std::pair< _T1, _T2 >(3) Library Functions Manual std::pair< _T1, _T2 >(3)
NAME
std::pair< _T1, _T2 > -
SYNOPSIS
Inherited by std::sub_match< _Bi_iter >.
Public Types
typedef _T1 first_type
typedef _T2 second_type
Public Member Functions
constexpr pair ()
constexpr pair (const _T1 &__a, const _T2 &__b)
template<class _U1 , class _U2 , class = typename enable_if<__and_<is_convertible<const _U1&,
_T1>, is_convertible<const _U2&, _T2>>::value>::type> constexpr pair (const pair< _U1, _U2 > &__p)
constexpr pair (const pair &)=default
constexpr pair (pair &&)=default
template<class _U1 , class = typename enable_if<is_convertible<_U1, _T1>::value>::type> constexpr pair (_U1 &&__x, const _T2 &__y)
template<class _U2 , class = typename enable_if<is_convertible<_U2, _T2>::value>::type> constexpr pair (const _T1 &__x, _U2 &&__y)
template<class _U1 , class _U2 , class = typename enable_if<__and_<is_convertible<_U1, _T1>, is_convertible<_U2,
_T2>>::value>::type> constexpr pair (_U1 &&__x, _U2 &&__y)
template<class _U1 , class _U2 , class = typename enable_if<__and_<is_convertible<_U1, _T1>, is_convertible<_U2,
_T2>>::value>::type> constexpr pair (pair< _U1, _U2 > &&__p)
template<typename... _Args1, typename... _Args2> pair (piecewise_construct_t, tuple< _Args1...>, tuple< _Args2...>)
void && noexcept (swap(second, __p.second)))
pair & operator= (const pair &__p)
pair & operator= (pair &&__p) noexcept(__and_< is_nothrow_move_assignable< _T1 >, is_nothrow_move_assignable< _T2 >>::value)
template<class _U1 , class _U2 > pair & operator= (const pair< _U1, _U2 > &__p)
template<class _U1 , class _U2 > pair & operator= (pair< _U1, _U2 > &&__p)
Public Attributes
_T1 first
_T2 second
Detailed Description
template<class _T1, class _T2>struct std::pair< _T1, _T2 >
Struct holding two objects of arbitrary type.
Template Parameters:
_T1 Type of first object.
_T2 Type of second object.
Definition at line 96 of file stl_pair.h.
Member Typedef Documentation
template<class _T1, class _T2> typedef _T2 std::pair< _T1, _T2 >::second_type
first_type is the first bound type
Definition at line 99 of file stl_pair.h.
Constructor &; Destructor Documentation
template<class _T1, class _T2> constexpr std::pair< _T1, _T2 >::pair () [inline]
second is a copy of the second object The default constructor creates first and second using their respective default constructors.
Definition at line 108 of file stl_pair.h.
template<class _T1, class _T2> constexpr std::pair< _T1, _T2 >::pair (const _T1 &__a, const _T2 &__b) [inline]
Two objects may be passed to a pair constructor to be copied.
Definition at line 112 of file stl_pair.h.
template<class _T1, class _T2> template<class _U1 , class _U2 , class = typename enable_if<__and_<is_convertible<const _U1&,
_T1>, is_convertible<const _U2&, _T2>>::value>::type> constexpr std::pair< _T1, _T2 >::pair (const pair< _U1, _U2 > &__p)
[inline]
There is also a templated copy ctor for the pair class itself.
Definition at line 124 of file stl_pair.h.
Member Data Documentation
template<class _T1, class _T2> _T1 std::pair< _T1, _T2 >::first
second_type is the second bound type
Definition at line 101 of file stl_pair.h.
Referenced by std::_Temporary_buffer< _ForwardIterator, _Tp >::_Temporary_buffer(), std::set< _StateIdT >::insert(), and std::operator==().
template<class _T1, class _T2> _T2 std::pair< _T1, _T2 >::second
first is a copy of the first object
Definition at line 102 of file stl_pair.h.
Referenced by std::_Temporary_buffer< _ForwardIterator, _Tp >::_Temporary_buffer(), std::set< _StateIdT >::insert(), and std::operator==().
Author
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libstdc++ Tue Jun 10 2014 std::pair< _T1, _T2 >(3)