From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <weis@pauillac.inria.fr>
X-Original-To: caml-list@yquem.inria.fr
Delivered-To: caml-list@yquem.inria.fr
Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39])
	by yquem.inria.fr (Postfix) with ESMTP id 2F512BB9C
	for <caml-list@yquem.inria.fr>; Fri, 20 Jan 2006 13:18:40 +0100 (CET)
Received: from pauillac.inria.fr (pauillac.inria.fr [128.93.11.35])
	by concorde.inria.fr (8.13.0/8.13.0) with ESMTP id k0KCId6J028937
	for <caml-list@yquem.inria.fr>; Fri, 20 Jan 2006 13:18:39 +0100
Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id NAA25962 for <caml-list@pauillac.inria.fr>; Fri, 20 Jan 2006 13:18:39 +0100 (MET)
Received: from kaiserslautern1.lmsintl.com (Kaiserslautern1.lms-gmbh.de [213.68.136.230])
	by concorde.inria.fr (8.13.0/8.13.0) with ESMTP id k0KCIcCG028923
	for <caml-list@inria.fr>; Fri, 20 Jan 2006 13:18:39 +0100
Received: by kaiserslautern1.lmsintl.com with Internet Mail Service (5.5.2653.19)
	id <ZWZ654FN>; Fri, 20 Jan 2006 13:18:38 +0100
Message-ID: <26EB47FDD566A7469FC862DAF373792F07D737@kaiserslautern1.lmsintl.com>
From: "Bauer, Christoph" <Christoph.Bauer@lms-gmbh.de>
To: caml-list@inria.fr
Subject: C-Interface: CAMLreturn and failwith
Date: Fri, 20 Jan 2006 13:18:37 +0100
MIME-Version: 1.0
X-Mailer: Internet Mail Service (5.5.2653.19)
Content-Type: text/plain
X-Miltered: at concorde with ID 43D0D51F.003 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)!
X-Miltered: at concorde with ID 43D0D51E.007 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)!
X-Spam: no; 0.00; c-interface:01 camlreturn:01 failwith:01 camlreturn:01 failwith:01 camlprim:01 camlparam:01 camlprim:01 camlparam:01 deutschland:98 int:01 int:01 roots:02 caml:02 caml:02 
X-Spam-Checker-Version: SpamAssassin 3.0.3 (2005-04-27) on yquem.inria.fr
X-Spam-Level: 
X-Spam-Status: No, score=0.1 required=5.0 tests=FORGED_RCVD_HELO 
	autolearn=disabled version=3.0.3

Hi,

a question related to CAMLreturn and failwith in C-Stubcode:

Is this code correct:

#include <fail.h>
...

CAMLprim value prim( value unit ) 
{
   CAMLparam0();
   CAMLlocal( result );
   int error;
   /* allocate result, error has an errorcode */
   if( error ) failwith( "error");
   else CAMLreturn( result );
}

or should it be

CAMLprim value prim( value unit ) 
{
   CAMLparam0();
   CAMLlocal( result );
   int error;
   /* allocate result, error has an errorcode */
   if( error ) {
      caml_local_roots = caml__frame;
      failwith( "error");
   }
   else CAMLreturn( result );
} 

Thanks,

Christoph Bauer
Dipl. Inf.

LMS Deutschland GmbH
Luxemburgerstr. 7
D-67657 Kaiserslautern

T +49 631 303 22 152

mailto:Christoph.Bauer@lms-gmbh.de
http://www.lmsintl.com