From: Remi VANICAT <vanicat@labri.u-bordeaux.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] lazy lists
Date: Thu, 04 Jul 2002 00:04:58 +0200 [thread overview]
Message-ID: <87ofdocvsl.dlv@wanadoo.fr> (raw)
In-Reply-To: <200207030945.g639jXd17537@orchestra.cs.caltech.edu> (Michael Vanier's message of "Wed, 3 Jul 2002 02:45:33 -0700")
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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next prev parent reply other threads:[~2002-07-03 22:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-03 9:45 Michael Vanier
2002-07-03 22:04 ` Remi VANICAT [this message]
2005-08-25 23:56 Jonathan Roewen
2005-08-26 10:56 ` Marius Nita
2005-08-26 11:04 ` Richard Jones
2005-08-26 11:16 ` Jun Mukai
2007-05-01 14:10 Yitzhak Mandelbaum
2007-05-01 15:47 ` [Caml-list] " Loup Vaillant
2007-05-01 19:43 ` Jon Harrop
2007-05-02 7:16 ` Nicolas Pouillard
2007-05-02 10:03 ` Loup Vaillant
2007-05-02 10:15 ` Daniel de Rauglaudre
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