1 2019-05-29 Jonathan Wakely <jwakely@redhat.com>
3 * testsuite/util/testsuite_api.h: Remove names of unused parameters.
5 PR libstdc++/85494 use rdseed and rand_s in std::random_device
6 * acinclude.m4 (GLIBCXX_CHECK_X86_RDSEED): Define macro to check if
7 the assembler supports rdseed.
8 * config.h.in: Regenerate.
9 * configure: Regenerate.
10 * configure.ac: Use GLIBCXX_CHECK_X86_RDSEED.
11 * config/os/mingw32-w64/os_defines.h (_GLIBCXX_USE_CRT_RAND_S): Define.
12 * doc/html/*: Regenerate.
13 * doc/xml/manual/status_cxx2011.xml: Document new tokens.
14 * include/bits/random.h (random_device::random_device()): Always call
15 _M_init rather than _M_init_pretr1.
16 (random_device::random_device(const string&)): Likewise.
17 (random_device::operator()()): Always call _M_getval().
18 (random_device::_M_file): Replace first member of union with an
19 anonymous struct, with _M_file as its first member.
20 * src/c++11/random.cc [_GLIBCXX_X86_RDRAND] (USE_RDRAND): Define.
21 [_GLIBCXX_X86_RDSEED] (USE_RDSEED): Define.
22 (USE_MT19937): Define if none of the above are defined.
23 (USE_POSIX_FILE_IO): Define.
25 [USE_RDSEED] (__x86_rdseed): Define new function.
26 [_GLIBCXX_USE_CRT_RAND_S] (__winxp_rand_s): Define new function.
27 (random_device::_M_init(const string&)): Initialize new union members.
28 Add support for "rdseed" and "rand_s" tokens. Decide what the
29 "default" token does according to which USE_* macros are defined.
30 [USE_POSIX_FILE_IO]: Store a file descriptor.
31 [USE_MT19937]: Forward to _M_init_pretr1 instead.
32 (random_device::_M_init_pretr1(const string&)) [USE_MT19937]: Inline
34 [!USE_MT19937]: Call _M_init, transforming the old default token or
35 numeric tokens to "default".
36 (random_device::_M_fini()) [USE_POSIX_FILE_IO]: Use close not fclose.
37 (random_device::_M_getval()): Use new union members to obtain a
38 random number from the stored function pointer or file descriptor.
39 [USE_MT19937]: Obtain a value from the mt19937 engine.
40 (random_device::_M_getval_pretr1()): Call _M_getval().
41 (random_device::_M_getentropy()) [USE_POSIX_FILE_IO]: Use _M_fd
43 [!USE_MT19937] (mersenne_twister): Do not instantiate when not needed.
44 * testsuite/26_numerics/random/random_device/85494.cc: New test.
46 2019-05-28 Jonathan Wakely <jwakely@redhat.com>
49 * include/experimental/bits/fs_path.h (path::path(path&&)): Only call
50 _M_split_cmpts() for a path with multiple components.
51 (path::_S_is_dir_sep()): Add missing 'static' keyword to function.
52 * src/filesystem/path.cc (path::_M_split_cmpts()): Count number of
53 components and reserve space in vector. Return early when there is
55 * testsuite/27_io/filesystem/path/construct/90634.cc: New test.
56 * testsuite/experimental/filesystem/path/construct/90634.cc: New test.
58 * testsuite/util/testsuite_fs.h (compare_paths): Use three-argument
59 form of std::equals for C++11 compatibility.
61 2019-05-26 Gerald Pfeifer <gerald@pfeifer.com>
63 * doc/xml/manual/appendix_contributing.xml: Update pointer to
64 C++ standard at ansi.org.
66 2019-05-24 Jonathan Wakely <jwakely@redhat.com>
68 * include/std/numeric (midpoint(T*, T*)): Fix incorrect result.
69 * testsuite/26_numerics/midpoint/pointer.cc: Change "compile" test
72 * testsuite/20_util/shared_ptr/cons/alias-rval.cc: Fix test.
73 * testsuite/20_util/shared_ptr/cons/alias.cc: Remove unused function.
75 2019-05-23 Jonathan Wakely <jwakely@redhat.com>
77 * testsuite/20_util/function_objects/invoke/1.cc: Move C++17-specific
79 * testsuite/20_util/function_objects/invoke/3.cc: New test.
80 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Change
81 "compile" test to "run".
83 * doc/xml/manual/intro.xml: Document LWG DR 2996 change.
84 * doc/html/*: Regenerate.
85 * include/bits/shared_ptr.h (shared_ptr(shared_ptr&&, T*)): Add
86 rvalue aliasing constructor.
87 (static_pointer_cast, const_pointer, dynamic_pointer_cast)
88 (reinterpret_pointer_cast): Add overloads taking rvalues.
89 * include/bits/shared_ptr_base.h (__shared_ptr(__shared_ptr&&, T*)):
90 Add rvalue aliasing constructor.
91 * testsuite/20_util/shared_ptr/casts/1.cc: Change "compile" test to
92 "run" and check return values as well as types.
93 * testsuite/20_util/shared_ptr/casts/reinterpret.cc: Likewise.
94 * testsuite/20_util/shared_ptr/casts/rval.cc: New test.
95 * testsuite/20_util/shared_ptr/cons/alias-rval.cc: New test.
96 * testsuite/20_util/shared_ptr/cons/alias.cc: Remove unused return
99 * doc/xml/manual/evolution.xml: Document LWG DR 2921 change.
100 * doc/xml/manual/intro.xml: Likewise.
101 * include/std/future (__create_task_state): Add default arguments
102 to make providing an allocator optional.
103 (packaged_task::packaged_task(F&&)): Call __create_task_state directly
104 instead of delegating to another constructor.
105 (packaged_task::packaged_task(allocator_arg_t, const A&, ...)): Do not
106 define allocator-extended constructors for C++17 and later.
107 * testsuite/30_threads/packaged_task/cons/alloc.cc: Only run test for
109 * testsuite/30_threads/packaged_task/cons/alloc2.cc: Likewise.
110 * testsuite/30_threads/packaged_task/cons/alloc_min.cc: Likewise.
111 * testsuite/30_threads/packaged_task/uses_allocator.cc: Likewise.
113 2019-05-23 Hans-Peter Nilsson <hp@axis.com>
115 * testsuite/26_numerics/random/poisson_distribution/operators/values.cc:
116 Don't run the libstdc++/83237 part on simulator targets.
118 2019-05-23 Jonathan Wakely <jwakely@redhat.com>
120 * doc/xml/manual/status_cxx2017.xml: Add feature test macro for
122 * doc/html/*: Regenerate.
124 * include/experimental/any (__any_caster): Use RTTI if comparing
125 addresses fails, to support non-unique addresses in shared libraries.
126 * include/std/any (__any_caster): Likewise.
129 * include/experimental/any (__any_caster): Constrain to only be
130 callable for object types. Use remove_cv_t instead of decay_t.
131 If the type decays or isn't copy constructible, compare the manager
132 function to a dummy specialization.
133 (__any_caster): Add overload constrained for non-object types.
134 (any::_Manager_internal<_Op>): Add dummy specialization.
135 * testsuite/experimental/any/misc/any_cast.cc: Test function types
138 2019-05-22 Jonathan Wakely <jwakely@redhat.com>
141 * src/c++17/fs_path.cc (path::_List::operator=(const _List&)): Fix
142 reversed arguments to uninitialized_copy_n.
143 * testsuite/27_io/filesystem/path/assign/copy.cc: Check that source
144 is unchanged by copy assignment.
145 * testsuite/util/testsuite_fs.h (compare_paths): Use std::equal to
146 compare path components.
149 * include/experimental/memory_resource: Add system header pragma and
150 do not define anything unless compiled as C++14 or later.
151 (__resource_adaptor_common::__guaranteed_alignment): Remove.
152 (__resource_adaptor_imp::do_allocate): If the requested alignment
153 is a fundamental alignment then either allocate directly from _M_alloc
154 or call the new _M_allocate function.
155 (__resource_adaptor_imp::do_deallocate): Likewise for deallocation.
156 (__resource_adaptor_imp::_M_allocate): New function that uses a copy
157 of the allocator rebound to a POD type with the specified alignment.
158 (__resource_adaptor_imp::_M_deallocate): Likewise for deallocation.
159 * testsuite/experimental/memory_resource/new_delete_resource.cc:
160 Adjust expected allocation sizes.
161 * testsuite/experimental/memory_resource/resource_adaptor.cc: Remove
162 xfail for Solaris x86.
164 2019-05-21 Thomas Rodgers <trodgers@redhat.com>
166 LWG 3062 - Unnecessary decay_t in is_execution_policy_v
167 * include/pstl/execution_defs.h (__enable_if_execution_policy):
168 Use std::__remove_cvref_t when building with GCC.
170 2019-05-21 Jonathan Wakely <jwakely@redhat.com>
173 * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
174 Use "additional_flags" to pass -ltbb to v3_target_compile command.
175 Use check_v3_target_prop_cached to cache the result of the test.
177 * doc/xml/manual/shared_ptr.xml: Fix names of lock policy constants.
179 2019-05-20 Thomas Rodgers <trodgers@redhat.com>
182 * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
183 Changed v3_target_compile check from preprocess to executable.
184 Added "-ltbb" to v3_target_compile flags.
186 2019-05-20 Thomas Rodgers <trodgers@redhat.com>
188 * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend):
189 Add check for Thread Building Blocks 2018 or later.
191 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
193 * testsuite/experimental/names.cc: Only include Networking TS headers
194 on targets with the necessary Gthreads support.
196 2019-05-20 Marek Polacek <polacek@redhat.com>
198 CWG 2094 - volatile scalars are trivially copyable.
200 * testsuite/20_util/is_trivially_copyable/value.cc: Change the expected
201 result for volatile int.
203 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
205 * testsuite/17_intro/names.cc: Do not check 'ptr' on Solaris.
206 * testsuite/experimental/names.cc: Include <experimental/filesystem>
209 PR c++/90532 Ensure __is_constructible(T[]) is false
210 * include/std/type_traits (__do_is_default_constructible_impl)
211 (__is_default_constructible_atom, __is_default_constructible_safe):
213 (is_default_constructible): Use is_constructible.
214 * testsuite/20_util/is_constructible/value.cc: Check int[] case.
215 * testsuite/20_util/is_default_constructible/value.cc: Likewise.
216 * testsuite/20_util/is_trivially_constructible/value.cc: Likewise.
217 * testsuite/20_util/is_trivially_default_constructible/value.cc:
220 2019-05-20 Pádraig Brady <pbrady@fb.com>
222 * libstdc++-v3/include/ext/new_allocator.h (deallocate): Pass the size
223 to the deallocator with -fsized-deallocation.
225 2019-05-20 Jonathan Wakely <jwakely@redhat.com>
227 * testsuite/experimental/memory_resource/new_delete_resource.cc: Fix
228 test by passing correct alignment to deallocate function.
230 2019-05-18 Jonathan Wakely <jwakely@redhat.com>
233 * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__):
234 Raise exception if unique_ptr tuple member has unknown structure.
235 * python/libstdcxx/v6/xmethods.py (UniquePtrGetWorker.__call__):
236 Adjust worker to support new __uniq_ptr_data base class. Do not
237 assume field called _M_head_impl is the first tuple element.
239 2019-05-17 François Dumont <fdumont@gcc.gnu.org>
241 * include/bits/stl_deque.h
242 (_Deque_iterator<>::__ptr_to): Remove, use std::__ptr_rebind.
243 (_Deque_base(_Deque_base&&, const allocator_type&)): New.
244 (_Deque_base::_Deque_impl_data): New.
245 (_Deque_base::_Deque_impl): Inherit latter.
246 (_Deque_base::_Deque_impl::_M_swap_data): Move...
247 (_Deque_base::_Deque_impl_data::_M_swap_data): ... here.
248 (_Deque_base::_Deque_impl()): Add noexcept qualification.
249 (_Deque_base::_Deque_impl(_Deque_impl&&, _Tp_alloc_type&&)): New.
250 (_Deque_base::_Deque_impl::_M_get_Tp_allocator()): Remove static_cast.
251 (deque<>::deque()): Default.
252 (deque<>::deque(deque&&)): Default.
253 (deque<>::deque(deque&&, const allocator_type&, false_type)): New.
254 (deque<>::deque(deque&&, const allocator_type&, true_type)): New.
255 (deque<>::deque(deque&&, const allocator_type&)): Delegate to latters.
256 (deque<>::deque<_It>(_It, _It, const allocator_type&)): Use
258 (deque<>::assign<_It>(_It, _It)): Use _M_assign_aux.
259 (deque<>::resize(size_type, const value_type&)): Share a single
261 (deque<>::insert<_It>(const_iterator, _It, _It)): Use
263 [__cplusplus >= 201103L](_M_initialize_dispatch): Remove.
264 [__cplusplus >= 201103L](_M_assign_dispatch): Remove.
265 [__cplusplus >= 201103L](_M_insert_dispatch): Remove.
266 * testsuite/23_containers/deque/allocator/default_init.cc: New.
268 2019-05-17 Jonathan Wakely <jwakely@redhat.com>
271 * include/std/variant (holds_alternative, get, get_if): Improve
272 static assertion messages.
273 (bad_variant_access::bad_variant_access()): Change default message.
274 (__throw_bad_variant_access(bool)): New overload.
275 (get): Use new overload.
276 (visit, visit<R>): Improve exception message.
278 * testsuite/20_util/variant/compile.cc: Fix narrowing test for ILP32
279 targets. Add more cases from P0608R3.
280 * testsuite/20_util/variant/run.cc: Add more cases from P0608R3.
282 * include/bits/random.h (seed_seq::param): Fix non-reserved name.
283 * include/experimental/type_traits (is_detected_exact)
284 (is_detected_exact_v): Likewise.
285 * include/pstl/execution_defs.h (is_execution_policy)
286 (is_execution_policy_v, __enable_if_execution_policy): Likewise.
287 * include/pstl/execution_impl.h (__policy_traits): Likewise.
288 * testsuite/17_intro/names.cc: Check for more non-reserved names.
289 * testsuite/experimental/names.cc: New test.
292 * include/bits/hashtable.h (_Hashtable::~_Hashtable()): Remove static
293 assertions from the destructor.
294 * include/bits/hashtable_policy.h (_Hash_code_base::_M_hash_code):
295 Move static_assert for hash function to here.
296 (_Hash_table_base::_M_equals): Move static_assert for equality
298 * include/bits/stl_tree.h (_Rb_tree::_S_value(_Const_Link_type)):
300 (_Rb_tree::_S_key(_Const_Link_type)): Move assertions here. Access
301 the value directly instead of calling _S_value.
302 (_Rb_tree::_S_value(_Const_Base_ptr)): Remove.
303 (_Rb_tree::_S_key(_Const_Base_ptr)): Do downcast and forward to
304 _S_key(_Const_Link_type).
305 * testsuite/23_containers/set/85965.cc: Check construction,
306 destruction, assignment and size() do not trigger the assertions.
307 * testsuite/23_containers/unordered_set/85965.cc: Likewise.
308 * testsuite/23_containers/map/48101_neg.cc: Call find and adjust
310 * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
311 * testsuite/23_containers/multiset/48101_neg.cc: Likewise.
312 * testsuite/23_containers/set/48101_neg.cc: Likewise.
313 * testsuite/23_containers/unordered_map/48101_neg.cc: Likewise.
314 * testsuite/23_containers/unordered_multimap/48101_neg.cc: Likewise.
315 * testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise.
316 * testsuite/23_containers/unordered_set/48101_neg.cc: Likewise.
318 * include/bits/invoke.h [__cplusplus < 201703L] (__invoke_r<void>):
319 Use _GLIBCXX14_CONSTEXPR because void functions cannot be constexpr
322 * doc/xml/manual/status_cxx2020.xml: Update P0608R3, P0777R1, and
324 * doc/html/*: Regenerate.
325 * include/std/tuple (make_from_tuple): Use remove_reference_t instead
326 of decay_t (P0777R1).
328 2019-05-17 François Dumont <fdumont@gcc.gnu.org>
330 Move from state of allocators (LWG2593)
331 * include/bits/stl_deque.h
332 (_Deque_base(_Deque_base&&, false_type)): Remove.
333 (_Deque_base(_Deque_base&&, true_type)): Remove.
334 (_Deque_base(_Deque_base&&)): Adapt.
335 (_Deque_base::_M_move_impl()): Remove.
336 * testsuite/util/testsuite_allocator.h
337 (propagating_allocator(propagating_allocator&&)): Preserve move from
339 * testsuite/23_containers/deque/allocator/move_assign.cc (test02):
341 * testsuite/23_containers/forward_list/allocator/move_assign.cc (test02):
343 * testsuite/23_containers/list/allocator/move_assign.cc (test02): Adapt.
344 * testsuite/23_containers/map/allocator/move_assign.cc (test02): Adapt.
345 * testsuite/23_containers/multimap/allocator/move_assign.cc (test02):
347 * testsuite/23_containers/multiset/allocator/move_assign.cc (test02):
349 * testsuite/23_containers/set/allocator/move_assign.cc (test02): Adapt.
350 * testsuite/23_containers/unordered_map/allocator/move_assign.cc
352 * testsuite/23_containers/unordered_multimap/allocator/move_assign.cc
354 * testsuite/23_containers/unordered_multiset/allocator/move_assign.cc
356 * testsuite/23_containers/unordered_set/allocator/move_assign.cc
358 * testsuite/23_containers/vector/allocator/move_assign.cc (test02):
360 * testsuite/23_containers/vector/bool/allocator/move_assign.cc (test02):
362 * testsuite/21_strings/basic_string/allocator/char/move_assign.cc
364 * testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc
367 2019-05-16 Jonathan Wakely <jwakely@redhat.com>
369 * src/c++17/fs_ops.cc (absolute(const path&, error_code&))
370 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Remove bogus assertion.
372 * include/std/variant (__overload_set): Remove.
374 (_Build_FUN): New class template to define a single FUN overload,
375 with specializations to prevent unwanted conversions, as per P0608R3.
376 (_Build_FUNs): New class template to build an overload set of FUN.
377 (_FUN_type): New alias template to perform overload resolution.
378 (__accepted_type): Use integer_constant base for failure case. Use
379 _FUN_type for successful case.
380 (variant::__accepted_index): Use _Tp instead of _Tp&&.
381 (variant::variant(_Tp&&)): Likewise.
382 (variant::operator=(_Tp&&)): Likewise.
384 * include/std/variant (_Variant_storage<false, _Types...>::_M_reset):
385 Replace raw visitation with a runtime check for the valueless state
386 and a non-raw visitor.
387 (_Variant_storage<false, _Types...>::_M_reset_impl): Remove.
388 (variant::index()): Remove branch.
389 (variant::swap(variant&)): Use valueless_by_exception() instead of
390 comparing the index to variant_npos, and add likelihood attribute.
392 * include/bits/hashtable_policy.h (_Equal_helper): Remove.
393 (_Hashtable_base::_Equal_hash_code): Define new class template.
394 (_Hashtable_base::_M_equals): Use _Equal_hash_code instead of
397 * include/bits/hashtable_policy.h (_Hashtable_ebo_helper::_S_get):
398 Replace with _M_get non-static member function.
399 (_Hashtable_ebo_helper::_S_cget): Replace with _M_cget non-static
401 (_Hash_code_base, _Local_iterator_base, _Hashtable_base):
402 (_Hashtable_alloc): Adjust to use non-static members of EBO helper.
404 * include/bits/hashtable_policy.h (_Hash_code_base::_M_swap): Use
405 _S_get accessors for members in EBO helpers.
406 (_Hash_code_base::_M_extract(), _Hash_code_base::_M_ranged_hash())
407 (_Hash_code_base::_M_h1(), _Hash_code_base::_M_h2()): Remove non-const
409 (_Hashtable_base::_M_swap): Use _S_get accessors for members in EBO
411 (_Hashtable_base::_M_eq()): Remove non-const overload.
413 2019-05-15 Jonathan Wakely <jwakely@redhat.com>
415 * include/std/variant (visit, visit<R>): Qualify calls to __do_visit.
417 2019-05-14 Jonathan Wakely <jwakely@redhat.com>
419 * testsuite/util/testsuite_allocator.h (NullablePointer::operator bool):
422 2019-05-14 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
424 * config/os/solaris/solaris2.10: Move to ...
425 * config/os/solaris: ... this.
426 * configure.host (os_include_dir): Adapt.
427 (abi_baseline_pair): Remove Solaris 10 handling.
428 * config/abi/post/i386-solaris2.10: Remove.
429 * config/abi/post/sparc-solaris2.10: Remove.
430 * config/abi/post/i386-solaris2.11: Rename to ...
431 * config/abi/post/i386-solaris: ... this.
432 * config/abi/post/sparc-solaris2.11: Rename to ...
433 * config/abi/post/sparc-solaris: ... this.
435 * libsupc++/new_opa.cc [_GLIBCXX_HAVE_MEMALIGN] [__sun]: Remove
438 * testsuite/ext/enc_filebuf/char/13598.cc: Remove *-*-solaris2.10
441 2019-05-14 Jonathan Wakely <jwakely@redhat.com>
443 * include/std/variant (__visit_with_index): Remove typedef.
444 (__deduce_visit_result): New tag type.
445 (__raw_visit, __raw_idx_visit): New helper functions for "raw"
446 visitation of possibly-valueless variants, forwarding to __do_visit
447 with the relevant tag type.
448 (_Variant_storage<false, _Types...>::_M_reset_impl): Use __raw_visit
449 and make lambda return void.
450 (__variant_construct): Likewise.
451 (_Copy_assign_base::operator=, _Move_assign_base::operator=): Use
452 __raw_idx_visit and make lambda return void.
453 (_Multi_array::__untag_result): Add metafunction to check the function
454 pointer type for a tag type that dictates the kind of visitation.
