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Posted to issues@mesos.apache.org by "Neil Conway (JIRA)" <ji...@apache.org> on 2016/10/28 14:31:58 UTC

[jira] [Assigned] (MESOS-6496) Support up-casting of Shared and Owned

     [ https://issues.apache.org/jira/browse/MESOS-6496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neil Conway reassigned MESOS-6496:
----------------------------------

    Assignee: Neil Conway

> Support up-casting of Shared<T> and Owned<T>
> --------------------------------------------
>
>                 Key: MESOS-6496
>                 URL: https://issues.apache.org/jira/browse/MESOS-6496
>             Project: Mesos
>          Issue Type: Bug
>          Components: libprocess
>            Reporter: Neil Conway
>            Assignee: Neil Conway
>              Labels: mesosphere, tech-debt
>
> It should be possible to pass a {{Shared<Derived>}} value to an object that takes a parameter of type {{Shared<Base>}}. Similarly for {{Owned}}. In general, {{Shared<T2>}} should be implicitly convertable to {{Shared<T1>}} iff {{T2}} is implicitly convertable to {{T1}}. In C++11, this works because they define the appropriate conversion constructor.



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