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1009 Commits

Author SHA1 Message Date
Ville Voutilainen
40f3e91334 Clean up optional's comments. 
From-SVN: r238436
 2016-07-18 17:45:56 +03:00
Ville Voutilainen
1ec0f76305 Fix the constraints for any's assignment operator template to properly 
reject assignment from a non-copyable lvalue.

From-SVN: r238365
 2016-07-15 10:44:22 +03:00
Ville Voutilainen
25a69162c9 Implement P0032R3, Homogeneous interface for variant, any and optional, 
for the parts concerning any and optional.
	* include/std/any (_Storage()): Make constexpr and have it
	initialize _M_ptr.
	(any()): Make constexpr.
	(any(const any&)): Adjust.
	(any(any&&)): Likewise.
	(__any_constructible_t): New.
	(any(_ValueType&&)): Constrain.
	(any(in_place_type_t<_Tp>, _Args&&...)): New.
	(any(in_place_type_t<_Tp>, initializer_list<_Up>, _Args&&...)):
	Likewise.
	(~any()): Adjust.
	(operator=(const any&)): Likewise.
	(operator=(any&&)): Likewise.
	(operator=(_ValueType&&)): Constrain.
	(emplace(_Args&&...)): New.
	(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
	(clear()): Remove.
	(reset()): New.
	(swap(any&)): Adjust.
	(empty()): Remove.
	(has_value()): New.
	(type()): Adjust.
	(_Manager_internal::_S_create(_Storage&, _Args&&...)): New.
	(_Manager_external::_S_create(_Storage&, _Args&&...)): Likewise.
	(make_any(_Args&&...)): Likewise.
	(make_any(initializer_list<_Up>, _Args&&...)): Likewise.
	* include/std/optional (in_place_t, in_place): Remove.
	(bad_optional_access): Add a comment referring to LEWG 72.
	(emplace(_Args&&...)): Constrain.
	(has_value()): New.
	(reset()): Likewise.
	(make_optional(_Args&&...)): Likewise.
	(make_optional(initializer_list<_Up>, _Args&&...)): Likewise.
	* include/std/utility (in_place_tag): New.
	(__in_place, __in_place_type, __in_place_index): Likewise.
	(in_place_t, in_place_type_t, in_place_index_t): Likewise.
	(in_place(__in_place*)): Likewise.
	(in_place(__in_place_type<_Tp>*)): Likewise.
	(in_place(__in_place_index<_Idx>*)): Likewise.
	* testsuite/20_util/any/assign/1.cc: Adjust.
	* testsuite/20_util/any/assign/emplace.cc: New.
	* testsuite/20_util/any/assign/self.cc: Adjust.
	* testsuite/20_util/any/cons/1.cc: Likewise.
	* testsuite/20_util/any/cons/in_place.cc: New.
	* testsuite/20_util/any/make_any.cc: Likewise.
	* testsuite/20_util/any/misc/any_cast_neg.cc: Adjust.
	* testsuite/20_util/any/misc/swap.cc: Likewise.
	* testsuite/20_util/any/modifiers/1.cc: Likewise.
	* testsuite/20_util/any/requirements.cc: New.
	* testsuite/20_util/in_place/requirements.cc: Likewise.
	* testsuite/20_util/optional/constexpr/in_place.cc: Adjust.
	* testsuite/20_util/optional/in_place.cc: Likewise.
	* testsuite/20_util/optional/make_optional.cc: Add tests for
	the new overloads of make_optional.

From-SVN: r238329
 2016-07-14 12:10:05 +03:00
Ville Voutilainen
86c0ec1de1 Implement P0307R2, Making Optional Greater Equal Again. 
* include/experimental/optional (_Has_addressof): Fix the comment.
	* include/std/optional (_Has_addressof): Likewise.
	(operator=(_Up&&)): Constrain.
	(operator=(const optional<_Up>&)): Likewise.
	(operator=(optional<_Up>&&)): Likewise.
	(__optional_relop_t): New.
	(operator==(const optional<_Tp>&, const optional<_Tp>&)): Constrain.
	(operator!=(const optional<_Tp>&, const optional<_Tp>&)):
	Constrain and make transparent.
	(operator<(const optional<_Tp>&, const optional<_Tp>&)): Constrain.
	(operator>(const optional<_Tp>&, const optional<_Tp>&)):
	Constrain and make transparent.
	(operator<=(const optional<_Tp>&, const optional<_Tp>&)): Likewise.
	(operator>=(const optional<_Tp>&, const optional<_Tp>&)): Likewise.
	(operator==(const optional<_Tp>&, const _Tp&): Constrain.
	(operator==(const _Tp&, const optional<_Tp>&)): Likewise.
	(operator!=(const optional<_Tp>&, _Tp const&)):
	Constrain and make transparent.
	(operator!=(const _Tp&, const optional<_Tp>&)): Likewise.
	(operator<(const optional<_Tp>&, const _Tp&)): Constrain.
	(operator<(const _Tp&, const optional<_Tp>&)): Likewise.
	(operator>(const optional<_Tp>&, const _Tp&)):
	Constrain and make transparent.
	(operator>(const _Tp&, const optional<_Tp>&)): Likewise.
	(operator<=(const optional<_Tp>&, const _Tp&)): Likewise.
	(operator<=(const _Tp&, const optional<_Tp>&)): Likewise.
	(operator>=(const optional<_Tp>&, const _Tp&)): Likewise.
	(operator>=(const _Tp&, const optional<_Tp>&)): Likewise.
	* testsuite/20_util/optional/constexpr/relops/2.cc: Adjust.
	* testsuite/20_util/optional/constexpr/relops/4.cc: Likewise.
	* testsuite/20_util/optional/relops/1.cc: Likewise.
	* testsuite/20_util/optional/relops/2.cc: Likewise.
	* testsuite/20_util/optional/relops/3.cc: Likewise.
	* testsuite/20_util/optional/relops/4.cc: Likewise.
	* testsuite/20_util/optional/requirements.cc: Add tests to verify
	that optional's relops are transparent and don't synthesize
	operators. Also test that assignment sfinaes.

From-SVN: r238292
 2016-07-13 14:25:51 +03:00
Ville Voutilainen
435e56fb52 Implement std::optional. 
* include/Makefile.am: Add optional to exported headers.
	* include/Makefile.in: Likewise.
	* include/std/optional: New.
	* testsuite/20_util/optional/typedefs.cc: Likewise.
	* testsuite/20_util/optional/relops/2.cc: Likewise.
	* testsuite/20_util/optional/relops/3.cc: Likewise.
	* testsuite/20_util/optional/relops/4.cc: Likewise.
	* testsuite/20_util/optional/relops/5.cc: Likewise.
	* testsuite/20_util/optional/relops/1.cc: Likewise.
	* testsuite/20_util/optional/relops/6.cc: Likewise.
	* testsuite/20_util/optional/nullopt.cc: Likewise.
	* testsuite/20_util/optional/in_place.cc: Likewise.
	* testsuite/20_util/optional/make_optional.cc: Likewise.
	* testsuite/20_util/optional/assignment/2.cc: Likewise.
	* testsuite/20_util/optional/assignment/3.cc: Likewise.
	* testsuite/20_util/optional/assignment/4.cc: Likewise.
	* testsuite/20_util/optional/assignment/5.cc: Likewise.
	* testsuite/20_util/optional/assignment/1.cc: Likewise.
	* testsuite/20_util/optional/assignment/6.cc: Likewise.
	* testsuite/20_util/optional/cons/value_neg.cc: Likewise.
	* testsuite/20_util/optional/cons/default.cc: Likewise.
	* testsuite/20_util/optional/cons/move.cc: Likewise.
	* testsuite/20_util/optional/cons/value.cc: Likewise.
	* testsuite/20_util/optional/cons/copy.cc: Likewise.
	* testsuite/20_util/optional/requirements.cc: Likewise.
	* testsuite/20_util/optional/observers/2.cc: Likewise.
	* testsuite/20_util/optional/observers/3.cc: Likewise.
	* testsuite/20_util/optional/observers/4.cc: Likewise.
	* testsuite/20_util/optional/observers/5.cc: Likewise.
	* testsuite/20_util/optional/observers/1.cc: Likewise.
	* testsuite/20_util/optional/constexpr/relops/2.cc: Likewise.
	* testsuite/20_util/optional/constexpr/relops/3.cc: Likewise.
	* testsuite/20_util/optional/constexpr/relops/4.cc: Likewise.
	* testsuite/20_util/optional/constexpr/relops/5.cc: Likewise.
	* testsuite/20_util/optional/constexpr/relops/1.cc: Likewise.
	* testsuite/20_util/optional/constexpr/relops/6.cc: Likewise.
	* testsuite/20_util/optional/constexpr/nullopt.cc: Likewise.
	* testsuite/20_util/optional/constexpr/in_place.cc: Likewise.
	* testsuite/20_util/optional/constexpr/make_optional.cc: Likewise.
	* testsuite/20_util/optional/constexpr/cons/default.cc: Likewise.
	* testsuite/20_util/optional/constexpr/cons/value.cc: Likewise.
	* testsuite/20_util/optional/constexpr/observers/2.cc: Likewise.
	* testsuite/20_util/optional/constexpr/observers/3.cc: Likewise.
	* testsuite/20_util/optional/constexpr/observers/4.cc: Likewise.
	* testsuite/20_util/optional/constexpr/observers/5.cc: Likewise.
	* testsuite/20_util/optional/constexpr/observers/1.cc: Likewise.
	* testsuite/20_util/optional/swap/1.cc: Likewise.

From-SVN: r238197
 2016-07-10 20:44:21 +03:00
Ville Voutilainen
52e8622199 Implement std::any. 
* include/Makefile.am: Add any and c++17_warning.h to exported headers.
	* include/Makefile.in: Likewise.
	* include/std/any: New.
	* testsuite/20_util/any/assign/1.cc: Likewise.
	* testsuite/20_util/any/assign/2.cc: Likewise.
	* testsuite/20_util/any/assign/self.cc: Likewise.
	* testsuite/20_util/any/cons/1.cc: Likewise.
	* testsuite/20_util/any/cons/2.cc: Likewise.
	* testsuite/20_util/any/cons/aligned.cc: Likewise.
	* testsuite/20_util/any/cons/nontrivial.cc: Likewise.
	* testsuite/20_util/any/misc/any_cast.cc: Likewise.
	* testsuite/20_util/any/misc/any_cast_neg.cc: Likewise.
	* testsuite/20_util/any/misc/any_cast_no_rtti.cc: Likewise.
	* testsuite/20_util/any/misc/swap.cc: Likewise.
	* testsuite/20_util/any/modifiers/1.cc: Likewise.
	* testsuite/20_util/any/observers/type.cc: Likewise.
	* testsuite/20_util/any/typedefs.cc: Likewise.

