In C++, which type of function is mainly used to achieve run-time polymorphism?
Options
- A. Inline function
- B. Virtual function
- C. Friend function
- D. More than one of the above
- E. None of the above
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Quiz Practice:
Correct Answer (Detailed Explanation is Below)
B. Virtual function
Detailed Explanation
Answer: Virtual function
A virtual function allows C++ to select the appropriate overridden function at run time when a base-class pointer or reference refers to a derived-class object.
This mechanism is called run-time polymorphism or dynamic binding.