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https://issues.apache.org/jira/browse/MATH-786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13269943#comment-13269943
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Gilles commented on MATH-786:
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bq. -1000 to this proposal
The proposal is fully backwards-compatible.
The API is just extended (one new constructor).
What's the problem?
> "hashCode" in "Pair" class
> --------------------------
>
> Key: MATH-786
> URL: https://issues.apache.org/jira/browse/MATH-786
> Project: Commons Math
> Issue Type: Improvement
> Affects Versions: 3.0
> Reporter: Gilles
> Assignee: Gilles
> Priority: Trivial
> Fix For: 3.1
>
>
> Since "Pair" is supposed to be an immutable class, couldn't we cache the
> "hashCode" value at construction? That would supposedly make it more
> efficient when used in maps.
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