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WeakPointerTo is similar to PointerTo, except that it does not actually prevent the referenced pointer from deleting. More...
#include "weakPointerTo.h"
Public Types | |
typedef WeakPointerToBase< T >::To | To |
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typedef T | To |
Public Member Functions | |
WeakPointerTo (To *ptr=(To *) NULL) | |
WeakPointerTo (const PointerTo< T > ©) | |
WeakPointerTo (const WeakPointerTo< T > ©) | |
void | clear () |
To * | get_orig () const |
Returns the original pointer value, even if the object has since been deleted. More... | |
operator T* () const | |
We also have the typecast operator to automatically convert WeakPointerTo's to the required kind of actual pointer. More... | |
To & | operator* () const |
To * | operator-> () const |
WeakPointerTo< T > & | operator= (To *ptr) |
WeakPointerTo< T > & | operator= (const PointerTo< T > ©) |
WeakPointerTo< T > & | operator= (const WeakPointerTo< T > ©) |
To * | p () const |
Returns an ordinary pointer instead of a WeakPointerTo. More... | |
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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... | |
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WeakPointerCallback * | get_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... | |
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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... | |
WeakPointerTo is similar to PointerTo, except that it does not actually prevent the referenced pointer from deleting.
Instead, the referenced pointer is allowed to delete, but if this happens then was_deleted() will return true, and it will be an assertion error to dereference the pointer thereafter.
Definition at line 32 of file weakPointerTo.h.
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inline |
Returns the original pointer value, even if the object has since been deleted.
Definition at line 113 of file weakPointerTo.I.
References WeakPointerToVoid::was_deleted().
Referenced by WeakPointerTo< T >::p().
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inline |
We also have the typecast operator to automatically convert WeakPointerTo'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 86 of file weakPointerTo.I.
References WeakPointerTo< T >::p(), and WeakPointerToVoid::was_deleted().
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inline |
Returns an ordinary pointer instead of a WeakPointerTo.
Useful to work around compiler problems, particularly for implicit upcasts.
Definition at line 100 of file weakPointerTo.I.
References WeakPointerTo< T >::get_orig(), and WeakPointerToVoid::was_deleted().
Referenced by WeakPointerTo< T >::operator T*().