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https://issues.apache.org/jira/browse/ARROW-85?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17657186#comment-17657186
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Rok Mihevc commented on ARROW-85:
---------------------------------
This issue has been migrated to [issue
#15504|https://github.com/apache/arrow/issues/15504] on GitHub. Please see the
[migration documentation|https://github.com/apache/arrow/issues/14542] for
further details.
> C++: memcmp can be avoided in Equal when comparing with the same Buffer
> -----------------------------------------------------------------------
>
> Key: ARROW-85
> URL: https://issues.apache.org/jira/browse/ARROW-85
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Kai Zheng
> Assignee: Kai Zheng
> Priority: Major
> Fix For: 0.1.0
>
>
> It looks too expensive to use memcmp to compare two buffers. Instead, the
> starting address and length/capacity would be good enough to use. Higher
> level codes relying on memcmp behaviour can be done in higher level.
> Update: memcmp should be avoided in Equal when comparing with the same
> Buffer. In other cases, it's still needed to know the content are the same or
> not.
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