#18915: Finite field extension fails if modulus is of type int
----------------------------+----------------------------
Reporter: dlucas | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.8
Component: finite rings | Keywords:
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
----------------------------+----------------------------
I noticed the following:
{{{
sage: F = GF(2)
sage: F.extension(int(3), 'a')
Traceback (most recent call last)
...
UndoundLocalError: local variable 'E' referenced before assignment
}}}
and
{{{
sage: F = GF(2 ** 4, 'a')
sage: F.extension(int(3), 'aa')
Traceback (most recent call last)
...
TypeError: polynomial (=3) must be a polynomial.
}}}
while
{{{
sage: F.extension(Integer(3), 'aa')
Finite Field in aa of size 2^12
}}}
works fine.
This is due to the `isinstance` calls which check only if `modulus` is of
type `Integer` on the dedicated check instead of checking for `int` type
as well.
--
Ticket URL: <http://trac.sagemath.org/ticket/18915>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.
