Subj : Re: Use of  Function pointers
To   : comp.programming
From : Jonathan Bartlett
Date : Fri Jul 15 2005 04:05 pm


> 1) What is the advantage of using function pointers.

It allows switching what function is being called at runtime.  All OO 
languages use this or similar methods for polymorphism.

> 2) What is the difference between an ordinary function call and calling
> a function through function pointer.

None in C syntax.  Passing a pointer is a little ugly, though.

For more on function pointers, you might be interested in my 
DeveloperWorks article:

http://www-128.ibm.com/developerworks/linux/library/l-highfunc.html

Jon
----
Learn to program using Linux assembly language
http://www.cafeshops.com/bartlettpublish.8640017

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