standards/59797: Implement C99's round[f]() math fucntions

[Steven G. Kargl]

FreeBSD-gnats-submit at FreeBSD.org wrote:
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> It has the internal identification `standards/59797'.
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> http://www.freebsd.org/cgi/query-pr.cgi?pr=59797
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> >Category:       standards
> >Responsible:    freebsd-standards
> >Synopsis:       Implement C99's round[f]() math fucntions
> >Arrival-Date:   Sat Nov 29 10:10:18 PST 2003
> 

I've updated the patch to
1) handle Inf and NaN on input.
2) add a BUGS section to the man page about FP exception handling
3) hopefully comply better with style(9)

-- 
Steve
http://troutmask.apl.washington.edu/~kargl/