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what is the virtual function overhead, and what is it used
for ? i hope i can get and appropriate answers, thanks a lot....
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Answer Posted / d n gavade
We use Virtual function as Dyanamic Polymorphism.
i.e run time we can passed referencr of derived class into
base class pointer and call the derived class method.Thi
sis its benefit.
But Virtual destructor is also needed when we use virtual
constructor other wise it will cause memory leaks.
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