www.digitalmars.com         C & C++   DMDScript  

digitalmars.D.learn - The function parameter storage classes: in, final and const

What is the difference between the function parameter classes in final 
and const?
Quoting the specification (http://www.digitalmars.com/d/2.0/function.html):
"The in storage class is equivalent to const scope".
So why do we need both of them? and what is the usage of final?

Jul 25 2008