[jira] Updated: (MATH-243) MathUtils.gcd(Integer.MIN_VALUE, 0) should throw an Exception instead of returning Integer.MIN_VALUE

["Christian Semrau (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MATH-243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christian Semrau updated MATH-243:
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    Attachment: gcdPatch.txt

Attached is a patch for gcd, and also for lcm, which failed for some special cases: lcm failed for (0,0) and for (Integer.MIN_VALUE, power of 2).

I also added Javadoc for special cases.

> MathUtils.gcd(Integer.MIN_VALUE, 0) should throw an Exception instead of returning Integer.MIN_VALUE
> ----------------------------------------------------------------------------------------------------
>
>                 Key: MATH-243
>                 URL: https://issues.apache.org/jira/browse/MATH-243
>             Project: Commons Math
>          Issue Type: Bug
>            Reporter: Christian Semrau
>            Priority: Minor
>         Attachments: gcdPatch.txt
>
>
> The gcd method should throw an Exception for gcd(Integer.MIN_VALUE, 0), like for gcd(Integer.MIN_VALUE, Integer.MIN_VALUE). The method should only return nonnegative results.

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