455 (_Multi_array<_Ret(*)(_Visitor, _Variants...), __first, __rest...>):
456 Use decltype(auto) instead of tagged function pointer type.
457 (__gen_vtable_impl): Remove bool non-type parameter and unused
458 _Variant_tuple parameter.
459 (__gen_vtable_impl::__visit_invoke_impl): Remove.
460 (__gen_vtable_impl::__do_visit_invoke): Remove.
461 (__gen_vtable_impl::__do_visit_invoke_r): Remove.
462 (__gen_vtable_impl::__visit_invoke): Use if-constexpr and __invoke_r
463 for the visit<R> case, rather than dispatching to separate functions.
464 (_VARIANT_RELATION_FUNCTION_TEMPLATE): Use __raw_idx_visit and make
466 (variant::swap): Likewise.
467 (__do_visit): Replace two non-type template parameters with a single
468 type parameter, so that the caller must specify the visitor's return
469 type (or one of the tag types).
470 (visit): Deduce a return type from the visitor and use the
471 __deduce_visit_result tag to enforce that all overloads return the
473 (visit<R>): Call __do_visit<R> with explicit result type.
474 (__variant_hash_call_base_impl::operator()): Use __raw_visit and make
477 2019-05-14 Nina Dinka Ranns <dinka.ranns@gmail.com>
479 nonesuch is insufficiently useless (lwg2996)
480 * include/std/type_traits (struct __nonesuch): Added private base
481 class to make __nonesuch not an aggregate and removed deleted default
483 * include/bits/stl_pair.h (struct __nonesuch_no_braces): Removed.
484 (operator=(const pair&)): Use __nonesuch instead of
485 __nonesuch_no_braces.
486 (operator=(pair&&)): Likewise
487 * include/std/tuple (operator=(const tuple&)): Use __nonesuch instead
488 of __nonesuch_no_braces.
489 (operator=(tuple&&)): Likewise
490 * include/experimental/type_traits (struct nonesuch): Added private
491 base class to make nonesuch not an aggregate and removed deleted
493 * testsuite/20_util/nonesuch/nonesuch.cc: New.
494 * testsuite/experimental/type_traits/nonesuch.cc: New.
496 2019-05-14 Jonathan Wakely <jwakely@redhat.com>
498 * include/bits/std_function.h (_Simple_type_wrapper): Remove.
499 (_Function_handler): Remove partial specializations for void return
500 types and pointers to member.
501 (_Function_handler::_M_manager): Adapt to removal of
502 _Simple_type_wrapper.
503 (_Function_handler::_M_invoke): Use __invoke_r instead of __invoke.
504 * include/std/functional (_Bind_result::__enable_if_void)
505 (_Bind_result::__disable_if_void): Remove sfinae helpers.
506 (_Bind_result::__call): Use __invoke_r and remove overloads for void
508 * include/std/future (__future_base::_Task_state::_M_run)
509 (__future_base::_Task_state::_M_run_delayed): Use __invoke_r and
510 change return type of lambda expressions.
512 * include/bits/invoke.h (__invoke_r): Define new function implementing
513 the INVOKE<R> pseudo-function.
514 * testsuite/20_util/function_objects/invoke/1.cc: Add more tests.
515 * testsuite/20_util/function_objects/invoke/2.cc: New test.
517 * include/std/type_traits (__is_nt_convertible_helper): Define it
518 unconditionally, not only for C++20.
519 (__is_nothrow_convertible): Define internal trait for use in C++11.
520 (__is_nt_invocable_impl: Fix by using __is_nothrow_convertible.
521 (is_invocable_r_v, is_nothrow_invocable_r_v): Add missing parameter.
522 * testsuite/20_util/is_nothrow_convertible/value_ext.cc: New test.
523 * testsuite/20_util/is_nothrow_convertible/value.cc: Check with type
524 that has nothrow explicit conversion but potentially-throwing implicit
526 * testsuite/20_util/is_nothrow_invocable/value.cc: Likewise.
527 * testsuite/20_util/is_nothrow_invocable/value_ext.cc: Fix helper
528 function to only consider implicit conversions.
529 * testsuite/20_util/tuple/cons/noexcept_specs.cc: Add comment.
531 * include/std/iterator: Include <iosfwd> instead of <istream> and
534 * include/bits/stl_tree.h (_Rb_tree::erase(const Key*, const Key*)):
535 Remove unused, non-standard function.
537 * include/bits/regex.h (match_results::max_size()): Adjust return
538 value to account for prefix/suffix/unmatched subs.
539 (match_results::_M_resize(unsigned int)): Use _Base_type::assign to
540 reset the contained sub matches.
541 (match_results::_M_establish_failed_match(_Bi_iter)): Add new member
542 function to set result state following a failed match.
543 * include/bits/regex.tcc (__regex_algo_impl): Remove loop to set
544 sub_match states after _M_resize. Use _M_establish_failed_match.
547 * include/std/thread (thread::_State_impl, thread::_S_make_state):
548 Replace single _Callable parameter with variadic _Args pack, to
549 forward them directly to the tuple of decayed copies.
550 * testsuite/30_threads/thread/cons/69724.cc: New test.
552 2019-05-14 Nina Dinka Ranns <dinka.ranns@gmail.com>
554 Inconsistency wrt Allocators in basic_string assignment (LWG2579)
555 * include/bits/basic_string.h: (operator=(const basic_string&):
556 Move allocator decision to assign.
557 (assign(const basic_string&)): Move allocator decision here.
558 * testsuite/21_strings/basic_string/allocator/char/copy_assign.cc:
560 * testsuite/21_strings/basic_string/allocator/wchar_t/copy_assign.cc:
563 2019-05-14 Jonathan Wakely <jwakely@redhat.com>
565 * testsuite/util/testsuite_allocator.h (memory_resource)
566 (default_resource_mgr): Fix indentation.
568 * testsuite/20_util/allocator_traits/members/allocate_hint_nonpod.cc:
569 Use operator-> to access raw pointer member.
570 * testsuite/23_containers/vector/59829.cc: Likewise.
571 * testsuite/23_containers/vector/bool/80893.cc: Likewise.
572 * testsuite/libstdc++-prettyprinters/cxx11.cc: Use NullablePointer.
573 * testsuite/util/testsuite_allocator.h (NullablePointer): New utility
575 (PointerBase, PointerBase_void): Derive from NullablePointer and use
576 its constructors and equality operators. Change converting
577 constructors to use operator-> to access private member of the other
579 (PointerBase_void::operator->()): Add, for access to private member.
580 (operator-(PointerBase, PointerBase)): Change to hidden friend.
581 (operator==(PointerBase, PointerBase)): Remove.
582 (operator!=(PointerBase, PointerBase)): Remove.
584 * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__): Do
585 not assume field called _M_head_impl is the first tuple element.
586 * testsuite/libstdc++-prettyprinters/compat.cc: Make tuple
587 implementation more accurate.
588 * testsuite/libstdc++-prettyprinters/cxx11.cc: Check unique_ptr with
589 empty pointer type and non-empty deleter.
591 LWG 2899 - Make is_move_constructible correct for unique_ptr
592 * include/bits/unique_ptr.h (__uniq_ptr_impl): Add move constructor,
593 move assignment operator.
594 (__uniq_ptr_impl::release(), __uniq_ptr_impl::reset(pointer)): Add.
595 (__uniq_ptr_data): New class template with conditionally deleted
597 (unique_ptr, unique_ptr<T[], D>): Change type of data member from
598 __uniq_ptr_impl<T, D> to __uniq_ptr_data<T, D>. Define move
599 constructor and move assignment operator as defaulted.
600 (unique_ptr::release(), unique_ptr<T[], D>::release()): Forward to
601 __uniq_ptr_impl::release().
602 (unique_ptr::reset(pointer), unique_ptr<T[], D>::reset<U>(U)): Forward
603 to __uniq_ptr_impl::reset(pointer).
604 * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__):
605 Check for new __uniq_ptr_data type.
606 * testsuite/20_util/unique_ptr/dr2899.cc: New test.
608 2019-05-13 Jonathan Wakely <jwakely@redhat.com>
610 PR libstdc++/90454.cc path construction from void*
611 * include/bits/fs_path.h (path::_Path): Use remove_pointer so that
612 pointers to void are rejected as well as void.
613 * include/experimental/bits/fs_path.h (path::_Path): Likewise.
614 * testsuite/27_io/filesystem/path/construct/80762.cc: Also check
616 * testsuite/experimental/filesystem/path/construct/80762.cc: Likewise.
618 * doc/xml/manual/policy_data_structures.xml: Comment out stray
619 <remark> elements. Fix formatting of bibliography references.
621 2019-05-13 Edward Smith-Rowland <3dw4rd@verizon.net>
623 * doc/xml/manual/status_cxx2020.xml: Document P0811R3 status.
625 2019-05-13 Jonathan Wakely <jwakely@redhat.com>
627 Remove Profile Mode, deprecated since 7.1.0
628 * doc/Makefile.am: Remove XML file for profile mode docs.
629 * doc/Makefile.in: Regenerate.
630 * doc/xml/authors.xml: Remove authors of profile mode docs.
631 * doc/xml/manual/appendix_contributing.xml: Remove mention of profile
633 * doc/xml/manual/debug.xml: Likewise.
634 * doc/xml/manual/evolution.xml: Document removal of profile mode.
635 * doc/xml/manual/profile_mode.xml: Remove profile mode docs.
636 * doc/xml/manual/spine.xml: Remove profile mode author credit.
637 * doc/xml/manual/test.xml: Remove docs for dg-require-profile-mode
639 * doc/xml/manual/using.xml: Remove docs for profile mode headers and
641 * doc/html/*: Regenerate.
642 * include/Makefile.am: Remove profile mode headers.
643 * include/Makefile.in: Regenerate.
644 * include/bits/c++config (std::__profile): Remove namespace.
645 [_GLIBCXX_PROFILE]: Remove checks for macro.
646 * include/profile/array: Remove.
647 * include/profile/base.h: Remove.
648 * include/profile/bitset: Remove.
649 * include/profile/deque: Remove.
650 * include/profile/forward_list: Remove.
651 * include/profile/impl/profiler.h: Remove.
652 * include/profile/impl/profiler_algos.h: Remove.
653 * include/profile/impl/profiler_container_size.h: Remove.
654 * include/profile/impl/profiler_hash_func.h: Remove.
655 * include/profile/impl/profiler_hashtable_size.h: Remove.
656 * include/profile/impl/profiler_list_to_slist.h: Remove.
657 * include/profile/impl/profiler_list_to_vector.h: Remove.
658 * include/profile/impl/profiler_map_to_unordered_map.h: Remove.
659 * include/profile/impl/profiler_node.h: Remove.
660 * include/profile/impl/profiler_state.h: Remove.
661 * include/profile/impl/profiler_trace.h: Remove.
662 * include/profile/impl/profiler_vector_size.h: Remove.
663 * include/profile/impl/profiler_vector_to_list.h: Remove.
664 * include/profile/iterator_tracker.h: Remove.
665 * include/profile/list: Remove.
666 * include/profile/map: Remove.
667 * include/profile/map.h: Remove.
668 * include/profile/multimap.h: Remove.
669 * include/profile/multiset.h: Remove.
670 * include/profile/ordered_base.h: Remove.
671 * include/profile/set: Remove.
672 * include/profile/set.h: Remove.
673 * include/profile/unordered_base.h: Remove.
674 * include/profile/unordered_map: Remove.
675 * include/profile/unordered_set: Remove.
676 * include/profile/vector: Remove.
677 * scripts/run_doxygen: Do not process profile mode headers.
678 * testsuite/23_containers/array/element_access/60497.cc: Don't use
680 * testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc:
681 Remove dg-skip-if for profile mode.
682 * testsuite/23_containers/forward_list/capacity/1.cc: Remove
683 preprocessor check for profile mode.
684 * testsuite/23_containers/list/capacity/29134.cc: Likewise.
685 * testsuite/23_containers/map/modifiers/extract.cc: Remove dg-skip-if
687 * testsuite/23_containers/map/modifiers/insert_or_assign/1.cc:
689 * testsuite/23_containers/map/modifiers/try_emplace/1.cc: Likewise.
690 * testsuite/23_containers/multimap/modifiers/extract.cc: Likewise.
691 * testsuite/23_containers/multiset/modifiers/extract.cc: Likewise.
692 * testsuite/23_containers/set/modifiers/extract.cc: Likewise.
693 * testsuite/23_containers/unordered_map/modifiers/extract.cc:
695 * testsuite/23_containers/unordered_multimap/modifiers/extract.cc:
697 * testsuite/23_containers/unordered_multiset/modifiers/extract.cc:
699 * testsuite/23_containers/unordered_set/modifiers/extract.cc:
701 * testsuite/23_containers/vector/bool/capacity/29134.cc: Remove
702 preprocessor check for profile mode.
703 * testsuite/23_containers/vector/bool/modifiers/insert/31370.cc:
705 * testsuite/23_containers/vector/modifiers/insert_vs_emplace.cc:
706 Remove dg-skip-if for profile mode.
707 * testsuite/25_algorithms/binary_search/partitioned.cc: Likewise.
708 * testsuite/25_algorithms/equal_range/partitioned.cc: Likewise.
709 * testsuite/25_algorithms/lexicographical_compare/71545.cc: Likewise.
710 * testsuite/25_algorithms/lower_bound/partitioned.cc: Likewise.
711 * testsuite/25_algorithms/upper_bound/partitioned.cc: Likewise.
712 * testsuite/Makefile.am: Remove profile_flags variable and
713 * testsuite/Makefile.am: Remove profile_flags variable and
714 check-profile target.
715 * testsuite/Makefile.in: Regenerate.
716 * testsuite/ext/profile/all.cc: Remove.
717 * testsuite/ext/profile/mutex_extensions_neg.cc: Remove.
718 * testsuite/ext/profile/profiler_algos.cc: Remove.
719 * testsuite/ext/profile/replace_new.cc: Remove.
720 * testsuite/ext/throw_allocator/deallocate_global.cc: Remove
721 preprocessor check for profile mode.
722 * testsuite/ext/throw_allocator/deallocate_local.cc: Likewise.
723 * testsuite/lib/libstdc++.exp (check_v3_target_profile_mode): Remove.
724 (check_v3_target_normal_mode): Do not check for profile mode macro.
725 * testsuite/libstdc++-prettyprinters/80276.cc: Remove dg-skip-if for
727 * testsuite/libstdc++-prettyprinters/compat.cc: Likewise.
728 * testsuite/libstdc++-prettyprinters/cxx11.cc: Likewise.
729 * testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
730 * testsuite/libstdc++-prettyprinters/debug.cc: Likewise.
731 * testsuite/libstdc++-prettyprinters/debug_cxx11.cc: Likewise.
732 * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
733 * testsuite/libstdc++-prettyprinters/simple.cc: Likewise.
734 * testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
735 * testsuite/libstdc++-prettyprinters/whatis.cc: Likewise.
736 * testsuite/libstdc++-prettyprinters/whatis2.cc: Likewise.
738 Remove array_allocator extension, deprecated since 4.9.0
739 * doc/xml/manual/allocator.xml: Remove documentation for
741 * doc/xml/manual/evolution.xml: Document array_allocator removal.
742 * doc/xml/manual/using.xml: Remove header from documentation.
743 * include/Makefile.am: Remove <ext/array_allocator.h> header.
744 * include/Makefile.in: Regenerate.
745 * include/ext/array_allocator.h: Remove.
746 * include/precompiled/extc++.h: Do not include removed header.
747 * testsuite/ext/array_allocator/1.cc: Remove.
748 * testsuite/ext/array_allocator/2.cc: Remove.
749 * testsuite/ext/array_allocator/26875.cc: Remove.
750 * testsuite/ext/array_allocator/3.cc: Remove.
751 * testsuite/ext/array_allocator/check_deallocate_null.cc: Remove.
752 * testsuite/ext/array_allocator/check_delete.cc: Remove.
753 * testsuite/ext/array_allocator/check_new.cc: Remove.
754 * testsuite/ext/array_allocator/variadic_construct.cc: Remove.
755 * testsuite/ext/headers.cc: Do not include removed header.
757 2019-05-11 François Dumont <fdumont@gcc.gnu.org>
759 * include/bits/stl_bvector.h
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 (operator-(const _Bit_iterator_base&, const _Bit_iterator_base&)):
774 (_Bit_iterator::operator+(difference_type)): Likewise and allow NRVO
776 (_Bit_iterator::operator-(difference_type)): Likewise.
777 (operator+(ptrdiff_t, const _Bit_iterator&)): Make hidden friend.
778 (_Bit_const_iterator::operator+(difference_type)): Likewise and allow
780 (_Bit_const_iterator::operator-(difference_type)): Likewise.
781 (operator+(ptrdiff_t, const _Bit_const_iterator&)): Make hidden friend.
783 2019-05-10 Jonathan Wakely <jwakely@redhat.com>
786 * testsuite/util/thread/all.h: Do not use remove_pointer for
787 std::thread::native_handle_type.
790 * include/std/variant (_Variant_storage<false, Types...>::_M_storage())
791 (_Variant_storage<true, Types...>::_M_reset()))
792 (_Variant_storage<true, Types...>::_M_storage())): Add noexcept.
793 (__get_storage): Likewise.
794 (variant): Add noexcept to friend declarations for __get and
798 * include/bits/unique_ptr.h (default_delete, default_delete<T[]>):
799 Use _Require for constraints.
800 (operator>(nullptr_t, const unique_ptr<T,D>&)): Implement exactly as
802 (__uniq_ptr_hash): New base class with conditionally-disabled call
804 (hash<unique_ptr<T,D>>): Derive from __uniq_ptr_hash.
805 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
806 * testsuite/20_util/unique_ptr/hash/90388.cc: New test.
808 * include/bits/shared_ptr.h: Improve docs.
809 * include/bits/shared_ptr_base.h: Likewise.
810 * include/bits/stl_uninitialized.h: Likewise.
811 * include/bits/unique_ptr.h: Likewise.
812 * libsupc++/new: Likewise.
814 2019-05-09 François Dumont <fdumont@gcc.gnu.org>
816 * include/bits/stl_deque.h
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 (operator>=(const _Deque_iterator<>&, const _Deque_iterator<>&)):
829 (_Deque_iterator<>::operator+(difference_type)): Likewise and allow NRVO
831 (_Deque_iterator<>::operator-(difference_type)): Likewise.
833 2019-05-08 François Dumont <fdumont@gcc.gnu.org>
836 * testsuite/23_containers/unordered_multiset/insert/24061-multiset.cc
837 (test01): Reserve for number of insertions to avoid rehash during test.
838 * testsuite/23_containers/unordered_multimap/insert/24061-multimap.cc
840 * testsuite/23_containers/unordered_multimap/insert/24061-multimap.cc
845 2019-05-08 Jonathan Wakely <jwakely@redhat.com>
847 * include/experimental/bits/fs_path.h: Improve docs.
848 * include/experimental/bits/net.h: Fix wrong header name in comment.
849 Do not document implementation details.
850 * include/experimental/netfwd: Fix doxygen grouping.
852 2019-05-07 Jonathan Wakely <jwakely@redhat.com>
854 * include/bits/stl_pair.h: Improve docs.
855 * include/std/tuple: Likewise.
857 * doc/doxygen/doxygroups.cc (std::literals): Add documentation for
859 * include/std/chrono: Improve docs.
860 * include/std/ratio: Do not document implementation details.
861 * testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Adjust dg-error
863 * testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Likewise.
866 * doc/xml/manual/intro.xml: Document DR 2408 and 2465 changes.
867 * include/std/chrono (__duration_common_type_wrapper): Replace with ...
868 (__duration_common_type): New helper.
869 (common_type<chrono::duration<R1, P2>, chrono::duration<R2, P2>>): Use
870 __duration_common_type.
871 (__timepoint_common_type_wrapper): Replace with ...
872 (__timepoint_common_type): New helper.
873 (common_type<chrono::time_point<C, D2>, chrono::time_point<C, D2>>):
874 Use __time_point_common_type.
875 * include/std/type_traits (common_type<>): Define, as per LWG 2408.
876 (__common_type_impl): If either argument is transformed by decay,
877 use the common_type of the decayed types.
878 (__common_type_impl<_Tp, _Up, _Tp, _Up>): If the types are already
879 decayed, use __do_common_type_impl to get the common_type.
880 (common_type<_Tp>): Use common_type<_Tp, _Tp>.
881 (__do_member_type_wrapper, __member_type_wrapper)
882 (__expanded_common_type_wrapper): Remove.
883 (__common_type_pack, __common_type_fold): New helpers.
884 (common_type<_Tp, _Up, _Vp...>): Use new helpers instead of
885 __member_type_wrapper and __expanded_common_type_wrapper.
886 * testsuite/20_util/common_type/requirements/explicit_instantiation.cc:
887 Test zero-length template argument list.
888 * testsuite/20_util/common_type/requirements/sfinae_friendly_1.cc:
889 Test single argument cases and argument types that should decay.
890 * testsuite/20_util/common_type/requirements/sfinae_friendly_2.cc:
891 Adjust expected error.
892 * testsuite/20_util/duration/literals/range_neg.cc: Use zero for
894 * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
895 * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
896 * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
898 * doc/xml/manual/intro.xml: Fix DR 2537 and DR 2566 confusion.
900 2019-05-01 Nina Dinka Ranns <dinka.ranns@gmail.com>
902 Make allocator propagation more consistent for
903 operator+(basic_string) (P1165R1)
904 * include/bits/basic_string.h
905 (operator+(basic_string&&, basic_string&&): Changed resulting
906 allocator to always be the one from the first parameter.
907 * include/bits/basic_string.tcc
908 (operator+(const _CharT*, const basic_string&)): Changed
909 resulting allocator to be SOCCC on the second parameter's allocator.
910 (operator+(_CharT, const basic_string&)): Likewise.
