// Fig. 16.1: DivideByZeroException.h// Class DivideByZeroException definition.#include <stdexcept> // stdexcept header file contains runtime_errorusing std::runtime_error; // standard C++ library class runtime_error// DivideByZeroException objects should be thrown by functions// upon detecting division-by-zero exceptionsclass DivideByZeroException : public runtime_error {public:   // constructor specifies default error message   DivideByZeroException::DivideByZeroException()      : runtime_error( "attempted to divide by zero" ) {}}; // end class DivideByZeroException/************************************************************************** * (C) Copyright 1992-2005 by Deitel & Associates, Inc. and               * * Pearson Education, Inc. 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.                     * **************************************************************************/