C++ Programming - Objects and Classes - Discussion

Because constructor is not contained Virtual method table in memory.

What happens if destructor is not virtual?

But how destructor uses virtual? It is not getting.

There is no need to use destructor as virtual because the principle of destructor is to delete the constructor and free the memory allocated by constructor and virtual function should transfer the function call from base class to derive i.e. if want to delete the constructor of both the classes but the can't happen it should be delete only derived class object.

Significance of virtual function is to provide late binding by restricting the early binding. So destructor should be always virtual so respective descended class's destruction execute instead of parent class destructior, when accesed through pointer as a refrence of the oblect.