#include <iostream>
using namespace std;
class base
{
public:
virtual void vfunc(void)
{
cout << "This is base's vfunc()." << endl;
}
};
class derived1 : public base
{
public:
void vfunc(void)
{
cout << "This is derived1's vfunc()." << endl;
}
};
class derived2 : public derived1
{
public:
void vfunc(void)
{
cout << "This is derived2's vfunc()." << endl;
}
};
int main(void)
{
base *p, b;
derived1 d1;
derived2 d2;
p = &b; // Point to base class
p->vfunc();
p = &d1; // Point to first derived class
p->vfunc();
p = &d2; // Point to second derived class
p->vfunc();
}
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