std::pair(3)

NAME
std::pair - pair holds two objects of arbitrary type.

SYNOPSIS

  Public Types
typedef _T1 first_type
typedef _T2 second_type

  Public Member Functions
template<class _U1 , class _U2 > pair & operator= (pair< _U1, _U2 > &&__p)
pair & operator= (pair &&__p)
template<class _U1 , class _Arg0 , class... _Args> pair (_U1 &&__x, _Arg0 &&__arg0, _Args &&...__args)
template<class _U1 , class _U2 > pair (pair< _U1, _U2 > &&__p)
template<class _U1 , class _U2 > pair (const pair< _U1, _U2 > &__p)
pair (pair &&__p)
template<class _U1 , class _U2 > pair (_U1 &&__x, _U2 &&__y)
pair (const _T1 &__a, const _T2 &__b)
pair ()
void swap (pair &&__p)

  Public Attributes
_T1 first
_T2 second

Detailed Description

  template<class _T1, class _T2> struct std::pair< _T1, _T2 >
pair holds two objects of arbitrary type.

Definition at line 72 of file stl_pair.h.

Member Typedef Documentation

  template<class _T1, class _T2> typedef _T1 std::pair< _T1, _T2 >::first_type

first_type is the first bound type

Definition at line 74 of file stl_pair.h.

  template<class _T1, class _T2> typedef _T2 std::pair< _T1, _T2 >::second_type

second_type is the second bound type

Definition at line 75 of file stl_pair.h.

Constructor & Destructor Documentation

  template<class _T1, class _T2> std::pair< _T1, _T2 >::pair () [inline]

The default constructor creates first and second using their respective default constructors.

Definition at line 84 of file stl_pair.h.

  template<class _T1, class _T2> 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 88 of file stl_pair.h.

  template<class _T1, class _T2> template<class _U1 , class _U2 > 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 104 of file stl_pair.h.

Member Data Documentation

  template<class _T1, class _T2> _T1 std::pair< _T1, _T2 >::first

first is a copy of the first object

Definition at line 77 of file stl_pair.h.

Referenced by std::_Temporary_buffer< _ForwardIterator, _Tp >::_Temporary_buffer(), std::set< _Key, _Compare, _Alloc >::insert(), and std::operator==().

  template<class _T1, class _T2> _T2 std::pair< _T1, _T2 >::second

second is a copy of the second object

Definition at line 78 of file stl_pair.h.

Referenced by std::_Temporary_buffer< _ForwardIterator, _Tp >::_Temporary_buffer(), std::set< _Key, _Compare, _Alloc >::insert(), and std::operator==().

Author

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