libstdc++/83279
5925         * src/filesystem/std-ops.cc  (do_copy_file): Use non-null offset with
5926         sendfile.
5927
5928         PR libstdc++/83626
5929         * src/filesystem/ops.cc (remove(const path&, error_code&)): Do not
5930         report an error for ENOENT.
5931         (remove_all(const path&)): Fix type of result variable.
5932         (remove_all(const path&, error_code&)): Use non-throwing increment
5933         for directory iterator. Call POSIX remove directly to avoid redundant
5934         calls to symlink_status. Do not report errors for ENOENT.
5935         * src/filesystem/std-ops.cc: Likewise.
5936         * testsuite/27_io/filesystem/operations/remove_all.cc: Test throwing
5937         overload.
5938         * testsuite/experimental/filesystem/operations/remove_all.cc:
5939         Likewise.
5940
5941 2018-01-04  Jonathan Wakely  <jwakely@redhat.com>
5942
5943         PR libstdc++/83626
5944         * src/filesystem/ops.cc (remove(const path&, error_code&))): Remove
5945         redundant call to ec.clear().
5946         (remove_all(const path&, error_code&))): Do not return an error for
5947         non-existent paths.
5948         * src/filesystem/std-ops.cc: Likewise.
5949         * testsuite/27_io/filesystem/operations/remove.cc: New test.
5950         * testsuite/27_io/filesystem/operations/remove_all.cc: Fix expected
5951         results for non-existent paths.
5952         * testsuite/experimental/filesystem/operations/remove.cc: New test.
5953         * testsuite/experimental/filesystem/operations/remove_all.cc: Fix
5954         expected results for non-existent paths.
5955
5956         * include/bits/fs_ops.h (exists(const path&, error_code&))): Only
5957         check status_known once.
5958         * include/experimental/bits/fs_ops.h: Likewise.
5959
5960         PR libstdc++/83607
5961         * include/std/functional (__is_byte_like): New trait.
5962         (__is_std_equal_to): Remove.
5963         (__boyer_moore_base_t): Use __is_byte_like instead of
5964         __is_std_equal_to.
5965         * include/experimental/functional (__is_std_equal_to): Remove.
5966         (__boyer_moore_base_t): Use __is_byte_like instead of
5967         __is_std_equal_to.
5968         * testsuite/20_util/function_objects/83607.cc: New test.
5969
5970 2018-01-03  Ville Voutilainen  <ville.voutilainen@gmail.com>
5971
5972         Protect optional's deduction guide with the feature macro
5973         * include/std/optional: Use the feature macro.
5974
5975 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
5976
5977         Update copyright years.
5978 \f
5979 Copyright (C) 2018 Free Software Foundation, Inc.
5980
5981 Copying and distribution of this file, with or without modification,
5982 are permitted in any medium without royalty provided the copyright
5983 notice and this notice are preserved.