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+// Fig. 6.22: time4.cpp

+// Member-function definitions for Time class.

+

+// include definition of class Time from time4.h

+#include "time4.h"

+

+// constructor function to initialize private data;

+// calls member function setTime to set variables;

+// default values are 0 (see class definition)

+Time::Time( int hr, int min, int sec ) 

+{

+   setTime( hr, min, sec ); 

+

+} // end Time constructor

+

+// set values of hour, minute and second

+void Time::setTime( int h, int m, int s )

+{

+   hour = ( h >= 0 && h < 24 ) ? h : 0;

+   minute = ( m >= 0 && m < 60 ) ? m : 0;

+   second = ( s >= 0 && s < 60 ) ? s : 0;

+

+} // end function setTime

+

+// return hour value

+int Time::getHour() 

+{ 

+   return hour; 

+

+} // end function getHour

+

+// POOR PROGRAMMING PRACTICE:

+// Returning a reference to a private data member.

+int &Time::badSetHour( int hh )

+{

+   hour = ( hh >= 0 && hh < 24 ) ? hh : 0;

+

+   return hour;  // DANGEROUS reference return

+

+} // end function badSetHour

+

+/**************************************************************************

+ * (C) Copyright 1992-2002 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.                     *

+ *************************************************************************/