#16803: Reimplement matrix_integer_dense using FLINT
-------------------------------------+-------------------------------------
Reporter: mmasdeu | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.4
Component: linear algebra | Resolution:
Keywords: flint, matrix | Merged in:
Authors: Marc Masdeu | Reviewers: William Stein
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jdemeyer/ticket/16803 | 0c75c2ba9475a2eb02807387375b88140d1137c3
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Comment (by jdemeyer):
Still needs work because of
{{{
sage -t src/sage/combinat/q_analogues.py
**********************************************************************
File "src/sage/combinat/q_analogues.py", line 200, in
sage.combinat.q_analogues.q_binomial
Failed example:
q_binomial(4,2,matrix([[2,1],[-1,3]]))
Exception raised:
Traceback (most recent call last):
File "/usr/local/src/sage-git/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 480, in _run
self.compile_and_execute(example, compiler, test.globs)
File "/usr/local/src/sage-git/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 843, in compile_and_execute
exec compiled in globs
File "<doctest sage.combinat.q_analogues.q_binomial[14]>", line 1,
in <module>
q_binomial(Integer(4),Integer(2),matrix([[Integer(2),Integer(1)],[-Integer(1),Integer(3)]]))
File "/usr/local/src/sage-git/local/lib/python2.7/site-
packages/sage/combinat/q_analogues.py", line 308, in q_binomial
return numerat/denomin
File "element.pyx", line 2743, in
sage.structure.element.Matrix.__div__
(build/cythonized/sage/structure/element.c:20137)
File "matrix_integer_dense.pyx", line 923, in
sage.matrix.matrix_integer_dense.Matrix_integer_dense._matrix_times_matrix_
(build/cythonized/sage/matrix/matrix_integer_dense.c:11570)
File "c_lib.pyx", line 97, in sage.ext.c_lib.sig_raise_exception
(build/cythonized/sage/ext/c_lib.c:1208)
SignalError: Segmentation fault
**********************************************************************
}}}
Given that this test also fails (not with a segfault though) in the
patchbot, I guess the merging isn't to blame.
Please fix this...
--
Ticket URL: <http://trac.sagemath.org/ticket/16803#comment:46>
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