From: Shawn Wagner <shawnw@speakeasy.org>
To: caml-list@inria.fr
Subject: Re: [Caml-list] void/unit in C calls
Date: Fri, 20 Feb 2004 11:41:43 -0800 [thread overview]
Message-ID: <20040220194143.GY27866@speakeasy.org> (raw)
In-Reply-To: <Pine.SOL.4.33.0402201414150.20373-100000@wonka.cs.umd.edu>
On Fri, Feb 20, 2004 at 02:26:05PM -0500, Michael Furr wrote:
>
> I realize this is somewhat of a pedantic question but, what is the proper
> prototype for a C function which has a parameter of type unit?
> ie:
> external foo : unit -> unit = "foo_c"
>
> should foo_c be declared
> void foo_c(void);
> or
> value foo_c(value);
This one.
>
> Would it ever cause a problem on any architecture if one used the wrong
> form?
Yup. I've had problems with the bytecode runtime not liking C functions that
don't return anything when they should be returning a Val_unit.
--
Shawn Wagner
shawnw@speakeasy.org
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next prev parent reply other threads:[~2004-02-20 19:44 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-20 19:26 Michael Furr
2004-02-20 19:41 ` Shawn Wagner [this message]
2004-02-20 19:50 ` Markus Mottl
2004-02-20 20:16 Lars Nilsson
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