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// Fig. 10.7: fig10_07.cpp
// Attempting to invoke derived-class-only member functions
// through a base-class pointer.
#include "point.h" // Point class definition
#include "circle.h" // Circle class definition
int main()
{
Point *pointPtr = 0;
Circle circle( 120, 89, 2.7 );
// aim base-class pointer at derived-class object
pointPtr = &circle;
// invoke base-class member functions on derived-class
// object through base-class pointer
int x = pointPtr->getX();
int y = pointPtr->getY();
pointPtr->setX( 10 );
pointPtr->setY( 10 );
pointPtr->print();
// attempt to invoke derived-class-only member functions
// on derived-class object through base-class pointer
double radius = pointPtr->getRadius();
pointPtr->setRadius( 33.33 );
double diameter = pointPtr->getDiameter();
double circumference = pointPtr->getCircumference();
double area = pointPtr->getArea();
return 0;
} // end main
/**************************************************************************
* (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice *
* Hall. All Rights Reserved. *
* *
* DISCLAIMER: The authors and publisher of this book have used their *
* best efforts in preparing the book. These efforts include the *
* development, research, and testing of the theories and programs *
* to determine their effectiveness. The authors and publisher make *
* no warranty of any kind, expressed or implied, with regard to these *
* programs or to the documentation contained in these books. The authors *
* and publisher shall not be liable in any event for incidental or *
* consequential damages in connection with, or arising out of, the *
* furnishing, performance, or use of these programs. *
*************************************************************************/
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