#7795: MPolynomialRing segfaults when getting high exponents
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Reporter: SimonKing | Owner: malb
Type: defect | Status: new
Priority: major | Milestone:
Component: commutative algebra | Keywords: MPolynomialRing_libsingular
segfault with high exponents
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
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In the following example, a segfault occurs. Shouldn't an error be raised
instead?
{{{
sage: F.<a> = FiniteField(3)
sage: P.<T,z> = PolynomialRing(F)
sage: type(P)
<type
'sage.rings.polynomial.multi_polynomial_libsingular.MPolynomialRing_libsingular'>
sage: z^(3^10)
z^59049
sage: z^(3^11)
z^177147
sage: (z^3 + T*z)^(3^4)
z^243 + T^81*z^81
sage: (z^3 + T*z)^(3^7)
z^6561 + T^2187*z^2187
sage: (z^3 + T*z)^(3^10)
z^177147 + T^59049*z^59049
sage: (z^3 + T*z)^(3^15)
/home/king/SAGE/sage-4.3/local/bin/sage-sage: line 206: 20938 Segmentation
fault sage-ipython "$@" -i
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7795>
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