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https://issues.apache.org/jira/browse/ARROW-9118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17137945#comment-17137945
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Wes McKinney commented on ARROW-9118:
-------------------------------------
This can be used to check for integer downcast overflows faster
> [C++] Add more general BoundsCheck function that also checks for arbitrary
> lower limits in integer arrays
> ---------------------------------------------------------------------------------------------------------
>
> Key: ARROW-9118
> URL: https://issues.apache.org/jira/browse/ARROW-9118
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Wes McKinney
> Assignee: Wes McKinney
> Priority: Major
> Fix For: 1.0.0
>
>
> See ARROW-9083. The current {{IndexBoundsCheck}} is specialized to skip a
> comparison for unsigned integers and uses 0 as the lower bound for signed
> integers. This could be generalized so that we could check e.g. if int64
> values will fit in the int32 range
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