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diff --git a/qtinterface/qt4/Qt/qstack.h b/qtinterface/qt4/Qt/qstack.h
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QSTACK_H
+#define QSTACK_H
+
+#include <QtCore/qvector.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+template<class T>
+class QStack : public QVector<T>
+{
+public:
+    inline QStack() {}
+    inline ~QStack() {}
+    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
+
+QT_END_HEADER
+
+#endif // QSTACK_H