Garrett Hartshaw wrote:
> On 01/07/2011 02:06 PM, Paul wrote:

>> It simply can't be done as the concept of virtual functions only lives
>> in the world of objects.
>> Please show some basic code. I guarantee you cannot.

> #include <iostream>

> class C1 {
> public:
>     virtual void f() {
>         std::cout << "C1::f" << std::endl;
>     }
> };

> class C2 : public C1 {
> public:
>     virtual void f() {
>         std::cout << "C2::f" << std::endl;
>     }
> };

> int main () {
>   void (C1::*p)() = &C1::f;    //create a pointer to a member function

>   C1 a;                            //create a object of type C1
>   C1 * b;                  //create a object of type pointer to C1
>   b = new C2();                    //allocate a object of type C2

>   (a.*p)();                        //call the member function pointed to
>                                 //by p, with &a as this
>   (b->*p)();                    //call the member function pointed to
>                                 //by p (virtually), with b as this

>   return 0;
> }

> This code prints the following.

> C1::f
> C2::f