#6870: [with patch, needs review] Bug in binomial
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Reporter: hgranath | Owner: somebody
Type: defect | Status: new
Priority: minor | Milestone: sage-4.1.2
Component: basic arithmetic | Keywords: binomial
Reviewer: Karl-Dieter Crisman | Author: Hakan Granath
Merged: |
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Comment(by mvngu):
Replying to [comment:20 kcrisman]:
> Minh, I tried this again in a branch with no binomial changes, and it is
still there. I am restoring positive review, and suggest that one looks
at #6950 and friends for this.
The doctest failure I got above is due to a 32- vs. 64-bit issue. On a
32-bit system, it would report 217. But on a 64-bit system, it would
report 222. These results are consistent for all the machines I have
tested on. See my doctest reports for Sage 4.1.2.alpha2:
* 32- and 64-bit [http://groups.google.com/group/sage-
devel/browse_thread/thread/ec8e2958f394eb5b Ubuntu]
* 32- and 64-bit [http://groups.google.com/group/sage-
devel/browse_thread/thread/e61bb57a2637ba2e Mandriva]
* 32- and 64-bit [http://groups.google.com/group/sage-
devel/browse_thread/thread/55d756fb80c94780 Debian]
* 32- and 64-bit [http://groups.google.com/group/sage-
devel/browse_thread/thread/ff85e2965dc9e59b Fedora],
[http://groups.google.com/group/sage-
devel/browse_thread/thread/4ddf1b90690d4cfa Red Hat, CentOS]
* 32- and 64-bit [http://groups.google.com/group/sage-
devel/browse_thread/thread/792bb7c3d1f662ef openSUSE]
* 32- and 64-bit [http://groups.google.com/group/sage-
devel/browse_thread/thread/954ecbadeb7676a8 Mac OS X 10.5.8]
In all of the above reports, the doctest in question pass on 64-bit
platforms, but fail on 32-bit platforms. I have attached the patch
`trac_6870-bitness-issue.patch` which takes care of this bitness issue. It
should be applied on top of `trac_6870-final-v2.patch`. If my patch is
good, then everything is ready to be merged.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6870#comment:21>
Sage <http://sagemath.org/>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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