1 2019-04-26 H.J. Lu <hongjiu.lu@intel.com>
3 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
5 2019-04-26 Jonathan Wakely <jwakely@redhat.com>
7 * include/experimental/bits/fs_path.h
8 (path::_S_convert_loc<_InputIterator>): Create const std::string to
9 avoid redundant call to _S_convert_loc with non-const pointers.
11 * testsuite/20_util/variant/run.cc: Use a new Hashable type to test
12 hashing, because pmr::string depends on _GLIBCXX_USE_CXX11_ABI==1.
13 * testsuite/21_strings/basic_string/hash/hash.cc
14 [!_GLIBCXX_USE_CXX11_ABI]: Don't test pmr strings.
15 * testsuite/21_strings/basic_string/hash/hash_char8_t.cc
16 [!_GLIBCXX_USE_CXX11_ABI]: Likewise.
18 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace wildcard that matches
19 wstring::_M_replace_dispatch with more specific patterns.
20 * include/bits/fs_path.h (path::_S_convert_loc<_InputIterator>):
21 Create const std::string to avoid redundant call to _S_convert_loc
22 with non-const pointers.
23 * include/bits/locale_conv.h (__do_str_codecvt): Use if-constexpr to
24 avoid unnecessary basic_string::assign instantiations.
26 * include/std/memory (__uses_alloc_args): Add string-literal to
27 static_assert, to match the one in __uses_alloc.
28 [__cpp_concepts] (_Std_pair): Use C++2a syntax for concept.
29 * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc: Check
30 for recursive uses-allocator construction of nested pairs.
31 * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc:: Add
34 2019-04-26 Jakub Jelinek <jakub@redhat.com>
36 * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Update.
37 * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update.
38 * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update.
39 * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: Update.
41 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
42 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
43 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
44 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
45 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
46 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
47 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
49 2019-04-25 Jonathan Wakely <jwakely@redhat.com>
52 * doc/xml/manual/status_cxx2020.xml: Amend P0591R4 status.
53 * include/std/scoped_allocator [__cplusplus > 201703L]
54 (scoped_allocator_adaptor::construct): Define in terms of
55 uses_allocator_construction_args, as per P0591R4.
56 * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc: New test.
57 * testsuite/util/testsuite_allocator.h: Remove name of unused
60 2019-04-24 Jonathan Wakely <jwakely@redhat.com>
62 * doc/xml/manual/status_cxx2017.xml: Document P0024R2 status.
63 * doc/html/*: Regenerate.
65 * include/bits/fs_path.h (operator<, operator<=, operator>)
66 (operator>=, operator==, operator!=): Make hidden friends, as per
68 * testsuite/27_io/filesystem/path/native/string-char8_t.cc: Fix
70 * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
72 * include/std/any (any::any(ValueType&&)): Use __and_v.
73 * include/std/numeric (midpoint(T, T, T), midpoint(T*, T*, T*)):
76 * include/std/tuple (apply): Use remove_reference_t instead of decay_t
78 * include/std/type_traits (__result_of_memfun): Use remove_reference
79 instead of __remove_cvref_t and remove redundant is_same check.
80 (__inv_unwrap): Use __remove_cvref_t instead of decay_t.
82 * include/experimental/string_view (basic_string_view::pointer)
83 (basic_string_view::reference): Fix to refer to non-const value_type.
84 * include/bits/basic_string.h (basic_string): Use __sv_check and
85 __sv_limit instead of basic_string_view::_M_check and
86 basic_string_view::_M_limit.
87 * include/std/string_view (__sv_check, __sv_limit): New
88 helper functions to replace basic_string_view::_M_check and
89 basic_string_view::_M_limit.
90 (basic_string_view): Add static assertions to enforce ill-formed
91 requirement for traits_type::char_type from P1148R0, and to enforce
92 required properties of char-like types.
93 (basic_string_view::pointer, basic_string_view::reference): Fix to
94 refer to non-const value_type.
95 (basic_string_view::operator[], basic_string_view::at)
96 (basic_string_view::front, basic_string_view::back)
97 (basic_string_view::data): Use const_reference and const_pointer
98 typedefs for return types.
99 (basic_string_view::_M_check, basic_string_view::_M_limit): Remove.
100 (hash<wstring_view>): Fix argument_type typedef.
101 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
102 char/1.cc: Fix expected return type of basic_string_view::data().
103 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
104 wchar_t/1.cc: Likewise.
105 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
107 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
108 wchar_t/1.cc: Likewise.
109 * testsuite/21_strings/basic_string_view/requirements/traits_neg.cc:
111 * testsuite/21_strings/basic_string_view/requirements/typedefs.cc:
112 Check reference and pointer typedefs.
113 * testsuite/experimental/string_view/requirements/typedefs.cc:
115 * testsuite/experimental/string_view/modifiers/remove_prefix/char/1.cc:
116 Fix expected return type of basic_string_view::data().
117 * testsuite/experimental/string_view/modifiers/remove_prefix/wchar_t/
119 * testsuite/experimental/string_view/modifiers/remove_suffix/char/1.cc:
121 * testsuite/experimental/string_view/modifiers/remove_suffix/wchar_t/
125 * include/std/any (__any_caster): Use remove_cv_t instead of decay_t.
126 Avoid a runtime check for types that can never be stored in std::any.
127 * testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with
130 PR libstdc++/90220 (partial)
131 * include/std/any (any_cast<T>(any*), any_cast<T>(const any*)): Do
132 not attempt ill-formed static_cast to pointers to non-object types.
133 * testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with
136 * testsuite/20_util/variant/run.cc: Catch exception by reference to
137 prevent -Wcatch-value warning.
139 * include/std/variant (__variant_construct): Use template parameter
140 type instead of equivalent decltype-specifier.
141 (_Move_ctor_base<false, Types...>::_Move_ctor_base(_Move_ctor_base&&)):
142 Replace forward with move.
143 (_Move_ctor_base<false, Types...>::_M_destructive_move)
144 (_Move_ctor_base<false, Types...>::_M_destructive_copy)
145 (_Move_ctor_base<true, Types...>::_M_destructive_move)
146 (_Move_ctor_base<true, Types...>::_M_destructive_copy): Only set the
147 index after construction succeeds.
148 (_Copy_assign_base<false, Types...>::operator=): Remove redundant
149 if-constexpr checks that are always true. Use __remove_cvref_t instead
150 of remove_reference so that is_nothrow_move_constructible check
151 doesn't use a const rvalue parameter. In the potentially-throwing case
152 construct a temporary and move assign it, as per LWG 2904.
153 (_Move_assign_base<false, Types...>::operator=): Remove redundant
154 if-constexpr checks that are always true. Use emplace as per LWG 2904.
155 (variant::operator=(T&&)): Only use emplace conditionally, otherwise
156 construct a temporary and move assign from it, as per LWG 2904.
157 * testsuite/20_util/variant/exception_safety.cc: Check that
158 assignment operators have strong exception safety guarantee.
160 2019-04-23 Thomas Rodgers <trodgers@redhat.com>
162 Document PSTL linker flags
164 * doc/xml/manual/using.xml: Add PSTL linker flags to table 3.1.
166 2019-04-23 Jonathan Wakely <jwakely@redhat.com>
168 * include/std/variant (__detail::__variant::_Traits): Make
169 _S_trivial_copy_assign depend on _S_trivial_copy_ctor and make
170 _S_trivial_move_assign depend on _S_trivial_move_ctor, as per
172 (__detail::__variant::_Copy_assign_alias): Only depend on
173 _S_trivial_copy_assign, which subsumes _S_trivial_copy_ctor now.
174 * testsuite/20_util/variant/compile.cc: Correct checks for trivial
175 move assignment operators.
178 * include/std/variant (variant::__not_self): New helper for the
179 is_same_v<remove_cvref_t<T>, variant>==false constraints.
180 (variant::__to_type_impl): Remove.
181 (variant::__to_type): Add default argument to check pack size, instead
182 of using __to_type_impl.
183 (variant::__accepted_type): Add default argument using __not_self.
184 (variant::__is_in_place_tag, variant::__not_in_place_tag): New helpers
185 for variant(T&&) constructor constraint.
186 (variant::variant(T&&)): Use __not_in_place_tag in constraints.
187 Extract __accepted_type into a named template parameter for reuse in
188 other constraints and in the exception specification.
189 (variant::variant(in_place_type_t<T>, Args&&...))
190 (variant::variant(in_place_type_t<T>, initializer_list<U>, Args&&...))
191 (variant::variant(in_place_index_t<T>, Args&&...))
192 (variant::variant(in_place_index_t<T>, initializer_list<U>, Args&&...))
193 (variant::operator=T&&)): Remove redundant && from trait arguments.
194 * testsuite/20_util/variant/compile.cc: Check variant(T&&) constructor
195 isn't used for in_place_type or in_place_index arguments.
197 * include/std/type_traits (unwrap_reference_t): Define for C++2a.
198 (unwrap_ref_decay): Remove inheritance from unwrap_reference.
199 * testsuite/20_util/unwrap_reference/1.cc: Adjust test to use alias.
201 2019-04-23 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
202 Bernd Edlinger <bernd.edlinger@hotmail.de>
203 Jakub Jelinek <jakub@redhat.com>
206 * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Add
207 general-regs-only target attribute for ARM.
209 2019-04-23 Jonathan Wakely <jwakely@redhat.com>
212 * include/bits/basic_string.h (_Never_valueless_alt): Make partial
213 specialization also depend on is_nothrow_move_constructible.
214 * include/std/variant (__detail::__variant::__never_valueless()):
215 Only true if the variant would have a move assignment operator.
216 (__detail::__variant::_Variant_storage<false, T...>::_M_valid()):
217 Check __never_valueless<T...>().
218 (variant::emplace): Only perform non-throwing move assignments
219 for never-valueless alternatives if the variant has a move assignment
221 * testsuite/20_util/variant/compile.cc: Check that never-valueless
222 types can be emplaced into non-assignable variants.
223 * testsuite/20_util/variant/run.cc: Check that never-valueless types
224 don't get copied when emplaced into non-assignable variants.
226 * include/std/variant (__detail::__variant::__ref_cast): Remove
228 (__detail::__variant::_Uninitialized::_M_get)
229 (__detail::__variant::__get)
230 (__gen_vtable_impl::__element_by_index_or_cookie): Add noexcept.
232 2019-04-21 Iain Sandoe <iain@sandoe.co.uk>
234 * testsuite/17_intro/headers/c++1998/charset.cc: Skip for Darwin8
236 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
237 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
238 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
239 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
241 2019-04-20 Thomas Rodgers <trodgers@redhat.com>
243 Delegate PSTL configuration to pstl/pstl_config.h
245 * include/bits/c++config: Remove explicit PSTL configuration
246 macros and use definitions from <pstl/pstl_config.h>.
248 2019-04-20 Thomas Rodgers <trodgers@redhat.com>
250 Cleanup algorithm implementations
251 * include/pstl/glue_algorithm_impl.h (stable_sort): Forward
253 (mismatch): Forward execution policy.
254 (equal): Qualify call to std::equal().
255 (partial_sort): Forward execution policy.
256 (inplace_merge): Forward execution policy.
258 2019-04-19 Thomas Rodgers <trodgers@redhat.com>
260 Improve implementation of parallel equal()
261 * include/pstl/algorithm_impl.h
262 (__internal::__brick_equal): use "4 iterator" version of
264 (__internal::__brick_equal): use simd for random access
265 iterators on unsequenced execution policies.
266 (__internal::__pattern_equal): add "4 iterator" version
267 (__internal::__pattern_equal): dispatch to simd __brick_equal
268 for vector-only execution policies.
269 (__internal::__pattern_equal): dispatch to __parallel_or for
270 parallel execution policies.
271 * include/pstl/glue_algorithm_impl.h
272 (std::equal): dispatch to "4 iterator" version of
273 __internal::__pattern_equal().
275 2019-04-17 Jonathan Wakely <jwakely@redhat.com>
278 * include/bits/forward_list.h (operator==): Do not use operator!= to
280 (forward_list<T, A>::sort(Comp)): When elements are equal take the one
281 earlier in the list, so that sort is stable.
282 * testsuite/23_containers/forward_list/operations/90105.cc: New test.
283 * testsuite/23_containers/forward_list/comparable.cc: Test with
284 types that meet the minimum EqualityComparable and LessThanComparable
285 requirements. Remove irrelevant comment.
287 * include/std/variant (__detail::__variant::_Traits::_S_copy_assign):
288 Do not depend on whether all alternative types are move constructible.
289 (__detail::__variant::_Copy_assign_base::operator=): Remove cv-quals
290 from the operand when deciding whether to perform the assignment.
291 * testsuite/20_util/variant/compile.cc (DeletedMoves): Define type
292 with deleted move constructor and deleted move assignment operator.
293 (default_ctor, copy_ctor, move_ctor, copy_assign, move_assign): Check
294 behaviour of variants with DeletedMoves as an alternative.
295 * testsuite/20_util/variant/run.cc (DeletedMoves): Define same type.
296 (move_ctor, move_assign): Check that moving a variant with a
297 DeletedMoves alternative falls back to copying instead of moving.
299 * testsuite/20_util/variant/compile.cc: Remove empty string literals
300 from static_assert declarations.
302 * testsuite/20_util/variant/compile.cc (MoveCtorOnly): Fix type to
303 actually match its name.
304 (MoveCtorAndSwapOnly): Define new type that adds swap to MoveCtorOnly.
305 (test_swap()): Fix result for MoveCtorOnly and check
308 * include/std/optional (optional::value_or(U&&) &&): Add missing
310 * testsuite/20_util/optional/constexpr/observers/4.cc: Check value_or
311 for disengaged optionals and rvalue optionals.
312 * testsuite/20_util/optional/observers/4.cc: Likewise.
314 2019-04-12 Thomas Rodgers <trodgers@redhat.com>
316 * include/pstl/algorithm_impl.h: Uglify identfiers.
