C++ LANGUAGE VIRTUAL FUNCTION

COMPUTER LANGUAGES HTML,C,C++.JAVA,.NET AND MULTIMEDIA basics and programs click home button

C++ LANGUAGE VIRTUAL FUNCTION

Virtual Function 


A virtual function is a function in a base class 
that is declared using the keyword virtual. 
Defining in a base class a virtual function, 
with another version in a derived class, signals 
to the compiler that we don't want static linkage 
for this function. 

What we do want is the selection of the function 
to be called at any given point in the program 
to be based on the kind of object for which it 
is called. This sort of operation is referred to 
as dynamic linkage, or late binding.