I have two classes, A and B.  A is B's superclass.  I want to store a pointer
to a member function in B within A.  How do I dereference the function
pointer in A without knowing B's type.

ie .
Everything is Public:

class A {
 void (A::*memberfn)(int);
 virtual void working(int);
};


class B : public A {
 void working(int);
};

B::B()   or  A::A()
{     {
memberfn=working;   memberfn=working;
}     }


When I call working, it's the one defined by class A.

In my code I have more than class B being derived from A.  And memberfn is
an array - (void (A::*memberfn[10](int);

Can anyone help?  I tried loosing the first A giving -

void (::*memberfn)(int);
But the compiler didn't like that.

I'm currently using gcc 2.3.3, but I didn't get anywhere with AT&T CC V2.

Thanks in advance for any information.

Gareth
__________________________________________________________________
  Gareth Smith   \  Department of Computing, SECAMS,
   gbs@comp.lancs.ac.uk   \  Lancaster University,
               \  Bailrigg, Lancaster, LA1 4YR , U.K.
     FAX:+44 (0)524 381707  \  PHONE:+44 (0)524 65201 Ex3793