102 lines
2.9 KiB
C++
102 lines
2.9 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 makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*
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* Copyright (c) 1996,1997
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* Silicon Graphics Computer Systems, Inc.
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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. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*/
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/* NOTE: This is an internal header file, included by other STL headers.
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* You should not attempt to use it directly.
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*/
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#ifndef __SGI_STL_INTERNAL_PAIR_H
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#define __SGI_STL_INTERNAL_PAIR_H
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__STL_BEGIN_NAMESPACE
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template <class _T1, class _T2>
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struct pair {
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typedef _T1 first_type;
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typedef _T2 second_type;
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_T1 first;
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_T2 second;
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pair() : first(_T1()), second(_T2()) {}
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pair(const _T1& __a, const _T2& __b) : first(__a), second(__b) {}
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#ifdef __STL_MEMBER_TEMPLATES
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template <class _U1, class _U2>
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pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) {}
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#endif
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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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{
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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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{
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return __x.first < __y.first ||
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(!(__y.first < __x.first) && __x.second < __y.second);
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}
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#ifdef __STL_FUNCTION_TMPL_PARTIAL_ORDER
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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 == __y);
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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 __y < __x;
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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 !(__y < __x);
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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 < __y);
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}
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#endif /* __STL_FUNCTION_TMPL_PARTIAL_ORDER */
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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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{
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return pair<_T1, _T2>(__x, __y);
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}
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__STL_END_NAMESPACE
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#endif /* __SGI_STL_INTERNAL_PAIR_H */
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// Local Variables:
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// mode:C++
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// End:
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