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List:       jakarta-commons-dev
Subject:    [jira] [Updated] (MATH-552) MultidimensionalCounter.getCounts(int)
From:       "James Bence (JIRA)" <jira () apache ! org>
Date:       2011-03-31 23:18:05
Message-ID: 855746959.26077.1301613485793.JavaMail.tomcat () hel ! zones ! apache ! org
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     [ https://issues.apache.org/jira/browse/MATH-552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel \
]

James Bence updated MATH-552:
-----------------------------

    Attachment: MultidimensionalCounter.patch

This patch file patches the corresponding test to reveal the problem, and then \
patches the MultidimensionalCounter class to fix the problem.

> MultidimensionalCounter.getCounts(int) returns wrong array of indices
> ---------------------------------------------------------------------
> 
> Key: MATH-552
> URL: https://issues.apache.org/jira/browse/MATH-552
> Project: Commons Math
> Issue Type: Bug
> Affects Versions: 2.2
> Environment: Java 1.6
> Reporter: James Bence
> Priority: Minor
> Attachments: MultidimensionalCounter.patch
> 
> 
> MultidimensionalCounter counter = new MultidimensionalCounter(2, 4);
> for (Integer i : counter) {
> int[] x = counter.getCounts(i);
> System.out.println(i + " " + Arrays.toString(x));
> }
> Output is:
> 0 [0, 0]
> 1 [0, 1]
> 2 [0, 2]
> 3 [0, 2]   <=== should be [0, 3]
> 4 [1, 0]
> 5 [1, 1]
> 6 [1, 2]
> 7 [1, 2]   <=== should be [1, 3]

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