VarPtr< _Rep > Class Template Reference
Simple counted pointer with variable like const access.
More...
#include <Rep.h>
Inheritance diagram for VarPtr< _Rep >:
List of all members.
Detailed Description
template<typename _Rep>
class VarPtr< _Rep >
Simple counted pointer with variable like const access.
On construction and assignment it behaves like a pointer. I.e. a 'const VarPtr<_Tp>'
is a '_Tp *const'
.
But accessing _Tp (via operator-> or operator*) its constness is propagated to _Tp. I.e. 'VarPtr<_Tp>'
behaves like a '_Tp *'
while a 'const VarPtr<_Tp>'
behaves as a 'const _Tp *'
.
Used in some classes to hide implementation data from the interface:
class Foo
{
class _Implementation;
VarPtr<_Implementation> _impl;
...
All a VarPtr does, is preventing accidential access to nonconst implementation data from const interface methods. If such access is intended is has to be expressed by using a cost_cast.
Constructor & Destructor Documentation
template<typename _Rep> |
VarPtr< _Rep >::VarPtr |
( |
_Rep * |
ptr_r |
) |
[inline, explicit] |
|
Member Function Documentation
template<typename _Rep> |
const _Rep& VarPtr< _Rep >::operator * |
( |
|
) |
const [inline] |
|
template<typename _Rep> |
_Rep& VarPtr< _Rep >::operator * |
( |
|
) |
[inline] |
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template<typename _Rep> |
const _Rep* VarPtr< _Rep >::operator-> |
( |
|
) |
const [inline] |
|
template<typename _Rep> |
_Rep* VarPtr< _Rep >::operator-> |
( |
|
) |
[inline] |
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template<typename _Rep> |
_Rep* VarPtr< _Rep >::ptr |
( |
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) |
const [inline, private] |
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The documentation for this class was generated from the following file:
Generated on Fri Jun 16 15:51:35 2006 for liby2util by
1.4.6