[Haskell-beginners] Re: Code help requested

[Joe Van Dyk]

On Fri, Jan 15, 2010 at 5:17 PM, Tim Perry <perry2of5 at yahoo.com> wrote:
> Hi Joe,
>
> I think you wanted (length list - 1) where you call do_search.  The version below is my rewrite with guards, this change, and "midVal" which keeps "list !! mid" from being evaluated twice per recursion.  Unfortunately, I have no idea how to work a fold into this.  Good luck!

Ah, I was trying to figure out how to use guards here, but I couldn't
figure out the syntax.  Thanks for the help!

What's the best way to unit test this function?  Quick-check?  What
would that look like?

Joe