#8360: Add an interface to Jean-Eric Pin's Semigroupe package
---------------------------------------------------------------+------------
Reporter: nthiery | Owner:
nthiery
Type: enhancement | Status:
needs_work
Priority: major | Milestone:
sage-feature
Component: algebra | Keywords:
Semigroupes
Author: Florent Hivert, Jean-Eric Pin Nicolas M. Thiéry | Upstream:
N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by saliola):
There seems to be a problem on a 64bit machine. After installing the spkg,
the following commands will cause Sage to segfault:
{{{
sage: W = CoxeterGroup(["H",4])
sage: S = semigroupe.AutomaticSemigroup(W.semigroup_generators(), W.one(),
category = FiniteCoxeterGroups())
sage: S.cardinality()
------------------------------------------------------------
Unhandled SIGSEGV: A segmentation fault occured in Sage.
...
}}}
The problem seems to be with compiling Semigroupe on a 64bit machine.
After installing the package, the following segfaults:
{{{
karkwa: cd $SAGE_ROOT/local/bin
karkwa: Semigroupe
karkwa: ./Semigroupe
Segmentation fault
karkwa: ./SelfContainedTest
Toto
a | 2 3 1
b | 2 1 3
c | 1 2 1
Segmentation fault
karkwa: ./SemigroupeModuleTest
a | 2 1
b | 1 1
Segmentation fault
}}}
I think that the two test suites (I think they are test suites...) should
be run by the {{{spkg-check}}} script.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8360#comment:5>
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