stl_pair.h
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文件大小:3k
源码类别:
STL
开发平台:
Visual C++
- /*
- *
- * Copyright (c) 1994
- * Hewlett-Packard Company
- *
- * Permission to use, copy, modify, distribute and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation. Hewlett-Packard Company makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- *
- *
- * Copyright (c) 1996,1997
- * Silicon Graphics Computer Systems, Inc.
- *
- * Permission to use, copy, modify, distribute and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation. Silicon Graphics makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- */
- /* NOTE: This is an internal header file, included by other STL headers.
- * You should not attempt to use it directly.
- */
- #ifndef __SGI_STL_INTERNAL_PAIR_H
- #define __SGI_STL_INTERNAL_PAIR_H
- __STL_BEGIN_NAMESPACE
- template <class _T1, class _T2>
- struct pair {
- typedef _T1 first_type;
- typedef _T2 second_type;
- _T1 first;
- _T2 second;
- pair() : first(_T1()), second(_T2()) {}
- pair(const _T1& __a, const _T2& __b) : first(__a), second(__b) {}
- #ifdef __STL_MEMBER_TEMPLATES
- template <class _U1, class _U2>
- pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) {}
- #endif
- };
- template <class _T1, class _T2>
- inline bool operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
- {
- return __x.first == __y.first && __x.second == __y.second;
- }
- template <class _T1, class _T2>
- inline bool operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
- {
- return __x.first < __y.first ||
- (!(__y.first < __x.first) && __x.second < __y.second);
- }
- #ifdef __STL_FUNCTION_TMPL_PARTIAL_ORDER
- template <class _T1, class _T2>
- inline bool operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
- return !(__x == __y);
- }
- template <class _T1, class _T2>
- inline bool operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
- return __y < __x;
- }
- template <class _T1, class _T2>
- inline bool operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
- return !(__y < __x);
- }
- template <class _T1, class _T2>
- inline bool operator>=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
- return !(__x < __y);
- }
- #endif /* __STL_FUNCTION_TMPL_PARTIAL_ORDER */
- template <class _T1, class _T2>
- inline pair<_T1, _T2> make_pair(const _T1& __x, const _T2& __y)
- {
- return pair<_T1, _T2>(__x, __y);
- }
- __STL_END_NAMESPACE
- #endif /* __SGI_STL_INTERNAL_PAIR_H */
- // Local Variables:
- // mode:C++
- // End: