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C++ | Virtual Functions | Question 1

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  • Difficulty Level : Medium
  • Last Updated : 28 Jun, 2021

Which of the following is true about virtual functions in C++.
(A) Virtual functions are functions that can be overridden in derived class with the same signature.
(B) Virtual functions enable run-time polymorphism in a inheritance hierarchy.
(C) If a function is ‘virtual’ in the base class, the most-derived class’s implementation of the function is called according to the actual type of the object referred to, regardless of the declared type of the pointer or reference.
In non-virtual functions, the functions are called according to the type of reference or pointer.
(D) All of the above

Answer: (D)

Explanation: See

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