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? / basic-program-code-09-Ex9-09-Ex9-09.c

  // Ex9_09.cpp
  // Using a reference to call a virtual function
  include <iostream>
  include <GlassBox.h>                  // For CBox and CGlassBox
  using std::cout;
  using std::endl;
  void Output(const CBox& aBox);         // Prototype of function
  int main()
    CBox myBox(2.0, 3.0, 4.0);           // Declare a base box
    CGlassBox myGlassBox(2.0, 3.0, 4.0); // Declare derived box of same size
    Output(myBox);                  // Output volume of base class object
    Output(myGlassBox);             // Output volume of derived class object
    cout << endl;
    return 0;
  void Output(const CBox& aBox)

(C) Æliens 20/2/2008

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