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Posted to dev@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/09/29 09:25:00 UTC

[jira] [Created] (ARROW-3362) [R] Guard against null buffers

Wes McKinney created ARROW-3362:
-----------------------------------

             Summary: [R] Guard against null buffers
                 Key: ARROW-3362
                 URL: https://issues.apache.org/jira/browse/ARROW-3362
             Project: Apache Arrow
          Issue Type: Improvement
          Components: R
            Reporter: Wes McKinney
             Fix For: 0.12.0


The R C++ bindings feature a number of cases where a data buffer is being accessed when it may possibly be null in the case of a 0-length array. This will cause a segfault

https://github.com/apache/arrow/blob/master/r/src/array.cpp#L245

I suggest defining some helper functions as we have done elsewhere to assist with getting a typed offset into a buffer but passing through nullptr if the buffer object is null



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