Utilities

Collaboration diagram for Utilities:

Modules
	Function Objects

Classes
struct	std::pair< _T1, _T2 >
struct	std::piecewise_construct_t

Functions
template<typename _Tp >
_Tp *	std::__addressof (_Tp &__r) noexcept
template<typename _Tp , typename _Up = _Tp>
_Tp	std::__exchange (_Tp &__obj, _Up &&__new_val)
template<typename _Tp >
_Tp *	std::addressof (_Tp &__r) noexcept
template<typename _Tp >
constexpr _Tp &&	std::forward (typename std::remove_reference< _Tp >::type &__t) noexcept
template<typename _Tp >
constexpr _Tp &&	std::forward (typename std::remove_reference< _Tp >::type &&__t) noexcept
template<typename _T1 , typename _T2 >
constexpr pair< typename __decay_and_strip< _T1 > ::__type, typename __decay_and_strip< _T2 > ::__type >	std::make_pair (_T1 &&__x, _T2 &&__y)
template<typename _Tp >
constexpr std::remove_reference< _Tp > ::type &&	std::move (_Tp &&__t) noexcept
template<typename _Tp >
constexpr conditional < __move_if_noexcept_cond< _Tp > ::value, const _Tp &, _Tp && > ::type	std::move_if_noexcept (_Tp &__x) noexcept
template<typename _T1 , typename _T2 >
constexpr bool	std::operator!= (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename _T1 , typename _T2 >
constexpr bool	std::operator< (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename _T1 , typename _T2 >
constexpr bool	std::operator<= (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename _T1 , typename _T2 >
constexpr bool	std::operator== (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename _T1 , typename _T2 >
constexpr bool	std::operator> (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename _T1 , typename _T2 >
constexpr bool	std::operator>= (const pair< _T1, _T2 > &__x, const pair< _T1, _T2 > &__y)
template<typename _Tp >
enable_if< __and_ < is_move_constructible< _Tp > , is_move_assignable< _Tp > >::value >::type	std::swap (_Tp &__a, _Tp &__b) noexcept(__and_< is_nothrow_move_constructible< _Tp >, is_nothrow_move_assignable< _Tp >>::value)
template<typename _Tp , size_t _Nm>
enable_if< __is_swappable< _Tp > ::value >::type	std::swap (_Tp(&__a)[_Nm], _Tp(&__b)[_Nm]) noexcept(__is_nothrow_swappable< _Tp >::value)
template<typename _T1 , typename _T2 >
void	std::swap (pair< _T1, _T2 > &__x, pair< _T1, _T2 > &__y) noexcept(noexcept(__x.swap(__y)))

Variables
constexpr piecewise_construct_t	std::piecewise_construct

Detailed Description

Function Documentation

template<typename _Tp >

_Tp* std::__addressof ( _Tp &  __r )

inlinenoexcept

Same as C++11 std::addressof.

Definition at line 47 of file move.h.

Referenced by std::_Destroy(), std::addressof(), std::list< _Tp, _Alloc >::merge(), __gnu_debug::_Safe_local_iterator< _Iterator, _Sequence >::operator->(), __gnu_debug::_Safe_iterator< _Iterator, _Sequence >::operator->(), std::forward_list< _Tp, _Alloc >::operator=(), std::list< _Tp, _Alloc >::operator=(), std::forward_list< _Tp, _Alloc >::remove(), std::list< _Tp, _Alloc >::remove(), std::rethrow_if_nested(), and std::list< __inp, __rebind_inp >::splice().

template<typename _Tp >

_Tp* std::addressof ( _Tp &  __r )

inlinenoexcept

Returns the actual address of the object or function referenced by r, even in the presence of an overloaded operator&.

Parameters

__r	Reference to an object or function.

Returns

The actual address.

Definition at line 135 of file move.h.

References std::__addressof().

Referenced by std::pointer_traits< _Tp * >::pointer_to().

template<typename _Tp >

constexpr _Tp&& std::forward ( typename std::remove_reference< _Tp >::type &  __t )

noexcept

Forward an lvalue.

Returns

The parameter cast to the specified type.

This function is used to implement "perfect forwarding".

Definition at line 76 of file move.h.

template<typename _Tp >

constexpr _Tp&& std::forward ( typename std::remove_reference< _Tp >::type &&  __t )

noexcept

Forward an rvalue.

Returns

The parameter cast to the specified type.

This function is used to implement "perfect forwarding".

Definition at line 87 of file move.h.

template<typename _T1 , typename _T2 >

constexpr pair<typename __decay_and_strip<_T1>::__type, typename __decay_and_strip<_T2>::__type> std::make_pair	(	_T1 &&	__x,
		_T2 &&	__y
	)

A convenience wrapper for creating a pair from two objects.

Parameters

__x	The first object.
__y	The second object.

Returns

A newly-constructed pair<> object of the appropriate type.

