qpair.h
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上传日期:2022-06-22
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- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the QtCore module of the Qt Toolkit.
- **
- ** Commercial Usage
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- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 3.0 as published by the Free
- ** Software Foundation and appearing in the file LICENSE.GPL included in
- ** the packaging of this file. Please review the following information
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- ****************************************************************************/
- #ifndef QPAIR_H
- #define QPAIR_H
- #include <QtCore/qdatastream.h>
- QT_BEGIN_HEADER
- QT_BEGIN_NAMESPACE
- QT_MODULE(Core)
- template <class T1, class T2>
- struct QPair
- {
- typedef T1 first_type;
- typedef T2 second_type;
- QPair() : first(T1()), second(T2()) {}
- QPair(const T1 &t1, const T2 &t2) : first(t1), second(t2) {}
- QPair<T1, T2> &operator=(const QPair<T1, T2> &other)
- { first = other.first; second = other.second; return *this; }
- T1 first;
- T2 second;
- };
- template <class T1, class T2>
- Q_INLINE_TEMPLATE bool operator==(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
- { return p1.first == p2.first && p1.second == p2.second; }
- template <class T1, class T2>
- Q_INLINE_TEMPLATE bool operator!=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
- { return !(p1 == p2); }
- template <class T1, class T2>
- Q_INLINE_TEMPLATE bool operator<(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
- {
- return p1.first < p2.first || (!(p2.first < p1.first) && p1.second < p2.second);
- }
- template <class T1, class T2>
- Q_INLINE_TEMPLATE bool operator>(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
- {
- return p2 < p1;
- }
- template <class T1, class T2>
- Q_INLINE_TEMPLATE bool operator<=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
- {
- return !(p2 < p1);
- }
- template <class T1, class T2>
- Q_INLINE_TEMPLATE bool operator>=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
- {
- return !(p1 < p2);
- }
- template <class T1, class T2>
- Q_OUTOFLINE_TEMPLATE QPair<T1, T2> qMakePair(const T1 &x, const T2 &y)
- {
- return QPair<T1, T2>(x, y);
- }
- #ifndef QT_NO_DATASTREAM
- template <class T1, class T2>
- inline QDataStream& operator>>(QDataStream& s, QPair<T1, T2>& p)
- {
- s >> p.first >> p.second;
- return s;
- }
- template <class T1, class T2>
- inline QDataStream& operator<<(QDataStream& s, const QPair<T1, T2>& p)
- {
- s << p.first << p.second;
- return s;
- }
- #endif
- QT_END_NAMESPACE
- QT_END_HEADER
- #endif // QPAIR_H