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https://issues.apache.org/jira/browse/ARROW-14960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17452023#comment-17452023
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David Li commented on ARROW-14960:
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I'm rather torn since I wouldn't want us to accumulate a lot of deviations from
the guide over time, but this would be a lot of churn for IMO little benefit.
In addition to noting it as a deviation, we could also host a copy of the guide
"as of" when we originally started using it and link to that as well, just to
avoid future doubt/surprises.
> [C++] Google style guide allows mutable references now, what do?
> ----------------------------------------------------------------
>
> Key: ARROW-14960
> URL: https://issues.apache.org/jira/browse/ARROW-14960
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Ben Kietzman
> Priority: Minor
>
> As of
> https://github.com/google/styleguide/commit/7a7a2f510efe7d7fc5ea8fbed549ddb31fac8f3e
> the Google Style Guide no longer forbids use of mutable references for
> output arguments, and actually encourages using them when the output argument
> is not optional.
> This puts arrow c++ style out of sync since we've continued to police toward
> usage of pointers for output arguments. We could:
> - keep the ban and note this as a deviation from google style in
> [development.rst|https://github.com/bkietz/arrow/blob/392af8aa999f940ab8fd61684820b2c6d89f7871/docs/source/developers/cpp/development.rst#L74-L75]
> - open JIRA(s) for deprecating/replacing pointer-output APIs where applicable
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