From: Daniel de Rauglaudre <daniel.de_rauglaudre@inria.fr>
To: DURAK Berke <durak@ufr-info-p7.jussieu.fr>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Accessing the nth element in a stream takes time quadratic in n
Date: Tue, 6 Mar 2001 06:46:55 +0100 [thread overview]
Message-ID: <20010306064655.A3629@verdot.inria.fr> (raw)
In-Reply-To: <200103052250.XAA17502@amertume.ufr-info-p7.jussieu.fr>; from durak@ufr-info-p7.jussieu.fr on Mon, Mar 05, 2001 at 11:50:55PM +0100
Hi,
On Mon, Mar 05, 2001 at 11:50:55PM +0100, DURAK Berke wrote:
> This happens when streams are defined recursively, as in
>
> let rec nat_stream n = [< 'n; nat_stream (n + 1) >]
>
> and the problem holds for streams built of channels or strings, too.
Preprocess by camlp4o (add "-pp camlp4o" among the options of ocamlc or
ocamlopt). The streams and stream parsers in OCaml parser are not
optimized.
--
Daniel de RAUGLAUDRE
daniel.de_rauglaudre@inria.fr
http://cristal.inria.fr/~ddr/
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next prev parent reply other threads:[~2001-03-06 5:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-05 22:50 DURAK Berke
2001-03-06 5:46 ` Daniel de Rauglaudre [this message]
2001-03-06 7:46 ` kahl
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