#8335: Finite Field lattices
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Reporter: roed | Owner: AlexGhitza
Type: enhancement | Status: needs_info
Priority: major | Milestone: sage-5.8
Component: algebra | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: David Roe | Merged in:
Dependencies: | Stopgaps:
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Comment (by jpflori):
I think I got the infinite loop.
During the initialization of the quotient ring, when trying to create the
"one" element from the quotient ring of integer mod 1 quotiented by
something, it tries to compute a remainder in
polynomial_quotient_ring_element.py: "polynomial %= f" around line 137 but
the mod operation is not defined for the Polynomial_ring_dense class, so
this raises an AttributeError and falls back to the fallback
implementation which tries to compute 0^0 which now tries to create 1
which is looked up for at the position 1 of a table of precomputed value
of length the modulus+1 = 1 which is surely non sense, fails to create a
IntegerrMod_int and raises a TypeError which gets caught in
polynomial_quotient_ring.py around line 430 and loops...
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8335#comment:27>
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