#16977: remove 32-bit limitations in eclib modular symbols interface
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Reporter: cremona | Owner:
Type: defect | Status: new
Priority: minor | Milestone: sage-6.4
Component: interfaces | Keywords: eclib 32-bit
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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In sage/libs/cremona/newforms.pyx lines 66-70 there is a conversion from
Sage integers to NTL ZZs, as used in eclib, which goes via Python ints.
This causes some problems on 32-bit machines, which few people still use
but which causes doctest problems, in that file and also in
sage/schemes/elliptic_curves/sha_tate where this interface is used.
See #16959 for some discussion on this. It should not be hard to fix, as
this conversion is already implemented in sage/libs/mwrank/mwrank.pyx, but
will need testing on both 32- and 64-bit machines.
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Ticket URL: <http://trac.sagemath.org/ticket/16977>
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