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https://issues.apache.org/jira/browse/ARROW-588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15885924#comment-15885924
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Wes McKinney commented on ARROW-588:
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I started looking at this. Fixing all the {{-Wconversion}} warnings on 32-bit
probably has diminishing returns, because anytime we use an {{int64_t}} as an
index (e.g. with {{std::vector}}), it complains about a cast to
{{std::vector<T>::size_type}}.
> [C++] Fix compiler warnings on 32-bit platforms
> -----------------------------------------------
>
> Key: ARROW-588
> URL: https://issues.apache.org/jira/browse/ARROW-588
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Wes McKinney
>
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