From owner-freebsd-current@FreeBSD.ORG Thu Aug 4 18:02:36 2005 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1F61216A41F for ; Thu, 4 Aug 2005 18:02:36 +0000 (GMT) (envelope-from stefan@fafoe.narf.at) Received: from viefep11-int.chello.at (viefep11-int.chello.at [213.46.255.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id 3A58C43D45 for ; Thu, 4 Aug 2005 18:02:35 +0000 (GMT) (envelope-from stefan@fafoe.narf.at) Received: from wombat.fafoe.narf.at ([213.47.85.26]) by viefep11-int.chello.at (InterMail vM.6.01.04.04 201-2131-118-104-20050224) with ESMTP id <20050804180232.JVWQ2678.viefep11-int.chello.at@wombat.fafoe.narf.at>; Thu, 4 Aug 2005 20:02:32 +0200 Received: by wombat.fafoe.narf.at (Postfix, from userid 1001) id E53ED15B; Thu, 4 Aug 2005 20:02:31 +0200 (CEST) Date: Thu, 4 Aug 2005 20:02:31 +0200 From: Stefan Farfeleder To: Steve Kargl Message-ID: <20050804180229.GA632@wombat.fafoe.narf.at> Mail-Followup-To: Steve Kargl , freebsd-current@freebsd.org References: <20050804162618.GA96657@troutmask.apl.washington.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050804162618.GA96657@troutmask.apl.washington.edu> User-Agent: Mutt/1.5.9i Cc: freebsd-current@freebsd.org Subject: Re: Number of significand bits in long double? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Aug 2005 18:02:36 -0000 On Thu, Aug 04, 2005 at 09:26:18AM -0700, Steve Kargl wrote: > Can someone confirm or refute that the long double type > has 53 bits in its significand on i386? Which header > file in /usr/include provides this info? The type long double has 64 mantissa bits, however we set the FPU to 53-bit precision to get double computations right. Stefan