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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
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** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
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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.
*/
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