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Re: incorrect result from cos on non-x86 platform
On Fri, Jan 17, 2003 at 08:11:58AM +1100, Paul Mackerras wrote:
> Ulrich Drepper writes:
>
> > Philip Blundell wrote:
> > > A Debian user reported that running this program on PowerPC or ARM,
> > > using glibc 2.3.1:
> >
> > I hope you verified that.
> >
> > I passed the report on to the authors since I cannot see anything
> > oviously wrong.
>
> It happens on my powerbook (PowerPC laptop) running Debian.
> Interestingly, it only happens for the one particular binary value:
> 0x3fe9a92cdb25a2e1, which is 0.80190127184058835. Other binary values
> in the vicinity don't provoke the bug.
Have you checked both sin and cos are really called in the binary
(ie. if it is e.g. not some gcc bug)?
Jakub