Jonathan Wakely
3e9f67e6a2
Add std::apply for C++17
...
* doc/xml/manual/status_cxx2017.xml: Add missing LFTSv2 features.
* doc/html/manual/status.html: Regenerate.
* include/Makefile.am: Add new header.
* include/Makefile.in: Regenerate.
* include/bits/invoke.h: New header.
(__invoke): Make constexpr. Add && to types in exception specification.
* include/experimental/tuple (apply, __apply_impl): Fix non-reserved
names. Include <bits/invoke.h> and use std::__invoke.
* include/std/functional (__invfwd, __invoke_impl, __invoke): Move to
new header.
(invoke): Add && to types in exception specification.
* include/std/tuple (apply, __apply_impl): Define for C++17.
* testsuite/20_util/tuple/apply/1.cc: New test.
* testsuite/20_util/tuple/element_access/get_neg.cc: Adjust dg-error
lineno.
From-SVN: r239183
2016-08-06 01:06:02 +01:00
Jonathan Wakely
5f6acdfb0b
Implement C++17 rounding functions for std::chrono (P0092R1)
...
* include/std/chrono (floor, ceil, round, abs): New for C++17.
* testsuite/20_util/duration_cast/rounding.cc: New test.
* testsuite/20_util/time_point_cast/rounding.cc: New test.
* doc/xml/manual/status_cxx2017.xml: Update status table.
* doc/html/manual/status.html: Regenerate.
* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Adjust
dg-error lineno.
* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
* testsuite/20_util/duration/literals/range.cc: Likewise.
From-SVN: r239170
2016-08-05 14:52:59 +01:00
Jonathan Wakely
98e6e66233
Use __invoke in std::function internals
...
* include/std/functional (__callable_functor): Remove.
(_Function_handler::_M_invoke): Use __invoke instead of
__callable_functor or mem_fn.
(function::_Callable): Use lvalue in result_of expression.
(function): Remove TODO comments about allocators.
* testsuite/20_util/function/cons/refqual.cc: New test.
From-SVN: r239166
2016-08-05 10:00:34 +01:00
Jonathan Wakely
42183d034d
Define std::is_callable and std::is_nothrow_callable
...
* doc/xml/manual/status_cxx2017.xml: Update status table.
* include/std/functional (__inv_unwrap): Move to <type_traits>.
(__invoke_impl): Remove exception specifications.
(__invoke, invoke): Add exception specifications using
__is_nothrow_callable.
* include/std/type_traits (__inv_unwrap): Move from <functional>.
(__is_callable_impl, __call_is_nt, __call_is_nothrow): New helpers.
(__is_callable, __is_nothrow_callable): New traits.
(is_callable, is_callable_v): New C++17 traits.
(is_nothrow_callable, is_nothrow_callable_v): Likewise.
* testsuite/20_util/is_callable/requirements/
explicit_instantiation.cc: New test.
* testsuite/20_util/is_callable/requirements/
explicit_instantiation_ext.cc: New test.
* testsuite/20_util/is_callable/requirements/typedefs.cc: New test.
* testsuite/20_util/is_callable/requirements/typedefs_ext.cc: New
test.
* testsuite/20_util/is_callable/value.cc: New test.
* testsuite/20_util/is_callable/value_ext.cc: New test.
* testsuite/20_util/is_nothrow_callable/requirements/
explicit_instantiation.cc: New test.
* testsuite/20_util/is_nothrow_callable/requirements/
explicit_instantiation_ext.cc: New test.
* testsuite/20_util/is_nothrow_callable/requirements/typedefs.cc:
New test.
* testsuite/20_util/is_nothrow_callable/requirements/typedefs_ext.cc:
New test.
* testsuite/20_util/is_nothrow_callable/value.cc: New test.
* testsuite/20_util/is_nothrow_callable/value_ext.cc: New test.
From-SVN: r239145
2016-08-04 19:02:56 +01:00
Jonathan Wakely
7d2035fafe
Simplify std::__invoke_impl definitions
...
* include/std/functional (_Unwrap): Rename to __inv_unwrap.
(__invfwd): Adjust.
(__invoke_impl): Remove unused template parameters.
* testsuite/20_util/function_objects/invoke/59768.cc: Remove unused
parameter.
* testsuite/20_util/function_objects/invoke/ref_ext.cc: Copy 59768.cc
and test __invoke extension for C++11.
From-SVN: r239120
2016-08-04 12:09:29 +01:00
Jonathan Wakely
32eaac9c91
Define std::as_const
...
