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/****************************************************************************
**
** 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
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**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
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** 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
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** $QT_END_LICENSE$
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****************************************************************************/

/*!
  \class QtPrivate::RefCount
  \inmodule QtCore
  \internal

  QRefCount implements atomic ref counting for Qt's shared classes. It behaves very similar
  to QAtomicInt, but ignores negative ref counts.

  This can be used to allow to implement e.g. const read-only QStringData objects. QString::shared_null and
  the qs(...) macro make use of this feature.
*/