Difference between friend class and friend member function?

Question

I want to know how the friend class works?. because Even friend member functions can be used to access both regular and the private variables across classes. Then what is a friend class?? can anyone tell me please?

Answer 1

Friend function is a function that is able to access the private and protected members of a class. In contrast, a friend class is a classwhich help in accessing the privatemembers of a class. A friend functionis declared by including its prototype inside the class, antecede it with thekeyword friend.
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