On Sat, Jan 1, 2011 at 8:54 AM, Felipe Almeida Lessa <felipe.lessa@gmail.com> wrote:

On Fri, Dec 31, 2010 at 6:43 PM, aditya siram <aditya.siram@gmail.com> wrote:
> -- untested and won't work on an infinite list
> last :: [a] -> a
> last = head . reverse

No definition for last works with infinite lists =).

Unless you make the result nullable, of course.

maybeLast :: [a] -> Maybe a

maybeLast [] = Nothing

maybeLast [x] = Just x

maybeLast (_:xs) = maybeLast xs

Cheers,

--
Felipe.

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