#17254: Upgrade to Singular-4-0-2
-------------------------------------+-------------------------------------
Reporter: jdemeyer | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.4
Component: packages: | Resolution:
standard | Merged in:
Keywords: | Reviewers:
Authors: jakobkroeker, | Work issues:
jpflori | Commit:
Report Upstream: N/A | e6a30ffadfd625e4baf1def440fab8f9489976bc
Branch: | Stopgaps:
u/jakobkroeker/ticket.17254.squashed.new|
Dependencies: |
-------------------------------------+-------------------------------------
Changes (by {'newvalue': u'jakobkroeker, jpflori', 'oldvalue':
u'jakobkroeker'}):
* commit: bea5a27251a7be04fccb22c0032905218f13a301 =>
e6a30ffadfd625e4baf1def440fab8f9489976bc
* branch: u/jpflori/ticket/17254 =>
u/jakobkroeker/ticket.17254.squashed.new
* author: jakobkroeker => jakobkroeker, jpflori
Comment:
> I still get a bunch of crashes/errors when testing sage/libs/singular,
working on it.
I was able to fix the issue with {{{naSetMap()}}} and {{{nlInit2gmp()}}}
usage in {{{sa2si_NF()}}})
and this reduces the number of segfaults significantly
The example
{{{
sage: x = var('x')
sage: K.<z> = QQ.extension(x^2 + 1)
sage: P.<v,w> = K[]
sage: P._singular_()
sage: P(2/3)
}}}
does not crash any more!
A remaining task is to reuse the plain polynomial ring {{{qqr = QQ['x']}}}
over Q in
{{{sa2si_NF()}}} instead of rebuilding it everytime. (variable name is
irrelevant)
.
.
Next interesting riddle in {{{sa2si_ZZmod()}}}; simple failing example:
{{{
sage: sage: R.<a> = Zmod(5)['a', 'b']
sage: R(1) #crash
}}}
----
New commits:
||[http://git.sagemath.org/sage.git/commit/?id=e6a30ffadfd625e4baf1def440fab8f9489976bc
e6a30ff]||{{{fixed issue with nMapFuncPtr- usage}}}||
--
Ticket URL: <http://trac.sagemath.org/ticket/17254#comment:108>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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