Why should you generally pass an object of the class to a friend function as a reference parameter?
A) If the friend function changes the values of the data members).
B) If the friend function will not change the values of the data members).
C) It is more efficient to pass the object by reference.
D) A and B
E) A and C

Question

Quizplus · Accepted Answer

Passing the object of the class to a friend function as a reference parameter allows for the friend function to modify the data members of the object, which is why option A is correct. Additionally, passing the object by reference is more efficient than passing by value as it requires less memory allocation and copying, which is why option C is also correct. Therefore, the correct answer is E, A and C.

Why Should You Generally Pass an Object of the Class