From: Xavier Leroy <xavier.leroy@inria.fr>
To: "Yurii A. Rashkovskii" <yrashk@openeas.org>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] CamlIDL question
Date: Sun, 13 Oct 2002 10:48:25 +0200 [thread overview]
Message-ID: <20021013104825.H13771@pauillac.inria.fr> (raw)
In-Reply-To: <20021007140248.GA22632@rashko.ilt.kharkov.ua>; from yrashk@openeas.org on Mon, Oct 07, 2002 at 05:02:48PM +0300
> Is the below trick is possible in CamlIDL?
> I want to wrap C library that uses structs for storing
> pointers to functions
No, CamlIDL doesn't support C function pointers. The reason is that
mapping C functions pointers to Caml functions is easy, but mapping
Caml function closures to C functions is nearly impossible (there is
nowhere to store and pass the environment part of the closure).
However, CamlIDL support COM interfaces, which are basically a subset
of C++ classes. These support two-way conversions between OCaml
objects (i.e. more or less collections of Caml functions) and COM objects
(i.e. more or less collections of C function pointers + instance
variables).
- Xavier Leroy
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next prev parent reply other threads:[~2002-10-13 8:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-07 14:02 Yurii A. Rashkovskii
2002-10-13 8:48 ` Xavier Leroy [this message]
2002-10-13 17:10 ` Dmitry Bely
2002-10-13 23:12 ` Chris Hecker
2005-10-25 22:26 Christian Stork
2005-10-26 5:03 ` [Caml-list] " Igor Pechtchanski
2005-10-26 11:11 ` Christian Stork
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