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From "Gilles (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MATH-1259) Negative max in class Incrementor
Date Sun, 30 Aug 2015 14:33:45 GMT

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

Gilles updated MATH-1259:
-------------------------

Fixed in 4.0
Yet to be backported to 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: 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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