* include/std/utility (as_const): Define.
* testsuite/20_util/as_const/1.cc: New test.
* testsuite/20_util/as_const/rvalue_neg.cc: New test.
From-SVN: r239090
2016-08-03 19:11:23 +01:00
Jonathan Wakely
068c8ac17c
Define C++17 feature-test macros
...
* include/bits/allocator.h (__cpp_lib_incomplete_container_elements):
Define feature-test macro.
* include/bits/range_access.h (__cpp_lib_array_constexpr): Likewise.
* include/std/shared_mutex (__cpp_lib_shared_mutex): Uncomment.
* include/std/type_traits (__cpp_lib_logical_traits): Fix value.
(__cpp_lib_type_trait_variable_templates): Define.
From-SVN: r239088
2016-08-03 19:11:10 +01:00
Jonathan Wakely
27631a2542
Remove deprecated has_trivial_xxx traits
...
* include/std/type_traits (has_trivial_default_constructor): Remove.
(has_trivial_copy_constructor, has_trivial_copy_assign): Likewise.
* testsuite/20_util/has_trivial_copy_assign/requirements/
explicit_instantiation.cc: Remove test.
* testsuite/20_util/declval/requirements/1_neg.cc: Adjust dg-error
line number.
* testsuite/20_util/has_trivial_copy_assign/requirements/typedefs.cc:
Likewise.
* testsuite/20_util/has_trivial_copy_assign/value.cc: Likewise.
* testsuite/20_util/has_trivial_copy_constructor/requirements/
explicit_instantiation.cc: Likewise.
* testsuite/20_util/has_trivial_copy_constructor/requirements/
typedefs.cc: Likewise.
* testsuite/20_util/has_trivial_copy_constructor/value.cc: Likewise.
* testsuite/20_util/has_trivial_default_constructor/requirements/
explicit_instantiation.cc: Likewise.
* testsuite/20_util/has_trivial_default_constructor/requirements/
typedefs.cc: Likewise.
* testsuite/20_util/has_trivial_default_constructor/value.cc:
Likewise.
* testsuite/20_util/headers/type_traits/types_std_c++0x_neg.cc:
Check has_trivial_default_constructor, has_trivial_copy_constructor,
and has_trivial_copy_assign are not defined.
* testsuite/20_util/pair/requirements/dr801.cc: Remove commented out
tests.
* testsuite/20_util/tuple/requirements/dr801.cc: Likewise.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust
dg-error line number.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
Likewise.
From-SVN: r239079
2016-08-03 16:18:30 +01:00
Jonathan Wakely
3c040fa4a2
libstdc++/72745 add static assertion for invalid tuple access
...
PR libstdc++/72745
* include/std/array (get): Use positive message for static assertions.
* include/std/functional (_Safe_tuple_element_t): Fix indentation.
* include/std/tuple (tuple_element<I, tuple<>>): Add partial
specialization for invalid indices, with static assertion.
* testsuite/20_util/tuple/element_access/get_neg.cc: New test.
From-SVN: r238924
2016-07-31 18:08:52 +01:00
Ville Voutilainen
8c9142276b
Add missing variable traits, fix testsuite failures.
...
* include/bits/uses_allocator.h (uses_allocator_v): New.
* include/std/functional (is_bind_expression_v, is_placeholder_v):
Likewise.
* testsuite/20_util/bind/is_placeholder_v.cc: Likewise.
* testsuite/20_util/declval/requirements/1_neg.cc: Adjust.
* testsuite/20_util/duration/literals/range.cc: Likewise.
* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Likewise.
* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Likewise.
* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Likewise.
* testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Likewise.
* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
Likewise.
* testsuite/20_util/ratio/operations/ops_overflow_neg.cc: Likewise.
* testsuite/20_util/uses_allocator/requirements/uses_allocator_v.cc:
New.
From-SVN: r238921
2016-07-31 17:52:53 +03:00
Ville Voutilainen
137422c80c
Implement C++17 variable templates for type traits.
...
* include/std/chrono (treat_as_floating_point_v): New.
* include/std/ratio (ratio_equal_v, ratio_not_equal_v)
(ratio_less_v, ratio_less_equal_v, ratio_greater_v)
(ratio_greater_equal_v): Likewise.
* include/std/system_error (is_error_code_enum_v)
(is_error_condition_enum_v): Likewise.
* include/std/tuple (tuple_size_v): Likewise.
