根据我的理解(和经验),简单地创建QSharedPointer<MyClass>(this)的新实例并不是一条路。这个成员函数应该返回,这个封装在QSharedPointer<MyClass>中,而不会出现所有的不良副作用。MyClass;} 但是,当我在上面的示例中运行testSharedThis()时,sharedFromThis()总 浏览3提问于2017-12-
解释“type conversion already registered from type qsharedpointer<qnetworksession> to type qobject*”的含义 这句话表明在Qt框架中,已经存在一个从QSharedPointer<QNetworkSession>到QObject*的类型转换注册。在Qt中,元对象系统(Meta-Object System)允许在运行时进行对象之间的类型转换,但这需要在编译时...
While C++ provides several smart pointer types, one ofthe most commonly used is QSharedPointer from the Qt framework. In this article, we will explore how to create and effectively utilize QSharedPointer in a step-by-step manner. Step 1: Including the Necessary Header Files...
IdPair> ) ), this, SLOT( featureReceivedAnalyzeOneFeature( QVector<QgsWFSFeatureIdPair> ) ) ); downloader.run( false, /* serialize features */ 2 changes: 1 & 1 2 src/providers/wfs/qgswfsproviderh Original file line numberDiff line numberDiff line change @@ -,7 +122,7...
Returns true if this QSharedDataPointer is not equal to other, otherwise returns false. template<typename T > T & QSharedDataPointer< T >::operator* ( ) inline Returns a reference to the object. This method calls detach(). template...
Move assigns fromotherand returns a reference to this object. template<typename T > QExplicitlySharedDataPointer & QExplicitlySharedDataPointer< T >::operator=(T *other) inline Sets the current QExplicitlySharedDataPointer tootherand increments the reference count. The reference count of the old ...