1 2019-05-29 Jonathan Wakely <jwakely@redhat.com>
3 PR libstdc++/85494 use rdseed and rand_s in std::random_device
4 * acinclude.m4 (GLIBCXX_CHECK_X86_RDSEED): Define macro to check if
5 the assembler supports rdseed.
6 * config.h.in: Regenerate.
7 * configure: Regenerate.
8 * configure.ac: Use GLIBCXX_CHECK_X86_RDSEED.
9 * config/os/mingw32-w64/os_defines.h (_GLIBCXX_USE_CRT_RAND_S): Define.
10 * doc/html/*: Regenerate.
11 * doc/xml/manual/status_cxx2011.xml: Document new tokens.
12 * include/bits/random.h (random_device::random_device()): Always call
13 _M_init rather than _M_init_pretr1.
14 (random_device::random_device(const string&)): Likewise.
15 (random_device::operator()()): Always call _M_getval().
16 (random_device::_M_file): Replace first member of union with an
17 anonymous struct, with _M_file as its first member.
18 * src/c++11/random.cc [_GLIBCXX_X86_RDRAND] (USE_RDRAND): Define.
19 [_GLIBCXX_X86_RDSEED] (USE_RDSEED): Define.
20 (USE_MT19937): Define if none of the above are defined.
21 (USE_POSIX_FILE_IO): Define.
23 [USE_RDSEED] (__x86_rdseed): Define new function.
24 [_GLIBCXX_USE_CRT_RAND_S] (__winxp_rand_s): Define new function.
25 (random_device::_M_init(const string&)): Initialize new union members.
26 Add support for "rdseed" and "rand_s" tokens. Decide what the
27 "default" token does according to which USE_* macros are defined.
28 [USE_POSIX_FILE_IO]: Store a file descriptor.
29 [USE_MT19937]: Forward to _M_init_pretr1 instead.
30 (random_device::_M_init_pretr1(const string&)) [USE_MT19937]: Inline
32 [!USE_MT19937]: Call _M_init, transforming the old default token or
33 numeric tokens to "default".
34 (random_device::_M_fini()) [USE_POSIX_FILE_IO]: Use close not fclose.
35 (random_device::_M_getval()): Use new union members to obtain a
36 random number from the stored function pointer or file descriptor.
37 [USE_MT19937]: Obtain a value from the mt19937 engine.
38 (random_device::_M_getval_pretr1()): Call _M_getval().
39 (random_device::_M_getentropy()) [USE_POSIX_FILE_IO]: Use _M_fd
41 [!USE_MT19937] (mersenne_twister): Do not instantiate when not needed.
42 * testsuite/26_numerics/random/random_device/85494.cc: New test.
44 2019-05-28 Jonathan Wakely <jwakely@redhat.com>
47 * include/experimental/bits/fs_path.h (path::path(path&&)): Only call
48 _M_split_cmpts() for a path with multiple components.
49 (path::_S_is_dir_sep()): Add missing 'static' keyword to function.
50 * src/filesystem/path.cc (path::_M_split_cmpts()): Count number of
51 components and reserve space in vector. Return early when there is
53 * testsuite/27_io/filesystem/path/construct/90634.cc: New test.
54 * testsuite/experimental/filesystem/path/construct/90634.cc: New test.
56 * testsuite/util/testsuite_fs.h (compare_paths): Use three-argument
57 form of std::equals for C++11 compatibility.
59 2019-05-26 Gerald Pfeifer <gerald@pfeifer.com>
61 * doc/xml/manual/appendix_contributing.xml: Update pointer to
62 C++ standard at ansi.org.
64 2019-05-24 Jonathan Wakely <jwakely@redhat.com>
66 * include/std/numeric (midpoint(T*, T*)): Fix incorrect result.
67 * testsuite/26_numerics/midpoint/pointer.cc: Change "compile" test
70 * testsuite/20_util/shared_ptr/cons/alias-rval.cc: Fix test.
71 * testsuite/20_util/shared_ptr/cons/alias.cc: Remove unused function.
73 2019-05-23 Jonathan Wakely <jwakely@redhat.com>
75 * testsuite/20_util/function_objects/invoke/1.cc: Move C++17-specific
77 * testsuite/20_util/function_objects/invoke/3.cc: New test.
78 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Change
79 "compile" test to "run".
81 * doc/xml/manual/intro.xml: Document LWG DR 2996 change.
82 * doc/html/*: Regenerate.
83 * include/bits/shared_ptr.h (shared_ptr(shared_ptr&&, T*)): Add
84 rvalue aliasing constructor.
85 (static_pointer_cast, const_pointer, dynamic_pointer_cast)
86 (reinterpret_pointer_cast): Add overloads taking rvalues.
87 * include/bits/shared_ptr_base.h (__shared_ptr(__shared_ptr&&, T*)):
88 Add rvalue aliasing constructor.
89 * testsuite/20_util/shared_ptr/casts/1.cc: Change "compile" test to
90 "run" and check return values as well as types.
91 * testsuite/20_util/shared_ptr/casts/reinterpret.cc: Likewise.
92 * testsuite/20_util/shared_ptr/casts/rval.cc: New test.
93 * testsuite/20_util/shared_ptr/cons/alias-rval.cc: New test.
94 * testsuite/20_util/shared_ptr/cons/alias.cc: Remove unused return
97 * doc/xml/manual/evolution.xml: Document LWG DR 2921 change.
98 * doc/xml/manual/intro.xml: Likewise.
99 * include/std/future (__create_task_state): Add default arguments
100 to make providing an allocator optional.
101 (packaged_task::packaged_task(F&&)): Call __create_task_state directly
102 instead of delegating to another constructor.
103 (packaged_task::packaged_task(allocator_arg_t, const A&, ...)): Do not
104 define allocator-extended constructors for C++17 and later.
105 * testsuite/30_threads/packaged_task/cons/alloc.cc: Only run test for
107 * testsuite/30_threads/packaged_task/cons/alloc2.cc: Likewise.
108 * testsuite/30_threads/packaged_task/cons/alloc_min.cc: Likewise.
109 * testsuite/30_threads/packaged_task/uses_allocator.cc: Likewise.
111 2019-05-23 Hans-Peter Nilsson <hp@axis.com>
113 * testsuite/26_numerics/random/poisson_distribution/operators/values.cc:
114 Don't run the libstdc++/83237 part on simulator targets.
116 2019-05-23 Jonathan Wakely <jwakely@redhat.com>
118 * doc/xml/manual/status_cxx2017.xml: Add feature test macro for
120 * doc/html/*: Regenerate.
122 * include/experimental/any (__any_caster): Use RTTI if comparing
123 addresses fails, to support non-unique addresses in shared libraries.
124 * include/std/any (__any_caster): Likewise.
127 * include/experimental/any (__any_caster): Constrain to only be
128 callable for object types. Use remove_cv_t instead of decay_t.
129 If the type decays or isn't copy constructible, compare the manager
130 function to a dummy specialization.
131 (__any_caster): Add overload constrained for non-object types.
132 (any::_Manager_internal<_Op>): Add dummy specialization.
133 * testsuite/experimental/any/misc/any_cast.cc: Test function types
136 2019-05-22 Jonathan Wakely <jwakely@redhat.com>
139 * src/c++17/fs_path.cc (path::_List::operator=(const _List&)): Fix
140 reversed arguments to uninitialized_copy_n.
141 * testsuite/27_io/filesystem/path/assign/copy.cc: Check that source
142 is unchanged by copy assignment.
143 * testsuite/util/testsuite_fs.h (compare_paths): Use std::equal to
144 compare path components.
147 * include/experimental/memory_resource: Add system header pragma and
148 do not define anything unless compiled as C++14 or later.
149 (__resource_adaptor_common::__guaranteed_alignment): Remove.
150 (__resource_adaptor_imp::do_allocate): If the requested alignment
151 is a fundamental alignment then either allocate directly from _M_alloc
152 or call the new _M_allocate function.
153 (__resource_adaptor_imp::do_deallocate): Likewise for deallocation.
154 (__resource_adaptor_imp::_M_allocate): New function that uses a copy
155 of the allocator rebound to a POD type with the specified alignment.
156 (__resource_adaptor_imp::_M_deallocate): Likewise for deallocation.
157 * testsuite/experimental/memory_resource/new_delete_resource.cc:
158 Adjust expected allocation sizes.
159 * testsuite/experimental/memory_resource/resource_adaptor.cc: Remove
160 xfail for Solaris x86.
162 2019-05-21 Thomas Rodgers <trodgers@redhat.com>
164 LWG 3062 - Unnecessary decay_t in is_execution_policy_v
165 * include/pstl/execution_defs.h (__enable_if_execution_policy):
166 Use std::__remove_cvref_t when building with GCC.
168 2019-05-21 Jonathan Wakely <jwakely@redhat.com>
171 * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
172 Use "additional_flags" to pass -ltbb to v3_target_compile command.
173 Use check_v3_target_prop_cached to cache the result of the test.
175 * doc/xml/manual/shared_ptr.xml: Fix names of lock policy constants.
177 2019-05-20 Thomas Rodgers <trodgers@redhat.com>
180 * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
181 Changed v3_target_compile check from preprocess to executable.
182 Added "-ltbb" to v3_target_compile flags.
184 2019-05-20 Thomas Rodgers <trodgers@redhat.com>
186 * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
187 Add check for Thread Building Blocks 2018 or later.
189 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
191 * testsuite/experimental/names.cc: Only include Networking TS headers
192 on targets with the necessary Gthreads support.
194 2019-05-20 Marek Polacek <polacek@redhat.com>
196 CWG 2094 - volatile scalars are trivially copyable.
198 * testsuite/20_util/is_trivially_copyable/value.cc: Change the expected
199 result for volatile int.
201 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
203 * testsuite/17_intro/names.cc: Do not check 'ptr' on Solaris.
204 * testsuite/experimental/names.cc: Include <experimental/filesystem>
207 PR c++/90532 Ensure __is_constructible(T[]) is false
208 * include/std/type_traits (__do_is_default_constructible_impl)
209 (__is_default_constructible_atom, __is_default_constructible_safe):
211 (is_default_constructible): Use is_constructible.
212 * testsuite/20_util/is_constructible/value.cc: Check int[] case.
213 * testsuite/20_util/is_default_constructible/value.cc: Likewise.
214 * testsuite/20_util/is_trivially_constructible/value.cc: Likewise.
215 * testsuite/20_util/is_trivially_default_constructible/value.cc:
218 2019-05-20 Pádraig Brady <pbrady@fb.com>
220 * libstdc++-v3/include/ext/new_allocator.h (deallocate): Pass the size
221 to the deallocator with -fsized-deallocation.
223 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
225 * testsuite/experimental/memory_resource/new_delete_resource.cc: Fix
226 test by passing correct alignment to deallocate function.
228 2019-05-18 Jonathan Wakely <jwakely@redhat.com>
231 * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__):
232 Raise exception if unique_ptr tuple member has unknown structure.
233 * python/libstdcxx/v6/xmethods.py (UniquePtrGetWorker.__call__):
234 Adjust worker to support new __uniq_ptr_data base class. Do not
235 assume field called _M_head_impl is the first tuple element.
237 2019-05-17 François Dumont <fdumont@gcc.gnu.org>
239 * include/bits/stl_deque.h
240 (_Deque_iterator<>::__ptr_to): Remove, use std::__ptr_rebind.
241 (_Deque_base(_Deque_base&&, const allocator_type&)): New.
242 (_Deque_base::_Deque_impl_data): New.
243 (_Deque_base::_Deque_impl): Inherit latter.
244 (_Deque_base::_Deque_impl::_M_swap_data): Move...
245 (_Deque_base::_Deque_impl_data::_M_swap_data): ... here.
246 (_Deque_base::_Deque_impl()): Add noexcept qualification.
247 (_Deque_base::_Deque_impl(_Deque_impl&&, _Tp_alloc_type&&)): New.
248 (_Deque_base::_Deque_impl::_M_get_Tp_allocator()): Remove static_cast.
249 (deque<>::deque()): Default.
250 (deque<>::deque(deque&&)): Default.
251 (deque<>::deque(deque&&, const allocator_type&, false_type)): New.
252 (deque<>::deque(deque&&, const allocator_type&, true_type)): New.
253 (deque<>::deque(deque&&, const allocator_type&)): Delegate to latters.
254 (deque<>::deque<_It>(_It, _It, const allocator_type&)): Use
256 (deque<>::assign<_It>(_It, _It)): Use _M_assign_aux.
257 (deque<>::resize(size_type, const value_type&)): Share a single
259 (deque<>::insert<_It>(const_iterator, _It, _It)): Use
261 [__cplusplus >= 201103L](_M_initialize_dispatch): Remove.
262 [__cplusplus >= 201103L](_M_assign_dispatch): Remove.
263 [__cplusplus >= 201103L](_M_insert_dispatch): Remove.
264 * testsuite/23_containers/deque/allocator/default_init.cc: New.
266 2019-05-17 Jonathan Wakely <jwakely@redhat.com>
269 * include/std/variant (holds_alternative, get, get_if): Improve
270 static assertion messages.
271 (bad_variant_access::bad_variant_access()): Change default message.
272 (__throw_bad_variant_access(bool)): New overload.
273 (get): Use new overload.
274 (visit, visit<R>): Improve exception message.
276 * testsuite/20_util/variant/compile.cc: Fix narrowing test for ILP32
277 targets. Add more cases from P0608R3.
278 * testsuite/20_util/variant/run.cc: Add more cases from P0608R3.
280 * include/bits/random.h (seed_seq::param): Fix non-reserved name.
281 * include/experimental/type_traits (is_detected_exact)
282 (is_detected_exact_v): Likewise.
283 * include/pstl/execution_defs.h (is_execution_policy)
284 (is_execution_policy_v, __enable_if_execution_policy): Likewise.
285 * include/pstl/execution_impl.h (__policy_traits): Likewise.
286 * testsuite/17_intro/names.cc: Check for more non-reserved names.
287 * testsuite/experimental/names.cc: New test.
290 * include/bits/hashtable.h (_Hashtable::~_Hashtable()): Remove static
291 assertions from the destructor.
292 * include/bits/hashtable_policy.h (_Hash_code_base::_M_hash_code):
293 Move static_assert for hash function to here.
294 (_Hash_table_base::_M_equals): Move static_assert for equality
296 * include/bits/stl_tree.h (_Rb_tree::_S_value(_Const_Link_type)):
298 (_Rb_tree::_S_key(_Const_Link_type)): Move assertions here. Access
299 the value directly instead of calling _S_value.
300 (_Rb_tree::_S_value(_Const_Base_ptr)): Remove.
301 (_Rb_tree::_S_key(_Const_Base_ptr)): Do downcast and forward to
302 _S_key(_Const_Link_type).
303 * testsuite/23_containers/set/85965.cc: Check construction,
304 destruction, assignment and size() do not trigger the assertions.
305 * testsuite/23_containers/unordered_set/85965.cc: Likewise.
306 * testsuite/23_containers/map/48101_neg.cc: Call find and adjust
308 * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
309 * testsuite/23_containers/multiset/48101_neg.cc: Likewise.
310 * testsuite/23_containers/set/48101_neg.cc: Likewise.
311 * testsuite/23_containers/unordered_map/48101_neg.cc: Likewise.
312 * testsuite/23_containers/unordered_multimap/48101_neg.cc: Likewise.
313 * testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise.
314 * testsuite/23_containers/unordered_set/48101_neg.cc: Likewise.
316 * include/bits/invoke.h [__cplusplus < 201703L] (__invoke_r<void>):
317 Use _GLIBCXX14_CONSTEXPR because void functions cannot be constexpr
320 * doc/xml/manual/status_cxx2020.xml: Update P0608R3, P0777R1, and
322 * doc/html/*: Regenerate.
323 * include/std/tuple (make_from_tuple): Use remove_reference_t instead
324 of decay_t (P0777R1).
326 2019-05-17 François Dumont <fdumont@gcc.gnu.org>
328 Move from state of allocators (LWG2593)
329 * include/bits/stl_deque.h
330 (_Deque_base(_Deque_base&&, false_type)): Remove.
331 (_Deque_base(_Deque_base&&, true_type)): Remove.
332 (_Deque_base(_Deque_base&&)): Adapt.
333 (_Deque_base::_M_move_impl()): Remove.
334 * testsuite/util/testsuite_allocator.h
335 (propagating_allocator(propagating_allocator&&)): Preserve move from
337 * testsuite/23_containers/deque/allocator/move_assign.cc (test02):
339 * testsuite/23_containers/forward_list/allocator/move_assign.cc (test02):
341 * testsuite/23_containers/list/allocator/move_assign.cc (test02): Adapt.
342 * testsuite/23_containers/map/allocator/move_assign.cc (test02): Adapt.
343 * testsuite/23_containers/multimap/allocator/move_assign.cc (test02):
345 * testsuite/23_containers/multiset/allocator/move_assign.cc (test02):
347 * testsuite/23_containers/set/allocator/move_assign.cc (test02): Adapt.
348 * testsuite/23_containers/unordered_map/allocator/move_assign.cc
350 * testsuite/23_containers/unordered_multimap/allocator/move_assign.cc
352 * testsuite/23_containers/unordered_multiset/allocator/move_assign.cc
354 * testsuite/23_containers/unordered_set/allocator/move_assign.cc
356 * testsuite/23_containers/vector/allocator/move_assign.cc (test02):
358 * testsuite/23_containers/vector/bool/allocator/move_assign.cc (test02):
360 * testsuite/21_strings/basic_string/allocator/char/move_assign.cc
362 * testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc
365 2019-05-16 Jonathan Wakely <jwakely@redhat.com>
367 * src/c++17/fs_ops.cc (absolute(const path&, error_code&))
368 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Remove bogus assertion.
370 * include/std/variant (__overload_set): Remove.
372 (_Build_FUN): New class template to define a single FUN overload,
373 with specializations to prevent unwanted conversions, as per P0608R3.
374 (_Build_FUNs): New class template to build an overload set of FUN.
375 (_FUN_type): New alias template to perform overload resolution.
376 (__accepted_type): Use integer_constant base for failure case. Use
377 _FUN_type for successful case.
378 (variant::__accepted_index): Use _Tp instead of _Tp&&.
379 (variant::variant(_Tp&&)): Likewise.
380 (variant::operator=(_Tp&&)): Likewise.
382 * include/std/variant (_Variant_storage<false, _Types...>::_M_reset):
383 Replace raw visitation with a runtime check for the valueless state
384 and a non-raw visitor.
385 (_Variant_storage<false, _Types...>::_M_reset_impl): Remove.
386 (variant::index()): Remove branch.
387 (variant::swap(variant&)): Use valueless_by_exception() instead of
388 comparing the index to variant_npos, and add likelihood attribute.
390 * include/bits/hashtable_policy.h (_Equal_helper): Remove.
391 (_Hashtable_base::_Equal_hash_code): Define new class template.
392 (_Hashtable_base::_M_equals): Use _Equal_hash_code instead of
395 * include/bits/hashtable_policy.h (_Hashtable_ebo_helper::_S_get):
396 Replace with _M_get non-static member function.
397 (_Hashtable_ebo_helper::_S_cget): Replace with _M_cget non-static
399 (_Hash_code_base, _Local_iterator_base, _Hashtable_base):
400 (_Hashtable_alloc): Adjust to use non-static members of EBO helper.
402 * include/bits/hashtable_policy.h (_Hash_code_base::_M_swap): Use
403 _S_get accessors for members in EBO helpers.
404 (_Hash_code_base::_M_extract(), _Hash_code_base::_M_ranged_hash())
405 (_Hash_code_base::_M_h1(), _Hash_code_base::_M_h2()): Remove non-const
407 (_Hashtable_base::_M_swap): Use _S_get accessors for members in EBO
409 (_Hashtable_base::_M_eq()): Remove non-const overload.
411 2019-05-15 Jonathan Wakely <jwakely@redhat.com>
413 * include/std/variant (visit, visit<R>): Qualify calls to __do_visit.
415 2019-05-14 Jonathan Wakely <jwakely@redhat.com>
417 * testsuite/util/testsuite_allocator.h (NullablePointer::operator bool):
420 2019-05-14 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
422 * config/os/solaris/solaris2.10: Move to ...
423 * config/os/solaris: ... this.
424 * configure.host (os_include_dir): Adapt.
425 (abi_baseline_pair): Remove Solaris 10 handling.
426 * config/abi/post/i386-solaris2.10: Remove.
427 * config/abi/post/sparc-solaris2.10: Remove.
428 * config/abi/post/i386-solaris2.11: Rename to ...
429 * config/abi/post/i386-solaris: ... this.
430 * config/abi/post/sparc-solaris2.11: Rename to ...
431 * config/abi/post/sparc-solaris: ... this.
433 * libsupc++/new_opa.cc [_GLIBCXX_HAVE_MEMALIGN] [__sun]: Remove
436 * testsuite/ext/enc_filebuf/char/13598.cc: Remove *-*-solaris2.10
439 2019-05-14 Jonathan Wakely <jwakely@redhat.com>
441 * include/std/variant (__visit_with_index): Remove typedef.
442 (__deduce_visit_result): New tag type.
443 (__raw_visit, __raw_idx_visit): New helper functions for "raw"
444 visitation of possibly-valueless variants, forwarding to __do_visit
445 with the relevant tag type.
446 (_Variant_storage<false, _Types...>::_M_reset_impl): Use __raw_visit
447 and make lambda return void.
448 (__variant_construct): Likewise.
449 (_Copy_assign_base::operator=, _Move_assign_base::operator=): Use
450 __raw_idx_visit and make lambda return void.
451 (_Multi_array::__untag_result): Add metafunction to check the function
452 pointer type for a tag type that dictates the kind of visitation.
453 (_Multi_array<_Ret(*)(_Visitor, _Variants...), __first, __rest...>):
454 Use decltype(auto) instead of tagged function pointer type.
455 (__gen_vtable_impl): Remove bool non-type parameter and unused
456 _Variant_tuple parameter.
