#include <iostream>
//http://wisdom.sakura.ne.jp/programming/cpp/cpp31.html
using namespace std;

class Kitty {
public:
        virtual void paint() { cout << "Kitty on your lap\n"; }
        void paint_novirtual() { cout << "Kitty no virtual\n"; }
} obj1 ;

class Chobits : public Kitty {
public:
        void paint() { cout << "Chobits\n"; }
        void paint_novirtual() { cout << "Chobits no virtual\n"; }
};

class Di_Gi_Gharat : public Chobits {
public:
        void paint() { cout << "Di Gi Gharat\n"; }
        void paint_novirtual() { cout << "Di_Gi_Gharat no virtual\n"; }
} obj3 ;

int main() {
        Chobits obj2;
        Di_Gi_Gharat obj3a;
        Kitty *po1 = &obj1 , *po2 = &obj2 , *po3 = &obj3;

        po1->paint();
        po2->paint();
        po3->paint();
        obj2.paint();
        obj3a.paint();
        cout << "----------------" << endl;
        po1->paint_novirtual();
        po2->paint_novirtual();
        po3->paint_novirtual();
        obj2.paint_novirtual();
        obj3a.paint_novirtual();

        return 0;
}
=====================================================

$ ./a.exe
Kitty on your lap
Chobits
Di Gi Gharat
Chobits
Di Gi Gharat
----------------
Kitty no virtual
Kitty no virtual
Kitty no virtual
Chobits no virtual
Di_Gi_Gharat no virtual