Re: last item. no output

Matthieu Dubuget
[email protected] [ocaml_beginners] schreef op 18-10-2014
17:44:

Le 18/10/2014 17:38, Roelof Wobben [email protected]
[ocaml_beginners] a

écrit :

> Almost but without the () and your script gives a
error message.

A good exercise would be:

- to correct it

- and to explain what it is supposed to do?

If you want help, please ask more precise questions. The
benefit of it

will be that most of the time, you'll find the answer
yourself while

writing the question.

Before your write your functions, try to write it's type:
it will help a

lot.

Hoping this will help

--

Matthieu Dubuget

Guide d’autodéfense numérique : http://guide.boum.org

oke,

After some trail and error this seems to work :

let rec last list =

match list with

| [] -> None

| [x] -> None

| [x;y]-> Some (x,y)

| hd :: tl -> last tl

;;

I think it not possible to make a output like x y without the ()

Roelof

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Posted by: Roelof Wobben <[email protected]>
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