317 * include/pstl/numeric_impl.h: Uglify identfiers.
318 * include/pstl/parallel_backend_tbb.h: Uglify identfiers.
320 2019-04-11 Thomas Rodgers <trodgers@redhat.com>
322 * include/bits/c++config:
323 Add definition for __PSTL_ASSERT.
324 Add definition for __PSTL_ASSERT_MSG.
325 * include/pstl/algorithm_impl.h: Replace use of assert().
326 * include/pstl/numeric_impl.h: Replace use of assert().
327 * include/pstl/parallel_backend_tbb.h:
328 Replace use of assert().
329 Replace use of __TBB_ASSERT().
330 * include/pstl/parallel_backend_utils.h: Replace use of assert().
332 2019-04-11 Jonathan Wakely <jwakely@redhat.com>
335 * src/c++17/memory_resource.cc
336 (monotonic_buffer_resource::_Chunk::allocate): Increase alignment if
337 needed to allow placing a _Chunk at the end of the buffer.
338 (monotonic_buffer_resource::_M_new_buffer): Remove static_assert.
340 2019-04-10 Jonathan Wakely <jwakely@redhat.com>
342 * doc/xml/faq.xml: Add information about emergency EH pool.
343 * doc/xml/manual/debug.xml: Update list of memory debugging tools.
344 Move outdated information on mt_allocator to a separate section.
345 * doc/xml/manual/evolution.xml: Clarify that GLIBCXX_FORCE_NEW
346 doesn't affect the default allocator.
348 * testsuite/lib/libstdc++.exp (check_v3_target_parallel_mode): Fix
352 * testsuite/20_util/variant/89851.cc: New test.
354 2019-04-09 Jonathan Wakely <jwakely@redhat.com>
356 * include/std/variant: Adjust whitespace. Add comments.
357 (_Multi_array): Leave primary template undefined.
358 (_Multi_array<_Tp>): Define partial specialization for base case of
360 (__gen_vtable_impl, __gen_vtable): Remove redundant && from type
361 which is always a reference.
362 (__gen_vtable::_S_apply()): Remove function, inline body into
363 default member initializer.
364 * testsuite/20_util/variant/visit.cc: Test with noncopyable types.
366 * include/std/variant (__variant_idx_cookie): Add member type.
367 (__visitor_result_type): Remove.
368 (__do_visit): Use invoke_result instead of __visitor_result_type.
369 * testsuite/20_util/variant/visit.cc: New test.
372 * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Remove
374 * testsuite/20_util/variant/90008.cc: New test.
376 2019-04-09 Thomas Rodgers <trodgers@redhat.com>
378 * include/pstl/algorithm_impl.h: Add namespace qualification.
379 * include/pstl/execution_defs.h: Add namespace qualification.
380 * include/pstl/execution_impl.h: Add namespace qualification.
381 * include/pstl/numeric_impl.h: Add namespace qualification.
382 * include/pstl/parallel_backend_tbb.h: Add namespace qualification.
383 * include/pstl/unseq_backend_simd.h: Add namespace qualification.
384 * include/pstl/parallel_backend_utils.h: Include <cassert>.
386 2019-04-08 Ville Voutilainen <ville.voutilainen@gmail.com>
388 Fix visit<R> for variant.
389 * include/std/variant (__do_visit): Add a template parameter
390 for enforcing same return types for visit.
391 (__gen_vtable_impl): Likewise.
392 (_S_apply_single_alt): Adjust.
393 (__visit_invoke_impl): New. Handle casting to void.
394 (__do_visit_invoke): New. Enforces same return types.
395 (__do_visit_invoke_r): New. Converts return types.
396 (__visit_invoke): Adjust.
397 (__gen_vtable): Add a template parameter for enforcing
398 same return types for visit.
399 * testsuite/20_util/variant/visit_r.cc: Add a test for a visitor with
400 different return types.
401 * testsuite/20_util/variant/visit_neg.cc: New. Ensures that
402 visitors with different return types don't accidentally
403 compile with regular visitation.
405 2019-04-08 Christophe Lyon <christophe.lyon@linaro.org>
407 * testsuite/27_io/filesystem/iterators/caching.cc: Add
408 dg-require-filesystem-ts.
410 2019-04-05 Jonathan Wakely <jwakely@redhat.com>
412 * doc/xml/manual/status_cxx2020.xml: Update status.
413 * include/std/variant (visit<R>): Define for C++2a (P0655R1).
414 * testsuite/20_util/variant/visit_r.cc: New test.
416 * include/bits/fs_dir.h (directory_iterator::operator*)
417 (directory_iterator::operator->): Add noexcept.
418 (operator==, operator!=): Replace namespace-scope equality operators
419 for directory iterators with hidden friends.
422 * config/abi/pre/gnu.ver: Add missing exports.
423 * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Test
426 * config/abi/pre/gnu.ver: Export new symbols.
427 * include/bits/fs_dir.h (recursive_directory_iterator::options())
428 (recursive_directory_iterator::recursion_pending())
429 (recursive_directory_iterator::disable_recursion_pending()): Remove
430 inline definitions. Make noexcept.
431 (recursive_directory_iterator::depth())
432 (recursive_directory_iterator::operator*())
433 (recursive_directory_iterator::operator->()): Make noexcept.
434 (recursive_directory_iterator::_M_options)
435 (recursive_directory_iterator::_M_pending): Remove data members.
436 * src/c++17/fs_path.cc (_Dir_stack): Add constructor and data members.
437 (recursive_directory_iterator::recursive_directory_iterator): Remove
438 ctor-initializer. Use new constructor for _Dir_stack.
439 (recursive_directory_iterator::options())
440 (recursive_directory_iterator::recursion_pending())
441 (recursive_directory_iterator::disable_recursion_pending()): Add
442 non-inline definitions.
443 (recursive_directory_iterator::depth()): Make noexcept.
444 (recursive_directory_iterator::increment(error_code&))
445 (recursive_directory_iterator::pop(error_code&)): Adjust to new
446 location of options and recursion_pending members.
447 * testsuite/27_io/filesystem/iterators/recursion_pending.cc: New test.
448 * testsuite/util/testsuite_fs.h (__gnu_test::scoped_file): Add
449 user-declared move constructor and assignment operator, to make the
452 * src/c++17/fs_dir.cc (_Dir::advance(bool, error_code&)): Handle
453 d_type == DT_UNKNOWN immediately.
454 (_Dir::should_recurse(bool, error_code&)): Remove file_type::unknown
456 * testsuite/27_io/filesystem/iterators/caching.cc: New test.
458 * include/bits/fs_path.h (path::operator=(path&&)): Check for self
460 * src/c++17/fs_path.cc (path::operator=(const path&)): Likewise.
461 * testsuite/27_io/filesystem/path/assign/copy.cc: Test self
464 PR libstdc++/87431 (again)
465 * include/bits/basic_string.h (__variant::_Never_valueless_alt):
466 Define partial specialization for basic_string.
467 * include/bits/shared_ptr.h (_Never_valueless_alt): Likewise for
468 shared_ptr and weak_ptr.
469 * include/bits/std_function.h (_Never_valueless_alt): Likewise for
471 * include/bits/stl_vector.h (_Never_valueless_alt): Likewise for
473 * include/bits/unique_ptr.h (_Never_valueless_alt): Likewise for
475 * include/debug/vector (_Never_valueless_alt): Likewise for debug
477 * include/std/any (_Never_valueless_alt): Define explicit
478 specialization for any.
479 * include/std/variant (_Never_valueless_alt): Define primary template.
480 (__never_valueless): Use _Never_valueless_alt instead of
481 is_trivially_copyable.
482 (variant::emplace<N>(Args&&...)): Add special case for non-throwing
483 initializations to avoid try-catch overhead. Add special case for
484 scalars produced by potentially-throwing conversions. Use
485 _Never_valueless_alt instead of is_trivially_copyable for the
486 remaining strong exception-safety cases.
487 (variant::emplace<N>(initializer_list<U>, Args&&...)): Likewise.
488 * testsuite/20_util/variant/87431.cc: Run both test functions.
489 * testsuite/20_util/variant/exception_safety.cc: New test.
490 * testsuite/20_util/variant/run.cc: Use pmr::string instead of string,
491 so the variant becomes valueless.
493 2019-04-03 Jonathan Wakely <jwakely@redhat.com>
496 * include/std/variant (_Copy_assign_base, _Move_assign_base, variant):
498 (variant::emplace<_Tp>): Return result of emplace<N> directly.
500 * include/std/string (__hash_string_base): New class template defining
501 operator() for hashing strings.
502 (hash<pmr::string>, hash<pmr::u8string>, hash<pmr::u16string>)
503 (hash<pmr::u32string>, hash<pmr::wstring>): Define for C++17.
504 * testsuite/21_strings/basic_string/hash/hash.cc: New test.
505 * testsuite/21_strings/basic_string/hash/hash_char8_t.cc: New test.
507 2019-04-01 Ville Voutilainen <ville.voutilainen@gmail.com>
509 Use single-visitation in variant assignment and swap and relops.
510 Also use indices instead of types when checking whether
511 variants hold the same thing.
512 * include/std/variant (__do_visit): Add a template parameter
513 for index visitation, invoke with indices if index visitation
515 (__variant_idx_cookie): New.
516 (__visit_with_index): Likewise.
517 (_Copy_assign_base::operator=): Do single-visitation with
519 (_Move_assign_base::operator=): Likewise.
520 (_Extra_visit_slot_needed): Adjust.
521 (__visit_invoke): Call with indices if it's an index visitor.
522 (relops): Do single-visitation with an index visitor.
524 (__visitor_result_type): New.
526 2019-03-30 Eric Botcazou <ebotcazou@adacore.com>
528 * src/c++17/fs_ops.cc (fs::permissions): Use std::errc::not_supported.
530 2019-03-28 Ville Voutilainen <ville.voutilainen@gmail.com>
532 Don't revisit a variant we are already visiting.
533 * include/std/variant (__variant_construct_single): New.
534 (__variant_construct): Use it.
535 (_M_destructive_move): Likewise.
536 (_M_destructive_copy): Likewise.
537 (_Copy_assign_base::operator=): Adjust.
538 (_Move_assign_base::operator=): Likewise.
541 2019-03-26 Jonathan Wakely <jwakely@redhat.com>
544 * include/bits/hashtable.h (_Hashtable): Move static assertions to
545 destructor so they are not evaluated until the _Key type is complete.
546 * include/bits/stl_tree.h (_Rb_tree): Likewise.
547 * testsuite/23_containers/set/85965.cc: New test.
548 * testsuite/23_containers/unordered_set/85965.cc: New test.
549 * testsuite/23_containers/map/48101_neg.cc: Replace "here" errors
550 with regexp matching the corresponding _Rb_tree specialization.
551 * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
552 * testsuite/23_containers/multiset/48101_neg.cc: Remove "here" error.
553 * testsuite/23_containers/set/48101_neg.cc: Likewise.
554 * testsuite/23_containers/unordered_map/48101_neg.cc: Likewise.
555 * testsuite/23_containers/unordered_multimap/48101_neg.cc: Likewise.
556 * testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise.
557 * testsuite/23_containers/unordered_set/48101_neg.cc: Likewise.
559 2019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com>
562 Fix based on a suggestion by Antony Polukhin.
563 * include/std/variant (__never_valueless): New.
565 (_Extra_visit_slot_needed): New.
566 (_Multi_array): Use it.
567 (_S_apply_all_alts): Likewise.
569 2019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com>
572 Fix based on a suggestion by Antony Polukhin.
573 * include/std/variant (__gen_vtable): Don't reserve an
574 additional table slot, _Multi_array already does that.
576 2019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com>
579 Fix based on a suggestion by Antony Polukhin.
580 * include/std/variant (__variant_construct): Capture a pointer
581 to the storage and visit just one variant.
583 2019-03-22 Jonathan Wakely <jwakely@redhat.com>
585 * doc/xml/manual/backwards_compatibility.xml: Remove link to
586 Doxygen-generated pages with unstable URL.
587 * doc/xml/manual/concurrency_extensions.xml: Likewise.
588 * doc/xml/manual/extensions.xml: Likewise.
589 * doc/xml/manual/parallel_mode.xml: Likewise.
590 * doc/xml/manual/support.xml: Likewise.
592 * include/bits/stl_algobase.h (__lg): Do arithmetic on type int to
593 avoid -Wconversion warnings.
595 2019-03-21 Thomas Rodgers <trodgers@redhat.com>
597 * include/Makefile.am (std_header): Add ${std_srcdir}/execution.
598 (pstl_srcdir, pstl_builddir, pstl_headers): New variables.
599 (allstamped): Add stamp-pstl.
600 (install-headers): Add ptsl_builddir.
601 * include/Makefile.in: Regenerate.
602 * include/bits/c++config: Add pstl configuration.
603 * include/pstl/LICENSE.txt: New file.
604 * include/pstl/algorithm_fwd.h: New file.
605 * include/pstl/algorithm_impl.h: New file.
606 * include/pstl/execution_defs.h: New file.
607 * include/pstl/execution_impl.h: New file.
608 * include/pstl/glue_algorithm_defs.h: New file.
609 * include/pstl/glue_algorithm_impl.h: New file.
610 * include/pstl/glue_execution_defs.h: New file.
611 * include/pstl/glue_memory_defs.h: New file.
612 * include/pstl/glue_memory_impl.h: New file.
613 * include/pstl/glue_numeric_defs.h: New file.
614 * include/pstl/glue_numeric_impl.h: New file.
615 * include/pstl/memory_impl.h: New file.
616 * include/pstl/numeric_fwd.h: New file.
617 * include/pstl/numeric_impl.h: New file.
618 * include/pstl/parallel_backend.h: New file.
619 * include/pstl/parallel_backend_tbb.h: New file.
620 * include/pstl/parallel_backend_utils.h: New file.
621 * include/pstl/parallel_impl.h: New file.
