From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael Kerrisk (man-pages)" Subject: Re: [patch] rint.3: Document that halfway cases are rounded to even. Date: Sun, 22 Mar 2015 20:31:47 +0100 Message-ID: <550F18A3.8090102@gmail.com> References: <1426211007-9986-1-git-send-email-mattst88@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1426211007-9986-1-git-send-email-mattst88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: linux-man-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Matt Turner Cc: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-man@vger.kernel.org On 03/13/2015 02:43 AM, Matt Turner wrote: > Per IEEE-754 rounding rules. > > The round(3) page describes the behavior of rint and nearbyint in the > halfway cases by saying: > > These functions round x to the nearest integer, but round halfway > cases away from zero [...], instead of to the nearest even integer > like rint(3) Thanks, Matt. Applied. Cheers, Michael > Signed-off-by: Matt Turner > --- > man3/rint.3 | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/man3/rint.3 b/man3/rint.3 > index d1bd302..59402a7 100644 > --- a/man3/rint.3 > +++ b/man3/rint.3 > @@ -94,7 +94,9 @@ format, using the current rounding direction (see > .BR fesetround (3)) > and without raising the > .I inexact > -exception. > +exception. When the current rounding direction is to nearest, these > +functions round halfway cases to the even integer in accordance with > +IEEE-754. > .LP > The > .BR rint (), > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html