911 * testsuite/21_strings/basic_string/allocator/char/operator_plus.cc:
913 * testsuite/21_strings/basic_string/allocator/wchar_t/operator_plus.cc:
916 2019-05-07 Jonathan Wakely <jwakely@redhat.com>
918 * include/bits/regex.h: Improve docs.
919 * include/bits/regex.tcc: Do not document implementation details.
921 * testsuite/19_diagnostics/error_code/hash.cc: New test.
923 2019-05-06 François Dumont <fdumont@gcc.gnu.org>
925 * python/libstdcxx/v6/printers.py (add_one_template_type_printer):
926 Add type printer for container types in std::__debug namespace.
927 * testsuite/lib/gdb-test.exp (whatis-regexp-test): New.
928 (gdb-tests): Use distinct parameters for the type of test and use of
930 (gdb-test): Check for regex test even if 'whatis' test.
931 * testsuite/libstdc++-prettyprinters/80276.cc: Adapt for _GLIBCXX_DEBUG
933 * testsuite/libstdc++-prettyprinters/cxx11.cc: Likewise.
934 * testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
935 * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
936 * testsuite/libstdc++-prettyprinters/simple.cc: Likewise.
937 * testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
938 * testsuite/libstdc++-prettyprinters/whatis.cc: Likewise.
939 * testsuite/libstdc++-prettyprinters/whatis2.cc: Likewise.
941 2019-05-04 Jonathan Wakely <jwakely@redhat.com>
943 * include/std/system_error (error_category): Fix comment.
946 * src/c++17/fs_ops.cc (absolute(const path&)): Report an error if the
947 argument is an empty path.
948 (absolute(const path&, error_code&)): Use invalid_argument as error
949 code instead of no_such_file_or_directory.
950 * testsuite/27_io/filesystem/operations/absolute.cc: Check handling
951 of non-existent paths and empty paths with both overloads of absolute.
953 * include/std/system_error (error_category, error_code)
954 (error_condition): Improve docs.
955 * libsupc++/exception: Add missing @addtogroup Doxygen command.
956 * libsupc++/exception_ptr.h (exception_ptr): Link equality operators
957 to class documentation. Suppress documentation for implementation
959 * libsupc++/nested_exception.h (throw_with_nested, rethrow_if_nested):
960 Suppress documentation for implementation details.
962 * include/std/system_error (error_code): Remove friend declaration
963 for hash<error_code>.
964 (hash<error_code>::operator()): Use public member functions to access
966 (hash<error_condition>::operator()): Use address of category, not
967 its object representation.
968 * src/c++11/compatibility-c++0x.cc (hash<error_code>::operator()):
969 Use public member functions to access value and category.
970 * testsuite/19_diagnostics/error_condition/hash.cc: New test.
972 2019-05-04 François Dumont <fdumont@gcc.gnu.org>
974 * include/bits/hashtable.h (_Hashtable<>::rehash): Review comment.
975 * include/bits/hashtable_policy.h
976 (_Prime_rehash_policy::_M_bkt_for_elements): Use __builtin_ceill.
977 (_Power2_rehash_policy::_M_bkt_for_elements): Likewise.
978 (_Power2_rehash_policy::_M_next_bkt): Enforce returning a result not
979 smaller than input value rather than always greater. Preserve
980 _M_next_resize if called with 0 input. Use __builtin_floorl.
981 (_Power2_rehash_policy::_M_need_rehash): Rehash only if number of
982 elements + number of insertions is greater than _M_next_resize. Start
983 with 11 buckets if not told otherwise. Use __builtin_floorl.
984 (_Rehash_base<>::reserve): Use rehash policy _M_bkt_for_elements.
985 * src/c++11/hashtable_c++0x.cc (_Prime_rehash_policy::_M_next_bkt):
986 Preserve _M_next_resize if called with 0 input. Use __builtin_floorl.
987 (_Prime_rehash_policy::_M_need_rehash): Start with 11 buckets if not
988 told otherwise. Use __builtin_floorl.
989 * testsuite/23_containers/unordered_set/hash_policy/71181.cc: Adapt test
990 to also validate _Power2_rehash_policy.
991 * testsuite/23_containers/unordered_set/hash_policy/power2_rehash.cc:
994 2019-05-03 Jonathan Wakely <jwakely@redhat.com>
997 * testsuite/26_numerics/complex/proj.cc: Don't assume <cmath> defines
1001 * include/ext/numeric_traits.h (__glibcxx_min): Avoid integer
1002 overflow warning with -Wpedantic -Wsystem-headers.
1004 2019-05-02 Jonathan Wakely <jwakely@redhat.com>
1007 * include/bits/c++config (_GLIBCXX_NOEXCEPT_IF): Use variadic macro.
1008 * include/bits/move.h (swap): Remove extra parentheses.
1010 * include/experimental/bits/lfts_config.h: Improve doc markup.
1011 * include/experimental/optional: Improve docs.
1012 (_Has_addressof_mem, _Has_addressof_free, _Has_addressof)
1013 (__constexpr_addressof): Remove.
1014 (optional::operator->()): Use std::__addressof().
1015 * include/std/optional (optional::operator->()): Adjust whitespace.
1016 * testsuite/experimental/optional/constexpr/observers/2.cc: Check
1017 that operator-> is still constexpr with overloaded operator&. Change
1018 to compile-only test.
1019 * testsuite/experimental/optional/constexpr/observers/3.cc: Change to
1022 * include/bits/shared_ptr.h: Improve docs.
1023 * include/bits/shared_ptr_atomic.h: Likewise.
1024 * include/bits/unique_ptr.h: Likewise. Adjust whitespace.
1026 * include/bits/basic_string.h: Fix iterator/index confusion in
1028 * include/bits/range_access.h: Fix Doxygen warnings.
1029 * include/bits/refwrap.h: Do not document implementation details.
1030 (ref, cref): Group docs with reference_wrapper.
1031 * include/std/fstream: Fix Doxygen markup.
1032 * libsupc++/initializer_list (begin, end): Group docs with
1035 * doc/doxygen/user.cfg.in: Set MARKDOWN_SUPPORT=YES.
1037 * include/bits/unique_lock.h: Fix/improve doxygen markup.
1038 * include/std/mutex: Likewise.
1039 * include/std/shared_mutex: Likewise.
1041 * include/bits/fs_dir.h: Fix/improve doxygen markup.
1042 * include/bits/fs_fwd.h: Likewise.
1043 * include/bits/fs_ops.h: Likewise.
1044 * include/bits/fs_path.h: Likewise.
1045 * include/std/filesystem: Likewise.
1047 * include/experimental/bits/net.h: Fix/improve doxygen markup.
1048 * include/experimental/buffer: Likewise.
1049 * include/experimental/executor: Likewise.
1050 * include/experimental/internet: Likewise.
1051 * include/experimental/io_context: Likewise.
1052 * include/experimental/net: Likewise.
1053 * include/experimental/netfwd: Likewise.
1054 * include/experimental/socket: Likewise.
1055 * include/experimental/timer: Likewise.
1057 * doc/doxygen/doxygroups.cc: Move description of experimental group
1059 * include/experimental/algorithm: Add to libfund-ts doc group.
1060 * include/experimental/any: Likewise. Do not document implementation
1062 * include/experimental/array: Add to libfund-ts doc group.
1063 * include/experimental/bits/lfts_config.h: Define libfund-ts doc group
1064 for Library Fundamentals.
1065 * include/experimental/chrono: Add to libfund-ts doc group.
1066 * include/experimental/deque: Likewise.
1067 * include/experimental/forward_list: Likewise.
1068 * include/experimental/functional: Likewise.
1069 * include/experimental/iterator: Likewise.
1070 * include/experimental/list: Likewise.
1071 * include/experimental/map: Likewise.
1072 * include/experimental/memory: Likewise.
1073 * include/experimental/memory_resource: Likewise. Improve docs.
1075 * include/experimental/numeric: Add to libfund-ts doc group.
1076 * include/experimental/optional: Likewise.
1077 * include/experimental/propagate_const: Likewise.
1078 * include/experimental/random: Likewise.
1079 * include/experimental/ratio: Likewise.
1080 * include/experimental/regex: Likewise.
1081 * include/experimental/set: Likewise.
1082 * include/experimental/source_location: Likewise.
1083 * include/experimental/string: Likewise.
1084 * include/experimental/string_view: Likewise.
1085 * include/experimental/system_error: Likewise.
1086 * include/experimental/tuple: Likewise.
1087 * include/experimental/type_traits: Likewise.
1088 * include/experimental/unordered_map: Likewise.
1089 * include/experimental/unordered_set: Likewise.
1090 * include/experimental/utility: Likewise.
1091 * include/experimental/vector: Likewise.
1092 * testsuite/experimental/any/misc/any_cast_neg.cc: Adjust dg-error.
1093 * testsuite/experimental/array/neg.cc: Adjust dg-error.
1094 * testsuite/experimental/propagate_const/assignment/move_neg.cc:
1096 * testsuite/experimental/propagate_const/cons/move_neg.cc: Likewise.
1097 * testsuite/experimental/propagate_const/requirements2.cc: Likewise.
1098 * testsuite/experimental/propagate_const/requirements3.cc: Likewise.
1099 * testsuite/experimental/propagate_const/requirements4.cc: Likewise.
1100 * testsuite/experimental/propagate_const/requirements5.cc: Likewise.
1102 * include/experimental/bits/fs_dir.h: Fix Doxygen markup.
1103 * include/experimental/bits/fs_fwd.h: Improve docs.
1104 * include/experimental/bits/fs_ops.h: fix Doxygen markup.
1105 * include/experimental/bits/fs_path.h: Likewise.
1106 (path, filesystem_error, u8path): Improve docs.
1107 * include/experimental/filesystem: Link to docs for TS.
1109 * config/allocator/new_allocator_base.h (__allocator_base): Add
1110 workaround for Doxygen bug #6945.
1111 * include/std/memory: Improve docs. Define group for pointer safety.
1112 * include/std/scoped_allocator: Improve docs. Use "undocumented"
1113 conditional to suppress documentation for implementation details.
1115 * include/bits/specfun.h: Improve docs.
1116 * include/tr1/cmath: Likewise. Fix nesting of preprocessor conditions
1119 * doc/doxygen/doxygroups.cc (std::tr2, std::__gnu_cxx): Improve docs.
1120 (std::experimental): Add docs.
1121 * doc/doxygen/user.cfg.in (PREDEFINED): Expand macros for __cxx11
1122 namespace to nothing when generating docs.
1123 * include/bits/regex_constants.h (std::regex_constants): Improve docs.
1124 * include/std/chrono (std::chrono): Likewise.
1125 * include/std/functional (std::placeholders): Likewise.
1126 * include/std/thread (std::this_thread): Likewise.
1128 * include/parallel/settings.h: Fix Doxygen markup.
1130 * include/ext/pb_ds/detail/bin_search_tree_/*_imps.hpp: Do not define
1131 anything unless PB_DS_CLASS_C_DEC is defined.
1132 * include/ext/pb_ds/detail/binary_heap_/*_imps.hpp: Likewise.
1133 * include/ext/pb_ds/detail/binomial_heap_/*_imps.hpp: Likewise.
1134 * include/ext/pb_ds/detail/binomial_heap_base_/*_imps.hpp: Likewise.
1135 * include/ext/pb_ds/detail/cc_hash_table_map_/*_imps.hpp: Likewise.
1136 * include/ext/pb_ds/detail/gp_hash_table_map_/*_imps.hpp: Likewise.
1137 * include/ext/pb_ds/detail/hash_fn/*_imp.hpp: Likewise.
1138 * include/ext/pb_ds/detail/left_child_next_sibling_heap_/*_imps.hpp:
1140 * include/ext/pb_ds/detail/list_update_map_/*_imps.hpp: Likewise.
1141 * include/ext/pb_ds/detail/ov_tree_map_/*_imps.hpp: Likewise.
1142 * include/ext/pb_ds/detail/pairing_heap_/*_imps.hpp: Likewise.
1143 * include/ext/pb_ds/detail/pat_trie_/*_imps.hpp: Likewise.
1144 * include/ext/pb_ds/detail/rb_tree_map_/*_imps.hpp: Likewise.
1145 * include/ext/pb_ds/detail/rc_binomial_heap_/*_imps.hpp: Likewise.
1146 * include/ext/pb_ds/detail/resize_policy*_imp.hpp: Likewise.
1147 * include/ext/pb_ds/detail/splay_tree_/*_imps.hpp: Likewise.
1148 * include/ext/pb_ds/detail/thin_heap_/*_imps.hpp: Likewise.
1149 * include/ext/pb_ds/detail/trie_policy*_imp.hpp: Likewise.
1150 * include/ext/pb_ds/detail/unordered_iterator/const_iterator.hpp:
1152 * include/ext/pb_ds/detail/unordered_iterator/iterator.hpp: Likewise.
1153 * include/ext/pb_ds/detail/unordered_iterator/point_const_iterator.hpp:
1155 * include/ext/pb_ds/detail/unordered_iterator/point_iterator.hpp:
1158 * doc/doxygen/user.cfg.in: Regenerate with Doxygen 1.8.14 and set
1159 GROUP_NESTED_COMPOUNDS=YES and SORT_BY_SCOPE_NAME=NO. Add various
1160 _GLIBCXX_xxx macros and __attribute__(X) to PREDEFINED macros that
1163 2019-05-01 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
1165 * config/abi/post/i386-solaris2.10/baseline_symbols.txt: Regenerate.
1166 * config/abi/post/i386-solaris2.10/amd64/baseline_symbols.txt: Likewise.
1167 * config/abi/post/i386-solaris2.11/baseline_symbols.txt: Likewise.
1168 * config/abi/post/i386-solaris2.11/amd64/baseline_symbols.txt: Likewise.
1169 * config/abi/post/sparc-solaris2.10/baseline_symbols.txt: Likewise.
1170 * config/abi/post/sparc-solaris2.10/sparcv9/baseline_symbols.txt:
1172 * config/abi/post/sparc-solaris2.11/baseline_symbols.txt: Likewise.
1173 * config/abi/post/sparc-solaris2.11/sparcv9/baseline_symbols.txt:
1176 2019-05-01 Jonathan Wakely <jwakely@redhat.com>
1179 * include/std/complex (__complex_proj): Return parameter unchanged.
1180 [_GLIBCXX_USE_C99_COMPLEX] (__complex_proj): Change overloads for
1181 floating-point types to take std::complex arguments.
1182 [_GLIBCXX_USE_C99_MATH_TR1] (__complex_proj): Add overloads for
1183 floating-point types.
1184 * testsuite/26_numerics/complex/proj.cc: New test.
1186 2019-04-30 Jakub Jelinek <jakub@redhat.com>
1188 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Change _Lock_policyE2 exports
1189 to _Lock_policyE[012].
1190 * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
1192 2019-04-30 Jonathan Wakely <jwakely@redhat.com>
1194 * testsuite/27_io/filesystem/path/decompose/root_path.cc: Remove
1195 macros accidentally left in.
1196 * testsuite/27_io/filesystem/path/native/string-char8_t.cc: Remove
1197 unnecessary -lstdc++fs option. Fix test for mingw.
1198 * testsuite/experimental/filesystem/path/native/string-char8_t.cc:
1201 2019-04-30 Jakub Jelinek <jakub@redhat.com>
1203 * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
1205 2019-04-29 Jonathan Wakely <jwakely@redhat.com>
1207 * include/bits/stl_algo.h (generate_n): Adjust doxygen comment.
1209 * include/bits/move.h (swap(T&, T&), swap(T (&)[N], T (&)[N])): Use
1210 _GLIBCXX_NOEXCEPT_IF to simplify declarations.
1213 * src/c++11/shared_ptr.cc (get_mutex): Align pool mutexes to 64 bytes.
1215 * include/bits/stl_bvector.h (vector<bool>::empty()): Add nodiscard
1218 * include/bits/stl_iterator_base_types.h (_Iter_base): Remove unused
1219 class template and partial specialization.
1222 * include/bits/stl_algo.h (generate_n): Convert _Size parameter to
1224 * include/bits/stl_algobase.h (__size_to_integer): New overloaded
1225 functions to convert a value to an integral type.
1226 (__fill_n_a, __fill_n_a): Assert that __n is already an integral type.
1227 (fill_n): Convert _Size parameter to an integral type.
1228 * testsuite/25_algorithms/fill_n/87982.cc: New test.
1229 * testsuite/25_algorithms/fill_n/87982_neg.cc: New test.
1230 * testsuite/25_algorithms/fill_n/dr426.cc: New test.
1231 * testsuite/25_algorithms/generate_n/87982.cc: New test.
1232 * testsuite/25_algorithms/generate_n/87982_neg.cc: New test.
1233 * testsuite/25_algorithms/generate_n/dr426.cc: New test.
1235 2019-04-28 Nina Dinka Ranns <dinka.ranns@gmail.com>
1237 Adding noexcept-specification on tuple constructors (LWG 2899)
1238 * libstdc++-v3/include/std/tuple:
1239 (tuple()): Add noexcept-specification.
1240 (tuple(const _Elements&...)): Likewise
1241 (tuple(_UElements&&...)): Likewise
1242 (tuple(const tuple<_UElements...>&)): Likewise
1243 (tuple(tuple<_UElements...>&&)): Likewise
1244 (tuple(const _T1&, const _T2&)): Likewise
1245 (tuple(_U1&&, _U2&&)): Likewise
1246 (tuple(const tuple<_U1, _U2>&): Likewise
1247 (tuple(tuple<_U1, _U2>&&): Likewise
1248 (tuple(const pair<_U1, _U2>&): Likewise
1249 (tuple(pair<_U1, _U2>&&): Likewise
1250 * libstdc++-v3/testsuite/20_util/tuple/cons/noexcept_specs.cc: New
1252 2019-04-27 Marc Glisse <marc.glisse@inria.fr>
1255 * include/bits/stl_uninitialized.h (__relocate_object_a): Mark the
1256 arguments with __restrict.
1258 2019-04-26 H.J. Lu <hongjiu.lu@intel.com>
1260 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
1262 2019-04-26 Jonathan Wakely <jwakely@redhat.com>
1264 * include/experimental/bits/fs_path.h
1265 (path::_S_convert_loc<_InputIterator>): Create const std::string to
1266 avoid redundant call to _S_convert_loc with non-const pointers.
1268 * testsuite/20_util/variant/run.cc: Use a new Hashable type to test
1269 hashing, because pmr::string depends on _GLIBCXX_USE_CXX11_ABI==1.
1270 * testsuite/21_strings/basic_string/hash/hash.cc
1271 [!_GLIBCXX_USE_CXX11_ABI]: Don't test pmr strings.
1272 * testsuite/21_strings/basic_string/hash/hash_char8_t.cc
1273 [!_GLIBCXX_USE_CXX11_ABI]: Likewise.
1275 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace wildcard that matches
1276 wstring::_M_replace_dispatch with more specific patterns.
1277 * include/bits/fs_path.h (path::_S_convert_loc<_InputIterator>):
1278 Create const std::string to avoid redundant call to _S_convert_loc
1279 with non-const pointers.
1280 * include/bits/locale_conv.h (__do_str_codecvt): Use if-constexpr to
1281 avoid unnecessary basic_string::assign instantiations.
1283 * include/std/memory (__uses_alloc_args): Add string-literal to
1284 static_assert, to match the one in __uses_alloc.
1285 [__cpp_concepts] (_Std_pair): Use C++2a syntax for concept.
1286 * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc: Check
1287 for recursive uses-allocator construction of nested pairs.
1288 * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc:: Add
1291 2019-04-26 Jakub Jelinek <jakub@redhat.com>
1293 * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Update.
1294 * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update.
1295 * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update.
1296 * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: Update.
1298 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1299 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
1300 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
1301 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
1302 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1303 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1304 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1306 2019-04-25 Jonathan Wakely <jwakely@redhat.com>
1309 * doc/xml/manual/status_cxx2020.xml: Amend P0591R4 status.
1310 * include/std/scoped_allocator [__cplusplus > 201703L]
1311 (scoped_allocator_adaptor::construct): Define in terms of
1312 uses_allocator_construction_args, as per P0591R4.
1313 * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc: New test.
1314 * testsuite/util/testsuite_allocator.h: Remove name of unused
1317 2019-04-24 Jonathan Wakely <jwakely@redhat.com>
1319 * doc/xml/manual/status_cxx2017.xml: Document P0024R2 status.
1320 * doc/html/*: Regenerate.
1322 * include/bits/fs_path.h (operator<, operator<=, operator>)
1323 (operator>=, operator==, operator!=): Make hidden friends, as per
1325 * testsuite/27_io/filesystem/path/native/string-char8_t.cc: Fix
1326 string type in test.
1327 * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
1329 * include/std/any (any::any(ValueType&&)): Use __and_v.
1330 * include/std/numeric (midpoint(T, T, T), midpoint(T*, T*, T*)):
1333 * include/std/tuple (apply): Use remove_reference_t instead of decay_t
1335 * include/std/type_traits (__result_of_memfun): Use remove_reference
1336 instead of __remove_cvref_t and remove redundant is_same check.
1337 (__inv_unwrap): Use __remove_cvref_t instead of decay_t.
1339 * include/experimental/string_view (basic_string_view::pointer)
1340 (basic_string_view::reference): Fix to refer to non-const value_type.
1341 * include/bits/basic_string.h (basic_string): Use __sv_check and
1342 __sv_limit instead of basic_string_view::_M_check and
1343 basic_string_view::_M_limit.
1344 * include/std/string_view (__sv_check, __sv_limit): New
1345 helper functions to replace basic_string_view::_M_check and
1346 basic_string_view::_M_limit.
1347 (basic_string_view): Add static assertions to enforce ill-formed
1348 requirement for traits_type::char_type from P1148R0, and to enforce
1349 required properties of char-like types.
1350 (basic_string_view::pointer, basic_string_view::reference): Fix to
1351 refer to non-const value_type.
