#19290: MatroidUnion _rank accept any iterator, partition accept empty partition
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Reporter: chaoxu | Owner:
Type: defect | Status: needs_work
Priority: trivial | Milestone: sage-6.9
Component: matroid theory | Resolution:
Keywords: | Merged in:
Authors: Chao Xu | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/chaoxu/matroid_union | 4f501fbc5cdc0958d148bfe98b42a3a571a337e5
Dependencies: | Stopgaps:
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Changes (by Stefan):
* status: needs_review => needs_work
Comment:
See
http://doc.sagemath.org/html/en/reference/matroids/sage/matroids/matroid.html#sage.matroids.matroid.Matroid
for an explanation of what we normally assume about inputs to our
underscored functions. I agree with Rudi in this case, it is the
responsibility of the caller to provide something with set interface to
_rank, not the responsibility of _rank.
In addition, please keep your tickets to one issue per ticket: the
PartitionMatroid fix is fine, but can't go in because of the first issue.
--
Ticket URL: <http://trac.sagemath.org/ticket/19290#comment:4>
Sage <http://www.sagemath.org>
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