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Operator Overloading

• Actual implementation of the operators is somewhat anticlimactic.

  string Iterator::operator*() const
  {
     assert(position != NULL);
     return position->data;
  }
  
  bool Iterator::operator==(Iterator b) const
  {
     return position == b.position;
  }
  

• Note the parameter in the postfix version of the ++ operator.

  void Iterator::operator++(int dummy) const
  {
     assert(position != NULL);
     return = position->next;
  }
  

• Also note that the != operator uses the == operator.

  bool Iterator::operator!=(Iterator b) const
  {
     return !(*this == b); // calls operator ==
  }
  

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