// File: vtest.cpp
//
// Testing virtual functions


#include <iostream>
#include "Box.h"
#include "Cube.h"
#include "ColorCube.h"

using namespace std ;

void foo(Box& boxref) {
   boxref.identify() ;    // identify is VIRTUAL
}

int main() {
   Box b(1.2, 2.4, 2.4) ; 
   Cube c(7.1) ;
   ColorCube cc(2.3, ColorCube::blue) ;

   cout << "Box identify:\n" ;
   foo(b) ;

   cout << "\nCube identify:\n" ;
   foo(c) ;

   cout << "\nColorCube identify:\n" ;
   foo(cc) ;

   Box::report() ;


   cout << "\n\nSome sizes:\n" ;
   cout << "   sizeof(Box) = " << sizeof(Box) << "\n" ;
   cout << "   sizeof(Cube) = " << sizeof(Cube) << "\n" ;
   cout << "   sizeof(ColorCube) = " << sizeof(ColorCube) << "\n" ;

   // Some really bad behavior follows:
  int **ptr1 = (int **) &b ;     // point to b's virtual function pointer
  int **ptr2 = (int **) &cc ;    // point to cc's virtual function pointer
  *ptr2 = *ptr1 ;

  cc.identify() ;
  foo(cc) ;
}