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From "Luc Maisonobe (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (MATH-953) Replaced Double.doubleToLongBits to Double.doubleToRawLongBits where appropriate
Date Sun, 07 Apr 2013 09:21:22 GMT

     [ https://issues.apache.org/jira/browse/MATH-953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Luc Maisonobe closed MATH-953.
------------------------------


Closing issue as version 3.2 has been released on 2013-04-06.
                
> Replaced Double.doubleToLongBits to Double.doubleToRawLongBits where appropriate
> --------------------------------------------------------------------------------
>
>                 Key: MATH-953
>                 URL: https://issues.apache.org/jira/browse/MATH-953
>             Project: Commons Math
>          Issue Type: Improvement
>    Affects Versions: 3.1.1
>            Reporter: Charles Cooper
>            Priority: Minor
>              Labels: optimization, patch
>             Fix For: 3.2
>
>         Attachments: patch
>
>   Original Estimate: 0h
>  Remaining Estimate: 0h
>
> Replaced calls to Double.doubleToLongBits with Double.doubleToRawLongBits in FastMath
where appropriate (i.e. I decided it was safe and would result in a speedup). Some methods
might be significantly faster, like getExponent which I measured to be about 40% faster (do
your own tests!). Patch is attached.

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