| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
|---|
| 3 | |
|---|
| 4 | /*! |
|---|
| 5 | \class QtPrivate::RefCount |
|---|
| 6 | \inmodule QtCore |
|---|
| 7 | \internal |
|---|
| 8 | |
|---|
| 9 | QRefCount implements atomic ref counting for Qt's shared classes. It behaves very similar |
|---|
| 10 | to QAtomicInt, but ignores negative ref counts. |
|---|
| 11 | |
|---|
| 12 | This can be used to allow to implement e.g. const read-only QStringData objects. QString::shared_null and |
|---|
| 13 | the qs(...) macro make use of this feature. |
|---|
| 14 | */ |
|---|
| 15 | |
|---|
