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WeakConstPointerTo< T > Class Template Reference

A WeakConstPointerTo is similar to a WeakPointerTo, except it keeps a const pointer to the thing, that will be cleared to NULL when the thing deleted. More...

#include "weakPointerTo.h"

Inheritance diagram for WeakConstPointerTo< T >:
WeakPointerToBase< T > WeakPointerToVoid PointerToVoid MemoryBase

Public Types

typedef WeakPointerToBase< T >::To To
 
- Public Types inherited from WeakPointerToBase< T >
typedef T To
 

Public Member Functions

 WeakConstPointerTo (const To *ptr=(const To *) NULL)
 
 WeakConstPointerTo (const PointerTo< T > &copy)
 
 WeakConstPointerTo (const ConstPointerTo< T > &copy)
 
 WeakConstPointerTo (const WeakPointerTo< T > &copy)
 
 WeakConstPointerTo (const WeakConstPointerTo< T > &copy)
 
void clear ()
 
const To * get_orig () const
 Returns the original pointer value, even if the object has since been deleted. More...
 
bool is_null () const
 
 operator const T * () const
 We also have the typecast operator to automatically convert WeakConstPointerTo's to the required kind of actual pointer. More...
 
const To & operator* () const
 
const To * operator-> () const
 
WeakConstPointerTo< T > & operator= (const To *ptr)
 
WeakConstPointerTo< T > & operator= (const PointerTo< T > &copy)
 
WeakConstPointerTo< T > & operator= (const ConstPointerTo< T > &copy)
 
WeakConstPointerTo< T > & operator= (const WeakPointerTo< T > &copy)
 
WeakConstPointerTo< T > & operator= (const WeakConstPointerTo< T > &copy)
 
const To * p () const
 Returns an ordinary pointer instead of a WeakConstPointerTo. More...
 
- Public Member Functions inherited from WeakPointerToBase< T >
void clear ()
 A convenient way to set the PointerTo object to NULL. More...
 
bool operator!= (const To *other) const
 
bool operator!= (To *other) const
 
bool operator!= (const WeakPointerToBase< To > &other) const
 
bool operator!= (const PointerToBase< To > &other) const
 
bool operator< (const To *other) const
 
bool operator< (const WeakPointerToBase< To > &other) const
 
bool operator< (const PointerToBase< To > &other) const
 
bool operator<= (const To *other) const
 
bool operator<= (To *other) const
 
bool operator<= (const WeakPointerToBase< To > &other) const
 
bool operator<= (const PointerToBase< To > &other) const
 
bool operator== (const To *other) const
 
bool operator== (To *other) const
 
bool operator== (const WeakPointerToBase< To > &other) const
 
bool operator== (const PointerToBase< To > &other) const
 
bool operator> (const To *other) const
 
bool operator> (To *other) const
 
bool operator> (const WeakPointerToBase< To > &other) const
 
bool operator> (const PointerToBase< To > &other) const
 
bool operator>= (const To *other) const
 
bool operator>= (To *other) const
 
bool operator>= (const WeakPointerToBase< To > &other) const
 
bool operator>= (const PointerToBase< To > &other) const
 
void output (ostream &out) const
 A handy function to output PointerTo's as a hex pointer followed by a reference count. More...
 
void refresh () const
 Informs the WeakPointerTo object that its pointer is no longer deleted. More...
 
- Public Member Functions inherited from WeakPointerToVoid
WeakPointerCallbackget_callback () const
 Returns the callback that will be made when the pointer is deleted, or NULL if no callback has been set. More...
 
bool is_valid_pointer () const
 Returns true if the pointer is not null and the object has not been deleted. More...
 
void mark_deleted ()
 This is intended only to be called by the WeakPointerList destructor. More...
 
void set_callback (WeakPointerCallback *callback)
 Sets a callback that will be made when the pointer is deleted. More...
 
bool was_deleted () const
 Returns true if the object we are pointing to has been deleted, false otherwise. More...
 
- Public Member Functions inherited from PointerToVoid
size_t get_hash () const
 
bool is_null () const
 Returns true if the PointerTo is a NULL pointer, false otherwise. More...
 
bool operator!= (const PointerToVoid &other) const
 
bool operator< (const void *other) const
 
bool operator< (const PointerToVoid &other) const
 
bool operator== (const PointerToVoid &other) const
 
void swap (PointerToVoid &other) NOEXCEPT
 Swaps the contents of this PointerTo with the other, without touching the reference counts. More...
 

Detailed Description

template<class T>
class WeakConstPointerTo< T >

A WeakConstPointerTo is similar to a WeakPointerTo, except it keeps a const pointer to the thing, that will be cleared to NULL when the thing deleted.

Definition at line 69 of file weakPointerTo.h.

Member Function Documentation

template<class T >
const WeakConstPointerTo< T >::To * WeakConstPointerTo< T >::get_orig ( ) const
inline

Returns the original pointer value, even if the object has since been deleted.

Definition at line 277 of file weakPointerTo.I.

template<class T >
WeakConstPointerTo< T >::operator const T * ( ) const
inline

We also have the typecast operator to automatically convert WeakConstPointerTo's to the required kind of actual pointer.

This introduces ambiguities which the compiler will resolve one way or the other, but we don't care which way it goes because either will be correct.

Definition at line 250 of file weakPointerTo.I.

template<class T >
const WeakConstPointerTo< T >::To * WeakConstPointerTo< T >::p ( ) const
inline

Returns an ordinary pointer instead of a WeakConstPointerTo.

Useful to work around compiler problems, particularly for implicit upcasts.

Definition at line 264 of file weakPointerTo.I.


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