- Can a friend function be declared as virtual?
- Both
- None
Explanation:
The correct answer is option (b). The Friend function can not be declared as virtual because it is not a member of the class; thus, it is not in the virtual table.
- Can a friend function access the static members of the class?
- Both
- None
Explanation:
The correct answer is option (a). Friend functions can access static members of the class, just as they can access private and protected non-static members.
- Can a friend function be declared in a namespace?
- Both
- None
Explanation:
The correct answer is option (a). Friend functions can be declared within a namespace, and they can prove to be a friend of those classes which are declared either in the same or in a different namespace.
- Pick the true statements from the following that would justify the correct definition for a friend function?
- Friend functions should be declared inside the class.
- Friend functions should be defined outside of the class.
- The friend functions can be defined both inside and outside of the class.
- Friend functions cannot be defined outside the class.
Explanation:
The correct answer is option (b). Friend functions are declared inside the class but must be defined outside the class.
- Which of the following statement define is a valid way to declare a friend function in multiple classes?
- Declaring the function in each class individually.
- Declaring the function in one class and inheriting it.
- Declaring the function in one class and using the friend keyword in other classes.
- Globally using friend keyword.
Explanation:
The correct answer is option (a). In order to declare a friend function in multiple classes, it must be declared individually in each class using the friend keyword.
- In how many classes can a function be declared as friend function?
- Multiple
- None
Explanation:
Option (c) is the accurate choice. It is permissible for a single friend function to be designated as a friend in numerous classes.