457 (__gen_vtable_impl::__visit_invoke_impl): Remove.
458 (__gen_vtable_impl::__do_visit_invoke): Remove.
459 (__gen_vtable_impl::__do_visit_invoke_r): Remove.
460 (__gen_vtable_impl::__visit_invoke): Use if-constexpr and __invoke_r
461 for the visit<R> case, rather than dispatching to separate functions.
462 (_VARIANT_RELATION_FUNCTION_TEMPLATE): Use __raw_idx_visit and make
464 (variant::swap): Likewise.
465 (__do_visit): Replace two non-type template parameters with a single
466 type parameter, so that the caller must specify the visitor's return
467 type (or one of the tag types).
468 (visit): Deduce a return type from the visitor and use the
469 __deduce_visit_result tag to enforce that all overloads return the
471 (visit<R>): Call __do_visit<R> with explicit result type.
472 (__variant_hash_call_base_impl::operator()): Use __raw_visit and make
475 2019-05-14 Nina Dinka Ranns <dinka.ranns@gmail.com>
477 nonesuch is insufficiently useless (lwg2996)
478 * include/std/type_traits (struct __nonesuch): Added private base
479 class to make __nonesuch not an aggregate and removed deleted default
481 * include/bits/stl_pair.h (struct __nonesuch_no_braces): Removed.
482 (operator=(const pair&)): Use __nonesuch instead of
483 __nonesuch_no_braces.
484 (operator=(pair&&)): Likewise
485 * include/std/tuple (operator=(const tuple&)): Use __nonesuch instead
486 of __nonesuch_no_braces.
487 (operator=(tuple&&)): Likewise
488 * include/experimental/type_traits (struct nonesuch): Added private
489 base class to make nonesuch not an aggregate and removed deleted
491 * testsuite/20_util/nonesuch/nonesuch.cc: New.
492 * testsuite/experimental/type_traits/nonesuch.cc: New.
494 2019-05-14 Jonathan Wakely <jwakely@redhat.com>
496 * include/bits/std_function.h (_Simple_type_wrapper): Remove.
497 (_Function_handler): Remove partial specializations for void return
498 types and pointers to member.
499 (_Function_handler::_M_manager): Adapt to removal of
500 _Simple_type_wrapper.
501 (_Function_handler::_M_invoke): Use __invoke_r instead of __invoke.
502 * include/std/functional (_Bind_result::__enable_if_void)
503 (_Bind_result::__disable_if_void): Remove sfinae helpers.
504 (_Bind_result::__call): Use __invoke_r and remove overloads for void
506 * include/std/future (__future_base::_Task_state::_M_run)
507 (__future_base::_Task_state::_M_run_delayed): Use __invoke_r and
508 change return type of lambda expressions.
510 * include/bits/invoke.h (__invoke_r): Define new function implementing
511 the INVOKE<R> pseudo-function.
512 * testsuite/20_util/function_objects/invoke/1.cc: Add more tests.
513 * testsuite/20_util/function_objects/invoke/2.cc: New test.
515 * include/std/type_traits (__is_nt_convertible_helper): Define it
516 unconditionally, not only for C++20.
517 (__is_nothrow_convertible): Define internal trait for use in C++11.
518 (__is_nt_invocable_impl: Fix by using __is_nothrow_convertible.
519 (is_invocable_r_v, is_nothrow_invocable_r_v): Add missing parameter.
520 * testsuite/20_util/is_nothrow_convertible/value_ext.cc: New test.
521 * testsuite/20_util/is_nothrow_convertible/value.cc: Check with type
522 that has nothrow explicit conversion but potentially-throwing implicit
524 * testsuite/20_util/is_nothrow_invocable/value.cc: Likewise.
525 * testsuite/20_util/is_nothrow_invocable/value_ext.cc: Fix helper
526 function to only consider implicit conversions.
527 * testsuite/20_util/tuple/cons/noexcept_specs.cc: Add comment.
529 * include/std/iterator: Include <iosfwd> instead of <istream> and
532 * include/bits/stl_tree.h (_Rb_tree::erase(const Key*, const Key*)):
533 Remove unused, non-standard function.
535 * include/bits/regex.h (match_results::max_size()): Adjust return
536 value to account for prefix/suffix/unmatched subs.
537 (match_results::_M_resize(unsigned int)): Use _Base_type::assign to
538 reset the contained sub matches.
539 (match_results::_M_establish_failed_match(_Bi_iter)): Add new member
540 function to set result state following a failed match.
541 * include/bits/regex.tcc (__regex_algo_impl): Remove loop to set
542 sub_match states after _M_resize. Use _M_establish_failed_match.
545 * include/std/thread (thread::_State_impl, thread::_S_make_state):
546 Replace single _Callable parameter with variadic _Args pack, to
547 forward them directly to the tuple of decayed copies.
548 * testsuite/30_threads/thread/cons/69724.cc: New test.
550 2019-05-14 Nina Dinka Ranns <dinka.ranns@gmail.com>
552 Inconsistency wrt Allocators in basic_string assignment (LWG2579)
553 * include/bits/basic_string.h: (operator=(const basic_string&):
554 Move allocator decision to assign.
555 (assign(const basic_string&)): Move allocator decision here.
556 * testsuite/21_strings/basic_string/allocator/char/copy_assign.cc:
558 * testsuite/21_strings/basic_string/allocator/wchar_t/copy_assign.cc:
561 2019-05-14 Jonathan Wakely <jwakely@redhat.com>
563 * testsuite/util/testsuite_allocator.h (memory_resource)
564 (default_resource_mgr): Fix indentation.
566 * testsuite/20_util/allocator_traits/members/allocate_hint_nonpod.cc:
567 Use operator-> to access raw pointer member.
568 * testsuite/23_containers/vector/59829.cc: Likewise.
569 * testsuite/23_containers/vector/bool/80893.cc: Likewise.
570 * testsuite/libstdc++-prettyprinters/cxx11.cc: Use NullablePointer.
571 * testsuite/util/testsuite_allocator.h (NullablePointer): New utility
573 (PointerBase, PointerBase_void): Derive from NullablePointer and use
574 its constructors and equality operators. Change converting
575 constructors to use operator-> to access private member of the other
577 (PointerBase_void::operator->()): Add, for access to private member.
578 (operator-(PointerBase, PointerBase)): Change to hidden friend.
579 (operator==(PointerBase, PointerBase)): Remove.
580 (operator!=(PointerBase, PointerBase)): Remove.
582 * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__): Do
583 not assume field called _M_head_impl is the first tuple element.
584 * testsuite/libstdc++-prettyprinters/compat.cc: Make tuple
585 implementation more accurate.
586 * testsuite/libstdc++-prettyprinters/cxx11.cc: Check unique_ptr with
587 empty pointer type and non-empty deleter.
589 LWG 2899 - Make is_move_constructible correct for unique_ptr
590 * include/bits/unique_ptr.h (__uniq_ptr_impl): Add move constructor,
591 move assignment operator.
592 (__uniq_ptr_impl::release(), __uniq_ptr_impl::reset(pointer)): Add.
593 (__uniq_ptr_data): New class template with conditionally deleted
595 (unique_ptr, unique_ptr<T[], D>): Change type of data member from
596 __uniq_ptr_impl<T, D> to __uniq_ptr_data<T, D>. Define move
597 constructor and move assignment operator as defaulted.
598 (unique_ptr::release(), unique_ptr<T[], D>::release()): Forward to
599 __uniq_ptr_impl::release().
600 (unique_ptr::reset(pointer), unique_ptr<T[], D>::reset<U>(U)): Forward
601 to __uniq_ptr_impl::reset(pointer).
602 * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__):
603 Check for new __uniq_ptr_data type.
604 * testsuite/20_util/unique_ptr/dr2899.cc: New test.
606 2019-05-13 Jonathan Wakely <jwakely@redhat.com>
608 PR libstdc++/90454.cc path construction from void*
609 * include/bits/fs_path.h (path::_Path): Use remove_pointer so that
610 pointers to void are rejected as well as void.
611 * include/experimental/bits/fs_path.h (path::_Path): Likewise.
612 * testsuite/27_io/filesystem/path/construct/80762.cc: Also check
614 * testsuite/experimental/filesystem/path/construct/80762.cc: Likewise.
616 * doc/xml/manual/policy_data_structures.xml: Comment out stray
617 <remark> elements. Fix formatting of bibliography references.
619 2019-05-13 Edward Smith-Rowland <3dw4rd@verizon.net>
621 * doc/xml/manual/status_cxx2020.xml: Document P0811R3 status.
623 2019-05-13 Jonathan Wakely <jwakely@redhat.com>
625 Remove Profile Mode, deprecated since 7.1.0
626 * doc/Makefile.am: Remove XML file for profile mode docs.
627 * doc/Makefile.in: Regenerate.
628 * doc/xml/authors.xml: Remove authors of profile mode docs.
629 * doc/xml/manual/appendix_contributing.xml: Remove mention of profile
631 * doc/xml/manual/debug.xml: Likewise.
632 * doc/xml/manual/evolution.xml: Document removal of profile mode.
633 * doc/xml/manual/profile_mode.xml: Remove profile mode docs.
634 * doc/xml/manual/spine.xml: Remove profile mode author credit.
635 * doc/xml/manual/test.xml: Remove docs for dg-require-profile-mode
637 * doc/xml/manual/using.xml: Remove docs for profile mode headers and
639 * doc/html/*: Regenerate.
640 * include/Makefile.am: Remove profile mode headers.
641 * include/Makefile.in: Regenerate.
642 * include/bits/c++config (std::__profile): Remove namespace.
643 [_GLIBCXX_PROFILE]: Remove checks for macro.
644 * include/profile/array: Remove.
645 * include/profile/base.h: Remove.
646 * include/profile/bitset: Remove.
647 * include/profile/deque: Remove.
648 * include/profile/forward_list: Remove.
649 * include/profile/impl/profiler.h: Remove.
650 * include/profile/impl/profiler_algos.h: Remove.
651 * include/profile/impl/profiler_container_size.h: Remove.
652 * include/profile/impl/profiler_hash_func.h: Remove.
653 * include/profile/impl/profiler_hashtable_size.h: Remove.
654 * include/profile/impl/profiler_list_to_slist.h: Remove.
655 * include/profile/impl/profiler_list_to_vector.h: Remove.
656 * include/profile/impl/profiler_map_to_unordered_map.h: Remove.
657 * include/profile/impl/profiler_node.h: Remove.
658 * include/profile/impl/profiler_state.h: Remove.
659 * include/profile/impl/profiler_trace.h: Remove.
660 * include/profile/impl/profiler_vector_size.h: Remove.
661 * include/profile/impl/profiler_vector_to_list.h: Remove.
662 * include/profile/iterator_tracker.h: Remove.
663 * include/profile/list: Remove.
664 * include/profile/map: Remove.
665 * include/profile/map.h: Remove.
666 * include/profile/multimap.h: Remove.
667 * include/profile/multiset.h: Remove.
668 * include/profile/ordered_base.h: Remove.
669 * include/profile/set: Remove.
670 * include/profile/set.h: Remove.
671 * include/profile/unordered_base.h: Remove.
672 * include/profile/unordered_map: Remove.
673 * include/profile/unordered_set: Remove.
674 * include/profile/vector: Remove.
675 * scripts/run_doxygen: Do not process profile mode headers.
676 * testsuite/23_containers/array/element_access/60497.cc: Don't use
678 * testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc:
679 Remove dg-skip-if for profile mode.
680 * testsuite/23_containers/forward_list/capacity/1.cc: Remove
681 preprocessor check for profile mode.
682 * testsuite/23_containers/list/capacity/29134.cc: Likewise.
683 * testsuite/23_containers/map/modifiers/extract.cc: Remove dg-skip-if
685 * testsuite/23_containers/map/modifiers/insert_or_assign/1.cc:
687 * testsuite/23_containers/map/modifiers/try_emplace/1.cc: Likewise.
688 * testsuite/23_containers/multimap/modifiers/extract.cc: Likewise.
689 * testsuite/23_containers/multiset/modifiers/extract.cc: Likewise.
690 * testsuite/23_containers/set/modifiers/extract.cc: Likewise.
691 * testsuite/23_containers/unordered_map/modifiers/extract.cc:
693 * testsuite/23_containers/unordered_multimap/modifiers/extract.cc:
695 * testsuite/23_containers/unordered_multiset/modifiers/extract.cc:
697 * testsuite/23_containers/unordered_set/modifiers/extract.cc:
699 * testsuite/23_containers/vector/bool/capacity/29134.cc: Remove
700 preprocessor check for profile mode.
701 * testsuite/23_containers/vector/bool/modifiers/insert/31370.cc:
703 * testsuite/23_containers/vector/modifiers/insert_vs_emplace.cc:
704 Remove dg-skip-if for profile mode.
705 * testsuite/25_algorithms/binary_search/partitioned.cc: Likewise.
706 * testsuite/25_algorithms/equal_range/partitioned.cc: Likewise.
707 * testsuite/25_algorithms/lexicographical_compare/71545.cc: Likewise.
708 * testsuite/25_algorithms/lower_bound/partitioned.cc: Likewise.
709 * testsuite/25_algorithms/upper_bound/partitioned.cc: Likewise.
710 * testsuite/Makefile.am: Remove profile_flags variable and
711 * testsuite/Makefile.am: Remove profile_flags variable and
712 check-profile target.
713 * testsuite/Makefile.in: Regenerate.
714 * testsuite/ext/profile/all.cc: Remove.
715 * testsuite/ext/profile/mutex_extensions_neg.cc: Remove.
716 * testsuite/ext/profile/profiler_algos.cc: Remove.
717 * testsuite/ext/profile/replace_new.cc: Remove.
718 * testsuite/ext/throw_allocator/deallocate_global.cc: Remove
719 preprocessor check for profile mode.
720 * testsuite/ext/throw_allocator/deallocate_local.cc: Likewise.
721 * testsuite/lib/libstdc++.exp (check_v3_target_profile_mode): Remove.
722 (check_v3_target_normal_mode): Do not check for profile mode macro.
723 * testsuite/libstdc++-prettyprinters/80276.cc: Remove dg-skip-if for
725 * testsuite/libstdc++-prettyprinters/compat.cc: Likewise.
726 * testsuite/libstdc++-prettyprinters/cxx11.cc: Likewise.
727 * testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
728 * testsuite/libstdc++-prettyprinters/debug.cc: Likewise.
729 * testsuite/libstdc++-prettyprinters/debug_cxx11.cc: Likewise.
730 * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
731 * testsuite/libstdc++-prettyprinters/simple.cc: Likewise.
732 * testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
733 * testsuite/libstdc++-prettyprinters/whatis.cc: Likewise.
734 * testsuite/libstdc++-prettyprinters/whatis2.cc: Likewise.
736 Remove array_allocator extension, deprecated since 4.9.0
737 * doc/xml/manual/allocator.xml: Remove documentation for
739 * doc/xml/manual/evolution.xml: Document array_allocator removal.
740 * doc/xml/manual/using.xml: Remove header from documentation.
741 * include/Makefile.am: Remove <ext/array_allocator.h> header.
742 * include/Makefile.in: Regenerate.
743 * include/ext/array_allocator.h: Remove.
744 * include/precompiled/extc++.h: Do not include removed header.
745 * testsuite/ext/array_allocator/1.cc: Remove.
746 * testsuite/ext/array_allocator/2.cc: Remove.
747 * testsuite/ext/array_allocator/26875.cc: Remove.
748 * testsuite/ext/array_allocator/3.cc: Remove.
749 * testsuite/ext/array_allocator/check_deallocate_null.cc: Remove.
750 * testsuite/ext/array_allocator/check_delete.cc: Remove.
751 * testsuite/ext/array_allocator/check_new.cc: Remove.
752 * testsuite/ext/array_allocator/variadic_construct.cc: Remove.
753 * testsuite/ext/headers.cc: Do not include removed header.
755 2019-05-11 François Dumont <fdumont@gcc.gnu.org>
757 * include/bits/stl_bvector.h
758 (operator==(const _Bit_iterator_base&, const _Bit_iterator_base&)):
760 (operator<(const _Bit_iterator_base&, const _Bit_iterator_base&)):
762 (operator!=(const _Bit_iterator_base&, const _Bit_iterator_base&)):
764 (operator>(const _Bit_iterator_base&, const _Bit_iterator_base&)):
766 (operator<=(const _Bit_iterator_base&, const _Bit_iterator_base&)):
768 (operator>=(const _Bit_iterator_base&, const _Bit_iterator_base&)):
770 (operator-(const _Bit_iterator_base&, const _Bit_iterator_base&)):
772 (_Bit_iterator::operator+(difference_type)): Likewise and allow NRVO
774 (_Bit_iterator::operator-(difference_type)): Likewise.
775 (operator+(ptrdiff_t, const _Bit_iterator&)): Make hidden friend.
776 (_Bit_const_iterator::operator+(difference_type)): Likewise and allow
778 (_Bit_const_iterator::operator-(difference_type)): Likewise.
779 (operator+(ptrdiff_t, const _Bit_const_iterator&)): Make hidden friend.
781 2019-05-10 Jonathan Wakely <jwakely@redhat.com>
784 * testsuite/util/thread/all.h: Do not use remove_pointer for
785 std::thread::native_handle_type.
788 * include/std/variant (_Variant_storage<false, Types...>::_M_storage())
789 (_Variant_storage<true, Types...>::_M_reset()))
790 (_Variant_storage<true, Types...>::_M_storage())): Add noexcept.
791 (__get_storage): Likewise.
792 (variant): Add noexcept to friend declarations for __get and
796 * include/bits/unique_ptr.h (default_delete, default_delete<T[]>):
797 Use _Require for constraints.
798 (operator>(nullptr_t, const unique_ptr<T,D>&)): Implement exactly as
800 (__uniq_ptr_hash): New base class with conditionally-disabled call
802 (hash<unique_ptr<T,D>>): Derive from __uniq_ptr_hash.
803 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
804 * testsuite/20_util/unique_ptr/hash/90388.cc: New test.
806 * include/bits/shared_ptr.h: Improve docs.
807 * include/bits/shared_ptr_base.h: Likewise.
808 * include/bits/stl_uninitialized.h: Likewise.
809 * include/bits/unique_ptr.h: Likewise.
810 * libsupc++/new: Likewise.
812 2019-05-09 François Dumont <fdumont@gcc.gnu.org>
814 * include/bits/stl_deque.h
815 (operator==(const _Deque_iterator<>&, const _Deque_iterator<>&)):
817 (operator!=(const _Deque_iterator<>&, const _Deque_iterator<>&)):
819 (operator<(const _Deque_iterator<>&, const _Deque_iterator<>&)):
821 (operator<=(const _Deque_iterator<>&, const _Deque_iterator<>&)):
823 (operator>(const _Deque_iterator<>&, const _Deque_iterator<>&)):
825 (operator>=(const _Deque_iterator<>&, const _Deque_iterator<>&)):
827 (_Deque_iterator<>::operator+(difference_type)): Likewise and allow NRVO
829 (_Deque_iterator<>::operator-(difference_type)): Likewise.
831 2019-05-08 François Dumont <fdumont@gcc.gnu.org>
834 * testsuite/23_containers/unordered_multiset/insert/24061-multiset.cc
835 (test01): Reserve for number of insertions to avoid rehash during test.
836 * testsuite/23_containers/unordered_multimap/insert/24061-multimap.cc
838 * testsuite/23_containers/unordered_multimap/insert/24061-multimap.cc
843 2019-05-08 Jonathan Wakely <jwakely@redhat.com>
845 * include/experimental/bits/fs_path.h: Improve docs.
846 * include/experimental/bits/net.h: Fix wrong header name in comment.
847 Do not document implementation details.
848 * include/experimental/netfwd: Fix doxygen grouping.
850 2019-05-07 Jonathan Wakely <jwakely@redhat.com>
852 * include/bits/stl_pair.h: Improve docs.
853 * include/std/tuple: Likewise.
855 * doc/doxygen/doxygroups.cc (std::literals): Add documentation for
857 * include/std/chrono: Improve docs.
858 * include/std/ratio: Do not document implementation details.
859 * testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Adjust dg-error
861 * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Likewise.
864 * doc/xml/manual/intro.xml: Document DR 2408 and 2465 changes.
865 * include/std/chrono (__duration_common_type_wrapper): Replace with ...
866 (__duration_common_type): New helper.
867 (common_type<chrono::duration<R1, P2>, chrono::duration<R2, P2>>): Use
868 __duration_common_type.
869 (__timepoint_common_type_wrapper): Replace with ...
870 (__timepoint_common_type): New helper.
871 (common_type<chrono::time_point<C, D2>, chrono::time_point<C, D2>>):
872 Use __time_point_common_type.
873 * include/std/type_traits (common_type<>): Define, as per LWG 2408.
874 (__common_type_impl): If either argument is transformed by decay,
875 use the common_type of the decayed types.
876 (__common_type_impl<_Tp, _Up, _Tp, _Up>): If the types are already
877 decayed, use __do_common_type_impl to get the common_type.
878 (common_type<_Tp>): Use common_type<_Tp, _Tp>.
879 (__do_member_type_wrapper, __member_type_wrapper)
880 (__expanded_common_type_wrapper): Remove.
881 (__common_type_pack, __common_type_fold): New helpers.
882 (common_type<_Tp, _Up, _Vp...>): Use new helpers instead of
883 __member_type_wrapper and __expanded_common_type_wrapper.
884 * testsuite/20_util/common_type/requirements/explicit_instantiation.cc:
885 Test zero-length template argument list.
886 * testsuite/20_util/common_type/requirements/sfinae_friendly_1.cc:
887 Test single argument cases and argument types that should decay.
888 * testsuite/20_util/common_type/requirements/sfinae_friendly_2.cc:
889 Adjust expected error.
890 * testsuite/20_util/duration/literals/range_neg.cc: Use zero for
892 * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
893 * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
894 * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
896 * doc/xml/manual/intro.xml: Fix DR 2537 and DR 2566 confusion.
