FPtrNuller< T > Struct Template Reference

Template definition for classes that help guarding against dangling pointers. More...

#include <fcleanup.h>

Public Member Functions
	FPtrNuller (T *&_toNull)
	Constructor.
	~FPtrNuller ()
	Destructor. Calls delete[] on the at construction time passed pointer.

Public Attributes
T *&	toNull
	Remembers the pointer that is to be set to NULL during destruction.

Detailed Description

template<class T>
struct Steinberg::FPtrNuller< T >

Template definition for classes that help guarding against dangling pointers.

A stack allocated object of this type automatically resets an at construction time passed pointer to null when it reaches the end of its scope.

Intended usage:

int* pointerToInt = 0;
{
    int i = 1;
    pointerToInt = &i;
    Steinberg::FPtrNuller<int> ptrNuller (pointerToInt);

    // Do something with pointerToInt.

} // No dangling pointer here, pointerToInt is reset to 0 by destructor of ptrNuller.

Constructor & Destructor Documentation

FPtrNuller ( T *&  _toNull )

inline

Constructor.

_toNull is a reference to the pointer that is to be reset to NULL when this FPtrNuller object's destructor is executed.

~FPtrNuller ( )

inline

Destructor. Calls delete[] on the at construction time passed pointer.

Member Data Documentation

T*& toNull

Remembers the pointer that is to be set to NULL during destruction.