622 * include/pstl/pstl_config.h: New file.
623 * include/pstl/unseq_backend_simd.h: New file.
624 * include/pstl/utils.h: New file.
625 * include/std/algorithm: Include parallel algorithm implementations.
626 * include/std/execution: New file.
627 * include/std/memory: Include parallel algorithm implementations.
628 * include/std/numeric: Include parallel algorithm implementations.
629 * include/std/version: Add parallel algorithms feature test macro.
630 * testsuite/util/pstl/pstl_test_config.h: New file.
631 * testsuite/util/pstl/test_utils.h: New file.
632 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file.
633 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file.
634 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file.
635 * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file.
636 * testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file.
637 * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file.
638 * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file.
639 * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file.
640 * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file.
641 * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file.
642 * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file.
643 * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file.
644 * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file.
645 * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file.
646 * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file.
647 * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file.
648 * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file.
649 * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file.
650 * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file.
651 * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file.
652 * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file.
653 * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file.
654 * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file.
655 * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file.
656 * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file.
657 * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file.
658 * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file.
659 * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file.
660 * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file.
661 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file.
662 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file.
663 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file.
664 * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file.
665 * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file.
666 * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file.
667 * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file.
668 * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file.
669 * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file.
670 * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file.
671 * testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file.
672 * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file.
673 * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file.
674 * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file.
675 * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file.
676 * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file.
677 * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file.
678 * testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file.
679 * testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file.
680 * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file.
681 * testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file.
682 * testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file.
683 * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file.
684 * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file.
685 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file.
686 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file.
687 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file.
688 * testsuite/testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file.
689 * testsuite/testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file.
690 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file.
691 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file.
692 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file.
693 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file.
694 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file.
695 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file.
696 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file.
697 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file.
698 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file.
699 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file.
700 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file.
701 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file.
702 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file.
703 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file.
704 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file.
705 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file.
706 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file.
707 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file.
708 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file.
709 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file.
710 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file.
711 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file.
712 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file.
713 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file.
714 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file.
715 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file.
716 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file.
717 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file.
718 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file.
719 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file.
720 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file.
721 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file.
722 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file.
723 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file.
724 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file.
725 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file.
726 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file.
727 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file.
728 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file.
729 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file.
730 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file.
731 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file.
732 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file.
733 * testsuite/testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file.
734 * testsuite/testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file.
735 * testsuite/testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file.
736 * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file.
737 * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file.
739 2019-03-21 Jonathan Wakely <jwakely@redhat.com>
741 * include/c_compatibility/math.h [!__STDCPP_WANT_MATH_SPEC_FUNCS__]
742 (assoc_laguerre, assoc_laguerref, assoc_laguerrel, assoc_legendre)
743 (assoc_legendref, assoc_legendrel, beta, betaf, betal, comp_ellint_1)
744 (comp_ellint_1f, comp_ellint_1l, comp_ellint_2, comp_ellint_2f)
745 (comp_ellint_2l, comp_ellint_3, comp_ellint_3f, comp_ellint_3l)
746 (cyl_bessel_i, cyl_bessel_if, cyl_bessel_il, cyl_bessel_j)
747 (cyl_bessel_jf, cyl_bessel_jl, cyl_bessel_k, cyl_bessel_kf)
748 (cyl_bessel_kl, cyl_neumann, cyl_neumannf, cyl_neumannl, ellint_1)
749 (ellint_1f, ellint_1l, ellint_2, ellint_2f, ellint_2l, ellint_3)
750 (ellint_3f, ellint_3l, expint, expintf, expintl, hermite, hermitef)
751 (hermitel, laguerre, laguerref, laguerrel, legendre, legendref)
752 (legendrel, riemann_zeta, riemann_zetaf, riemann_zetal, sph_bessel)
753 (sph_besself, sph_bessell, sph_legendre, sph_legendref, sph_legendrel)
754 (sph_neumann, sph_neumannf, sph_neumannl): Only add using-declarations
755 when the special functions IS is enabled, not for C++17.
756 * testsuite/26_numerics/headers/cmath/functions_global_c++17.cc:
758 * testsuite/26_numerics/headers/cmath/functions_global.cc: New test,
759 without checks for special functions in C++17.
760 * testsuite/26_numerics/headers/cmath/special_functions_global.cc:
764 * include/backward/hash_map: Use <> for includes not "".
765 * include/backward/hash_set: Likewise.
766 * include/backward/strstream: Likewise.
767 * include/tr1/bessel_function.tcc: Likewise.
768 * include/tr1/exp_integral.tcc: Likewise.
769 * include/tr1/legendre_function.tcc: Likewise.
770 * include/tr1/modified_bessel_func.tcc: Likewise.
771 * include/tr1/riemann_zeta.tcc: Likewise.
773 2019-03-19 Jonathan Wakely <jwakely@redhat.com>
775 * doc/xml/manual/allocator.xml: Link to table documenting evolution
776 of extension allocators.
777 * doc/xml/manual/evolution.xml: Use angle brackets for header names.
778 Document new headers in 7.2, 8.1 and 9.1 releases.
779 * doc/xml/manual/using.xml: Adjust link target for new_allocator.
780 * doc/html/*: Regenerate.
782 2019-03-12 John David Anglin <dave.anglin@bell.net>
785 * testsuite/lib/libstdc++.exp: Locate libatomic.
786 * testsuite/lib/dg-options.exp (add_options_for_libatomic): New.
787 * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc: Add
789 * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
790 * testsuite/experimental/net/timer/waitable/cons.cc: Likewise.
791 * testsuite/experimental/net/timer/waitable/dest.cc: Likewise.
792 * testsuite/experimental/net/timer/waitable/ops.cc: Likewise.
794 2019-03-11 Jonathan Wakely <jwakely@redhat.com>
797 * configure.ac: Check for sockatmark.
798 * crossconfig.m4: Check for sockatmark.
799 * config.h.in: Regenerate.
800 * configure: Regenerate.
801 * include/experimental/internet (address_v4::_S_hton): Rename
802 overloaded functions to _S_hton_16 and _S_ntoh_16.
803 (address_v4::_S_ntoh): Rename to _S_ntoh_16 and _S_ntoh_32.
804 (basic_endpoint): Adjust calls to _S_hton and _S_ntoh.
805 * include/experimental/socket (basic_socket::at_mark): Check
806 _GLIBCXX_HAVE_SOCKATMARK.
808 * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc: Use
809 const variables instead of macros.
812 * libsupc++/hash_bytes.cc [__SIZEOF_SIZE_T__ == 8] (_Hash_bytes):
813 Use correct type for len_aligned.
814 * testsuite/20_util/hash/89629.cc: New test.
816 2019-03-11 Jakub Jelinek <jakub@redhat.com>
819 * include/std/atomic (atomic<T>::store, atomic<T>::load,
820 atomic<T>::exchange, atomic<T>::compare_exchange_weak,
821 atomic<T>::compare_exchange_strong): Cast __m or __s and __f to int.
822 * include/bits/atomic_base.h (__atomic_base<T>::operator++,
823 __atomic_base<T>::operator--, __atomic_base<T>::operator+=,
824 __atomic_base<T>::operator-=, __atomic_base<T>::operator&=,
825 __atomic_base<T>::operator|=, __atomic_base<T>::operator^=,
826 __atomic_base<T*>::operator++, __atomic_base<T*>::operator--,
827 __atomic_base<T*>::operator+=, __atomic_base<T*>::operator-=): Cast
828 memory_order_seq_cst to int.
830 2019-03-08 Jonathan Wakely <jwakely@redhat.com>
832 * doc/xml/manual/using.xml: Use link element instead of xref.
833 * doc/html/*: Regenerate.
835 * include/bits/fs_path.h (path::format): Add fixed underlying type.
837 2019-03-08 François Dumont <fdumont@gcc.gnu.org>
840 * include/debug/map.h (map): Use _RequireNotAllocator to constrain
841 parameters in deduction guides.
842 * include/debug/multimap.h (multimap): Likewise.
843 * include/debug/set.h (multimap): Likewise.
844 * include/debug/multiset.h (multimap): Likewise.
845 * include/debug/unordered_map (unordered_map): Likewise.
846 (unordered_multimap): Likewise.
847 * include/debug/unordered_set (unordered_set): Likewise.
848 (unordered_multiset): Likewise.
851 * include/debug/unordered_map (unordered_map<>::_M_check_rehashed):
852 Invalidate all iterators in case of rehash.
853 (unordered_multimap<>::_M_check_rehashed): Likewise.
854 * include/debug/unordered_set
855 (unordered_set<>::_M_check_rehashed): Likewise.
856 (unordered_multiset<>::_M_check_rehashed): Likewise.
857 * testsuite/23_containers/unordered_set/debug/89608_neg.cc: New.
859 2019-03-07 Andreas Schwab <schwab@suse.de>
861 * config/abi/post/riscv64-linux-gnu: New directory.
862 * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: New file.
864 2019-03-07 Jonathan Wakely <jwakely@redhat.com>
866 * testsuite/20_util/function_objects/bind_front/1.cc: Change from
867 compile test to run. Fix typo.
869 * doc/xml/manual/status_cxx2020.xml: Update C++20 status.
870 * doc/html/*: Regenerate.
872 P0356R5 Simplified partial function application
873 * include/std/functional [C++20] (_Bind_front, _Bind_front_t): Define
874 helpers for bind_front.
875 (bind_front, __cpp_lib_bind_front): Define.
876 * testsuite/20_util/function_objects/bind_front/1.cc: New test.
878 2019-03-06 Jonathan Wakely <jwakely@redhat.com>
880 * include/std/type_traits (__cpp_lib_bounded_array_traits): Define.
881 * include/std/version (__cpp_lib_bounded_array_traits): Likewise.
882 * testsuite/20_util/is_bounded_array/value.cc: Check for macro.
883 * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
885 2019-03-06 Edward Smith-Rowland <3dw4rd@verizon.net>
887 PR libstdc++/86655 - std::assoc_legendre should not constrain
888 the value of m (or x).
889 * include/tr1/legendre_function.tcc (__assoc_legendre_p,
890 __sph_legendre): If degree > order Don't throw, return 0.
891 (__legendre_p, __assoc_legendre_p): Don't constrain x either.
892 * testsuite/special_functions/02_assoc_legendre/pr86655.cc: New test.
893 * testsuite/special_functions/20_sph_legendre/pr86655.cc: New test.
894 * testsuite/tr1/5_numerical_facilities/special_functions/
895 02_assoc_legendre/pr86655.cc: New test.
896 * testsuite/tr1/5_numerical_facilities/special_functions/
897 22_sph_legendre/pr86655.cc: New test.
899 2019-03-06 Ville Voutilainen <ville.voutilainen@gmail.com>
902 Also PR libstdc++/85517
903 * include/std/variant (__do_visit): New.
904 (__variant_cast): Likewise.
905 (__variant_cookie): Likewise.
906 (__erased_*): Remove.
907 (_Variant_storage::_S_vtable): Likewise.
908 (_Variant_storage::__M_reset_impl): Adjust to use __do_visit.
909 (_Variant_storage::__M_reset): Adjust.
910 (__variant_construct): New.
911 (_Copy_ctor_base(const _Copy_ctor_base&)): Adjust to use
913 (_Move_ctor_base(_Move_ctor_base&&)): Likewise.
914 (_Move_ctor_base::__M_destructive_copy): New.
915 (_Move_ctor_base::__M_destructive_move): Adjust to use
917 (_Copy_assign_base::operator=): Adjust to use __do_visit.
918 (_Copy_assign_alias): Adjust to check both copy assignment
919 and copy construction for triviality.
920 (_Move_assign_base::operator=): Adjust to use __do_visit.
921 (_Multi_array): Add support for visitors that accept and return
923 (__gen_vtable_impl::_S_apply_all_alts): Likewise.
924 (__gen_vtable_impl::_S_apply_single_alt): Likewise.
925 (__gen_vtable_impl::__element_by_index_or_cookie): New. Generate
926 a __variant_cookie temporary for a variant that is valueless and..
927 (__gen_vtable_impl::__visit_invoke): ..adjust here.
928 (__gen_vtable::_Array_type): Conditionally make space for
929 the __variant_cookie visitor case.
930 (__variant_construct_by_index): New.
931 (get_if): Adjust to use std::addressof.
932 (relops): Adjust to use __do_visit.
933 (variant): Add __variant_cast and __variant_construct_by_index
935 (variant::emplace): Use _M_reset() and __variant_construct_by_index
936 instead of self-destruction.
937 (variant::swap): Adjust to use __do_visit.
938 (visit): Reimplement in terms of __do_visit.
939 (__variant_hash_call_base_impl::operator()): Adjust to use __do_visit.
940 * testsuite/20_util/variant/compile.cc: Adjust.
941 * testsuite/20_util/variant/run.cc: Likewise.
943 2019-03-06 Jonathan Wakely <jwakely@redhat.com>
945 * include/bits/c++config.h (_cpp_lib_char8_t): Add L suffix to
947 * testsuite/experimental/feat-char8_t.cc: Likewise.
949 * include/std/type_traits [C++20] (is_bounded_array)
950 (is_unbounded_array, is_bounded_array_v, is_unbounded_array_v):
952 * testsuite/20_util/is_bounded_array/requirements/
953 explicit_instantiation.cc: New test.
954 * testsuite/20_util/is_bounded_array/requirements/typedefs.cc: New
956 * testsuite/20_util/is_bounded_array/value.cc: New test.
957 * testsuite/20_util/is_unbounded_array/requirements/
958 explicit_instantiation.cc: New test.
959 * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc: New
961 * testsuite/20_util/is_unbounded_array/value.cc: New test.
963 * include/bits/ptr_traits.h [C++20] (pointer_traits<T*>::pointer_to):
965 * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc: New test.
967 2019-03-05 Jonathan Wakely <jwakely@redhat.com>
969 * include/c_compatibility/math.h [C++20] (lerp): Add using
971 * include/c_global/cmath [C++20] (__cpp_lib_interpolate): Define.