898 2019-05-01 Nina Dinka Ranns <dinka.ranns@gmail.com>
900 Make allocator propagation more consistent for
901 operator+(basic_string) (P1165R1)
902 * include/bits/basic_string.h
903 (operator+(basic_string&&, basic_string&&): Changed resulting
904 allocator to always be the one from the first parameter.
905 * include/bits/basic_string.tcc
906 (operator+(const _CharT*, const basic_string&)): Changed
907 resulting allocator to be SOCCC on the second parameter's allocator.
908 (operator+(_CharT, const basic_string&)): Likewise.
909 * testsuite/21_strings/basic_string/allocator/char/operator_plus.cc:
911 * testsuite/21_strings/basic_string/allocator/wchar_t/operator_plus.cc:
914 2019-05-07 Jonathan Wakely <jwakely@redhat.com>
916 * include/bits/regex.h: Improve docs.
917 * include/bits/regex.tcc: Do not document implementation details.
919 * testsuite/19_diagnostics/error_code/hash.cc: New test.
921 2019-05-06 François Dumont <fdumont@gcc.gnu.org>
923 * python/libstdcxx/v6/printers.py (add_one_template_type_printer):
924 Add type printer for container types in std::__debug namespace.
925 * testsuite/lib/gdb-test.exp (whatis-regexp-test): New.
926 (gdb-tests): Use distinct parameters for the type of test and use of
928 (gdb-test): Check for regex test even if 'whatis' test.
929 * testsuite/libstdc++-prettyprinters/80276.cc: Adapt for _GLIBCXX_DEBUG
931 * testsuite/libstdc++-prettyprinters/cxx11.cc: Likewise.
932 * testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
933 * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
934 * testsuite/libstdc++-prettyprinters/simple.cc: Likewise.
935 * testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
936 * testsuite/libstdc++-prettyprinters/whatis.cc: Likewise.
937 * testsuite/libstdc++-prettyprinters/whatis2.cc: Likewise.
939 2019-05-04 Jonathan Wakely <jwakely@redhat.com>
941 * include/std/system_error (error_category): Fix comment.
944 * src/c++17/fs_ops.cc (absolute(const path&)): Report an error if the
945 argument is an empty path.
946 (absolute(const path&, error_code&)): Use invalid_argument as error
947 code instead of no_such_file_or_directory.
948 * testsuite/27_io/filesystem/operations/absolute.cc: Check handling
949 of non-existent paths and empty paths with both overloads of absolute.
951 * include/std/system_error (error_category, error_code)
952 (error_condition): Improve docs.
953 * libsupc++/exception: Add missing @addtogroup Doxygen command.
954 * libsupc++/exception_ptr.h (exception_ptr): Link equality operators
955 to class documentation. Suppress documentation for implementation
957 * libsupc++/nested_exception.h (throw_with_nested, rethrow_if_nested):
958 Suppress documentation for implementation details.
960 * include/std/system_error (error_code): Remove friend declaration
961 for hash<error_code>.
962 (hash<error_code>::operator()): Use public member functions to access
964 (hash<error_condition>::operator()): Use address of category, not
965 its object representation.
966 * src/c++11/compatibility-c++0x.cc (hash<error_code>::operator()):
967 Use public member functions to access value and category.
968 * testsuite/19_diagnostics/error_condition/hash.cc: New test.
970 2019-05-04 François Dumont <fdumont@gcc.gnu.org>
972 * include/bits/hashtable.h (_Hashtable<>::rehash): Review comment.
973 * include/bits/hashtable_policy.h
974 (_Prime_rehash_policy::_M_bkt_for_elements): Use __builtin_ceill.
975 (_Power2_rehash_policy::_M_bkt_for_elements): Likewise.
976 (_Power2_rehash_policy::_M_next_bkt): Enforce returning a result not
977 smaller than input value rather than always greater. Preserve
978 _M_next_resize if called with 0 input. Use __builtin_floorl.
979 (_Power2_rehash_policy::_M_need_rehash): Rehash only if number of
980 elements + number of insertions is greater than _M_next_resize. Start
981 with 11 buckets if not told otherwise. Use __builtin_floorl.
982 (_Rehash_base<>::reserve): Use rehash policy _M_bkt_for_elements.
983 * src/c++11/hashtable_c++0x.cc (_Prime_rehash_policy::_M_next_bkt):
984 Preserve _M_next_resize if called with 0 input. Use __builtin_floorl.
985 (_Prime_rehash_policy::_M_need_rehash): Start with 11 buckets if not
986 told otherwise. Use __builtin_floorl.
987 * testsuite/23_containers/unordered_set/hash_policy/71181.cc: Adapt test
988 to also validate _Power2_rehash_policy.
989 * testsuite/23_containers/unordered_set/hash_policy/power2_rehash.cc:
992 2019-05-03 Jonathan Wakely <jwakely@redhat.com>
995 * testsuite/26_numerics/complex/proj.cc: Don't assume <cmath> defines
999 * include/ext/numeric_traits.h (__glibcxx_min): Avoid integer
1000 overflow warning with -Wpedantic -Wsystem-headers.
1002 2019-05-02 Jonathan Wakely <jwakely@redhat.com>
1005 * include/bits/c++config (_GLIBCXX_NOEXCEPT_IF): Use variadic macro.
1006 * include/bits/move.h (swap): Remove extra parentheses.
1008 * include/experimental/bits/lfts_config.h: Improve doc markup.
1009 * include/experimental/optional: Improve docs.
1010 (_Has_addressof_mem, _Has_addressof_free, _Has_addressof)
1011 (__constexpr_addressof): Remove.
1012 (optional::operator->()): Use std::__addressof().
1013 * include/std/optional (optional::operator->()): Adjust whitespace.
1014 * testsuite/experimental/optional/constexpr/observers/2.cc: Check
1015 that operator-> is still constexpr with overloaded operator&. Change
1016 to compile-only test.
1017 * testsuite/experimental/optional/constexpr/observers/3.cc: Change to
1020 * include/bits/shared_ptr.h: Improve docs.
1021 * include/bits/shared_ptr_atomic.h: Likewise.
1022 * include/bits/unique_ptr.h: Likewise. Adjust whitespace.
1024 * include/bits/basic_string.h: Fix iterator/index confusion in
1026 * include/bits/range_access.h: Fix Doxygen warnings.
1027 * include/bits/refwrap.h: Do not document implementation details.
1028 (ref, cref): Group docs with reference_wrapper.
1029 * include/std/fstream: Fix Doxygen markup.
1030 * libsupc++/initializer_list (begin, end): Group docs with
1033 * doc/doxygen/user.cfg.in: Set MARKDOWN_SUPPORT=YES.
1035 * include/bits/unique_lock.h: Fix/improve doxygen markup.
1036 * include/std/mutex: Likewise.
1037 * include/std/shared_mutex: Likewise.
1039 * include/bits/fs_dir.h: Fix/improve doxygen markup.
1040 * include/bits/fs_fwd.h: Likewise.
1041 * include/bits/fs_ops.h: Likewise.
1042 * include/bits/fs_path.h: Likewise.
1043 * include/std/filesystem: Likewise.
1045 * include/experimental/bits/net.h: Fix/improve doxygen markup.
1046 * include/experimental/buffer: Likewise.
1047 * include/experimental/executor: Likewise.
1048 * include/experimental/internet: Likewise.
1049 * include/experimental/io_context: Likewise.
1050 * include/experimental/net: Likewise.
1051 * include/experimental/netfwd: Likewise.
1052 * include/experimental/socket: Likewise.
1053 * include/experimental/timer: Likewise.
1055 * doc/doxygen/doxygroups.cc: Move description of experimental group
1057 * include/experimental/algorithm: Add to libfund-ts doc group.
1058 * include/experimental/any: Likewise. Do not document implementation
1060 * include/experimental/array: Add to libfund-ts doc group.
1061 * include/experimental/bits/lfts_config.h: Define libfund-ts doc group
1062 for Library Fundamentals.
1063 * include/experimental/chrono: Add to libfund-ts doc group.
1064 * include/experimental/deque: Likewise.
1065 * include/experimental/forward_list: Likewise.
1066 * include/experimental/functional: Likewise.
1067 * include/experimental/iterator: Likewise.
1068 * include/experimental/list: Likewise.
1069 * include/experimental/map: Likewise.
1070 * include/experimental/memory: Likewise.
1071 * include/experimental/memory_resource: Likewise. Improve docs.
1073 * include/experimental/numeric: Add to libfund-ts doc group.
1074 * include/experimental/optional: Likewise.
1075 * include/experimental/propagate_const: Likewise.
1076 * include/experimental/random: Likewise.
1077 * include/experimental/ratio: Likewise.
1078 * include/experimental/regex: Likewise.
1079 * include/experimental/set: Likewise.
1080 * include/experimental/source_location: Likewise.
1081 * include/experimental/string: Likewise.
1082 * include/experimental/string_view: Likewise.
1083 * include/experimental/system_error: Likewise.
1084 * include/experimental/tuple: Likewise.
1085 * include/experimental/type_traits: Likewise.
1086 * include/experimental/unordered_map: Likewise.
1087 * include/experimental/unordered_set: Likewise.
1088 * include/experimental/utility: Likewise.
1089 * include/experimental/vector: Likewise.
1090 * testsuite/experimental/any/misc/any_cast_neg.cc: Adjust dg-error.
1091 * testsuite/experimental/array/neg.cc: Adjust dg-error.
1092 * testsuite/experimental/propagate_const/assignment/move_neg.cc:
1094 * testsuite/experimental/propagate_const/cons/move_neg.cc: Likewise.
1095 * testsuite/experimental/propagate_const/requirements2.cc: Likewise.
1096 * testsuite/experimental/propagate_const/requirements3.cc: Likewise.
1097 * testsuite/experimental/propagate_const/requirements4.cc: Likewise.
1098 * testsuite/experimental/propagate_const/requirements5.cc: Likewise.
1100 * include/experimental/bits/fs_dir.h: Fix Doxygen markup.
1101 * include/experimental/bits/fs_fwd.h: Improve docs.
1102 * include/experimental/bits/fs_ops.h: fix Doxygen markup.
1103 * include/experimental/bits/fs_path.h: Likewise.
1104 (path, filesystem_error, u8path): Improve docs.
1105 * include/experimental/filesystem: Link to docs for TS.
1107 * config/allocator/new_allocator_base.h (__allocator_base): Add
1108 workaround for Doxygen bug #6945.
1109 * include/std/memory: Improve docs. Define group for pointer safety.
1110 * include/std/scoped_allocator: Improve docs. Use "undocumented"
1111 conditional to suppress documentation for implementation details.
1113 * include/bits/specfun.h: Improve docs.
1114 * include/tr1/cmath: Likewise. Fix nesting of preprocessor conditions
1117 * doc/doxygen/doxygroups.cc (std::tr2, std::__gnu_cxx): Improve docs.
1118 (std::experimental): Add docs.
1119 * doc/doxygen/user.cfg.in (PREDEFINED): Expand macros for __cxx11
1120 namespace to nothing when generating docs.
1121 * include/bits/regex_constants.h (std::regex_constants): Improve docs.
1122 * include/std/chrono (std::chrono): Likewise.
1123 * include/std/functional (std::placeholders): Likewise.
1124 * include/std/thread (std::this_thread): Likewise.
1126 * include/parallel/settings.h: Fix Doxygen markup.
1128 * include/ext/pb_ds/detail/bin_search_tree_/*_imps.hpp: Do not define
1129 anything unless PB_DS_CLASS_C_DEC is defined.
1130 * include/ext/pb_ds/detail/binary_heap_/*_imps.hpp: Likewise.
1131 * include/ext/pb_ds/detail/binomial_heap_/*_imps.hpp: Likewise.
1132 * include/ext/pb_ds/detail/binomial_heap_base_/*_imps.hpp: Likewise.
1133 * include/ext/pb_ds/detail/cc_hash_table_map_/*_imps.hpp: Likewise.
1134 * include/ext/pb_ds/detail/gp_hash_table_map_/*_imps.hpp: Likewise.
1135 * include/ext/pb_ds/detail/hash_fn/*_imp.hpp: Likewise.
1136 * include/ext/pb_ds/detail/left_child_next_sibling_heap_/*_imps.hpp:
1138 * include/ext/pb_ds/detail/list_update_map_/*_imps.hpp: Likewise.
1139 * include/ext/pb_ds/detail/ov_tree_map_/*_imps.hpp: Likewise.
1140 * include/ext/pb_ds/detail/pairing_heap_/*_imps.hpp: Likewise.
1141 * include/ext/pb_ds/detail/pat_trie_/*_imps.hpp: Likewise.
1142 * include/ext/pb_ds/detail/rb_tree_map_/*_imps.hpp: Likewise.
1143 * include/ext/pb_ds/detail/rc_binomial_heap_/*_imps.hpp: Likewise.
1144 * include/ext/pb_ds/detail/resize_policy*_imp.hpp: Likewise.
1145 * include/ext/pb_ds/detail/splay_tree_/*_imps.hpp: Likewise.
1146 * include/ext/pb_ds/detail/thin_heap_/*_imps.hpp: Likewise.
1147 * include/ext/pb_ds/detail/trie_policy*_imp.hpp: Likewise.
1148 * include/ext/pb_ds/detail/unordered_iterator/const_iterator.hpp:
1150 * include/ext/pb_ds/detail/unordered_iterator/iterator.hpp: Likewise.
1151 * include/ext/pb_ds/detail/unordered_iterator/point_const_iterator.hpp:
1153 * include/ext/pb_ds/detail/unordered_iterator/point_iterator.hpp:
1156 * doc/doxygen/user.cfg.in: Regenerate with Doxygen 1.8.14 and set
1157 GROUP_NESTED_COMPOUNDS=YES and SORT_BY_SCOPE_NAME=NO. Add various
1158 _GLIBCXX_xxx macros and __attribute__(X) to PREDEFINED macros that
1161 2019-05-01 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
1163 * config/abi/post/i386-solaris2.10/baseline_symbols.txt: Regenerate.
1164 * config/abi/post/i386-solaris2.10/amd64/baseline_symbols.txt: Likewise.
1165 * config/abi/post/i386-solaris2.11/baseline_symbols.txt: Likewise.
1166 * config/abi/post/i386-solaris2.11/amd64/baseline_symbols.txt: Likewise.
1167 * config/abi/post/sparc-solaris2.10/baseline_symbols.txt: Likewise.
1168 * config/abi/post/sparc-solaris2.10/sparcv9/baseline_symbols.txt:
1170 * config/abi/post/sparc-solaris2.11/baseline_symbols.txt: Likewise.
1171 * config/abi/post/sparc-solaris2.11/sparcv9/baseline_symbols.txt:
1174 2019-05-01 Jonathan Wakely <jwakely@redhat.com>
1177 * include/std/complex (__complex_proj): Return parameter unchanged.
1178 [_GLIBCXX_USE_C99_COMPLEX] (__complex_proj): Change overloads for
1179 floating-point types to take std::complex arguments.
1180 [_GLIBCXX_USE_C99_MATH_TR1] (__complex_proj): Add overloads for
1181 floating-point types.
1182 * testsuite/26_numerics/complex/proj.cc: New test.
1184 2019-04-30 Jakub Jelinek <jakub@redhat.com>
1186 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Change _Lock_policyE2 exports
1187 to _Lock_policyE[012].
1188 * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
1190 2019-04-30 Jonathan Wakely <jwakely@redhat.com>
1192 * testsuite/27_io/filesystem/path/decompose/root_path.cc: Remove
1193 macros accidentally left in.
1194 * testsuite/27_io/filesystem/path/native/string-char8_t.cc: Remove
1195 unnecessary -lstdc++fs option. Fix test for mingw.
1196 * testsuite/experimental/filesystem/path/native/string-char8_t.cc:
1199 2019-04-30 Jakub Jelinek <jakub@redhat.com>
1201 * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
1203 2019-04-29 Jonathan Wakely <jwakely@redhat.com>
1205 * include/bits/stl_algo.h (generate_n): Adjust doxygen comment.
1207 * include/bits/move.h (swap(T&, T&), swap(T (&)[N], T (&)[N])): Use
1208 _GLIBCXX_NOEXCEPT_IF to simplify declarations.
1211 * src/c++11/shared_ptr.cc (get_mutex): Align pool mutexes to 64 bytes.
1213 * include/bits/stl_bvector.h (vector<bool>::empty()): Add nodiscard
1216 * include/bits/stl_iterator_base_types.h (_Iter_base): Remove unused
1217 class template and partial specialization.
1220 * include/bits/stl_algo.h (generate_n): Convert _Size parameter to
1222 * include/bits/stl_algobase.h (__size_to_integer): New overloaded
1223 functions to convert a value to an integral type.
1224 (__fill_n_a, __fill_n_a): Assert that __n is already an integral type.
1225 (fill_n): Convert _Size parameter to an integral type.
1226 * testsuite/25_algorithms/fill_n/87982.cc: New test.
1227 * testsuite/25_algorithms/fill_n/87982_neg.cc: New test.
1228 * testsuite/25_algorithms/fill_n/dr426.cc: New test.
1229 * testsuite/25_algorithms/generate_n/87982.cc: New test.
1230 * testsuite/25_algorithms/generate_n/87982_neg.cc: New test.
1231 * testsuite/25_algorithms/generate_n/dr426.cc: New test.
1233 2019-04-28 Nina Dinka Ranns <dinka.ranns@gmail.com>
1235 Adding noexcept-specification on tuple constructors (LWG 2899)
1236 * libstdc++-v3/include/std/tuple:
1237 (tuple()): Add noexcept-specification.
1238 (tuple(const _Elements&...)): Likewise
1239 (tuple(_UElements&&...)): Likewise
1240 (tuple(const tuple<_UElements...>&)): Likewise
1241 (tuple(tuple<_UElements...>&&)): Likewise
1242 (tuple(const _T1&, const _T2&)): Likewise
1243 (tuple(_U1&&, _U2&&)): Likewise
1244 (tuple(const tuple<_U1, _U2>&): Likewise
1245 (tuple(tuple<_U1, _U2>&&): Likewise
1246 (tuple(const pair<_U1, _U2>&): Likewise
1247 (tuple(pair<_U1, _U2>&&): Likewise
1248 * libstdc++-v3/testsuite/20_util/tuple/cons/noexcept_specs.cc: New
1250 2019-04-27 Marc Glisse <marc.glisse@inria.fr>
1253 * include/bits/stl_uninitialized.h (__relocate_object_a): Mark the
1254 arguments with __restrict.
1256 2019-04-26 H.J. Lu <hongjiu.lu@intel.com>
1258 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
1260 2019-04-26 Jonathan Wakely <jwakely@redhat.com>
1262 * include/experimental/bits/fs_path.h
1263 (path::_S_convert_loc<_InputIterator>): Create const std::string to
1264 avoid redundant call to _S_convert_loc with non-const pointers.
1266 * testsuite/20_util/variant/run.cc: Use a new Hashable type to test
1267 hashing, because pmr::string depends on _GLIBCXX_USE_CXX11_ABI==1.
1268 * testsuite/21_strings/basic_string/hash/hash.cc
1269 [!_GLIBCXX_USE_CXX11_ABI]: Don't test pmr strings.
1270 * testsuite/21_strings/basic_string/hash/hash_char8_t.cc
1271 [!_GLIBCXX_USE_CXX11_ABI]: Likewise.
1273 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace wildcard that matches
1274 wstring::_M_replace_dispatch with more specific patterns.
1275 * include/bits/fs_path.h (path::_S_convert_loc<_InputIterator>):
1276 Create const std::string to avoid redundant call to _S_convert_loc
1277 with non-const pointers.
1278 * include/bits/locale_conv.h (__do_str_codecvt): Use if-constexpr to
1279 avoid unnecessary basic_string::assign instantiations.
1281 * include/std/memory (__uses_alloc_args): Add string-literal to
1282 static_assert, to match the one in __uses_alloc.
1283 [__cpp_concepts] (_Std_pair): Use C++2a syntax for concept.
1284 * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc: Check
1285 for recursive uses-allocator construction of nested pairs.
1286 * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc:: Add
1289 2019-04-26 Jakub Jelinek <jakub@redhat.com>
1291 * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Update.
1292 * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update.
1293 * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update.
1294 * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: Update.
1296 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1297 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
1298 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
1299 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
1300 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1301 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1302 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1304 2019-04-25 Jonathan Wakely <jwakely@redhat.com>
1307 * doc/xml/manual/status_cxx2020.xml: Amend P0591R4 status.
1308 * include/std/scoped_allocator [__cplusplus > 201703L]
1309 (scoped_allocator_adaptor::construct): Define in terms of
1310 uses_allocator_construction_args, as per P0591R4.
1311 * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc: New test.
1312 * testsuite/util/testsuite_allocator.h: Remove name of unused
1315 2019-04-24 Jonathan Wakely <jwakely@redhat.com>
1317 * doc/xml/manual/status_cxx2017.xml: Document P0024R2 status.
1318 * doc/html/*: Regenerate.
1320 * include/bits/fs_path.h (operator<, operator<=, operator>)
1321 (operator>=, operator==, operator!=): Make hidden friends, as per
1323 * testsuite/27_io/filesystem/path/native/string-char8_t.cc: Fix
1324 string type in test.
1325 * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
1327 * include/std/any (any::any(ValueType&&)): Use __and_v.
1328 * include/std/numeric (midpoint(T, T, T), midpoint(T*, T*, T*)):
1331 * include/std/tuple (apply): Use remove_reference_t instead of decay_t
1333 * include/std/type_traits (__result_of_memfun): Use remove_reference
1334 instead of __remove_cvref_t and remove redundant is_same check.
