Multiple choice

A friend function is used to

  1. avoid arguments between classes

  2. allow access to classes whose source code is unavailable

  3. allow one class to access an unrelated class

  4. increase the versatility of an member function
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A friend function is a function that is not a member of a class but is granted access to the private and protected members of that class. This allows it to interact with the class data without being part of the class interface.

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