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https://issues.apache.org/jira/browse/MATH-953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Luc Maisonobe resolved MATH-953.
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Resolution: Fixed
Fix Version/s: (was: 3.1.1)
3.2
Fixed in subversion repository as of r1460587.
Patch applied, and in fact all other use of double.ToLongBits have been
replaced too. I found no cases where we did need the NaN bit patterns to be
collapsed to a canonical representation, so it was safe to do.
Thanks for the report and for the patch.
> 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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