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Re: [vox-tech] Loop variants should be integers!
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Re: [vox-tech] Loop variants should be integers!



On Wed, 2010-04-21 at 17:48 -0700, Brian Lavender wrote:
> So, I am switching my loop variants ("i" in this case) to integers. Here
> is convincing evidence. ;-)
> 
> http://archive.eiffel.com/doc/faq/variant.html
> 
> I recently met a guy at SacJUG who lived next door to Bertrand Meyer! He
> said he might be able to convince him to come and speak here in the
> Sacramento Area. Would that be cool or what?!!!
> 
> Of course, if I had used Eiffel for this program, I could have put an
> invariant condition on i, such that it is never less than zero greater
> than the number of elements in the array.
> 
> brian

This requires that they be integers as opposed to floating point
numbers. It doesn't require that they be signed ints (as opposed to
unsigned).

--Ken
(Who's TA'ing a class on this right now.)
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