From-SVN: r238061
 2016-07-07 01:33:20 +03:00
Daniel Kruegler
6b9539e2aa Provide swappable traits (p0185r1) 
2016-06-16  Daniel Kruegler  <daniel.kruegler@gmail.com>

	Provide swappable traits (p0185r1)
	* include/std/type_traits (is_swappable, is_nothrow_swappable,
	is_swappable_with, is_nothrow_swappable_with, is_swappable_v,
	is_nothrow_swappable_v, is_swappable_with_v,
	is_nothrow_swappable_with_v): New.
	* include/bits/stl_pair.h: Use it as per p0185r1.
	* include/bits/stl_queue.h: Likewise.
	* include/bits/stl_stack.h: Likewise.
	* include/bits/unique_ptr.h: Likewise.
	* include/std/tuple: Likewise.
	* include/std/array: Likewise. Fix zero-size member swap.
	* include/bits/hashtable.h: Use __and_.
	* testsuite/20_util/is_nothrow_swappable/requirements/
	explicit_instantiation.cc: Change test options to std=gnu++17.
	* testsuite/20_util/is_nothrow_swappable/requirements/typedefs.cc:
	Likewise.
	* testsuite/20_util/is_nothrow_swappable/value.cc: Likewise.
	* testsuite/20_util/is_swappable/requirements/
	explicit_instantiation.cc: Likewise.
	* testsuite/20_util/is_swappable/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/is_swappable/value.cc: Likewise.
	* testsuite/20_util/is_nothrow_swappable/requirements/
	explicit_instantiation_ext.cc: New.
	* testsuite/20_util/is_nothrow_swappable/requirements/typedefs_ext.cc:
	New.
	* testsuite/20_util/is_nothrow_swappable/value.h: New.
	* testsuite/20_util/is_nothrow_swappable/value_ext.cc: New.
	* testsuite/20_util/is_nothrow_swappable_with/requirements/
	explicit_instantiation.cc: New.
	* testsuite/20_util/is_nothrow_swappable_with/requirements/typedefs.cc:
	New.
	* testsuite/20_util/is_nothrow_swappable_with/value.cc: New.
	* testsuite/20_util/is_swappable/requirements/
	explicit_instantiation_ext.cc: New.
	* testsuite/20_util/is_swappable/requirements/typedefs_ext.cc: New.
	* testsuite/20_util/is_swappable/value.h: New.
	* testsuite/20_util/is_swappable/value_ext.cc: New.
	* testsuite/20_util/is_swappable_with/requirements/
	explicit_instantiation.cc: New.
	* testsuite/20_util/is_swappable_with/requirements/typedefs.cc: New.
	* testsuite/20_util/is_swappable_with/value.cc: New.
	* testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust
	dg-error line numbers.
	* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
	Likewise.

From-SVN: r237531
 2016-06-16 16:07:19 +01:00
Jonathan Wakely
33ac58d529 Remove trailing whitespace from libstdc++ headers 
* include/std/array: Remove trailing whitespace.
	* include/std/atomic: Likewise.
	* include/std/bitset: Likewise.
	* include/std/chrono: Likewise.
	* include/std/complex: Likewise.
	* include/std/condition_variable: Likewise.
	* include/std/fstream: Likewise.
	* include/std/functional: Likewise.
	* include/std/future: Likewise.
	* include/std/iomanip: Likewise.
	* include/std/iosfwd: Likewise.
	* include/std/istream: Likewise.
	* include/std/limits: Likewise.
	* include/std/ratio: Likewise.
	* include/std/scoped_allocator: Likewise.
	* include/std/sstream: Likewise.
	* include/std/stdexcept: Likewise.
	* include/std/string: Likewise.
	* include/std/system_error: Likewise.
	* include/std/thread: Likewise.
	* include/std/tuple: Likewise.
	* include/std/type_traits: Likewise.
	* include/std/utility: Likewise.
	* include/std/valarray: Likewise.
	* include/std/vector: Likewise.

From-SVN: r237528
 2016-06-16 14:47:35 +01:00
François Dumont
373c00952c tuple (_Head_base<>): Default specialization condition at type declaration. 
2016-06-07  François Dumont  <fdumont@gcc.gnu.org>

	* include/std/tuple (_Head_base<>): Default specialization condition at
	type declaration.

From-SVN: r237184
 2016-06-07 20:19:19 +00:00
Ville Voutilainen
dbc6221fe5 Support allocators in tuples of zero size. 
* include/std/tuple (tuple<>::tuple(),
	tuple<>::tuple(allocator_arg_t, const _Alloc&),
	tuple<>::tuple(allocator_arg_t, const _Alloc&, const tuple&)): New.
	* testsuite/20_util/tuple/cons/allocators.cc: Adjust.

From-SVN: r237143
 2016-06-06 19:28:59 +03:00
Ville Voutilainen
7a66745357 Protect allocator-overloads of tuple-from-tuple constructors from cases that would create dangling references. 
Protect allocator-overloads of tuple-from-tuple constructors
	from cases that would create dangling references.
	* include/std/tuple (tuple(allocator_arg_t, const _Alloc&,
 	const tuple<_UElements...>&), tuple(allocator_arg_t, const _Alloc&,
 	tuple<_UElements...>&&)): Add a check for _NonNestedTuple.
	* testsuite/20_util/tuple/cons/nested_tuple_construct.cc: Adjust.

From-SVN: r237106
 2016-06-05 20:39:10 +03:00
Ville Voutilainen
48035dfbea Fix build. 
From-SVN: r236823
 2016-05-27 17:34:08 +03:00
Ville Voutilainen
b702100693 re PR libstdc++/66338 (std::forward_as_tuple() issue with single argument) 
2016-05-24  Ville Voutilainen  <ville.voutilainen@gmail.com>

	PR libstdc++/66338
	* include/std/tuple (_TMC): Add a check for _NotSameTuple.
	* include/std/tuple (tuple(_UElements&&...)): Remove the separate
	check for _NotSameTuple.
	* include/std/tuple (_TMCT): New.
	* include/std/tuple (tuple(const tuple<_UElements...>&)): Use it.
	* include/std/tuple (tuple(tuple<_UElements...>&&)): Likewise.
	* include/std/tuple (tuple(allocator_arg_t, const _Alloc&,
	      const tuple<_UElements...>&)): Likewise.
	* include/std/tuple (tuple(allocator_arg_t, const _Alloc&,
	      tuple<_UElements...>&&)): Likewise.
	* testsuite/20_util/tuple/cons/66338.cc: New.

From-SVN: r236822
 2016-05-27 17:08:37 +03:00
Ville Voutilainen
fb334765e2 Avoid endless run-time recursion for copying single-element tuples where the... 
Avoid endless run-time recursion for copying single-element
	tuples where the element type is by-value constructible
	from any type.
 	* include/std/tuple (_NotSameTuple): New.
 	* include/std/tuple (tuple(_UElements&&...): Use it.
	* testsuite/20_util/tuple/cons/element_accepts_anything_byval.cc: New.

From-SVN: r236025
 2016-05-09 14:03:36 +03:00
Jonathan Wakely
9f9eb84eac libstdc++/70766 use std::addressof instead of operator& 
PR libstdc++/70766
	* include/bits/basic_ios.tcc (basic_ios::_M_cache_locale): Use
	__addressof.
	* include/bits/stream_iterator.h (istream_iterator, ostream_iterator):
	Likewise.
	* include/std/atomic (atomic<_Tp>): Likewise.
	* include/std/shared_mutex (shared_lock): Likewise.
	* testsuite/24_iterators/istream_iterator/70766.cc: New test.
	* testsuite/24_iterators/ostream_iterator/70766.cc : New test.
	* testsuite/29_atomics/atomic/60695.cc: Adjust dg-error line number.
	* testsuite/29_atomics/atomic/70766.cc: New test.
	* testsuite/30_threads/shared_lock/70766.cc: New test.

From-SVN: r235565
 2016-04-28 13:33:07 +01:00
Jonathan Wakely
45e206963a libstdc++/70767 Define std::numeric_limits<cv T> in C++98 mode 
PR libstdc++/70767
	* include/std/limits: Update comments about DRs.
	(numeric_limits<const _Tp>, numeric_limits<volatile _Tp>,
	numeric_limits<const volatile _Tp>): Define unconditionally.

From-SVN: r235486
 2016-04-27 12:57:58 +01:00
Jonathan Wakely
90751aa731 Remove unused typedefs in std::bind types 
* include/std/function (_Bind, _Bind_result): Remove unused typedefs.

From-SVN: r235157
 2016-04-18 17:37:56 +01:00
Jonathan Wakely
b05cf382e0 Define std:🧵:id comparison operators at namespace-scope 
From-SVN: r235155
 2016-04-18 17:16:14 +01:00
Jonathan Wakely
9c5ad80efd Fix construction of std::function from null pointer-to-member 
PR libstdc++/69293
	* include/std/functional (_Function_base::_M_not_empty_function):
	Change overloads for pointers to take arguments by value.
	* testsuite/20_util/function/cons/57465.cc: Add tests for
	pointer-to-member cases.

From-SVN: r232504
 2016-01-18 11:43:37 +00:00
Torvald Riegel
a04d5fc95d libstdc++: Make certain exceptions transaction_safe. 
From-SVN: r232454
 2016-01-15 22:42:41 +00:00
Daniel Kruegler
26b5ace7ea libstdc++/68877 Reimplement std::__is_swappable 
2016-01-12  Daniel Kruegler  <daniel.kruegler@gmail.com>

	PR libstdc++/68877
	* include/std/type_traits: Following N4511, reimplement __is_swappable
	and __is_nothrow_swappable. Move __is_swappable to namespace std,
	adjust callers. Use __is_nothrow_swappable in swap.
	* include/bits/move.h: Use __is_nothrow_swappable in swap.
	* testsuite/20_util/is_nothrow_swappable/value.cc: Extend; remove
	__is_swappable related tests.
	* testsuite/20_util/is_swappable/value.cc: New.
	* testsuite/20_util/is_swappable/requirements/
	explicit_instantiation.cc: New.
	* testsuite/20_util/is_swappable/requirements/typedefs.cc: New.
	* testsuite/25_algorithms/swap/68877.cc: New.

From-SVN: r232296
 2016-01-12 21:19:58 +00:00
Jonathan Wakely
1c3c7c4145 Prevent recursive instantiation in std::function 
PR libstdc++/69005
	PR libstdc++/69222
	* include/std/functional (function::_Invoke): Remove, use result_of.
	(function::_Callable): Replace alias template with class template
	and use partial specialization instead of _NotSelf alias template.
	(function(_Functor)): Add "not self" constraint so that _Callable is
	not used while type is incomplete.
	* testsuite/20_util/function/69222.cc: New.

