From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id CE1023858D32; Mon, 9 Oct 2023 17:30:42 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CE1023858D32 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1696872642; bh=GcMI/6CMvzRMkqViAof4CX87fwu1YY1GYvvDDiWWeLM=; h=From:To:Subject:Date:In-Reply-To:References:From; b=g/VnpgQiWbu0vV3SIM4dPASgcbNEhDaN3cfMxmoAcXqL7OWCzwZ9HxHfRXUjiaT4l foT6N8+SnK1cwqAjWWBQy87MDcKiO0oi8gcnIo4d8icf11UKfvcOM9xZwuyZ/xK47t 7l9ui0g3eJxmREHiPa2I5A74P8MV5Ph8MSN0ydQg= From: "bernardwidynski at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/111741] gcc long double precision Date: Mon, 09 Oct 2023 17:30:42 +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: bernardwidynski at gmail dot com 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: 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 --- Comment #3 from bernardwidynski at gmail dot com --- Thanks for the quick response. That explains it. On Mon, Oct 9, 2023 at 10:20=E2=80=AFAM pinskia at gcc dot gnu.org < gcc-bugzilla@gcc.gnu.org> wrote: > 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. > > -- > You are receiving this mail because: > You reported the bug.=