#14711: Weak references in the coercion graph
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Reporter: jpflori | Owner: davidloeffler
Type: defect | Status: needs_review
Priority: critical | Milestone: sage-6.2
Component: number fields | Resolution:
Keywords: memleak, number | Merged in:
field, QuadraticField | Reviewers: Nils Bruin, Jean-
Authors: Simon King, | Pierre Flori
Travis Scrimshaw, Jean-Pierre | Work issues:
Flori | Commit:
Report Upstream: N/A | ea58b22f0bf2652e7d04b3d55e6217dcb8732cdf
Branch: | Stopgaps:
public/ticket/14711 |
Dependencies: |
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Comment (by jpflori):
Replying to [comment:226 nthiery]:
> Ok, thanks for the explanations!
>
> Hmm, this is not super convincing since this adds some complexity:
Sure but it's hard fixing bugs without modifying code :)
>when should one use _internal_coercion_map_from or coerce_map_from? when
should one do a copy? I guess that will do for now, but if we end up
having to worry about those every so often, we should find some better
approach.
I'd say the answer is simple: just use the non-internal method by default.
Of course this is "unless you know what you're doing"...
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Ticket URL: <http://trac.sagemath.org/ticket/14711#comment:229>
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