[jira] [Created] (ARROW-1094) [C++] Incomplete buffer reads in arrow::io::ReadableFile should exactly truncate returned buffer

[Wes McKinney (JIRA)]

Wes McKinney created ARROW-1094:
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             Summary: [C++] Incomplete buffer reads in arrow::io::ReadableFile 
should exactly truncate returned buffer
                 Key: ARROW-1094
                 URL: https://issues.apache.org/jira/browse/ARROW-1094
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
    Affects Versions: 0.4.0
            Reporter: Wes McKinney
            Assignee: Wes McKinney
             Fix For: 0.5.0


Currently the buffer is only being truncated if it is sufficiently small:

https://github.com/apache/arrow/blob/master/cpp/src/arrow/io/file.cc#L416



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