};

};

}

> I've got the following code:

> #include <iostream>

> class Base{
> private:
>    virtual void f(int) { std::cout << "f in Base" << std::endl; }
> };

> class Derived : public Base{
> public:
>    virtual void f(int) { std::cout << "f in Derived" << std::endl; }
> };

> int main(void)
> {
>    Base base;
>    Derived derived;

>    Base* p = &derived;
>    p->f(2);

>    return 1;
> }

> In base class f is decleared as private member function, and the
> compiler complains that pointer p couldn't access private member in
> base.

> It's clear that polymorph fails here.

> Why does it happen?