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Posted to issues@commons.apache.org by "Gilles (JIRA)" <ji...@apache.org> on 2015/08/30 18:43:45 UTC

[jira] [Resolved] (MATH-1259) Negative max in class Incrementor

     [ https://issues.apache.org/jira/browse/MATH-1259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gilles resolved MATH-1259.
--------------------------
       Resolution: Fixed
    Fix Version/s: 4.0

Commit b54dbfb6efa65e75bfd5f7c1a1322795eb94cd0f (3.6)


> Negative max in class Incrementor
> ---------------------------------
>
>                 Key: MATH-1259
>                 URL: https://issues.apache.org/jira/browse/MATH-1259
>             Project: Commons Math
>          Issue Type: Bug
>            Reporter: Gunel Jahangirova
>            Priority: Minor
>             Fix For: 4.0, 3.6
>
>         Attachments: IntegerSequence.java
>
>
> In class Incrementor in the org.apache.commons.math4.util package it is possible to pass a negative number for the max variable. Given that the count variable is initialised to 0 by default, it means that canIncrement() method will always return false. 
> I wonder whether it is an acceptable behaviour, given that documentation says that Incrementor is a utility that increments a counter until a maximum is reached. And in the case of negative max this maximum is not reachable at all. 



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