4 * Hewlett-Packard Company
6 * Permission to use, copy, modify, distribute and sell this software
7 * and its documentation for any purpose is hereby granted without fee,
8 * provided that the above copyright notice appear in all copies and
9 * that both that copyright notice and this permission notice appear
10 * in supporting documentation. Hewlett-Packard Company makes no
11 * representations about the suitability of this software for any
12 * purpose. It is provided "as is" without express or implied warranty.
15 * Copyright (c) 1996,1997
16 * Silicon Graphics Computer Systems, Inc.
18 * Permission to use, copy, modify, distribute and sell this software
19 * and its documentation for any purpose is hereby granted without fee,
20 * provided that the above copyright notice appear in all copies and
21 * that both that copyright notice and this permission notice appear
22 * in supporting documentation. Silicon Graphics makes no
23 * representations about the suitability of this software for any
24 * purpose. It is provided "as is" without express or implied warranty.
27 /* NOTE: This is an internal header file, included by other STL headers.
28 * You should not attempt to use it directly.
31 #ifndef __SGI_STL_INTERNAL_PAIR_H
32 #define __SGI_STL_INTERNAL_PAIR_H
37 template <class _T1, class _T2>
39 typedef _T1 first_type;
40 typedef _T2 second_type;
44 #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
45 //265. std::pair::pair() effects overly restrictive
46 pair() : first(), second() {}
48 pair() : first(_T1()), second(_T2()) {}
50 pair(const _T1& __a, const _T2& __b) : first(__a), second(__b) {}
52 template <class _U1, class _U2>
53 pair(const pair<_U1, _U2>& __p) : first(__p.first), second(__p.second) {}
56 template <class _T1, class _T2>
57 inline bool operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
59 return __x.first == __y.first && __x.second == __y.second;
62 template <class _T1, class _T2>
63 inline bool operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
65 return __x.first < __y.first ||
66 (!(__y.first < __x.first) && __x.second < __y.second);
69 template <class _T1, class _T2>
70 inline bool operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
74 template <class _T1, class _T2>
75 inline bool operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
79 template <class _T1, class _T2>
80 inline bool operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
84 template <class _T1, class _T2>
85 inline bool operator>=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) {
89 template <class _T1, class _T2>
90 #ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS
91 //181. make_pair() unintended behavior
92 inline pair<_T1, _T2> make_pair(_T1 __x, _T2 __y)
94 inline pair<_T1, _T2> make_pair(const _T1& __x, const _T2& __y)
97 return pair<_T1, _T2>(__x, __y);
102 #endif /* __SGI_STL_INTERNAL_PAIR_H */