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https://issues.apache.org/jira/browse/LUCENE-2937?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yonik Seeley updated LUCENE-2937:
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Attachment: LUCENE-2937.patch
Here's a patch - the fix to SmallFloat turned out easier than I thought, and
since we are working with the exponent and mantissa together, doesn't slow down
the code at all (the less-than is just changed to a less-than-or-equals).
I also re-ran TestSmallFloat.testAllFloats() to both verify that SmallFloat
matches the original floatToByte after that was also fixed, and verified that
no positive float maps to byte #0
> small float underflow detection bug
> -----------------------------------
>
> Key: LUCENE-2937
> URL: https://issues.apache.org/jira/browse/LUCENE-2937
> Project: Lucene - Java
> Issue Type: Bug
> Affects Versions: 1.9
> Reporter: Yonik Seeley
> Priority: Minor
> Attachments: LUCENE-2937.patch
>
>
> Underflow detection in small floats has a bug, and can incorrectly result in
> a byte value of 0 for a non-zero float.
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