Hello Manuel, On 10/17/2014 03:51 PM, Manuel López-Ibáñez wrote: > On 17 October 2014 09:58, Siddhesh Poyarekar <siddhesh@xxxxxxxxxx> wrote: >>>> +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. > > Updated patch inline: > > diff --git a/man3/pow.3 b/man3/pow.3 > index d0a2ea8..1b05292 100644 > --- a/man3/pow.3 > +++ b/man3/pow.3 > @@ -320,6 +320,18 @@ 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 (rare) inputs than for > other nearby > +inputs. This only affects > +.BR pow (), > +and not > +.BR powf () > +nor > +.BR powl (). > + > In glibc 2.9 and earlier, > .\" > .\" http://sources.redhat.com/bugzilla/show_bug.cgi?id=6776 > > and attached in case gmail messes it up. Thanks for revising the patch. I've applied it. Cheers, Michael -- 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@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