* type_traits (conjunction_v, disjunction_v, negation_v)
(is_void_v, is_null_pointer_v, is_integral_v, is_floating_point_v)
(is_array_v, is_pointer_v, is_lvalue_reference_v)
(is_rvalue_reference_v, is_member_object_pointer_v)
(is_member_function_pointer_v, is_enum_v, is_union_v)
(is_class_v, is_function_v, is_reference_v, is_arithmetic_v)
(is_fundamental_v, is_object_v, is_scalar_v, is_compound_v)
(is_member_pointer_v, is_const_v, is_volatile_v, is_trivial_v)
(is_trivially_copyable_v, is_standard_layout_v)
(is_pod_v, is_literal_type_v, is_empty_v, is_polymorphic_v)
(is_abstract_v, is_final_v, is_signed_v, is_unsigned_v)
(is_constructible_v, is_default_constructible_v)
(is_copy_constructible_v, is_move_constructible_v)
(is_assignable_v, is_copy_assignable_v, is_move_assignable_v)
(is_destructible_v, is_trivially_constructible_v)
(is_trivially_default_constructible_v)
(is_trivially_copy_constructible_v, is_trivially_move_constructible_v)
(is_trivially_assignable_v, is_trivially_copy_assignable_v)
(is_trivially_move_assignable_v, is_trivially_destructible_v)
(is_nothrow_constructible_v, is_nothrow_default_constructible_v)
(is_nothrow_copy_constructible_v, is_nothrow_move_constructible_v)
(is_nothrow_assignable_v, is_nothrow_copy_assignable_v)
(is_nothrow_move_assignable_v, is_nothrow_destructible_v)
(has_virtual_destructor_v, alignment_of_v, rank_v, extent_v)
(is_same_v, is_base_of_v, is_convertible_v): Likewise.
* testsuite/19_diagnostics/error_code/is_error_code_v.cc: Likewise.
* testsuite/20_util/duration/requirements/treat_as_floating_point_v.cc:
Likewise.
* testsuite/20_util/ratio/requirements/ratio_equal_v.cc: Likewise.
* testsuite/20_util/tuple/tuple_size_v.cc: Likewise.
* testsuite/20_util/variable_templates_for_traits.cc: Likewise.
From-SVN: r238892
2016-07-29 22:01:39 +03:00
Ville Voutilainen
ca8f2cb137
Implement std::string_view and P0254r2,
...
Integrating std::string_view and std::string.
* include/Makefile.am: Add string_view and string_view.tcc
to the exported headers.
* include/Makefile.in: Likewise.
* include/bits/basic_string.h: Include <string_view> in C++17 mode.
(__sv_type): New.
(basic_string(__sv_type, const _Alloc&)): Likewise.
(operator=(__sv_type)): Likewise.
(operator __sv_type()): Likewise.
(operator+=(__sv_type)): Likewise.
(append(__sv_type __sv)): Likewise.
(append(__sv_type, size_type, size_type)): Likewise.
(assign(__sv_type)): Likewise.
(assign(__sv_type, size_type, size_type)): Likewise.
(insert(size_type, __sv_type)): Likewise.
(insert(size_type, __sv_type, size_type, size_type)): Likewise.
(replace(size_type, size_type, __sv_type)): Likewise.
(replace(size_type, size_type, __sv_type, size_type, size_type)):
Likewise.
(replace(const_iterator, const_iterator, __sv_type)): Likewise.
(find(__sv_type, size_type)): Likewise.
(rfind(__sv_type, size_type)): Likewise.
(find_first_of(__sv_type, size_type)): Likewise.
(find_last_of(__sv_type, size_type)): Likewise.
(find_first_not_of(__sv_type, size_type)): Likewise.
(find_last_not_of(__sv_type, size_type)): Likewise.
(compare(__sv_type)): Likewise.
(compare(size_type, size_type, __sv_type)): Likewise.
(compare(size_type, size_type, __sv_type, size_type, size_type)):
Likewise.
* include/bits/string_view.tcc: New.
* include/std/string_view: Likewise.
* testsuite/21_strings/basic_string/cons/char/7.cc: Likewise.
* testsuite/21_strings/basic_string/cons/wchar_t/7.cc: Likewise.
* testsuite/21_strings/basic_string/modifiers/append/char/4.cc:
Likewise.
* testsuite/21_strings/basic_string/modifiers/append/wchar_t/4.cc:
Likewise.
* testsuite/21_strings/basic_string/modifiers/assign/char/4.cc:
Likewise.