1352 (basic_string_view::operator[], basic_string_view::at)
1353 (basic_string_view::front, basic_string_view::back)
1354 (basic_string_view::data): Use const_reference and const_pointer
1355 typedefs for return types.
1356 (basic_string_view::_M_check, basic_string_view::_M_limit): Remove.
1357 (hash<wstring_view>): Fix argument_type typedef.
1358 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
1359 char/1.cc: Fix expected return type of basic_string_view::data().
1360 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/
1361 wchar_t/1.cc: Likewise.
1362 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
1363 char/1.cc: Likewise.
1364 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/
1365 wchar_t/1.cc: Likewise.
1366 * testsuite/21_strings/basic_string_view/requirements/traits_neg.cc:
1368 * testsuite/21_strings/basic_string_view/requirements/typedefs.cc:
1369 Check reference and pointer typedefs.
1370 * testsuite/experimental/string_view/requirements/typedefs.cc:
1372 * testsuite/experimental/string_view/modifiers/remove_prefix/char/1.cc:
1373 Fix expected return type of basic_string_view::data().
1374 * testsuite/experimental/string_view/modifiers/remove_prefix/wchar_t/
1376 * testsuite/experimental/string_view/modifiers/remove_suffix/char/1.cc:
1378 * testsuite/experimental/string_view/modifiers/remove_suffix/wchar_t/
1382 * include/std/any (__any_caster): Use remove_cv_t instead of decay_t.
1383 Avoid a runtime check for types that can never be stored in std::any.
1384 * testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with
1387 PR libstdc++/90220 (partial)
1388 * include/std/any (any_cast<T>(any*), any_cast<T>(const any*)): Do
1389 not attempt ill-formed static_cast to pointers to non-object types.
1390 * testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with
1393 * testsuite/20_util/variant/run.cc: Catch exception by reference to
1394 prevent -Wcatch-value warning.
1396 * include/std/variant (__variant_construct): Use template parameter
1397 type instead of equivalent decltype-specifier.
1398 (_Move_ctor_base<false, Types...>::_Move_ctor_base(_Move_ctor_base&&)):
1399 Replace forward with move.
1400 (_Move_ctor_base<false, Types...>::_M_destructive_move)
1401 (_Move_ctor_base<false, Types...>::_M_destructive_copy)
1402 (_Move_ctor_base<true, Types...>::_M_destructive_move)
1403 (_Move_ctor_base<true, Types...>::_M_destructive_copy): Only set the
1404 index after construction succeeds.
1405 (_Copy_assign_base<false, Types...>::operator=): Remove redundant
1406 if-constexpr checks that are always true. Use __remove_cvref_t instead
1407 of remove_reference so that is_nothrow_move_constructible check
1408 doesn't use a const rvalue parameter. In the potentially-throwing case
1409 construct a temporary and move assign it, as per LWG 2904.
1410 (_Move_assign_base<false, Types...>::operator=): Remove redundant
1411 if-constexpr checks that are always true. Use emplace as per LWG 2904.
1412 (variant::operator=(T&&)): Only use emplace conditionally, otherwise
1413 construct a temporary and move assign from it, as per LWG 2904.
1414 * testsuite/20_util/variant/exception_safety.cc: Check that
1415 assignment operators have strong exception safety guarantee.
1417 2019-04-23 Thomas Rodgers <trodgers@redhat.com>
1419 Document PSTL linker flags
1421 * doc/xml/manual/using.xml: Add PSTL linker flags to table 3.1.
1423 2019-04-23 Jonathan Wakely <jwakely@redhat.com>
1425 * include/std/variant (__detail::__variant::_Traits): Make
1426 _S_trivial_copy_assign depend on _S_trivial_copy_ctor and make
1427 _S_trivial_move_assign depend on _S_trivial_move_ctor, as per
1429 (__detail::__variant::_Copy_assign_alias): Only depend on
1430 _S_trivial_copy_assign, which subsumes _S_trivial_copy_ctor now.
1431 * testsuite/20_util/variant/compile.cc: Correct checks for trivial
1432 move assignment operators.
1435 * include/std/variant (variant::__not_self): New helper for the
1436 is_same_v<remove_cvref_t<T>, variant>==false constraints.
1437 (variant::__to_type_impl): Remove.
1438 (variant::__to_type): Add default argument to check pack size, instead
1439 of using __to_type_impl.
1440 (variant::__accepted_type): Add default argument using __not_self.
1441 (variant::__is_in_place_tag, variant::__not_in_place_tag): New helpers
1442 for variant(T&&) constructor constraint.
1443 (variant::variant(T&&)): Use __not_in_place_tag in constraints.
1444 Extract __accepted_type into a named template parameter for reuse in
1445 other constraints and in the exception specification.
1446 (variant::variant(in_place_type_t<T>, Args&&...))
1447 (variant::variant(in_place_type_t<T>, initializer_list<U>, Args&&...))
1448 (variant::variant(in_place_index_t<T>, Args&&...))
1449 (variant::variant(in_place_index_t<T>, initializer_list<U>, Args&&...))
1450 (variant::operator=T&&)): Remove redundant && from trait arguments.
1451 * testsuite/20_util/variant/compile.cc: Check variant(T&&) constructor
1452 isn't used for in_place_type or in_place_index arguments.
1454 * include/std/type_traits (unwrap_reference_t): Define for C++2a.
1455 (unwrap_ref_decay): Remove inheritance from unwrap_reference.
1456 * testsuite/20_util/unwrap_reference/1.cc: Adjust test to use alias.
1458 2019-04-23 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
1459 Bernd Edlinger <bernd.edlinger@hotmail.de>
1460 Jakub Jelinek <jakub@redhat.com>
1463 * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Add
1464 general-regs-only target attribute for ARM.
1466 2019-04-23 Jonathan Wakely <jwakely@redhat.com>
1469 * include/bits/basic_string.h (_Never_valueless_alt): Make partial
1470 specialization also depend on is_nothrow_move_constructible.
1471 * include/std/variant (__detail::__variant::__never_valueless()):
1472 Only true if the variant would have a move assignment operator.
1473 (__detail::__variant::_Variant_storage<false, T...>::_M_valid()):
1474 Check __never_valueless<T...>().
1475 (variant::emplace): Only perform non-throwing move assignments
1476 for never-valueless alternatives if the variant has a move assignment
1478 * testsuite/20_util/variant/compile.cc: Check that never-valueless
1479 types can be emplaced into non-assignable variants.
1480 * testsuite/20_util/variant/run.cc: Check that never-valueless types
1481 don't get copied when emplaced into non-assignable variants.
1483 * include/std/variant (__detail::__variant::__ref_cast): Remove
1485 (__detail::__variant::_Uninitialized::_M_get)
1486 (__detail::__variant::__get)
1487 (__gen_vtable_impl::__element_by_index_or_cookie): Add noexcept.
1489 2019-04-21 Iain Sandoe <iain@sandoe.co.uk>
1491 * testsuite/17_intro/headers/c++1998/charset.cc: Skip for Darwin8
1493 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
1494 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
1495 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
1496 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
1498 2019-04-20 Thomas Rodgers <trodgers@redhat.com>
1500 Delegate PSTL configuration to pstl/pstl_config.h
1502 * include/bits/c++config: Remove explicit PSTL configuration
1503 macros and use definitions from <pstl/pstl_config.h>.
1505 2019-04-20 Thomas Rodgers <trodgers@redhat.com>
1507 Cleanup algorithm implementations
1508 * include/pstl/glue_algorithm_impl.h (stable_sort): Forward
1510 (mismatch): Forward execution policy.
1511 (equal): Qualify call to std::equal().
1512 (partial_sort): Forward execution policy.
1513 (inplace_merge): Forward execution policy.
1515 2019-04-19 Thomas Rodgers <trodgers@redhat.com>
1517 Improve implementation of parallel equal()
1518 * include/pstl/algorithm_impl.h
1519 (__internal::__brick_equal): use "4 iterator" version of
1521 (__internal::__brick_equal): use simd for random access
1522 iterators on unsequenced execution policies.
1523 (__internal::__pattern_equal): add "4 iterator" version
1524 (__internal::__pattern_equal): dispatch to simd __brick_equal
1525 for vector-only execution policies.
1526 (__internal::__pattern_equal): dispatch to __parallel_or for
1527 parallel execution policies.
1528 * include/pstl/glue_algorithm_impl.h
1529 (std::equal): dispatch to "4 iterator" version of
1530 __internal::__pattern_equal().
1532 2019-04-17 Jonathan Wakely <jwakely@redhat.com>
1535 * include/bits/forward_list.h (operator==): Do not use operator!= to
1537 (forward_list<T, A>::sort(Comp)): When elements are equal take the one
1538 earlier in the list, so that sort is stable.
1539 * testsuite/23_containers/forward_list/operations/90105.cc: New test.
1540 * testsuite/23_containers/forward_list/comparable.cc: Test with
1541 types that meet the minimum EqualityComparable and LessThanComparable
1542 requirements. Remove irrelevant comment.
1544 * include/std/variant (__detail::__variant::_Traits::_S_copy_assign):
1545 Do not depend on whether all alternative types are move constructible.
1546 (__detail::__variant::_Copy_assign_base::operator=): Remove cv-quals
1547 from the operand when deciding whether to perform the assignment.
1548 * testsuite/20_util/variant/compile.cc (DeletedMoves): Define type
1549 with deleted move constructor and deleted move assignment operator.
1550 (default_ctor, copy_ctor, move_ctor, copy_assign, move_assign): Check
1551 behaviour of variants with DeletedMoves as an alternative.
1552 * testsuite/20_util/variant/run.cc (DeletedMoves): Define same type.
1553 (move_ctor, move_assign): Check that moving a variant with a
1554 DeletedMoves alternative falls back to copying instead of moving.
1556 * testsuite/20_util/variant/compile.cc: Remove empty string literals
1557 from static_assert declarations.
1559 * testsuite/20_util/variant/compile.cc (MoveCtorOnly): Fix type to
1560 actually match its name.
1561 (MoveCtorAndSwapOnly): Define new type that adds swap to MoveCtorOnly.
1562 (test_swap()): Fix result for MoveCtorOnly and check
1563 MoveCtorAndSwapOnly.
1565 * include/std/optional (optional::value_or(U&&) &&): Add missing
1566 constexpr specifier.
1567 * testsuite/20_util/optional/constexpr/observers/4.cc: Check value_or
1568 for disengaged optionals and rvalue optionals.
1569 * testsuite/20_util/optional/observers/4.cc: Likewise.
1571 2019-04-12 Thomas Rodgers <trodgers@redhat.com>
1573 * include/pstl/algorithm_impl.h: Uglify identfiers.
1574 * include/pstl/numeric_impl.h: Uglify identfiers.
1575 * include/pstl/parallel_backend_tbb.h: Uglify identfiers.
1577 2019-04-11 Thomas Rodgers <trodgers@redhat.com>
1579 * include/bits/c++config:
1580 Add definition for __PSTL_ASSERT.
1581 Add definition for __PSTL_ASSERT_MSG.
1582 * include/pstl/algorithm_impl.h: Replace use of assert().
1583 * include/pstl/numeric_impl.h: Replace use of assert().
1584 * include/pstl/parallel_backend_tbb.h:
1585 Replace use of assert().
1586 Replace use of __TBB_ASSERT().
1587 * include/pstl/parallel_backend_utils.h: Replace use of assert().
1589 2019-04-11 Jonathan Wakely <jwakely@redhat.com>
1592 * src/c++17/memory_resource.cc
1593 (monotonic_buffer_resource::_Chunk::allocate): Increase alignment if
1594 needed to allow placing a _Chunk at the end of the buffer.
1595 (monotonic_buffer_resource::_M_new_buffer): Remove static_assert.
1597 2019-04-10 Jonathan Wakely <jwakely@redhat.com>
1599 * doc/xml/faq.xml: Add information about emergency EH pool.
1600 * doc/xml/manual/debug.xml: Update list of memory debugging tools.
1601 Move outdated information on mt_allocator to a separate section.
1602 * doc/xml/manual/evolution.xml: Clarify that GLIBCXX_FORCE_NEW
1603 doesn't affect the default allocator.
1605 * testsuite/lib/libstdc++.exp (check_v3_target_parallel_mode): Fix
1609 * testsuite/20_util/variant/89851.cc: New test.
1611 2019-04-09 Jonathan Wakely <jwakely@redhat.com>
1613 * include/std/variant: Adjust whitespace. Add comments.
1614 (_Multi_array): Leave primary template undefined.
1615 (_Multi_array<_Tp>): Define partial specialization for base case of
1617 (__gen_vtable_impl, __gen_vtable): Remove redundant && from type
1618 which is always a reference.
1619 (__gen_vtable::_S_apply()): Remove function, inline body into
1620 default member initializer.
1621 * testsuite/20_util/variant/visit.cc: Test with noncopyable types.
1623 * include/std/variant (__variant_idx_cookie): Add member type.
1624 (__visitor_result_type): Remove.
1625 (__do_visit): Use invoke_result instead of __visitor_result_type.
1626 * testsuite/20_util/variant/visit.cc: New test.
1629 * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Remove
1631 * testsuite/20_util/variant/90008.cc: New test.
1633 2019-04-09 Thomas Rodgers <trodgers@redhat.com>
1635 * include/pstl/algorithm_impl.h: Add namespace qualification.
1636 * include/pstl/execution_defs.h: Add namespace qualification.
1637 * include/pstl/execution_impl.h: Add namespace qualification.
1638 * include/pstl/numeric_impl.h: Add namespace qualification.
1639 * include/pstl/parallel_backend_tbb.h: Add namespace qualification.
1640 * include/pstl/unseq_backend_simd.h: Add namespace qualification.
1641 * include/pstl/parallel_backend_utils.h: Include <cassert>.
1643 2019-04-08 Ville Voutilainen <ville.voutilainen@gmail.com>
1645 Fix visit<R> for variant.
1646 * include/std/variant (__do_visit): Add a template parameter
1647 for enforcing same return types for visit.
1648 (__gen_vtable_impl): Likewise.
1649 (_S_apply_single_alt): Adjust.
1650 (__visit_invoke_impl): New. Handle casting to void.
1651 (__do_visit_invoke): New. Enforces same return types.
1652 (__do_visit_invoke_r): New. Converts return types.
1653 (__visit_invoke): Adjust.
1654 (__gen_vtable): Add a template parameter for enforcing
1655 same return types for visit.
1656 * testsuite/20_util/variant/visit_r.cc: Add a test for a visitor with
1657 different return types.
1658 * testsuite/20_util/variant/visit_neg.cc: New. Ensures that
1659 visitors with different return types don't accidentally
1660 compile with regular visitation.
1662 2019-04-08 Christophe Lyon <christophe.lyon@linaro.org>
1664 * testsuite/27_io/filesystem/iterators/caching.cc: Add
1665 dg-require-filesystem-ts.
1667 2019-04-05 Jonathan Wakely <jwakely@redhat.com>
1669 * doc/xml/manual/status_cxx2020.xml: Update status.
1670 * include/std/variant (visit<R>): Define for C++2a (P0655R1).
1671 * testsuite/20_util/variant/visit_r.cc: New test.
1673 * include/bits/fs_dir.h (directory_iterator::operator*)
1674 (directory_iterator::operator->): Add noexcept.
1675 (operator==, operator!=): Replace namespace-scope equality operators
1676 for directory iterators with hidden friends.
1679 * config/abi/pre/gnu.ver: Add missing exports.
1680 * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Test
1683 * config/abi/pre/gnu.ver: Export new symbols.
1684 * include/bits/fs_dir.h (recursive_directory_iterator::options())
1685 (recursive_directory_iterator::recursion_pending())
1686 (recursive_directory_iterator::disable_recursion_pending()): Remove
1687 inline definitions. Make noexcept.
1688 (recursive_directory_iterator::depth())
1689 (recursive_directory_iterator::operator*())
1690 (recursive_directory_iterator::operator->()): Make noexcept.
1691 (recursive_directory_iterator::_M_options)
1692 (recursive_directory_iterator::_M_pending): Remove data members.
1693 * src/c++17/fs_path.cc (_Dir_stack): Add constructor and data members.
1694 (recursive_directory_iterator::recursive_directory_iterator): Remove
1695 ctor-initializer. Use new constructor for _Dir_stack.
1696 (recursive_directory_iterator::options())
1697 (recursive_directory_iterator::recursion_pending())
1698 (recursive_directory_iterator::disable_recursion_pending()): Add
1699 non-inline definitions.
1700 (recursive_directory_iterator::depth()): Make noexcept.
1701 (recursive_directory_iterator::increment(error_code&))
1702 (recursive_directory_iterator::pop(error_code&)): Adjust to new
1703 location of options and recursion_pending members.
1704 * testsuite/27_io/filesystem/iterators/recursion_pending.cc: New test.
1705 * testsuite/util/testsuite_fs.h (__gnu_test::scoped_file): Add
1706 user-declared move constructor and assignment operator, to make the
1709 * src/c++17/fs_dir.cc (_Dir::advance(bool, error_code&)): Handle
1710 d_type == DT_UNKNOWN immediately.
1711 (_Dir::should_recurse(bool, error_code&)): Remove file_type::unknown
1713 * testsuite/27_io/filesystem/iterators/caching.cc: New test.
1715 * include/bits/fs_path.h (path::operator=(path&&)): Check for self
1717 * src/c++17/fs_path.cc (path::operator=(const path&)): Likewise.
1718 * testsuite/27_io/filesystem/path/assign/copy.cc: Test self
1721 PR libstdc++/87431 (again)
1722 * include/bits/basic_string.h (__variant::_Never_valueless_alt):
1723 Define partial specialization for basic_string.
1724 * include/bits/shared_ptr.h (_Never_valueless_alt): Likewise for
1725 shared_ptr and weak_ptr.
1726 * include/bits/std_function.h (_Never_valueless_alt): Likewise for
1728 * include/bits/stl_vector.h (_Never_valueless_alt): Likewise for
1730 * include/bits/unique_ptr.h (_Never_valueless_alt): Likewise for
1732 * include/debug/vector (_Never_valueless_alt): Likewise for debug
1734 * include/std/any (_Never_valueless_alt): Define explicit
1735 specialization for any.
1736 * include/std/variant (_Never_valueless_alt): Define primary template.
1737 (__never_valueless): Use _Never_valueless_alt instead of
1738 is_trivially_copyable.
1739 (variant::emplace<N>(Args&&...)): Add special case for non-throwing
1740 initializations to avoid try-catch overhead. Add special case for
1741 scalars produced by potentially-throwing conversions. Use
1742 _Never_valueless_alt instead of is_trivially_copyable for the
1743 remaining strong exception-safety cases.
1744 (variant::emplace<N>(initializer_list<U>, Args&&...)): Likewise.
1745 * testsuite/20_util/variant/87431.cc: Run both test functions.
1746 * testsuite/20_util/variant/exception_safety.cc: New test.
1747 * testsuite/20_util/variant/run.cc: Use pmr::string instead of string,
1748 so the variant becomes valueless.
1750 2019-04-03 Jonathan Wakely <jwakely@redhat.com>
1753 * include/std/variant (_Copy_assign_base, _Move_assign_base, variant):
1755 (variant::emplace<_Tp>): Return result of emplace<N> directly.
1757 * include/std/string (__hash_string_base): New class template defining
1758 operator() for hashing strings.
1759 (hash<pmr::string>, hash<pmr::u8string>, hash<pmr::u16string>)
1760 (hash<pmr::u32string>, hash<pmr::wstring>): Define for C++17.
1761 * testsuite/21_strings/basic_string/hash/hash.cc: New test.
1762 * testsuite/21_strings/basic_string/hash/hash_char8_t.cc: New test.
1764 2019-04-01 Ville Voutilainen <ville.voutilainen@gmail.com>
1766 Use single-visitation in variant assignment and swap and relops.
1767 Also use indices instead of types when checking whether
1768 variants hold the same thing.
1769 * include/std/variant (__do_visit): Add a template parameter
1770 for index visitation, invoke with indices if index visitation
1772 (__variant_idx_cookie): New.
1773 (__visit_with_index): Likewise.
1774 (_Copy_assign_base::operator=): Do single-visitation with
1776 (_Move_assign_base::operator=): Likewise.
1777 (_Extra_visit_slot_needed): Adjust.
1778 (__visit_invoke): Call with indices if it's an index visitor.
1779 (relops): Do single-visitation with an index visitor.
1781 (__visitor_result_type): New.
1783 2019-03-30 Eric Botcazou <ebotcazou@adacore.com>
1785 * src/c++17/fs_ops.cc (fs::permissions): Use std::errc::not_supported.
1787 2019-03-28 Ville Voutilainen <ville.voutilainen@gmail.com>
1789 Don't revisit a variant we are already visiting.
1790 * include/std/variant (__variant_construct_single): New.
1791 (__variant_construct): Use it.
1792 (_M_destructive_move): Likewise.
1793 (_M_destructive_copy): Likewise.
1794 (_Copy_assign_base::operator=): Adjust.
1795 (_Move_assign_base::operator=): Likewise.
1798 2019-03-26 Jonathan Wakely <jwakely@redhat.com>
1801 * include/bits/hashtable.h (_Hashtable): Move static assertions to
1802 destructor so they are not evaluated until the _Key type is complete.
1803 * include/bits/stl_tree.h (_Rb_tree): Likewise.
1804 * testsuite/23_containers/set/85965.cc: New test.
1805 * testsuite/23_containers/unordered_set/85965.cc: New test.
1806 * testsuite/23_containers/map/48101_neg.cc: Replace "here" errors
1807 with regexp matching the corresponding _Rb_tree specialization.
1808 * testsuite/23_containers/multimap/48101_neg.cc: Likewise.
1809 * testsuite/23_containers/multiset/48101_neg.cc: Remove "here" error.
1810 * testsuite/23_containers/set/48101_neg.cc: Likewise.
