#18838: GLPK backend does not detect unboundedness in simplex-only mode
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Reporter: mkoeppe | Owner:
Type: defect | Status: needs_review
Priority: major | Milestone: sage-6.8
Component: numerical | Resolution:
Keywords: lp | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/yzh/glpk_backend_does_not_detect_unboundedness_in_simplex_only_mode|
e3f4f8706abcc93100dd110533296ea238bf4d13
Dependencies: | Stopgaps:
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Comment (by mkoeppe):
Replying to [comment:7 dimpase]:
> something worries me there:
> {{{
> status = glp_simplex(self.lp, self.smcp)
> status = glp_get_prim_stat(self.lp)
> }}}
> makes no sense to me...
> The ticket proposes to change the 2nd line to
> {{{
> status = glp_get_status(self.lp)
> }}}
> but still...
The code now checks both the result of glp_simplex and of glp_get_status.
Needs review.
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Ticket URL: <http://trac.sagemath.org/ticket/18838#comment:12>
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