[jira] [Created] (ARROW-1523) [C++] Add helper data struct with methods for reading a validity bitmap possibly having a non-zero offset

[Wes McKinney (JIRA)]

Wes McKinney created ARROW-1523:
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             Summary: [C++] Add helper data struct with methods for reading a 
validity bitmap possibly having a non-zero offset
                 Key: ARROW-1523
                 URL: https://issues.apache.org/jira/browse/ARROW-1523
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Wes McKinney
             Fix For: 0.8.0


We're currently doing this using macros, but having a struct data structure 
with methods would may have the same performance (we should benchmark!) and 
more readable code



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