972 (__lerp): Define function template to implement lerp.
973 (lerp(float, float, float), lerp(double, double, double))
974 (lerp(long double, long double, long double)): Define for C++20.
975 * include/std/numeric [C++20] (__cpp_lib_interpolate): Define.
976 (midpoint(T, T), midpoint(T*, T*)): Define.
977 * include/std::version [C++20] (__cpp_lib_interpolate): Define.
978 * testsuite/26_numerics/lerp.cc: New test.
979 * testsuite/26_numerics/midpoint/floating.cc: New test.
980 * testsuite/26_numerics/midpoint/integral.cc: New test.
981 * testsuite/26_numerics/midpoint/pointer.cc: New test.
983 2019-03-04 Edward Smith-Rowland <3dw4rd@verizon.net>
985 PR libstdc++/88996 Implement P0439R0
986 Make std::memory_order a scoped enumeration.
987 * include/bits/atomic_base.h: For C++20 make memory_order a scoped enum,
988 add variables for the old enumerators. Adjust calls.
989 * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc: New test.
990 * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc: New test.
992 2019-03-04 Jonathan Wakely <jwakely@redhat.com>
994 * testsuite/26_numerics/bit/bitops.rot/rotl.cc: Remove bogus dg-do
997 * include/std/memory_resource (polymorphic_allocator): Add default
998 template argument for C++20.
999 (polymorphic_allocator::allocate_bytes)
1000 (polymorphic_allocator::deallocate_bytes)
1001 (polymorphic_allocator::allocate_object)
1002 (polymorphic_allocator::deallocate_object)
1003 (polymorphic_allocator::new_object)
1004 (polymorphic_allocator::delete_object): New member functions for
1006 * testsuite/20_util/polymorphic_allocator/allocate_object.cc: New
1009 2019-03-03 Jonathan Wakely <jwakely@redhat.com>
1012 * src/filesystem/ops-common.h (do_copy_file): Open files in binary
1015 2019-03-01 Jonathan Wakely <jwakely@redhat.com>
1017 * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource)
1018 [!__cpp_sized_deallocation]: Do not pass size to operator delete.
1020 * include/std/memory (uses_allocator_construction_args): New set of
1021 overloaded functions.
1022 (make_obj_using_allocator, uninitialized_construct_using_allocator):
1024 * include/std/memory_resource (polymorphic_allocator::construct)
1025 [__cplusplus > 201703l]: Replace all overloads with a single function
1026 using uses_allocator_construction_args.
1027 * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc: New
1029 * testsuite/20_util/uses_allocator/make_obj.cc: New test.
1031 2019-02-27 Jonathan Wakely <jwakely@redhat.com>
1034 * acinclude.m4 (GLIBCXX_CONFIGURE_DOCBOOK): Reorder check for local
1035 stylesheet directories before check for xsltproc. Try to use
1036 xmlcatalog to find local stylesheet directory before trying hardcoded
1037 paths. Add path used by suse to hardcoded paths. Adjust xsltproc
1038 check to look for the same stylesheet as doc/Makefile.am uses. Don't
1039 use xsltproc if xmlcatalog fails to find a local stylesheet.
1040 * configure.ac: Check for xmlcatalog.
1041 * Makefile.in: Regenerate.
1042 * configure: Likewise.
1043 * doc/Makefile.in: Likewise.
1044 * include/Makefile.in: Likewise.
1045 * libsupc++/Makefile.in: Likewise.
1046 * po/Makefile.in: Likewise.
1047 * python/Makefile.in: Likewise.
1048 * src/Makefile.in: Likewise.
1049 * src/c++11/Makefile.in: Likewise.
1050 * src/c++17/Makefile.in: Likewise.
1051 * src/c++98/Makefile.in: Likewise.
1052 * src/filesystem/Makefile.in: Likewise.
1053 * testsuite/Makefile.in: Likewise.
1055 2019-02-26 Jonathan Wakely <jwakely@redhat.com>
1058 * include/bits/alloc_traits.h (_RequireNotAllocator): New helper for
1059 container deduction guides.
1060 * include/bits/hashtable.h (_RequireNotAllocatorOrIntegral): Likewise.
1061 * include/bits/stl_map.h (map): Use _RequireNotAllocator to constrain
1062 parameters in deduction guides.
1063 * include/bits/stl_multimap.h (multimap): Likewise.
1064 * include/bits/stl_multiset.h (multiset): Likewise.
1065 * include/bits/stl_queue.h (queue, priority_queue): Likewise.
1066 * include/bits/stl_set.h (set): Likewise.
1067 * include/bits/stl_stack.h (stack): Likewise.
1068 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
1069 use _RequireNotAllocator and _RequireNotAllocatorOrIntegral to
1070 constrain parameters in deduction guides.
1071 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
1073 * testsuite/23_containers/map/cons/deduction.cc: Test additional
1075 * testsuite/23_containers/multiset/cons/deduction.cc: Likewise.
1076 * testsuite/23_containers/set/cons/deduction.cc: Likewise.
1077 * testsuite/23_containers/unordered_map/cons/deduction.cc: Likewise.
1078 * testsuite/23_containers/unordered_multimap/cons/deduction.cc:
1080 * testsuite/23_containers/unordered_multiset/cons/deduction.cc:
1082 * testsuite/23_containers/unordered_set/cons/deduction.cc: Likewise.
1085 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Change
1086 to class template and partial specialization using void_t.
1087 (__is_copy_insertable, __is_move_insertable): Adjust base class.
1089 2019-02-24 Jonathan Wakely <jwakely@redhat.com>
1092 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Make
1093 copy and move members public.
1095 2019-02-23 Jonathan Wakely <jwakely@redhat.com>
1097 * include/std/type_traits (__underlying_type_impl): New helper to
1098 make underlying_type SFINAE-friendly.
1099 (underlying_type): Derive from __underlying_type_impl.
1100 * testsuite/20_util/underlying_type/requirements/typedefs-3.cc: New
1104 * include/bits/char_traits.h (__constant_char_array): Check index is
1105 in range before dereferencing.
1106 (char_traits<char>::compare, char_traits<char>::find)
1107 (char_traits<char8_t>::compare, char_traits<char8_t>::find): Return
1108 immediately if n is zero.
1109 (char_traits<wchar_t>::compare, char_traits<wchar_t>::find): Likewise.
1110 Remove workarounds for PR 67026.
1111 * testsuite/21_strings/basic_string_view/operators/char/89446.cc:
1113 * testsuite/21_strings/basic_string_view/operators/wchar_t/89446.cc:
1116 2019-02-22 Eric Botcazou <ebotcazou@adacore.com>
1118 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Adjust.
1119 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
1121 2019-02-22 Jakub Jelinek <jakub@redhat.com>
1124 * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Change return
1125 type to std::size_t and argument to type to long double.
1127 2019-02-22 Eric Botcazou <ebotcazou@adacore.com>
1129 * configure.host (abi_baseline_pair): Adjust for SPARC64/Linux.
1130 * config/abi/post/sparc64-linux-gnu: New directory.
1131 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: New file.
1132 * config/abi/post/sparc64-linux-gnu/32: New directory.
1133 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: New file.
1135 2019-02-21 Jonathan Wakely <jwakely@redhat.com>
1137 * testsuite/29_atomics/headers/atomic/types_std_c++20.cc: New test.
1138 * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc: New
1141 2019-02-22 Tom Honermann <tom@honermann.net>
1143 * python/libstdcxx/v6/printers.py (register_type_printers): Add type
1144 printers for u8string and u8string_view.
1146 2019-02-22 Tom Honermann <tom@honermann.net>
1148 * testsuite/18_support/byte/ops.cc: Validate
1149 std::to_integer<char8_t>, std::to_integer<char16_t>, and
1150 std::to_integer<char32_t>.
1151 * testsuite/18_support/numeric_limits/dr559.cc: Validate
1152 std::numeric_limits<char8_t>.
1153 * testsuite/18_support/numeric_limits/lowest.cc: Validate
1154 std::numeric_limits<char8_t>::lowest().
1155 * testsuite/18_support/numeric_limits/max_digits10.cc: Validate
1156 std::numeric_limits<char8_t>::max_digits10.
1157 * testsuite/18_support/type_info/fundamental.cc: Validate
1158 typeinfo for char8_t.
1159 * testsuite/20_util/from_chars/1_c++20_neg.cc: New test, validating
1160 std::from_chars with char8_t.
1161 * testsuite/20_util/hash/requirements/explicit_instantiation.cc:
1162 Validate explicit instantiation of std::hash<char8_t>.
1163 * testsuite/20_util/is_integral/value.cc: Validate
1164 std::is_integral<char8_t>.
1165 * testsuite/20_util/make_signed/requirements/typedefs-4.cc:
1166 Validate std::make_signed<char8_t>.
1167 * testsuite/21_strings/basic_string/cons/char/deduction.cc:
1168 Validate u8string construction from char8_t sources.
1169 * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Validate
1171 * testsuite/21_strings/basic_string_view/operations/compare/
1172 char/70483.cc: Validate substr operations on u8string_view.
1173 * testsuite/21_strings/basic_string_view/typedefs.cc: Validate that
1174 the u8string_view typedef is defined.
1175 * testsuite/21_strings/char_traits/requirements/
1176 constexpr_functions.cc: Validate char_traits<char8_t> constexpr
1178 * testsuite/21_strings/char_traits/requirements/
1179 constexpr_functions_c++17.cc: Validate char_traits<char8_t> C++17
1180 constexpr member functions.
1181 * testsuite/21_strings/headers/string/types_std_c++0x.cc: Validate
1182 that the u8string typedef is defined.
1183 * testsuite/22_locale/locale/cons/unicode.cc: Validate the presence
1184 of the std::codecvt<char16_t, char8_t, std::mbstate_t> and
1185 std::codecvt<char32_t, char8_t, std::mbstate_t> facets.
1186 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Update line
1188 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
1189 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc:
1191 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
1192 * testsuite/29_atomics/atomic_integral/is_always_lock_free.cc:
1193 Validate std::atomic<char8_t>::is_always_lock_free
1194 * testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc:
1195 Update line numbers.
1196 * testsuite/29_atomics/atomic_integral/operators/decrement_neg.cc:
1198 * testsuite/29_atomics/atomic_integral/operators/increment_neg.cc:
1200 * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
1201 Validate std::experimental::pmr::u8string.
1202 * testsuite/experimental/string_view/typedefs.cc: Validate that the
1203 u8string_view typedef is defined.
1204 * testsuite/util/testsuite_common_types.h: Add char8_t, char16_t and
1205 char32_t to the typelists.
1207 2019-02-22 Tom Honermann <tom@honermann.net>
1209 * include/ext/typelist.h: Constrain a partial specialization of
1210 typelist::detail::append_ to only match chain<T1,T2>.
1212 2019-02-21 Jonathan Wakely <jwakely@redhat.com>
1215 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Replace
1216 class template with class. Replace move and copy member types with
1217 member alias templates, so they are only instantiated when needed.
1218 (__is_copy_insertable, __is_move_insertable): Adjust base class.
1219 * testsuite/23_containers/vector/modifiers/push_back/89130.cc: Enable
1220 test for C++11/14/17 as well.
1221 * testsuite/23_containers/vector/modifiers/push_back/89416.cc: New
1224 2019-02-20 Jakub Jelinek <jakub@redhat.com>
1227 * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Add
1228 _GLIBCXX_PURE to the alias declaration.
1230 2019-02-19 Jonathan Wakely <jwakely@redhat.com>
1232 * testsuite/21_strings/basic_string/literals/types.cc
1233 [_GLIBCXX_USE_CHAR8_T]: Adjust expected string type for u8 literal.
1234 * testsuite/21_strings/basic_string/literals/values.cc
1235 [_GLIBCXX_USE_CHAR8_T]: Likewise.
1236 * testsuite/22_locale/codecvt/char16_t.cc: Adjust for u8 literals
1237 potentially having different type.
1238 * testsuite/22_locale/codecvt/char32_t.cc: Likewise.
1239 * testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: Cast u8 literal
1241 * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: Likewise.
1242 * testsuite/22_locale/codecvt/utf8.cc: Likewise.
1243 * testsuite/22_locale/conversions/string/2.cc: Remove u8 prefix from
1244 string literals only using basic character set.
1245 * testsuite/22_locale/conversions/string/3.cc: Likewise. Cast other
1246 u8 literals to char.
1247 * testsuite/29_atomics/headers/atomic/macros.cc [_GLIBCXX_USE_CHAR8_T]:
1248 Test ATOMIC_CHAR8_T_LOCK_FREE.
1249 Add missing #error to ATOMIC_CHAR16_T_LOCK_FREE test.
1250 * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc
1251 [_GLIBCXX_USE_CHAR8_T]: Check for std::atomic_char8_t.
1252 * testsuite/experimental/string_view/literals/types.cc
1253 [_GLIBCXX_USE_CHAR8_T]: Adjust expected string_view type for u8
1255 * testsuite/experimental/string_view/literals/values.cc
1256 [_GLIBCXX_USE_CHAR8_T]: Likewise.
1258 2019-02-19 Tom Honermann <tom@honermann.net>
1260 * testsuite/18_support/numeric_limits/char8_t.cc: New test cloned
1261 from char16_32_t.cc; validates numeric_limits<char8_t>.
1262 * testsuite/21_strings/basic_string/literals/types-char8_t.cc: New
1263 test cloned from types.cc; validates operator""s for char8_t
1265 * testsuite/21_strings/basic_string/literals/values-char8_t.cc: New
1266 test cloned from values.cc; validates construction and comparison
1268 * testsuite/21_strings/basic_string/requirements/
1269 /explicit_instantiation/char8_t/1.cc: New test cloned from
1270 char16_t/1.cc; validates explicit instantiation of
1271 basic_string<char8_t>.