1335 (__inv_unwrap): Use __remove_cvref_t instead of decay_t.
1337 * include/experimental/string_view (basic_string_view::pointer)
1338 (basic_string_view::reference): Fix to refer to non-const value_type.
1339 * include/bits/basic_string.h (basic_string): Use __sv_check and
1340 __sv_limit instead of basic_string_view::_M_check and
1341 basic_string_view::_M_limit.
1342 * include/std/string_view (__sv_check, __sv_limit): New
1343 helper functions to replace basic_string_view::_M_check and
1344 basic_string_view::_M_limit.
1345 (basic_string_view): Add static assertions to enforce ill-formed
1346 requirement for traits_type::char_type from P1148R0, and to enforce
1347 required properties of char-like types.
1348 (basic_string_view::pointer, basic_string_view::reference): Fix to
1349 refer to non-const value_type.
1350 (basic_string_view::operator[], basic_string_view::at)
1351 (basic_string_view::front, basic_string_view::back)
1352 (basic_string_view::data): Use const_reference and const_pointer
1353 typedefs for return types.
1354 (basic_string_view::_M_check, basic_string_view::_M_limit): Remove.
1355 (hash<wstring_view>): Fix argument_type typedef.
1356 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
1357 char/1.cc: Fix expected return type of basic_string_view::data().
1358 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
1359 wchar_t/1.cc: Likewise.
1360 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
1361 char/1.cc: Likewise.
1362 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
1363 wchar_t/1.cc: Likewise.
1364 * testsuite/21_strings/basic_string_view/requirements/traits_neg.cc:
1366 * testsuite/21_strings/basic_string_view/requirements/typedefs.cc:
1367 Check reference and pointer typedefs.
1368 * testsuite/experimental/string_view/requirements/typedefs.cc:
1370 * testsuite/experimental/string_view/modifiers/remove_prefix/char/1.cc:
1371 Fix expected return type of basic_string_view::data().
1372 * testsuite/experimental/string_view/modifiers/remove_prefix/wchar_t/
1374 * testsuite/experimental/string_view/modifiers/remove_suffix/char/1.cc:
1376 * testsuite/experimental/string_view/modifiers/remove_suffix/wchar_t/
1380 * include/std/any (__any_caster): Use remove_cv_t instead of decay_t.
1381 Avoid a runtime check for types that can never be stored in std::any.
1382 * testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with
1385 PR libstdc++/90220 (partial)
1386 * include/std/any (any_cast<T>(any*), any_cast<T>(const any*)): Do
1387 not attempt ill-formed static_cast to pointers to non-object types.
1388 * testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with
1391 * testsuite/20_util/variant/run.cc: Catch exception by reference to
1392 prevent -Wcatch-value warning.
1394 * include/std/variant (__variant_construct): Use template parameter
1395 type instead of equivalent decltype-specifier.
1396 (_Move_ctor_base<false, Types...>::_Move_ctor_base(_Move_ctor_base&&)):
1397 Replace forward with move.
1398 (_Move_ctor_base<false, Types...>::_M_destructive_move)
1399 (_Move_ctor_base<false, Types...>::_M_destructive_copy)
1400 (_Move_ctor_base<true, Types...>::_M_destructive_move)
1401 (_Move_ctor_base<true, Types...>::_M_destructive_copy): Only set the
1402 index after construction succeeds.
1403 (_Copy_assign_base<false, Types...>::operator=): Remove redundant
1404 if-constexpr checks that are always true. Use __remove_cvref_t instead
1405 of remove_reference so that is_nothrow_move_constructible check
1406 doesn't use a const rvalue parameter. In the potentially-throwing case
1407 construct a temporary and move assign it, as per LWG 2904.
1408 (_Move_assign_base<false, Types...>::operator=): Remove redundant
1409 if-constexpr checks that are always true. Use emplace as per LWG 2904.
1410 (variant::operator=(T&&)): Only use emplace conditionally, otherwise
1411 construct a temporary and move assign from it, as per LWG 2904.
1412 * testsuite/20_util/variant/exception_safety.cc: Check that
1413 assignment operators have strong exception safety guarantee.
1415 2019-04-23 Thomas Rodgers <trodgers@redhat.com>
1417 Document PSTL linker flags
1419 * doc/xml/manual/using.xml: Add PSTL linker flags to table 3.1.
1421 2019-04-23 Jonathan Wakely <jwakely@redhat.com>
1423 * include/std/variant (__detail::__variant::_Traits): Make
1424 _S_trivial_copy_assign depend on _S_trivial_copy_ctor and make
1425 _S_trivial_move_assign depend on _S_trivial_move_ctor, as per
1427 (__detail::__variant::_Copy_assign_alias): Only depend on
1428 _S_trivial_copy_assign, which subsumes _S_trivial_copy_ctor now.
1429 * testsuite/20_util/variant/compile.cc: Correct checks for trivial
1430 move assignment operators.
1433 * include/std/variant (variant::__not_self): New helper for the
1434 is_same_v<remove_cvref_t<T>, variant>==false constraints.
1435 (variant::__to_type_impl): Remove.
1436 (variant::__to_type): Add default argument to check pack size, instead
1437 of using __to_type_impl.
1438 (variant::__accepted_type): Add default argument using __not_self.
1439 (variant::__is_in_place_tag, variant::__not_in_place_tag): New helpers
1440 for variant(T&&) constructor constraint.
1441 (variant::variant(T&&)): Use __not_in_place_tag in constraints.
1442 Extract __accepted_type into a named template parameter for reuse in
1443 other constraints and in the exception specification.
1444 (variant::variant(in_place_type_t<T>, Args&&...))
1445 (variant::variant(in_place_type_t<T>, initializer_list<U>, Args&&...))
1446 (variant::variant(in_place_index_t<T>, Args&&...))
1447 (variant::variant(in_place_index_t<T>, initializer_list<U>, Args&&...))
1448 (variant::operator=T&&)): Remove redundant && from trait arguments.
1449 * testsuite/20_util/variant/compile.cc: Check variant(T&&) constructor
1450 isn't used for in_place_type or in_place_index arguments.
1452 * include/std/type_traits (unwrap_reference_t): Define for C++2a.
1453 (unwrap_ref_decay): Remove inheritance from unwrap_reference.
1454 * testsuite/20_util/unwrap_reference/1.cc: Adjust test to use alias.
1456 2019-04-23 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
1457 Bernd Edlinger <bernd.edlinger@hotmail.de>
1458 Jakub Jelinek <jakub@redhat.com>
1461 * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Add
1462 general-regs-only target attribute for ARM.
1464 2019-04-23 Jonathan Wakely <jwakely@redhat.com>
1467 * include/bits/basic_string.h (_Never_valueless_alt): Make partial
1468 specialization also depend on is_nothrow_move_constructible.
1469 * include/std/variant (__detail::__variant::__never_valueless()):
1470 Only true if the variant would have a move assignment operator.
1471 (__detail::__variant::_Variant_storage<false, T...>::_M_valid()):
1472 Check __never_valueless<T...>().
1473 (variant::emplace): Only perform non-throwing move assignments
1474 for never-valueless alternatives if the variant has a move assignment
1476 * testsuite/20_util/variant/compile.cc: Check that never-valueless
1477 types can be emplaced into non-assignable variants.
1478 * testsuite/20_util/variant/run.cc: Check that never-valueless types
1479 don't get copied when emplaced into non-assignable variants.
1481 * include/std/variant (__detail::__variant::__ref_cast): Remove
1483 (__detail::__variant::_Uninitialized::_M_get)
1484 (__detail::__variant::__get)
1485 (__gen_vtable_impl::__element_by_index_or_cookie): Add noexcept.
1487 2019-04-21 Iain Sandoe <iain@sandoe.co.uk>
1489 * testsuite/17_intro/headers/c++1998/charset.cc: Skip for Darwin8
1491 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
1492 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
1493 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
1494 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
1496 2019-04-20 Thomas Rodgers <trodgers@redhat.com>
1498 Delegate PSTL configuration to pstl/pstl_config.h
1500 * include/bits/c++config: Remove explicit PSTL configuration
1501 macros and use definitions from <pstl/pstl_config.h>.
1503 2019-04-20 Thomas Rodgers <trodgers@redhat.com>
1505 Cleanup algorithm implementations
1506 * include/pstl/glue_algorithm_impl.h (stable_sort): Forward
1508 (mismatch): Forward execution policy.
1509 (equal): Qualify call to std::equal().
1510 (partial_sort): Forward execution policy.
1511 (inplace_merge): Forward execution policy.
1513 2019-04-19 Thomas Rodgers <trodgers@redhat.com>
1515 Improve implementation of parallel equal()
1516 * include/pstl/algorithm_impl.h
1517 (__internal::__brick_equal): use "4 iterator" version of
1519 (__internal::__brick_equal): use simd for random access
1520 iterators on unsequenced execution policies.
1521 (__internal::__pattern_equal): add "4 iterator" version
1522 (__internal::__pattern_equal): dispatch to simd __brick_equal
1523 for vector-only execution policies.
1524 (__internal::__pattern_equal): dispatch to __parallel_or for
1525 parallel execution policies.
1526 * include/pstl/glue_algorithm_impl.h
1527 (std::equal): dispatch to "4 iterator" version of
1528 __internal::__pattern_equal().
1530 2019-04-17 Jonathan Wakely <jwakely@redhat.com>
1533 * include/bits/forward_list.h (operator==): Do not use operator!= to
1535 (forward_list<T, A>::sort(Comp)): When elements are equal take the one
1536 earlier in the list, so that sort is stable.
1537 * testsuite/23_containers/forward_list/operations/90105.cc: New test.
1538 * testsuite/23_containers/forward_list/comparable.cc: Test with
1539 types that meet the minimum EqualityComparable and LessThanComparable
1540 requirements. Remove irrelevant comment.
1542 * include/std/variant (__detail::__variant::_Traits::_S_copy_assign):
1543 Do not depend on whether all alternative types are move constructible.
1544 (__detail::__variant::_Copy_assign_base::operator=): Remove cv-quals
1545 from the operand when deciding whether to perform the assignment.
1546 * testsuite/20_util/variant/compile.cc (DeletedMoves): Define type
1547 with deleted move constructor and deleted move assignment operator.
1548 (default_ctor, copy_ctor, move_ctor, copy_assign, move_assign): Check
1549 behaviour of variants with DeletedMoves as an alternative.
1550 * testsuite/20_util/variant/run.cc (DeletedMoves): Define same type.
1551 (move_ctor, move_assign): Check that moving a variant with a
1552 DeletedMoves alternative falls back to copying instead of moving.
1554 * testsuite/20_util/variant/compile.cc: Remove empty string literals
1555 from static_assert declarations.
1557 * testsuite/20_util/variant/compile.cc (MoveCtorOnly): Fix type to
1558 actually match its name.
1559 (MoveCtorAndSwapOnly): Define new type that adds swap to MoveCtorOnly.
1560 (test_swap()): Fix result for MoveCtorOnly and check
1561 MoveCtorAndSwapOnly.
1563 * include/std/optional (optional::value_or(U&&) &&): Add missing
1564 constexpr specifier.
1565 * testsuite/20_util/optional/constexpr/observers/4.cc: Check value_or
1566 for disengaged optionals and rvalue optionals.
1567 * testsuite/20_util/optional/observers/4.cc: Likewise.
1569 2019-04-12 Thomas Rodgers <trodgers@redhat.com>
1571 * include/pstl/algorithm_impl.h: Uglify identfiers.
1572 * include/pstl/numeric_impl.h: Uglify identfiers.
1573 * include/pstl/parallel_backend_tbb.h: Uglify identfiers.
1575 2019-04-11 Thomas Rodgers <trodgers@redhat.com>
1577 * include/bits/c++config:
1578 Add definition for __PSTL_ASSERT.
1579 Add definition for __PSTL_ASSERT_MSG.
1580 * include/pstl/algorithm_impl.h: Replace use of assert().
1581 * include/pstl/numeric_impl.h: Replace use of assert().
1582 * include/pstl/parallel_backend_tbb.h:
1583 Replace use of assert().
1584 Replace use of __TBB_ASSERT().
1585 * include/pstl/parallel_backend_utils.h: Replace use of assert().
1587 2019-04-11 Jonathan Wakely <jwakely@redhat.com>
1590 * src/c++17/memory_resource.cc
1591 (monotonic_buffer_resource::_Chunk::allocate): Increase alignment if
1592 needed to allow placing a _Chunk at the end of the buffer.
1593 (monotonic_buffer_resource::_M_new_buffer): Remove static_assert.
1595 2019-04-10 Jonathan Wakely <jwakely@redhat.com>
1597 * doc/xml/faq.xml: Add information about emergency EH pool.
1598 * doc/xml/manual/debug.xml: Update list of memory debugging tools.
1599 Move outdated information on mt_allocator to a separate section.
1600 * doc/xml/manual/evolution.xml: Clarify that GLIBCXX_FORCE_NEW
1601 doesn't affect the default allocator.
1603 * testsuite/lib/libstdc++.exp (check_v3_target_parallel_mode): Fix
1607 * testsuite/20_util/variant/89851.cc: New test.
1609 2019-04-09 Jonathan Wakely <jwakely@redhat.com>
1611 * include/std/variant: Adjust whitespace. Add comments.
1612 (_Multi_array): Leave primary template undefined.
1613 (_Multi_array<_Tp>): Define partial specialization for base case of
1615 (__gen_vtable_impl, __gen_vtable): Remove redundant && from type
1616 which is always a reference.
1617 (__gen_vtable::_S_apply()): Remove function, inline body into
1618 default member initializer.
1619 * testsuite/20_util/variant/visit.cc: Test with noncopyable types.
1621 * include/std/variant (__variant_idx_cookie): Add member type.
1622 (__visitor_result_type): Remove.
1623 (__do_visit): Use invoke_result instead of __visitor_result_type.
1624 * testsuite/20_util/variant/visit.cc: New test.
1627 * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Remove
1629 * testsuite/20_util/variant/90008.cc: New test.
1631 2019-04-09 Thomas Rodgers <trodgers@redhat.com>
1633 * include/pstl/algorithm_impl.h: Add namespace qualification.
1634 * include/pstl/execution_defs.h: Add namespace qualification.
1635 * include/pstl/execution_impl.h: Add namespace qualification.
1636 * include/pstl/numeric_impl.h: Add namespace qualification.
1637 * include/pstl/parallel_backend_tbb.h: Add namespace qualification.
1638 * include/pstl/unseq_backend_simd.h: Add namespace qualification.
1639 * include/pstl/parallel_backend_utils.h: Include <cassert>.
1641 2019-04-08 Ville Voutilainen <ville.voutilainen@gmail.com>
1643 Fix visit<R> for variant.
1644 * include/std/variant (__do_visit): Add a template parameter
1645 for enforcing same return types for visit.
1646 (__gen_vtable_impl): Likewise.
1647 (_S_apply_single_alt): Adjust.
1648 (__visit_invoke_impl): New. Handle casting to void.
1649 (__do_visit_invoke): New. Enforces same return types.
1650 (__do_visit_invoke_r): New. Converts return types.
1651 (__visit_invoke): Adjust.
1652 (__gen_vtable): Add a template parameter for enforcing
1653 same return types for visit.
1654 * testsuite/20_util/variant/visit_r.cc: Add a test for a visitor with
1655 different return types.
1656 * testsuite/20_util/variant/visit_neg.cc: New. Ensures that
1657 visitors with different return types don't accidentally
1658 compile with regular visitation.
1660 2019-04-08 Christophe Lyon <christophe.lyon@linaro.org>
1662 * testsuite/27_io/filesystem/iterators/caching.cc: Add
1663 dg-require-filesystem-ts.
1665 2019-04-05 Jonathan Wakely <jwakely@redhat.com>
1667 * doc/xml/manual/status_cxx2020.xml: Update status.
1668 * include/std/variant (visit<R>): Define for C++2a (P0655R1).
1669 * testsuite/20_util/variant/visit_r.cc: New test.
1671 * include/bits/fs_dir.h (directory_iterator::operator*)
1672 (directory_iterator::operator->): Add noexcept.
1673 (operator==, operator!=): Replace namespace-scope equality operators
1674 for directory iterators with hidden friends.
1677 * config/abi/pre/gnu.ver: Add missing exports.
1678 * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Test
1681 * config/abi/pre/gnu.ver: Export new symbols.
1682 * include/bits/fs_dir.h (recursive_directory_iterator::options())
1683 (recursive_directory_iterator::recursion_pending())
1684 (recursive_directory_iterator::disable_recursion_pending()): Remove
1685 inline definitions. Make noexcept.
1686 (recursive_directory_iterator::depth())
1687 (recursive_directory_iterator::operator*())
1688 (recursive_directory_iterator::operator->()): Make noexcept.
1689 (recursive_directory_iterator::_M_options)
1690 (recursive_directory_iterator::_M_pending): Remove data members.
1691 * src/c++17/fs_path.cc (_Dir_stack): Add constructor and data members.
1692 (recursive_directory_iterator::recursive_directory_iterator): Remove
1693 ctor-initializer. Use new constructor for _Dir_stack.
1694 (recursive_directory_iterator::options())
1695 (recursive_directory_iterator::recursion_pending())
1696 (recursive_directory_iterator::disable_recursion_pending()): Add
1697 non-inline definitions.
1698 (recursive_directory_iterator::depth()): Make noexcept.
1699 (recursive_directory_iterator::increment(error_code&))
1700 (recursive_directory_iterator::pop(error_code&)): Adjust to new
1701 location of options and recursion_pending members.
1702 * testsuite/27_io/filesystem/iterators/recursion_pending.cc: New test.
1703 * testsuite/util/testsuite_fs.h (__gnu_test::scoped_file): Add
1704 user-declared move constructor and assignment operator, to make the
1707 * src/c++17/fs_dir.cc (_Dir::advance(bool, error_code&)): Handle
1708 d_type == DT_UNKNOWN immediately.
1709 (_Dir::should_recurse(bool, error_code&)): Remove file_type::unknown
1711 * testsuite/27_io/filesystem/iterators/caching.cc: New test.
1713 * include/bits/fs_path.h (path::operator=(path&&)): Check for self
1715 * src/c++17/fs_path.cc (path::operator=(const path&)): Likewise.
1716 * testsuite/27_io/filesystem/path/assign/copy.cc: Test self
1719 PR libstdc++/87431 (again)
1720 * include/bits/basic_string.h (__variant::_Never_valueless_alt):
1721 Define partial specialization for basic_string.
1722 * include/bits/shared_ptr.h (_Never_valueless_alt): Likewise for
1723 shared_ptr and weak_ptr.
1724 * include/bits/std_function.h (_Never_valueless_alt): Likewise for
1726 * include/bits/stl_vector.h (_Never_valueless_alt): Likewise for
1728 * include/bits/unique_ptr.h (_Never_valueless_alt): Likewise for
1730 * include/debug/vector (_Never_valueless_alt): Likewise for debug
1732 * include/std/any (_Never_valueless_alt): Define explicit
1733 specialization for any.
1734 * include/std/variant (_Never_valueless_alt): Define primary template.
1735 (__never_valueless): Use _Never_valueless_alt instead of
1736 is_trivially_copyable.
1737 (variant::emplace<N>(Args&&...)): Add special case for non-throwing
1738 initializations to avoid try-catch overhead. Add special case for
1739 scalars produced by potentially-throwing conversions. Use
1740 _Never_valueless_alt instead of is_trivially_copyable for the
1741 remaining strong exception-safety cases.
1742 (variant::emplace<N>(initializer_list<U>, Args&&...)): Likewise.
1743 * testsuite/20_util/variant/87431.cc: Run both test functions.
1744 * testsuite/20_util/variant/exception_safety.cc: New test.
1745 * testsuite/20_util/variant/run.cc: Use pmr::string instead of string,
1746 so the variant becomes valueless.
1748 2019-04-03 Jonathan Wakely <jwakely@redhat.com>
1751 * include/std/variant (_Copy_assign_base, _Move_assign_base, variant):
1753 (variant::emplace<_Tp>): Return result of emplace<N> directly.
1755 * include/std/string (__hash_string_base): New class template defining
1756 operator() for hashing strings.
1757 (hash<pmr::string>, hash<pmr::u8string>, hash<pmr::u16string>)
1758 (hash<pmr::u32string>, hash<pmr::wstring>): Define for C++17.
1759 * testsuite/21_strings/basic_string/hash/hash.cc: New test.
1760 * testsuite/21_strings/basic_string/hash/hash_char8_t.cc: New test.
1762 2019-04-01 Ville Voutilainen <ville.voutilainen@gmail.com>
1764 Use single-visitation in variant assignment and swap and relops.
1765 Also use indices instead of types when checking whether
1766 variants hold the same thing.
1767 * include/std/variant (__do_visit): Add a template parameter
1768 for index visitation, invoke with indices if index visitation
1770 (__variant_idx_cookie): New.
1771 (__visit_with_index): Likewise.
1772 (_Copy_assign_base::operator=): Do single-visitation with
1774 (_Move_assign_base::operator=): Likewise.
1775 (_Extra_visit_slot_needed): Adjust.
1776 (__visit_invoke): Call with indices if it's an index visitor.
1777 (relops): Do single-visitation with an index visitor.
1779 (__visitor_result_type): New.
1781 2019-03-30 Eric Botcazou <ebotcazou@adacore.com>
1783 * src/c++17/fs_ops.cc (fs::permissions): Use std::errc::not_supported.
1785 2019-03-28 Ville Voutilainen <ville.voutilainen@gmail.com>
1787 Don't revisit a variant we are already visiting.
1788 * include/std/variant (__variant_construct_single): New.
1789 (__variant_construct): Use it.
1790 (_M_destructive_move): Likewise.
1791 (_M_destructive_copy): Likewise.
1792 (_Copy_assign_base::operator=): Adjust.
1793 (_Move_assign_base::operator=): Likewise.
