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#include <iostream>
struct A
{
virtual void f()
{
std::cout << "A::f()" << std::endl;
}
virtual void g()
{
std::cout << "A::f()" << std::endl;
}
void non_virtual_function()
{
std::cout << "A::non-virt()" << std::endl;
}
};
struct B : public A
{
void f()
{
std::cout << "B::f()" << std::endl;
}
void g()
{
std::cout << "B::f()" << std::endl;
}
void h()
{
std::cout << "B::f()" << std::endl;
}
};
struct C : public B
{
void f()
{
std::cout << "C::f()" << std::endl;
}
void non_virtual_function()
{
std::cout << "C::non_virtual_function()" << std::endl;
}
};
struct D : public C
{
void f()
{
std::cout << "C::f()" << std::endl;
}
void d()
{
std::cout << "D::h()" << std::endl;
}
};
int main()
{
A objA;
B objB;
C objC;
D objD;
A* ptrA = &objA;
ptrA->f();
ptrA->g();
ptrA->non_virtual_function();
A* ptrB = &objB;
ptrB->f();
ptrB->g();
ptrB->non_virtual_function();
B* ptrC = &objC;
ptrC->f();
ptrC->g();
ptrC->non_virtual_function();
C* ptrD = &objD;
ptrD->f();
ptrD->g();
ptrD->non_virtual_function();
}
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