Member function pointer point to method of another object

Question

Is it possible to have a member function pointer of an object point to a method of another object? If so, please give an example.

Answer 1

Is it possible to have a member function pointer of an object point to a method of another object?

Yes.

If so, please give an example.

I'll give you two.

struct A {
 void f() {}
};
struct B {
 void (A::*p)();
};

int main () {
 A a;
 B b;
 b.p = &A::f;
 (a.*b.p)();

 A* pA = &a;
 B* pB = &b;
 (pA->*pB->p)();
}