🚀 go-pugleaf

Hi Folks,

     This whole unsigned business has got me thinking about the
portability aspects of a little trick, and I was wondering about
the net.at.large's opinion of it.

     Let's say that I've got an int whose legal range is 0 to 100,
and I want to validate it (say) upon entry to a function.  Is this
a portable way to do it?

	foo(v)
	int v;
	{
		if ( (unsigned int) vu > 100)
			printf("value out of range!\n");

		/* must be valid */

     Note that I am not looking for the aesthetics of this -- it's
a trick that will just confuse somebody -- just whether it is portable
or not.  I know that it works on my machine, which doesn't prove
much at all.

     Thoughts?

     Stephen

-- 
Stephen J Friedl | Software Consultant | Tustin, CA |     +1 714 544-6561
3b2-kind-of-guy  | I speak for me ONLY |   KA8CMY   | uunet!mtndew!friedl
 
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