Member Operators
Post-fix operator returns a copy of the current object while pre-fix operator returns a reference

// Cast Operator
class Student {
  int no;
  float grade[NG];
  int ng;
  void set(int, const float*, int);
 public:
  Student();
  Student(int);
  Student(int, const float*, int);
  void display() const;
};
Student::Student(int sn) {
  float g[] = {0.0f};
  set(sn, g, 0);
 }
int main () {
  Student harry(975), nancy;
  harry.display();   // 975:
  nancy=(Student)428;//tempstudentObj
  nancy.display()    // 428:
}