From: Sven LUTHER <luther@dpt-info.u-strasbg.fr>
To: Jean-Christophe Filliatre <Jean-Christophe.Filliatre@lri.fr>
Cc: David Fox <dsfox@cogsci.ucsd.edu>, caml-list@inria.fr
Subject: Re: [Caml-list] Quick question - accessing variant value from C
Date: Thu, 29 Mar 2001 10:36:19 +0200 [thread overview]
Message-ID: <20010329103619.A23630@lambda.u-strasbg.fr> (raw)
In-Reply-To: <15042.59930.557493.133492@pc803>; from Jean-Christophe.Filliatre@lri.fr on Thu, Mar 29, 2001 at 09:54:02AM +0200
On Thu, Mar 29, 2001 at 09:54:02AM +0200, Jean-Christophe Filliatre wrote:
>
> Hi,
>
> You can use the macros Is_long / Is_block to discriminate between Null
> and Address, since the first one is represented as an integer and the
> second one as a structured block (in the later case, you can then
> access the string with the Field macro).
Additionally, some reading of the "Interfacing C with Objective Caml" chapter
of the ocaml documentation is a must read for this, far more inmportant than
the mlvalues.h file, i think.
Friendly,
Sven Luther
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prev parent reply other threads:[~2001-03-29 8:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-29 5:48 David Fox
2001-03-29 7:54 ` Jean-Christophe Filliatre
2001-03-29 8:36 ` Sven LUTHER [this message]
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