1796 2019-03-26 Jonathan Wakely <jwakely@redhat.com>
1799 * include/bits/hashtable.h (_Hashtable): Move static assertions to
1800 destructor so they are not evaluated until the _Key type is complete.
1801 * include/bits/stl_tree.h (_Rb_tree): Likewise.
1802 * testsuite/23_containers/set/85965.cc: New test.
1803 * testsuite/23_containers/unordered_set/85965.cc: New test.
1804 * testsuite/23_containers/map/48101_neg.cc: Replace "here" errors
1805 with regexp matching the corresponding _Rb_tree specialization.
1806 * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
1807 * testsuite/23_containers/multiset/48101_neg.cc: Remove "here" error.
1808 * testsuite/23_containers/set/48101_neg.cc: Likewise.
1809 * testsuite/23_containers/unordered_map/48101_neg.cc: Likewise.
1810 * testsuite/23_containers/unordered_multimap/48101_neg.cc: Likewise.
1811 * testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise.
1812 * testsuite/23_containers/unordered_set/48101_neg.cc: Likewise.
1814 2019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com>
1817 Fix based on a suggestion by Antony Polukhin.
1818 * include/std/variant (__never_valueless): New.
1820 (_Extra_visit_slot_needed): New.
1821 (_Multi_array): Use it.
1822 (_S_apply_all_alts): Likewise.
1824 2019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com>
1827 Fix based on a suggestion by Antony Polukhin.
1828 * include/std/variant (__gen_vtable): Don't reserve an
1829 additional table slot, _Multi_array already does that.
1831 2019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com>
1834 Fix based on a suggestion by Antony Polukhin.
1835 * include/std/variant (__variant_construct): Capture a pointer
1836 to the storage and visit just one variant.
1838 2019-03-22 Jonathan Wakely <jwakely@redhat.com>
1840 * doc/xml/manual/backwards_compatibility.xml: Remove link to
1841 Doxygen-generated pages with unstable URL.
1842 * doc/xml/manual/concurrency_extensions.xml: Likewise.
1843 * doc/xml/manual/extensions.xml: Likewise.
1844 * doc/xml/manual/parallel_mode.xml: Likewise.
1845 * doc/xml/manual/support.xml: Likewise.
1847 * include/bits/stl_algobase.h (__lg): Do arithmetic on type int to
1848 avoid -Wconversion warnings.
1850 2019-03-21 Thomas Rodgers <trodgers@redhat.com>
1852 * include/Makefile.am (std_header): Add ${std_srcdir}/execution.
1853 (pstl_srcdir, pstl_builddir, pstl_headers): New variables.
1854 (allstamped): Add stamp-pstl.
1855 (install-headers): Add ptsl_builddir.
1856 * include/Makefile.in: Regenerate.
1857 * include/bits/c++config: Add pstl configuration.
1858 * include/pstl/LICENSE.txt: New file.
1859 * include/pstl/algorithm_fwd.h: New file.
1860 * include/pstl/algorithm_impl.h: New file.
1861 * include/pstl/execution_defs.h: New file.
1862 * include/pstl/execution_impl.h: New file.
1863 * include/pstl/glue_algorithm_defs.h: New file.
1864 * include/pstl/glue_algorithm_impl.h: New file.
1865 * include/pstl/glue_execution_defs.h: New file.
1866 * include/pstl/glue_memory_defs.h: New file.
1867 * include/pstl/glue_memory_impl.h: New file.
1868 * include/pstl/glue_numeric_defs.h: New file.
1869 * include/pstl/glue_numeric_impl.h: New file.
1870 * include/pstl/memory_impl.h: New file.
1871 * include/pstl/numeric_fwd.h: New file.
1872 * include/pstl/numeric_impl.h: New file.
1873 * include/pstl/parallel_backend.h: New file.
1874 * include/pstl/parallel_backend_tbb.h: New file.
1875 * include/pstl/parallel_backend_utils.h: New file.
1876 * include/pstl/parallel_impl.h: New file.
1877 * include/pstl/pstl_config.h: New file.
1878 * include/pstl/unseq_backend_simd.h: New file.
1879 * include/pstl/utils.h: New file.
1880 * include/std/algorithm: Include parallel algorithm implementations.
1881 * include/std/execution: New file.
1882 * include/std/memory: Include parallel algorithm implementations.
1883 * include/std/numeric: Include parallel algorithm implementations.
1884 * include/std/version: Add parallel algorithms feature test macro.
1885 * testsuite/util/pstl/pstl_test_config.h: New file.
1886 * testsuite/util/pstl/test_utils.h: New file.
1887 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file.
1888 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file.
1889 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file.
1890 * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file.
1891 * testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file.
1892 * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file.
1893 * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file.
1894 * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file.
1895 * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file.
1896 * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file.
1897 * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file.
1898 * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file.
1899 * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file.
1900 * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file.
1901 * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file.
1902 * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file.
1903 * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file.
1904 * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file.
1905 * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file.
1906 * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file.
1907 * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file.
1908 * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file.
1909 * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file.
1910 * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file.
1911 * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file.
1912 * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file.
1913 * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file.
1914 * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file.
1915 * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file.
1916 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file.
1917 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file.
1918 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file.
1919 * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file.
1920 * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file.
1921 * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file.
1922 * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file.
1923 * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file.
1924 * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file.
1925 * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file.
1926 * testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file.
1927 * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file.
1928 * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file.
1929 * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file.
1930 * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file.
1931 * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file.
1932 * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file.
1933 * testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file.
1934 * testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file.
1935 * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file.
1936 * testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file.
1937 * testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file.
1938 * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file.
1939 * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file.
1940 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file.
1941 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file.
1942 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file.
1943 * testsuite/testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file.
1944 * testsuite/testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file.
1945 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file.
1946 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file.
1947 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file.
1948 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file.
1949 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file.
1950 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file.
1951 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file.
1952 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file.
1953 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file.
1954 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file.
1955 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file.
1956 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file.
1957 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file.
1958 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file.
1959 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file.
1960 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file.
1961 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file.
1962 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file.
1963 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file.
1964 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file.
1965 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file.
1966 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file.
1967 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file.
1968 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file.
1969 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file.
1970 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file.
1971 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file.
1972 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file.
1973 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file.
1974 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file.
1975 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file.
1976 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file.
1977 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file.
1978 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file.
1979 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file.
1980 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file.
1981 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file.
1982 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file.
1983 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file.
1984 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file.
1985 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file.
1986 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file.
1987 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file.
1988 * testsuite/testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file.
1989 * testsuite/testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file.
1990 * testsuite/testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file.
1991 * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file.
1992 * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file.
1994 2019-03-21 Jonathan Wakely <jwakely@redhat.com>
1996 * include/c_compatibility/math.h [!__STDCPP_WANT_MATH_SPEC_FUNCS__]
1997 (assoc_laguerre, assoc_laguerref, assoc_laguerrel, assoc_legendre)
1998 (assoc_legendref, assoc_legendrel, beta, betaf, betal, comp_ellint_1)
1999 (comp_ellint_1f, comp_ellint_1l, comp_ellint_2, comp_ellint_2f)
2000 (comp_ellint_2l, comp_ellint_3, comp_ellint_3f, comp_ellint_3l)
2001 (cyl_bessel_i, cyl_bessel_if, cyl_bessel_il, cyl_bessel_j)
2002 (cyl_bessel_jf, cyl_bessel_jl, cyl_bessel_k, cyl_bessel_kf)
2003 (cyl_bessel_kl, cyl_neumann, cyl_neumannf, cyl_neumannl, ellint_1)
2004 (ellint_1f, ellint_1l, ellint_2, ellint_2f, ellint_2l, ellint_3)
2005 (ellint_3f, ellint_3l, expint, expintf, expintl, hermite, hermitef)
2006 (hermitel, laguerre, laguerref, laguerrel, legendre, legendref)
2007 (legendrel, riemann_zeta, riemann_zetaf, riemann_zetal, sph_bessel)
2008 (sph_besself, sph_bessell, sph_legendre, sph_legendref, sph_legendrel)
2009 (sph_neumann, sph_neumannf, sph_neumannl): Only add using-declarations
2010 when the special functions IS is enabled, not for C++17.
2011 * testsuite/26_numerics/headers/cmath/functions_global_c++17.cc:
2013 * testsuite/26_numerics/headers/cmath/functions_global.cc: New test,
2014 without checks for special functions in C++17.
2015 * testsuite/26_numerics/headers/cmath/special_functions_global.cc:
2019 * include/backward/hash_map: Use <> for includes not "".
2020 * include/backward/hash_set: Likewise.
2021 * include/backward/strstream: Likewise.
2022 * include/tr1/bessel_function.tcc: Likewise.
2023 * include/tr1/exp_integral.tcc: Likewise.
2024 * include/tr1/legendre_function.tcc: Likewise.
2025 * include/tr1/modified_bessel_func.tcc: Likewise.
2026 * include/tr1/riemann_zeta.tcc: Likewise.
2028 2019-03-19 Jonathan Wakely <jwakely@redhat.com>
2030 * doc/xml/manual/allocator.xml: Link to table documenting evolution
2031 of extension allocators.
2032 * doc/xml/manual/evolution.xml: Use angle brackets for header names.
2033 Document new headers in 7.2, 8.1 and 9.1 releases.
2034 * doc/xml/manual/using.xml: Adjust link target for new_allocator.
2035 * doc/html/*: Regenerate.
2037 2019-03-12 John David Anglin <dave.anglin@bell.net>
2040 * testsuite/lib/libstdc++.exp: Locate libatomic.
2041 * testsuite/lib/dg-options.exp (add_options_for_libatomic): New.
2042 * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc: Add
2044 * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
2045 * testsuite/experimental/net/timer/waitable/cons.cc: Likewise.
2046 * testsuite/experimental/net/timer/waitable/dest.cc: Likewise.
2047 * testsuite/experimental/net/timer/waitable/ops.cc: Likewise.
2049 2019-03-11 Jonathan Wakely <jwakely@redhat.com>
2052 * configure.ac: Check for sockatmark.
2053 * crossconfig.m4: Check for sockatmark.
2054 * config.h.in: Regenerate.
2055 * configure: Regenerate.
2056 * include/experimental/internet (address_v4::_S_hton): Rename
2057 overloaded functions to _S_hton_16 and _S_ntoh_16.
2058 (address_v4::_S_ntoh): Rename to _S_ntoh_16 and _S_ntoh_32.
2059 (basic_endpoint): Adjust calls to _S_hton and _S_ntoh.
2060 * include/experimental/socket (basic_socket::at_mark): Check
2061 _GLIBCXX_HAVE_SOCKATMARK.
2063 * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc: Use
2064 const variables instead of macros.
2067 * libsupc++/hash_bytes.cc [__SIZEOF_SIZE_T__ == 8] (_Hash_bytes):
2068 Use correct type for len_aligned.
2069 * testsuite/20_util/hash/89629.cc: New test.
2071 2019-03-11 Jakub Jelinek <jakub@redhat.com>
2074 * include/std/atomic (atomic<T>::store, atomic<T>::load,
2075 atomic<T>::exchange, atomic<T>::compare_exchange_weak,
2076 atomic<T>::compare_exchange_strong): Cast __m or __s and __f to int.
2077 * include/bits/atomic_base.h (__atomic_base<T>::operator++,
2078 __atomic_base<T>::operator--, __atomic_base<T>::operator+=,
2079 __atomic_base<T>::operator-=, __atomic_base<T>::operator&=,
2080 __atomic_base<T>::operator|=, __atomic_base<T>::operator^=,
2081 __atomic_base<T*>::operator++, __atomic_base<T*>::operator--,
2082 __atomic_base<T*>::operator+=, __atomic_base<T*>::operator-=): Cast
2083 memory_order_seq_cst to int.
2085 2019-03-08 Jonathan Wakely <jwakely@redhat.com>
2087 * doc/xml/manual/using.xml: Use link element instead of xref.
2088 * doc/html/*: Regenerate.
2090 * include/bits/fs_path.h (path::format): Add fixed underlying type.
2092 2019-03-08 François Dumont <fdumont@gcc.gnu.org>
2095 * include/debug/map.h (map): Use _RequireNotAllocator to constrain
2096 parameters in deduction guides.
2097 * include/debug/multimap.h (multimap): Likewise.
2098 * include/debug/set.h (multimap): Likewise.
2099 * include/debug/multiset.h (multimap): Likewise.
2100 * include/debug/unordered_map (unordered_map): Likewise.
2101 (unordered_multimap): Likewise.
2102 * include/debug/unordered_set (unordered_set): Likewise.
2103 (unordered_multiset): Likewise.
2106 * include/debug/unordered_map (unordered_map<>::_M_check_rehashed):
2107 Invalidate all iterators in case of rehash.
2108 (unordered_multimap<>::_M_check_rehashed): Likewise.
2109 * include/debug/unordered_set
2110 (unordered_set<>::_M_check_rehashed): Likewise.
2111 (unordered_multiset<>::_M_check_rehashed): Likewise.
2112 * testsuite/23_containers/unordered_set/debug/89608_neg.cc: New.
2114 2019-03-07 Andreas Schwab <schwab@suse.de>
2116 * config/abi/post/riscv64-linux-gnu: New directory.
2117 * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: New file.
2119 2019-03-07 Jonathan Wakely <jwakely@redhat.com>
2121 * testsuite/20_util/function_objects/bind_front/1.cc: Change from
2122 compile test to run. Fix typo.
2124 * doc/xml/manual/status_cxx2020.xml: Update C++20 status.
2125 * doc/html/*: Regenerate.
2127 P0356R5 Simplified partial function application
2128 * include/std/functional [C++20] (_Bind_front, _Bind_front_t): Define
2129 helpers for bind_front.
2130 (bind_front, __cpp_lib_bind_front): Define.
2131 * testsuite/20_util/function_objects/bind_front/1.cc: New test.
2133 2019-03-06 Jonathan Wakely <jwakely@redhat.com>
2135 * include/std/type_traits (__cpp_lib_bounded_array_traits): Define.
2136 * include/std/version (__cpp_lib_bounded_array_traits): Likewise.
2137 * testsuite/20_util/is_bounded_array/value.cc: Check for macro.
2138 * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
2140 2019-03-06 Edward Smith-Rowland <3dw4rd@verizon.net>
2142 PR libstdc++/86655 - std::assoc_legendre should not constrain
2143 the value of m (or x).
2144 * include/tr1/legendre_function.tcc (__assoc_legendre_p,
2145 __sph_legendre): If degree > order Don't throw, return 0.
2146 (__legendre_p, __assoc_legendre_p): Don't constrain x either.
2147 * testsuite/special_functions/02_assoc_legendre/pr86655.cc: New test.
2148 * testsuite/special_functions/20_sph_legendre/pr86655.cc: New test.
2149 * testsuite/tr1/5_numerical_facilities/special_functions/
2150 02_assoc_legendre/pr86655.cc: New test.
2151 * testsuite/tr1/5_numerical_facilities/special_functions/
2152 22_sph_legendre/pr86655.cc: New test.
2154 2019-03-06 Ville Voutilainen <ville.voutilainen@gmail.com>
2157 Also PR libstdc++/85517
2158 * include/std/variant (__do_visit): New.
2159 (__variant_cast): Likewise.
2160 (__variant_cookie): Likewise.
2161 (__erased_*): Remove.
2162 (_Variant_storage::_S_vtable): Likewise.
2163 (_Variant_storage::__M_reset_impl): Adjust to use __do_visit.
2164 (_Variant_storage::__M_reset): Adjust.
2165 (__variant_construct): New.
2166 (_Copy_ctor_base(const _Copy_ctor_base&)): Adjust to use
2167 __variant_construct.
2168 (_Move_ctor_base(_Move_ctor_base&&)): Likewise.
2169 (_Move_ctor_base::__M_destructive_copy): New.
2170 (_Move_ctor_base::__M_destructive_move): Adjust to use
2171 __variant_construct.
2172 (_Copy_assign_base::operator=): Adjust to use __do_visit.
2173 (_Copy_assign_alias): Adjust to check both copy assignment
2174 and copy construction for triviality.
2175 (_Move_assign_base::operator=): Adjust to use __do_visit.
2176 (_Multi_array): Add support for visitors that accept and return
2178 (__gen_vtable_impl::_S_apply_all_alts): Likewise.
2179 (__gen_vtable_impl::_S_apply_single_alt): Likewise.
2180 (__gen_vtable_impl::__element_by_index_or_cookie): New. Generate
2181 a __variant_cookie temporary for a variant that is valueless and..
2182 (__gen_vtable_impl::__visit_invoke): ..adjust here.
2183 (__gen_vtable::_Array_type): Conditionally make space for
2184 the __variant_cookie visitor case.
2185 (__variant_construct_by_index): New.
2186 (get_if): Adjust to use std::addressof.
2187 (relops): Adjust to use __do_visit.
2188 (variant): Add __variant_cast and __variant_construct_by_index
2190 (variant::emplace): Use _M_reset() and __variant_construct_by_index
2191 instead of self-destruction.
2192 (variant::swap): Adjust to use __do_visit.
2193 (visit): Reimplement in terms of __do_visit.
2194 (__variant_hash_call_base_impl::operator()): Adjust to use __do_visit.
2195 * testsuite/20_util/variant/compile.cc: Adjust.
2196 * testsuite/20_util/variant/run.cc: Likewise.
2198 2019-03-06 Jonathan Wakely <jwakely@redhat.com>
2200 * include/bits/c++config.h (_cpp_lib_char8_t): Add L suffix to
2202 * testsuite/experimental/feat-char8_t.cc: Likewise.
2204 * include/std/type_traits [C++20] (is_bounded_array)
2205 (is_unbounded_array, is_bounded_array_v, is_unbounded_array_v):
2207 * testsuite/20_util/is_bounded_array/requirements/
2208 explicit_instantiation.cc: New test.
2209 * testsuite/20_util/is_bounded_array/requirements/typedefs.cc: New
2211 * testsuite/20_util/is_bounded_array/value.cc: New test.
2212 * testsuite/20_util/is_unbounded_array/requirements/
2213 explicit_instantiation.cc: New test.
2214 * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc: New
2216 * testsuite/20_util/is_unbounded_array/value.cc: New test.
2218 * include/bits/ptr_traits.h [C++20] (pointer_traits<T*>::pointer_to):
2220 * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc: New test.
2222 2019-03-05 Jonathan Wakely <jwakely@redhat.com>
2224 * include/c_compatibility/math.h [C++20] (lerp): Add using
2226 * include/c_global/cmath [C++20] (__cpp_lib_interpolate): Define.
2227 (__lerp): Define function template to implement lerp.
2228 (lerp(float, float, float), lerp(double, double, double))
2229 (lerp(long double, long double, long double)): Define for C++20.
2230 * include/std/numeric [C++20] (__cpp_lib_interpolate): Define.
2231 (midpoint(T, T), midpoint(T*, T*)): Define.
2232 * include/std::version [C++20] (__cpp_lib_interpolate): Define.
2233 * testsuite/26_numerics/lerp.cc: New test.
2234 * testsuite/26_numerics/midpoint/floating.cc: New test.
2235 * testsuite/26_numerics/midpoint/integral.cc: New test.
2236 * testsuite/26_numerics/midpoint/pointer.cc: New test.
2238 2019-03-04 Edward Smith-Rowland <3dw4rd@verizon.net>
2240 PR libstdc++/88996 Implement P0439R0
2241 Make std::memory_order a scoped enumeration.
2242 * include/bits/atomic_base.h: For C++20 make memory_order a scoped enum,
2243 add variables for the old enumerators. Adjust calls.
2244 * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc: New test.
2245 * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc: New test.
2247 2019-03-04 Jonathan Wakely <jwakely@redhat.com>
2249 * testsuite/26_numerics/bit/bitops.rot/rotl.cc: Remove bogus dg-do
2252 * include/std/memory_resource (polymorphic_allocator): Add default
2253 template argument for C++20.
2254 (polymorphic_allocator::allocate_bytes)
2255 (polymorphic_allocator::deallocate_bytes)
2256 (polymorphic_allocator::allocate_object)
2257 (polymorphic_allocator::deallocate_object)
2258 (polymorphic_allocator::new_object)
2259 (polymorphic_allocator::delete_object): New member functions for
2261 * testsuite/20_util/polymorphic_allocator/allocate_object.cc: New
2264 2019-03-03 Jonathan Wakely <jwakely@redhat.com>
2267 * src/filesystem/ops-common.h (do_copy_file): Open files in binary
2270 2019-03-01 Jonathan Wakely <jwakely@redhat.com>
2272 * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource)
2273 [!__cpp_sized_deallocation]: Do not pass size to operator delete.
2275 * include/std/memory (uses_allocator_construction_args): New set of
2276 overloaded functions.
2277 (make_obj_using_allocator, uninitialized_construct_using_allocator):
2279 * include/std/memory_resource (polymorphic_allocator::construct)
2280 [__cplusplus > 201703l]: Replace all overloads with a single function
2281 using uses_allocator_construction_args.
2282 * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc: New
2284 * testsuite/20_util/uses_allocator/make_obj.cc: New test.
2286 2019-02-27 Jonathan Wakely <jwakely@redhat.com>
2289 * acinclude.m4 (GLIBCXX_CONFIGURE_DOCBOOK): Reorder check for local
2290 stylesheet directories before check for xsltproc. Try to use
2291 xmlcatalog to find local stylesheet directory before trying hardcoded
2292 paths. Add path used by suse to hardcoded paths. Adjust xsltproc
2293 check to look for the same stylesheet as doc/Makefile.am uses. Don't
2294 use xsltproc if xmlcatalog fails to find a local stylesheet.
2295 * configure.ac: Check for xmlcatalog.
2296 * Makefile.in: Regenerate.
2297 * configure: Likewise.
2298 * doc/Makefile.in: Likewise.
2299 * include/Makefile.in: Likewise.
2300 * libsupc++/Makefile.in: Likewise.