From-SVN: r232273
 2016-01-12 14:54:33 +00:00
Jonathan Wakely
f885fa898f Use std::addressof in insert iterators, allocators and promises 
PR libstdc++/69105
	PR libstdc++/69106
	PR libstdc++/69114
	* include/bits/stl_iterator.h (back_insert_iterator,
	front_insert_iterator, insert_iterator): Use __addressof (LWG 2324).
	* include/bits/uses_allocator.h (__use_alloc): Use __addressof.
	* include/std/future (__future::base::_State_baseV2::__setter):
	Likewise.
	* include/std/scoped_allocator (__outermost): Likewise.
	* testsuite/20_util/scoped_allocator/69114.cc: New.
	* testsuite/20_util/uses_allocator/69114.cc: New.
	* testsuite/30_threads/promise/69106.cc: New.

From-SVN: r232129
 2016-01-07 15:01:33 +00:00
Jonathan Wakely
0c3e5dd1e6 Rename bits/mutex.h to avoid clashing with glibc 
* include/Makefile.am: Adjust.
	* include/Makefile.in: Regenerate.
	* include/bits/mutex.h: Rename to bits/std_mutex.h.
	* include/std/condition_variable: Adjust include.
	* include/std/mutex: Likewise.

From-SVN: r232101
 2016-01-06 13:00:33 +00:00
Jakub Jelinek
818ab71a41 Update copyright years. 
From-SVN: r232055
 2016-01-04 15:30:50 +01:00
Jonathan Wakely
9643ce888b Add inline to std::__invfwd 
PR libstdc++/59768
	* include/std/functional (__invfwd): Add inline specifier.

From-SVN: r231900
 2015-12-22 11:37:07 +00:00
Jonathan Wakely
a716d11ad4 libstdc++/68995 qualify calls to __callable_functor 
PR libstdc++/68995
	* include/std/functional (_function_handler, function): Qualify
	__callable_functor.
	* testsuite/20_util/function/68995.cc: New.

From-SVN: r231880
 2015-12-21 13:02:18 +00:00
Jonathan Wakely
e9e6a99538 libstdc++/68276 consistently qualify std::forward 
PR libstdc++/68276
	* include/std/functional (__invoke_impl, _Mem_fn::operator()): Qualify
	std::forward.
	testsuite/20_util/function_objects/mem_fn/68276.cc: New.

From-SVN: r231879
 2015-12-21 13:02:12 +00:00
Ville Voutilainen
de0830e12b re PR libstdc++/66693 ([C++17] std::tuple_size fails with const std::array) 
PR libstdc++/66693.

	* include/std/tuple (tuple_element, tuple_size, tuple_element_t,
	__tuple_element_t): Move to...
	* include/std/utility: ...here.
	* testsuite/20_util/pair/astuple/astuple.cc: Adjust.
	* testsuite/20_util/pair/astuple/astuple_cpp14.cc: New.
	* testsuite/20_util/tuple/tuple_element.cc: Adjust.
	* testsuite/20_util/tuple/tuple_element_t.cc: Likewise.
	* testsuite/20_util/tuple/tuple_size.cc: Likewise.
	* testsuite/23_containers/array/tuple_interface/tuple_element.cc:
	Likewise.
	* testsuite/23_containers/array/tuple_interface/tuple_element_cpp14.cc:
	New.
	* testsuite/23_containers/array/tuple_interface/tuple_size.cc: Adjust.

From-SVN: r231875
 2015-12-21 13:22:16 +02:00
Jonathan Wakely
b110e777bd Restore accidentally-removed volatile qualifier 
* include/std/functional (_Mu<_Arg, false, false>::operator()): Restore
	accidentally-removed volatile qualifier.

From-SVN: r231660
 2015-12-15 17:06:25 +00:00
Jonathan Wakely
72030b28a1 Remove vestigial traces of std::tr1::bind 
* include/std/functional (is_placeholder, is_bind_expression): Update
	comments.
	(_Safe_tuple_element): Replace with _Safe_tuple_element_t alias
	template.
	(_Mu): Remove vestigial TR1 return types and update coments.

From-SVN: r231653
 2015-12-15 14:17:27 +00:00
Jonathan Wakely
6666731254 Fix cv-qualifiers in std::bind invocation 
PR libstdc++/68912
	* include/std/functional (_Bind::operator()): Use lvalue functor to
	deduce return type.
	* testsuite/20_util/bind/68912.cc: New.

From-SVN: r231652
 2015-12-15 14:17:17 +00:00
Jonathan Wakely
f3d7dd52a6 Fix std::invoke support for reference_wrappers 
PR libstdc++/59768
	* include/std/functional (_Unwrap, __invfwd): Define.
	(__invoke_impl): Remove reference_wrapper overloads and use __invfwd.
	* include/std/type_traits (__result_of_memobj, __result_of_memfun):
	Add partial specializations for const reference_wrappers and simplify.
	* testsuite/20_util/bind/ref_neg.cc: Use dg-excess-errors.
	* testsuite/20_util/function_objects/invoke/59768.cc: New.

From-SVN: r231574
 2015-12-11 21:45:51 +00:00
Jonathan Wakely
6b4f890601 Improve generated libstdc++ API docs 
* doc/doxygen/user.cfg.in: Use EXTENSION_MAPPING tag. Add new headers
	to INPUT. Remove obsolete XML_SCHEMA and XML_DTD tags. Update
	PREDEFINED macros. Set BRIEF_MEMBER_DESC for man-pages.
	* include/backward/strstream: Correct @file comment.
	* include/bits/forward_list.h: Improve Doxygen comments.
	* include/bits/locale_facets_nonio.h: Likewise.
	* include/bits/mutex.h: Likewise.
	* include/bits/shared_ptr.h: Likewise.
	* include/bits/stl_deque.h: Likewise.
	* include/debug/vector (_Safe_vector): Add @brief section to comment.
	* include/experimental/bits/fs_dir.h: Correct @file comment.
	* include/experimental/bits/fs_fwd.h: Likewise.
	* include/experimental/bits/fs_ops.h: Likewise.
	* include/experimental/bits/fs_path.h: Likewise.
	* include/experimental/bits/string_view.tcc: Likewise.
	* include/experimental/optional: Document experimental status.
	* include/experimental/string_view: Correct @file comment.
	* include/ext/pb_ds/detail/bin_search_tree_/traits.hpp: Reduce
	whitespace to avoid Doxygen bug.
	* include/std/bitset: Remove redundant @class Doxygen command. Add
	parentheses to avoid Doxygen bug.
	* include/std/mutex: Improve Doxygen comments.
	* include/tr2/dynamic_bitset: Add missing @param documentation.
	* scripts/run_doxygen: Rename man pages for std::experimental types.

From-SVN: r231512
 2015-12-10 14:02:52 +00:00
Jonathan Wakely
755be51d02 PR libstdc++/57060 cope with invalid thread IDs 
PR libstdc++/57060
	* include/std/thread (operator==(thread::id, thread::id)): Do not use
	__gthread_equal.
	(operator<(thread::id, thread::id)): Add comment.
	(this_thread::get_id()): Do not use __gthread_self for single-threaded
	programs using glibc.
	* testsuite/30_threads/this_thread/57060.cc: New.

From-SVN: r231289
 2015-12-04 17:32:40 +00:00
Jonathan Wakely
5f0b7c9548 PR libstdc++/66059 optimise _Build_index_tuple 
PR libstdc++/66059
	* include/std/utility (_Build_index_tuple): Optimise.

From-SVN: r230496
 2015-11-17 19:54:33 +00:00
Jennifer Yao
23c64853c8 More fine-grained autoconf checks for C99 library 
2015-11-13  Jennifer Yao  <jenny.hyphen.fa@gmail.com>
	    Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/58393
	PR libstdc++/61580
	* acinclude.m4 (GLIBCXX_ENABLE_C99): Perform tests twice, with
	-std=c++11 as well as -std=c++98, and define separate macros for each.
	Cache the results of checking for complex math and wide character
	functions. Reformat for readability.
	* config.h.in: Regenerate.
	* include/bits/c++config: Define _GLIBCXX_USE_C99_XXX macros to
	either _GLIBCXX98_USE_C99_XXX or _GLIBCXX11_USE_C99_XXX according to
	language standard in use.
	* config/locale/dragonfly/c_locale.h (std::__convert_from_v): Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO.
	* config/locale/generic/c_locale.h (std::__convert_from_v): Likewise.
	* config/locale/gnu/c_locale.h (std::__convert_from_v): Likewise.
	* config/os/bsd/dragonfly/os_defines.h: Define _GLIBCXX_USE_C99_STDIO,
	_GLIBCXX_USE_C99_STDLIB, and _GLIBCXX_USE_C99_WCHAR.
	* configure: Regenerate.
	* include/bits/basic_string.h: Make numeric conversion functions
	depend on _GLIBCXX_USE_C99_STDIO, _GLIBCXX_USE_C99_STDLIB, or
	_GLIBCXX_USE_C99_WCHAR, instead of _GLIBCXX_USE_C99.
	* include/ext/vstring.h: Likewise.
	* include/bits/locale_facets.tcc (std::num_put::_M_insert_float):
	Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO.
	* include/bits/locale_facets_nonio.tcc (std::money_put::do_put):
	Likewise.
	* include/c_compatibility/math.h: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_MATH.
	* include/c_compatibility/wchar.h: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_WCHAR.
	* include/c_global/cstdio: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDIO.
	* include/c_global/cstdlib: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDLIB.
	* include/c_global/cwchar: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_WCHAR.
	* include/c_std/cstdio: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDIO.
	* include/c_std/cstdlib: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDLIB.
	* include/c_std/cwchar: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_WCHAR.
	* include/tr1/cstdio: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDIO.
	* include/tr1/cstdlib: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDLIB.
	* include/tr1/cwchar: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_WCHAR.
	* include/tr1/stdlib.h: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDLIB.
	* src/c++98/locale_facets.cc (std::__num_base::_S_format_float):
	Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO.
	* testsuite/18_support/exception_ptr/60612-terminate.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB.
	* testsuite/18_support/exception_ptr/60612-unexpected.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stod.cc
	(test01): Replace _GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_WCHAR.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stof.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stoi.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stol.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stold.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stoll.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stoul.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stoull.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	to_wstring.cc: Likewise.
	* testsuite/26_numerics/headers/cstdlib/13943.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB.
	* testsuite/26_numerics/headers/cstdlib/types_std_c++0x.cc: Likewise.
	* testsuite/lib/libstdc++.exp (check_v3_target_string_conversions):
	Change preprocessor #if conditional so that it uses
	_GLIBCXX_USE_C99_STDIO, _GLIBCXX_USE_C99_STDLIB, and
	_GLIBCXX_USE_C99_WCHAR, instead of _GLIBCXX_USE_C99.
	* testsuite/tr1/8_c_compatibility/cmath/templates.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_MATH.
	* testsuite/tr1/8_c_compatibility/cstdio/functions.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDIO.
	* testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_STDLIB.
	* testsuite/tr1/8_c_compatibility/cstdlib/types_std_tr1.cc: Likewise.
	* testsuite/tr1/8_c_compatibility/cwchar/functions.cc: Replace
	_GLIBCXX_USE_C99 with _GLIBCXX_USE_C99_WCHAR.
	* testsuite/util/testsuite_fs.h: Replace _GLIBCXX_USE_C99 with
	_GLIBCXX_USE_C99_STDIO.

Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r230324
 2015-11-13 14:51:25 +00:00
Jonathan Wakely
f022ab0310 * include/std/thread: Include <cerrno> for EINTR. 
From-SVN: r230266
 2015-11-12 16:13:06 +00:00
Ville Voutilainen
c3a6648b1c Implement D0013R2, logical type traits. 
2015-11-12  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Implement D0013R2, logical type traits.

	/libstdc++-v3
	* include/experimental/type_traits (conjunction_v, disjunction_v,
	negation_v): New.
	* include/std/type_traits (conjunction, disjunction, negation):
	Likewise.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Likewise.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/experimental/type_traits/value.cc: Likewise.
	* testsuite/20_util/logical_traits/requirements/explicit_instantiation.cc: New.
	* testsuite/20_util/logical_traits/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/logical_traits/value.cc: Likewise.

	/testsuite
	* g++.dg/cpp0x/Wattributes1.C: Adjust.

From-SVN: r230258
 2015-11-12 15:56:31 +02:00
Jonathan Wakely
f55e699d3d Loop in std::this_thread sleep functions 
PR libstdc++/60421
	* include/std/thread (this_thread::sleep_for): Retry on EINTR.
	(this_thread::sleep_until): Retry if time not reached.
	* src/c++11/thread.cc (__sleep_for): Retry on EINTR.
	* testsuite/30_threads/this_thread/60421.cc: Test interruption and
	non-steady clocks.

From-SVN: r230183
 2015-11-11 17:08:51 +00:00
Ville Voutilainen
f763219373 Make the default constructors of tuple and pair conditionally explicit. 
2015-11-03  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Make the default constructors of tuple and pair conditionally explicit.
	* include/std/type_traits (is_unsigned, __is_array_unknown_bounds,
	__is_default_constructible_atom, __is_default_constructible_safe,
	__is_direct_constructible_new_safe, __is_direct_constructible_ref_cast,
	__is_nt_default_constructible_impl, is_nothrow_default_constructible,
	is_nothrow_constructible, is_nothrow_assignable,
	is_trivially_constructible, is_trivially_copy_constructible,
	is_trivially_move_constructible, is_trivially_assignable,
	is_trivially_copy_assignable, is_trivially_move_assignable,
	is_trivially_destructible): Simplify.
	* include/std/type_traits (
	__do_is_implicitly_default_constructible_impl,
	__is_implicitly_default_constructible_impl,
	__is_implicitly_default_constructible_safe,
	__is_implicitly_default_constructible): New.
	* include/bits/stl_pair.h (pair::pair()): Use it.
	* include/std/tuple (tuple<_T1, _T2>::tuple): Use it.
	* include/std/tuple (_ImplicitlyDefaultConstructibleTuple): New.
	* include/std/tuple (tuple<_Types...>::tuple()): Use it.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
	* testsuite/20_util/is_implicitly_default_constructible/requirements/explicit_instantiation.cc: New.
	* testsuite/20_util/is_implicitly_default_constructible/requirements/typedefs.cc: Likewise.
	* testsuite/20_util/is_implicitly_default_constructible/value.cc: Likewise.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Likewise.
	* testsuite/20_util/pair/cons/explicit_construct.cc: Likewise.
	* testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.

From-SVN: r229699
 2015-11-03 10:41:40 +02:00
Jonathan Wakely
93e954005f Implement C++17 std::invoke and LWG DR 2219 
* include/std/functional (__invoke_impl): New overloads.
	(__invoke): Replace with a single function calling __invoke_impl.
	(invoke): Add C++17 std::invoke.
	(reference_wrapper::operator()): Qualify call to __invoke.
	(_Mem_fn_traits_base, _Mem_fn_traits): Remove unused typedefs.
	(_Mem_fn_base): Remove unused typedefs and implement call operator in
	terms of __invoke.
	* include/std/future (__future_base::_Async_state_commonV2): Do not
	pass reference_wrapper as object argument to call_once.
	* include/std/type_traits (result_of): Define nested __invoke_type.
	Handle reference_wrapper as per LWG 2219.
	* testsuite/20_util/bind/ref_neg.cc: Adjust dg-error directives.
	* testsuite/20_util/function_objects/mem_fn/55463.cc: Remove tests
	using member functions of reference_wrapper.

From-SVN: r229290
 2015-10-25 01:00:54 +01:00
Jonathan Wakely
6fbd598400 Return deferred future if thread cannot be run 
* include/std/future (async): Use deferred function on exception.
	* testsuite/30_threads/async/except.cc: New.

From-SVN: r229289
 2015-10-24 22:36:50 +01:00
Jonathan Wakely
f9badf7134 * include/std/type_traits (__cpp_lib_bool_constant): Define. 
From-SVN: r229152
 2015-10-21 22:20:25 +01:00
Ville Voutilainen
057ce49719 re PR c++/67844 (Cannot make tuple of class with template constructor) 
2015-10-05  Ville Voutilainen  <ville.voutilainen@gmail.com>

	PR 67844.
	* include/std/tuple (_TC::_NonNestedTuple): Eagerly reject
	conversions from tuple types same as the target tuple.
	* testsuite/20_util/tuple/67844.cc: New.
	* testsuite/20_util/tuple/cons/nested_tuple_construct.cc: Add
	a missing copyright header.

From-SVN: r228468
 2015-10-05 12:57:20 +03:00
Jonathan Wakely
ce535a9685 Reduce space and time overhead of std::thread 
PR libstdc++/65393
	* config/abi/pre/gnu.ver: Export new symbols.
	* include/std/thread (thread::_State, thread::_State_impl): New types.
	(thread::_M_start_thread): Add overload taking unique_ptr<_State>.
	(thread::_M_make_routine): Remove.
	(thread::_S_make_state): Add.
	(thread::_Impl_base, thread::_Impl, thread::_M_start_thread)
	[_GLIBCXX_THREAD_ABI_COMPAT] Only declare conditionally.
	* src/c++11/thread.cc (execute_native_thread_routine): Rename to
	execute_native_thread_routine_compat and re-define to use _State.
	(thread::_State::~_State()): Define.
	(thread::_M_make_thread): Define new overload.
	(thread::_M_make_thread) [_GLIBCXX_THREAD_ABI_COMPAT]: Only define old
	overloads conditionally.

From-SVN: r228242
 2015-09-29 13:54:05 +01:00
Jonathan Wakely
80400b0477 LWG 2135: terminate() in condition_variable::wait() 
* include/std/condition_variable (condition_variable::wait): Add
	noexcept.
	* src/c++11/condition_variable.cc (condition_variable::wait): Call
	std::terminate on error (DR 2135).

From-SVN: r228217
 2015-09-28 19:44:40 +01:00
Ville Voutilainen
5e2f2cd584 Avoid creating dangling references in case of nested tuples 
for tuple constructors that construct from other tuples.

2015-09-25  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Avoid creating dangling references in case of nested tuples
	for tuple constructors that construct from other tuples.
	* include/std/tuple (_TC::_NonNestedTuple): New.
	* include/std/tuple (tuple::_TNTC): New.
	* include/std/tuple (tuple(const tuple<_UElements...>&),
	tuple(tuple<_UElements...>&&): Use _TNTC.
	* testsuite/20_util/tuple/cons/nested_tuple_construct.cc: New.

From-SVN: r228134
 2015-09-25 19:41:45 +03:00
Jonathan Wakely
310055e7b4 Handle alignment in __atomic_is_lock_free 
gcc:

2015-09-17  Richard Henderson  <rth@redhat.com>

	PR libstdc++/65913
	* builtins.c (fold_builtin_atomic_always_lock_free): Handle fake
	pointers that encode the alignment of the object.

libstdc++-v3:

2015-09-17  Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/65913
	* include/bits/atomic_base.h (__atomic_base<_TTp>::is_lock_free(),
	__atomic_base<_PTp*>::is_lock_free()): Call the built-in with the
	immediate pointer value, not a variable.
	* include/std/atomic (atomic<T>::is_lock_free()): Likewise.
	* testsuite/29_atomics/atomic/65913.cc: New.

From-SVN: r227878
 2015-09-17 16:46:04 +01:00
Jonathan Wakely
2eb57e545b Remove redundant conditional expressions in <system_error> 
* include/std/system_error (error_code::operator bool(),
	error_condition::operator bool()): Remove redundant conditional
	expression.

