libm/glibc-2.3.6 issue (was - Re: libstdc++ issue?)
kingoipo at gmail.com
Tue Nov 13 10:47:44 PST 2007
On 13/11/2007, juras <juras at kaptah.homelinux.net> wrote:
> Further investigation of the problem led me to the conclusion
> that there must be a bug inside the /lib/libm.so.6, which is
> a part of glibc-2.3.6 (in my system)
> That probably means that I'll have to upgrade glibc. But I am not sure
> if the upgrade - (a rather adventurous task) solves the problem.
> LFS-6.3 contains now the glibc-2.5.1.
> I would like to ask someone who has the libc-2.5.1 installed
> to try to compile, run and send the results of the following simple
Please send the result for me.
> the output of the program is:
> z = (0, 1.5708), ctanh(z) = (nan, inf)
> Which is wrong! (both with gcc-3.3.6 and gcc-4.2.2)
> It should be:
> z = (0, 1.5708), ctanh(z) = (0, inf)
> juras napisał(a):
> FAQ: http://www.linuxfromscratch.org/blfs/faq.html
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I'm not quite sure what you're problem is, but here is the output with
glibc-2.7 and gcc-4.2.2:
oipo [ ~/BLFS/php-5.2.5 ]$ ./tanh
z = (0, 1.5708), ctanh(z) = (0,1.63318e+16)
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