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41
42#ifndef QPAIR_H
43#define QPAIR_H
44
45#include <QtCore/qdatastream.h>
46
47QT_BEGIN_HEADER
48
49QT_BEGIN_NAMESPACE
50
51QT_MODULE(Core)
52
53template <class T1, class T2>
54struct QPair
55{
56 typedef T1 first_type;
57 typedef T2 second_type;
58
59 QPair() : first(T1()), second(T2()) {}
60 QPair(const T1 &t1, const T2 &t2) : first(t1), second(t2) {}
61
62 QPair<T1, T2> &operator=(const QPair<T1, T2> &other)
63 { first = other.first; second = other.second; return *this; }
64
65 T1 first;
66 T2 second;
67};
68
69template <class T1, class T2>
70Q_INLINE_TEMPLATE bool operator==(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
71{ return p1.first == p2.first && p1.second == p2.second; }
72
73template <class T1, class T2>
74Q_INLINE_TEMPLATE bool operator!=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
75{ return !(p1 == p2); }
76
77template <class T1, class T2>
78Q_INLINE_TEMPLATE bool operator<(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
79{
80 return p1.first < p2.first || (!(p2.first < p1.first) && p1.second < p2.second);
81}
82
83template <class T1, class T2>
84Q_INLINE_TEMPLATE bool operator>(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
85{
86 return p2 < p1;
87}
88
89template <class T1, class T2>
90Q_INLINE_TEMPLATE bool operator<=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
91{
92 return !(p2 < p1);
93}
94
95template <class T1, class T2>
96Q_INLINE_TEMPLATE bool operator>=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
97{
98 return !(p1 < p2);
99}
100
101template <class T1, class T2>
102Q_OUTOFLINE_TEMPLATE QPair<T1, T2> qMakePair(const T1 &x, const T2 &y)
103{
104 return QPair<T1, T2>(x, y);
105}
106
107#ifndef QT_NO_DATASTREAM
108template <class T1, class T2>
109inline QDataStream& operator>>(QDataStream& s, QPair<T1, T2>& p)
110{
111 s >> p.first >> p.second;
112 return s;
113}
114
115template <class T1, class T2>
116inline QDataStream& operator<<(QDataStream& s, const QPair<T1, T2>& p)
117{
118 s << p.first << p.second;
119 return s;
120}
121#endif
122
123QT_END_NAMESPACE
124
125QT_END_HEADER
126
127#endif // QPAIR_H
128