| /**************************************************************************** |
| ** |
| ** Copyright (C) 2015 The Qt Company Ltd. |
| ** Contact: http://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL21$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see http://www.qt.io/terms-conditions. For further |
| ** information use the contact form at http://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 2.1 or version 3 as published by the Free |
| ** Software Foundation and appearing in the file LICENSE.LGPLv21 and |
| ** LICENSE.LGPLv3 included in the packaging of this file. Please review the |
| ** following information to ensure the GNU Lesser General Public License |
| ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and |
| ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
| ** |
| ** As a special exception, The Qt Company gives you certain additional |
| ** rights. These rights are described in The Qt Company LGPL Exception |
| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #ifndef QSTACK_H |
| #define QSTACK_H |
| |
| #include <QtCore/qvector.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| |
| template<class T> |
| class QStack : public QVector<T> |
| { |
| public: |
| inline QStack() {} |
| inline ~QStack() {} |
| inline void swap(QStack<T> &other) { QVector<T>::swap(other); } // prevent QVector<->QStack swaps |
| inline void push(const T &t) { QVector<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_NAMESPACE |
| |
| #endif // QSTACK_H |