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From "Dave Brosius (JIRA)" <j...@apache.org>
Subject [jira] Closed: (DERBY-5036) [patch] fix impossible comparison due to sign extension
Date Thu, 17 Feb 2011 01:43:24 GMT

     [ https://issues.apache.org/jira/browse/DERBY-5036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dave Brosius closed DERBY-5036.
-------------------------------

    Bug behavior facts: [Deviation from standard]

> [patch] fix impossible comparison due to sign extension
> -------------------------------------------------------
>
>                 Key: DERBY-5036
>                 URL: https://issues.apache.org/jira/browse/DERBY-5036
>             Project: Derby
>          Issue Type: Bug
>          Components: Network Server
>    Affects Versions: 10.7.1.1
>            Reporter: Dave Brosius
>            Assignee: Dave Brosius
>            Priority: Minor
>             Fix For: 10.8.0.0
>
>         Attachments: bad_byte_compare.diff
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> code does 
> 	byte b = reader.readByte();
> 	if (b == 0xF1)
> 		database.sendTRGDFTRT = true;
> due to sign extension, this test will never be true.
> fixed

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