#4740: avoid creating unneeded homsets when coercing
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Reporter: mabshoff | Owner: robertwb
Type: defect | Status: needs_info
Priority: major | Milestone: sage-5.11
Component: memleak | Resolution:
Keywords: | Merged in:
Authors: Mike Hansen | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Dependencies:
Stopgaps: |
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Comment (by SimonKing):
I didn't notice that `self.coerce_map_from(S)` also has a special case
when `S is self`. However, the result is again not cached.
{{{
#!python
if S is self:
from sage.categories.homset import Hom
return Hom(self, self).identity()
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/4740#comment:20>
Sage <http://www.sagemath.org>
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