From-SVN: r227871
 2015-09-17 15:56:50 +01:00
Jonathan Wakely
2f1e8e7c47 Enable lightweight checks with _GLIBCXX_ASSERTIONS. 
* doc/xml/manual/using.xml (_GLIBCXX_ASSERTIONS): Document.
	* doc/html/manual/using_macros.html: Regenerate.
	* include/bits/c++config: Define _GLIBCXX_ASSERTIONS when
	_GLIBCXX_DEBUG is defined. Disable std::string extern templates when
	(_GLIBCXX_EXTERN_TEMPLATE, __glibcxx_assert): Depend on
	_GLIBCXX_ASSERTIONS instead of _GLIBCXX_DEBUG.
	* include/debug/debug.h [!_GLIBCXX_DEBUG]: Define
	__glibcxx_requires_non_empty_range and __glibcxx_requires_nonempty.
	* include/backward/auto_ptr.h (auto_ptr::operator*,
	auto_ptr::operator->): Replace _GLIBCXX_DEBUG_ASSERT with
	__glibcxx_assert.
	* include/bits/basic_string.h (basic_string::operator[],
	basic_string::front, basic_string::back, basic_string::pop_back):
	Likewise.
	* include/bits/random.h
	(uniform_int_distribution::param_type::param_type,
	uniform_real_distribution::param_type::param_type,
	normal_distribution::param_type::param_type,
	gamma_distribution::param_type::param_type,
	bernoulli_distribution::param_type::param_type,
	binomial_distribution::param_type::param_type,
	geometric_distribution::param_type::param_type,
	negative_binomial_distribution::param_type::param_type,
	poisson_distribution::param_type::param_type,
	exponential_distribution::param_type::param_type): Likewise.
	* include/bits/regex.h (match_results::operator[],
	match_results::prefix, match_results::suffix): Likewise.
	* include/bits/regex.tcc (format, regex_iterator::operator++):
	Likewise.
	* include/bits/regex_automaton.tcc (_StateSeq::_M_clone): Likewise.
	* include/bits/regex_compiler.tcc (_Compiler::_Compiler,
	_Compiler::_M_insert_character_class_matcher): Likewise.
	* include/bits/regex_executor.tcc (_Executor::_M_dfs): Likewise.
	* include/bits/regex_scanner.tcc (_Scanner::_M_advance,
	_Scanner::_M_scan_normal): Likewise.
	* include/bits/shared_ptr_base.h (__shared_ptr::_M_reset,
	__shared_ptr::operator*): Likewise.
	* include/bits/stl_iterator_base_funcs.h (__advance): Likewise.
	* include/bits/unique_ptr.h (unique_ptr::operator*,
	unique_ptr::operator[]): Likewise.
	* include/experimental/fs_path.h (path::path(string_type, _Type),
	path::iterator::operator++, path::iterator::operator--,
	path::iterator::operator*): Likewise.
	* include/experimental/string_view (basic_string_view::operator[],
	basic_string_view::front, basic_string_view::back,
	basic_string_view::remove_prefix): Likewise.
	* include/ext/random (beta_distribution::param_type::param_type,
	normal_mv_distribution::param_type::param_type,
	rice_distribution::param_type::param_type,
	pareto_distribution::param_type::param_type,
	k_distribution::param_type::param_type,
	arcsine_distribution::param_type::param_type,
	hoyt_distribution::param_type::param_type,
	triangular_distribution::param_type::param_type,
	von_mises_distribution::param_type::param_type,
	hypergeometric_distribution::param_type::param_type,
	logistic_distribution::param_type::param_type): Likewise.
	* include/ext/vstring.h (__versa_string::operator[]): Likewise.
	* include/std/complex (polar): Likewise.
	* include/std/mutex [!_GTHREAD_USE_MUTEX_TIMEDLOCK]
	(timed_mutex::~timed_mutex, timed_mutex::unlock,
	(recursive_timed_mutex::~timed_mutex, recursive_timed_mutex::unlock):
	Likewise.
	* include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
	(__shared_mutex_pthread::__shared_mutex_pthread,
	__shared_mutex_pthread::~__shared_mutex_pthread): Likewise.
	(__shared_mutex_pthread::lock, __shared_mutex_pthread::try_lock,
	__shared_mutex_pthread::unlock, __shared_mutex_pthread::lock_shared,
	__shared_mutex_pthread::try_lock_shared): Likewise.
	(__shared_mutex_cv::~__shared_mutex_cv, __shared_mutex_cv::unlock,
	__shared_mutex_cv::unlock_shared): Likewise.
	(shared_timed_mutex::try_lock_until,
	shared_timed_mutex::try_lock_shared_until): Likewise.
	* include/std/valarray (valarray::valarray(const _Tp*, size_t),
	valarray::operator=, valarray::sum, valarray::min, valarray::max,
	_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT, _DEFINE_BINARY_OPERATOR):
	Likewise.

From-SVN: r227595
 2015-09-09 18:12:47 +01:00
Jonathan Wakely
c79c59f024 fix darwin bootstrap errors due to <mutex>. 
PR libstdc++/65704
	* include/std/mutex (recursive_timed_mutex): Fix uses of _Can_lock.

From-SVN: r227495
 2015-09-04 17:09:05 +01:00
Jonathan Wakely
f16081c2c6 Add portable timed_mutex and recursive_timed_mutex. 
PR libstdc++/65704
	* include/Makefile.am: Add <bits/mutex.h>.
	* include/Makefile.in: Regenerate.
	* include/bits/mutex.h (__mutex_base, mutex, lock_guard, unique_lock):
	New file containing types moved from <mutex>.
	* include/std/condition_variable: Include <bits/mutex.h> instead of
	<mutex>.
	* include/std/mutex (__mutex_base, mutex, lock_guard, unique_lock):
	Move to <bits/mutex.h>.
	*  testsuite/30_threads/recursive_timed_mutex/cons/1.cc: Remove
	dg-require-gthreads-timed.
	*  testsuite/30_threads/recursive_timed_mutex/cons/assign_neg.cc:
	Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/cons/copy_neg.cc:
	Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/dest/
	destructor_locked.cc: Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/lock/1.cc: Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/lock/2.cc: Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc: Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc: Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
	Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
	Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
	Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
	Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
	Likewise.
	*  testsuite/30_threads/recursive_timed_mutex/unlock/1.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/cons/assign_neg.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/cons/copy_neg.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/dest/destructor_locked.cc:
	Likewise.
	*  testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/requirements/standard_layout.cc:
	Likewise.
	*  testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/try_lock_for/1.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/try_lock_for/2.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/try_lock_for/3.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/try_lock_until/1.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/try_lock_until/2.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/try_lock_until/57641.cc: Likewise.
	*  testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
	*  testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
	*  testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
	*  testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
	*  testsuite/30_threads/unique_lock/locking/4.cc: Likewise.

From-SVN: r227490
 2015-09-04 12:23:44 +01:00
Jonathan Wakely
c8c030589b Clean up libstdc++ includes slightly. 
* include/bits/shared_ptr_base.h: Add required header.
	* include/std/condition_variable: Likewise.
	* include/std/mutex: Remove unused header.
	* include/std/shared_mutex: Remove redundant header.
	(shared_mutex::shared_mutex()): Replace throw with __throw_bad_alloc.

From-SVN: r227469
 2015-09-03 21:40:03 +01:00
Sebastian Huber
d8e19f3114 re PR libstdc++/67408 (<mutex> assumes that __gthread_mutex_t and__gthread_recursive_mutex_t are the same types) 
2015-09-02  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	PR libstdc++/67408
	* include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Use
	_Derived::_M_timedlock().
	(timed_mutex): Add _M_timedlock() and make base class a friend.
	(recursive_timed_mutex): Likewise.

From-SVN: r227400
 2015-09-02 11:51:14 +01:00
Eelis van der Weegen
4c80e54478 shared_mutex (shared_mutex::unlock()): Fix typo. 
2015-08-13  Eelis van der Weegen  <eelis@eelis.net>

	* include/std/shared_mutex (shared_mutex::unlock()): Fix typo.

From-SVN: r226862
 2015-08-13 14:57:28 +01:00
Tim Shen
81b7ff079a regex_automaton.h (_State_base, _State<>): Remove _TraitsT dependency from _State<>... 
* include/bits/regex_automaton.h (_State_base, _State<>):
	Remove _TraitsT dependency from _State<>; Make matcher member
	into the union to reduce struct size.
	* include/bits/regex_automaton.tcc (_State_base<>::_M_print,
	_State_base<>::_M_dot, _StateSeq<>::_M_clone):
	Adjust to fit the interface. Factor out common parts in
	_M_clone as _State<>::_M_has_alt.
	* include/bits/regex_executor.h (_Executer<>::_M_lookahead):
	Only pass state id instead of the whole state.
	* include/bits/regex_executor.tcc (_Executer<>::_M_dfs,
	_Executer<>::_M_lookahead): Adjust to fit the interface.
	* include/std/regex: Include <ext/aligned_buffer.h>

From-SVN: r226395
 2015-07-30 10:35:45 +00:00
Jonathan Wakely
6af6bef4ac Implement N4502, the C++ Detection Idiom. 
* doc/xml/manual/status_cxx2017.xml: Update status table.
	* include/experimental/type_traits (void_t, is_detected,
	is_detected_v, detected_t, detected_or, detected_or_t,
	is_detected_exact, is_detected_exact_v, is_detected_convertible,
	is_detected_convertible_v): Define.
	* include/std/type_traits (__detector, __detected_or, __detected_or_t,
	__detected_or_t_): Define.
	* testsuite/experimental/type_traits/detection.cc: New.

From-SVN: r225242
 2015-07-01 13:23:54 +01:00
Ville Voutilainen
bf7818bfb0 Implement N4387, "Improving pair and tuple", and LWG 2367. 
2015-06-30  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Implement N4387, "Improving pair and tuple", and LWG 2367.

	* include/bits/stl_pair.h (_ConstructiblePair,
	_ImplicitlyConvertiblePair, _MoveConstructiblePair,
	_ImplicitlyMoveConvertiblePair): New.
	(pair()): Constrain it.
	(pair(const _T1&, const _T2&), pair(const pair<_U1, _U2>&),
	pair(_U1&&, const _T2&), pair(const _T1&, _U2&&), pair(_U1&&, _U2&&),
	pair(pair<_U1, _U2>&&)): Make conditionally explicit.
	* include/std/tuple (_TC, tuple::_TC2, tuple::TCC, tuple::TMC): New.
	(tuple()): Constrain it.
	(tuple(const _UElements&...), tuple(_UElements&&...),
	tuple(const tuple<_UElements...>&), tuple(tuple<_UElements...>&&),
	tuple(allocator_arg_t, const _Alloc&, const _UElements&...),
	tuple(allocator_arg_t, const _Alloc&, _UElements&&...),
	tuple(allocator_arg_t, const _Alloc&, const tuple<_UElements...>&),
	tuple(allocator_arg_t, const _Alloc&, tuple<_UElements...>&&),
	tuple(const pair<_U1, _U2>&), tuple(pair<_U1, _U2>&&),
	tuple(allocator_arg_t, const _Alloc&, const pair<_U1, _U2>&),
	tuple(allocator_arg_t, const _Alloc&, pair<_U1, _U2>&&)): Make
	conditionally explicit.
	* include/experimental/functional (__boyer_moore_array_base): Name
	array type explicitly instead of using an empty braced-init-list.
	* testsuite/20_util/pair/cons/explicit_construct.cc: New.
	* testsuite/20_util/pair/piecewise.cc: Use piecewise_construct.
	* testsuite/20_util/pair/requirements/dr2367.cc: New.
	* testsuite/20_util/tuple/cons/explicit_construct.cc: New.
	* testsuite/20_util/tuple/requirements/dr2367.cc: New.

