#12679: rewrite Matrix_modn_sparse and vector_modn_sparse code so that the
modulus
is 64-bit on 64-bit platforms
------------------------------+---------------------------------------------
Reporter: was | Owner: jason, was
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.0
Component: linear algebra | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Right now the matrix modn sparse class uses ints to store entries. The
basic reason is the code
{{{
cdef struct c_vector_modint:
int *entries
}}}
in sage/modules/vector_modn_sparse_h.pxi. This should probably instead
use the unsigned C99 type uint_fast64_t.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12679>
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