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src/qt/src/tools/qvaluestack.h
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00001 /****************************************************************************
00002 ** $Id: qt/qvaluestack.h   3.3.8   edited Jan 11 14:38 $
00003 **
00004 ** Definition of QValueStack class
00005 **
00006 ** Created : 990925
00007 **
00008 ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
00009 **
00010 ** This file is part of the tools module of the Qt GUI Toolkit.
00011 **
00012 ** This file may be distributed under the terms of the Q Public License
00013 ** as defined by Trolltech ASA of Norway and appearing in the file
00014 ** LICENSE.QPL included in the packaging of this file.
00015 **
00016 ** This file may be distributed and/or modified under the terms of the
00017 ** GNU General Public License version 2 as published by the Free Software
00018 ** Foundation and appearing in the file LICENSE.GPL included in the
00019 ** packaging of this file.
00020 **
00021 ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
00022 ** licenses may use this file in accordance with the Qt Commercial License
00023 ** Agreement provided with the Software.
00024 **
00025 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00026 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00027 **
00028 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
00029 **   information about Qt Commercial License Agreements.
00030 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
00031 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
00032 **
00033 ** Contact info@trolltech.com if any conditions of this licensing are
00034 ** not clear to you.
00035 **
00036 **********************************************************************/
00037 
00038 #ifndef QVALUESTACK_H
00039 #define QVALUESTACK_H
00040 
00041 #ifndef QT_H
00042 #include "qvaluelist.h"
00043 #endif // QT_H
00044 
00045 
00046 template<class T>
00047 class QValueStack : public QValueList<T>
00048 {
00049 public:
00050     QValueStack() {}
00051    ~QValueStack() {}
00052     void  push( const T& d ) { this->append(d); }
00053     T pop()
00054     {
00055         T elem( this->last() );
00056         if ( !this->isEmpty() )
00057             this->remove( this->fromLast() );
00058         return elem;
00059     }
00060     T& top() { return this->last(); }
00061     const T& top() const { return this->last(); }
00062 };
00063 
00064 #endif
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