Hi

In your definition, you seem to have forgotten the case when your list is empty.
[x] won't bind on [].

Regards,
Nicolas SCHOEMAEKER

(This email was composed from a mobile phone, please excuse any resulting mistakes)

Web, Cloud Computing & WebRTC developer
Haskell Programmer
Artificial Intelligence & Robotics enthusiast

On May 12, 2015, at 11:40 AM, Kim-Ee Yeoh <ky3@atamo.com> wrote:

On Tue, May 12, 2015 at 1:42 PM, Roelof Wobben <r.wobben@home.nl> wrote:

-- | The main entry point.
last' :: [a] -> a
last' [x] = x
last' (x:xs) = last xs

Notice that the last line does no recursion: it invokes the Prelude's definition of last.

-- Kim-Ee
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