Operator Overloading 1

• Member operators may be overloaded for a particular class

class IntArray
{
public:
  IntArray  ( size_t sz = 10 , int ivalue = 0 );
  ...
        int& operator [] (size_t i);       // member operator
  const int& operator [] (size_t i) const; // const version
  ...
private:
  size_t size_;
  int *  data_;
} ;

• Non-member (stand-alone) operators may be overloaded for a particular class

ostream& operator << (ostream& os, const IntArray& a); // stand-alone operator