[Haskell-cafe] Re: Non-Overlapping Patterns

Achim Schneider barsoap at web.de
Mon May 5 11:48:56 EDT 2008

Achim Schneider <barsoap at web.de> wrote:

> isZero n = case n of
> 	0 -> True
> 	n -> if n /= 0
> 		then False
> 		else undefined
You can't exchange the order, here, of course, the semantics of this
and a guard-version would differ.

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