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Posted to issues@arrow.apache.org by "Benson Muite (Jira)" <ji...@apache.org> on 2021/11/17 08:11:00 UTC

[jira] [Created] (ARROW-14731) [C++][Compute] Conversion to unsigned types can be problematic for negative numbers

Benson Muite created ARROW-14731:
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             Summary: [C++][Compute] Conversion to unsigned types can be problematic for negative numbers
                 Key: ARROW-14731
                 URL: https://issues.apache.org/jira/browse/ARROW-14731
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++
            Reporter: Benson Muite
            Assignee: Benson Muite


On line 248 of https://github.com/apache/arrow/blob/master/cpp/src/arrow/compute/kernels/scalar_arithmetic.cc int16 type is converted to uint32 type because overflows are better handled in uint32 than in int32 This will be problematic if some of the numbers are negative. It may be better to use th default int32 and explicitly check for overflows if needed.



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