2301 * po/Makefile.in: Likewise.
2302 * python/Makefile.in: Likewise.
2303 * src/Makefile.in: Likewise.
2304 * src/c++11/Makefile.in: Likewise.
2305 * src/c++17/Makefile.in: Likewise.
2306 * src/c++98/Makefile.in: Likewise.
2307 * src/filesystem/Makefile.in: Likewise.
2308 * testsuite/Makefile.in: Likewise.
2310 2019-02-26 Jonathan Wakely <jwakely@redhat.com>
2313 * include/bits/alloc_traits.h (_RequireNotAllocator): New helper for
2314 container deduction guides.
2315 * include/bits/hashtable.h (_RequireNotAllocatorOrIntegral): Likewise.
2316 * include/bits/stl_map.h (map): Use _RequireNotAllocator to constrain
2317 parameters in deduction guides.
2318 * include/bits/stl_multimap.h (multimap): Likewise.
2319 * include/bits/stl_multiset.h (multiset): Likewise.
2320 * include/bits/stl_queue.h (queue, priority_queue): Likewise.
2321 * include/bits/stl_set.h (set): Likewise.
2322 * include/bits/stl_stack.h (stack): Likewise.
2323 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
2324 use _RequireNotAllocator and _RequireNotAllocatorOrIntegral to
2325 constrain parameters in deduction guides.
2326 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
2328 * testsuite/23_containers/map/cons/deduction.cc: Test additional
2330 * testsuite/23_containers/multiset/cons/deduction.cc: Likewise.
2331 * testsuite/23_containers/set/cons/deduction.cc: Likewise.
2332 * testsuite/23_containers/unordered_map/cons/deduction.cc: Likewise.
2333 * testsuite/23_containers/unordered_multimap/cons/deduction.cc:
2335 * testsuite/23_containers/unordered_multiset/cons/deduction.cc:
2337 * testsuite/23_containers/unordered_set/cons/deduction.cc: Likewise.
2340 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Change
2341 to class template and partial specialization using void_t.
2342 (__is_copy_insertable, __is_move_insertable): Adjust base class.
2344 2019-02-24 Jonathan Wakely <jwakely@redhat.com>
2347 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Make
2348 copy and move members public.
2350 2019-02-23 Jonathan Wakely <jwakely@redhat.com>
2352 * include/std/type_traits (__underlying_type_impl): New helper to
2353 make underlying_type SFINAE-friendly.
2354 (underlying_type): Derive from __underlying_type_impl.
2355 * testsuite/20_util/underlying_type/requirements/typedefs-3.cc: New
2359 * include/bits/char_traits.h (__constant_char_array): Check index is
2360 in range before dereferencing.
2361 (char_traits<char>::compare, char_traits<char>::find)
2362 (char_traits<char8_t>::compare, char_traits<char8_t>::find): Return
2363 immediately if n is zero.
2364 (char_traits<wchar_t>::compare, char_traits<wchar_t>::find): Likewise.
2365 Remove workarounds for PR 67026.
2366 * testsuite/21_strings/basic_string_view/operators/char/89446.cc:
2368 * testsuite/21_strings/basic_string_view/operators/wchar_t/89446.cc:
2371 2019-02-22 Eric Botcazou <ebotcazou@adacore.com>
2373 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Adjust.
2374 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
2376 2019-02-22 Jakub Jelinek <jakub@redhat.com>
2379 * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Change return
2380 type to std::size_t and argument to type to long double.
2382 2019-02-22 Eric Botcazou <ebotcazou@adacore.com>
2384 * configure.host (abi_baseline_pair): Adjust for SPARC64/Linux.
2385 * config/abi/post/sparc64-linux-gnu: New directory.
2386 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: New file.
2387 * config/abi/post/sparc64-linux-gnu/32: New directory.
2388 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: New file.
2390 2019-02-21 Jonathan Wakely <jwakely@redhat.com>
2392 * testsuite/29_atomics/headers/atomic/types_std_c++20.cc: New test.
2393 * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc: New
2396 2019-02-22 Tom Honermann <tom@honermann.net>
2398 * python/libstdcxx/v6/printers.py (register_type_printers): Add type
2399 printers for u8string and u8string_view.
2401 2019-02-22 Tom Honermann <tom@honermann.net>
2403 * testsuite/18_support/byte/ops.cc: Validate
2404 std::to_integer<char8_t>, std::to_integer<char16_t>, and
2405 std::to_integer<char32_t>.
2406 * testsuite/18_support/numeric_limits/dr559.cc: Validate
2407 std::numeric_limits<char8_t>.
2408 * testsuite/18_support/numeric_limits/lowest.cc: Validate
2409 std::numeric_limits<char8_t>::lowest().
2410 * testsuite/18_support/numeric_limits/max_digits10.cc: Validate
2411 std::numeric_limits<char8_t>::max_digits10.
2412 * testsuite/18_support/type_info/fundamental.cc: Validate
2413 typeinfo for char8_t.
2414 * testsuite/20_util/from_chars/1_c++20_neg.cc: New test, validating
2415 std::from_chars with char8_t.
2416 * testsuite/20_util/hash/requirements/explicit_instantiation.cc:
2417 Validate explicit instantiation of std::hash<char8_t>.
2418 * testsuite/20_util/is_integral/value.cc: Validate
2419 std::is_integral<char8_t>.
2420 * testsuite/20_util/make_signed/requirements/typedefs-4.cc:
2421 Validate std::make_signed<char8_t>.
2422 * testsuite/21_strings/basic_string/cons/char/deduction.cc:
2423 Validate u8string construction from char8_t sources.
2424 * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Validate
2426 * testsuite/21_strings/basic_string_view/operations/compare/
2427 char/70483.cc: Validate substr operations on u8string_view.
2428 * testsuite/21_strings/basic_string_view/typedefs.cc: Validate that
2429 the u8string_view typedef is defined.
2430 * testsuite/21_strings/char_traits/requirements/
2431 constexpr_functions.cc: Validate char_traits<char8_t> constexpr
2433 * testsuite/21_strings/char_traits/requirements/
2434 constexpr_functions_c++17.cc: Validate char_traits<char8_t> C++17
2435 constexpr member functions.
2436 * testsuite/21_strings/headers/string/types_std_c++0x.cc: Validate
2437 that the u8string typedef is defined.
2438 * testsuite/22_locale/locale/cons/unicode.cc: Validate the presence
2439 of the std::codecvt<char16_t, char8_t, std::mbstate_t> and
2440 std::codecvt<char32_t, char8_t, std::mbstate_t> facets.
2441 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Update line
2443 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
2444 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc:
2446 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
2447 * testsuite/29_atomics/atomic_integral/is_always_lock_free.cc:
2448 Validate std::atomic<char8_t>::is_always_lock_free
2449 * testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc:
2450 Update line numbers.
2451 * testsuite/29_atomics/atomic_integral/operators/decrement_neg.cc:
2453 * testsuite/29_atomics/atomic_integral/operators/increment_neg.cc:
2455 * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
2456 Validate std::experimental::pmr::u8string.
2457 * testsuite/experimental/string_view/typedefs.cc: Validate that the
2458 u8string_view typedef is defined.
2459 * testsuite/util/testsuite_common_types.h: Add char8_t, char16_t and
2460 char32_t to the typelists.
2462 2019-02-22 Tom Honermann <tom@honermann.net>
2464 * include/ext/typelist.h: Constrain a partial specialization of
2465 typelist::detail::append_ to only match chain<T1,T2>.
2467 2019-02-21 Jonathan Wakely <jwakely@redhat.com>
2470 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Replace
2471 class template with class. Replace move and copy member types with
2472 member alias templates, so they are only instantiated when needed.
2473 (__is_copy_insertable, __is_move_insertable): Adjust base class.
2474 * testsuite/23_containers/vector/modifiers/push_back/89130.cc: Enable
2475 test for C++11/14/17 as well.
2476 * testsuite/23_containers/vector/modifiers/push_back/89416.cc: New
2479 2019-02-20 Jakub Jelinek <jakub@redhat.com>
2482 * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Add
2483 _GLIBCXX_PURE to the alias declaration.
2485 2019-02-19 Jonathan Wakely <jwakely@redhat.com>
2487 * testsuite/21_strings/basic_string/literals/types.cc
2488 [_GLIBCXX_USE_CHAR8_T]: Adjust expected string type for u8 literal.
2489 * testsuite/21_strings/basic_string/literals/values.cc
2490 [_GLIBCXX_USE_CHAR8_T]: Likewise.
2491 * testsuite/22_locale/codecvt/char16_t.cc: Adjust for u8 literals
2492 potentially having different type.
2493 * testsuite/22_locale/codecvt/char32_t.cc: Likewise.
2494 * testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: Cast u8 literal
2496 * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: Likewise.
2497 * testsuite/22_locale/codecvt/utf8.cc: Likewise.
2498 * testsuite/22_locale/conversions/string/2.cc: Remove u8 prefix from
2499 string literals only using basic character set.
2500 * testsuite/22_locale/conversions/string/3.cc: Likewise. Cast other
2501 u8 literals to char.
2502 * testsuite/29_atomics/headers/atomic/macros.cc [_GLIBCXX_USE_CHAR8_T]:
2503 Test ATOMIC_CHAR8_T_LOCK_FREE.
2504 Add missing #error to ATOMIC_CHAR16_T_LOCK_FREE test.
2505 * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc
2506 [_GLIBCXX_USE_CHAR8_T]: Check for std::atomic_char8_t.
2507 * testsuite/experimental/string_view/literals/types.cc
2508 [_GLIBCXX_USE_CHAR8_T]: Adjust expected string_view type for u8
2510 * testsuite/experimental/string_view/literals/values.cc
2511 [_GLIBCXX_USE_CHAR8_T]: Likewise.
2513 2019-02-19 Tom Honermann <tom@honermann.net>
2515 * testsuite/18_support/numeric_limits/char8_t.cc: New test cloned
2516 from char16_32_t.cc; validates numeric_limits<char8_t>.
2517 * testsuite/21_strings/basic_string/literals/types-char8_t.cc: New
2518 test cloned from types.cc; validates operator""s for char8_t
2520 * testsuite/21_strings/basic_string/literals/values-char8_t.cc: New
2521 test cloned from values.cc; validates construction and comparison
2523 * testsuite/21_strings/basic_string/requirements/
2524 /explicit_instantiation/char8_t/1.cc: New test cloned from
2525 char16_t/1.cc; validates explicit instantiation of
2526 basic_string<char8_t>.
2527 * testsuite/21_strings/basic_string_view/literals/types-char8_t.cc:
2528 New test cloned from types.cc; validates operator""sv for char8_t
2529 returns u8string_view.
2530 * testsuite/21_strings/basic_string_view/literals/
2531 values-char8_t.cc: New test cloned from values.cc; validates
2532 construction and comparison of u8string_view values.
2533 * testsuite/21_strings/basic_string_view/requirements/
2534 explicit_instantiation/char8_t/1.cc: New test cloned from
2535 char16_t/1.cc; validates explicit instantiation of
2536 basic_string_view<char8_t>.
2537 * testsuite/21_strings/char_traits/requirements/char8_t/65049.cc:
2538 New test cloned from char16_t/65049.cc; validates that
2539 char_traits<char8_t> is not vulnerable to the concerns in PR65049.
2540 * testsuite/21_strings/char_traits/requirements/char8_t/
2541 typedefs.cc: New test cloned from char16_t/typedefs.cc; validates
2542 that char_traits<char8_t> member typedefs are present and correct.
2543 * testsuite/21_strings/char_traits/requirements/
2544 explicit_instantiation/char8_t/1.cc: New test cloned from
2545 char16_t/1.cc; validates explicit instantiation of
2546 char_traits<char8_t>.
2547 * testsuite/22_locale/codecvt/char16_t-char8_t.cc: New test cloned
2548 from char16_t.cc: validates
2549 codecvt<char16_t, char8_t, mbstate_t>.
2550 * testsuite/22_locale/codecvt/char32_t-char8_t.cc: New test cloned
2551 from char32_t.cc: validates
2552 codecvt<char32_t, char8_t, mbstate_t>.
2553 * testsuite/22_locale/codecvt/utf8-char8_t.cc: New test cloned from
2554 utf8.cc; validates codecvt<char16_t, char8_t, std::mbstate_t> and
2555 codecvt<char32_t, char8_t, std::mbstate_t>.
2556 * testsuite/27_io/filesystem/path/native/string-char8_t.cc: New
2557 test cloned from string.cc; validates filesystem::path construction
2559 * testsuite/experimental/feat-char8_t.cc: New test; validates that
2560 the __cpp_lib_char8_t feature test macro is defined with the
2562 * testsuite/experimental/filesystem/path/native/string-char8_t.cc:
2563 New test cloned from string.cc; validates filesystem::path
2564 construction from char8_t input.
2565 * testsuite/experimental/string_view/literals/types-char8_t.cc: New
2566 test cloned from types.cc; validates operator""sv for char8_t
2567 returns u8string_view.
2568 * testsuite/experimental/string_view/literals/values-char8_t.cc:
2569 New test cloned from values.cc; validates construction and
2570 comparison of u8string_view values.
2571 * testsuite/experimental/string_view/requirements/
2572 explicit_instantiation/char8_t/1.cc: New test cloned from
2573 char16_t/1.cc; validates explicit instantiation of
2574 basic_string_view<char8_t>.
2575 * testsuite/ext/char8_t/atomic-1.cc: New test; validates that
2576 ATOMIC_CHAR8_T_LOCK_FREE is not defined if char8_t support is not
2579 2019-02-19 Tom Honermann <tom@honermann.net>
2581 P0482R5 char8_t: Standard library support
2582 * config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
2583 typeinfo symbols for char8_t.
2584 * config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
2585 (GLIBCXX_3.4.26): Add symbols for specializations of
2586 numeric_limits and codecvt that involve char8_t.
2587 (CXXABI_1.3.12): Add typeinfo symbols for char8_t.
2588 * include/bits/atomic_base.h: Add atomic_char8_t.
2589 * include/bits/basic_string.h: Add std::hash<u8string> and
2590 operator""s(const char8_t*, size_t).
2591 * include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
2593 * include/bits/char_traits.h: Add char_traits<char8_t>.
2594 * include/bits/codecvt.h: Add
2595 codecvt<char16_t, char8_t, mbstate_t>,
2596 codecvt<char32_t, char8_t, mbstate_t>,
2597 codecvt_byname<char16_t, char8_t, mbstate_t>, and
2598 codecvt_byname<char32_t, char8_t, mbstate_t>.
2599 * include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
2600 recognize char8_t as an integral type.
2601 * include/bits/fs_path.h: (path::__is_encoded_char): Recognize
2603 (path::u8string): Return std::u8string when char8_t support is
2605 (path::generic_u8string): Likewise.
2606 (path::_S_convert): Handle conversion from char8_t input.
2607 (path::_S_str_convert): Likewise.
2608 * include/bits/functional_hash.h: Add hash<char8_t>.
2609 * include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
2611 * include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
2612 for new char8_t specializations.
2613 * include/bits/localefwd.h: Add missing declarations of
2614 codecvt<char16_t, char, mbstate_t> and
2615 codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
2616 codecvt<char16_t, char8_t, mbstate_t> and
2617 codecvt<char32_t, char8_t, mbstate_t>.
2618 * include/bits/postypes.h: Add u8streampos
2619 * include/bits/stringfwd.h: Add declarations of
2620 char_traits<char8_t> and u8string.
2621 * include/c_global/cstddef: Add __byte_operand<char8_t>.
2622 * include/experimental/bits/fs_path.h (path::__is_encoded_char):
2624 (path::u8string): Return std::u8string when char8_t support is
2626 (path::generic_u8string): Likewise.
2627 (path::_S_convert): Handle conversion from char8_t input.
2628 (path::_S_str_convert): Likewise.
2629 * include/experimental/string: Add u8string.
2630 * include/experimental/string_view: Add u8string_view,
2631 hash<experimental::u8string_view>, and
2632 operator""sv(const char8_t*, size_t).
2633 * include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
2634 * include/std/charconv (__is_int_to_chars_type): Recognize char8_t
2635 as a character type.
2636 * include/std/limits: Add numeric_limits<char8_t>.
2637 * include/std/string_view: Add u8string_view,
2638 hash<experimental::u8string_view>, and
2639 operator""sv(const char8_t*, size_t).
2640 * include/std/type_traits: Add __is_integral_helper<char8_t>,
2641 __make_unsigned<char8_t>, and __make_signed<char8_t>.
2642 * libsupc++/atomic_lockfree_defines.h: Define
2643 ATOMIC_CHAR8_T_LOCK_FREE.
2644 * src/c++11/Makefile.am: Compile with -fchar8_t when compiling
2645 codecvt.cc and limits.cc so that char8_t specializations of
2646 numeric_limits and codecvt and emitted.
2647 * src/c++11/Makefile.in: Likewise.
2648 * src/c++11/codecvt.cc: Define members of
2649 codecvt<char16_t, char8_t, mbstate_t>,
2650 codecvt<char32_t, char8_t, mbstate_t>,
2651 codecvt_byname<char16_t, char8_t, mbstate_t>, and
2652 codecvt_byname<char32_t, char8_t, mbstate_t>.
2653 * src/c++11/limits.cc: Define members of
2654 numeric_limits<char8_t>.
2655 * src/c++98/Makefile.am: Compile with -fchar8_t when compiling
2656 locale_init.cc and localename.cc.
2657 * src/c++98/Makefile.in: Likewise.
2658 * src/c++98/locale_init.cc: Add initialization for the
2659 codecvt<char16_t, char8_t, mbstate_t> and
2660 codecvt<char32_t, char8_t, mbstate_t> facets.
2661 * src/c++98/localename.cc: Likewise.
2662 * testsuite/util/testsuite_abi.cc: Validate ABI bump.
2664 2019-02-18 Wilco Dijkstra <wdijkstr@arm.com>
2666 * 27_io/filesystem/operations/all.cc: Add dg-require-filesystem-ts.
2667 * 27_io/filesystem/operations/resize_file.cc: Likewise.
2668 * 27_io/filesystem/path/generation/normal2.cc: Likewise.
2670 2019-02-14 Jonathan Wakely <jwakely@redhat.com>
2672 * doc/xml/manual/status_cxx2020.xml: Update P0887R1 status.
2673 * doc/html/*: Regenerate.
2675 * doc/xml/manual/status_cxx2017.xml: Add P0063R3 to status table.
2676 * doc/html/*: Regenerate.
2678 * doc/xml/manual/intro.xml: Document LWG 2586 status.
2679 * include/bits/uses_allocator.h (__uses_alloc): Use const lvalue
2680 allocator type in is_constructible checks.
2681 * testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust dg-error.
2682 * testsuite/20_util/scoped_allocator/dr2586.cc: New test.
2683 * testsuite/20_util/tuple/cons/allocators.cc: Add test using
2684 problematic type from LWG 2586 discussion.
2685 * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error.
2686 * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
2688 * configure.ac: Check for C11 timespec_get function.
2689 * crossconfig.m4 (freebsd, linux, gnu, cygwin, solaris, netbsd)
2691 * config.h.in: Regenerate.
2692 * configure: Regenerate.
2693 * include/c_global/ctime (timespec, timespec_get): Add to namespace
2694 std for C++17 and up.
2696 * doc/xml/manual/intro.xml: Document LWG 2537 status.
2697 * include/bits/stl_queue.h
2698 (priority_queue(const Compare&, const Container&, const Alloc&))
2699 (priority_queue(const Compare&, Container&&, const Alloc&)): Call
2701 * testsuite/23_containers/priority_queue/dr2537.cc: New test.
2703 * doc/xml/manual/intro.xml: Document LWG 2566 status.
2704 * include/bits/stl_queue.h (queue, priority_queue): Add static
2705 assertions to enforce LWG 2566 requirement on value_type.
2706 * include/bits/stl_stack.h (stack): Likewise.
2709 * testsuite/20_util/enable_shared_from_this/89303.cc: New test.
2711 * doc/xml/manual/intro.xml: Document LWG 2735 status.
2712 * include/bits/std_abs.h: Add comment about LWG 2735.
2713 * testsuite/26_numerics/headers/cstdlib/dr2735.cc: New test.
2715 2019-02-13 Jonathan Wakely <jwakely@redhat.com>
2718 * include/std/version [__cpp_impl_destroying_delete]
2719 (__cpp_lib_destroying_delete): Only define for C++2a and later.
2720 * libsupc++/new [__cpp_impl_destroying_delete]
2721 (__cpp_lib_destroying_delete): Likewise.
2722 (destroying_delete_t, destroying_delete): Likewise, but define even
2723 when __cpp_impl_destroying_delete is not defined.
2724 * testsuite/18_support/destroying_delete.cc: New test.
2726 2019-02-11 Jonathan Wakely <jwakely@redhat.com>
2729 * testsuite/17_intro/headers/c++2011/parallel_mode.cc: New test.
2730 * testsuite/17_intro/headers/c++2014/parallel_mode.cc: New test.
2731 * testsuite/17_intro/headers/c++2017/parallel_mode.cc: New test.
2732 * testsuite/28_regex/headers/regex/parallel_mode.cc: Remove.
2734 2019-02-09 Jonathan Wakely <jwakely@redhat.com>
2737 * include/bits/fs_path.h (path::has_root_name)
2738 (path::has_root_directory, path::has_root_path)
2739 (path::has_relative_path, path::has_parent_path)
2740 (path::has_filename, path::has_stem, path::has_extension)
2741 (path::is_absolute, path::is_relative, path::_M_find_extension): Add
2743 * src/c++17/fs_path.cc (path::has_root_name)
2744 (path::has_root_directory, path::has_root_path)
2745 (path::has_relative_path, path::has_parent_path)
2746 (path::has_filename, path::_M_find_extension): Add noexcept.
