08:36 <malte> uhm. is "let rec loop = match ... with ... in" not permitted? i get this compiler error: "This kind of expression is not allowed as right-hand side of `let rec'"

08:44 <malte> a while-loop works however... why is that?

08:54 <Demitar> malte, you're binding a value and not a function most probably.

09:06 <malte> aha.. i need to do "let rec loop () = ..." :)

09:06 <malte> that _is_ the proper way to do it, isnt it?

09:08 <Demitar> Well, a recursive function with only a unit argument looks kind of suspicious to me. ;-) Unless it's an imperative mainloop or some such.

09:09 <malte> yeah, it is :)

09:09 <malte> i suppose i might just as well implement it as a while-loop after all

09:12 <malte> thanks btw ;)

09:13 <Demitar> Well, if the match makes the code clearer you should probably stick to it. But in most cases a while loop is a more appropriate idiom for such things. (I think. :)

09:15 <malte> ok :)

12:34 <Deknos> hi

12:37 <Deknos> i have a little problem. i want to build a function in ocaml, which parameters are an array, an index, and a value. i want, that my function returns the whole (changed with the one index and value) array, but all i can create is a function which returns a unit

12:38 <Deknos> could anyone help me?

12:38 <Deknos> my function now is let (array,index,value) = let neu = Array.copy in neu.(index) <- value;;

12:40 <Deknos> between let and the tuple there is my function name, i forgot

12:40 <Banana> and Array.copy array too.

12:40 <Banana> easy.

12:40 <Banana> you can do something like :

12:41 <Banana> let f (a,i,v) = let neu = Array.copy a in a.(index) <-v; (neu.i.v);;

12:41 <Banana> arf

12:41 <Banana> (neu,i,v);; of course

12:41 <Banana> crap.

12:41 <Banana> it's neu.(index) <- v too.

12:42 <bk_> btw, how long have you been using ocaml, banana ?

12:42 <Banana> when i started university...

12:43 <Banana> which is hum... 5 years ago ?

12:43 <bk_> oic

12:45 <Deknos> thank you Banana

12:45 <Deknos> really :)

12:45 <Banana> nothing.

12:46 <Deknos> for you, but not for me *g*

17:35 <drWorm> i have an existing module that i want to extend with a couple of additional functions. is there any good way to do this, without altering the original module itself? can i use functors or something?

17:37 <Smerdyakov> module NewOne = struct open Old One let f x = x end

17:37 <Smerdyakov> er

17:37 <Smerdyakov> module NewOne = struct open OldOne let f x = x end

17:37 <Smerdyakov> :)

17:37 <drWorm> is that it? cool :)

18:02 <karryall> no, module NewOne = struct include OldOne let f x = ... end

18:03 <Smerdyakov> Ah. It is different in SML.

18:06 <noss> I'm planning to simulate an internet routing protocol involving several nodes. Anyone know if there is any ocaml code to base such a thing on?

18:06 <noss> It is not entirely different from running vhdl simulations.

18:21 <drWorm> yes, include worked fine, thanks karryall

21:39 <JPL-Justin> Greetings all!