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Date: Thu, 4 Oct 2012 09:40:09 +1100 (NCT)
From: "Joerg Schaible (JIRA)" <jira@apache.org>
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Subject: [jira] [Resolved] (LANG-801) Util for conversion between primitive
 types
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     [ https://issues.apache.org/jira/browse/LANG-801?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joerg Schaible resolved LANG-801.
---------------------------------

    Resolution: Fixed

Added with minor adjustment to naming conventions.
                
> Util for conversion between primitive types
> -------------------------------------------
>
>                 Key: LANG-801
>                 URL: https://issues.apache.org/jira/browse/LANG-801
>             Project: Commons Lang
>          Issue Type: New Feature
>          Components: lang.*
>            Reporter: Sebastien Riou
>            Assignee: Joerg Schaible
>            Priority: Minor
>         Attachments: patch_Conversion.txt
>
>
> A utility class to convert data from one primitive type to another, in the most commonly used fashions (big endian/little endian byte order, lsb first or msb first).
> It also deals with arrays of primitive types and String containing hexadecimal numbers.
> Such conversions are needed when dealing with embedded software or hardware modeling/design.
> I attach a initial version which deals with the "default" encoding, the one which seems the most natural on the JVM: little endian byte ordering, and, within a byte, lsb first.
> I plan to implement the other encoding I need:
>  - big endian, lsb first
>  - big endian, msb first 
> So far I implemented about half of the methods needed to cover the default encoding:
>  - methods to convert a large data type into an array of a smaller data type (longToBytes for example)
>  - methods to convert an array of a small data type into a larger data type (bytesToLong for example)
> The remaining half consist of the methods to convert from an array of a data type into an array of another data type (bytesToLongs, LongsToBytes)
> Once this is available for different encodings, the most useful part can be done: the "bridge" methods to convert from one encoding to another

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