#8671: FieldElement.quo_rem broken
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Reporter: burcin | Owner: burcin
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.4.2
Component: basic arithmetic | Keywords:
Author: Burcin Erocal | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by burcin):
`_parent` is a cdef'd attribute. At the point this code is used, Cython
doesn't know that `right` is an `Element`, so it generates code to look
for a python attribute `_parent` which fails.
One solution would be to use a type cast by writing
`(<Element>right)._parent`, but we'd have to handle python types like
`int` manually before this. The function `parent()`, which in turn calls
`sage.structure.parent.parent_c` is used exactly for this purpose.
Calling parent_c directly would be faster, but that is not exported in
`sage/structure/parent.pxd`.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8671#comment:3>
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