1272 * testsuite/21_strings/basic_string_view/literals/types-char8_t.cc:
1273 New test cloned from types.cc; validates operator""sv for char8_t
1274 returns u8string_view.
1275 * testsuite/21_strings/basic_string_view/literals/
1276 values-char8_t.cc: New test cloned from values.cc; validates
1277 construction and comparison of u8string_view values.
1278 * testsuite/21_strings/basic_string_view/requirements/
1279 explicit_instantiation/char8_t/1.cc: New test cloned from
1280 char16_t/1.cc; validates explicit instantiation of
1281 basic_string_view<char8_t>.
1282 * testsuite/21_strings/char_traits/requirements/char8_t/65049.cc:
1283 New test cloned from char16_t/65049.cc; validates that
1284 char_traits<char8_t> is not vulnerable to the concerns in PR65049.
1285 * testsuite/21_strings/char_traits/requirements/char8_t/
1286 typedefs.cc: New test cloned from char16_t/typedefs.cc; validates
1287 that char_traits<char8_t> member typedefs are present and correct.
1288 * testsuite/21_strings/char_traits/requirements/
1289 explicit_instantiation/char8_t/1.cc: New test cloned from
1290 char16_t/1.cc; validates explicit instantiation of
1291 char_traits<char8_t>.
1292 * testsuite/22_locale/codecvt/char16_t-char8_t.cc: New test cloned
1293 from char16_t.cc: validates
1294 codecvt<char16_t, char8_t, mbstate_t>.
1295 * testsuite/22_locale/codecvt/char32_t-char8_t.cc: New test cloned
1296 from char32_t.cc: validates
1297 codecvt<char32_t, char8_t, mbstate_t>.
1298 * testsuite/22_locale/codecvt/utf8-char8_t.cc: New test cloned from
1299 utf8.cc; validates codecvt<char16_t, char8_t, std::mbstate_t> and
1300 codecvt<char32_t, char8_t, std::mbstate_t>.
1301 * testsuite/27_io/filesystem/path/native/string-char8_t.cc: New
1302 test cloned from string.cc; validates filesystem::path construction
1304 * testsuite/experimental/feat-char8_t.cc: New test; validates that
1305 the __cpp_lib_char8_t feature test macro is defined with the
1307 * testsuite/experimental/filesystem/path/native/string-char8_t.cc:
1308 New test cloned from string.cc; validates filesystem::path
1309 construction from char8_t input.
1310 * testsuite/experimental/string_view/literals/types-char8_t.cc: New
1311 test cloned from types.cc; validates operator""sv for char8_t
1312 returns u8string_view.
1313 * testsuite/experimental/string_view/literals/values-char8_t.cc:
1314 New test cloned from values.cc; validates construction and
1315 comparison of u8string_view values.
1316 * testsuite/experimental/string_view/requirements/
1317 explicit_instantiation/char8_t/1.cc: New test cloned from
1318 char16_t/1.cc; validates explicit instantiation of
1319 basic_string_view<char8_t>.
1320 * testsuite/ext/char8_t/atomic-1.cc: New test; validates that
1321 ATOMIC_CHAR8_T_LOCK_FREE is not defined if char8_t support is not
1324 2019-02-19 Tom Honermann <tom@honermann.net>
1326 P0482R5 char8_t: Standard library support
1327 * config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
1328 typeinfo symbols for char8_t.
1329 * config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
1330 (GLIBCXX_3.4.26): Add symbols for specializations of
1331 numeric_limits and codecvt that involve char8_t.
1332 (CXXABI_1.3.12): Add typeinfo symbols for char8_t.
1333 * include/bits/atomic_base.h: Add atomic_char8_t.
1334 * include/bits/basic_string.h: Add std::hash<u8string> and
1335 operator""s(const char8_t*, size_t).
1336 * include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
1338 * include/bits/char_traits.h: Add char_traits<char8_t>.
1339 * include/bits/codecvt.h: Add
1340 codecvt<char16_t, char8_t, mbstate_t>,
1341 codecvt<char32_t, char8_t, mbstate_t>,
1342 codecvt_byname<char16_t, char8_t, mbstate_t>, and
1343 codecvt_byname<char32_t, char8_t, mbstate_t>.
1344 * include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
1345 recognize char8_t as an integral type.
1346 * include/bits/fs_path.h: (path::__is_encoded_char): Recognize
1348 (path::u8string): Return std::u8string when char8_t support is
1350 (path::generic_u8string): Likewise.
1351 (path::_S_convert): Handle conversion from char8_t input.
1352 (path::_S_str_convert): Likewise.
1353 * include/bits/functional_hash.h: Add hash<char8_t>.
1354 * include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
1356 * include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
1357 for new char8_t specializations.
1358 * include/bits/localefwd.h: Add missing declarations of
1359 codecvt<char16_t, char, mbstate_t> and
1360 codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
1361 codecvt<char16_t, char8_t, mbstate_t> and
1362 codecvt<char32_t, char8_t, mbstate_t>.
1363 * include/bits/postypes.h: Add u8streampos
1364 * include/bits/stringfwd.h: Add declarations of
1365 char_traits<char8_t> and u8string.
1366 * include/c_global/cstddef: Add __byte_operand<char8_t>.
1367 * include/experimental/bits/fs_path.h (path::__is_encoded_char):
1369 (path::u8string): Return std::u8string when char8_t support is
1371 (path::generic_u8string): Likewise.
1372 (path::_S_convert): Handle conversion from char8_t input.
1373 (path::_S_str_convert): Likewise.
1374 * include/experimental/string: Add u8string.
1375 * include/experimental/string_view: Add u8string_view,
1376 hash<experimental::u8string_view>, and
1377 operator""sv(const char8_t*, size_t).
1378 * include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
1379 * include/std/charconv (__is_int_to_chars_type): Recognize char8_t
1380 as a character type.
1381 * include/std/limits: Add numeric_limits<char8_t>.
1382 * include/std/string_view: Add u8string_view,
1383 hash<experimental::u8string_view>, and
1384 operator""sv(const char8_t*, size_t).
1385 * include/std/type_traits: Add __is_integral_helper<char8_t>,
1386 __make_unsigned<char8_t>, and __make_signed<char8_t>.
1387 * libsupc++/atomic_lockfree_defines.h: Define
1388 ATOMIC_CHAR8_T_LOCK_FREE.
1389 * src/c++11/Makefile.am: Compile with -fchar8_t when compiling
1390 codecvt.cc and limits.cc so that char8_t specializations of
1391 numeric_limits and codecvt and emitted.
1392 * src/c++11/Makefile.in: Likewise.
1393 * src/c++11/codecvt.cc: Define members of
1394 codecvt<char16_t, char8_t, mbstate_t>,
1395 codecvt<char32_t, char8_t, mbstate_t>,
1396 codecvt_byname<char16_t, char8_t, mbstate_t>, and
1397 codecvt_byname<char32_t, char8_t, mbstate_t>.
1398 * src/c++11/limits.cc: Define members of
1399 numeric_limits<char8_t>.
1400 * src/c++98/Makefile.am: Compile with -fchar8_t when compiling
1401 locale_init.cc and localename.cc.
1402 * src/c++98/Makefile.in: Likewise.
1403 * src/c++98/locale_init.cc: Add initialization for the
1404 codecvt<char16_t, char8_t, mbstate_t> and
1405 codecvt<char32_t, char8_t, mbstate_t> facets.
1406 * src/c++98/localename.cc: Likewise.
1407 * testsuite/util/testsuite_abi.cc: Validate ABI bump.
1409 2019-02-18 Wilco Dijkstra <wdijkstr@arm.com>
1411 * 27_io/filesystem/operations/all.cc: Add dg-require-filesystem-ts.
1412 * 27_io/filesystem/operations/resize_file.cc: Likewise.
1413 * 27_io/filesystem/path/generation/normal2.cc: Likewise.
1415 2019-02-14 Jonathan Wakely <jwakely@redhat.com>
1417 * doc/xml/manual/status_cxx2020.xml: Update P0887R1 status.
1418 * doc/html/*: Regenerate.
1420 * doc/xml/manual/status_cxx2017.xml: Add P0063R3 to status table.
1421 * doc/html/*: Regenerate.
1423 * doc/xml/manual/intro.xml: Document LWG 2586 status.
1424 * include/bits/uses_allocator.h (__uses_alloc): Use const lvalue
1425 allocator type in is_constructible checks.
1426 * testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust dg-error.
1427 * testsuite/20_util/scoped_allocator/dr2586.cc: New test.
1428 * testsuite/20_util/tuple/cons/allocators.cc: Add test using
1429 problematic type from LWG 2586 discussion.
1430 * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error.
1431 * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
1433 * configure.ac: Check for C11 timespec_get function.
1434 * crossconfig.m4 (freebsd, linux, gnu, cygwin, solaris, netbsd)
1436 * config.h.in: Regenerate.
1437 * configure: Regenerate.
1438 * include/c_global/ctime (timespec, timespec_get): Add to namespace
1439 std for C++17 and up.
1441 * doc/xml/manual/intro.xml: Document LWG 2537 status.
1442 * include/bits/stl_queue.h
1443 (priority_queue(const Compare&, const Container&, const Alloc&))
1444 (priority_queue(const Compare&, Container&&, const Alloc&)): Call
1446 * testsuite/23_containers/priority_queue/dr2537.cc: New test.
1448 * doc/xml/manual/intro.xml: Document LWG 2566 status.
1449 * include/bits/stl_queue.h (queue, priority_queue): Add static
1450 assertions to enforce LWG 2566 requirement on value_type.
1451 * include/bits/stl_stack.h (stack): Likewise.
1454 * testsuite/20_util/enable_shared_from_this/89303.cc: New test.
1456 * doc/xml/manual/intro.xml: Document LWG 2735 status.
1457 * include/bits/std_abs.h: Add comment about LWG 2735.
1458 * testsuite/26_numerics/headers/cstdlib/dr2735.cc: New test.
1460 2019-02-13 Jonathan Wakely <jwakely@redhat.com>
1463 * include/std/version [__cpp_impl_destroying_delete]
1464 (__cpp_lib_destroying_delete): Only define for C++2a and later.
1465 * libsupc++/new [__cpp_impl_destroying_delete]
1466 (__cpp_lib_destroying_delete): Likewise.
1467 (destroying_delete_t, destroying_delete): Likewise, but define even
1468 when __cpp_impl_destroying_delete is not defined.
1469 * testsuite/18_support/destroying_delete.cc: New test.
1471 2019-02-11 Jonathan Wakely <jwakely@redhat.com>
1474 * testsuite/17_intro/headers/c++2011/parallel_mode.cc: New test.
1475 * testsuite/17_intro/headers/c++2014/parallel_mode.cc: New test.
1476 * testsuite/17_intro/headers/c++2017/parallel_mode.cc: New test.
1477 * testsuite/28_regex/headers/regex/parallel_mode.cc: Remove.
1479 2019-02-09 Jonathan Wakely <jwakely@redhat.com>
1482 * include/bits/fs_path.h (path::has_root_name)
1483 (path::has_root_directory, path::has_root_path)
1484 (path::has_relative_path, path::has_parent_path)
1485 (path::has_filename, path::has_stem, path::has_extension)
1486 (path::is_absolute, path::is_relative, path::_M_find_extension): Add
1488 * src/c++17/fs_path.cc (path::has_root_name)
1489 (path::has_root_directory, path::has_root_path)
1490 (path::has_relative_path, path::has_parent_path)
1491 (path::has_filename, path::_M_find_extension): Add noexcept.
1493 2019-02-06 Jonathan Wakely <jwakely@redhat.com>
1495 PR libstdc++/89102 (partial)
1496 * include/std/type_traits (common_type<>): Define.
1497 (common_type<T>): Derive from common_type<T, T>.
1498 * testsuite/20_util/common_type/requirements/explicit_instantiation.cc:
1499 Test zero-length template argument list.
1500 * testsuite/20_util/common_type/requirements/sfinae_friendly_1.cc:
1501 Test additional single argument cases.
1502 * testsuite/20_util/common_type/requirements/sfinae_friendly_2.cc:
1503 Adjust expected error.
1505 2019-02-05 Jonathan Wakely <jwakely@redhat.com>
1508 * include/bits/stl_queue.h (queue, priority_queue): Add deduction
1510 * include/bits/stl_stack.h (stack): Likewise.
1511 * testsuite/23_containers/priority_queue/deduction.cc: New test.
1512 * testsuite/23_containers/queue/deduction.cc: New test.
1513 * testsuite/23_containers/stack/deduction.cc: New test.
1516 * include/std/type_traits (__is_convertible_helper)
1517 (__is_convertible_helper<_From, _To, false>): Revert changes to
1518 support is_nothrow_convertible.
1519 (__is_nt_convertible_helper): New helper.
1520 (is_nothrow_convertible): Use __is_nt_convertible_helper.
1522 * testsuite/23_containers/vector/modifiers/push_back/49836.cc: Restore
1523 use of CopyConsOnlyType, but also test DelAnyAssign for completeness.
1526 * include/bits/alloc_traits.h (__is_copy_insertable_impl): Rename to
1527 __is_alloc_insertable_impl. Replace single type member with two
1528 members, one for each of copy and move insertable.
1529 (__is_move_insertable): New trait for internal use.
1530 * include/bits/stl_vector.h (vector::_S_nothrow_relocate(true_type))
1531 (vector::_S_nothrow_relocate(true_type)): New functions to
1532 conditionally check if __relocate_a can throw.
1533 (vector::_S_use_relocate()): Dispatch to _S_nothrow_relocate based
1534 on __is_move_insertable.
1535 (vector::_S_do_relocate): New overloaded functions to conditionally
1537 (vector::_S_relocate): New function that dispatches to _S_do_relocate
1538 based on _S_use_relocate.
1539 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
1540 (vector::_M_default_append): Call _S_relocate instead of __relocate_a.
1541 * testsuite/23_containers/vector/modifiers/push_back/89130.cc: New.
