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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (LUCENE-2213) Small improvements to ArrayUtil.getNextSize
Date Thu, 21 Jan 2010 11:57:54 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2213?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael McCandless resolved LUCENE-2213.
----------------------------------------

    Resolution: Fixed

> Small improvements to ArrayUtil.getNextSize
> -------------------------------------------
>
>                 Key: LUCENE-2213
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2213
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>            Assignee: Michael McCandless
>            Priority: Minor
>             Fix For: 3.1
>
>         Attachments: LUCENE-2213.patch, LUCENE-2213.patch, LUCENE-2213.patch, LUCENE-2213.patch
>
>
> Spinoff from java-dev thread "Dynamic array reallocation algorithms" started on Jan 12,
2010.
> Here's what I did:
>   * Keep the +3 for small sizes
>   * Added 2nd arg = number of bytes per element.
>   * Round up to 4 or 8 byte boundary (if it's 32 or 64 bit JRE respectively)
>   * Still grow by 1/8th
>   * If 0 is passed in, return 0 back
> I also had to remove some asserts in tests that were checking the actual values returned
by this method -- I don't think we should test that (it's an impl. detail).

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