#11118: Add a cache for .list() method in FiniteEnumeratedSet
------------------------------+---------------------------------------------
Reporter: hivert | Owner: sage-combinat
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.7
Component: combinatorics | Keywords: list FiniteEnumeratedSet cache
Author: Florent Hivert | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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There are two way to get the list of the elements of a
{{{FiniteEnumeratedSet}}}:
{{{
list(FSet)
FSet.list()
}}}
The first case uses {{{FSet.__iter__}}} which is slow in many practical
case, for example because of deep {{{yield}}} recursion...
After a discussion with Nicolas, We decided the following: In the second
case, we assume that there is a need for speed and therefore we take
chance to cache the list.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11118>
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