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+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QREFCOUNT_H
+#define QREFCOUNT_H
+
+#include <QtCore/qatomic.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+namespace QtPrivate
+{
+
+class RefCount
+{
+public:
+ inline void ref() {
+ if (atomic >= 0)
+ atomic.ref();
+ }
+
+ inline bool deref() {
+ if (atomic < 0)
+ return true;
+ return atomic.deref();
+ }
+
+ inline bool operator==(int value) const
+ { return atomic.operator ==(value); }
+ inline bool operator!=(int value) const
+ { return atomic.operator !=(value); }
+ inline bool operator!() const
+ { return atomic.operator !(); }
+ inline operator int() const
+ { return atomic.operator int(); }
+ inline RefCount &operator=(int value)
+ { atomic = value; return *this; }
+
+ QBasicAtomicInt atomic;
+};
+
+#define Q_REFCOUNT_INITIALIZER(a) { Q_BASIC_ATOMIC_INITIALIZER(a) }
+
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif