[jira] [Resolved] (IMPALA-13976) Replace boost::function/bind/mem_fn with the standard library

["Michael Smith (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-13976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Smith resolved IMPALA-13976.
------------------------------------
    Fix Version/s: Impala 5.0.0
       Resolution: Fixed

> Replace boost::function/bind/mem_fn with the standard library
> -------------------------------------------------------------
>
>                 Key: IMPALA-13976
>                 URL: https://issues.apache.org/jira/browse/IMPALA-13976
>             Project: IMPALA
>          Issue Type: Task
>          Components: Backend
>    Affects Versions: Impala 5.0.0
>            Reporter: Joe McDonnell
>            Priority: Major
>             Fix For: Impala 5.0.0
>
>
> The standard library now supports std::function/bind/mem_fn that is equivalent to boost's functionality. There are a few minor differences, but it is mostly a drop-in replacement. 
> Some differences:
>  # Placeholders _1 and _2 are in the std placeholders namespace
>  # boost::function uses an empty() method to tell if it is unset. Instead, std::function can be compared to nullptr.
> One upside of switching is that std::function properly supports nullptr where boost requires NULL. It is one of the few locations where using nullptr instead of NULL matters.



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