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https://issues.apache.org/jira/browse/MATH-778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13480931#comment-13480931
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Sébastien Brisard commented on MATH-778:
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Seems good to me too. Using shift-right operations would result in faster
implementations. I remember having tried that at the time I created this issue,
but it seems to me I met with an issue, I can't remember what...
So for the time being, let's stick with this patch, and once we get some time,
we can look into optimizations.
> Dfp Dfp.multiply(int x) does not comply with the general contract
> FieldElement.multiply(int n)
> ----------------------------------------------------------------------------------------------
>
> Key: MATH-778
> URL: https://issues.apache.org/jira/browse/MATH-778
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 3.0
> Reporter: Sébastien Brisard
> Assignee: Sébastien Brisard
> Fix For: 3.1
>
> Attachments: MATH-778.patch
>
>
> In class {{org.apache.commons.math3.Dfp}}, the method {{multiply(int n)}} is
> limited to {{0 <= n <= 9999}}. This is not consistent with the general
> contract of {{FieldElement.multiply(int n)}}, where there should be no
> limitation on the values of {{n}}.
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