#include <iostream>
 
class A
{
public:
	virtual void foo() {}
};
 
class B
{
public:
	virtual void bar() {}
};
 
class C : public A, public B {};
 
int main() {
	C c;
 
	C * pc = &c;
	B * pb = pc;
	A * pa = pc;
 
	std::cout << "a:" << pa << std::endl
	          << "b:" << pb << std::endl
	          << "c:" << pc << std::endl;
 
	std::cout << "c==b:" << (pc == pb) << std::endl;
	std::cout << "c==a:" << (pc == pa) << std::endl;
 
	return 0;
}

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