From owner-freebsd-numerics@freebsd.org Thu Sep 5 23:07:59 2019 Return-Path: Delivered-To: freebsd-numerics@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 95195D6EAC for ; Thu, 5 Sep 2019 23:07:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 46PbvM3VpFz4VRr for ; Thu, 5 Sep 2019 23:07:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 7840BD6EAB; Thu, 5 Sep 2019 23:07:59 +0000 (UTC) Delivered-To: numerics@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 78016D6EAA for ; Thu, 5 Sep 2019 23:07:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46PbvM2dqJz4VRp for ; Thu, 5 Sep 2019 23:07:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 3EAB4B87B for ; Thu, 5 Sep 2019 23:07:59 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id x85N7x09037679 for ; Thu, 5 Sep 2019 23:07:59 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x85N7x4A037678 for numerics@FreeBSD.org; Thu, 5 Sep 2019 23:07:59 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: numerics@FreeBSD.org Subject: [Bug 240295] math(3): Add Complex Arithmetic functions and their hyperbolic counterparts Date: Thu, 05 Sep 2019 23:07:59 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: standards X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: feature, needs-qa, patch, standards X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: kargl@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: numerics@FreeBSD.org X-Bugzilla-Flags: mfc-stable11? mfc-stable12? X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-numerics@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Discussions of high quality implementation of libm functions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Sep 2019 23:07:59 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D240295 Steve Kargl changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kargl@FreeBSD.org --- Comment #2 from Steve Kargl --- Sigh. Here we go again. >From src/lib/msun/src/math_private.h * The C99 standard intends x+I*y to be used for this, but x+I*y is * currently unusable in general since gcc introduces many overflow, * underflow, sign and efficiency bugs by rewriting I*y as * (0.0+I)*(y+0.0*I) and laboriously computing the full complex product. * In particular, I*Inf is corrupted to NaN+I*Inf, and I*-0 is corrupted * to -0.0+I*0.0. >From the llvm bug database https://bugs.llvm.org/show_bug.cgi?id=3D8532 Some of the code in the patch uses I. --=20 You are receiving this mail because: You are the assignee for the bug.=