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Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2016/05/10 18:50:12 UTC

[jira] [Resolved] (SYSTEMML-675) Negative increment support on for/parfor loops

     [ https://issues.apache.org/jira/browse/SYSTEMML-675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias Boehm resolved SYSTEMML-675.
-------------------------------------
       Resolution: Fixed
    Fix Version/s: SystemML 0.10

> Negative increment support on for/parfor loops
> ----------------------------------------------
>
>                 Key: SYSTEMML-675
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-675
>             Project: SystemML
>          Issue Type: Bug
>          Components: Compiler, Runtime
>            Reporter: Matthias Boehm
>             Fix For: SystemML 0.10
>
>
> Currently, for and parfor loops do not support negative increments. However, unspecified negative increments (e.g., 7:1) are treated as positive increments which results in surprising behavior (unexpected because not consistent seq). This tasks covers two improvements: In a first step, we need to improve error handling of for and parfor loops. In a second step, we should also add support for negative increments by consolidating the functionality with the seq builtin function. 



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