2748 2019-02-06 Jonathan Wakely <jwakely@redhat.com>
2750 PR libstdc++/89102 (partial)
2751 * include/std/type_traits (common_type<>): Define.
2752 (common_type<T>): Derive from common_type<T, T>.
2753 * testsuite/20_util/common_type/requirements/explicit_instantiation.cc:
2754 Test zero-length template argument list.
2755 * testsuite/20_util/common_type/requirements/sfinae_friendly_1.cc:
2756 Test additional single argument cases.
2757 * testsuite/20_util/common_type/requirements/sfinae_friendly_2.cc:
2758 Adjust expected error.
2760 2019-02-05 Jonathan Wakely <jwakely@redhat.com>
2763 * include/bits/stl_queue.h (queue, priority_queue): Add deduction
2765 * include/bits/stl_stack.h (stack): Likewise.
2766 * testsuite/23_containers/priority_queue/deduction.cc: New test.
2767 * testsuite/23_containers/queue/deduction.cc: New test.
2768 * testsuite/23_containers/stack/deduction.cc: New test.
2771 * include/std/type_traits (__is_convertible_helper)
2772 (__is_convertible_helper<_From, _To, false>): Revert changes to
2773 support is_nothrow_convertible.
2774 (__is_nt_convertible_helper): New helper.
2775 (is_nothrow_convertible): Use __is_nt_convertible_helper.
2777 * testsuite/23_containers/vector/modifiers/push_back/49836.cc: Restore
2778 use of CopyConsOnlyType, but also test DelAnyAssign for completeness.
2781 * include/bits/alloc_traits.h (__is_copy_insertable_impl): Rename to
2782 __is_alloc_insertable_impl. Replace single type member with two
2783 members, one for each of copy and move insertable.
2784 (__is_move_insertable): New trait for internal use.
2785 * include/bits/stl_vector.h (vector::_S_nothrow_relocate(true_type))
2786 (vector::_S_nothrow_relocate(true_type)): New functions to
2787 conditionally check if __relocate_a can throw.
2788 (vector::_S_use_relocate()): Dispatch to _S_nothrow_relocate based
2789 on __is_move_insertable.
2790 (vector::_S_do_relocate): New overloaded functions to conditionally
2792 (vector::_S_relocate): New function that dispatches to _S_do_relocate
2793 based on _S_use_relocate.
2794 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
2795 (vector::_M_default_append): Call _S_relocate instead of __relocate_a.
2796 * testsuite/23_containers/vector/modifiers/push_back/89130.cc: New.
2799 * include/bits/stl_uninitialized.h (__relocate_a_1): Make unused
2800 parameter unnamed. Add message to static assertion.
2801 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
2802 (vector::_M_default_append): Use _GLIBCXX17_CONSTEXPR for if constexpr
2805 2019-02-05 Marc Glisse <marc.glisse@inria.fr>
2808 * include/bits/stl_uninitialized.h (__is_trivially_relocatable):
2810 (__is_bitwise_relocatable): ... to this.
2811 (__relocate_a_1): Adapt.
2812 * include/bits/stl_deque.h (__is_trivially_relocatable): Rename...
2813 (__is_bitwise_relocatable): ... to this.
2815 2019-01-30 Jonathan Wakely <jwakely@redhat.com>
2818 * src/c++17/fs_path.cc (path::replace_extension): Erase extension from
2819 final component as well as from _M_pathname. Append the dot using
2820 operator+= instead of only to _M_pathname.
2821 (path::_M_find_extension): Reformat slightly.
2822 * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
2823 Add more test cases.
2825 2019-01-30 Ulrich Drepper <drepper@redhat.com>
2827 * doc/xml/manual/status_cxx2020.xml: Update P0600 entry.
2829 2019-01-29 Jonathan Wakely <jwakely@redhat.com>
2831 * testsuite/26_numerics/headers/complex/synopsis.cc: Remove incorrect
2832 constexpr specifiers from arg and proj.
2834 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add missing exports for
2835 __shared_ptr instantiations used by gcc4-compatible ABI.
2837 * include/experimental/forward_list (experimental::erase): Qualify
2839 * include/experimental/list (experimental::erase): Likewise.
2840 * include/std/forward_list (std::erase): Likewise.
2841 * include/std/list (std::erase): Likewise.
2843 * testsuite/20_util/reference_wrapper/result_type.cc: Disable for
2845 * testsuite/20_util/reference_wrapper/typedefs-2.cc: Likewise.
2846 * testsuite/20_util/reference_wrapper/typedefs-3.cc: Likewise.
2847 * testsuite/20_util/reference_wrapper/typedefs.cc: Likewise.
2848 * testsuite/30_threads/async/54297.cc: Suppress nodiscard warning.
2849 * testsuite/ext/array_allocator/26875.cc: Likewise.
2850 * testsuite/ext/pool_allocator/allocate_chunk.cc: Likewise.
2851 * testsuite/util/replacement_memory_operators.h: Likewise.
2852 * testsuite/util/testsuite_allocator.h: Likewise.
2854 * include/std/memory_resource (__pool_resource::_M_unpooled): Use
2855 normal mode vector, even for debug mode.
2856 * include/std/vector [_GLIBCXX_DEBUG] (_GLIBCXX_STD_C::pmr::vector):
2857 Define alias template for normal mode vector.
2859 2019-01-28 Jonathan Wakely <jwakely@redhat.com>
2862 * config/locale/generic/c_locale.h (__convert_from_v)
2863 [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
2864 * config/os/hpux/os_defines.h: Define _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
2865 * include/bits/locale_facets.tcc (num_put::_M_insert_float)
2866 [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
2868 2019-01-24 Jonathan Wakely <jwakely@redhat.com>
2871 * include/bits/stl_vector.h (vector::__use_relocate): Replace static
2872 data member with static member function _S_use_relocate().
2873 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
2874 (vector::_M_default_append): Use _S_use_relocate() instead of
2877 * testsuite/27_io/filesystem/path/compare/strings.cc: Only compare
2880 2019-01-22 Jonathan Wakely <jwakely@redhat.com>
2883 * testsuite/util/testsuite_hooks.h [stderr] (VERIFY): Use fprintf to
2884 write to stderr instead of using printf.
2886 2019-01-21 Jakub Jelinek <jakub@redhat.com>
2889 * include/bits/char_traits.h (__constant_string_p,
2890 __constant_char_array_p): Use __builtin_is_constant_evaluated if
2893 2019-01-20 Ulrich Drepper <drepper@redhat.com>
2895 Implement C++20 P0600r1.
2896 * include/backward/hash_map: Add nodiscard attribute to empty.
2897 * include/backward/hash_set: Likewise.
2898 * backward/hashtable.h: Likewise.
2899 * include/bits/basic_string.h: Likewise.
2900 * include/bits/forward_list.h: Likewise.
2901 * include/bits/hashtable.h: Likewise.
2902 * include/bits/regex.h: Likewise.
2903 * include/bits/stl_deque.h: Likewise.
2904 * include/bits/stl_list.h: Likewise.
2905 * include/bits/stl_map.h: Likewise.
2906 * include/bits/stl_multimap.h: Likewise.
2907 * include/bits/stl_multiset.h: Likewise.
2908 * include/bits/stl_queue.h: Likewise.
2909 * include/bits/stl_set.h: Likewise.
2910 * include/bits/stl_stack.h: Likewise.
2911 * include/bits/stl_tree.h: Likewise.
2912 * include/bits/stl_vector.h: Likewise.
2913 * include/bits/unordered_map.h: Likewise.
2914 * include/bits/unordered_set.h: Likewise.
2915 * include/debug/array: Likewise.
2916 * include/experimental/any: Likewise.
2917 * include/experimental/bits/fs_path.h: Likewise.
2918 * include/experimental/internet: Likewise.
2919 * include/experimental/string_view: Likewise.
2920 * include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp:
2922 * include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp:
2924 * include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp:
2926 * include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp:
2928 * include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp:
2930 * include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp:
2932 * include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp:
2934 * include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp:
2936 * include/ext/pb_ds/detail/left_child_next_sibling_heap_/
2937 info_fn_imps.hpp: Likewise.
2938 * include/ext/pb_ds/detail/left_child_next_sibling_heap_/
2939 left_child_next_sibling_heap_.hpp: Likewise.
2940 * include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp:
2942 * include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp:
2944 * include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp:
2946 * include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hp:
2948 * include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp:
2950 * include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp:
2952 * include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp:
2954 * include/ext/pb_ds/detail/tree_trace_base.hpp: Likewise.
2955 * include/ext/pb_ds/trie_policy.hpp: Likewise.
2956 * include/ext/rope: Likewise.
2957 * include/ext/slist: Likewise.
2958 * include/ext/vstring.h: Likewise.
2959 * include/profile/array: Likewise.
2960 * include/std/array: Likewise.
2961 * include/tr1/array: Likewise.
2962 * include/tr1/hashtable.h: Likewise.
2963 * include/tr1/regex: Likewise.
2964 * include/tr2/dynamic_bitset: Likewise.
2965 * include/bits/alloc_traits.h: Add nodiscard attribute to
2967 * include/experimental/memory_resource: Likewise.
2968 * include/ext/alloc_traits.h: Likewise.
2969 * include/ext/array_allocator.h: Likewise.
2970 * include/ext/bitmap_allocator.h: Likewise.
2971 * include/ext/debug_allocator.h: Likewise.
2972 * include/ext/extptr_allocator.h: Likewise.
2973 * include/ext/mt_allocator.h: Likewise.
2974 * include/ext/new_allocator.h: Likewise.
2975 * include/ext/pool_allocator.h: Likewise.
2976 * include/ext/throw_allocator.h: Likewise.
2977 * include/std/scoped_allocator: Likewise.
2978 * libsupc++/eh_alloc.cc: Likewise.
2979 * include/std/future: Add nodiscard attribute to async.
2980 * libsupc++/new: Add nodiscard attribute to new.
2982 2019-01-18 Jonathan Wakely <jwakely@redhat.com>
2987 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export new symbol.
2988 * include/bits/shared_ptr.h
2989 (shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...))
2990 (allocate_shared): Change to use new tag type.
2991 * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_eq):
2992 Declare new member function.
2993 (_Sp_alloc_shared_tag): Define new type.
2994 (_Sp_counted_ptr_inplace): Declare __shared_count<_Lp> as a friend.
2995 (_Sp_counted_ptr_inplace::_M_get_deleter) [!__cpp_rtti]: Use
2996 _Sp_make_shared_tag::_S_eq to check type_info.
2997 (__shared_count(Ptr, Deleter),__shared_count(Ptr, Deleter, Alloc)):
2998 Constrain to prevent being called with _Sp_alloc_shared_tag.
2999 (__shared_count(_Sp_make_shared_tag, const _Alloc&, Args&&...)):
3000 Replace constructor with ...
3001 (__shared_count(Tp*&, _Sp_alloc_shared_tag<_Alloc>, Args&&...)): Use
3002 reference parameter so address of the new object can be returned to
3003 the caller. Obtain the allocator from the tag type.
3004 (__shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)): Replace
3005 constructor with ...
3006 (__shared_ptr(_Sp_alloc_shared_tag<Alloc>, Args&&...)): Pass _M_ptr
3007 to the __shared_count constructor.
3008 (__allocate_shared): Change to use new tag type.
3009 * src/c++11/shared_ptr.cc (_Sp_make_shared_tag::_S_eq): Define.
3011 2019-01-17 Jonathan Wakely <jwakely@redhat.com>
3013 * src/c++17/fs_ops.cc
3014 (equivalent(const path&, const path&, error_code&))
3015 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use GetFileInformationByHandle to
3016 compare files instead of relying on incomplete info returned by stat.
3019 * src/c++17/fs_ops.cc (absolute(const path&, error_code&)): Do nothing
3020 if the path is already absolute.
3021 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize root-directory.
3022 [!_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Pass error_code to current_path.
3025 * src/c++17/fs_ops.cc (canonical(const path&, error_code&))
3026 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize path, to match behaviour
3027 of filesystem::exists.
3028 (create_directories(const path&, error_code&)): Add assertions.
3029 (status(const path&, error_code&)) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]:
3030 Add workaround for bug in _wstat for paths with trailing slash.
3031 * testsuite/27_io/filesystem/operations/create_directories.cc: Adjust
3032 for expected behaviour on mingw.
3033 * testsuite/experimental/filesystem/operations/create_directories.cc:
3035 * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Use
3036 "TMP" instead of "TMPDIR" and clean environment before each test. Do
3037 not test permissions on mingw targets.
3039 2019-01-16 Jonathan Wakely <jwakely@redhat.com>
3041 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add exports for fstream
3042 constructors and open members taking wide strings. Fix patterns for
3043 filesystem::path members to match wstring_view parameters. Add
3044 exports for shared_ptr members used by directory iterators.
3045 * src/c++17/fs_ops.cc (remove(const path&, error_code&)): Clear the
3046 error code parameter if the file doesn't exist.
3047 * src/filesystem/ops.cc (remove(const path&, error_code&)):
3049 * testsuite/27_io/filesystem/operations/canonical.cc: Fix expected
3050 values for mingw targets, where "/" is not an absolute path. Do not
3051 test symlinks on mingw targets.
3052 * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
3053 * testsuite/27_io/filesystem/operations/copy.cc: Do not test symlinks
3055 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
3056 * testsuite/27_io/filesystem/operations/create_directories.cc: Check
3057 that each component of the path is created.
3058 * testsuite/experimental/filesystem/operations/create_directories.cc:
3060 * testsuite/27_io/filesystem/operations/exists.cc: Do not test
3061 permissions on mingw targets.
3062 * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
3063 * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
3064 * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
3065 * testsuite/27_io/filesystem/operations/permissions.cc: XFAIL for
3067 * testsuite/experimental/filesystem/operations/permissions.cc:
3069 * testsuite/27_io/filesystem/operations/remove.cc: Do not test
3070 symlinks or permissions on mingw targets.
3071 * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
3072 * testsuite/27_io/filesystem/operations/remove_all.cc: Do not test
3073 symlinks on mingw targets.
3074 * testsuite/experimental/filesystem/operations/remove_all.cc:
3076 * testsuite/27_io/filesystem/operations/status.cc: Do not test
3077 permissions on mingw targets.
3078 * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Do not
3079 test symlinks on mingw targets.
3080 * testsuite/experimental/filesystem/operations/space.cc: Fix test
3083 2019-02-14 Ulrich Drepper <drepper@redhat.com>
3086 Warn about unused comparisons of shared_ptr/unique_ptr
3087 * include/bits/c++config [_GLIBCXX_NODISCARD]: Define.
3088 * include/bits/shared_ptr.h: Use it for operator ==, !=,
3089 <, <=, >, >= for shared_ptr.
3090 * include/bits/unique_ptr.h: Likewise for unique_ptr.
3092 2019-01-15 Jonathan Wakely <jwakely@redhat.com>
3094 * include/bits/shared_ptr_base.h (__cpp_lib_shared_ptr_arrays): Define
3095 as 201611L, because P0497R0 changes are supported.
3096 * include/std/version (__cpp_lib_shared_ptr_arrays): Likewise.
3098 * include/bits/erase_if.h [__cplusplus > 201703L]
3099 (__cpp_lib_erase_if): Only define for C++2a.
3100 * include/std/iterator [__cplusplus >= 201402L && !_GLIBCXX_DEBUG]
3101 (__cpp_lib_null_iterators): Define.
3102 * include/std/version [__cplusplus >= 201402L && !_GLIBCXX_DEBUG]
3103 (__cpp_lib_null_iterators): Define.
3104 [__cpp_impl_destroying_delete] (__cpp_lib_destroying_delete): Define.
3106 * doc/xml/manual/status_cxx2017.xml: Document P0032R3 and P0307R2
3108 * include/bits/stl_uninitialized.h (__cpp_lib_raw_memory_algorithms):
3110 * include/std/any (__cpp_lib_any): Define as 201606L, because P0032R3
3111 changes are supported.
3112 * include/std/optional (__cpp_lib_optional): Likewise.
3113 * include/std/variant (__cpp_lib_variant): Likewise.
3114 * include/std/version [!__STRICT_ANSI__]
3115 (__cpp_lib_uncaught_exceptions): Define as long integer.
3116 [__cplusplus >= 201703L] (__cpp_lib_any)
3117 (__cpp_lib_raw_memory_algorithms, __cpp_lib_uncaught_exceptions)
3118 (__cpp_lib_variant): Define for C++17.
3119 [__cplusplus >= 201703L] (__cpp_lib_optional): Update value and define
3121 * libsupc++/exception (__cpp_lib_uncaught_exceptions): Define as long
3124 * doc/xml/manual/status_cxx2020.xml: Update P1123R0 status.
3126 2019-01-12 Jonathan Wakely <jwakely@redhat.com>
3130 * src/filesystem/path.cc: Fix typo. If first path is empty, show []
3132 * testsuite/experimental/filesystem/filesystem_error/cons.cc: New
3135 2019-01-11 Jonathan Wakely <jwakely@redhat.com>
3137 * doc/xml/manual/intro.xml: Include new section.
3138 * doc/xml/manual/status_cxx2017.xml: Document more
3139 implementation-defined properties of the library.
3140 * doc/xml/manual/status_cxx2020.xml: Document C++2a status.
3141 * doc/html/*: Regenerate.
3143 * include/bits/refwrap.h [__cplusplus > 201703L]
3144 (_Refwrap_base_arg1, _Refwrap_base_arg2, _Reference_wrapper_base)
3145 (_Reference_wrapper_base_memfun): Do not define for C++2a.
3146 (reference_wrapper): Do not derive from _Reference_wrapper_base_memfun
3148 (reference_wrapper::operator()): Add static assertion.
3149 * testsuite/20_util/reference_wrapper/incomplete.cc: New test.
3151 * include/std/chrono (duration_values::zero(), duration_values::min())
3152 (duration_values::max()): Add noexcept.
3153 (duration::zero(), duration::min(), duration::max()): Likewise.
3154 (time_point::zero(), time_point::min(), time_point::max()): Likewise.
3155 * testsuite/20_util/duration/requirements/noexcept.cc: New test.
3156 * testsuite/20_util/time_point/requirements/noexcept.cc: New test.
3158 * include/std/version (__cpp_lib_erase_if): Move to C++20 group.
3160 2019-01-11 Jakub Jelinek <jakub@redhat.com>
3162 * include/std/type_traits (__cpp_lib_is_constant_evaluated): Define.
3163 * include/std/version (__cpp_lib_is_constant_evaluated): Define.
3165 2019-01-11 Jonathan Wakely <jwakely@redhat.com>
3168 * include/bits/functional_hash.h (hash<nullptr_t>): Define
3169 specialization for C++17 (P0513R0, LWG 2817).
3170 * testsuite/20_util/hash/nullptr.cc: New test.
3173 * config/abi/pre/gnu.ver (GLIBCXX_3.4.6): Remove unused duplicate
3174 pattern for std::basic_stringbuf::str().
3176 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Correct recent changes to
3177 basic_ostream::operator<< patterns.
3179 2019-01-10 Jonathan Wakely <jwakely@redhat.com>
3181 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fix
3182 test failures on targets with 32-bit time_t.
3184 * include/bits/erase_if.h: Define __cpp_lib_erase_if.
3185 * include/std/deque: Likewise.
3186 * include/std/forward_list: Likewise.
3187 * include/std/list: Likewise.
3188 * include/std/string: Likewise.
3189 * include/std/vector: Likewise.
3190 * include/std/version: Likewise.
3191 * testsuite/21_strings/basic_string/erasure.cc: Test macro.
3192 * testsuite/23_containers/deque/erasure.cc: Likewise.
3193 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
3194 * testsuite/23_containers/list/erasure.cc: Likewise.
3195 * testsuite/23_containers/map/erasure.cc: Likewise.
3196 * testsuite/23_containers/set/erasure.cc: Likewise.
3197 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
3198 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
3199 * testsuite/23_containers/vector/erasure.cc: Likewise.
3201 * include/experimental/internet [AI_NUMERICSERV]
3202 (resolver_base::numeric_service): Define conditionally.
3203 * testsuite/experimental/net/internet/resolver/base.cc: Test it
3205 * testsuite/experimental/net/internet/resolver/ops/lookup.cc:
3208 2019-01-10 Ville Voutilainen <ville.voutilainen@gmail.com>
3209 Jonathan Wakely <jwakely@redhat.com>
3212 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten patterns.
3213 (GLIBCXX_3.4.26): Add new exports.
3214 * include/Makefile.am: Add ostream-inst.cc. Move string-inst.cc to
3215 correct list of sources.
3216 * include/Makefile.in: Regenerate.
3217 * include/std/ostream (operator<<(nullptr_t)): New member function.
3218 * src/c++17/ostream-inst.cc: New file.
3219 * testsuite/27_io/basic_ostream/inserters_other/char/lwg2221.cc: New
3222 2019-01-10 Jonathan Wakely <jwakely@redhat.com>
3224 * testsuite/util/testsuite_fs.h (nonexistent_path): Include name
3225 of the source file containing the caller.
3226 * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Remove
3227 directories created by test.
3228 * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
3230 * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
3232 * testsuite/experimental/filesystem/iterators/
3233 recursive_directory_iterator.cc: Likewise.
3235 2019-01-10 Jakub Jelinek <jakub@redhat.com>
3237 PR tree-optimization/88775
3238 * include/bits/stl_function.h (greater<_Tp*>::operator(),
3239 less<_Tp*>::operator(), greater_equal<_Tp*>::operator(),
3240 less_equal<_Tp*>::operator()): Use __builtin_is_constant_evaluated
3241 instead of __builtin_constant_p if available. Don't bother with
3242 the pointer comparison in C++11 and earlier.
3244 2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
3248 * include/ext/bitmap_allocator.h: Mechanically replace "can not"
3251 2019-01-09 Jonathan Wakely <jwakely@redhat.com>
3253 * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix expected output
3254 for filesystem::path. Give variables more distinctive names.