From-SVN: r225189
 2015-06-30 14:26:49 +01:00
Jonathan Wakely
a2b5fdcbdb Implement N4258 (Cleaning-up noexcept in the Library rev 3) 
* doc/xml/manual/intro.xml: Document LWG 2108 status.
	* include/bits/alloc_traits.h (allocator_traits::is_always_equal):
	Define.
	* include/bits/allocator.h (allocator::is_always_equal): Likewise.
	* include/bits/forward_list.h
	(forward_list::operator=(forward_list&&)): Use __bool_constant.
	(forward_list::swap(forward_list&)): Add noexcept.
	* include/bits/hashtable.h (_Hashtable::operator=(_Hashtable&&)):
	Likewise.
	(_Hashtable::swap(_Hashtable&)): Likewise.
	* include/bits/stl_deque.h (_Deque_base::_Deque_base(_Deque_base&&)):
	Use _Alloc_traits::is_always_equal.
	(deque::operator=(deque&&)): Likewise.
	(deque::_M_move_assign1(deque&&, false_type)): Add comment and use
	__bool_constant.
	(swap(deque&, deque&)): Add noexcept.
	* include/bits/stl_list.h (list::operator=(list&&)): Use
	__bool_constant.
	(swap(list&, list&)): Add noexcept.
	* include/bits/stl_map.h (map::swap(map&)): Include _Compare in
	noexcept.
	(swap(map&, map&)): Add noexcept.
	* include/bits/stl_multimap.h (multimap::swap(multimap&)): Include
	_Compare in noexcept.
	(swap(multimap&, multimap&)): Add noexcept.
	* include/bits/stl_multiset.h (multiset::swap(multiset&)): Include
	_Compare in noexcept.
	(swap(multiset&, multiset&)): Add noexcept.
	* include/bits/stl_set.h (set::swap(set&)): Include _Compare in
	noexcept.
	(swap(set&, set&)): Add noexcept.
	* include/bits/stl_tree.h (_Rb_tree::operator=(_Rb_tree&&)): Include
	_Compare in noexcept.
	(_Rb_tree::_Rb_tree(_Rb_tree&&, _Node_alloc_type&&)): Use
	is_always_equal.
	* include/bits/stl_vector.h (vector::operator=(vector&&)): Use
	__bool_constant.
	(swap(vector&, vector&)): Add noexcept.
	* include/bits/unordered_map.h (swap(unordered_map&, unordered_map&),
	swap(unordered_multimap& unordered_multimap&)): Add noexcept.
	* include/bits/unordered_set.h (swap(unordered_set&, unordered_set&),
	swap(unordered_multiset& unordered_multiset&)): Add noexcept.
	* include/ext/alloc_traits.h (__allocator_always_compares_equal):
	Remove.
	(__alloc_traits::_S_always_equal()): Use is_always_equal instead of
	__allocator_always_compares_equal.
	* include/ext/array_allocator.h (array_allocator::is_always_equal):
	Define.
	* include/std/scoped_allocator (__any_of, __propagate_on_copy,
	__propagate_on_move, __propagate_on_swap): Remove.
	(scoped_allocator_adaptor::propagate_on_container_copy_assignment,
	scoped_allocator_adaptor::propagate_on_container_move_assignment,
	scoped_allocator_adaptor::propagate_on_container_swap): Define with
	__and_ instead of __any_of.
	(scoped_allocator_adaptor::is_always_equal): Define.
	* testsuite/20_util/allocator_traits/members/is_always_equal.cc: New.
	* testsuite/20_util/scoped_allocator/propagation.cc: Make traits
	derive from true_type or false_type.
	* testsuite/23_containers/deque/allocator/move_assign-2.cc: Add
	is_always_equal member and remove the trait specialization.
	* testsuite/23_containers/vector/52591.cc: Likewise.
	* testsuite/23_containers/deque/requirements/dr438/assign_neg.cc:
	Adjust dg-error line number.
	* testsuite/23_containers/deque/requirements/dr438/
	constructor_1_neg.cc: Likewise.
	* testsuite/23_containers/deque/requirements/dr438/
	constructor_2_neg.cc: Likewise.
	* testsuite/23_containers/deque/requirements/dr438/insert_neg.cc:
	Likewise.
	* testsuite/23_containers/list/requirements/dr438/assign_neg.cc:
	Likewise.
	* testsuite/23_containers/list/requirements/dr438/constructor_1_neg.cc:
	Likewise.
	* testsuite/23_containers/list/requirements/dr438/insert_neg.cc:
	Likewise.
	* testsuite/23_containers/vector/requirements/dr438/assign_neg.cc:
	Likewise.
	* testsuite/23_containers/vector/requirements/dr438/
	constructor_1_neg.cc: Likewise.
	* testsuite/23_containers/vector/requirements/dr438/
	constructor_2_neg.cc: Likewise.
	* testsuite/23_containers/vector/requirements/dr438/insert_neg.cc:
	Likewise.

From-SVN: r225081
 2015-06-26 21:10:24 +01:00
François Dumont
7d17de7f73 array: Include <array>. 
2015-06-23  François Dumont  <fdumont@gcc.gnu.org>

	* include/debug/array: Include <array>. Add version namespace when
	specializing tuple interface to array. Add specialization for
	__is_tuple_like_impl.
	* include/profile/array: Likewise.
	* include/std/array: Include <utility>. Add specialization for
	__is_tuple_like_impl.
	* include/std/tuple
	(__is_tuple_like_impl<>, __is_tuple_like_impl<pair>): Move...
	* include/std/utility: ... here. Include <type_traits>.
	* testsuite/23_containers/array/tuple_interface/get_debug_neg.cc: Adjust
	dg-error line number.
	* testsuite/23_containers/array/tuple_interface/
	tuple_element_debug_neg.cc: Likewise.

From-SVN: r224857
 2015-06-23 19:51:02 +00:00
Jonathan Wakely
7672ab25db tuple (__is_tuple_like_impl): Disambiguate array in debug and profile modes. 
* include/std/tuple (__is_tuple_like_impl): Disambiguate array in
	debug and profile modes.
	* testsuite/25_algorithms/headers/algorithm/synopsis.cc: Adjust tests
	for swap in C++11 and later.

From-SVN: r224397
 2015-06-12 00:22:19 +01:00
Jonathan Wakely
46ba128114 status_cxx2017.xml: Update status tables. 
* doc/xml/manual/status_cxx2017.xml: Update status tables.
	* doc/html/manual/*: Regenerate.
	* include/std/type_traits (bool_constant): Define.
	* testsuite/20_util/bool_constant/requirements.cc: New.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc:
	Likewise.

From-SVN: r224160
 2015-06-05 18:17:53 +01:00
Jonathan Wakely
712266515f shared_mutex (__shared_mutex_pthread, [...]): New helper types implementing the shared mutex requirements. 
* include/std/shared_mutex (__shared_mutex_pthread,
	__shared_mutex_cv): New helper types implementing the shared mutex
	requirements.
	(shared_mutex): New type for C++17.
	(shared_timed_mutex): Derive from one of the new helper types.
	* testsuite/30_threads/shared_mutex/cons/1.cc: New.
	* testsuite/30_threads/shared_mutex/cons/assign_neg.cc: New.
	* testsuite/30_threads/shared_mutex/cons/copy_neg.cc: New.
	* testsuite/30_threads/shared_mutex/requirements/standard_layout.cc:
	New.
	* testsuite/30_threads/shared_mutex/try_lock/1.cc: New.
	* testsuite/30_threads/shared_mutex/try_lock/2.cc: New.

From-SVN: r224158
 2015-06-05 17:31:05 +01:00
Ville Voutilainen
ddb63209a8 Add __is_nothrow_swappable and take it into use. 
2015-06-04  Ville Voutilainen  <ville.voutilainen@gmail.com>

	Add __is_nothrow_swappable and take it into use.
	* include/bits/algorithmfwd.h (swap): Only declare for C++98 mode.
	* include/bits/move.h (swap): Add constraints in C++11 and later.
	* include/bits/stl_pair.h (swap): Use __is_nothrow_swappable
	for the free swap function for pair.
	* include/bits/stl_queue.h (swap): Use __is_nothrow_swappable
	for the free swap functions for queue and priority_queue.
	* include/bits/stl_stack.h (swap): Use __is_nothrow_swappable
	for the free swap function for stack.
	* include/debug/array (swap): Use __is_nothrow_swappable
	for the free swap function for array.
	* include/profile/array (swap): Likewise.
	* include/std/array (swap): Likewise.
	* include/std/tuple (_Tuple_impl::_M_swap): Use __is_nothrow_swappable.
	* include/std/type_traits (__is_swappable_impl::__is_swappable,
	__is_nothrow_swappable_impl, __is_nothrow_swappable): New.
	* testsuite/20_util/is_nothrow_swappable/requirements/
	explicit_instantiation.cc: New.
	* testsuite/20_util/is_nothrow_swappable/requirements/typedefs.cc:
	New.
	* testsuite/20_util/is_nothrow_swappable/value.cc: New.

From-SVN: r224153
 2015-06-05 15:44:26 +01:00
Jonathan Wakely
75eb64433e future (__async_result_of): New alias template. 
* include/std/future (__async_result_of): New alias template.
	(async): Use __async_result_of to pass decayed types to result_of.
	* testsuite/30_threads/async/lwg2021.cc: New.
	* doc/xml/manual/intro.xml: Document LWG 2021 status.

From-SVN: r223866
 2015-05-29 14:44:52 +01:00
Jonathan Wakely
6a344b953a re PR libstdc++/65352 (array<T,0>::begin()/end() etc. forms a null reference and breaks on clang+ubsan) 
PR libstdc++/65352
	* include/std/array (__array_traits::_S_ptr): New function.
	(array::data): Use _S_ptr to avoid creating invalid reference.
	* testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust
	dg-error line numbers.
	* testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc:
	likewise.

From-SVN: r223806
 2015-05-28 12:53:35 +01:00
Jonathan Wakely
e6508eaf69 future (packaged_task(allocator_arg_t, const A&, F&&): Remove explicit (LWG 2407). 
* include/std/future (packaged_task(allocator_arg_t, const A&, F&&):
	Remove explicit (LWG 2407).

From-SVN: r223161
 2015-05-13 14:54:40 +01:00
Jonathan Wakely
d0cad9fef0 * include/std/complex (polar): Check for negative rho (LWG 2459). 
From-SVN: r223159
 2015-05-13 14:32:31 +01:00
Jonathan Wakely
ac68f97cfe tuple (apply): Handle pointers to member (LWG 2418). 
* include/experimental/tuple (apply): Handle pointers to member (LWG
	2418).
	* include/std/functional (_Mem_fn_base): Make constructors constexpr.
	(_Maybe_wrap_member_pointer::__do_wrap): Make constexpr.
	* testsuite/experimental/tuple/apply.cc: Test pointer to member.

From-SVN: r223158
 2015-05-13 14:12:48 +01:00
Jonathan Wakely
f6341d8d09 re PR libstdc++/51617 ([C++0x] async(f) isn't.) 
PR libstdc++/51617
	* include/std/future (async): Change default policy to launch::async.

From-SVN: r222793
 2015-05-05 02:56:47 +01:00
Jonathan Wakely
cb2ef49e83 re PR libstdc++/65978 (missing constexpr on std::forward_as_tuple and std::tie (LWG issues 2275 and 2301)) 
PR libstdc++/65978
	* include/std/tuple (forward_as_tuple, tie): Add constexpr.
	* testsuite/20_util/tuple/creation_functions/constexpr.cc: Uncomment
	and fix tests for forward_as_tuple and tie.

