From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 414F33858D1E; Mon, 9 Oct 2023 17:20:13 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 414F33858D1E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1696872013; bh=XHbjpjQnGMU81xtt3lbIiBZ6nd5ijlBcM9gVgRR0AUw=; h=From:To:Subject:Date:In-Reply-To:References:From; b=euMZsXDf2n8jENzWAVyqJUM3PHjz+onJvCLdr/U/r+EApdxLu0vixCaKb/bfoOicB pnDmu4ZMrgcwMH1LN+LMfkJT1iH8rStI+rtDHR1WN/CyqvB+3Qls/Hrfop4n3CLvYj AW5YpVTczBiTaOFQY3xLz2gYTp1FEvuQX/LdwosA= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/111741] gcc long double precision Date: Mon, 09 Oct 2023 17:20:12 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 11.4.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: INVALID X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status resolution Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111741 Andrew Pinski changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #2 from Andrew Pinski --- 80bit is the full precission and that 80bits includes 1 bit sign bit, 64bits for the mantissa and 15bits for the exponent. So anything above 64bits will start to lose precission in the last digits.=