The standard requires that the objects be passed by reference-to-const, but LWG issue #181 says they should be passed by const value. We follow the LWG by default.

Definition at line 497 of file stl_pair.h.

Referenced by __gnu_parallel::__find_template(), __gnu_debug::__get_distance(), __gnu_parallel::__parallel_merge_advance(), __gnu_parallel::__parallel_sort_qsb(), __gnu_parallel::__qsb_local_sort_with_helping(), __gnu_debug::__valid_range_aux(), __gnu_parallel::__find_if_selector::_M_sequential_algorithm(), __gnu_parallel::__adjacent_find_selector::_M_sequential_algorithm(), __gnu_parallel::__find_first_of_selector< _FIterator >::_M_sequential_algorithm(), __gnu_parallel::multiseq_partition(), __gnu_parallel::multiseq_selection(), __gnu_parallel::parallel_multiway_merge(), __gnu_parallel::parallel_sort_mwms_pu(), and __gnu_pbds::detail::pat_trie_base::_Node_citer< Node, Leaf, Head, Inode, _CIterator, Iterator, _Alloc >::valid_prefix().

template<typename _Tp >

constexpr std::remove_reference<_Tp>::type&& std::move ( _Tp &&  __t )

noexcept

Convert a value to an rvalue.

Parameters

__t	A thing of arbitrary type.

Returns

The parameter cast to an rvalue-reference to allow moving it.

Definition at line 101 of file move.h.

template<typename _Tp >

constexpr conditional<__move_if_noexcept_cond<_Tp>::value, const _Tp&, _Tp&&>::type std::move_if_noexcept ( _Tp &  __x )

noexcept

Conditionally convert a value to an rvalue.

Parameters

__x	A thing of arbitrary type.

Returns

The parameter, possibly cast to an rvalue-reference.

Same as std::move unless the type's move constructor could throw and the type is copyable, in which case an lvalue-reference is returned instead.

Definition at line 121 of file move.h.

template<typename _T1 , typename _T2 >

constexpr bool std::operator!= ( const pair< _T1, _T2 > &  __x, const pair< _T1, _T2 > &  __y  )

inline

Uses operator== to find the result.

Definition at line 448 of file stl_pair.h.

template<typename _T1 , typename _T2 >

constexpr bool std::operator< ( const pair< _T1, _T2 > &  __x, const pair< _T1, _T2 > &  __y  )

inline

http://gcc.gnu.org/onlinedocs/libstdc++/manual/utilities.html

Definition at line 441 of file stl_pair.h.

References std::pair< _T1, _T2 >::first.

template<typename _T1 , typename _T2 >

constexpr bool std::operator<= ( const pair< _T1, _T2 > &  __x, const pair< _T1, _T2 > &  __y  )

inline

Uses operator< to find the result.

Definition at line 460 of file stl_pair.h.

template<typename _T1 , typename _T2 >

constexpr bool std::operator== ( const pair< _T1, _T2 > &  __x, const pair< _T1, _T2 > &  __y  )

inline

Two pairs of the same type are equal iff their members are equal.

Definition at line 435 of file stl_pair.h.

References std::pair< _T1, _T2 >::first, and std::pair< _T1, _T2 >::second.

template<typename _T1 , typename _T2 >

constexpr bool std::operator> ( const pair< _T1, _T2 > &  __x, const pair< _T1, _T2 > &  __y  )

inline

Uses operator< to find the result.

Definition at line 454 of file stl_pair.h.

template<typename _T1 , typename _T2 >

constexpr bool std::operator>= ( const pair< _T1, _T2 > &  __x, const pair< _T1, _T2 > &  __y  )

inline

Uses operator< to find the result.

Definition at line 466 of file stl_pair.h.

template<typename _Tp >

enable_if<__and_<is_move_constructible<_Tp>, is_move_assignable<_Tp> >::value>::type std::swap ( _Tp &  __a, _Tp &  __b  )

inlinenoexcept

Swaps two values.

Parameters

__a	A thing of arbitrary type.
__b	Another thing of arbitrary type.

Returns

Nothing.

Definition at line 179 of file move.h.

template<typename _Tp , size_t _Nm>

enable_if<__is_swappable<_Tp>::value>::type std::swap ( _Tp(&)  __a[_Nm], _Tp(&)  __b[_Nm]  )

inlinenoexcept

Swap the contents of two arrays.

Definition at line 202 of file move.h.

References std::swap().

template<typename _T1 , typename _T2 >

void std::swap ( pair< _T1, _T2 > &  __x, pair< _T1, _T2 > &  __y  )

inlinenoexcept

See std::pair::swap().

Definition at line 475 of file stl_pair.h.

Variable Documentation

constexpr piecewise_construct_t std::piecewise_construct

piecewise_construct

Definition at line 79 of file stl_pair.h.

Referenced by std::map< _Key, _Tp, _Compare, _Alloc >::operator[]().