From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19038 invoked by alias); 11 Apr 2013 17:44:10 -0000 Mailing-List: contact libc-ports-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: libc-ports-owner@sourceware.org Received: (qmail 18929 invoked by uid 89); 11 Apr 2013 17:44:10 -0000 X-Spam-SWARE-Status: No, score=-2.4 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 X-Spam-User: qpsmtpd, 2 recipients Received: from mail-out.m-online.net (HELO mail-out.m-online.net) (212.18.0.10) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with ESMTP; Thu, 11 Apr 2013 17:44:09 +0000 Received: from frontend1.mail.m-online.net (frontend1.mail.intern.m-online.net [192.168.8.180]) by mail-out.m-online.net (Postfix) with ESMTP id 3ZmqNk4NbWz3hhT5; Thu, 11 Apr 2013 19:44:05 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.68]) by mail.m-online.net (Postfix) with ESMTP id 3ZmqNj30qpzbc1M; Thu, 11 Apr 2013 19:44:05 +0200 (CEST) Received: from mail.mnet-online.de ([192.168.8.180]) by localhost (dynscan1.mail.m-online.net [192.168.6.68]) (amavisd-new, port 10024) with ESMTP id 80r2CJgGLQJ2; Thu, 11 Apr 2013 19:44:04 +0200 (CEST) X-Auth-Info: 7bIUxfPoqkoJgQVDtEnLmjjCPIn4asm69nTrGCdk544= Received: from igel.home (ppp-93-104-128-166.dynamic.mnet-online.de [93.104.128.166]) by mail.mnet-online.de (Postfix) with ESMTPA; Thu, 11 Apr 2013 19:44:04 +0200 (CEST) Received: by igel.home (Postfix, from userid 501) id 72F22CA2B4; Thu, 11 Apr 2013 19:44:03 +0200 (CEST) From: Andreas Schwab To: "Carlos O'Donell" Cc: GNU C Library , "libc-ports\@sourceware.org" Subject: Re: Results of cos(pi/2) tests are dependent on error rounding pi/2 to a type. References: <5166B3C5.90206@redhat.com> X-Yow: I'm in LOVE with DON KNOTTS!! Date: Thu, 11 Apr 2013 17:44:00 -0000 In-Reply-To: <5166B3C5.90206@redhat.com> (Carlos O'Donell's message of "Thu, 11 Apr 2013 08:59:49 -0400") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-SW-Source: 2013-04/txt/msg00039.txt.bz2 I'm getting this result on ppc for long double: Failure: Test: cos (pi/2) == 1.082856673921913968223746169860580e-32 Result: is: 1.08285667392191396822e-32 0x1.c1cd129024e088a67cc7p-107 should be: 1.08285667392191396822e-32 0x1.c1cd129024e088a67cc7p-107 difference: 5.71253355584909492648e-62 0x1.78000000000000000000p-204 ulp : 376.0000 max.ulp : 0.0000 Maximal error of `cos' is : 376 ulp accepted: 1 ulp Failure: Test: sincos (pi/2, &sin_res, &cos_res) puts 1.082856673921913968223746169860580e-32 in cos_res Result: is: 1.08285667392191396822e-32 0x1.c1cd129024e088a67cc7p-107 should be: 1.08285667392191396822e-32 0x1.c1cd129024e088a67cc7p-107 difference: 5.71253355584909492648e-62 0x1.78000000000000000000p-204 ulp : 376.0000 max.ulp : 0.0000 Maximal error of `sincos' is : 376 ulp accepted: 1 ulp Filed as PR15359. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."