From: "Franz Raps" <raps AT fh-augsburg DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Pointers to functions.
Date: Sun, 28 Feb 1999 22:26:23 +0100
Organization: Fachhochschule Augsburg, Germany
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To: djgpp AT delorie DOT com
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I'm in the process of writing a (very primitive) scrolling shoot-em-up like
space invaders,
and in designing the core of the sprite moving program, I have chosen to
have every object
call it's update function each frame. All the objects share a common data
type, so I wanted
to use function pointers. The problem is, I've never uesd them before. Just
wanted to know
how to prototype them (if any changes are needed) and how to specify them in
my object_t
structure. I'd also appreciate any help in how I'm supposed to assign
functions to the pointers,
and how to call those functions.

Have a look at The C programming Language
Second Edition
Kernighan and Ritchie

Chapter 5.11 Pointers and Functions
In the german edition it is page 115.
I hope it helps
F. Raps