From-SVN: r222719
 2015-05-02 12:20:03 +01:00
Jonathan Wakely
6fc456c36b memory (pointer_safety, [...]): Define. 
* include/std/memory (pointer_safety, declare_reachable,
	undeclare_reachable, declare_no_pointers, undeclare_no_pointers,
	get_pointer_safety): Define.
	* testsuite/20_util/pointer_safety/1.cc: New.

From-SVN: r222674
 2015-05-01 12:02:18 +01:00
Jonathan Wakely
0ca7ba9aa6 Implement N4100 File System TS 
* acinclude.m4 (GLIBCXX_ENABLE_FILESYSTEM_TS): Define.
	(GLIBCXX_CHECK_FILESYSTEM_DEPS): Define.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* configure.ac: Enable filesystem TS and check its dependencies.
	* include/Makefile.am: Add new headers.
	* include/Makefile.in: Regenerate.
	* include/bits/locale_conv.h (__do_str_code_cvt, __str_codecvt_in,
	__str_codecvt_out): Move code conversion logic from wstring_convert
	into new global functions.
	(wstring_convert::to_bytes, wstring_convert::from_bytes): Use new
	functions.
	(wstring_convert::_M_conv): Remove.
	* include/bits/quoted_string.h (_Quoted_string): Split out of iomanip.
	* include/experimental/filesystem: New.
	* include/experimental/fs_dir.h: New.
	* include/experimental/fs_fwd.h: New.
	* include/experimental/fs_ops.h: New.
	* include/experimental/fs_path.h: New.
	* include/std/iomanip (_Quoted_string): Move to bits/quoted_string.h.
	* python/libstdcxx/v6/printers.py (StdExpPathPrinter): Add.
	* src/Makefile.am (SUBDIRS): Add filesystem.
	* src/Makefile.in: Regenerate.
	* src/filesystem/Makefile.am: New.
	* src/filesystem/Makefile.in: New.
	* src/filesystem/dir.cc: New.
	* src/filesystem/ops.cc: New.
	* src/filesystem/path.cc: New.
	* testsuite/experimental/filesystem/operations/absolute.cc: New.
	* testsuite/experimental/filesystem/operations/copy.cc: New.
	* testsuite/experimental/filesystem/operations/current_path.cc: New.
	* testsuite/experimental/filesystem/path/append/path.cc: New.
	* testsuite/experimental/filesystem/path/assign/assign.cc: New.
	* testsuite/experimental/filesystem/path/assign/copy.cc: New.
	* testsuite/experimental/filesystem/path/compare/compare.cc: New.
	* testsuite/experimental/filesystem/path/compare/path.cc: New.
	* testsuite/experimental/filesystem/path/compare/strings.cc: New.
	* testsuite/experimental/filesystem/path/concat/path.cc: New.
	* testsuite/experimental/filesystem/path/concat/strings.cc: New.
	* testsuite/experimental/filesystem/path/construct/copy.cc: New.
	* testsuite/experimental/filesystem/path/construct/default.cc: New.
	* testsuite/experimental/filesystem/path/construct/locale.cc: New.
	* testsuite/experimental/filesystem/path/construct/range.cc: New.
	* testsuite/experimental/filesystem/path/decompose/extension.cc: New.
	* testsuite/experimental/filesystem/path/decompose/filename.cc: New.
	* testsuite/experimental/filesystem/path/decompose/parent_path.cc:
	New.
	* testsuite/experimental/filesystem/path/decompose/relative_path.cc:
	New.
	* testsuite/experimental/filesystem/path/decompose/root_directory.cc:
	New.
	* testsuite/experimental/filesystem/path/decompose/root_name.cc:
	New.
	* testsuite/experimental/filesystem/path/decompose/root_path.cc:
	New.
	* testsuite/experimental/filesystem/path/decompose/stem.cc: New.
	* testsuite/experimental/filesystem/path/generic/generic_string.cc:
	New.
	* testsuite/experimental/filesystem/path/itr/traversal.cc: New.
	* testsuite/experimental/filesystem/path/modifiers/clear.cc: New.
	* testsuite/experimental/filesystem/path/modifiers/make_preferred.cc:
	New.
	* testsuite/experimental/filesystem/path/modifiers/remove_filename.cc:
	New.
	* testsuite/experimental/filesystem/path/modifiers/replace_extension.cc:
	New.
	* testsuite/experimental/filesystem/path/modifiers/replace_filename.cc:
	New.
	* testsuite/experimental/filesystem/path/modifiers/swap.cc: New.
	* testsuite/experimental/filesystem/path/nonmember/hash_value.cc: New.
	* testsuite/experimental/filesystem/path/query/empty.cc: New.
	* testsuite/experimental/filesystem/path/query/has_extension.cc: New.
	* testsuite/experimental/filesystem/path/query/has_filename.cc: New.
	* testsuite/experimental/filesystem/path/query/has_parent_path.cc:
	New.
	* testsuite/experimental/filesystem/path/query/has_relative_path.cc:
	New.
	* testsuite/experimental/filesystem/path/query/has_root_directory.cc:
	New.
	* testsuite/experimental/filesystem/path/query/has_root_name.cc:
	New.
	* testsuite/experimental/filesystem/path/query/has_root_path.cc:
	New.
	* testsuite/experimental/filesystem/path/query/has_stem.cc: New.
	* testsuite/experimental/filesystem/path/query/is_relative.cc: New.
	* testsuite/util/testsuite_fs.h: New.

From-SVN: r222654
 2015-04-30 20:11:52 +01:00
Jonathan Wakely
952bc7a64c re PR libstdc++/65760 (invalid use of incomplete type with std::is_convertible<C, C>) 
PR libstdc++/65760
	* include/std/functional (__check_func_return_type): Use is_same to
	avoid using _is_convertible on incomplete types.
	* testsuite/20_util/function/65760.cc: New.

From-SVN: r222581
 2015-04-29 17:07:47 +01:00
Marc Glisse
fa9ac91269 re PR libstdc++/65883 (numeric_limits<unsigned __int128>::max() returns incorrect value) 
2015-04-28  Marc Glisse  <marc.glisse@inria.fr>

	PR libstdc++/65883
	* include/std/limits (numeric_limits): Add missing unsigned.

From-SVN: r222540
 2015-04-28 19:35:49 +00:00
Jonathan Wakely
73d81d3a6b re PR libstdc++/60333 (type_traits make_signed, make_unsigned missing support for long long enumerations) 
PR libstdc++/60333
	* include/std/type_traits (__make_unsigned_selector<_Tp, false, true>):
	Handle enumeration types larger than sizeof(long).
	(__make_signed_selector<_Tp, false, true>): Find unsigned type then
	make it signed.
	* testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/20_util/make_signed/requirements/typedefs-3.cc: New.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust
	dg-error.
	* testsuite/20_util/make_unsigned/requirements/typedefs-3.cc: New.

From-SVN: r222526
 2015-04-28 14:21:54 +01:00
Jonathan Wakely
bd1eb5e092 type_traits (void_t): Add. 
* include/std/type_traits (void_t): Add.
	* testsuite/20_util/void_t/1.cc: New.

From-SVN: r222522
 2015-04-28 13:07:34 +01:00
Jonathan Wakely
c3d71b62c6 shared_mutex (shared_timed_mutex): Only use pthread_rwlock_t when the POSIX Timeouts option is supported. 
* include/std/shared_mutex (shared_timed_mutex): Only use
	pthread_rwlock_t when the POSIX Timeouts option is supported.
	* testsuite/30_threads/shared_lock/cons/5.cc: Remove
	dg-require-gthreads-timed.
	* testsuite/30_threads/shared_lock/cons/6.cc: Likewise.
	* testsuite/30_threads/shared_lock/locking/3.cc: Likewise.
	* testsuite/30_threads/shared_lock/locking/4.cc: Likewise.

From-SVN: r221971
 2015-04-10 10:00:00 +01:00
Jonathan Wakely
43b0e124e4 shared_mutex (shared_timed_mutex): Add comments to explain the logic in the non-pthread_rwlock_t version. 
* include/std/shared_mutex (shared_timed_mutex): Add comments to
	explain the logic in the non-pthread_rwlock_t version.
	(_Mutex): Remove redundant type.
	(_M_n_readers): Rename to _S_max_readers.
	(_M_write_entered, _M_readers): New convenience functions.
	(lock, lock_shared, try_lock_shared, unlock_shared): Use convenience
	functions. Use predicates with condition variables. Simplify bitwise
	operations.
	(try_lock_for, try_shared_lock_for): Convert duration to time_point
	and call try_lock_until or try_shared_lock_until respectively.
	(try_lock_until, try_shared_lock_until): Wait on the condition
	variables until the specified time passes.
	(unlock): Add Debug Mode assertion.
	(unlock_shared): Add Debug Mode assertion.
	* testsuite/30_threads/shared_timed_mutex/try_lock/3.cc: New.

From-SVN: r221970
 2015-04-10 09:59:54 +01:00
Jonathan Wakely
4cbaaa459e re PR libstdc++/65147 (alignment of std::atomic object is not correct) 
2015-04-09  Jonathan Wakely  <jwakely@redhat.com>
	    Richard Henderson  <rth@redhat.com>

	PR libstdc++/65147
	* include/bits/atomic_base.h (__atomic_base<_ITp>): Increase
	alignment.
	* include/std/atomic (atomic): For types with a power of two size set
	alignment to at least the size.
	* testsuite/29_atomics/atomic/60695.cc: Adjust dg-error line number.
	* testsuite/29_atomics/atomic/65147.cc: New.
	* testsuite/29_atomics/atomic_integral/65147.cc: New.

Co-Authored-By: Richard Henderson <rth@redhat.com>

From-SVN: r221945
 2015-04-09 12:15:44 +01:00
Jonathan Wakely
04f69fda7a re PR libstdc++/65499 (Missing "using namespace literals::chrono_literals" in std::chrono) 
PR libstdc++/65499
	* include/std/chrono: Add using-directive for literals to std::chrono.
	* testsuite/20_util/duration/literals/65499.cc: New.

From-SVN: r221730
 2015-03-27 12:45:10 +00:00
Jonathan Wakely
d1a74a287e re PR libstdc++/58038 (std::this_thread::sleep_until can cause inifinite sleep) 
PR libstdc++/58038
	PR libstdc++/60421
	* include/std/thread (this_thread::sleep_for): Check for negative
	durations.
	(this_thread::sleep_until): Check for times in the past.
	* testsuite/30_threads/this_thread/58038.cc: New.
	* testsuite/30_threads/this_thread/60421.cc: New.

