On Fri, Oct 17, 2014 at 07:24:38AM +0200, Michael Kerrisk (man-pages) wrote: > > diff --git a/man3/pow.3 b/man3/pow.3 > > index d0a2ea8..3d2151a 100644 > > --- a/man3/pow.3 > > +++ b/man3/pow.3 > > @@ -320,6 +320,17 @@ The variant returning > > also conforms to > > SVr4, 4.3BSD, C89. > > .SH BUGS > > +On 64-bits, > > +.\" > > +.\" https://sourceware.org/bugzilla/show_bug.cgi?id=13932 > > +.BR pow () > > +may be more than 10,000 times slower for some inputs than for other nearby > > I plan to change "some" to "some (rare)". Sound okay? The point is not to > worry people that this is a problem that is commonly encountered. (Or is it?) Rare is OK, these points don't occur very frequently. > > +inputs. The inputs that produce such behavior are different for > > +.BR powf (), > > +.BR pow () > > +and > > +.BR powl (). > > + The slow fallback is only taken for pow, not powf or powl. Siddhesh
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