Question

What is the syntax of friend function?

(a) friend class1 Class2;

(b) friend class;

(c) friend class

(d) friend class()

The question was asked in an online quiz.

My query is from Friends in section Source Files, Classes and Operator Overloading in C++ of C++

Answer 1

Correct answer is (a) friend class1 Class2;

The best explanation: In option a, the class2 is the friend of class1 and it can access all the private and protected members of class1.