Operator Overloading, Copy Constructor.

• DistanceT:
• 
• Copy constructor
  • Called with a pass by value
  • Pattern

  • TypeT(const TypeT & other)
    

  • Responsible for making a copy when a pass by value is called.
  • We will need this with dynamic memory.
  • The pass by reference is really important, WHY?
• Overloading operators
  • Same as overloading functions

  • operator + (const TypeT & other);
    

  • Just like functions.
• Oververloading the assignment operator.

  • TypeT &  TypeT::operator = (const TypeT & other){
         if (this != &other) {
            CopyData(other);
         }
         return *this;
    }
    

  • We will need this for dynamic memory
  • Check is important.
  • Return is important