Answer Posted / deepa balamurugan
If the both Base and the Derived class having the same
function then the Base class funtion should be declared as
virtual function. Then the C++ determines which function to
be called at the runtime based on the type of the object
pointed to by the Base pointer rather than the type of the
pointer.
As soon as the compiler reads the keyword virtual ,it will
create the vtable contains the address of the virtual
function inside that class and as soon as vtable is
created ,vptr is initialized to the proper vtable.
| Is This Answer Correct ? | 3 Yes | 0 No |
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