1544 * include/bits/stl_uninitialized.h (__relocate_a_1): Make unused
1545 parameter unnamed. Add message to static assertion.
1546 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
1547 (vector::_M_default_append): Use _GLIBCXX17_CONSTEXPR for if constexpr
1550 2019-02-05 Marc Glisse <marc.glisse@inria.fr>
1553 * include/bits/stl_uninitialized.h (__is_trivially_relocatable):
1555 (__is_bitwise_relocatable): ... to this.
1556 (__relocate_a_1): Adapt.
1557 * include/bits/stl_deque.h (__is_trivially_relocatable): Rename...
1558 (__is_bitwise_relocatable): ... to this.
1560 2019-01-30 Jonathan Wakely <jwakely@redhat.com>
1563 * src/c++17/fs_path.cc (path::replace_extension): Erase extension from
1564 final component as well as from _M_pathname. Append the dot using
1565 operator+= instead of only to _M_pathname.
1566 (path::_M_find_extension): Reformat slightly.
1567 * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
1568 Add more test cases.
1570 2019-01-30 Ulrich Drepper <drepper@redhat.com>
1572 * doc/xml/manual/status_cxx2020.xml: Update P0600 entry.
1574 2019-01-29 Jonathan Wakely <jwakely@redhat.com>
1576 * testsuite/26_numerics/headers/complex/synopsis.cc: Remove incorrect
1577 constexpr specifiers from arg and proj.
1579 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add missing exports for
1580 __shared_ptr instantiations used by gcc4-compatible ABI.
1582 * include/experimental/forward_list (experimental::erase): Qualify
1584 * include/experimental/list (experimental::erase): Likewise.
1585 * include/std/forward_list (std::erase): Likewise.
1586 * include/std/list (std::erase): Likewise.
1588 * testsuite/20_util/reference_wrapper/result_type.cc: Disable for
1590 * testsuite/20_util/reference_wrapper/typedefs-2.cc: Likewise.
1591 * testsuite/20_util/reference_wrapper/typedefs-3.cc: Likewise.
1592 * testsuite/20_util/reference_wrapper/typedefs.cc: Likewise.
1593 * testsuite/30_threads/async/54297.cc: Suppress nodiscard warning.
1594 * testsuite/ext/array_allocator/26875.cc: Likewise.
1595 * testsuite/ext/pool_allocator/allocate_chunk.cc: Likewise.
1596 * testsuite/util/replacement_memory_operators.h: Likewise.
1597 * testsuite/util/testsuite_allocator.h: Likewise.
1599 * include/std/memory_resource (__pool_resource::_M_unpooled): Use
1600 normal mode vector, even for debug mode.
1601 * include/std/vector [_GLIBCXX_DEBUG] (_GLIBCXX_STD_C::pmr::vector):
1602 Define alias template for normal mode vector.
1604 2019-01-28 Jonathan Wakely <jwakely@redhat.com>
1607 * config/locale/generic/c_locale.h (__convert_from_v)
1608 [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
1609 * config/os/hpux/os_defines.h: Define _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
1610 * include/bits/locale_facets.tcc (num_put::_M_insert_float)
1611 [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
1613 2019-01-24 Jonathan Wakely <jwakely@redhat.com>
1616 * include/bits/stl_vector.h (vector::__use_relocate): Replace static
1617 data member with static member function _S_use_relocate().
1618 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
1619 (vector::_M_default_append): Use _S_use_relocate() instead of
1622 * testsuite/27_io/filesystem/path/compare/strings.cc: Only compare
1625 2019-01-22 Jonathan Wakely <jwakely@redhat.com>
1628 * testsuite/util/testsuite_hooks.h [stderr] (VERIFY): Use fprintf to
1629 write to stderr instead of using printf.
1631 2019-01-21 Jakub Jelinek <jakub@redhat.com>
1634 * include/bits/char_traits.h (__constant_string_p,
1635 __constant_char_array_p): Use __builtin_is_constant_evaluated if
1638 2019-01-20 Ulrich Drepper <drepper@redhat.com>
1640 Implement C++20 P0600r1.
1641 * include/backward/hash_map: Add nodiscard attribute to empty.
1642 * include/backward/hash_set: Likewise.
1643 * backward/hashtable.h: Likewise.
1644 * include/bits/basic_string.h: Likewise.
1645 * include/bits/forward_list.h: Likewise.
1646 * include/bits/hashtable.h: Likewise.
1647 * include/bits/regex.h: Likewise.
1648 * include/bits/stl_deque.h: Likewise.
1649 * include/bits/stl_list.h: Likewise.
1650 * include/bits/stl_map.h: Likewise.
1651 * include/bits/stl_multimap.h: Likewise.
1652 * include/bits/stl_multiset.h: Likewise.
1653 * include/bits/stl_queue.h: Likewise.
1654 * include/bits/stl_set.h: Likewise.
1655 * include/bits/stl_stack.h: Likewise.
1656 * include/bits/stl_tree.h: Likewise.
1657 * include/bits/stl_vector.h: Likewise.
1658 * include/bits/unordered_map.h: Likewise.
1659 * include/bits/unordered_set.h: Likewise.
1660 * include/debug/array: Likewise.
1661 * include/experimental/any: Likewise.
1662 * include/experimental/bits/fs_path.h: Likewise.
1663 * include/experimental/internet: Likewise.
1664 * include/experimental/string_view: Likewise.
1665 * include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp:
1667 * include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp:
1669 * include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp:
1671 * include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp:
1673 * include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp:
1675 * include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp:
1677 * include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp:
1679 * include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp:
1681 * include/ext/pb_ds/detail/left_child_next_sibling_heap_/
1682 info_fn_imps.hpp: Likewise.
1683 * include/ext/pb_ds/detail/left_child_next_sibling_heap_/
1684 left_child_next_sibling_heap_.hpp: Likewise.
1685 * include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp:
1687 * include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp:
1689 * include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp:
1691 * include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hp:
1693 * include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp:
1695 * include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp:
1697 * include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp:
1699 * include/ext/pb_ds/detail/tree_trace_base.hpp: Likewise.
1700 * include/ext/pb_ds/trie_policy.hpp: Likewise.
1701 * include/ext/rope: Likewise.
1702 * include/ext/slist: Likewise.
1703 * include/ext/vstring.h: Likewise.
1704 * include/profile/array: Likewise.
1705 * include/std/array: Likewise.
1706 * include/tr1/array: Likewise.
1707 * include/tr1/hashtable.h: Likewise.
1708 * include/tr1/regex: Likewise.
1709 * include/tr2/dynamic_bitset: Likewise.
1710 * include/bits/alloc_traits.h: Add nodiscard attribute to
1712 * include/experimental/memory_resource: Likewise.
1713 * include/ext/alloc_traits.h: Likewise.
1714 * include/ext/array_allocator.h: Likewise.
1715 * include/ext/bitmap_allocator.h: Likewise.
1716 * include/ext/debug_allocator.h: Likewise.
1717 * include/ext/extptr_allocator.h: Likewise.
1718 * include/ext/mt_allocator.h: Likewise.
1719 * include/ext/new_allocator.h: Likewise.
1720 * include/ext/pool_allocator.h: Likewise.
1721 * include/ext/throw_allocator.h: Likewise.
1722 * include/std/scoped_allocator: Likewise.
1723 * libsupc++/eh_alloc.cc: Likewise.
1724 * include/std/future: Add nodiscard attribute to async.
1725 * libsupc++/new: Add nodiscard attribute to new.
1727 2019-01-18 Jonathan Wakely <jwakely@redhat.com>
1732 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export new symbol.
1733 * include/bits/shared_ptr.h
1734 (shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...))
1735 (allocate_shared): Change to use new tag type.
1736 * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_eq):
1737 Declare new member function.
1738 (_Sp_alloc_shared_tag): Define new type.
1739 (_Sp_counted_ptr_inplace): Declare __shared_count<_Lp> as a friend.
1740 (_Sp_counted_ptr_inplace::_M_get_deleter) [!__cpp_rtti]: Use
1741 _Sp_make_shared_tag::_S_eq to check type_info.
1742 (__shared_count(Ptr, Deleter),__shared_count(Ptr, Deleter, Alloc)):
1743 Constrain to prevent being called with _Sp_alloc_shared_tag.
1744 (__shared_count(_Sp_make_shared_tag, const _Alloc&, Args&&...)):
1745 Replace constructor with ...
1746 (__shared_count(Tp*&, _Sp_alloc_shared_tag<_Alloc>, Args&&...)): Use
1747 reference parameter so address of the new object can be returned to
1748 the caller. Obtain the allocator from the tag type.
1749 (__shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)): Replace
1750 constructor with ...
1751 (__shared_ptr(_Sp_alloc_shared_tag<Alloc>, Args&&...)): Pass _M_ptr
1752 to the __shared_count constructor.
1753 (__allocate_shared): Change to use new tag type.
1754 * src/c++11/shared_ptr.cc (_Sp_make_shared_tag::_S_eq): Define.
1756 2019-01-17 Jonathan Wakely <jwakely@redhat.com>
1758 * src/c++17/fs_ops.cc
1759 (equivalent(const path&, const path&, error_code&))
1760 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use GetFileInformationByHandle to
1761 compare files instead of relying on incomplete info returned by stat.
1764 * src/c++17/fs_ops.cc (absolute(const path&, error_code&)): Do nothing
1765 if the path is already absolute.
1766 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize root-directory.
1767 [!_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Pass error_code to current_path.
1770 * src/c++17/fs_ops.cc (canonical(const path&, error_code&))
1771 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize path, to match behaviour
1772 of filesystem::exists.
1773 (create_directories(const path&, error_code&)): Add assertions.
1774 (status(const path&, error_code&)) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]:
1775 Add workaround for bug in _wstat for paths with trailing slash.
1776 * testsuite/27_io/filesystem/operations/create_directories.cc: Adjust
1777 for expected behaviour on mingw.
1778 * testsuite/experimental/filesystem/operations/create_directories.cc:
1780 * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Use
1781 "TMP" instead of "TMPDIR" and clean environment before each test. Do
1782 not test permissions on mingw targets.
1784 2019-01-16 Jonathan Wakely <jwakely@redhat.com>
1786 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add exports for fstream
1787 constructors and open members taking wide strings. Fix patterns for
1788 filesystem::path members to match wstring_view parameters. Add
1789 exports for shared_ptr members used by directory iterators.
1790 * src/c++17/fs_ops.cc (remove(const path&, error_code&)): Clear the
1791 error code parameter if the file doesn't exist.
1792 * src/filesystem/ops.cc (remove(const path&, error_code&)):
1794 * testsuite/27_io/filesystem/operations/canonical.cc: Fix expected
1795 values for mingw targets, where "/" is not an absolute path. Do not
1796 test symlinks on mingw targets.
1797 * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
1798 * testsuite/27_io/filesystem/operations/copy.cc: Do not test symlinks
1800 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
1801 * testsuite/27_io/filesystem/operations/create_directories.cc: Check
1802 that each component of the path is created.
1803 * testsuite/experimental/filesystem/operations/create_directories.cc:
1805 * testsuite/27_io/filesystem/operations/exists.cc: Do not test
1806 permissions on mingw targets.
1807 * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
1808 * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
1809 * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
1810 * testsuite/27_io/filesystem/operations/permissions.cc: XFAIL for
1812 * testsuite/experimental/filesystem/operations/permissions.cc:
1814 * testsuite/27_io/filesystem/operations/remove.cc: Do not test
1815 symlinks or permissions on mingw targets.
1816 * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
1817 * testsuite/27_io/filesystem/operations/remove_all.cc: Do not test
1818 symlinks on mingw targets.
1819 * testsuite/experimental/filesystem/operations/remove_all.cc:
1821 * testsuite/27_io/filesystem/operations/status.cc: Do not test
1822 permissions on mingw targets.
1823 * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Do not
1824 test symlinks on mingw targets.
1825 * testsuite/experimental/filesystem/operations/space.cc: Fix test
1828 2019-02-14 Ulrich Drepper <drepper@redhat.com>
1831 Warn about unused comparisons of shared_ptr/unique_ptr
1832 * include/bits/c++config [_GLIBCXX_NODISCARD]: Define.
1833 * include/bits/shared_ptr.h: Use it for operator ==, !=,
1834 <, <=, >, >= for shared_ptr.
1835 * include/bits/unique_ptr.h: Likewise for unique_ptr.
1837 2019-01-15 Jonathan Wakely <jwakely@redhat.com>
1839 * include/bits/shared_ptr_base.h (__cpp_lib_shared_ptr_arrays): Define
1840 as 201611L, because P0497R0 changes are supported.
1841 * include/std/version (__cpp_lib_shared_ptr_arrays): Likewise.
1843 * include/bits/erase_if.h [__cplusplus > 201703L]
1844 (__cpp_lib_erase_if): Only define for C++2a.
1845 * include/std/iterator [__cplusplus >= 201402L && !_GLIBCXX_DEBUG]
1846 (__cpp_lib_null_iterators): Define.
1847 * include/std/version [__cplusplus >= 201402L && !_GLIBCXX_DEBUG]
1848 (__cpp_lib_null_iterators): Define.
1849 [__cpp_impl_destroying_delete] (__cpp_lib_destroying_delete): Define.
1851 * doc/xml/manual/status_cxx2017.xml: Document P0032R3 and P0307R2
1853 * include/bits/stl_uninitialized.h (__cpp_lib_raw_memory_algorithms):
1855 * include/std/any (__cpp_lib_any): Define as 201606L, because P0032R3
1856 changes are supported.
1857 * include/std/optional (__cpp_lib_optional): Likewise.
1858 * include/std/variant (__cpp_lib_variant): Likewise.
1859 * include/std/version [!__STRICT_ANSI__]
1860 (__cpp_lib_uncaught_exceptions): Define as long integer.