1811 * testsuite/23_containers/unordered_map/48101_neg.cc: Likewise.
1812 * testsuite/23_containers/unordered_multimap/48101_neg.cc: Likewise.
1813 * testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise.
1814 * testsuite/23_containers/unordered_set/48101_neg.cc: Likewise.
1816 2019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com>
1819 Fix based on a suggestion by Antony Polukhin.
1820 * include/std/variant (__never_valueless): New.
1822 (_Extra_visit_slot_needed): New.
1823 (_Multi_array): Use it.
1824 (_S_apply_all_alts): Likewise.
1826 2019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com>
1829 Fix based on a suggestion by Antony Polukhin.
1830 * include/std/variant (__gen_vtable): Don't reserve an
1831 additional table slot, _Multi_array already does that.
1833 2019-03-26 Ville Voutilainen <ville.voutilainen@gmail.com>
1836 Fix based on a suggestion by Antony Polukhin.
1837 * include/std/variant (__variant_construct): Capture a pointer
1838 to the storage and visit just one variant.
1840 2019-03-22 Jonathan Wakely <jwakely@redhat.com>
1842 * doc/xml/manual/backwards_compatibility.xml: Remove link to
1843 Doxygen-generated pages with unstable URL.
1844 * doc/xml/manual/concurrency_extensions.xml: Likewise.
1845 * doc/xml/manual/extensions.xml: Likewise.
1846 * doc/xml/manual/parallel_mode.xml: Likewise.
1847 * doc/xml/manual/support.xml: Likewise.
1849 * include/bits/stl_algobase.h (__lg): Do arithmetic on type int to
1850 avoid -Wconversion warnings.
1852 2019-03-21 Thomas Rodgers <trodgers@redhat.com>
1854 * include/Makefile.am (std_header): Add ${std_srcdir}/execution.
1855 (pstl_srcdir, pstl_builddir, pstl_headers): New variables.
1856 (allstamped): Add stamp-pstl.
1857 (install-headers): Add ptsl_builddir.
1858 * include/Makefile.in: Regenerate.
1859 * include/bits/c++config: Add pstl configuration.
1860 * include/pstl/LICENSE.txt: New file.
1861 * include/pstl/algorithm_fwd.h: New file.
1862 * include/pstl/algorithm_impl.h: New file.
1863 * include/pstl/execution_defs.h: New file.
1864 * include/pstl/execution_impl.h: New file.
1865 * include/pstl/glue_algorithm_defs.h: New file.
1866 * include/pstl/glue_algorithm_impl.h: New file.
1867 * include/pstl/glue_execution_defs.h: New file.
1868 * include/pstl/glue_memory_defs.h: New file.
1869 * include/pstl/glue_memory_impl.h: New file.
1870 * include/pstl/glue_numeric_defs.h: New file.
1871 * include/pstl/glue_numeric_impl.h: New file.
1872 * include/pstl/memory_impl.h: New file.
1873 * include/pstl/numeric_fwd.h: New file.
1874 * include/pstl/numeric_impl.h: New file.
1875 * include/pstl/parallel_backend.h: New file.
1876 * include/pstl/parallel_backend_tbb.h: New file.
1877 * include/pstl/parallel_backend_utils.h: New file.
1878 * include/pstl/parallel_impl.h: New file.
1879 * include/pstl/pstl_config.h: New file.
1880 * include/pstl/unseq_backend_simd.h: New file.
1881 * include/pstl/utils.h: New file.
1882 * include/std/algorithm: Include parallel algorithm implementations.
1883 * include/std/execution: New file.
1884 * include/std/memory: Include parallel algorithm implementations.
1885 * include/std/numeric: Include parallel algorithm implementations.
1886 * include/std/version: Add parallel algorithms feature test macro.
1887 * testsuite/util/pstl/pstl_test_config.h: New file.
1888 * testsuite/util/pstl/test_utils.h: New file.
1889 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file.
1890 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file.
1891 * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file.
1892 * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file.
1893 * testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file.
1894 * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file.
1895 * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file.
1896 * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file.
1897 * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file.
1898 * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file.
1899 * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file.
1900 * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file.
1901 * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file.
1902 * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file.
1903 * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file.
1904 * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file.
1905 * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file.
1906 * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file.
1907 * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file.
1908 * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file.
1909 * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file.
1910 * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file.
1911 * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file.
1912 * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file.
1913 * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file.
1914 * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file.
1915 * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file.
1916 * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file.
1917 * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file.
1918 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file.
1919 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file.
1920 * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file.
1921 * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file.
1922 * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file.
1923 * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file.
1924 * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file.
1925 * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file.
1926 * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file.
1927 * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file.
1928 * testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file.
1929 * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file.
1930 * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file.
1931 * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file.
1932 * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file.
1933 * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file.
1934 * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file.
1935 * testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file.
1936 * testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file.
1937 * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file.
1938 * testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file.
1939 * testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file.
1940 * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file.
1941 * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file.
1942 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file.
1943 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file.
1944 * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file.
1945 * testsuite/testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file.
1946 * testsuite/testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file.
1947 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file.
1948 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file.
1949 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file.
1950 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file.
1951 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file.
1952 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file.
1953 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file.
1954 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file.
1955 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file.
1956 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file.
1957 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file.
1958 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file.
1959 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file.
1960 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file.
1961 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file.
1962 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file.
1963 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file.
1964 * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file.
1965 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file.
1966 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file.
1967 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file.
1968 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file.
1969 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file.
1970 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file.
1971 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file.
1972 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file.
1973 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file.
1974 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file.
1975 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file.
1976 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file.
1977 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file.
1978 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file.
1979 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file.
1980 * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file.
1981 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file.
1982 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file.
1983 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file.
1984 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file.
1985 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file.
1986 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file.
1987 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file.
1988 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file.
1989 * testsuite/testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file.
1990 * testsuite/testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file.
1991 * testsuite/testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file.
1992 * testsuite/testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file.
1993 * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file.
1994 * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file.
1996 2019-03-21 Jonathan Wakely <jwakely@redhat.com>
1998 * include/c_compatibility/math.h [!__STDCPP_WANT_MATH_SPEC_FUNCS__]
1999 (assoc_laguerre, assoc_laguerref, assoc_laguerrel, assoc_legendre)
2000 (assoc_legendref, assoc_legendrel, beta, betaf, betal, comp_ellint_1)
2001 (comp_ellint_1f, comp_ellint_1l, comp_ellint_2, comp_ellint_2f)
2002 (comp_ellint_2l, comp_ellint_3, comp_ellint_3f, comp_ellint_3l)
2003 (cyl_bessel_i, cyl_bessel_if, cyl_bessel_il, cyl_bessel_j)
2004 (cyl_bessel_jf, cyl_bessel_jl, cyl_bessel_k, cyl_bessel_kf)
2005 (cyl_bessel_kl, cyl_neumann, cyl_neumannf, cyl_neumannl, ellint_1)
2006 (ellint_1f, ellint_1l, ellint_2, ellint_2f, ellint_2l, ellint_3)
2007 (ellint_3f, ellint_3l, expint, expintf, expintl, hermite, hermitef)
2008 (hermitel, laguerre, laguerref, laguerrel, legendre, legendref)
2009 (legendrel, riemann_zeta, riemann_zetaf, riemann_zetal, sph_bessel)
2010 (sph_besself, sph_bessell, sph_legendre, sph_legendref, sph_legendrel)
2011 (sph_neumann, sph_neumannf, sph_neumannl): Only add using-declarations
2012 when the special functions IS is enabled, not for C++17.
2013 * testsuite/26_numerics/headers/cmath/functions_global_c++17.cc:
2015 * testsuite/26_numerics/headers/cmath/functions_global.cc: New test,
2016 without checks for special functions in C++17.
2017 * testsuite/26_numerics/headers/cmath/special_functions_global.cc:
2021 * include/backward/hash_map: Use <> for includes not "".
2022 * include/backward/hash_set: Likewise.
2023 * include/backward/strstream: Likewise.
2024 * include/tr1/bessel_function.tcc: Likewise.
2025 * include/tr1/exp_integral.tcc: Likewise.
2026 * include/tr1/legendre_function.tcc: Likewise.
2027 * include/tr1/modified_bessel_func.tcc: Likewise.
2028 * include/tr1/riemann_zeta.tcc: Likewise.
2030 2019-03-19 Jonathan Wakely <jwakely@redhat.com>
2032 * doc/xml/manual/allocator.xml: Link to table documenting evolution
2033 of extension allocators.
2034 * doc/xml/manual/evolution.xml: Use angle brackets for header names.
2035 Document new headers in 7.2, 8.1 and 9.1 releases.
2036 * doc/xml/manual/using.xml: Adjust link target for new_allocator.
2037 * doc/html/*: Regenerate.
2039 2019-03-12 John David Anglin <dave.anglin@bell.net>
2042 * testsuite/lib/libstdc++.exp: Locate libatomic.
2043 * testsuite/lib/dg-options.exp (add_options_for_libatomic): New.
2044 * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc: Add
2046 * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
2047 * testsuite/experimental/net/timer/waitable/cons.cc: Likewise.
2048 * testsuite/experimental/net/timer/waitable/dest.cc: Likewise.
2049 * testsuite/experimental/net/timer/waitable/ops.cc: Likewise.
2051 2019-03-11 Jonathan Wakely <jwakely@redhat.com>
2054 * configure.ac: Check for sockatmark.
2055 * crossconfig.m4: Check for sockatmark.
2056 * config.h.in: Regenerate.
2057 * configure: Regenerate.
2058 * include/experimental/internet (address_v4::_S_hton): Rename
2059 overloaded functions to _S_hton_16 and _S_ntoh_16.
2060 (address_v4::_S_ntoh): Rename to _S_ntoh_16 and _S_ntoh_32.
2061 (basic_endpoint): Adjust calls to _S_hton and _S_ntoh.
2062 * include/experimental/socket (basic_socket::at_mark): Check
2063 _GLIBCXX_HAVE_SOCKATMARK.
2065 * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc: Use
2066 const variables instead of macros.
2069 * libsupc++/hash_bytes.cc [__SIZEOF_SIZE_T__ == 8] (_Hash_bytes):
2070 Use correct type for len_aligned.
2071 * testsuite/20_util/hash/89629.cc: New test.
2073 2019-03-11 Jakub Jelinek <jakub@redhat.com>
2076 * include/std/atomic (atomic<T>::store, atomic<T>::load,
2077 atomic<T>::exchange, atomic<T>::compare_exchange_weak,
2078 atomic<T>::compare_exchange_strong): Cast __m or __s and __f to int.
2079 * include/bits/atomic_base.h (__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^=,
2083 __atomic_base<T*>::operator++, __atomic_base<T*>::operator--,
2084 __atomic_base<T*>::operator+=, __atomic_base<T*>::operator-=): Cast
2085 memory_order_seq_cst to int.
2087 2019-03-08 Jonathan Wakely <jwakely@redhat.com>
2089 * doc/xml/manual/using.xml: Use link element instead of xref.
2090 * doc/html/*: Regenerate.
2092 * include/bits/fs_path.h (path::format): Add fixed underlying type.
2094 2019-03-08 François Dumont <fdumont@gcc.gnu.org>
2097 * include/debug/map.h (map): Use _RequireNotAllocator to constrain
2098 parameters in deduction guides.
2099 * include/debug/multimap.h (multimap): Likewise.
2100 * include/debug/set.h (multimap): Likewise.
2101 * include/debug/multiset.h (multimap): Likewise.
2102 * include/debug/unordered_map (unordered_map): Likewise.
2103 (unordered_multimap): Likewise.
2104 * include/debug/unordered_set (unordered_set): Likewise.
2105 (unordered_multiset): Likewise.
2108 * include/debug/unordered_map (unordered_map<>::_M_check_rehashed):
2109 Invalidate all iterators in case of rehash.
2110 (unordered_multimap<>::_M_check_rehashed): Likewise.
2111 * include/debug/unordered_set
2112 (unordered_set<>::_M_check_rehashed): Likewise.
2113 (unordered_multiset<>::_M_check_rehashed): Likewise.
2114 * testsuite/23_containers/unordered_set/debug/89608_neg.cc: New.
2116 2019-03-07 Andreas Schwab <schwab@suse.de>
2118 * config/abi/post/riscv64-linux-gnu: New directory.
2119 * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: New file.
2121 2019-03-07 Jonathan Wakely <jwakely@redhat.com>
2123 * testsuite/20_util/function_objects/bind_front/1.cc: Change from
2124 compile test to run. Fix typo.
2126 * doc/xml/manual/status_cxx2020.xml: Update C++20 status.
2127 * doc/html/*: Regenerate.
2129 P0356R5 Simplified partial function application
2130 * include/std/functional [C++20] (_Bind_front, _Bind_front_t): Define
2131 helpers for bind_front.
2132 (bind_front, __cpp_lib_bind_front): Define.
2133 * testsuite/20_util/function_objects/bind_front/1.cc: New test.
2135 2019-03-06 Jonathan Wakely <jwakely@redhat.com>
2137 * include/std/type_traits (__cpp_lib_bounded_array_traits): Define.
2138 * include/std/version (__cpp_lib_bounded_array_traits): Likewise.
2139 * testsuite/20_util/is_bounded_array/value.cc: Check for macro.
2140 * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
2142 2019-03-06 Edward Smith-Rowland <3dw4rd@verizon.net>
2144 PR libstdc++/86655 - std::assoc_legendre should not constrain
2145 the value of m (or x).
2146 * include/tr1/legendre_function.tcc (__assoc_legendre_p,
2147 __sph_legendre): If degree > order Don't throw, return 0.
2148 (__legendre_p, __assoc_legendre_p): Don't constrain x either.
2149 * testsuite/special_functions/02_assoc_legendre/pr86655.cc: New test.
2150 * testsuite/special_functions/20_sph_legendre/pr86655.cc: New test.
2151 * testsuite/tr1/5_numerical_facilities/special_functions/
2152 02_assoc_legendre/pr86655.cc: New test.
2153 * testsuite/tr1/5_numerical_facilities/special_functions/
2154 22_sph_legendre/pr86655.cc: New test.
2156 2019-03-06 Ville Voutilainen <ville.voutilainen@gmail.com>
2159 Also PR libstdc++/85517
2160 * include/std/variant (__do_visit): New.
2161 (__variant_cast): Likewise.
2162 (__variant_cookie): Likewise.
2163 (__erased_*): Remove.
2164 (_Variant_storage::_S_vtable): Likewise.
2165 (_Variant_storage::__M_reset_impl): Adjust to use __do_visit.
2166 (_Variant_storage::__M_reset): Adjust.
2167 (__variant_construct): New.
2168 (_Copy_ctor_base(const _Copy_ctor_base&)): Adjust to use
2169 __variant_construct.
2170 (_Move_ctor_base(_Move_ctor_base&&)): Likewise.
2171 (_Move_ctor_base::__M_destructive_copy): New.
2172 (_Move_ctor_base::__M_destructive_move): Adjust to use
2173 __variant_construct.
2174 (_Copy_assign_base::operator=): Adjust to use __do_visit.
2175 (_Copy_assign_alias): Adjust to check both copy assignment
2176 and copy construction for triviality.
2177 (_Move_assign_base::operator=): Adjust to use __do_visit.
2178 (_Multi_array): Add support for visitors that accept and return
2180 (__gen_vtable_impl::_S_apply_all_alts): Likewise.
2181 (__gen_vtable_impl::_S_apply_single_alt): Likewise.
2182 (__gen_vtable_impl::__element_by_index_or_cookie): New. Generate
2183 a __variant_cookie temporary for a variant that is valueless and..
2184 (__gen_vtable_impl::__visit_invoke): ..adjust here.
2185 (__gen_vtable::_Array_type): Conditionally make space for
2186 the __variant_cookie visitor case.
2187 (__variant_construct_by_index): New.
2188 (get_if): Adjust to use std::addressof.
2189 (relops): Adjust to use __do_visit.
2190 (variant): Add __variant_cast and __variant_construct_by_index
2192 (variant::emplace): Use _M_reset() and __variant_construct_by_index
2193 instead of self-destruction.
2194 (variant::swap): Adjust to use __do_visit.
2195 (visit): Reimplement in terms of __do_visit.
2196 (__variant_hash_call_base_impl::operator()): Adjust to use __do_visit.
2197 * testsuite/20_util/variant/compile.cc: Adjust.
2198 * testsuite/20_util/variant/run.cc: Likewise.
2200 2019-03-06 Jonathan Wakely <jwakely@redhat.com>
2202 * include/bits/c++config.h (_cpp_lib_char8_t): Add L suffix to
2204 * testsuite/experimental/feat-char8_t.cc: Likewise.
2206 * include/std/type_traits [C++20] (is_bounded_array)
2207 (is_unbounded_array, is_bounded_array_v, is_unbounded_array_v):
2209 * testsuite/20_util/is_bounded_array/requirements/
2210 explicit_instantiation.cc: New test.
2211 * testsuite/20_util/is_bounded_array/requirements/typedefs.cc: New
2213 * testsuite/20_util/is_bounded_array/value.cc: New test.
2214 * testsuite/20_util/is_unbounded_array/requirements/
2215 explicit_instantiation.cc: New test.
2216 * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc: New
2218 * testsuite/20_util/is_unbounded_array/value.cc: New test.
2220 * include/bits/ptr_traits.h [C++20] (pointer_traits<T*>::pointer_to):
2222 * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc: New test.
2224 2019-03-05 Jonathan Wakely <jwakely@redhat.com>
2226 * include/c_compatibility/math.h [C++20] (lerp): Add using
2228 * include/c_global/cmath [C++20] (__cpp_lib_interpolate): Define.
2229 (__lerp): Define function template to implement lerp.
2230 (lerp(float, float, float), lerp(double, double, double))
2231 (lerp(long double, long double, long double)): Define for C++20.
2232 * include/std/numeric [C++20] (__cpp_lib_interpolate): Define.
2233 (midpoint(T, T), midpoint(T*, T*)): Define.
2234 * include/std::version [C++20] (__cpp_lib_interpolate): Define.
2235 * testsuite/26_numerics/lerp.cc: New test.
2236 * testsuite/26_numerics/midpoint/floating.cc: New test.
2237 * testsuite/26_numerics/midpoint/integral.cc: New test.
2238 * testsuite/26_numerics/midpoint/pointer.cc: New test.
2240 2019-03-04 Edward Smith-Rowland <3dw4rd@verizon.net>
2242 PR libstdc++/88996 Implement P0439R0
2243 Make std::memory_order a scoped enumeration.
2244 * include/bits/atomic_base.h: For C++20 make memory_order a scoped enum,
2245 add variables for the old enumerators. Adjust calls.
2246 * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc: New test.
2247 * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc: New test.
2249 2019-03-04 Jonathan Wakely <jwakely@redhat.com>
2251 * testsuite/26_numerics/bit/bitops.rot/rotl.cc: Remove bogus dg-do
2254 * include/std/memory_resource (polymorphic_allocator): Add default
2255 template argument for C++20.
2256 (polymorphic_allocator::allocate_bytes)
2257 (polymorphic_allocator::deallocate_bytes)
2258 (polymorphic_allocator::allocate_object)
2259 (polymorphic_allocator::deallocate_object)
2260 (polymorphic_allocator::new_object)
2261 (polymorphic_allocator::delete_object): New member functions for
2263 * testsuite/20_util/polymorphic_allocator/allocate_object.cc: New
2266 2019-03-03 Jonathan Wakely <jwakely@redhat.com>
2269 * src/filesystem/ops-common.h (do_copy_file): Open files in binary
2272 2019-03-01 Jonathan Wakely <jwakely@redhat.com>
2274 * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource)
2275 [!__cpp_sized_deallocation]: Do not pass size to operator delete.
2277 * include/std/memory (uses_allocator_construction_args): New set of
2278 overloaded functions.
2279 (make_obj_using_allocator, uninitialized_construct_using_allocator):
2281 * include/std/memory_resource (polymorphic_allocator::construct)
2282 [__cplusplus > 201703l]: Replace all overloads with a single function
2283 using uses_allocator_construction_args.
2284 * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc: New
2286 * testsuite/20_util/uses_allocator/make_obj.cc: New test.
2288 2019-02-27 Jonathan Wakely <jwakely@redhat.com>
2291 * acinclude.m4 (GLIBCXX_CONFIGURE_DOCBOOK): Reorder check for local
2292 stylesheet directories before check for xsltproc. Try to use
2293 xmlcatalog to find local stylesheet directory before trying hardcoded
2294 paths. Add path used by suse to hardcoded paths. Adjust xsltproc
2295 check to look for the same stylesheet as doc/Makefile.am uses. Don't
2296 use xsltproc if xmlcatalog fails to find a local stylesheet.
2297 * configure.ac: Check for xmlcatalog.
2298 * Makefile.in: Regenerate.
2299 * configure: Likewise.
2300 * doc/Makefile.in: Likewise.
2301 * include/Makefile.in: Likewise.
2302 * libsupc++/Makefile.in: Likewise.
2303 * po/Makefile.in: Likewise.
2304 * python/Makefile.in: Likewise.
2305 * src/Makefile.in: Likewise.
2306 * src/c++11/Makefile.in: Likewise.
2307 * src/c++17/Makefile.in: Likewise.
2308 * src/c++98/Makefile.in: Likewise.
2309 * src/filesystem/Makefile.in: Likewise.
2310 * testsuite/Makefile.in: Likewise.
2312 2019-02-26 Jonathan Wakely <jwakely@redhat.com>
2315 * include/bits/alloc_traits.h (_RequireNotAllocator): New helper for
2316 container deduction guides.
2317 * include/bits/hashtable.h (_RequireNotAllocatorOrIntegral): Likewise.
2318 * include/bits/stl_map.h (map): Use _RequireNotAllocator to constrain
2319 parameters in deduction guides.
2320 * include/bits/stl_multimap.h (multimap): Likewise.
