From: Daniel de Rauglaudre <daniel.de_rauglaudre@inria.fr>
To: Xavier Leroy <Xavier.Leroy@inria.fr>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Lazy.Value
Date: Mon, 28 May 2001 15:07:25 +0200 [thread overview]
Message-ID: <20010528150725.H13297@verdot.inria.fr> (raw)
In-Reply-To: <20010528145313.F19801@pauillac.inria.fr>; from Xavier.Leroy@inria.fr on Mon, May 28, 2001 at 02:53:13PM +0200
> > I may say nonsense, but is it possible to generalize things like:
> > ref (Lazy.Value [])
>
> No, this would be unsound -- like all polymorphic references.
I know, and I knew perfectly your example, but for Lazy, it is
different. The structure of this type is visible only because it is
necessary for the "lazy" statement. Users are not supposed to change
the reference value by hand.
And when the "Value" is obtained, the lazy is no more changed by Lazy.force.
--
Daniel de RAUGLAUDRE
daniel.de_rauglaudre@inria.fr
http://cristal.inria.fr/~ddr/
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next prev parent reply other threads:[~2001-05-28 13:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-28 12:46 Daniel de Rauglaudre
2001-05-28 12:53 ` Xavier Leroy
2001-05-28 13:07 ` Daniel de Rauglaudre [this message]
2001-05-28 13:16 ` Xavier Leroy
2001-05-28 13:43 ` Daniel de Rauglaudre
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