The following code example is taken from the book
Object-Oriented Programming in C++
by Nicolai M. Josuttis, Wiley, 2002
© Copyright Nicolai M. Josuttis 2002
#include "vehiclehier.hpp"
#include <iostream>
int main()
{
using std::cout;
using std::endl;
CPPBook::Amph a;
// address of a
cout << "&a: " << (void*)&a << "\n" << endl;
// adress of a => as Car and as Boat
cout << "(CPPBook::Car*) &a: "
<< (void*)(CPPBook::Car*)&a << "\n";
cout << "(CPPBook::Boat*) &a: "
<< (void*)(CPPBook::Boat*)&a << "\n\n";
// address of a => as Car => as Vehicle
cout << "(CPPBook::Vehicle*) (CPPBook::Car*) &a: "
<< (void*)(CPPBook::Vehicle*)(CPPBook::Car*)&a << endl;
// address of a => as Boat => as Vehicle
cout << "(CPPBook::Vehicle*) (CPPBook::Boat*) &a: "
<< (void*)(CPPBook::Vehicle*)(CPPBook::Boat*)&a << endl;
}