2321 * include/bits/stl_multiset.h (multiset): Likewise.
2322 * include/bits/stl_queue.h (queue, priority_queue): Likewise.
2323 * include/bits/stl_set.h (set): Likewise.
2324 * include/bits/stl_stack.h (stack): Likewise.
2325 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
2326 use _RequireNotAllocator and _RequireNotAllocatorOrIntegral to
2327 constrain parameters in deduction guides.
2328 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
2330 * testsuite/23_containers/map/cons/deduction.cc: Test additional
2332 * testsuite/23_containers/multiset/cons/deduction.cc: Likewise.
2333 * testsuite/23_containers/set/cons/deduction.cc: Likewise.
2334 * testsuite/23_containers/unordered_map/cons/deduction.cc: Likewise.
2335 * testsuite/23_containers/unordered_multimap/cons/deduction.cc:
2337 * testsuite/23_containers/unordered_multiset/cons/deduction.cc:
2339 * testsuite/23_containers/unordered_set/cons/deduction.cc: Likewise.
2342 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Change
2343 to class template and partial specialization using void_t.
2344 (__is_copy_insertable, __is_move_insertable): Adjust base class.
2346 2019-02-24 Jonathan Wakely <jwakely@redhat.com>
2349 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Make
2350 copy and move members public.
2352 2019-02-23 Jonathan Wakely <jwakely@redhat.com>
2354 * include/std/type_traits (__underlying_type_impl): New helper to
2355 make underlying_type SFINAE-friendly.
2356 (underlying_type): Derive from __underlying_type_impl.
2357 * testsuite/20_util/underlying_type/requirements/typedefs-3.cc: New
2361 * include/bits/char_traits.h (__constant_char_array): Check index is
2362 in range before dereferencing.
2363 (char_traits<char>::compare, char_traits<char>::find)
2364 (char_traits<char8_t>::compare, char_traits<char8_t>::find): Return
2365 immediately if n is zero.
2366 (char_traits<wchar_t>::compare, char_traits<wchar_t>::find): Likewise.
2367 Remove workarounds for PR 67026.
2368 * testsuite/21_strings/basic_string_view/operators/char/89446.cc:
2370 * testsuite/21_strings/basic_string_view/operators/wchar_t/89446.cc:
2373 2019-02-22 Eric Botcazou <ebotcazou@adacore.com>
2375 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Adjust.
2376 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
2378 2019-02-22 Jakub Jelinek <jakub@redhat.com>
2381 * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Change return
2382 type to std::size_t and argument to type to long double.
2384 2019-02-22 Eric Botcazou <ebotcazou@adacore.com>
2386 * configure.host (abi_baseline_pair): Adjust for SPARC64/Linux.
2387 * config/abi/post/sparc64-linux-gnu: New directory.
2388 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: New file.
2389 * config/abi/post/sparc64-linux-gnu/32: New directory.
2390 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: New file.
2392 2019-02-21 Jonathan Wakely <jwakely@redhat.com>
2394 * testsuite/29_atomics/headers/atomic/types_std_c++20.cc: New test.
2395 * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc: New
2398 2019-02-22 Tom Honermann <tom@honermann.net>
2400 * python/libstdcxx/v6/printers.py (register_type_printers): Add type
2401 printers for u8string and u8string_view.
2403 2019-02-22 Tom Honermann <tom@honermann.net>
2405 * testsuite/18_support/byte/ops.cc: Validate
2406 std::to_integer<char8_t>, std::to_integer<char16_t>, and
2407 std::to_integer<char32_t>.
2408 * testsuite/18_support/numeric_limits/dr559.cc: Validate
2409 std::numeric_limits<char8_t>.
2410 * testsuite/18_support/numeric_limits/lowest.cc: Validate
2411 std::numeric_limits<char8_t>::lowest().
2412 * testsuite/18_support/numeric_limits/max_digits10.cc: Validate
2413 std::numeric_limits<char8_t>::max_digits10.
2414 * testsuite/18_support/type_info/fundamental.cc: Validate
2415 typeinfo for char8_t.
2416 * testsuite/20_util/from_chars/1_c++20_neg.cc: New test, validating
2417 std::from_chars with char8_t.
2418 * testsuite/20_util/hash/requirements/explicit_instantiation.cc:
2419 Validate explicit instantiation of std::hash<char8_t>.
2420 * testsuite/20_util/is_integral/value.cc: Validate
2421 std::is_integral<char8_t>.
2422 * testsuite/20_util/make_signed/requirements/typedefs-4.cc:
2423 Validate std::make_signed<char8_t>.
2424 * testsuite/21_strings/basic_string/cons/char/deduction.cc:
2425 Validate u8string construction from char8_t sources.
2426 * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Validate
2428 * testsuite/21_strings/basic_string_view/operations/compare/
2429 char/70483.cc: Validate substr operations on u8string_view.
2430 * testsuite/21_strings/basic_string_view/typedefs.cc: Validate that
2431 the u8string_view typedef is defined.
2432 * testsuite/21_strings/char_traits/requirements/
2433 constexpr_functions.cc: Validate char_traits<char8_t> constexpr
2435 * testsuite/21_strings/char_traits/requirements/
2436 constexpr_functions_c++17.cc: Validate char_traits<char8_t> C++17
2437 constexpr member functions.
2438 * testsuite/21_strings/headers/string/types_std_c++0x.cc: Validate
2439 that the u8string typedef is defined.
2440 * testsuite/22_locale/locale/cons/unicode.cc: Validate the presence
2441 of the std::codecvt<char16_t, char8_t, std::mbstate_t> and
2442 std::codecvt<char32_t, char8_t, std::mbstate_t> facets.
2443 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Update line
2445 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
2446 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc:
2448 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
2449 * testsuite/29_atomics/atomic_integral/is_always_lock_free.cc:
2450 Validate std::atomic<char8_t>::is_always_lock_free
2451 * testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc:
2452 Update line numbers.
2453 * testsuite/29_atomics/atomic_integral/operators/decrement_neg.cc:
2455 * testsuite/29_atomics/atomic_integral/operators/increment_neg.cc:
2457 * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc:
2458 Validate std::experimental::pmr::u8string.
2459 * testsuite/experimental/string_view/typedefs.cc: Validate that the
2460 u8string_view typedef is defined.
2461 * testsuite/util/testsuite_common_types.h: Add char8_t, char16_t and
2462 char32_t to the typelists.
2464 2019-02-22 Tom Honermann <tom@honermann.net>
2466 * include/ext/typelist.h: Constrain a partial specialization of
2467 typelist::detail::append_ to only match chain<T1,T2>.
2469 2019-02-21 Jonathan Wakely <jwakely@redhat.com>
2472 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Replace
2473 class template with class. Replace move and copy member types with
2474 member alias templates, so they are only instantiated when needed.
2475 (__is_copy_insertable, __is_move_insertable): Adjust base class.
2476 * testsuite/23_containers/vector/modifiers/push_back/89130.cc: Enable
2477 test for C++11/14/17 as well.
2478 * testsuite/23_containers/vector/modifiers/push_back/89416.cc: New
2481 2019-02-20 Jakub Jelinek <jakub@redhat.com>
2484 * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Add
2485 _GLIBCXX_PURE to the alias declaration.
2487 2019-02-19 Jonathan Wakely <jwakely@redhat.com>
2489 * testsuite/21_strings/basic_string/literals/types.cc
2490 [_GLIBCXX_USE_CHAR8_T]: Adjust expected string type for u8 literal.
2491 * testsuite/21_strings/basic_string/literals/values.cc
2492 [_GLIBCXX_USE_CHAR8_T]: Likewise.
2493 * testsuite/22_locale/codecvt/char16_t.cc: Adjust for u8 literals
2494 potentially having different type.
2495 * testsuite/22_locale/codecvt/char32_t.cc: Likewise.
2496 * testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: Cast u8 literal
2498 * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: Likewise.
2499 * testsuite/22_locale/codecvt/utf8.cc: Likewise.
2500 * testsuite/22_locale/conversions/string/2.cc: Remove u8 prefix from
2501 string literals only using basic character set.
2502 * testsuite/22_locale/conversions/string/3.cc: Likewise. Cast other
2503 u8 literals to char.
2504 * testsuite/29_atomics/headers/atomic/macros.cc [_GLIBCXX_USE_CHAR8_T]:
2505 Test ATOMIC_CHAR8_T_LOCK_FREE.
2506 Add missing #error to ATOMIC_CHAR16_T_LOCK_FREE test.
2507 * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc
2508 [_GLIBCXX_USE_CHAR8_T]: Check for std::atomic_char8_t.
2509 * testsuite/experimental/string_view/literals/types.cc
2510 [_GLIBCXX_USE_CHAR8_T]: Adjust expected string_view type for u8
2512 * testsuite/experimental/string_view/literals/values.cc
2513 [_GLIBCXX_USE_CHAR8_T]: Likewise.
2515 2019-02-19 Tom Honermann <tom@honermann.net>
2517 * testsuite/18_support/numeric_limits/char8_t.cc: New test cloned
2518 from char16_32_t.cc; validates numeric_limits<char8_t>.
2519 * testsuite/21_strings/basic_string/literals/types-char8_t.cc: New
2520 test cloned from types.cc; validates operator""s for char8_t
2522 * testsuite/21_strings/basic_string/literals/values-char8_t.cc: New
2523 test cloned from values.cc; validates construction and comparison
2525 * testsuite/21_strings/basic_string/requirements/
2526 /explicit_instantiation/char8_t/1.cc: New test cloned from
2527 char16_t/1.cc; validates explicit instantiation of
2528 basic_string<char8_t>.
2529 * testsuite/21_strings/basic_string_view/literals/types-char8_t.cc:
2530 New test cloned from types.cc; validates operator""sv for char8_t
2531 returns u8string_view.
2532 * testsuite/21_strings/basic_string_view/literals/
2533 values-char8_t.cc: New test cloned from values.cc; validates
2534 construction and comparison of u8string_view values.
2535 * testsuite/21_strings/basic_string_view/requirements/
2536 explicit_instantiation/char8_t/1.cc: New test cloned from
2537 char16_t/1.cc; validates explicit instantiation of
2538 basic_string_view<char8_t>.
2539 * testsuite/21_strings/char_traits/requirements/char8_t/65049.cc:
2540 New test cloned from char16_t/65049.cc; validates that
2541 char_traits<char8_t> is not vulnerable to the concerns in PR65049.
2542 * testsuite/21_strings/char_traits/requirements/char8_t/
2543 typedefs.cc: New test cloned from char16_t/typedefs.cc; validates
2544 that char_traits<char8_t> member typedefs are present and correct.
2545 * testsuite/21_strings/char_traits/requirements/
2546 explicit_instantiation/char8_t/1.cc: New test cloned from
2547 char16_t/1.cc; validates explicit instantiation of
2548 char_traits<char8_t>.
2549 * testsuite/22_locale/codecvt/char16_t-char8_t.cc: New test cloned
2550 from char16_t.cc: validates
2551 codecvt<char16_t, char8_t, mbstate_t>.
2552 * testsuite/22_locale/codecvt/char32_t-char8_t.cc: New test cloned
2553 from char32_t.cc: validates
2554 codecvt<char32_t, char8_t, mbstate_t>.
2555 * testsuite/22_locale/codecvt/utf8-char8_t.cc: New test cloned from
2556 utf8.cc; validates codecvt<char16_t, char8_t, std::mbstate_t> and
2557 codecvt<char32_t, char8_t, std::mbstate_t>.
2558 * testsuite/27_io/filesystem/path/native/string-char8_t.cc: New
2559 test cloned from string.cc; validates filesystem::path construction
2561 * testsuite/experimental/feat-char8_t.cc: New test; validates that
2562 the __cpp_lib_char8_t feature test macro is defined with the
2564 * testsuite/experimental/filesystem/path/native/string-char8_t.cc:
2565 New test cloned from string.cc; validates filesystem::path
2566 construction from char8_t input.
2567 * testsuite/experimental/string_view/literals/types-char8_t.cc: New
2568 test cloned from types.cc; validates operator""sv for char8_t
2569 returns u8string_view.
2570 * testsuite/experimental/string_view/literals/values-char8_t.cc:
2571 New test cloned from values.cc; validates construction and
2572 comparison of u8string_view values.
2573 * testsuite/experimental/string_view/requirements/
2574 explicit_instantiation/char8_t/1.cc: New test cloned from
2575 char16_t/1.cc; validates explicit instantiation of
2576 basic_string_view<char8_t>.
2577 * testsuite/ext/char8_t/atomic-1.cc: New test; validates that
2578 ATOMIC_CHAR8_T_LOCK_FREE is not defined if char8_t support is not
2581 2019-02-19 Tom Honermann <tom@honermann.net>
2583 P0482R5 char8_t: Standard library support
2584 * config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add
2585 typeinfo symbols for char8_t.
2586 * config/abi/pre/gnu.ver: Add CXXABI_1.3.12.
2587 (GLIBCXX_3.4.26): Add symbols for specializations of
2588 numeric_limits and codecvt that involve char8_t.
2589 (CXXABI_1.3.12): Add typeinfo symbols for char8_t.
2590 * include/bits/atomic_base.h: Add atomic_char8_t.
2591 * include/bits/basic_string.h: Add std::hash<u8string> and
2592 operator""s(const char8_t*, size_t).
2593 * include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and
2595 * include/bits/char_traits.h: Add char_traits<char8_t>.
2596 * include/bits/codecvt.h: Add
2597 codecvt<char16_t, char8_t, mbstate_t>,
2598 codecvt<char32_t, char8_t, mbstate_t>,
2599 codecvt_byname<char16_t, char8_t, mbstate_t>, and
2600 codecvt_byname<char32_t, char8_t, mbstate_t>.
2601 * include/bits/cpp_type_traits.h: Add __is_integer<char8_t> to
2602 recognize char8_t as an integral type.
2603 * include/bits/fs_path.h: (path::__is_encoded_char): Recognize
2605 (path::u8string): Return std::u8string when char8_t support is
2607 (path::generic_u8string): Likewise.
2608 (path::_S_convert): Handle conversion from char8_t input.
2609 (path::_S_str_convert): Likewise.
2610 * include/bits/functional_hash.h: Add hash<char8_t>.
2611 * include/bits/locale_conv.h (__str_codecvt_out): Add overloads for
2613 * include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump
2614 for new char8_t specializations.
2615 * include/bits/localefwd.h: Add missing declarations of
2616 codecvt<char16_t, char, mbstate_t> and
2617 codecvt<char32_t, char, mbstate_t>. Add char8_t declarations
2618 codecvt<char16_t, char8_t, mbstate_t> and
2619 codecvt<char32_t, char8_t, mbstate_t>.
2620 * include/bits/postypes.h: Add u8streampos
2621 * include/bits/stringfwd.h: Add declarations of
2622 char_traits<char8_t> and u8string.
2623 * include/c_global/cstddef: Add __byte_operand<char8_t>.
2624 * include/experimental/bits/fs_path.h (path::__is_encoded_char):
2626 (path::u8string): Return std::u8string when char8_t support is
2628 (path::generic_u8string): Likewise.
2629 (path::_S_convert): Handle conversion from char8_t input.
2630 (path::_S_str_convert): Likewise.
2631 * include/experimental/string: Add u8string.
2632 * include/experimental/string_view: Add u8string_view,
2633 hash<experimental::u8string_view>, and
2634 operator""sv(const char8_t*, size_t).
2635 * include/std/atomic: Add atomic<char8_t> and atomic_char8_t.
2636 * include/std/charconv (__is_int_to_chars_type): Recognize char8_t
2637 as a character type.
2638 * include/std/limits: Add numeric_limits<char8_t>.
2639 * include/std/string_view: Add u8string_view,
2640 hash<experimental::u8string_view>, and
2641 operator""sv(const char8_t*, size_t).
2642 * include/std/type_traits: Add __is_integral_helper<char8_t>,
2643 __make_unsigned<char8_t>, and __make_signed<char8_t>.
2644 * libsupc++/atomic_lockfree_defines.h: Define
2645 ATOMIC_CHAR8_T_LOCK_FREE.
2646 * src/c++11/Makefile.am: Compile with -fchar8_t when compiling
2647 codecvt.cc and limits.cc so that char8_t specializations of
2648 numeric_limits and codecvt and emitted.
2649 * src/c++11/Makefile.in: Likewise.
2650 * src/c++11/codecvt.cc: Define members of
2651 codecvt<char16_t, char8_t, mbstate_t>,
2652 codecvt<char32_t, char8_t, mbstate_t>,
2653 codecvt_byname<char16_t, char8_t, mbstate_t>, and
2654 codecvt_byname<char32_t, char8_t, mbstate_t>.
2655 * src/c++11/limits.cc: Define members of
2656 numeric_limits<char8_t>.
2657 * src/c++98/Makefile.am: Compile with -fchar8_t when compiling
2658 locale_init.cc and localename.cc.
2659 * src/c++98/Makefile.in: Likewise.
2660 * src/c++98/locale_init.cc: Add initialization for the
2661 codecvt<char16_t, char8_t, mbstate_t> and
2662 codecvt<char32_t, char8_t, mbstate_t> facets.
2663 * src/c++98/localename.cc: Likewise.
2664 * testsuite/util/testsuite_abi.cc: Validate ABI bump.
2666 2019-02-18 Wilco Dijkstra <wdijkstr@arm.com>
2668 * 27_io/filesystem/operations/all.cc: Add dg-require-filesystem-ts.
2669 * 27_io/filesystem/operations/resize_file.cc: Likewise.
2670 * 27_io/filesystem/path/generation/normal2.cc: Likewise.
2672 2019-02-14 Jonathan Wakely <jwakely@redhat.com>
2674 * doc/xml/manual/status_cxx2020.xml: Update P0887R1 status.
2675 * doc/html/*: Regenerate.
2677 * doc/xml/manual/status_cxx2017.xml: Add P0063R3 to status table.
2678 * doc/html/*: Regenerate.
2680 * doc/xml/manual/intro.xml: Document LWG 2586 status.
2681 * include/bits/uses_allocator.h (__uses_alloc): Use const lvalue
2682 allocator type in is_constructible checks.
2683 * testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust dg-error.
2684 * testsuite/20_util/scoped_allocator/dr2586.cc: New test.
2685 * testsuite/20_util/tuple/cons/allocators.cc: Add test using
2686 problematic type from LWG 2586 discussion.
2687 * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error.
2688 * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
2690 * configure.ac: Check for C11 timespec_get function.
2691 * crossconfig.m4 (freebsd, linux, gnu, cygwin, solaris, netbsd)
2693 * config.h.in: Regenerate.
2694 * configure: Regenerate.
2695 * include/c_global/ctime (timespec, timespec_get): Add to namespace
2696 std for C++17 and up.
2698 * doc/xml/manual/intro.xml: Document LWG 2537 status.
2699 * include/bits/stl_queue.h
2700 (priority_queue(const Compare&, const Container&, const Alloc&))
2701 (priority_queue(const Compare&, Container&&, const Alloc&)): Call
2703 * testsuite/23_containers/priority_queue/dr2537.cc: New test.
2705 * doc/xml/manual/intro.xml: Document LWG 2566 status.
2706 * include/bits/stl_queue.h (queue, priority_queue): Add static
2707 assertions to enforce LWG 2566 requirement on value_type.
2708 * include/bits/stl_stack.h (stack): Likewise.
2711 * testsuite/20_util/enable_shared_from_this/89303.cc: New test.
2713 * doc/xml/manual/intro.xml: Document LWG 2735 status.
2714 * include/bits/std_abs.h: Add comment about LWG 2735.
2715 * testsuite/26_numerics/headers/cstdlib/dr2735.cc: New test.
2717 2019-02-13 Jonathan Wakely <jwakely@redhat.com>
2720 * include/std/version [__cpp_impl_destroying_delete]
2721 (__cpp_lib_destroying_delete): Only define for C++2a and later.
2722 * libsupc++/new [__cpp_impl_destroying_delete]
2723 (__cpp_lib_destroying_delete): Likewise.
2724 (destroying_delete_t, destroying_delete): Likewise, but define even
2725 when __cpp_impl_destroying_delete is not defined.
2726 * testsuite/18_support/destroying_delete.cc: New test.
2728 2019-02-11 Jonathan Wakely <jwakely@redhat.com>
2731 * testsuite/17_intro/headers/c++2011/parallel_mode.cc: New test.
2732 * testsuite/17_intro/headers/c++2014/parallel_mode.cc: New test.
2733 * testsuite/17_intro/headers/c++2017/parallel_mode.cc: New test.
2734 * testsuite/28_regex/headers/regex/parallel_mode.cc: Remove.
2736 2019-02-09 Jonathan Wakely <jwakely@redhat.com>
2739 * include/bits/fs_path.h (path::has_root_name)
2740 (path::has_root_directory, path::has_root_path)
2741 (path::has_relative_path, path::has_parent_path)
2742 (path::has_filename, path::has_stem, path::has_extension)
2743 (path::is_absolute, path::is_relative, path::_M_find_extension): Add
2745 * src/c++17/fs_path.cc (path::has_root_name)
2746 (path::has_root_directory, path::has_root_path)
2747 (path::has_relative_path, path::has_parent_path)
2748 (path::has_filename, path::_M_find_extension): Add noexcept.
2750 2019-02-06 Jonathan Wakely <jwakely@redhat.com>
2752 PR libstdc++/89102 (partial)
2753 * include/std/type_traits (common_type<>): Define.
2754 (common_type<T>): Derive from common_type<T, T>.
2755 * testsuite/20_util/common_type/requirements/explicit_instantiation.cc:
2756 Test zero-length template argument list.
2757 * testsuite/20_util/common_type/requirements/sfinae_friendly_1.cc:
2758 Test additional single argument cases.
2759 * testsuite/20_util/common_type/requirements/sfinae_friendly_2.cc:
2760 Adjust expected error.
2762 2019-02-05 Jonathan Wakely <jwakely@redhat.com>
2765 * include/bits/stl_queue.h (queue, priority_queue): Add deduction
2767 * include/bits/stl_stack.h (stack): Likewise.
