From owner-freebsd-alpha  Fri Dec 21  7:18:57 2001
Delivered-To: freebsd-alpha@freebsd.org
Received: from srv1.cosmo-project.de (srv1.cosmo-project.de [213.83.6.106])
	by hub.freebsd.org (Postfix) with ESMTP id 5C3ED37B419
	for <freebsd-alpha@freebsd.org>; Fri, 21 Dec 2001 07:18:53 -0800 (PST)
Received: (from uucp@localhost)
	by srv1.cosmo-project.de (8.11.6/8.11.6) with UUCP id fBLFIoC87160
	for freebsd-alpha@freebsd.org; Fri, 21 Dec 2001 16:18:50 +0100 (CET)
	(envelope-from ticso@cicely9.cicely.de)
Received: from mail.cicely.de (cicely20.cicely.de [10.1.1.22])
	by cicely5.cicely.de (8.12.1/8.12.1) with ESMTP id fBLFJ9tx090613
	for <freebsd-alpha@freebsd.org>; Fri, 21 Dec 2001 16:19:19 +0100 (CET)?g
	(envelope-from ticso@cicely9.cicely.de)
Received: from cicely9.cicely.de (cicely9.cicely.de [10.1.7.11])
	by mail.cicely.de (8.11.0/8.11.0) with ESMTP id fBLFJ8W22822
	for <freebsd-alpha@freebsd.org>; Fri, 21 Dec 2001 16:19:08 +0100 (CET)
Received: (from ticso@localhost)
	by cicely9.cicely.de (8.11.6/8.11.6) id fBLFJ7d00238
	for freebsd-alpha@freebsd.org; Fri, 21 Dec 2001 16:19:07 +0100 (CET)
	(envelope-from ticso)
Date: Fri, 21 Dec 2001 16:19:07 +0100
From: Bernd Walter <ticso@cicely9.cicely.de>
To: freebsd-alpha@freebsd.org
Subject: floating point exception masks?
Message-ID: <20011221151906.GA97006@cicely9.cicely.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.3.24i
X-Operating-System: FreeBSD cicely9.cicely.de 5.0-CURRENT alpha
Sender: owner-freebsd-alpha@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-alpha.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo@FreeBSD.ORG?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo@FreeBSD.ORG?subject=subscribe%20freebsd-alpha>
List-Unsubscribe: <mailto:majordomo@FreeBSD.ORG?subject=unsubscribe%20freebsd-alpha>
X-Loop: FreeBSD.org

Mozilla uses them on FreeBSD, but they are not available on alpha.

Here is a code fragment from
work/mozilla/extensions/transformiix/source/base/Double.cpp:

#include "primitives.h"
#include  <math.h>
#ifdef WIN32
#include <float.h>
#endif
//A trick to handle IEEE floating point exceptions on FreeBSD - E.D.
#ifdef __FreeBSD__
#include <floatingpoint.h>
#endif
#ifndef TX_EXE
#include "prdtoa.h"
#else
#include "stdlib.h"
#include "stdio.h"
#endif

/*
 * Utility class for doubles
 */

//A trick to handle IEEE floating point exceptions on FreeBSD - E.D.
#ifdef __FreeBSD__
fp_except_t allmask = FP_X_INV|FP_X_OFL|FP_X_UFL|FP_X_DZ|FP_X_IMP|FP_X_DNML;
fp_except_t oldmask = fpsetmask(~allmask);
#endif


I have no clue about floating point miracles.
Are these expected implementations?

-- 
B.Walter              COSMO-Project         http://www.cosmo-project.de
ticso@cicely.de         Usergroup           info@cosmo-project.de


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-alpha" in the body of the message