Latest C++ Aptitude Question SOLUTION: What are virtual classes?

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What are virtual classes?

Asked In C++ (10 years ago)

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Indira Roy  (8 years ago)

A// base class(display())

B C// B and C child class of A

D// D inheriting from B and C
Now when D d// object of d is made and a call to display() method is made C++ compiler gets confused as it does not know whether to call display() from B or C. So if the class A is made virtual then only 1 subobject will be inherited by B and C, so no ambiguity arises

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