Gang Wu created ORC-1475:
----------------------------

             Summary: [C++] 
ConvertColumnReader.TestConvertNumericToStringVariant fails when compiled with 
unsigned char
                 Key: ORC-1475
                 URL: https://issues.apache.org/jira/browse/ORC-1475
             Project: ORC
          Issue Type: Bug
          Components: C++
            Reporter: Gang Wu
            Assignee: Yuanping Wu


{quote}[----------] 6 tests from ConvertColumnReader
[ RUN      ] ConvertColumnReader.betweenNumericWithoutOverflows
[       OK ] ConvertColumnReader.betweenNumericWithoutOverflows (7 ms)
[ RUN      ] ConvertColumnReader.betweenNumricOverflows
[       OK ] ConvertColumnReader.betweenNumricOverflows (0 ms)
[ RUN      ] ConvertColumnReader.booleanToString
[       OK ] ConvertColumnReader.booleanToString (0 ms)
[ RUN      ] ConvertColumnReader.TestConvertNumericToStringVariant
/root/orc/c++/test/TestConvertColumnReader.cc:339: Failure
Expected equality of these values:
  expected[1]
    Which is: "254"
  std::string(readC1.data[i], static_cast<size_t>(readC1.length[i]))
    Which is: "-2"
2
/root/orc/c++/test/TestConvertColumnReader.cc:339: Failure
Expected equality of these values:
  expected[1]
    Which is: "252"
  std::string(readC1.data[i], static_cast<size_t>(readC1.length[i]))
    Which is: "-4"
4{quote}



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