* testsuite/21_strings/basic_string/modifiers/assign/wchar_t/4.cc:
Likewise.
* testsuite/21_strings/basic_string/modifiers/insert/char/3.cc:
Likewise.
* testsuite/21_strings/basic_string/modifiers/insert/wchar_t/3.cc:
Likewise.
* testsuite/21_strings/basic_string/modifiers/replace/char/7.cc:
Likewise.
* testsuite/21_strings/basic_string/modifiers/replace/wchar_t/7.cc:
Likewise.
* testsuite/21_strings/basic_string/operations/compare/char/2.cc:
Likewise.
* testsuite/21_strings/basic_string/operations/compare/wchar_t/2.cc:
Likewise.
* testsuite/21_strings/basic_string/operations/find/char/5.cc:
Likewise.
* testsuite/21_strings/basic_string/operations/find/wchar_t/5.cc:
Likewise.
* testsuite/21_strings/basic_string/operators/char/5.cc: Likewise.
* testsuite/21_strings/basic_string/operators/wchar_t/5.cc: Likewise.
* testsuite/21_strings/basic_string_view/capacity/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/cons/char/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/cons/char/2.cc: Likewise.
* testsuite/21_strings/basic_string_view/cons/char/3.cc: Likewise.
* testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/cons/wchar_t/2.cc: Likewise.
* testsuite/21_strings/basic_string_view/cons/wchar_t/3.cc: Likewise.
* testsuite/21_strings/basic_string_view/element_access/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/element_access/char/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/element_access/char/empty.cc:
Likewise.
* testsuite/21_strings/basic_string_view/element_access/char/front_back.cc:
Likewise.
* testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/element_access/wchar_t/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/element_access/wchar_t/empty.cc:
Likewise.
* testsuite/21_strings/basic_string_view/element_access/wchar_t/front_back.cc:
Likewise.
* testsuite/21_strings/basic_string_view/include.cc: Likewise.
* testsuite/21_strings/basic_string_view/inserters/char/1.cc: Likewise.
* testsuite/21_strings/basic_string_view/inserters/char/2.cc: Likewise.
* testsuite/21_strings/basic_string_view/inserters/char/3.cc: Likewise.
* testsuite/21_strings/basic_string_view/inserters/pod/10081-out.cc:
Likewise.
* testsuite/21_strings/basic_string_view/inserters/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/inserters/wchar_t/3.cc:
Likewise.
* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/modifiers/remove_prefix/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/modifiers/remove_suffix/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/compare/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/compare/char/13650.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/compare/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/compare/wchar_t/13650.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/copy/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/copy/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/data/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/data/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/char/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/char/3.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/char/4.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/wchar_t/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/wchar_t/3.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/find/wchar_t/4.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/rfind/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/rfind/char/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/rfind/char/3.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/3.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/string_conversion/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/substr/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operations/substr/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/operators/char/2.cc: Likewise.
* testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
Likewise.
* testsuite/21_strings/basic_string_view/range_access/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/range_access/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/wchar_t/1.cc:
Likewise.
* testsuite/21_strings/basic_string_view/requirements/typedefs.cc:
Likewise.
* testsuite/21_strings/basic_string_view/typedefs.cc: Likewise.
* testsuite/21_strings/basic_string_view/types/1.cc: Likewise.
From-SVN: r238823
2016-07-28 18:15:26 +03:00
Jonathan Wakely
e87b7d52c3
LWG 2441 Provide exact-width atomic typedefs
...
* include/std/atomic (atomic_int8_t, atomic_uint8_t, atomic_int16_t)
(atomic_uint16_t, atomic_int32_t, atomic_uint32_t, atomic_int64_t)
(atomic_uint64_t): Define (LWG 2441).
* testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc: Remove empty
lines.
* testsuite/29_atomics/headers/atomic/types_std_c++0x.cc: Test for
the new types.
* doc/xml/manual/intro.xml: Document DR 2441 status.
From-SVN: r238534
2016-07-20 19:21:59 +01:00
Jonathan Wakely
07c772ed4e
LWG 2328 Rvalue stream extraction should use perfect forwarding
...
* include/std/istream (operator>>(basic_istream&&, _Tp&)): Adjust
to use perfect forwarding (LWG 2328).
* testsuite/27_io/rvalue_streams.cc: Test perfect forwarding.
* doc/xml/manual/intro.xml: Document DR 2328 status.
From-SVN: r238533
2016-07-20 19:21:53 +01:00
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