Re: [Caml-list] Streams

["Jonathan Roewen" <jonathan.roewen@gmail.com>]

The Stream module provides exactly this functionality.

With camlp4o, you can use the old parser syntax too.

#load "camlp4o.cma";

let rec enum_from n = [< 'n; enum_from (n + 1) >];;

let first_10 = Stream.npeek 10 (enum_from 1);;

Streams are also lazily evaluated. More complex examples can be had
too, and there is the parser keyword to deconstruct streams as well.
You should be able to find more info in the camlp4 manual at the caml
site.

Jonathan

On 8/10/06, Error404 <error92@tlen.pl> wrote:
> Hi,
>
> I'm looking for some streams related tutorial or any other info.
> By stream i mean something like this (I don't know exact definition):
>
> open Lazy;;
> type 'a stream = Nil | Cons of 'a Lazy.t * 'a stream Lazy.t;;
>
> (* For example stream of 'integers from x' would look like this: *)
>
> let rec intsfrom x =
>  Cons(lazy x,lazy (intsfrom (x+1)));;
>
> If you know any www/book or anything on this kind of streams please mail me (error92@tlen.pl).
> Many thanks.
>
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