QSharedData 類

The QSharedData class is a base class for shared data objects. 更多...

頭: #include <QSharedData>
qmake: QT += core

注意: 此類的所有函數 可重入 .

公共函數

QSharedData ()
QSharedData ( const QSharedData & )

公共變量

QAtomicInt ref

詳細描述

The QSharedData class is a base class for shared data objects.

QSharedData is designed to be used with QSharedDataPointer or QExplicitlySharedDataPointer 以實現自定義 隱式共享 or explicitly shared classes. QSharedData 提供 綫程安全 引用計數。

QSharedDataPointer and QExplicitlySharedDataPointer 瞭解細節。

成員函數文檔編製

QSharedData:: QSharedData ()

構造 QSharedData object with a reference count of 0.

QSharedData:: QSharedData ( const QSharedData & )

構造 QSharedData object with reference count 0. The parameter is ignored.