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https://issues.apache.org/jira/browse/ARROW-8328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney updated ARROW-8328:
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Fix Version/s: (was: 1.0.0)
> [C++] MSVC is not respecting warning-disable flags
> --------------------------------------------------
>
> Key: ARROW-8328
> URL: https://issues.apache.org/jira/browse/ARROW-8328
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Affects Versions: 0.16.0
> Reporter: Ben Kietzman
> Assignee: Ben Kietzman
> Priority: Major
>
> We provide [warning-disabling flags to
> MSVC|https://github.com/apache/arrow/blob/72433c6/cpp/cmake_modules/SetupCxxFlags.cmake#L151-L153]
> including one which should disable all conversion warnings. However this is
> not completely effectual and Appveyor will still emit conversion warnings
> (which are then treated as errors), requiring insertion of otherwise
> unnecessary explicit casts or {{#pragma}}s (for example
> https://github.com/apache/arrow/pull/6820 ).
> Perhaps flag ordering is significant? In any case, as we have conversion
> warnings disabled for other compilers we should ensure they are completely
> disabled for MSVC as well.
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