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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9589) Bytes#LexicographicalComparerHolder#UnsafeComparer#compareTo() has dead code
Date Wed, 16 Oct 2013 21:38:47 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13797289#comment-13797289
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Ted Yu commented on HBASE-9589:
-------------------------------

x is assigned at line 1185:
{code}
            int x = (int) diff;
{code}
At line 1177, we have:
{code}
          if (diff != 0) {
{code}

> Bytes#LexicographicalComparerHolder#UnsafeComparer#compareTo() has dead code
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-9589
>                 URL: https://issues.apache.org/jira/browse/HBASE-9589
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Priority: Minor
>
> Starting with line 1177:
> {code}
>           if (diff != 0) {
>             if (!littleEndian) {
>               return lessThanUnsigned(lw, rw) ? -1 : 1;
>             }
>             // Use binary search
>             int n = 0;
>             int y;
>             int x = (int) diff;
>             if (x == 0) {
>               x = (int) (diff >>> 32);
> {code}
> The value of "x" cannot be equal to 0.



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