#7773: Test failures with Fedora 12 on intel i7 860 processor
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Reporter: jsp | Owner: zimmerma
Type: defect | Status: new
Priority: major | Milestone: sage-4.3.4
Component: build | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by zimmerma):
> You should be able to use the impl keyword to GF to get other
implementations.
I wasn't able to find how to use the {{{impl}}} keyword, but with the
following it works:
{{{
----------------------------------------------------------------------
| Sage Version 4.3.3, Release Date: 2010-02-21 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
Loading Sage library. Current Mercurial branch is: 7993
sage: F = sage.rings.finite_field_ntl_gf2e.FiniteField_ntl_gf2e
sage: H = Hom(F(32, 'a'), F(1024, 'b'))
sage: D = H.domain()
sage: C = H.codomain()
sage: f = D.modulus()
sage: g = C['x'](f)
sage: r = g.roots()
sage: r = [r[0]]
sage: print r[0][0]
b^4 + b^3 + b
sage: D.hom(r[0][0], C)
Ring morphism:
From: Finite Field in a of size 2^5
To: Finite Field in b of size 2^10
Defn: a |--> b^4 + b^3 + b
sage: quit
Exiting SAGE (CPU time 0m0.25s, Wall time 0m3.09s).
[zimme...@coing ~]$
}}}
No SegFault occurs with NTL, which shows the problem is linked with
Givaro.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7773#comment:14>
Sage <http://www.sagemath.org>
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