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# qpair.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtCore module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QPAIR_H
    00043 #define QPAIR_H
    00044
    00045 #include <QtCore/qdatastream.h>
    00046
    00047 QT_BEGIN_HEADER
    00048
    00049 QT_BEGIN_NAMESPACE
    00050
    00051 QT_MODULE(Core)
    00052
    00053 template <class T1, class T2>
    00054 struct QPair
    00055 {
    00056     typedef T1 first_type;
    00057     typedef T2 second_type;
    00058
    00059     QPair() : first(T1()), second(T2()) {}
    00060     QPair(const T1 &t1, const T2 &t2) : first(t1), second(t2) {}
    00061
    00062     QPair<T1, T2> &operator=(const QPair<T1, T2> &other)
    00063     { first = other.first; second = other.second; return *this; }
    00064
    00065     T1 first;
    00066     T2 second;
    00067 };
    00068
    00069 template <class T1, class T2>
    00070 Q_INLINE_TEMPLATE bool operator==(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
    00071 { return p1.first == p2.first && p1.second == p2.second; }
    00072
    00073 template <class T1, class T2>
    00074 Q_INLINE_TEMPLATE bool operator!=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
    00075 { return !(p1 == p2); }
    00076
    00077 template <class T1, class T2>
    00078 Q_INLINE_TEMPLATE bool operator<(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
    00079 {
    00080     return p1.first < p2.first || (!(p2.first < p1.first) && p1.second < p2.second);
    00081 }
    00082
    00083 template <class T1, class T2>
    00084 Q_INLINE_TEMPLATE bool operator>(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
    00085 {
    00086     return p2 < p1;
    00087 }
    00088
    00089 template <class T1, class T2>
    00090 Q_INLINE_TEMPLATE bool operator<=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
    00091 {
    00092     return !(p2 < p1);
    00093 }
    00094
    00095 template <class T1, class T2>
    00096 Q_INLINE_TEMPLATE bool operator>=(const QPair<T1, T2> &p1, const QPair<T1, T2> &p2)
    00097 {
    00098     return !(p1 < p2);
    00099 }
    00100
    00101 template <class T1, class T2>
    00102 Q_OUTOFLINE_TEMPLATE QPair<T1, T2> qMakePair(const T1 &x, const T2 &y)
    00103 {
    00104     return QPair<T1, T2>(x, y);
    00105 }
    00106
    00107 #ifndef QT_NO_DATASTREAM
    00108 template <class T1, class T2>
    00109 inline QDataStream& operator>>(QDataStream& s, QPair<T1, T2>& p)
    00110 {
    00111     s >> p.first >> p.second;
    00112     return s;
    00113 }
    00114
    00115 template <class T1, class T2>
    00116 inline QDataStream& operator<<(QDataStream& s, const QPair<T1, T2>& p)
    00117 {
    00118     s << p.first << p.second;
    00119     return s;
    00120 }
    00121 #endif
    00122
    00123 QT_END_NAMESPACE
    00124
    00125 QT_END_HEADER
    00126
    00127 #endif // QPAIR_H