itk::WeakPointer< TObjectType > Class Template Reference

Implements a weak reference to an object. More...

#include <itkWeakPointer.h>

Inheritance diagram for itk::WeakPointer< TObjectType >:

Public Types
typedef TObjectType	ObjectType

Public Member Functions
	WeakPointer ()
	WeakPointer (const WeakPointer< ObjectType > &p)
	WeakPointer (ObjectType *p)
	~WeakPointer ()
ObjectType *	GetPointer () const
	operator ObjectType * () const
template<typename R >
bool	operator!= (R r) const
ObjectType *	operator-> () const
bool	operator< (const WeakPointer &r) const
bool	operator<= (const WeakPointer &r) const
WeakPointer &	operator= (const WeakPointer &r)
WeakPointer &	operator= (ObjectType *r)
template<typename R >
bool	operator== (R r) const
bool	operator> (const WeakPointer &r) const
bool	operator>= (const WeakPointer &r) const
ObjectType *	Print (std::ostream &os) const

Private Attributes
ObjectType *	m_Pointer

Detailed Description

template<class TObjectType>
class itk::WeakPointer< TObjectType >

Implements a weak reference to an object.

WeakPointer implements a weak reference to an object. A natural interface to the class is defined by operator -> (and *) among others. WeakPointer is really nothing more than a standard pointer. It is used to call attention to the fact that it does not adjust the reference count of an object like SmartPointer does. WeakPointer is used internally to Insight to manage (break) reference counting loops. At some point, an object may keep track of how many objects hold weak references to itself. In all cases, however, an outstanding weak reference will not keep an object from destructing.

Definition at line 43 of file itkWeakPointer.h.

Member Typedef Documentation

template<class TObjectType>

typedef TObjectType itk::WeakPointer< TObjectType >::ObjectType

Extract information from template parameter.

Definition at line 47 of file itkWeakPointer.h.

Constructor & Destructor Documentation

template<class TObjectType>

itk::WeakPointer< TObjectType >::WeakPointer ( )

inline

Constructor.

Definition at line 50 of file itkWeakPointer.h.

template<class TObjectType>

itk::WeakPointer< TObjectType >::WeakPointer ( const WeakPointer< ObjectType > &  p )

inline

Copy constructor.

Definition at line 54 of file itkWeakPointer.h.

template<class TObjectType>

itk::WeakPointer< TObjectType >::WeakPointer ( ObjectType *  p )

inline

Constructor to pointer p.

Definition at line 57 of file itkWeakPointer.h.

template<class TObjectType>

itk::WeakPointer< TObjectType >::~WeakPointer ( )

inline

Destructor.

Definition at line 60 of file itkWeakPointer.h.

Member Function Documentation

template<class TObjectType>

ObjectType* itk::WeakPointer< TObjectType >::GetPointer ( ) const

inline

Access function to pointer.

Definition at line 84 of file itkWeakPointer.h.

Referenced by itk::SmartPointerForwardReference< T >::operator=(), itk::WeakPointer< itk::ProcessObject >::operator=(), and itk::SmartPointerForwardReference< T >::SmartPointerForwardReference().

template<class TObjectType>

itk::WeakPointer< TObjectType >::operator ObjectType * ( ) const

inline

Return pointer to object.

Definition at line 68 of file itkWeakPointer.h.

template<class TObjectType>

template<typename R >

bool itk::WeakPointer< TObjectType >::operator!= ( R  r ) const

inline

Definition at line 78 of file itkWeakPointer.h.

template<class TObjectType>

ObjectType* itk::WeakPointer< TObjectType >::operator-> ( ) const

inline

Overload operator ->.

Definition at line 64 of file itkWeakPointer.h.

template<class TObjectType>

bool itk::WeakPointer< TObjectType >::operator< ( const WeakPointer< TObjectType > &  r ) const

inline

Comparison of pointers. Less than comparison.

Definition at line 88 of file itkWeakPointer.h.

template<class TObjectType>

bool itk::WeakPointer< TObjectType >::operator<= ( const WeakPointer< TObjectType > &  r ) const

inline

Comparison of pointers. Less than or equal to comparison.

Definition at line 96 of file itkWeakPointer.h.

template<class TObjectType>

WeakPointer& itk::WeakPointer< TObjectType >::operator= ( const WeakPointer< TObjectType > &  r )

inline

Overload operator assignment.

Definition at line 104 of file itkWeakPointer.h.

template<class TObjectType>

WeakPointer& itk::WeakPointer< TObjectType >::operator= ( ObjectType *  r )

inline

Overload operator assignment.

Definition at line 108 of file itkWeakPointer.h.

template<class TObjectType>

template<typename R >

bool itk::WeakPointer< TObjectType >::operator== ( R  r ) const

inline

Template comparison operators.

Definition at line 73 of file itkWeakPointer.h.

template<class TObjectType>

bool itk::WeakPointer< TObjectType >::operator> ( const WeakPointer< TObjectType > &  r ) const

inline

Comparison of pointers. Greater than comparison.

Definition at line 92 of file itkWeakPointer.h.

template<class TObjectType>

bool itk::WeakPointer< TObjectType >::operator>= ( const WeakPointer< TObjectType > &  r ) const

inline

Comparison of pointers. Greater than or equal to comparison.

Definition at line 100 of file itkWeakPointer.h.

template<class TObjectType>

ObjectType* itk::WeakPointer< TObjectType >::Print ( std::ostream &  os ) const

inline

Function to print object pointed to.

Definition at line 115 of file itkWeakPointer.h.

Referenced by itk::WeakPointer< itk::ProcessObject >::Print().

Member Data Documentation

template<class TObjectType>

ObjectType* itk::WeakPointer< TObjectType >::m_Pointer

private

The pointer to the object referrred to by this smart pointer.

Definition at line 124 of file itkWeakPointer.h.

Referenced by itk::WeakPointer< itk::ProcessObject >::operator<(), itk::WeakPointer< itk::ProcessObject >::operator<=(), itk::WeakPointer< itk::ProcessObject >::operator>(), and itk::WeakPointer< itk::ProcessObject >::operator>=().

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The documentation for this class was generated from the following file:

• itkWeakPointer.h