int main() {
Bird b;
Cat c;
Pet* p[] = { &b, &c, };
for(int i = 0; i < sizeof p / sizeof *p; i++)
cout << p[i]->type() << " je "
<< p[i]->eats()->foodType() << endl;
// Funkcja moze zwrocic dokladny typ:
Cat::CatFood* cf = c.eats();
Bird::BirdFood* bf;
// Funkcja nie moze zwrocic dokladnego typu:
//! bf = b.eats();
// Trzeba rzutowac w dol:
bf = dynamic_cast<Bird::BirdFood*>(b.eats());
} ///:~
int main() {
Bird b;
Cat c;
Pet* p[] = { &b, &c, };
for(int i = 0; i < sizeof p / sizeof *p; i++)
cout << p[i]->type() << " eats "
<< p[i]->eats()->foodType() << endl;
// Can return the exact type:
Cat::CatFood* cf = c.eats();
Bird::BirdFood* bf;
// Cannot return the exact type:
//! bf = b.eats();
// Must downcast:
bf = dynamic_cast<Bird::BirdFood*>(b.eats());
} ///:~