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https://issues.apache.org/jira/browse/MESOS-5037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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haosdent updated MESOS-5037:
----------------------------
Component/s: stout
> foreachkey behaviour is not expected in multimap
> ------------------------------------------------
>
> Key: MESOS-5037
> URL: https://issues.apache.org/jira/browse/MESOS-5037
> Project: Mesos
> Issue Type: Bug
> Components: stout
> Reporter: haosdent
> Labels: stout
>
> Currently the {{foreachkey}} implementation is
> {code}
> #define foreachkey(VAR, COL) \
> foreachpair (VAR, __foreach__::ignore, COL)
> {code}
> This works in most structures. But in multimap, one key may map to multi
> values. This means there are multi pairs which have same key. So when call
> {{foreachkey}}, the {{key}} would duplicated when iteration. My idea to solve
> this is we prefer call {{foreach}} on {{(COL).keys()}} if {{keys()}} method
> exists in {{COL}}.
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