#7504: Magma booleans don't evaluate correctly in boolean contexts
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Reporter: kedlaya | Owner: was
Type: defect | Status: needs_review
Priority: major | Milestone:
Component: interfaces | Keywords: magma, boolean context
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
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Changes (by was):
* status: new => needs_review
* upstream: => N/A
Comment:
In Magma we have:
{{{
> false ne 0;
>> false ne 0;
^
Runtime error in 'ne': Bad argument types
Argument types given: BoolElt, RngIntElt
> 1 ne 0;
true
}}}
I.e., comparing false to 0 is not allowed in Magma. So we need to add
code to __nonzero__ that also tests bools.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7504#comment:4>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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