qsharedpointer.h

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00041 
00042 #ifndef QSHAREDPOINTER_H
00043 #define QSHAREDPOINTER_H
00044 
00045 #include <QtCore/qglobal.h>
00046 #include <QtCore/qatomic.h>
00047 #include <QtCore/qshareddata.h>
00048 
00049 #ifndef Q_QDOC
00050 # if !defined(QT_NO_MEMBER_TEMPLATES)
00051 // QSharedPointer requires member template support
00052 # include <QtCore/qsharedpointer_impl.h>
00053 # endif
00054 #else
00055 
00056 QT_BEGIN_HEADER
00057 
00058 QT_BEGIN_NAMESPACE
00059 
00060 QT_MODULE(Core)
00061 
00062 // These classes are here to fool qdoc into generating a better documentation
00063 
00064 template <class T>
00065 class QSharedPointer
00066 {
00067 public:
00068     // basic accessor functions
00069     T *data() const;
00070     bool isNull() const;
00071     operator bool() const;
00072     bool operator!() const;
00073     T &operator*() const;
00074     T *operator ->() const;
00075 
00076     // constructors
00077     QSharedPointer();
00078     explicit QSharedPointer(T *ptr);
00079     QSharedPointer(T *ptr, Deleter d);
00080     QSharedPointer(const QSharedPointer<T> &other);
00081     QSharedPointer(const QWeakPointer<T> &other);
00082 
00083     ~QSharedPointer() { }
00084 
00085     QSharedPointer<T> &operator=(const QSharedPointer<T> &other);
00086     QSharedPointer<T> &operator=(const QWeakPointer<T> &other);
00087 
00088     QWeakPointer<T> toWeakRef() const;
00089 
00090     void clear();
00091 
00092     // casts:
00093     template <class X> QSharedPointer<X> staticCast() const;
00094     template <class X> QSharedPointer<X> dynamicCast() const;
00095     template <class X> QSharedPointer<X> constCast() const;
00096     template <class X> QSharedPointer<X> objectCast() const;
00097 };
00098 
00099 template <class T>
00100 class QWeakPointer
00101 {
00102 public:
00103     // basic accessor functions
00104     bool isNull() const;
00105     operator bool() const;
00106     bool operator!() const;
00107 
00108     // constructors:
00109     QWeakPointer();
00110     QWeakPointer(const QWeakPointer<T> &other);
00111     QWeakPointer(const QSharedPointer<T> &other);
00112 
00113     ~QWeakPointer();
00114 
00115     QWeakPointer<T> operator=(const QWeakPointer<T> &other);
00116     QWeakPointer<T> operator=(const QSharedPointer<T> &other);
00117 
00118     QWeakPointer(const QObject *other);
00119     QWeakPointer<T> operator=(const QObject *other);
00120 
00121     T *data() const;
00122     void clear();
00123 
00124     QSharedPointer<T> toStrongRef() const;
00125 };
00126 
00127 template<class T, class X> bool operator==(const QSharedPointer<T> &ptr1, const QSharedPointer<X> &ptr2);
00128 template<class T, class X> bool operator!=(const QSharedPointer<T> &ptr1, const QSharedPointer<X> &ptr2);
00129 template<class T, class X> bool operator==(const QSharedPointer<T> &ptr1, const X *ptr2);
00130 template<class T, class X> bool operator!=(const QSharedPointer<T> &ptr1, const X *ptr2);
00131 template<class T, class X> bool operator==(const T *ptr1, const QSharedPointer<X> &ptr2);
00132 template<class T, class X> bool operator!=(const T *ptr1, const QSharedPointer<X> &ptr2);
00133 template<class T, class X> bool operator==(const QWeakPointer<T> &ptr1, const QSharedPointer<X> &ptr2);
00134 template<class T, class X> bool operator!=(const QWeakPointer<T> &ptr1, const QSharedPointer<X> &ptr2);
00135 template<class T, class X> bool operator==(const QSharedPointer<T> &ptr1, const QWeakPointer<X> &ptr2);
00136 template<class T, class X> bool operator!=(const QSharedPointer<T> &ptr1, const QWeakPointer<X> &ptr2);
00137 
00138 template <class X, class T> QSharedPointer<X> qSharedPointerCast(const QSharedPointer<T> &other);
00139 template <class X, class T> QSharedPointer<X> qSharedPointerCast(const QWeakPointer<T> &other);
00140 template <class X, class T> QSharedPointer<X> qSharedPointerDynamicCast(const QSharedPointer<T> &src);
00141 template <class X, class T> QSharedPointer<X> qSharedPointerDynamicCast(const QWeakPointer<T> &src);
00142 template <class X, class T> QSharedPointer<X> qSharedPointerConstCast(const QSharedPointer<T> &src);
00143 template <class X, class T> QSharedPointer<X> qSharedPointerConstCast(const QWeakPointer<T> &src);
00144 template <class X, class T> QSharedPointer<X> qSharedPointerObjectCast(const QSharedPointer<T> &src);
00145 template <class X, class T> QSharedPointer<X> qSharedPointerObjectCast(const QWeakPointer<T> &src);
00146 
00147 template <class X, class T> QWeakPointer<X> qWeakPointerCast(const QWeakPointer<T> &src);
00148 
00149 QT_END_NAMESPACE
00150 
00151 QT_END_HEADER
00152 
00153 #endif // Q_QDOC
00154 
00155 #endif // QSHAREDPOINTER_H