CS202 4- ‹#›
nWhen using virtual inheritance, virtual functions can be
used in the same way that we
learned about previously.
nHowever, a class derived
from two or more base classes that
have a virtual base class in common must override all virtual functions declared in the common base class if it is overridden in more than one of its direct base class branches.
nIf virtual functions are not overridden in the derived class, it is impossible to know which of the virtual functions to use. It would be impossible to know which direct base class' virtual function to use! This is
because the virtual function
is accessed from the common base class
pointer pointing to a derived class object.
Virtual Inheritance too