2768 * testsuite/23_containers/priority_queue/deduction.cc: New test.
2769 * testsuite/23_containers/queue/deduction.cc: New test.
2770 * testsuite/23_containers/stack/deduction.cc: New test.
2773 * include/std/type_traits (__is_convertible_helper)
2774 (__is_convertible_helper<_From, _To, false>): Revert changes to
2775 support is_nothrow_convertible.
2776 (__is_nt_convertible_helper): New helper.
2777 (is_nothrow_convertible): Use __is_nt_convertible_helper.
2779 * testsuite/23_containers/vector/modifiers/push_back/49836.cc: Restore
2780 use of CopyConsOnlyType, but also test DelAnyAssign for completeness.
2783 * include/bits/alloc_traits.h (__is_copy_insertable_impl): Rename to
2784 __is_alloc_insertable_impl. Replace single type member with two
2785 members, one for each of copy and move insertable.
2786 (__is_move_insertable): New trait for internal use.
2787 * include/bits/stl_vector.h (vector::_S_nothrow_relocate(true_type))
2788 (vector::_S_nothrow_relocate(true_type)): New functions to
2789 conditionally check if __relocate_a can throw.
2790 (vector::_S_use_relocate()): Dispatch to _S_nothrow_relocate based
2791 on __is_move_insertable.
2792 (vector::_S_do_relocate): New overloaded functions to conditionally
2794 (vector::_S_relocate): New function that dispatches to _S_do_relocate
2795 based on _S_use_relocate.
2796 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
2797 (vector::_M_default_append): Call _S_relocate instead of __relocate_a.
2798 * testsuite/23_containers/vector/modifiers/push_back/89130.cc: New.
2801 * include/bits/stl_uninitialized.h (__relocate_a_1): Make unused
2802 parameter unnamed. Add message to static assertion.
2803 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
2804 (vector::_M_default_append): Use _GLIBCXX17_CONSTEXPR for if constexpr
2807 2019-02-05 Marc Glisse <marc.glisse@inria.fr>
2810 * include/bits/stl_uninitialized.h (__is_trivially_relocatable):
2812 (__is_bitwise_relocatable): ... to this.
2813 (__relocate_a_1): Adapt.
2814 * include/bits/stl_deque.h (__is_trivially_relocatable): Rename...
2815 (__is_bitwise_relocatable): ... to this.
2817 2019-01-30 Jonathan Wakely <jwakely@redhat.com>
2820 * src/c++17/fs_path.cc (path::replace_extension): Erase extension from
2821 final component as well as from _M_pathname. Append the dot using
2822 operator+= instead of only to _M_pathname.
2823 (path::_M_find_extension): Reformat slightly.
2824 * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
2825 Add more test cases.
2827 2019-01-30 Ulrich Drepper <drepper@redhat.com>
2829 * doc/xml/manual/status_cxx2020.xml: Update P0600 entry.
2831 2019-01-29 Jonathan Wakely <jwakely@redhat.com>
2833 * testsuite/26_numerics/headers/complex/synopsis.cc: Remove incorrect
2834 constexpr specifiers from arg and proj.
2836 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add missing exports for
2837 __shared_ptr instantiations used by gcc4-compatible ABI.
2839 * include/experimental/forward_list (experimental::erase): Qualify
2841 * include/experimental/list (experimental::erase): Likewise.
2842 * include/std/forward_list (std::erase): Likewise.
2843 * include/std/list (std::erase): Likewise.
2845 * testsuite/20_util/reference_wrapper/result_type.cc: Disable for
2847 * testsuite/20_util/reference_wrapper/typedefs-2.cc: Likewise.
2848 * testsuite/20_util/reference_wrapper/typedefs-3.cc: Likewise.
2849 * testsuite/20_util/reference_wrapper/typedefs.cc: Likewise.
2850 * testsuite/30_threads/async/54297.cc: Suppress nodiscard warning.
2851 * testsuite/ext/array_allocator/26875.cc: Likewise.
2852 * testsuite/ext/pool_allocator/allocate_chunk.cc: Likewise.
2853 * testsuite/util/replacement_memory_operators.h: Likewise.
2854 * testsuite/util/testsuite_allocator.h: Likewise.
2856 * include/std/memory_resource (__pool_resource::_M_unpooled): Use
2857 normal mode vector, even for debug mode.
2858 * include/std/vector [_GLIBCXX_DEBUG] (_GLIBCXX_STD_C::pmr::vector):
2859 Define alias template for normal mode vector.
2861 2019-01-28 Jonathan Wakely <jwakely@redhat.com>
2864 * config/locale/generic/c_locale.h (__convert_from_v)
2865 [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
2866 * config/os/hpux/os_defines.h: Define _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
2867 * include/bits/locale_facets.tcc (num_put::_M_insert_float)
2868 [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF.
2870 2019-01-24 Jonathan Wakely <jwakely@redhat.com>
2873 * include/bits/stl_vector.h (vector::__use_relocate): Replace static
2874 data member with static member function _S_use_relocate().
2875 * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert)
2876 (vector::_M_default_append): Use _S_use_relocate() instead of
2879 * testsuite/27_io/filesystem/path/compare/strings.cc: Only compare
2882 2019-01-22 Jonathan Wakely <jwakely@redhat.com>
2885 * testsuite/util/testsuite_hooks.h [stderr] (VERIFY): Use fprintf to
2886 write to stderr instead of using printf.
2888 2019-01-21 Jakub Jelinek <jakub@redhat.com>
2891 * include/bits/char_traits.h (__constant_string_p,
2892 __constant_char_array_p): Use __builtin_is_constant_evaluated if
2895 2019-01-20 Ulrich Drepper <drepper@redhat.com>
2897 Implement C++20 P0600r1.
2898 * include/backward/hash_map: Add nodiscard attribute to empty.
2899 * include/backward/hash_set: Likewise.
2900 * backward/hashtable.h: Likewise.
2901 * include/bits/basic_string.h: Likewise.
2902 * include/bits/forward_list.h: Likewise.
2903 * include/bits/hashtable.h: Likewise.
2904 * include/bits/regex.h: Likewise.
2905 * include/bits/stl_deque.h: Likewise.
2906 * include/bits/stl_list.h: Likewise.
2907 * include/bits/stl_map.h: Likewise.
2908 * include/bits/stl_multimap.h: Likewise.
2909 * include/bits/stl_multiset.h: Likewise.
2910 * include/bits/stl_queue.h: Likewise.
2911 * include/bits/stl_set.h: Likewise.
2912 * include/bits/stl_stack.h: Likewise.
2913 * include/bits/stl_tree.h: Likewise.
2914 * include/bits/stl_vector.h: Likewise.
2915 * include/bits/unordered_map.h: Likewise.
2916 * include/bits/unordered_set.h: Likewise.
2917 * include/debug/array: Likewise.
2918 * include/experimental/any: Likewise.
2919 * include/experimental/bits/fs_path.h: Likewise.
2920 * include/experimental/internet: Likewise.
2921 * include/experimental/string_view: Likewise.
2922 * include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp:
2924 * include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp:
2926 * include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp:
2928 * include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp:
2930 * include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp:
2932 * include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp:
2934 * include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp:
2936 * include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp:
2938 * include/ext/pb_ds/detail/left_child_next_sibling_heap_/
2939 info_fn_imps.hpp: Likewise.
2940 * include/ext/pb_ds/detail/left_child_next_sibling_heap_/
2941 left_child_next_sibling_heap_.hpp: Likewise.
2942 * include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp:
2944 * include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp:
2946 * include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp:
2948 * include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hp:
2950 * include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp:
2952 * include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp:
2954 * include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp:
2956 * include/ext/pb_ds/detail/tree_trace_base.hpp: Likewise.
2957 * include/ext/pb_ds/trie_policy.hpp: Likewise.
2958 * include/ext/rope: Likewise.
2959 * include/ext/slist: Likewise.
2960 * include/ext/vstring.h: Likewise.
2961 * include/profile/array: Likewise.
2962 * include/std/array: Likewise.
2963 * include/tr1/array: Likewise.
2964 * include/tr1/hashtable.h: Likewise.
2965 * include/tr1/regex: Likewise.
2966 * include/tr2/dynamic_bitset: Likewise.
2967 * include/bits/alloc_traits.h: Add nodiscard attribute to
2969 * include/experimental/memory_resource: Likewise.
2970 * include/ext/alloc_traits.h: Likewise.
2971 * include/ext/array_allocator.h: Likewise.
2972 * include/ext/bitmap_allocator.h: Likewise.
2973 * include/ext/debug_allocator.h: Likewise.
2974 * include/ext/extptr_allocator.h: Likewise.
2975 * include/ext/mt_allocator.h: Likewise.
2976 * include/ext/new_allocator.h: Likewise.
2977 * include/ext/pool_allocator.h: Likewise.
2978 * include/ext/throw_allocator.h: Likewise.
2979 * include/std/scoped_allocator: Likewise.
2980 * libsupc++/eh_alloc.cc: Likewise.
2981 * include/std/future: Add nodiscard attribute to async.
2982 * libsupc++/new: Add nodiscard attribute to new.
2984 2019-01-18 Jonathan Wakely <jwakely@redhat.com>
2989 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export new symbol.
2990 * include/bits/shared_ptr.h
2991 (shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...))
2992 (allocate_shared): Change to use new tag type.
2993 * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_eq):
2994 Declare new member function.
2995 (_Sp_alloc_shared_tag): Define new type.
2996 (_Sp_counted_ptr_inplace): Declare __shared_count<_Lp> as a friend.
2997 (_Sp_counted_ptr_inplace::_M_get_deleter) [!__cpp_rtti]: Use
2998 _Sp_make_shared_tag::_S_eq to check type_info.
2999 (__shared_count(Ptr, Deleter),__shared_count(Ptr, Deleter, Alloc)):
3000 Constrain to prevent being called with _Sp_alloc_shared_tag.
3001 (__shared_count(_Sp_make_shared_tag, const _Alloc&, Args&&...)):
3002 Replace constructor with ...
3003 (__shared_count(Tp*&, _Sp_alloc_shared_tag<_Alloc>, Args&&...)): Use
3004 reference parameter so address of the new object can be returned to
3005 the caller. Obtain the allocator from the tag type.
3006 (__shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)): Replace
3007 constructor with ...
3008 (__shared_ptr(_Sp_alloc_shared_tag<Alloc>, Args&&...)): Pass _M_ptr
3009 to the __shared_count constructor.
3010 (__allocate_shared): Change to use new tag type.
3011 * src/c++11/shared_ptr.cc (_Sp_make_shared_tag::_S_eq): Define.
3013 2019-01-17 Jonathan Wakely <jwakely@redhat.com>
3015 * src/c++17/fs_ops.cc
3016 (equivalent(const path&, const path&, error_code&))
3017 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use GetFileInformationByHandle to
3018 compare files instead of relying on incomplete info returned by stat.
3021 * src/c++17/fs_ops.cc (absolute(const path&, error_code&)): Do nothing
3022 if the path is already absolute.
3023 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize root-directory.
3024 [!_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Pass error_code to current_path.
3027 * src/c++17/fs_ops.cc (canonical(const path&, error_code&))
3028 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize path, to match behaviour
3029 of filesystem::exists.
3030 (create_directories(const path&, error_code&)): Add assertions.
3031 (status(const path&, error_code&)) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]:
3032 Add workaround for bug in _wstat for paths with trailing slash.
3033 * testsuite/27_io/filesystem/operations/create_directories.cc: Adjust
3034 for expected behaviour on mingw.
3035 * testsuite/experimental/filesystem/operations/create_directories.cc:
3037 * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Use
3038 "TMP" instead of "TMPDIR" and clean environment before each test. Do
3039 not test permissions on mingw targets.
3041 2019-01-16 Jonathan Wakely <jwakely@redhat.com>
3043 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add exports for fstream
3044 constructors and open members taking wide strings. Fix patterns for
3045 filesystem::path members to match wstring_view parameters. Add
3046 exports for shared_ptr members used by directory iterators.
3047 * src/c++17/fs_ops.cc (remove(const path&, error_code&)): Clear the
3048 error code parameter if the file doesn't exist.
3049 * src/filesystem/ops.cc (remove(const path&, error_code&)):
3051 * testsuite/27_io/filesystem/operations/canonical.cc: Fix expected
3052 values for mingw targets, where "/" is not an absolute path. Do not
3053 test symlinks on mingw targets.
3054 * testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
3055 * testsuite/27_io/filesystem/operations/copy.cc: Do not test symlinks
3057 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
3058 * testsuite/27_io/filesystem/operations/create_directories.cc: Check
3059 that each component of the path is created.
3060 * testsuite/experimental/filesystem/operations/create_directories.cc:
3062 * testsuite/27_io/filesystem/operations/exists.cc: Do not test
3063 permissions on mingw targets.
3064 * testsuite/experimental/filesystem/operations/exists.cc: Likewise.
3065 * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
3066 * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
3067 * testsuite/27_io/filesystem/operations/permissions.cc: XFAIL for
3069 * testsuite/experimental/filesystem/operations/permissions.cc:
3071 * testsuite/27_io/filesystem/operations/remove.cc: Do not test
3072 symlinks or permissions on mingw targets.
3073 * testsuite/experimental/filesystem/operations/remove.cc: Likewise.
3074 * testsuite/27_io/filesystem/operations/remove_all.cc: Do not test
3075 symlinks on mingw targets.
3076 * testsuite/experimental/filesystem/operations/remove_all.cc:
3078 * testsuite/27_io/filesystem/operations/status.cc: Do not test
3079 permissions on mingw targets.
3080 * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Do not
3081 test symlinks on mingw targets.
3082 * testsuite/experimental/filesystem/operations/space.cc: Fix test
3085 2019-02-14 Ulrich Drepper <drepper@redhat.com>
3088 Warn about unused comparisons of shared_ptr/unique_ptr
3089 * include/bits/c++config [_GLIBCXX_NODISCARD]: Define.
3090 * include/bits/shared_ptr.h: Use it for operator ==, !=,
3091 <, <=, >, >= for shared_ptr.
3092 * include/bits/unique_ptr.h: Likewise for unique_ptr.
3094 2019-01-15 Jonathan Wakely <jwakely@redhat.com>
3096 * include/bits/shared_ptr_base.h (__cpp_lib_shared_ptr_arrays): Define
3097 as 201611L, because P0497R0 changes are supported.
3098 * include/std/version (__cpp_lib_shared_ptr_arrays): Likewise.
3100 * include/bits/erase_if.h [__cplusplus > 201703L]
3101 (__cpp_lib_erase_if): Only define for C++2a.
3102 * include/std/iterator [__cplusplus >= 201402L && !_GLIBCXX_DEBUG]
3103 (__cpp_lib_null_iterators): Define.
3104 * include/std/version [__cplusplus >= 201402L && !_GLIBCXX_DEBUG]
3105 (__cpp_lib_null_iterators): Define.
3106 [__cpp_impl_destroying_delete] (__cpp_lib_destroying_delete): Define.
3108 * doc/xml/manual/status_cxx2017.xml: Document P0032R3 and P0307R2
3110 * include/bits/stl_uninitialized.h (__cpp_lib_raw_memory_algorithms):
3112 * include/std/any (__cpp_lib_any): Define as 201606L, because P0032R3
3113 changes are supported.
3114 * include/std/optional (__cpp_lib_optional): Likewise.
3115 * include/std/variant (__cpp_lib_variant): Likewise.
3116 * include/std/version [!__STRICT_ANSI__]
3117 (__cpp_lib_uncaught_exceptions): Define as long integer.
3118 [__cplusplus >= 201703L] (__cpp_lib_any)
3119 (__cpp_lib_raw_memory_algorithms, __cpp_lib_uncaught_exceptions)
3120 (__cpp_lib_variant): Define for C++17.
3121 [__cplusplus >= 201703L] (__cpp_lib_optional): Update value and define
3123 * libsupc++/exception (__cpp_lib_uncaught_exceptions): Define as long
3126 * doc/xml/manual/status_cxx2020.xml: Update P1123R0 status.
3128 2019-01-12 Jonathan Wakely <jwakely@redhat.com>
3132 * src/filesystem/path.cc: Fix typo. If first path is empty, show []
3134 * testsuite/experimental/filesystem/filesystem_error/cons.cc: New
3137 2019-01-11 Jonathan Wakely <jwakely@redhat.com>
3139 * doc/xml/manual/intro.xml: Include new section.
3140 * doc/xml/manual/status_cxx2017.xml: Document more
3141 implementation-defined properties of the library.
3142 * doc/xml/manual/status_cxx2020.xml: Document C++2a status.
3143 * doc/html/*: Regenerate.
3145 * include/bits/refwrap.h [__cplusplus > 201703L]
3146 (_Refwrap_base_arg1, _Refwrap_base_arg2, _Reference_wrapper_base)
3147 (_Reference_wrapper_base_memfun): Do not define for C++2a.
3148 (reference_wrapper): Do not derive from _Reference_wrapper_base_memfun
3150 (reference_wrapper::operator()): Add static assertion.
3151 * testsuite/20_util/reference_wrapper/incomplete.cc: New test.
3153 * include/std/chrono (duration_values::zero(), duration_values::min())
3154 (duration_values::max()): Add noexcept.
3155 (duration::zero(), duration::min(), duration::max()): Likewise.
3156 (time_point::zero(), time_point::min(), time_point::max()): Likewise.
3157 * testsuite/20_util/duration/requirements/noexcept.cc: New test.
3158 * testsuite/20_util/time_point/requirements/noexcept.cc: New test.
3160 * include/std/version (__cpp_lib_erase_if): Move to C++20 group.
3162 2019-01-11 Jakub Jelinek <jakub@redhat.com>
3164 * include/std/type_traits (__cpp_lib_is_constant_evaluated): Define.
3165 * include/std/version (__cpp_lib_is_constant_evaluated): Define.
3167 2019-01-11 Jonathan Wakely <jwakely@redhat.com>
3170 * include/bits/functional_hash.h (hash<nullptr_t>): Define
3171 specialization for C++17 (P0513R0, LWG 2817).
3172 * testsuite/20_util/hash/nullptr.cc: New test.
3175 * config/abi/pre/gnu.ver (GLIBCXX_3.4.6): Remove unused duplicate
3176 pattern for std::basic_stringbuf::str().
3178 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Correct recent changes to
3179 basic_ostream::operator<< patterns.
3181 2019-01-10 Jonathan Wakely <jwakely@redhat.com>
3183 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fix
3184 test failures on targets with 32-bit time_t.
3186 * include/bits/erase_if.h: Define __cpp_lib_erase_if.
3187 * include/std/deque: Likewise.
3188 * include/std/forward_list: Likewise.
3189 * include/std/list: Likewise.
3190 * include/std/string: Likewise.
3191 * include/std/vector: Likewise.
3192 * include/std/version: Likewise.
3193 * testsuite/21_strings/basic_string/erasure.cc: Test macro.
3194 * testsuite/23_containers/deque/erasure.cc: Likewise.
3195 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
3196 * testsuite/23_containers/list/erasure.cc: Likewise.
3197 * testsuite/23_containers/map/erasure.cc: Likewise.
3198 * testsuite/23_containers/set/erasure.cc: Likewise.
3199 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
3200 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
3201 * testsuite/23_containers/vector/erasure.cc: Likewise.
3203 * include/experimental/internet [AI_NUMERICSERV]
3204 (resolver_base::numeric_service): Define conditionally.
3205 * testsuite/experimental/net/internet/resolver/base.cc: Test it
3207 * testsuite/experimental/net/internet/resolver/ops/lookup.cc:
3210 2019-01-10 Ville Voutilainen <ville.voutilainen@gmail.com>
3211 Jonathan Wakely <jwakely@redhat.com>
3214 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten patterns.
3215 (GLIBCXX_3.4.26): Add new exports.
3216 * include/Makefile.am: Add ostream-inst.cc. Move string-inst.cc to
3217 correct list of sources.
3218 * include/Makefile.in: Regenerate.
3219 * include/std/ostream (operator<<(nullptr_t)): New member function.
3220 * src/c++17/ostream-inst.cc: New file.
3221 * testsuite/27_io/basic_ostream/inserters_other/char/lwg2221.cc: New
3224 2019-01-10 Jonathan Wakely <jwakely@redhat.com>
3226 * testsuite/util/testsuite_fs.h (nonexistent_path): Include name
3227 of the source file containing the caller.
3228 * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Remove
3229 directories created by test.
3230 * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
3232 * testsuite/experimental/filesystem/iterators/directory_iterator.cc:
3234 * testsuite/experimental/filesystem/iterators/
3235 recursive_directory_iterator.cc: Likewise.
3237 2019-01-10 Jakub Jelinek <jakub@redhat.com>
3239 PR tree-optimization/88775
3240 * include/bits/stl_function.h (greater<_Tp*>::operator(),
3241 less<_Tp*>::operator(), greater_equal<_Tp*>::operator(),
3242 less_equal<_Tp*>::operator()): Use __builtin_is_constant_evaluated
3243 instead of __builtin_constant_p if available. Don't bother with
3244 the pointer comparison in C++11 and earlier.
3246 2019-01-09 Sandra Loosemore <sandra@codesourcery.com>
3250 * include/ext/bitmap_allocator.h: Mechanically replace "can not"
3253 2019-01-09 Jonathan Wakely <jwakely@redhat.com>
3255 * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix expected output
3256 for filesystem::path. Give variables more distinctive names.
3258 * include/std/optional (_Optional_payload_base::_M_copy_assign): New
3259 member function to perform non-trivial assignment.
3260 (_Optional_payload_base::_M_move_assign): Likewise.
