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Even better, make sure you explain function pointers well.

Some years ago, I ran across and saved off a copy of a some-dozen page reference, in PDF format, titled something along the lines of 'everything you (will) ever need to know about pointers (in C)'. It appeared to be quite well regarded.

But, that laptop was ripped off and the particular file appears not to have made it into backups.

Does this description happen to ring a bell? Any references?

Might it be this?: http://boredzo.org/pointers/

or possibly this (pdf warning): http://home.earthlink.net/~momotuk/pointers.pdf

The second link, I think.

Note that it's also available in an HTML version, at:

http://pweb.netcom.com/~tjensen/ptr/pointers.htm

Even better, I'll explain when and why to use function pointers (finite state automata are a common use case)

I think a more common and more important use is callback functions.

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