Fourth Project due: Tuesday May 17th

Final Exam Scheduled for Friday, May 20th, 10:30am-12:30pm

Read D&D, in Chapter 8, pages 546-582

Exercise Due Tuesday, May 10

 Exercise 8.8, Page 600 (see website for string class files)

1. embedded classes -- see figure 7.6-- especially initialization of embedded classes in constructor
2. Operator Overloading

   See the files:
   $CLASSHOME/examples/rational-overload.h
   $CLASSHOME/examples/rational-overload.cc
   $CLASSHOME/examples/rational-overload-driver.cc

   • Operator overloading allows more concise (and clearer) notation when using user defined classes
   • Operators overloaded by writing a function definition using special keyword operator followed by the symbol for the operator being overloaded (for the function name)
   • Overloaded operators may be either member functions or friend functions. If a member function, leftmost operand must be a class object (or reference to a class object).
   • Overloading an operator does not change the fundamental properties of the operator (e.g., number of arguments, precedence).
   • Stream insertion and stream extraction operators (<<, >>) can be overloaded to perform I/O for user defined types. Because the stream itself is the left-most argument, these must be overloaded as friends.