From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 884D73858411; Mon, 25 Oct 2021 08:44:55 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 884D73858411 From: "newbie-02 at gmx dot de" To: glibc-bugs@sourceware.org Subject: [Bug math/28472] pow(10, i) accuracy Date: Mon, 25 Oct 2021 08:44:55 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: glibc X-Bugzilla-Component: math X-Bugzilla-Version: 2.31 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: newbie-02 at gmx dot de X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: 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: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: glibc-bugs@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Glibc-bugs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Oct 2021 08:44:55 -0000 https://sourceware.org/bugzilla/show_bug.cgi?id=3D28472 b. changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |newbie-02 at gmx dot de --- Comment #4 from b. --- confirm the error,=20=20 support the desire for improvement,=20=20 powers of ten are important for rounding other values,=20=20 problematic enough that they are exact only from 10^0 ... 10^22 (in doubles= ),=20=20 they do not need additional deviations,=20=20 IMHO IEEE 754 specifies:=20=20 - `as calculated with infinite precision and then rounded to representable precision',=20 and for 'midpoints':=20 - 'to the even' - last bit 0,=20 at least with -O0 gcc should fulfill such ...??? would set to new but lack the power or the role. --=20 You are receiving this mail because: You are on the CC list for the bug.=