gistfile1.cpp

#include <iostream>

class Base {
	public:
		Base() : next(NULL) {}
		Base * next;
		void frop() {
			std::cout << "base frop" << std::endl;
		}
};

class Special : public Base {
	public:
		void frop() {
			std::cout << "special frop" << std::endl;
		}
};

int main(char ** args) {
	Base b1 = Base();
	Base b2 = Base();
	Special s1 = Special();

	b1.next = &s1;
	s1.next = &b2;

	Base * cur = &b1;
	while(cur) {
		cur->frop();
		cur = cur->next;
	}
}