qstack.h

qt-x11-opensource-src-4.1.4.tar.gz源码

/****************************************************************************
**
** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the QtCore module of the Qt Toolkit.
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** License version 2.0 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 to ensure GNU
** General Public Licensing requirements will be met:
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#ifndef QSTACK_H
#define QSTACK_H

#include <QtCore/qvector.h>

QT_BEGIN_HEADER

QT_MODULE(Core)

template<class T>
class QStack : public QVector<T>
{
public:
    inline QStack() {}
    inline ~QStack() {}
    inline void push(const T &t) { append(t); }
    T pop();
    T &top();
    const T &top() const;
};

template<class T>
inline T QStack<T>::pop()
{ Q_ASSERT(!this->isEmpty()); T t = this->data()[this->size() -1];
  this->resize(this->size()-1); return t; }

template<class T>
inline T &QStack<T>::top()
{ Q_ASSERT(!this->isEmpty()); this->detach(); return this->data()[this->size()-1]; }

template<class T>
inline const T &QStack<T>::top() const
{ Q_ASSERT(!this->isEmpty()); return this->data()[this->size()-1]; }

QT_END_HEADER

#endif // QSTACK_H