fig08_12.cpp

《c＋＋大学教程》源码

// Fig. 8.12: fig08_12.cpp
// Date class test program.
#include <iostream>

using std::cout;
using std::endl;

#include "date1.h"  // Date class definition

int main()
{
   Date d1;  // defaults to January 1, 1900
   Date d2( 12, 27, 1992 );
   Date d3( 0, 99, 8045 );  // invalid date

   cout << "d1 is " << d1 << "\nd2 is " << d2
        << "\nd3 is " << d3;

   cout << "\n\nd2 += 7 is " << ( d2 += 7 );

   d3.setDate( 2, 28, 1992 );
   cout << "\n\n  d3 is " << d3;
   cout << "\n++d3 is " << ++d3;

   Date d4( 7, 13, 2002 );

   cout << "\n\nTesting the preincrement operator:\n"
        << "  d4 is " << d4 << '\n';
   cout << "++d4 is " << ++d4 << '\n';
   cout << "  d4 is " << d4;

   cout << "\n\nTesting the postincrement operator:\n"
        << "  d4 is " << d4 << '\n';
   cout << "d4++ is " << d4++ << '\n';
   cout << "  d4 is " << d4 << 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.                     *
 *************************************************************************/