3261 (_Optional_payload<T, true, false, true>::operator=)
3262 (_Optional_payload<T, true, true, false>::operator=)
3263 (_Optional_payload<T, true, false, false>::operator=): Call
3264 _M_copy_assign and/or _M_move_assign to do non-trivial assignments.
3267 * testsuite/26_numerics/complex/operators/more_constexpr.cc: Do not
3268 test std::complex<long double> if long double format is IBM128.
3269 * testsuite/26_numerics/complex/requirements/more_constexpr.cc:
3272 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
3274 * testsuite/libstdc++-prettyprinters/compat.cc: Test printer support
3275 for old std::unique_ptr layout.
3276 * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix std::variant test
3277 to become valueless. Add filesystem::path tests.
3280 * include/std/optional (_Optional_payload_base): New class template
3281 for common code hoisted from _Optional_payload specializations. Use
3282 a template for the union, to allow a partial specialization for
3283 types with non-trivial destructors. Add constructors for in-place
3284 initialization to the union.
3285 (_Optional_payload(bool, const _Optional_payload&)): Use _M_construct
3286 to perform non-trivial copy construction, instead of relying on
3287 non-standard copy elision in a delegating constructor.
3288 (_Optional_payload(bool, _Optional_payload&&)): Likewise for
3289 non-trivial move construction.
3290 (_Optional_payload): Derive from _Optional_payload_base and use it
3291 for everything except the non-trivial assignment operators, which are
3293 (_Optional_payload<false, C, M>): Derive from the specialization
3294 _Optional_payload<true, false, false> and add a destructor.
3295 (_Optional_base_impl::_M_destruct, _Optional_base_impl::_M_reset):
3296 Forward to corresponding members of _Optional_payload.
3297 (_Optional_base_impl::_M_is_engaged, _Optional_base_impl::_M_get):
3298 Hoist common members from _Optional_base.
3299 (_Optional_base): Make all members and base class public.
3300 (_Optional_base::_M_get, _Optional_base::_M_is_engaged): Move to
3301 _Optional_base_impl.
3302 * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Add
3303 support for new std::optional layout.
3304 * testsuite/libstdc++-prettyprinters/compat.cc: New test.
3307 * include/bits/locale_conv.h: Use <> for includes not "".
3308 * include/ext/random: Likewise.
3309 * include/ext/vstring.h: Likewise.
3311 2019-01-08 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
3313 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten existing patterns.
3314 (GLIBCXX_3.4.21): Likewise.
3316 2019-01-08 Jonathan Wakely <jwakely@redhat.com>
3319 * src/filesystem/ops.cc (last_write_time): Fix preprocessor condition
3320 to match the one that controls whether utimbuf and utime are declared.
3322 2019-01-07 Jonathan Wakely <jwakely@redhat.com>
3325 * include/bits/char_traits.h (char_traits::move): Do not pass null
3326 pointers to memmove.
3327 * include/bits/locale_facets.h
3328 (ctype<char>::widen(const char*, const char*, char*)): Do not
3329 pass null pointers to memcpy.
3330 (ctype<char>::narrow(const char*, const char*, char, char*)):
3332 (ctype<char>::do_widen(const char*, const char*, char*)):
3334 (ctype<char>::do_narrow(const char*, const char*, char, char*)):
3337 * doc/xml/manual/spine.xml: Update copyright years.
3338 * doc/xml/manual/status_cxx2017.xml: Adjust note about -lstdc++fs.
3339 * doc/xml/manual/using.xml: Remove requirement to link with -lstdc++fs
3340 for C++17 filesystem library.
3341 * doc/html/*: Regenerate.
3343 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for truncate.
3344 * config.h.in: Regenerate.
3345 * config/abi/pre/gnu.ver: Order patterns for filesystem operations
3346 alphabetically and add missing entries for copy_symlink,
3347 hard_link_count, rename, and resize_file.
3348 * configure: Regenerate.
3349 * src/c++17/fs_ops.cc (resize_file): Remove #if so posix::truncate is
3350 used unconditionally.
3351 * src/filesystem/ops-common.h (__gnu_posix::truncate)
3352 [!_GLIBCXX_HAVE_TRUNCATE]: Provide fallback definition that only
3353 supports truncating to zero length.
3354 * testsuite/27_io/filesystem/operations/all.cc: New test.
3355 * testsuite/27_io/filesystem/operations/resize_file.cc: New test.
3357 2019-01-06 Jonathan Wakely <jwakely@redhat.com>
3360 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for utime and
3361 lstat and define _GLIBCXX_USE_UTIME and _GLIBCXX_USE_LSTAT.
3362 * config.h.in: Regenerate.
3363 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export symbols for
3364 remaining std::filesystem types and functions.
3365 * configure: Regenerate.
3366 * src/c++17/Makefile.am: Add C++17 filesystem sources.
3367 * src/c++17/Makefile.in: Regenerate.
3368 * src/c++17/cow-fs_dir.cc: Move src/filesystem/cow-std-dir.cc to
3369 here, and change name of included file.
3370 * src/c++17/cow-fs_ops.cc: Move src/filesystem/cow-std-ops.cc to
3371 here, and change name of included file.
3372 * src/c++17/fs_dir.cc: Move src/filesystem/std-dir.cc to here. Change
3373 path to dir-common.h.
3374 * src/c++17/fs_ops.cc: Move src/filesystem/std-ops.cc to here. Change
3375 path to ops-common.h. Disable -Wunused-parameter warnings.
3376 (internal_file_clock): Define unconditionally.
3377 [!_GLIBCXX_HAVE_SYS_STAT_H] (internal_file_clock::from_stat): Do not
3379 (do_copy_file, do_space): Move definitions to ops.common.h.
3380 (copy, file_size, hard_link_count, last_write_time, space): Only
3381 perform operation when _GLIBCXX_HAVE_SYS_STAT_H is defined, otherwise
3383 (last_write_time, read_symlink): Remove unused attributes from
3385 * src/filesystem/Makefile.am: Remove C++17 filesystem sources.
3386 * src/filesystem/Makefile.in: Regenerate.
3387 * src/filesystem/cow-std-dir.cc: Move to src/c++17/cow-fs_dir.cc.
3388 * src/filesystem/cow-std-ops.cc: Move to src/c++17/cow-fs_ops.cc.
3389 * src/filesystem/std-dir.cc: Move to src/c++17/fs_dir.cc.
3390 * src/filesystem/std-ops.cc: Move to src/c++17/fs_ops.cc.
3391 * src/filesystem/dir-common.h [!_GLIBCXX_HAVE_DIRENT_H]: Define
3392 dummy types and functions instead of using #error.
3393 * src/filesystem/dir.cc [!_GLIBCXX_HAVE_DIRENT_H]: Use #error.
3394 * src/filesystem/ops-common.h [!_GLIBCXX_USE_LSTAT] (lstat): Define
3396 [!_GLIBCXX_HAVE_UNISTD_H]: Define dummy types and functions.
3397 (do_copy_file, do_space): Move definitions here from std-ops.cc.
3398 * src/filesystem/ops.cc: Adjust calls to do_copy_file and do_space
3399 to account for new namespace.
3400 * testsuite/27_io/filesystem/directory_entry/86597.cc: Remove
3401 -lstdc++fs from dg-options.
3402 * testsuite/27_io/filesystem/directory_entry/lwg3171.cc: Likewise.
3403 * testsuite/27_io/filesystem/file_status/1.cc: Likewise.
3404 * testsuite/27_io/filesystem/filesystem_error/cons.cc: Likewise.
3405 * testsuite/27_io/filesystem/filesystem_error/copy.cc: Likewise.
3406 * testsuite/27_io/filesystem/iterators/directory_iterator.cc:
3408 * testsuite/27_io/filesystem/iterators/pop.cc: Likewise.
3409 * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc:
3411 * testsuite/27_io/filesystem/operations/absolute.cc: Likewise.
3412 * testsuite/27_io/filesystem/operations/canonical.cc: Likewise.
3413 * testsuite/27_io/filesystem/operations/copy.cc: Likewise.
3414 * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise.
3415 * testsuite/27_io/filesystem/operations/create_directories.cc:
3417 * testsuite/27_io/filesystem/operations/create_directory.cc: Likewise.
3418 * testsuite/27_io/filesystem/operations/create_symlink.cc: Likewise.
3419 * testsuite/27_io/filesystem/operations/current_path.cc: Likewise.
3420 * testsuite/27_io/filesystem/operations/equivalent.cc: Likewise.
3421 * testsuite/27_io/filesystem/operations/exists.cc: Likewise.
3422 * testsuite/27_io/filesystem/operations/file_size.cc: Likewise.
3423 * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise.
3424 * testsuite/27_io/filesystem/operations/last_write_time.cc: Likewise.
3425 * testsuite/27_io/filesystem/operations/permissions.cc: Likewise.
3426 * testsuite/27_io/filesystem/operations/proximate.cc: Likewise.
3427 * testsuite/27_io/filesystem/operations/read_symlink.cc: Likewise.
3428 * testsuite/27_io/filesystem/operations/relative.cc: Likewise.
3429 * testsuite/27_io/filesystem/operations/remove.cc: Likewise.
3430 * testsuite/27_io/filesystem/operations/remove_all.cc: Likewise.
3431 * testsuite/27_io/filesystem/operations/space.cc: Likewise.
3432 * testsuite/27_io/filesystem/operations/status.cc: Likewise.
3433 * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise.
3434 * testsuite/27_io/filesystem/operations/temp_directory_path.cc:
3436 * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Likewise.
3440 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Make various patterns for
3441 typeinfo and vtables less greedy.
3442 (GLIBCXX_3.4.26): Export symbols for std::filesystem::path.
3443 * src/c++17/Makefile.am: Add fs_path.cc and cow-fs_path.cc.
3444 * src/c++17/Makefile.in: Regenerate.
3445 * src/c++17/cow-fs_path.cc: Move src/filesystem/cow-std-path.cc to
3446 here, and change name of included file.
3447 * src/c++17/fs_path.cc: Move src/filesystem/std-path.cc to here.
3448 * src/filesystem/Makefile.am: Remove std-path.cc and cow-std-path.cc
3450 * src/filesystem/Makefile.in: Regenerate.
3451 * src/filesystem/cow-std-path.cc: Move to src/c++17/cow-fs_path.cc.
3452 * src/filesystem/std-path.cc: Move to src/c++17/fs_path.cc.
3453 * testsuite/27_io/filesystem/path/append/path.cc: Remove -lstdc++fs
3454 from dg-options and remove dg-require-filesystem-ts.
3455 * testsuite/27_io/filesystem/path/append/source.cc: Likewise.
3456 * testsuite/27_io/filesystem/path/assign/assign.cc: Likewise.
3457 * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise.
3458 * testsuite/27_io/filesystem/path/compare/compare.cc: Likewise.
3459 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
3460 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
3461 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
3462 * testsuite/27_io/filesystem/path/concat/path.cc: Likewise.
3463 * testsuite/27_io/filesystem/path/concat/strings.cc: Likewise.
3464 * testsuite/27_io/filesystem/path/construct/80762.cc: Likewise.
3465 * testsuite/27_io/filesystem/path/construct/copy.cc: Likewise.
3466 * testsuite/27_io/filesystem/path/construct/default.cc: Likewise.
3467 * testsuite/27_io/filesystem/path/construct/format.cc: Likewise.
3468 * testsuite/27_io/filesystem/path/construct/locale.cc: Likewise.
3469 * testsuite/27_io/filesystem/path/construct/range.cc: Likewise.
3470 * testsuite/27_io/filesystem/path/construct/string_view.cc: Likewise.
3471 * testsuite/27_io/filesystem/path/decompose/extension.cc: Likewise.
3472 * testsuite/27_io/filesystem/path/decompose/filename.cc: Likewise.
3473 * testsuite/27_io/filesystem/path/decompose/parent_path.cc: Likewise.
3474 * testsuite/27_io/filesystem/path/decompose/relative_path.cc: Likewise.
3475 * testsuite/27_io/filesystem/path/decompose/root_directory.cc:
3477 * testsuite/27_io/filesystem/path/decompose/root_name.cc: Likewise.
3478 * testsuite/27_io/filesystem/path/decompose/root_path.cc: Likewise.
3479 * testsuite/27_io/filesystem/path/decompose/stem.cc: Likewise.
3480 * testsuite/27_io/filesystem/path/generation/normal.cc: Likewise.
3481 * testsuite/27_io/filesystem/path/generation/normal2.cc: Likewise.
3482 * testsuite/27_io/filesystem/path/generation/proximate.cc: Likewise.
3483 * testsuite/27_io/filesystem/path/generation/relative.cc: Likewise.
3484 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Likewise.
3485 * testsuite/27_io/filesystem/path/itr/components.cc: Likewise.
3486 * testsuite/27_io/filesystem/path/itr/traversal.cc: Likewise.
3487 * testsuite/27_io/filesystem/path/modifiers/clear.cc: Likewise.
3488 * testsuite/27_io/filesystem/path/modifiers/make_preferred.cc:
3490 * testsuite/27_io/filesystem/path/modifiers/remove_filename.cc:
3492 * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc:
3494 * testsuite/27_io/filesystem/path/modifiers/replace_filename.cc:
3496 * testsuite/27_io/filesystem/path/modifiers/swap.cc: Likewise.
3497 * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
3498 * testsuite/27_io/filesystem/path/nonmember/append.cc: Likewise.
3499 * testsuite/27_io/filesystem/path/nonmember/hash_value.cc: Likewise.
3500 * testsuite/27_io/filesystem/path/query/empty.cc: Likewise.
3501 * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise.
3502 * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise.
3503 * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise.
3504 * testsuite/27_io/filesystem/path/query/has_relative_path.cc: Likewise.
3505 * testsuite/27_io/filesystem/path/query/has_root_directory.cc:
3507 * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise.
3508 * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise.
3509 * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise.
3510 * testsuite/27_io/filesystem/path/query/is_absolute.cc: Likewise.
3511 * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise.
3514 * include/std/variant (_Variant_storage<true, _Types...>::_M_valid):
3515 Check is_trivially_copyable instead of is_scalar.
3516 (variant::emplace<N, Args>(Args&&...)): If construction of the new
3517 contained value can throw and its type is trivially copyable then
3518 construct into a temporary variant and move from it, to provide the
3519 strong exception safety guarantee.
3520 (variant::emplace<N, U, Args>(initializer_list<U>, Args&&...)):
3522 * testsuite/20_util/variant/87431.cc: New test.
3523 * testsuite/20_util/variant/run.cc: Adjust test so that throwing
3524 conversion causes valueless state.
3527 * testsuite/17_intro/headers/c++1998/charset.cc: New test.
3528 * testsuite/17_intro/headers/c++2011/charset.cc: New test.
3529 * testsuite/17_intro/headers/c++2014/charset.cc: New test.
3530 * testsuite/17_intro/headers/c++2017/charset.cc: New test.
3531 * testsuite/17_intro/headers/c++2020/charset.cc: New test.
3533 2019-01-05 Jonathan Wakely <jwakely@redhat.com>
3535 * include/bits/fs_fwd.h (__file_clock): Define new clock.
3536 (file_time_type): Redefine in terms of __file_clock.
3537 * src/filesystem/ops-common.h (file_time): Add FIXME comment about
3539 * src/filesystem/std-ops.cc (is_set(perm_options, perm_options)): Give
3541 (internal_file_lock): New helper type for accessing __file_clock.
3542 (do_copy_file): Use internal_file_lock to convert system time to
3544 (last_write_time(const path&, error_code&)): Likewise.
3545 (last_write_time(const path&, file_time_type, error_code&)): Likewise.
3547 2019-01-04 Jonathan Wakely <jwakely@redhat.com>
3549 * config/abi/pre/gnu.ver (GLIBCXX_3.4.21): Make patterns less greedy
3550 for const member functions of std::basic_string.
3551 (GLIBCXX_3.4.26): Export member functions of std::basic_string added
3553 * include/bits/basic_string.h (basic_string(__sv_wrapper, const A&)):
3554 Make non-standard constructor private.
3555 [!_GLIBCXX_USE_CXX11_ABI] (basic_string(__sv_wrapper, const A&)):
3557 * include/bits/basic_string.tcc (std::string, std::wstring): Declare
3558 explicit instantiations for C++17 as well as earlier dialects.
3559 * src/c++17/Makefile.am: Add new source files.
3560 * src/c++17/Makefile.in: Regenerate.
3561 * src/c++17/cow-string-inst.cc: New file defining explicit
3562 instantiations for basic_string member functions added in C++17.
3563 * src/c++17/string-inst.cc: Likewise.
3565 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export allocator-extended
3566 copy/move constructors for old std::basic_string.
3567 * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
3568 (basic_string::reference, basic_string::const_reference): Define
3569 as plain references for C++11 and later.
3570 (basic_string::basic_string()): Put constructor body outside
3571 preprocessor conditional groups.
3572 (basic_string::basic_string(basic_string&&)): Move _Alloc_hider
3573 instead of copying it.
3574 (basic_string::basic_string(const basic_string&, const _Alloc&)):
3576 (basic_string::basic_string(basic_string&&, const _Alloc&)):
3578 * include/bits/fs_path.h [!_GLIBCXX_USE_CXX11_ABI]: Remove special
3579 cases for old basic_string.
3580 * testsuite/21_strings/basic_string/cons/char/8.cc: Test
3581 allocator-extended constructors unconditionally. Add extra members to
3582 allocator type when using old string ABI.
3583 * testsuite/21_strings/basic_string/allocator/71964.cc: Enable test
3585 * testsuite/21_strings/basic_string/cons/wchar_t/8.cc: Likewise.
3587 * testsuite/23_containers/list/61347.cc: Avoid spurious failure when
3588 -fno-inline added to test flags.
3590 * testsuite/21_strings/basic_string/requirements/
3591 explicit_instantiation/debug.cc: Remove XFAIL for old ABI.
3593 * testsuite/27_io/filesystem/filesystem_error/copy.cc: Fix static
3594 assertion failures with old std::string ABI.
3596 * include/bits/fs_path.h (path::_List::erase): Replace both overloads
3598 (path::pop_back(), path::_M_erase_from(const_iterator)): New member
3599 functions that will only erase elements at the end.
3600 * src/filesystem/std-path.cc (path::_List::_Impl::pop_back()): Define.
3601 (path::_List::_Impl::_M_erase_from(const_iterator)): Define.
3602 (path::_List::operator=(const _List&)): Use _M_erase_from(p) instead
3604 (path::_List::pop_back()): Define.
3605 (path::_List::_M_erase_from(const_iterator)): Define.
3606 (path::operator/=(const path&)): Use pop_back to remove last component
3607 and _M_erase_from to remove multiple components.
3608 (path::_M_append(basic_string_view<value_type>)): Likewise.
3609 (path::operator+=(const path&)): Likewise.
3610 (path::_M_concat(basic_string_view<value_type>)): Likewise.
3611 (path::remove_filename()): Likewise.
3612 (path::lexically_normal()): Use _List::_Impl iterators instead of
3613 path::iterator. Use pop_back to remove components from the end. Clear
3614 trailing filename, instead of using erase(const_iterator) to remove
3615 a non-final component.
3616 * testsuite/27_io/filesystem/path/generation/normal.cc: Test
3618 * testsuite/27_io/filesystem/path/generation/normal2.cc: New test.
3620 * src/filesystem/std-path.cc (path::operator+=(const path&)): Fix
3621 incorrect treatment of empty filename after trailing slash.
3622 * testsuite/27_io/filesystem/path/concat/path.cc: Test problem case.
3624 * testsuite/21_strings/basic_string/modifiers/assign/char/
3625 move_assign_optim.cc: Avoid spurious failure when -fno-inline added
3627 * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/
3628 move_assign_optim.cc: Likewise.
3630 2019-01-03 Jonathan Wakely <jwakely@redhat.com>
3631 Jakub Jelinek <jakub@redhat.com>
3634 * include/experimental/memory: Replace UTF-8 quote characters.
3635 * include/std/future: Replace UTF-8 "em dash" characters.
3637 2019-01-03 Jonathan Wakely <jwakely@redhat.com>
3640 * include/bits/forward_list.h: Replace UTF-8 "ligature fi" character.
3641 * include/debug/forward_list: Likewise.
3642 * include/experimental/bits/shared_ptr.h: Remove UTF-8 "section sign"
3644 * include/experimental/chrono: Likewise.
3645 * include/experimental/functional: Likewise.
3646 * include/experimental/ratio: Likewise.
3647 * include/experimental/system_error: Likewise.
3648 * include/experimental/tuple: Likewise.
3649 * include/experimental/type_traits: Likewise.
3650 * include/parallel/workstealing.h: Replace UTF-8 "en dash" character.
3651 * include/parallel/multiseq_selection.h: Likewise.
3654 * config/abi/pre/gnu.ver: Add missing exports.
3655 * testsuite/22_locale/collate_byname/88681.cc: New test.
3656 * testsuite/22_locale/time_get/get/char/88681.cc: New test.
3657 * testsuite/22_locale/time_get/get/wchar_t/88681.cc: New test.
3659 2019-01-02 Jonathan Wakely <jwakely@redhat.com>
3661 * testsuite/23_containers/map/cons/deduction.cc: Test deduction from
3662 initializer_list<value_type> and from input iterator ranges.
3663 * testsuite/23_containers/multimap/cons/deduction.cc: Likewise.
3665 * testsuite/experimental/string_view/element_access/char/empty.cc:
3666 Fix year range in copyright header.
3668 2019-01-02 Joel Brobecker <brobecker@adacore.com>
3670 * testsuite/21_strings/basic_string_view/element_access/char/empty.cc:
3671 Fix year range in copyright header.
3673 2019-01-01 Jakub Jelinek <jakub@redhat.com>
3675 Update copyright years.
3677 Copyright (C) 2019 Free Software Foundation, Inc.
3679 Copying and distribution of this file, with or without modification,
3680 are permitted in any medium without royalty provided the copyright
3681 notice and this notice are preserved.