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What is the purpose of using the final keyword with a virtual function? (2 Points) a) To prevent the function from being overridden in derived classes. b) To mark the function as static. c) To mark the function as deprecated. d) To make the function a template.

Question

What is the purpose of using the final keyword with a virtual function?

(2 Points)

a) To prevent the function from being overridden in derived classes.

b) To mark the function as static.

c) To mark the function as deprecated.

d) To make the function a template.

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Solution

The purpose of using the final keyword with a virtual function is:

a) To prevent the function from being overridden in derived classes.

The final keyword in C++ is used to restrict the users from overriding the virtual function in the derived class. This means that if a function is declared as final then it cannot be overridden in any of the inheriting classes. This is useful when you want to maintain the original functionality of a function in all derived classes without any modification.

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