Standard C++ Library Class Reference

T1 first;
T2 second;
pair();
pair (const T1&, const T2&);
~pair();
};
template <class T1, class T2>
bool operator== (const pair<T1, T2>&,
const pair T1, T2>&);
template <class T1, class T2>
bool operator< (const pair<T1, T2>&,
const pair T1, T2>&);
template <class T1, class T2>
pair<T1,T2> make_pair (const T1&, const T2&);
Constructors and Destructors
pair ();
Default contructor. Initializes first and second using their default constructors.
pair (const T1& x, const T2& y);
The constructor creates a pair of types T1 and T2, making the necessary conversions in x
and y.
~pair ();
Destructor.
Non-member Operators
template <class T1, class T2>
bool operator== (const pair<T1, T2>& x,
const pair T1, T2>& y);
Returns true if (x.first == y.first && x.second == y.second) is true. Otherwise it returns
false.
template <class T1, class T2>
bool operator< (const pair<T1, T2>& x,
const pair T1, T2>& y);
Returns true if (x.first < y.first || (!(y.first < x.first) && x.second < y.second)) is true.
Otherwise it returns false.