Michael Vanier <mvanier@cs.caltech.edu> writes:

> What's the best way to write a lazy list data type in ocaml?  I've been
> playing around with this datatype (from an old mailing list posting):
>
> type 'a stream =
>   Nil
> | Cons of 'a Lazy.t * 'a stream Lazy.t
>
> but I can't figure out how to write a "stream_cons" function.  

you mean :

let stream_cons x y =
  lazy Cons (x, y)


> Also, it
> appears that the Lazy.t data type uses references; why is this?

Because it is the standard way of doing it with a non lazy
language... 
-- 
Rémi Vanicat
vanicat@labri.u-bordeaux.fr
http://dept-info.labri.u-bordeaux.fr/~vanicat
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