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Posted to dev@commons.apache.org by "Hiroshi Ikeda (JIRA)" <ji...@apache.org> on 2007/04/17 03:10:15 UTC
[jira] Updated: (IO-117) EndianUtils.readSwappedUnsignedInteger()
may return a negative number
[ https://issues.apache.org/jira/browse/IO-117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hiroshi Ikeda updated IO-117:
-----------------------------
Attachment: EndianUtilsTest.java
Here simple test case.
> EndianUtils.readSwappedUnsignedInteger() may return a negative number
> ---------------------------------------------------------------------
>
> Key: IO-117
> URL: https://issues.apache.org/jira/browse/IO-117
> Project: Commons IO
> Issue Type: Bug
> Affects Versions: 1.3.1
> Reporter: Hiroshi Ikeda
> Attachments: EndianUtilsTest.java
>
>
> Methods about reading unsigned-integer in class EndianUtils may return a negative number, due to casting int to long.
> Calculations with operator & etc. are under integer in these methods so its results are integer,
> then implicit casting the results to long keeps its positive/negative sign.
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