rint() bug

Luoqi Chen luoqi at freebsd.org
Wed May 9 19:02:12 UTC 2007

On Wednesday 09 May 2007 07:55:38 -0700 Steve Kargl wrote:
> On Wed, May 09, 2007 at 02:16:32AM -0700, Luoqi Chen wrote:
> > Does anyone know about this particular bug (and have a plan to fix it)?
> > http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4831589
> On i386 and amd64, FreeBSD uses assembly code contributed
> by David Schultz.  On platforms that use fdlibm code, the
> bug was fixed 17 months ago.  cvsweb is a wonderful tool.
> http://www.freebsd.org/cgi/cvsweb.cgi/src/lib/msun/src/s_rint.c

Thanks, Steve. I forgot to check with the CVS, I was looking at 6-R branch, 
which still doesn't have Bruce's fix (I guess I should have posted my 
question to -stable instead). Any time table for a merge?

I looked at the latest msun/amd64, there was no assembly version for rint().
Since C99 is not supported everywhere (4.x systems, e.g.), I still have to
use rint() for portability. Does anyone plan to write a piece of assembly code
for rint() on amd64? Besides the bug, the C version is noticeably slower.


More information about the freebsd-current mailing list