[jira] [Created] (ARROW-17930) [CI][C++] Valgrind failure in PrintValue

["Antoine Pitrou (Jira)" <ji...@apache.org>]

Antoine Pitrou created ARROW-17930:
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             Summary: [CI][C++] Valgrind failure in PrintValue<arrow::dataset::ScannerTestParams>
                 Key: ARROW-17930
                 URL: https://issues.apache.org/jira/browse/ARROW-17930
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++, Continuous Integration
            Reporter: Antoine Pitrou
             Fix For: 10.0.0



See https://dev.azure.com/ursacomputing/crossbow/_build/results?buildId=36513&view=logs&j=0da5d1d9-276d-5173-c4c4-9d4d4ed14fdb&t=d9b15392-e4ce-5e4c-0c8c-b69645229181&l=3863

{code}
==19602== Use of uninitialised value of size 8
==19602==    at 0x68277E1: _itoa_word (_itoa.c:180)
==19602==    by 0x682AEDD: vfprintf (vfprintf.c:1642)
==19602==    by 0x68578AF: vsnprintf (vsnprintf.c:114)
==19602==    by 0x6833F9E: snprintf (snprintf.c:33)
==19602==    by 0x4C3E46D: testing::(anonymous namespace)::PrintByteSegmentInObjectTo(unsigned char const*, unsigned long, unsigned long, std::ostream*) (gtest-printers.cc:82)
==19602==    by 0x4C3E50D: testing::(anonymous namespace)::PrintBytesInObjectToImpl(unsigned char const*, unsigned long, std::ostream*) (gtest-printers.cc:99)
==19602==    by 0x4C3E5B1: testing::internal::PrintBytesInObjectTo(unsigned char const*, unsigned long, std::ostream*) (gtest-printers.cc:131)
==19602==    by 0x1EB2B2: PrintValue<arrow::dataset::ScannerTestParams> (gtest-printers.h:270)
[ etc. ]
{code}

This is probably trivial to fix but needs fixing nevertheless :-)



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