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qpair.h

This is the verbatim text of the qpair.h include file. It is provided only for illustration; the copyright remains with Trolltech.

/****************************************************************************
**
** Definition of TQPair class
**
**
** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
**
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** 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. Alternatively you may (at your option) use any
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** been publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
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#ifndef TQPAIR_H
#define TQPAIR_H

#ifndef QT_H
#include "qglobal.h"
#include "qdatastream.h"
#endif // QT_H

template <class T1, class T2>
struct TQPair
{
    typedef T1 first_type;
    typedef T2 second_type;

    TQPair()
	: first( T1() ), second( T2() )
    {}
    TQPair( const T1& t1, const T2& t2 )
	: first( t1 ), second( t2 )
    {}

    TQPair<T1, T2>& operator=(const TQPair<T1, T2>& other)
    {
	if (this != &other) {
	    first = other.first;
	    second = other.second;
	}
	return *this;
    }

    T1 first;
    T2 second;
};

template <class T1, class T2>
Q_INLINE_TEMPLATES bool operator==( const TQPair<T1, T2>& x, const TQPair<T1, T2>& y )
{
    return x.first == y.first && x.second == y.second;
}

template <class T1, class T2>
Q_INLINE_TEMPLATES bool operator<( const TQPair<T1, T2>& x, const TQPair<T1, T2>& y )
{
    return x.first < y.first ||
	   ( !( y.first < x.first ) && x.second < y.second );
}

template <class T1, class T2>
Q_INLINE_TEMPLATES TQPair<T1, T2> qMakePair( const T1& x, const T2& y )
{
    return TQPair<T1, T2>( x, y );
}

#ifndef QT_NO_DATASTREAM
template <class T1, class T2>
inline TQDataStream& operator>>( TQDataStream& s, TQPair<T1, T2>& p )
{
    s >> p.first >> p.second;
    return s;
}

template <class T1, class T2>
inline TQDataStream& operator<<( TQDataStream& s, const TQPair<T1, T2>& p )
{
    s << p.first << p.second;
    return s;
}
#endif

#endif