From Robert.Corbett@Eng.Sun.COM Wed May 7 12:52:32 1997 Received: from venus.Sun.COM (venus.Sun.COM [192.9.25.5]) by dkuug.dk (8.6.12/8.6.12) with ESMTP id MAA03160 for ; Wed, 7 May 1997 12:52:29 +0200 Received: from Eng.Sun.COM ([129.146.1.25]) by venus.Sun.COM (SMI-8.6/mail.byaddr) with SMTP id DAA26442; Wed, 7 May 1997 03:51:52 -0700 Received: from kindra.eng.sun.com by Eng.Sun.COM (SMI-8.6/SMI-5.3) id DAA21779; Wed, 7 May 1997 03:51:50 -0700 Received: from lupa.eng.sun.com by kindra.eng.sun.com (SMI-8.6/SMI-SVR4) id DAA09316; Wed, 7 May 1997 03:51:48 -0700 Received: by lupa.eng.sun.com (SMI-8.6/SMI-SVR4) id DAA13391; Wed, 7 May 1997 03:51:59 -0700 Date: Wed, 7 May 1997 03:51:59 -0700 From: Robert.Corbett@Eng.Sun.COM (Robert Corbett) Message-Id: <199705071051.DAA13391@lupa.eng.sun.com> To: Michael.Metcalf@cern.ch, sc22wg5@dkuug.dk, Michel.Olagnon@ifremer.fr Subject: Re: (SC22WG5.1372) Floating-point arithmetic X-Sun-Charset: US-ASCII The article in question tests for conformance to IEC 559 (the international version of IEEE Std. 754) on a variety of platforms. IEC 559 includes directed rounding modes. IEC 559 includes direct rounding modes specifically to make the implementation of interval arithmetic easier. Be careful what you ask for. If you don't want interval arithmetic, you probably do not want most of what IEC 559 requires either. Sincerely, Robert Corbett