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Diffstat (limited to 'libstdc++-v3/bits/stl_pair.h')
-rw-r--r-- | libstdc++-v3/bits/stl_pair.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/libstdc++-v3/bits/stl_pair.h b/libstdc++-v3/bits/stl_pair.h new file mode 100644 index 0000000..a6155a6 --- /dev/null +++ b/libstdc++-v3/bits/stl_pair.h @@ -0,0 +1,101 @@ +/* + * + * 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: |