From-SVN: r221708
 2015-03-26 19:59:08 +00:00
Jonathan Wakely
4280698d09 re PR libstdc++/62259 (atomic class doesn't enforce required alignment on powerpc64) 
PR libstdc++/62259
	PR libstdc++/65147
	* include/std/atomic (atomic<T>): Increase alignment for types with
	the same size as one of the integral types.
	* testsuite/29_atomics/atomic/60695.cc: Adjust dg-error line number.
	* testsuite/29_atomics/atomic/62259.cc: New.

From-SVN: r221703
 2015-03-26 19:27:02 +00:00
Richard Henderson
8be568519b re PR libstdc++/65033 (C++11 atomics: is_lock_free result does not always match the real lock-free property) 
PR libstdc++/65033

 * include/bits/atomic_base.h (__atomic_base<T>::is_lock_free): Build
 a fake pointer indicating type alignment.
 (__atomic_base<T *>::is_lock_free): Likewise.
 * include/std/atomic (atomic<T>::is_lock_free): Likewise.

From-SVN: r221701
 2015-03-26 11:31:11 -07:00
Paolo Carlini
ea348bbe59 re PR libstdc++/65543 (rvalue stream insertion and extraction operators incorrectly implemented) 
2015-03-25  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/65543
	* include/std/istream (operator>>(basic_istream<>&&, _Tp&): Revert
	thinko in r150387.
	* include/std/ostream (operator<<(basic_ostream<>&&, const _Tp&):
	Likewise.
	* testsuite/27_io/rvalue_streams-2.cc: New.

From-SVN: r221655
 2015-03-25 09:57:06 +00:00
Jonathan Wakely
5e0216f173 acinclude.m4 (GLIBCXX_CHECK_GTHREADS): Check for pthread_rwlock_t. 
2015-03-18  Jonathan Wakely  <jwakely@redhat.com>
	    Torvald Riegel  <triegel@redhat.com>

	* acinclude.m4 (GLIBCXX_CHECK_GTHREADS): Check for pthread_rwlock_t.
	* config.h.in: Regenerate.
	* configure: Regenerate.
	* include/std/shared_mutex: Check _GLIBCXX_USE_PTHREAD_RWLOCK_T.
	(shared_timed_mutex::_M_rwlock): Use PTHREAD_RWLOCK_INITIALIZER.
	(shared_timed_mutex::lock_shared()): Retry on EAGAIN.
	(shared_timed_mutex::try_lock_shared_until()): Retry on EAGAIN and
	EDEADLK.

Co-Authored-By: Torvald Riegel <triegel@redhat.com>

From-SVN: r221484
 2015-03-18 10:53:38 +00:00
Jonathan Wakely
664e99eac4 future (future_error(error_code)): Construct base class with error_code's message. 
* include/std/future (future_error(error_code)): Construct base
	class with error_code's message.
	* src/c++11/future.cc (future_error::what()): Do not call c_str() on
	temporary string.

From-SVN: r221236
 2015-03-06 12:31:43 +00:00
Jonathan Wakely
b6584a72ac re PR libstdc++/64797 (22_locale/conversions/string/2.cc FAILs) 
PR libstdc++/64797
	* include/bits/locale_conv.h (wstring_convert::_M_conv): Handle
	incomplete multibyte sequences correctly.
	* include/std/codecvt (codecvt_utf8, codecvt_utf16,
	codecvt_utf8_utf16): Limit _Maxcode to maximum Unicode code point.
	* src/c++11/codecvt.cc (invalid_mb_sequence, incomplete_mb_character):
	Define constants.
	(is_high_surrogate, is_low_surrogate, surrogate_pair_to_code_point):
	Define convenience functions.
	(read_utf8_code_point): Return relevant constant to distinguish
	incomplete characters from invalid sequences.
	(read_utf16_code_point): Likewise. Check for invalid sequences.
	(ucs4_in, utf16_in): Use incomplete_mb_character constant.
	(utf16_out): Check for invalid sequences.
	(utf16_span): Fix condition.
	(ucs2_out): Use is_high_surrogate.
	(ucs2_in): Use incomplete_mb_character constant and fix condition.
	* testsuite/22_locale/codecvt/char16_t.cc: Fix whitespace.
	* testsuite/22_locale/conversions/buffer/1.cc: New.
	* testsuite/22_locale/conversions/string/2.cc: Use char16_t and
	char32_t instead of wchar_t.
	* testsuite/22_locale/conversions/string/3.cc: New.

From-SVN: r221189
 2015-03-04 17:19:55 +00:00
Jonathan Wakely
9d8dbe732a re PR libstdc++/65279 (std::scoped_allocator_adaptor is not assignable) 
PR libstdc++/65279
	* include/std/scoped_allocator (__inner_type_impl,
	scoped_allocator_adaptor): Add defaulted copy assignment and move
	assignment operators.
	* testsuite/20_util/scoped_allocator/65279.cc: New.

From-SVN: r221119
 2015-03-02 17:50:55 +00:00
Jonathan Wakely
e59a2e945e re PR libstdc++/64367 (g++-v5/stdexcept:52:28: error: invalid use of non-static data member '_M_p') 
PR libstdc++/64367
	* include/std/stdexcept (__sso_string): Don't use non-static member
	in sizeof.

From-SVN: r221118
 2015-03-02 16:50:24 +00:00
Jonathan Wakely
85d44192f6 atomic_base.h: Use __always_inline__ instead of always_inline. 
* include/bits/atomic_base.h: Use __always_inline__ instead of
	always_inline.
	* include/bits/atomic_futex.h: Likewise.
	* include/bits/c++config: Use __abi_tag__ instead of abi_tag.
	* include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp: Use
	__packed__ instead of packed.
	* include/std/shared_mutex: Use __unused__ instead of unused.
	* testsuite/17_intro/headers/c++1998/all_attributes.cc: New.
	* testsuite/17_intro/headers/c++200x/all_attributes.cc: New.
	* testsuite/17_intro/headers/c++2014/all_attributes.cc: New.

From-SVN: r220243
 2015-01-29 12:47:20 +00:00
Jonathan Wakely
506f03c370 re PR target/64368 (Several libstdc++ test failures on non-linux platforms after r218964.) 
PR libstdc++/64368
	* include/std/shared_mutex (shared_timed_mutex::try_lock_for,
	shared_timed_mutex::try_lock_until): Only define when POSIX thread
	timeouts option is supported.
	(shared_timed_mutex::try_shared_lock_for,
	shared_timed_mutex::try_shared_lock_until): Likewise.

From-SVN: r220161
 2015-01-27 11:12:04 +00:00
Jonathan Wakely
0e4974d62e re PR libstdc++/64658 (std::atomic_init() undefined) 
PR libstdc++/64658
	* include/std/atomic (atomic_init): Define.
	* testsuite/29_atomics/atomic/64658.cc: New.

From-SVN: r219886
 2015-01-20 11:50:43 +00:00
Tim Shen
60c176fb45 re PR libstdc++/64584 (basic_regex::assign breaks *this if it throws regex_error) 
PR libstdc++/64584
	PR libstdc++/64585
	* include/bits/regex.h (basic_regex<>::basic_regex,
	basic_regex<>::assign, basic_regex<>::imbue,
	basic_regex<>::swap, basic_regex<>::mark_count): Drop NFA after
	imbuing basic_regex; Make assign() transactional against exception.
	* include/bits/regex_compiler.h (__compile_nfa<>): Add back
	__compile_nfa SFINAE.
	* include/std/regex: Adjust include order to avoid __compile_nfa
	forward declaration.
	* testsuite/28_regex/basic_regex/assign/char/string.cc: New testcase.
	* testsuite/28_regex/basic_regex/imbue/string.cc: New testcase.

From-SVN: r219865
 2015-01-19 22:56:04 +00:00
Jonathan Wakely
d31b87976f re PR libstdc++/60940 (general operations on atomic types do not work with atomic integral typedefs) 
PR libstdc++/60940
	* include/bits/atomic_base.h: Remove atomic integral typedefs as
	synonyms for __atomic_base<int> etc.
	* include/std/atomic: Make atomic_int a synonym for atomic<int> and
	likewise for all atomic integral types.
	* testsuite/29_atomics/atomic_integral/cons/copy_list.cc: New.
	* testsuite/29_atomics/atomic/60695.cc: Adjust dg-error line number.

From-SVN: r219790
 2015-01-17 01:23:28 +00:00
Jonathan Wakely
3ecec1eff7 re PR libstdc++/56785 (std::tuple of two elements does not apply empty base class optimization when one of its elements is a std::tuple with two elements) 
PR libstdc++/56785
	* include/std/tuple (_Tuple_impl): Remove zero-element specialization
	and define one-element specialization.
	* testsuite/20_util/tuple/56785.cc: New.

From-SVN: r219785
 2015-01-17 00:21:41 +00:00
Jonathan Wakely
96d8c147aa locale_conv.h (wstring_convert, [...]): New. 
* include/bits/locale_conv.h (wstring_convert, wbuffer_convert): New.
	* include/std/locale: Include new header.
	* include/Makefile.am: Add it.
	* include/Makefile.in: Regenerate.
	* testsuite/22_locale/conversions/buffer/requirements/typedefs.cc: New.
	* testsuite/22_locale/conversions/string/1.cc: New.
	* testsuite/22_locale/conversions/string/2.cc: New.
	* testsuite/22_locale/conversions/string/requirements/typedefs.cc: New.
	* testsuite/22_locale/conversions/string/requirements/typedefs-2.cc:
	New.

From-SVN: r219780
 2015-01-16 23:38:48 +00:00
Jonathan Wakely
28af1fb39d Implement C++11 <codecvt> header. 
* config/abi/pre/gnu.ver: Export new symbols.
	* include/Makefile.am: Add codecvt.
	* include/Makefile.in: Regenerate.
	* include/std/codecvt: New header.
	* src/c++11/codecvt.cc (__codecvt_utf8_base, __codecvt_utf16_base,
	__codecvt_utf8_utf16_base): Define specializations.
	* testsuite/22_locale/codecvt/codecvt_utf8/requirements/1.cc: New.
	* testsuite/22_locale/codecvt/codecvt_utf16/requirements/1.cc: New.
	* testsuite/22_locale/codecvt/codecvt_utf8_utf16/requirements/1.cc:
	New.

From-SVN: r219779
 2015-01-16 23:38:35 +00:00
Torvald Riegel
eae801bacc libstdc++: Optimize synchronization in std::future if futexes are available. 
* src/c++11/futex.cc: New file.
	* include/bits/atomic_futex.h: New file.
	* include/std/future (__future_base::_State_baseV2): Use
	atomic_futex_unsigned instead of mutex+condvar.
	* src/c++11/futex.cc: Likewise.
	* include/Makefile.am: Add atomic_futex.h.
	* include/Makefile.in: Likewise.
	* src/c++11/Makefile.am: Add futex.cc.
	* src/c++11/Makefile.in: Likewise.

From-SVN: r219770
 2015-01-16 19:50:43 +00:00