1861 [__cplusplus >= 201703L] (__cpp_lib_any)
1862 (__cpp_lib_raw_memory_algorithms, __cpp_lib_uncaught_exceptions)
1863 (__cpp_lib_variant): Define for C++17.
1864 [__cplusplus >= 201703L] (__cpp_lib_optional): Update value and define
1866 * libsupc++/exception (__cpp_lib_uncaught_exceptions): Define as long
1869 * doc/xml/manual/status_cxx2020.xml: Update P1123R0 status.
1871 2019-01-12 Jonathan Wakely <jwakely@redhat.com>
1875 * src/filesystem/path.cc: Fix typo. If first path is empty, show []
1877 * testsuite/experimental/filesystem/filesystem_error/cons.cc: New
1880 2019-01-11 Jonathan Wakely <jwakely@redhat.com>
1882 * doc/xml/manual/intro.xml: Include new section.
1883 * doc/xml/manual/status_cxx2017.xml: Document more
1884 implementation-defined properties of the library.
1885 * doc/xml/manual/status_cxx2020.xml: Document C++2a status.
1886 * doc/html/*: Regenerate.
1888 * include/bits/refwrap.h [__cplusplus > 201703L]
1889 (_Refwrap_base_arg1, _Refwrap_base_arg2, _Reference_wrapper_base)
1890 (_Reference_wrapper_base_memfun): Do not define for C++2a.
1891 (reference_wrapper): Do not derive from _Reference_wrapper_base_memfun
1893 (reference_wrapper::operator()): Add static assertion.
1894 * testsuite/20_util/reference_wrapper/incomplete.cc: New test.
1896 * include/std/chrono (duration_values::zero(), duration_values::min())
1897 (duration_values::max()): Add noexcept.
1898 (duration::zero(), duration::min(), duration::max()): Likewise.
1899 (time_point::zero(), time_point::min(), time_point::max()): Likewise.
1900 * testsuite/20_util/duration/requirements/noexcept.cc: New test.
1901 * testsuite/20_util/time_point/requirements/noexcept.cc: New test.
1903 * include/std/version (__cpp_lib_erase_if): Move to C++20 group.
1905 2019-01-11 Jakub Jelinek <jakub@redhat.com>
1907 * include/std/type_traits (__cpp_lib_is_constant_evaluated): Define.
1908 * include/std/version (__cpp_lib_is_constant_evaluated): Define.
1910 2019-01-11 Jonathan Wakely <jwakely@redhat.com>
1913 * include/bits/functional_hash.h (hash<nullptr_t>): Define
1914 specialization for C++17 (P0513R0, LWG 2817).
1915 * testsuite/20_util/hash/nullptr.cc: New test.
1918 * config/abi/pre/gnu.ver (GLIBCXX_3.4.6): Remove unused duplicate
1919 pattern for std::basic_stringbuf::str().
1921 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Correct recent changes to
1922 basic_ostream::operator<< patterns.
1924 2019-01-10 Jonathan Wakely <jwakely@redhat.com>
1926 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fix
1927 test failures on targets with 32-bit time_t.
1929 * include/bits/erase_if.h: Define __cpp_lib_erase_if.
1930 * include/std/deque: Likewise.
1931 * include/std/forward_list: Likewise.
1932 * include/std/list: Likewise.
1933 * include/std/string: Likewise.
1934 * include/std/vector: Likewise.
1935 * include/std/version: Likewise.
1936 * testsuite/21_strings/basic_string/erasure.cc: Test macro.
1937 * testsuite/23_containers/deque/erasure.cc: Likewise.
1938 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
1939 * testsuite/23_containers/list/erasure.cc: Likewise.
1940 * testsuite/23_containers/map/erasure.cc: Likewise.
1941 * testsuite/23_containers/set/erasure.cc: Likewise.
1942 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
1943 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
1944 * testsuite/23_containers/vector/erasure.cc: Likewise.
1946 * include/experimental/internet [AI_NUMERICSERV]
1947 (resolver_base::numeric_service): Define conditionally.
1948 * testsuite/experimental/net/internet/resolver/base.cc: Test it
1950 * testsuite/experimental/net/internet/resolver/ops/lookup.cc:
1953 2019-01-10 Ville Voutilainen <ville.voutilainen@gmail.com>
1954 Jonathan Wakely <jwakely@redhat.com>
1957 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten patterns.
1958 (GLIBCXX_3.4.26): Add new exports.
1959 * include/Makefile.am: Add ostream-inst.cc. Move string-inst.cc to
1960 correct list of sources.
1961 * include/Makefile.in: Regenerate.
1962 * include/std/ostream (operator<<(nullptr_t)): New member function.
1963 * src/c++17/ostream-inst.cc: New file.
1964 * testsuite/27_io/basic_ostream/inserters_other/char/lwg2221.cc: New
1967 2019-01-10 Jonathan Wakely <jwakely@redhat.com>
1969 * testsuite/util/testsuite_fs.h (nonexistent_path): Include name
1970 of the source file containing the caller.
1971 * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Remove
1972 directories created by test.
1973 * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
1975 * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
1977 * testsuite/experimental/filesystem/iterators/
1978 recursive_directory_iterator.cc: Likewise.
1980 2019-01-10 Jakub Jelinek <jakub@redhat.com>
1982 PR tree-optimization/88775
1983 * include/bits/stl_function.h (greater<_Tp*>::operator(),
1984 less<_Tp*>::operator(), greater_equal<_Tp*>::operator(),
1985 less_equal<_Tp*>::operator()): Use __builtin_is_constant_evaluated
1986 instead of __builtin_constant_p if available. Don't bother with
1987 the pointer comparison in C++11 and earlier.
1989 2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
1993 * include/ext/bitmap_allocator.h: Mechanically replace "can not"
1996 2019-01-09 Jonathan Wakely <jwakely@redhat.com>
1998 * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix expected output
1999 for filesystem::path. Give variables more distinctive names.
2001 * include/std/optional (_Optional_payload_base::_M_copy_assign): New
2002 member function to perform non-trivial assignment.
2003 (_Optional_payload_base::_M_move_assign): Likewise.
2004 (_Optional_payload<T, true, false, true>::operator=)
2005 (_Optional_payload<T, true, true, false>::operator=)
2006 (_Optional_payload<T, true, false, false>::operator=): Call
2007 _M_copy_assign and/or _M_move_assign to do non-trivial assignments.
2010 * testsuite/26_numerics/complex/operators/more_constexpr.cc: Do not
2011 test std::complex<long double> if long double format is IBM128.
2012 * testsuite/26_numerics/complex/requirements/more_constexpr.cc:
2015 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
2017 * testsuite/libstdc++-prettyprinters/compat.cc: Test printer support
2018 for old std::unique_ptr layout.
2019 * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix std::variant test
2020 to become valueless. Add filesystem::path tests.
2023 * include/std/optional (_Optional_payload_base): New class template
2024 for common code hoisted from _Optional_payload specializations. Use
2025 a template for the union, to allow a partial specialization for
2026 types with non-trivial destructors. Add constructors for in-place
2027 initialization to the union.
2028 (_Optional_payload(bool, const _Optional_payload&)): Use _M_construct
2029 to perform non-trivial copy construction, instead of relying on
2030 non-standard copy elision in a delegating constructor.
2031 (_Optional_payload(bool, _Optional_payload&&)): Likewise for
2032 non-trivial move construction.
2033 (_Optional_payload): Derive from _Optional_payload_base and use it
2034 for everything except the non-trivial assignment operators, which are
2036 (_Optional_payload<false, C, M>): Derive from the specialization
2037 _Optional_payload<true, false, false> and add a destructor.
2038 (_Optional_base_impl::_M_destruct, _Optional_base_impl::_M_reset):
2039 Forward to corresponding members of _Optional_payload.
2040 (_Optional_base_impl::_M_is_engaged, _Optional_base_impl::_M_get):
2041 Hoist common members from _Optional_base.
2042 (_Optional_base): Make all members and base class public.
2043 (_Optional_base::_M_get, _Optional_base::_M_is_engaged): Move to
2044 _Optional_base_impl.
2045 * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Add
2046 support for new std::optional layout.
2047 * testsuite/libstdc++-prettyprinters/compat.cc: New test.
2050 * include/bits/locale_conv.h: Use <> for includes not "".
2051 * include/ext/random: Likewise.
2052 * include/ext/vstring.h: Likewise.
2054 2019-01-08 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
2056 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten existing patterns.
2057 (GLIBCXX_3.4.21): Likewise.
2059 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
2062 * src/filesystem/ops.cc (last_write_time): Fix preprocessor condition
2063 to match the one that controls whether utimbuf and utime are declared.
2065 2019-01-07 Jonathan Wakely <jwakely@redhat.com>
2068 * include/bits/char_traits.h (char_traits::move): Do not pass null
2069 pointers to memmove.
2070 * include/bits/locale_facets.h
2071 (ctype<char>::widen(const char*, const char*, char*)): Do not
2072 pass null pointers to memcpy.
2073 (ctype<char>::narrow(const char*, const char*, char, char*)):
2075 (ctype<char>::do_widen(const char*, const char*, char*)):
2077 (ctype<char>::do_narrow(const char*, const char*, char, char*)):
2080 * doc/xml/manual/spine.xml: Update copyright years.
2081 * doc/xml/manual/status_cxx2017.xml: Adjust note about -lstdc++fs.
2082 * doc/xml/manual/using.xml: Remove requirement to link with -lstdc++fs
2083 for C++17 filesystem library.
2084 * doc/html/*: Regenerate.
2086 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for truncate.
2087 * config.h.in: Regenerate.
2088 * config/abi/pre/gnu.ver: Order patterns for filesystem operations
2089 alphabetically and add missing entries for copy_symlink,
2090 hard_link_count, rename, and resize_file.
2091 * configure: Regenerate.
2092 * src/c++17/fs_ops.cc (resize_file): Remove #if so posix::truncate is
2093 used unconditionally.
2094 * src/filesystem/ops-common.h (__gnu_posix::truncate)
2095 [!_GLIBCXX_HAVE_TRUNCATE]: Provide fallback definition that only
2096 supports truncating to zero length.
2097 * testsuite/27_io/filesystem/operations/all.cc: New test.
2098 * testsuite/27_io/filesystem/operations/resize_file.cc: New test.
2100 2019-01-06 Jonathan Wakely <jwakely@redhat.com>
2103 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for utime and
2104 lstat and define _GLIBCXX_USE_UTIME and _GLIBCXX_USE_LSTAT.
2105 * config.h.in: Regenerate.
2106 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export symbols for
2107 remaining std::filesystem types and functions.
2108 * configure: Regenerate.
2109 * src/c++17/Makefile.am: Add C++17 filesystem sources.
2110 * src/c++17/Makefile.in: Regenerate.
2111 * src/c++17/cow-fs_dir.cc: Move src/filesystem/cow-std-dir.cc to
2112 here, and change name of included file.
2113 * src/c++17/cow-fs_ops.cc: Move src/filesystem/cow-std-ops.cc to
2114 here, and change name of included file.
2115 * src/c++17/fs_dir.cc: Move src/filesystem/std-dir.cc to here. Change
2116 path to dir-common.h.
2117 * src/c++17/fs_ops.cc: Move src/filesystem/std-ops.cc to here. Change
2118 path to ops-common.h. Disable -Wunused-parameter warnings.
2119 (internal_file_clock): Define unconditionally.
2120 [!_GLIBCXX_HAVE_SYS_STAT_H] (internal_file_clock::from_stat): Do not
2122 (do_copy_file, do_space): Move definitions to ops.common.h.
2123 (copy, file_size, hard_link_count, last_write_time, space): Only
2124 perform operation when _GLIBCXX_HAVE_SYS_STAT_H is defined, otherwise
2126 (last_write_time, read_symlink): Remove unused attributes from
2128 * src/filesystem/Makefile.am: Remove C++17 filesystem sources.
2129 * src/filesystem/Makefile.in: Regenerate.
2130 * src/filesystem/cow-std-dir.cc: Move to src/c++17/cow-fs_dir.cc.
2131 * src/filesystem/cow-std-ops.cc: Move to src/c++17/cow-fs_ops.cc.
2132 * src/filesystem/std-dir.cc: Move to src/c++17/fs_dir.cc.
2133 * src/filesystem/std-ops.cc: Move to src/c++17/fs_ops.cc.
2134 * src/filesystem/dir-common.h [!_GLIBCXX_HAVE_DIRENT_H]: Define
2135 dummy types and functions instead of using #error.
2136 * src/filesystem/dir.cc [!_GLIBCXX_HAVE_DIRENT_H]: Use #error.
2137 * src/filesystem/ops-common.h [!_GLIBCXX_USE_LSTAT] (lstat): Define
2139 [!_GLIBCXX_HAVE_UNISTD_H]: Define dummy types and functions.
2140 (do_copy_file, do_space): Move definitions here from std-ops.cc.
2141 * src/filesystem/ops.cc: Adjust calls to do_copy_file and do_space
2142 to account for new namespace.
2143 * testsuite/27_io/filesystem/directory_entry/86597.cc: Remove
2144 -lstdc++fs from dg-options.
2145 * testsuite/27_io/filesystem/directory_entry/lwg3171.cc: Likewise.
2146 * testsuite/27_io/filesystem/file_status/1.cc: Likewise.
2147 * testsuite/27_io/filesystem/filesystem_error/cons.cc: Likewise.
2148 * testsuite/27_io/filesystem/filesystem_error/copy.cc: Likewise.
2149 * testsuite/27_io/filesystem/iterators/directory_iterator.cc:
2151 * testsuite/27_io/filesystem/iterators/pop.cc: Likewise.
2152 * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
2154 * testsuite/27_io/filesystem/operations/absolute.cc: Likewise.
2155 * testsuite/27_io/filesystem/operations/canonical.cc: Likewise.
2156 * testsuite/27_io/filesystem/operations/copy.cc: Likewise.
