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+// Fig. 10.10: fig10_10.cpp
+// Introducing polymorphism, virtual functions and dynamic
+// binding.
+#include <iostream>
+
+using std::cout;
+using std::endl;
+using std::fixed;
+
+#include <iomanip>
+
+using std::setprecision;
+
+#include "point.h" // Point class definition
+#include "circle.h" // Circle class definition
+
+int main()
+{
+ Point point( 30, 50 );
+ Point *pointPtr = 0;
+
+ Circle circle( 120, 89, 2.7 );
+ Circle *circlePtr = 0;
+
+ // set floating-point numeric formatting
+ cout << fixed << setprecision( 2 );
+
+ // output objects point and circle using static binding
+ cout << "Invoking print function on point and circle "
+ << "\nobjects with static binding "
+ << "\n\nPoint: ";
+ point.print(); // static binding
+ cout << "\nCircle: ";
+ circle.print(); // static binding
+
+ // output objects point and circle using dynamic binding
+ cout << "\n\nInvoking print function on point and circle "
+ << "\nobjects with dynamic binding";
+
+ // aim base-class pointer at base-class object and print
+ pointPtr = &point;
+ cout << "\n\nCalling virtual function print with base-class"
+ << "\npointer to base-class object"
+ << "\ninvokes base-class print function:\n";
+ pointPtr->print();
+
+ // aim derived-class pointer at derived-class
+ // object and print
+ circlePtr = &circle;
+ cout << "\n\nCalling virtual function print with "
+ << "\nderived-class pointer to derived-class object "
+ << "\ninvokes derived-class print function:\n";
+ circlePtr->print();
+
+ // aim base-class pointer at derived-class object and print
+ pointPtr = &circle;
+ cout << "\n\nCalling virtual function print with base-class"
+ << "\npointer to derived-class object "
+ << "\ninvokes derived-class print function:\n";
+ pointPtr->print(); // polymorphism: invokes circle's print
+ cout << endl;
+
+ 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. *
+ *************************************************************************/ \ No newline at end of file