On Tue, 2007-09-11 at 16:48 -0700, Don Stewart wrote: > byorgey: > > On 9/11/07, Don Stewart <[EMAIL PROTECTED]> wrote: > > > > byorgey: > > > On 9/11/07, PR Stanley <[EMAIL PROTECTED]> wrote: > > > > > > Hi > > > take 1000 [1..3] still yields [1,2,3] > > > I thought it was supposed to return an error. > > > Any ideas? > > > Thanks, Paul > > > > > > If for some reason you want a version that does return an error in > > that > > > situation, you could do something like the following: > > > > > > take' n _ | (n <= 0) = [] > > > take' n [] | (n > 0) = error "take': list too short" > > > | otherwise = [] > > > take' n (x:xs) = x : take' (n-1) xs > > > > And we'd call it unsafeTake, just like unsafeFromJust and unsafeTail > > :-) > > > > -- Don > > > > Hmm, that's funny, I don't recall ever hearing of those functions... =) > > > > ooo, Don has a shiny new e-mail address! > > > > And a shiny new job in a shiny new city :-)
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