Let me get this right, are you saying it's unsafe when it returns an error? Paul
At 00:40 12/09/2007, you 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
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