45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
/*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company and Microsoft
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* Corporation make no representations about the suitability of this
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* software for any purpose. It is provided "as is" without express or
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* implied warranty.
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*
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*/
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#ifndef PAIR_H
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#define PAIR_H
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#include <bool.h>
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template <class T1, class T2>
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struct pair {
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T1 first;
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T2 second;
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pair(const T1& a, const T2& b) : first(a), second(b) {}
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};
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template <class T1, class T2>
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inline bool operator==(const pair<T1, T2>& x, const pair<T1, T2>& y) {
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return x.first == y.first && x.second == y.second;
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}
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template <class T1, class T2>
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inline bool operator<(const pair<T1, T2>& x, const pair<T1, T2>& y) {
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return x.first < y.first || (!(y.first < x.first) && x.second < y.second);
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}
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template <class T1, class T2>
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inline pair<T1, T2> make_pair(const T1& x, const T2& y) {
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return pair<T1, T2>(x, y);
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}
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#endif
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