On Mon, Jun 15, 2009 at 4:19 PM, Martin
Albrecht<m...@informatik.uni-bremen.de> wrote:
>
>> sage -t -long "devel/sage/sage/libs/singular/singular.pyx"
>> **********************************************************************
>> File
>> "/Users/was/build/sage-4.0.2.rc0/devel/sage/sage/libs/singular/singular.pyx
>>", line 501:
>> sage: P(2^32-1)
>> Expected:
>> -1
>> Got:
>> 4294967295
>
> Is that with my the fix at
>
> http://trac.sagemath.org/sage_trac/attachment/ticket/6051/singular_exp_overflow.patch
>
> or without? It seems (since you are using a 32-bit system) all that needs to
> be done is to fix the doctest.
No, I had not applied your patch. However, I just did, and the above
issue remains.
> On 32-bit we used to switch to a slower implementation (before the fix linked
> above) at 2^30 while on 64-bit only at 2^62. It turns out we always have to
> switch at 2^30 since Singular seems to be using an int somewhere. It should
> return 4294967295 on both 32-bit and 64-bit as far as I can see.
Speaking of Singular, I'm at MEGA right now and Wolfram Decker (I
guess) gave everybody a big flier that says (among other things):
"The Singular team would like to open the development process of
Singular to its users and encourage *you* to participate. So if you
would like to
*Learn* Singular,
*Contribute* to the library,
*Implement* new stuff,
..."
then come to our meeting Wednesday, June 17, 3 p.m.:
* license of Singular clarified
* libsingular
* trac, support lists,
* more frequent releases
* nightly builds
* better debug and profiling support
* on the way to singular 4.0: C++ wrapper classes for all major
singular types, developer level source code docs, Singular as a
library.
* 1 hour: your wishlist and discussion
Sounds good to me! You writing libsingular seems to have really got
some people really excited.
-- William
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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