2157 * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
2158 * testsuite/27_io/filesystem/operations/create_directories.cc:
2160 * testsuite/27_io/filesystem/operations/create_directory.cc: Likewise.
2161 * testsuite/27_io/filesystem/operations/create_symlink.cc: Likewise.
2162 * testsuite/27_io/filesystem/operations/current_path.cc: Likewise.
2163 * testsuite/27_io/filesystem/operations/equivalent.cc: Likewise.
2164 * testsuite/27_io/filesystem/operations/exists.cc: Likewise.
2165 * testsuite/27_io/filesystem/operations/file_size.cc: Likewise.
2166 * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
2167 * testsuite/27_io/filesystem/operations/last_write_time.cc: Likewise.
2168 * testsuite/27_io/filesystem/operations/permissions.cc: Likewise.
2169 * testsuite/27_io/filesystem/operations/proximate.cc: Likewise.
2170 * testsuite/27_io/filesystem/operations/read_symlink.cc: Likewise.
2171 * testsuite/27_io/filesystem/operations/relative.cc: Likewise.
2172 * testsuite/27_io/filesystem/operations/remove.cc: Likewise.
2173 * testsuite/27_io/filesystem/operations/remove_all.cc: Likewise.
2174 * testsuite/27_io/filesystem/operations/space.cc: Likewise.
2175 * testsuite/27_io/filesystem/operations/status.cc: Likewise.
2176 * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
2177 * testsuite/27_io/filesystem/operations/temp_directory_path.cc:
2179 * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Likewise.
2183 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Make various patterns for
2184 typeinfo and vtables less greedy.
2185 (GLIBCXX_3.4.26): Export symbols for std::filesystem::path.
2186 * src/c++17/Makefile.am: Add fs_path.cc and cow-fs_path.cc.
2187 * src/c++17/Makefile.in: Regenerate.
2188 * src/c++17/cow-fs_path.cc: Move src/filesystem/cow-std-path.cc to
2189 here, and change name of included file.
2190 * src/c++17/fs_path.cc: Move src/filesystem/std-path.cc to here.
2191 * src/filesystem/Makefile.am: Remove std-path.cc and cow-std-path.cc
2193 * src/filesystem/Makefile.in: Regenerate.
2194 * src/filesystem/cow-std-path.cc: Move to src/c++17/cow-fs_path.cc.
2195 * src/filesystem/std-path.cc: Move to src/c++17/fs_path.cc.
2196 * testsuite/27_io/filesystem/path/append/path.cc: Remove -lstdc++fs
2197 from dg-options and remove dg-require-filesystem-ts.
2198 * testsuite/27_io/filesystem/path/append/source.cc: Likewise.
2199 * testsuite/27_io/filesystem/path/assign/assign.cc: Likewise.
2200 * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
2201 * testsuite/27_io/filesystem/path/compare/compare.cc: Likewise.
2202 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
2203 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
2204 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
2205 * testsuite/27_io/filesystem/path/concat/path.cc: Likewise.
2206 * testsuite/27_io/filesystem/path/concat/strings.cc: Likewise.
2207 * testsuite/27_io/filesystem/path/construct/80762.cc: Likewise.
2208 * testsuite/27_io/filesystem/path/construct/copy.cc: Likewise.
2209 * testsuite/27_io/filesystem/path/construct/default.cc: Likewise.
2210 * testsuite/27_io/filesystem/path/construct/format.cc: Likewise.
2211 * testsuite/27_io/filesystem/path/construct/locale.cc: Likewise.
2212 * testsuite/27_io/filesystem/path/construct/range.cc: Likewise.
2213 * testsuite/27_io/filesystem/path/construct/string_view.cc: Likewise.
2214 * testsuite/27_io/filesystem/path/decompose/extension.cc: Likewise.
2215 * testsuite/27_io/filesystem/path/decompose/filename.cc: Likewise.
2216 * testsuite/27_io/filesystem/path/decompose/parent_path.cc: Likewise.
2217 * testsuite/27_io/filesystem/path/decompose/relative_path.cc: Likewise.
2218 * testsuite/27_io/filesystem/path/decompose/root_directory.cc:
2220 * testsuite/27_io/filesystem/path/decompose/root_name.cc: Likewise.
2221 * testsuite/27_io/filesystem/path/decompose/root_path.cc: Likewise.
2222 * testsuite/27_io/filesystem/path/decompose/stem.cc: Likewise.
2223 * testsuite/27_io/filesystem/path/generation/normal.cc: Likewise.
2224 * testsuite/27_io/filesystem/path/generation/normal2.cc: Likewise.
2225 * testsuite/27_io/filesystem/path/generation/proximate.cc: Likewise.
2226 * testsuite/27_io/filesystem/path/generation/relative.cc: Likewise.
2227 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Likewise.
2228 * testsuite/27_io/filesystem/path/itr/components.cc: Likewise.
2229 * testsuite/27_io/filesystem/path/itr/traversal.cc: Likewise.
2230 * testsuite/27_io/filesystem/path/modifiers/clear.cc: Likewise.
2231 * testsuite/27_io/filesystem/path/modifiers/make_preferred.cc:
2233 * testsuite/27_io/filesystem/path/modifiers/remove_filename.cc:
2235 * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
2237 * testsuite/27_io/filesystem/path/modifiers/replace_filename.cc:
2239 * testsuite/27_io/filesystem/path/modifiers/swap.cc: Likewise.
2240 * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
2241 * testsuite/27_io/filesystem/path/nonmember/append.cc: Likewise.
2242 * testsuite/27_io/filesystem/path/nonmember/hash_value.cc: Likewise.
2243 * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
2244 * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
2245 * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
2246 * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
2247 * testsuite/27_io/filesystem/path/query/has_relative_path.cc: Likewise.
2248 * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
2250 * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
2251 * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
2252 * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
2253 * testsuite/27_io/filesystem/path/query/is_absolute.cc: Likewise.
2254 * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
2257 * include/std/variant (_Variant_storage<true, _Types...>::_M_valid):
2258 Check is_trivially_copyable instead of is_scalar.
2259 (variant::emplace<N, Args>(Args&&...)): If construction of the new
2260 contained value can throw and its type is trivially copyable then
2261 construct into a temporary variant and move from it, to provide the
2262 strong exception safety guarantee.
2263 (variant::emplace<N, U, Args>(initializer_list<U>, Args&&...)):
2265 * testsuite/20_util/variant/87431.cc: New test.
2266 * testsuite/20_util/variant/run.cc: Adjust test so that throwing
2267 conversion causes valueless state.
2270 * testsuite/17_intro/headers/c++1998/charset.cc: New test.
2271 * testsuite/17_intro/headers/c++2011/charset.cc: New test.
2272 * testsuite/17_intro/headers/c++2014/charset.cc: New test.
2273 * testsuite/17_intro/headers/c++2017/charset.cc: New test.
2274 * testsuite/17_intro/headers/c++2020/charset.cc: New test.
2276 2019-01-05 Jonathan Wakely <jwakely@redhat.com>
2278 * include/bits/fs_fwd.h (__file_clock): Define new clock.
2279 (file_time_type): Redefine in terms of __file_clock.
2280 * src/filesystem/ops-common.h (file_time): Add FIXME comment about
2282 * src/filesystem/std-ops.cc (is_set(perm_options, perm_options)): Give
2284 (internal_file_lock): New helper type for accessing __file_clock.
2285 (do_copy_file): Use internal_file_lock to convert system time to
2287 (last_write_time(const path&, error_code&)): Likewise.
2288 (last_write_time(const path&, file_time_type, error_code&)): Likewise.
2290 2019-01-04 Jonathan Wakely <jwakely@redhat.com>
2292 * config/abi/pre/gnu.ver (GLIBCXX_3.4.21): Make patterns less greedy
2293 for const member functions of std::basic_string.
2294 (GLIBCXX_3.4.26): Export member functions of std::basic_string added
2296 * include/bits/basic_string.h (basic_string(__sv_wrapper, const A&)):
2297 Make non-standard constructor private.
2298 [!_GLIBCXX_USE_CXX11_ABI] (basic_string(__sv_wrapper, const A&)):
2300 * include/bits/basic_string.tcc (std::string, std::wstring): Declare
2301 explicit instantiations for C++17 as well as earlier dialects.
2302 * src/c++17/Makefile.am: Add new source files.
2303 * src/c++17/Makefile.in: Regenerate.
2304 * src/c++17/cow-string-inst.cc: New file defining explicit
2305 instantiations for basic_string member functions added in C++17.
2306 * src/c++17/string-inst.cc: Likewise.
2308 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export allocator-extended
2309 copy/move constructors for old std::basic_string.
2310 * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
2311 (basic_string::reference, basic_string::const_reference): Define
2312 as plain references for C++11 and later.
2313 (basic_string::basic_string()): Put constructor body outside
2314 preprocessor conditional groups.
2315 (basic_string::basic_string(basic_string&&)): Move _Alloc_hider
2316 instead of copying it.
2317 (basic_string::basic_string(const basic_string&, const _Alloc&)):
2319 (basic_string::basic_string(basic_string&&, const _Alloc&)):
2321 * include/bits/fs_path.h [!_GLIBCXX_USE_CXX11_ABI]: Remove special
2322 cases for old basic_string.
2323 * testsuite/21_strings/basic_string/cons/char/8.cc: Test
2324 allocator-extended constructors unconditionally. Add extra members to
2325 allocator type when using old string ABI.
2326 * testsuite/21_strings/basic_string/allocator/71964.cc: Enable test
2328 * testsuite/21_strings/basic_string/cons/wchar_t/8.cc: Likewise.
2330 * testsuite/23_containers/list/61347.cc: Avoid spurious failure when
2331 -fno-inline added to test flags.
2333 * testsuite/21_strings/basic_string/requirements/
2334 explicit_instantiation/debug.cc: Remove XFAIL for old ABI.
2336 * testsuite/27_io/filesystem/filesystem_error/copy.cc: Fix static
2337 assertion failures with old std::string ABI.
2339 * include/bits/fs_path.h (path::_List::erase): Replace both overloads
2341 (path::pop_back(), path::_M_erase_from(const_iterator)): New member
2342 functions that will only erase elements at the end.
2343 * src/filesystem/std-path.cc (path::_List::_Impl::pop_back()): Define.
2344 (path::_List::_Impl::_M_erase_from(const_iterator)): Define.
2345 (path::_List::operator=(const _List&)): Use _M_erase_from(p) instead
2347 (path::_List::pop_back()): Define.
2348 (path::_List::_M_erase_from(const_iterator)): Define.
2349 (path::operator/=(const path&)): Use pop_back to remove last component
2350 and _M_erase_from to remove multiple components.
2351 (path::_M_append(basic_string_view<value_type>)): Likewise.
2352 (path::operator+=(const path&)): Likewise.
2353 (path::_M_concat(basic_string_view<value_type>)): Likewise.
2354 (path::remove_filename()): Likewise.
2355 (path::lexically_normal()): Use _List::_Impl iterators instead of
2356 path::iterator. Use pop_back to remove components from the end. Clear
2357 trailing filename, instead of using erase(const_iterator) to remove
2358 a non-final component.
2359 * testsuite/27_io/filesystem/path/generation/normal.cc: Test
2361 * testsuite/27_io/filesystem/path/generation/normal2.cc: New test.
2363 * src/filesystem/std-path.cc (path::operator+=(const path&)): Fix
2364 incorrect treatment of empty filename after trailing slash.
2365 * testsuite/27_io/filesystem/path/concat/path.cc: Test problem case.
2367 * testsuite/21_strings/basic_string/modifiers/assign/char/
2368 move_assign_optim.cc: Avoid spurious failure when -fno-inline added
2370 * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
2371 move_assign_optim.cc: Likewise.
2373 2019-01-03 Jonathan Wakely <jwakely@redhat.com>
2374 Jakub Jelinek <jakub@redhat.com>
2377 * include/experimental/memory: Replace UTF-8 quote characters.
2378 * include/std/future: Replace UTF-8 "em dash" characters.
2380 2019-01-03 Jonathan Wakely <jwakely@redhat.com>
2383 * include/bits/forward_list.h: Replace UTF-8 "ligature fi" character.
2384 * include/debug/forward_list: Likewise.
2385 * include/experimental/bits/shared_ptr.h: Remove UTF-8 "section sign"
2387 * include/experimental/chrono: Likewise.
2388 * include/experimental/functional: Likewise.
2389 * include/experimental/ratio: Likewise.
2390 * include/experimental/system_error: Likewise.
2391 * include/experimental/tuple: Likewise.
2392 * include/experimental/type_traits: Likewise.
2393 * include/parallel/workstealing.h: Replace UTF-8 "en dash" character.
2394 * include/parallel/multiseq_selection.h: Likewise.
2397 * config/abi/pre/gnu.ver: Add missing exports.
2398 * testsuite/22_locale/collate_byname/88681.cc: New test.
2399 * testsuite/22_locale/time_get/get/char/88681.cc: New test.
2400 * testsuite/22_locale/time_get/get/wchar_t/88681.cc: New test.
2402 2019-01-02 Jonathan Wakely <jwakely@redhat.com>
2404 * testsuite/23_containers/map/cons/deduction.cc: Test deduction from
2405 initializer_list<value_type> and from input iterator ranges.
2406 * testsuite/23_containers/multimap/cons/deduction.cc: Likewise.
2408 * testsuite/experimental/string_view/element_access/char/empty.cc:
2409 Fix year range in copyright header.
2411 2019-01-02 Joel Brobecker <brobecker@adacore.com>
2413 * testsuite/21_strings/basic_string_view/element_access/char/empty.cc:
2414 Fix year range in copyright header.
2416 2019-01-01 Jakub Jelinek <jakub@redhat.com>
2418 Update copyright years.
2420 Copyright (C) 2019 Free Software Foundation, Inc.
2422 Copying and distribution of this file, with or without modification,
2423 are permitted in any medium without royalty provided the copyright
2424 notice and this notice are preserved.