overloaded address-of operator. How do I know object's adress

Question

Possible Duplicate:
Overloading unary operator &

class A
{
public:
    A* operator&()
    {
        return NULL;
    }
};
int main()
{
    A obj;
    A* ptr=&obj;//ptr=NULL
    //determining obj's address here
}

It is possible to determine address of object of such class?