3256 * include/std/optional (_Optional_payload_base::_M_copy_assign): New
3257 member function to perform non-trivial assignment.
3258 (_Optional_payload_base::_M_move_assign): Likewise.
3259 (_Optional_payload<T, true, false, true>::operator=)
3260 (_Optional_payload<T, true, true, false>::operator=)
3261 (_Optional_payload<T, true, false, false>::operator=): Call
3262 _M_copy_assign and/or _M_move_assign to do non-trivial assignments.
3265 * testsuite/26_numerics/complex/operators/more_constexpr.cc: Do not
3266 test std::complex<long double> if long double format is IBM128.
3267 * testsuite/26_numerics/complex/requirements/more_constexpr.cc:
3270 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
3272 * testsuite/libstdc++-prettyprinters/compat.cc: Test printer support
3273 for old std::unique_ptr layout.
3274 * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix std::variant test
3275 to become valueless. Add filesystem::path tests.
3278 * include/std/optional (_Optional_payload_base): New class template
3279 for common code hoisted from _Optional_payload specializations. Use
3280 a template for the union, to allow a partial specialization for
3281 types with non-trivial destructors. Add constructors for in-place
3282 initialization to the union.
3283 (_Optional_payload(bool, const _Optional_payload&)): Use _M_construct
3284 to perform non-trivial copy construction, instead of relying on
3285 non-standard copy elision in a delegating constructor.
3286 (_Optional_payload(bool, _Optional_payload&&)): Likewise for
3287 non-trivial move construction.
3288 (_Optional_payload): Derive from _Optional_payload_base and use it
3289 for everything except the non-trivial assignment operators, which are
3291 (_Optional_payload<false, C, M>): Derive from the specialization
3292 _Optional_payload<true, false, false> and add a destructor.
3293 (_Optional_base_impl::_M_destruct, _Optional_base_impl::_M_reset):
3294 Forward to corresponding members of _Optional_payload.
3295 (_Optional_base_impl::_M_is_engaged, _Optional_base_impl::_M_get):
3296 Hoist common members from _Optional_base.
3297 (_Optional_base): Make all members and base class public.
3298 (_Optional_base::_M_get, _Optional_base::_M_is_engaged): Move to
3299 _Optional_base_impl.
3300 * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Add
3301 support for new std::optional layout.
3302 * testsuite/libstdc++-prettyprinters/compat.cc: New test.
3305 * include/bits/locale_conv.h: Use <> for includes not "".
3306 * include/ext/random: Likewise.
3307 * include/ext/vstring.h: Likewise.
3309 2019-01-08 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
3311 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten existing patterns.
3312 (GLIBCXX_3.4.21): Likewise.
3314 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
3317 * src/filesystem/ops.cc (last_write_time): Fix preprocessor condition
3318 to match the one that controls whether utimbuf and utime are declared.
3320 2019-01-07 Jonathan Wakely <jwakely@redhat.com>
3323 * include/bits/char_traits.h (char_traits::move): Do not pass null
3324 pointers to memmove.
3325 * include/bits/locale_facets.h
3326 (ctype<char>::widen(const char*, const char*, char*)): Do not
3327 pass null pointers to memcpy.
3328 (ctype<char>::narrow(const char*, const char*, char, char*)):
3330 (ctype<char>::do_widen(const char*, const char*, char*)):
3332 (ctype<char>::do_narrow(const char*, const char*, char, char*)):
3335 * doc/xml/manual/spine.xml: Update copyright years.
3336 * doc/xml/manual/status_cxx2017.xml: Adjust note about -lstdc++fs.
3337 * doc/xml/manual/using.xml: Remove requirement to link with -lstdc++fs
3338 for C++17 filesystem library.
3339 * doc/html/*: Regenerate.
3341 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for truncate.
3342 * config.h.in: Regenerate.
3343 * config/abi/pre/gnu.ver: Order patterns for filesystem operations
3344 alphabetically and add missing entries for copy_symlink,
3345 hard_link_count, rename, and resize_file.
3346 * configure: Regenerate.
3347 * src/c++17/fs_ops.cc (resize_file): Remove #if so posix::truncate is
3348 used unconditionally.
3349 * src/filesystem/ops-common.h (__gnu_posix::truncate)
3350 [!_GLIBCXX_HAVE_TRUNCATE]: Provide fallback definition that only
3351 supports truncating to zero length.
3352 * testsuite/27_io/filesystem/operations/all.cc: New test.
3353 * testsuite/27_io/filesystem/operations/resize_file.cc: New test.
3355 2019-01-06 Jonathan Wakely <jwakely@redhat.com>
3358 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for utime and
3359 lstat and define _GLIBCXX_USE_UTIME and _GLIBCXX_USE_LSTAT.
3360 * config.h.in: Regenerate.
3361 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export symbols for
3362 remaining std::filesystem types and functions.
3363 * configure: Regenerate.
3364 * src/c++17/Makefile.am: Add C++17 filesystem sources.
3365 * src/c++17/Makefile.in: Regenerate.
3366 * src/c++17/cow-fs_dir.cc: Move src/filesystem/cow-std-dir.cc to
3367 here, and change name of included file.
3368 * src/c++17/cow-fs_ops.cc: Move src/filesystem/cow-std-ops.cc to
3369 here, and change name of included file.
3370 * src/c++17/fs_dir.cc: Move src/filesystem/std-dir.cc to here. Change
3371 path to dir-common.h.
3372 * src/c++17/fs_ops.cc: Move src/filesystem/std-ops.cc to here. Change
3373 path to ops-common.h. Disable -Wunused-parameter warnings.
3374 (internal_file_clock): Define unconditionally.
3375 [!_GLIBCXX_HAVE_SYS_STAT_H] (internal_file_clock::from_stat): Do not
3377 (do_copy_file, do_space): Move definitions to ops.common.h.
3378 (copy, file_size, hard_link_count, last_write_time, space): Only
3379 perform operation when _GLIBCXX_HAVE_SYS_STAT_H is defined, otherwise
3381 (last_write_time, read_symlink): Remove unused attributes from
3383 * src/filesystem/Makefile.am: Remove C++17 filesystem sources.
3384 * src/filesystem/Makefile.in: Regenerate.
3385 * src/filesystem/cow-std-dir.cc: Move to src/c++17/cow-fs_dir.cc.
3386 * src/filesystem/cow-std-ops.cc: Move to src/c++17/cow-fs_ops.cc.
3387 * src/filesystem/std-dir.cc: Move to src/c++17/fs_dir.cc.
3388 * src/filesystem/std-ops.cc: Move to src/c++17/fs_ops.cc.
3389 * src/filesystem/dir-common.h [!_GLIBCXX_HAVE_DIRENT_H]: Define
3390 dummy types and functions instead of using #error.
3391 * src/filesystem/dir.cc [!_GLIBCXX_HAVE_DIRENT_H]: Use #error.
3392 * src/filesystem/ops-common.h [!_GLIBCXX_USE_LSTAT] (lstat): Define
3394 [!_GLIBCXX_HAVE_UNISTD_H]: Define dummy types and functions.
3395 (do_copy_file, do_space): Move definitions here from std-ops.cc.
3396 * src/filesystem/ops.cc: Adjust calls to do_copy_file and do_space
3397 to account for new namespace.
3398 * testsuite/27_io/filesystem/directory_entry/86597.cc: Remove
3399 -lstdc++fs from dg-options.
3400 * testsuite/27_io/filesystem/directory_entry/lwg3171.cc: Likewise.
3401 * testsuite/27_io/filesystem/file_status/1.cc: Likewise.
3402 * testsuite/27_io/filesystem/filesystem_error/cons.cc: Likewise.
3403 * testsuite/27_io/filesystem/filesystem_error/copy.cc: Likewise.
3404 * testsuite/27_io/filesystem/iterators/directory_iterator.cc:
3406 * testsuite/27_io/filesystem/iterators/pop.cc: Likewise.
3407 * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
3409 * testsuite/27_io/filesystem/operations/absolute.cc: Likewise.
3410 * testsuite/27_io/filesystem/operations/canonical.cc: Likewise.
3411 * testsuite/27_io/filesystem/operations/copy.cc: Likewise.
3412 * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
3413 * testsuite/27_io/filesystem/operations/create_directories.cc:
3415 * testsuite/27_io/filesystem/operations/create_directory.cc: Likewise.
3416 * testsuite/27_io/filesystem/operations/create_symlink.cc: Likewise.
3417 * testsuite/27_io/filesystem/operations/current_path.cc: Likewise.
3418 * testsuite/27_io/filesystem/operations/equivalent.cc: Likewise.
3419 * testsuite/27_io/filesystem/operations/exists.cc: Likewise.
3420 * testsuite/27_io/filesystem/operations/file_size.cc: Likewise.
3421 * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
3422 * testsuite/27_io/filesystem/operations/last_write_time.cc: Likewise.
3423 * testsuite/27_io/filesystem/operations/permissions.cc: Likewise.
3424 * testsuite/27_io/filesystem/operations/proximate.cc: Likewise.
3425 * testsuite/27_io/filesystem/operations/read_symlink.cc: Likewise.
3426 * testsuite/27_io/filesystem/operations/relative.cc: Likewise.
3427 * testsuite/27_io/filesystem/operations/remove.cc: Likewise.
3428 * testsuite/27_io/filesystem/operations/remove_all.cc: Likewise.
3429 * testsuite/27_io/filesystem/operations/space.cc: Likewise.
3430 * testsuite/27_io/filesystem/operations/status.cc: Likewise.
3431 * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
3432 * testsuite/27_io/filesystem/operations/temp_directory_path.cc:
3434 * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Likewise.
3438 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Make various patterns for
3439 typeinfo and vtables less greedy.
3440 (GLIBCXX_3.4.26): Export symbols for std::filesystem::path.
3441 * src/c++17/Makefile.am: Add fs_path.cc and cow-fs_path.cc.
3442 * src/c++17/Makefile.in: Regenerate.
3443 * src/c++17/cow-fs_path.cc: Move src/filesystem/cow-std-path.cc to
3444 here, and change name of included file.
3445 * src/c++17/fs_path.cc: Move src/filesystem/std-path.cc to here.
3446 * src/filesystem/Makefile.am: Remove std-path.cc and cow-std-path.cc
3448 * src/filesystem/Makefile.in: Regenerate.
3449 * src/filesystem/cow-std-path.cc: Move to src/c++17/cow-fs_path.cc.
3450 * src/filesystem/std-path.cc: Move to src/c++17/fs_path.cc.
3451 * testsuite/27_io/filesystem/path/append/path.cc: Remove -lstdc++fs
3452 from dg-options and remove dg-require-filesystem-ts.
3453 * testsuite/27_io/filesystem/path/append/source.cc: Likewise.
3454 * testsuite/27_io/filesystem/path/assign/assign.cc: Likewise.
3455 * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
3456 * testsuite/27_io/filesystem/path/compare/compare.cc: Likewise.
3457 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
3458 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
3459 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
3460 * testsuite/27_io/filesystem/path/concat/path.cc: Likewise.
3461 * testsuite/27_io/filesystem/path/concat/strings.cc: Likewise.
3462 * testsuite/27_io/filesystem/path/construct/80762.cc: Likewise.
3463 * testsuite/27_io/filesystem/path/construct/copy.cc: Likewise.
3464 * testsuite/27_io/filesystem/path/construct/default.cc: Likewise.
3465 * testsuite/27_io/filesystem/path/construct/format.cc: Likewise.
3466 * testsuite/27_io/filesystem/path/construct/locale.cc: Likewise.
3467 * testsuite/27_io/filesystem/path/construct/range.cc: Likewise.
3468 * testsuite/27_io/filesystem/path/construct/string_view.cc: Likewise.
3469 * testsuite/27_io/filesystem/path/decompose/extension.cc: Likewise.
3470 * testsuite/27_io/filesystem/path/decompose/filename.cc: Likewise.
3471 * testsuite/27_io/filesystem/path/decompose/parent_path.cc: Likewise.
3472 * testsuite/27_io/filesystem/path/decompose/relative_path.cc: Likewise.
3473 * testsuite/27_io/filesystem/path/decompose/root_directory.cc:
3475 * testsuite/27_io/filesystem/path/decompose/root_name.cc: Likewise.
3476 * testsuite/27_io/filesystem/path/decompose/root_path.cc: Likewise.
3477 * testsuite/27_io/filesystem/path/decompose/stem.cc: Likewise.
3478 * testsuite/27_io/filesystem/path/generation/normal.cc: Likewise.
3479 * testsuite/27_io/filesystem/path/generation/normal2.cc: Likewise.
3480 * testsuite/27_io/filesystem/path/generation/proximate.cc: Likewise.
3481 * testsuite/27_io/filesystem/path/generation/relative.cc: Likewise.
3482 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Likewise.
3483 * testsuite/27_io/filesystem/path/itr/components.cc: Likewise.
3484 * testsuite/27_io/filesystem/path/itr/traversal.cc: Likewise.
3485 * testsuite/27_io/filesystem/path/modifiers/clear.cc: Likewise.
3486 * testsuite/27_io/filesystem/path/modifiers/make_preferred.cc:
3488 * testsuite/27_io/filesystem/path/modifiers/remove_filename.cc:
3490 * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
3492 * testsuite/27_io/filesystem/path/modifiers/replace_filename.cc:
3494 * testsuite/27_io/filesystem/path/modifiers/swap.cc: Likewise.
3495 * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
3496 * testsuite/27_io/filesystem/path/nonmember/append.cc: Likewise.
3497 * testsuite/27_io/filesystem/path/nonmember/hash_value.cc: Likewise.
3498 * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
3499 * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
3500 * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
3501 * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
3502 * testsuite/27_io/filesystem/path/query/has_relative_path.cc: Likewise.
3503 * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
3505 * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
3506 * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
3507 * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
3508 * testsuite/27_io/filesystem/path/query/is_absolute.cc: Likewise.
3509 * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
3512 * include/std/variant (_Variant_storage<true, _Types...>::_M_valid):
3513 Check is_trivially_copyable instead of is_scalar.
3514 (variant::emplace<N, Args>(Args&&...)): If construction of the new
3515 contained value can throw and its type is trivially copyable then
3516 construct into a temporary variant and move from it, to provide the
3517 strong exception safety guarantee.
3518 (variant::emplace<N, U, Args>(initializer_list<U>, Args&&...)):
3520 * testsuite/20_util/variant/87431.cc: New test.
3521 * testsuite/20_util/variant/run.cc: Adjust test so that throwing
3522 conversion causes valueless state.
3525 * testsuite/17_intro/headers/c++1998/charset.cc: New test.
3526 * testsuite/17_intro/headers/c++2011/charset.cc: New test.
3527 * testsuite/17_intro/headers/c++2014/charset.cc: New test.
3528 * testsuite/17_intro/headers/c++2017/charset.cc: New test.
3529 * testsuite/17_intro/headers/c++2020/charset.cc: New test.
3531 2019-01-05 Jonathan Wakely <jwakely@redhat.com>
3533 * include/bits/fs_fwd.h (__file_clock): Define new clock.
3534 (file_time_type): Redefine in terms of __file_clock.
3535 * src/filesystem/ops-common.h (file_time): Add FIXME comment about
3537 * src/filesystem/std-ops.cc (is_set(perm_options, perm_options)): Give
3539 (internal_file_lock): New helper type for accessing __file_clock.
3540 (do_copy_file): Use internal_file_lock to convert system time to
3542 (last_write_time(const path&, error_code&)): Likewise.
3543 (last_write_time(const path&, file_time_type, error_code&)): Likewise.
3545 2019-01-04 Jonathan Wakely <jwakely@redhat.com>
3547 * config/abi/pre/gnu.ver (GLIBCXX_3.4.21): Make patterns less greedy
3548 for const member functions of std::basic_string.
3549 (GLIBCXX_3.4.26): Export member functions of std::basic_string added
3551 * include/bits/basic_string.h (basic_string(__sv_wrapper, const A&)):
3552 Make non-standard constructor private.
3553 [!_GLIBCXX_USE_CXX11_ABI] (basic_string(__sv_wrapper, const A&)):
3555 * include/bits/basic_string.tcc (std::string, std::wstring): Declare
3556 explicit instantiations for C++17 as well as earlier dialects.
3557 * src/c++17/Makefile.am: Add new source files.
3558 * src/c++17/Makefile.in: Regenerate.
3559 * src/c++17/cow-string-inst.cc: New file defining explicit
3560 instantiations for basic_string member functions added in C++17.
3561 * src/c++17/string-inst.cc: Likewise.
3563 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export allocator-extended
3564 copy/move constructors for old std::basic_string.
3565 * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
3566 (basic_string::reference, basic_string::const_reference): Define
3567 as plain references for C++11 and later.
3568 (basic_string::basic_string()): Put constructor body outside
3569 preprocessor conditional groups.
3570 (basic_string::basic_string(basic_string&&)): Move _Alloc_hider
3571 instead of copying it.
3572 (basic_string::basic_string(const basic_string&, const _Alloc&)):
3574 (basic_string::basic_string(basic_string&&, const _Alloc&)):
3576 * include/bits/fs_path.h [!_GLIBCXX_USE_CXX11_ABI]: Remove special
3577 cases for old basic_string.
3578 * testsuite/21_strings/basic_string/cons/char/8.cc: Test
3579 allocator-extended constructors unconditionally. Add extra members to
3580 allocator type when using old string ABI.
3581 * testsuite/21_strings/basic_string/allocator/71964.cc: Enable test
3583 * testsuite/21_strings/basic_string/cons/wchar_t/8.cc: Likewise.
3585 * testsuite/23_containers/list/61347.cc: Avoid spurious failure when
3586 -fno-inline added to test flags.
3588 * testsuite/21_strings/basic_string/requirements/
3589 explicit_instantiation/debug.cc: Remove XFAIL for old ABI.
3591 * testsuite/27_io/filesystem/filesystem_error/copy.cc: Fix static
3592 assertion failures with old std::string ABI.
3594 * include/bits/fs_path.h (path::_List::erase): Replace both overloads
3596 (path::pop_back(), path::_M_erase_from(const_iterator)): New member
3597 functions that will only erase elements at the end.
3598 * src/filesystem/std-path.cc (path::_List::_Impl::pop_back()): Define.
3599 (path::_List::_Impl::_M_erase_from(const_iterator)): Define.
3600 (path::_List::operator=(const _List&)): Use _M_erase_from(p) instead
3602 (path::_List::pop_back()): Define.
3603 (path::_List::_M_erase_from(const_iterator)): Define.
3604 (path::operator/=(const path&)): Use pop_back to remove last component
3605 and _M_erase_from to remove multiple components.
3606 (path::_M_append(basic_string_view<value_type>)): Likewise.
3607 (path::operator+=(const path&)): Likewise.
3608 (path::_M_concat(basic_string_view<value_type>)): Likewise.
3609 (path::remove_filename()): Likewise.
3610 (path::lexically_normal()): Use _List::_Impl iterators instead of
3611 path::iterator. Use pop_back to remove components from the end. Clear
3612 trailing filename, instead of using erase(const_iterator) to remove
3613 a non-final component.
3614 * testsuite/27_io/filesystem/path/generation/normal.cc: Test
3616 * testsuite/27_io/filesystem/path/generation/normal2.cc: New test.
3618 * src/filesystem/std-path.cc (path::operator+=(const path&)): Fix
3619 incorrect treatment of empty filename after trailing slash.
3620 * testsuite/27_io/filesystem/path/concat/path.cc: Test problem case.
3622 * testsuite/21_strings/basic_string/modifiers/assign/char/
3623 move_assign_optim.cc: Avoid spurious failure when -fno-inline added
3625 * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
3626 move_assign_optim.cc: Likewise.
3628 2019-01-03 Jonathan Wakely <jwakely@redhat.com>
3629 Jakub Jelinek <jakub@redhat.com>
3632 * include/experimental/memory: Replace UTF-8 quote characters.
3633 * include/std/future: Replace UTF-8 "em dash" characters.
3635 2019-01-03 Jonathan Wakely <jwakely@redhat.com>
3638 * include/bits/forward_list.h: Replace UTF-8 "ligature fi" character.
3639 * include/debug/forward_list: Likewise.
3640 * include/experimental/bits/shared_ptr.h: Remove UTF-8 "section sign"
3642 * include/experimental/chrono: Likewise.
3643 * include/experimental/functional: Likewise.
3644 * include/experimental/ratio: Likewise.
3645 * include/experimental/system_error: Likewise.
3646 * include/experimental/tuple: Likewise.
3647 * include/experimental/type_traits: Likewise.
3648 * include/parallel/workstealing.h: Replace UTF-8 "en dash" character.
3649 * include/parallel/multiseq_selection.h: Likewise.
3652 * config/abi/pre/gnu.ver: Add missing exports.
3653 * testsuite/22_locale/collate_byname/88681.cc: New test.
3654 * testsuite/22_locale/time_get/get/char/88681.cc: New test.
3655 * testsuite/22_locale/time_get/get/wchar_t/88681.cc: New test.
3657 2019-01-02 Jonathan Wakely <jwakely@redhat.com>
3659 * testsuite/23_containers/map/cons/deduction.cc: Test deduction from
3660 initializer_list<value_type> and from input iterator ranges.
3661 * testsuite/23_containers/multimap/cons/deduction.cc: Likewise.
3663 * testsuite/experimental/string_view/element_access/char/empty.cc:
3664 Fix year range in copyright header.
3666 2019-01-02 Joel Brobecker <brobecker@adacore.com>
3668 * testsuite/21_strings/basic_string_view/element_access/char/empty.cc:
3669 Fix year range in copyright header.
3671 2019-01-01 Jakub Jelinek <jakub@redhat.com>
3673 Update copyright years.
3675 Copyright (C) 2019 Free Software Foundation, Inc.
3677 Copying and distribution of this file, with or without modification,
3678 are permitted in any medium without royalty provided the copyright
3679 notice and this notice are preserved.