#13133: BooleanMonomial.index() SEGFAULT on constant monomials
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Reporter: Bouillaguet |
Owner: malb
Type: defect |
Status: new
Priority: minor |
Milestone: sage-5.1
Component: commutative algebra |
Resolution:
Keywords: | Work
issues:
Report Upstream: Reported upstream. Developers acknowledge bug. |
Reviewers:
Authors: Charles Bouillaguet | Merged
in:
Dependencies: polybori |
Stopgaps:
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Changes (by Bouillaguet):
* upstream: Not yet reported upstream; Will do shortly. => Reported
upstream. Developers acknowledge bug.
Comment:
I expected the bug to also occur with the zero monomial, and there is no
is_constant() method that I could have used. However, the bug does not
occur with zero, because "zero" is not a monomial :
{{{
sage: R(0).lm().parent()
Boolean PolynomialRing in x, y
sage: R(1).lm().parent()
MonomialMonoid of Boolean PolynomialRing in x, y
}}}
I wonder if this behavior is the best possible, but it does make sense.
Patch updated
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13133#comment:2>
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