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Posted to issues@commons.apache.org by "Gilles (JIRA)" <ji...@apache.org> on 2014/01/17 11:39:21 UTC

[jira] [Updated] (MATH-1089) Precision.round() returns different results when provided negative zero as double or float

     [ https://issues.apache.org/jira/browse/MATH-1089?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gilles updated MATH-1089:
-------------------------

    Attachment: MATH-1089.patch

I propose the attached patch; overall it is probably faster, though the absolute speed difference will be marginal in most cases.


> Precision.round() returns different results when provided negative zero as double or float
> ------------------------------------------------------------------------------------------
>
>                 Key: MATH-1089
>                 URL: https://issues.apache.org/jira/browse/MATH-1089
>             Project: Commons Math
>          Issue Type: Bug
>            Reporter: Thomas Neidhart
>             Fix For: 3.3
>
>         Attachments: MATH-1089.patch
>
>
> Precision.round(-0.0d, x) = 0.0
> Precision.round(-0.0f, x) = -0.0
> After discussion on the mailinglist, the result should always be -0.0.



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