[C++][CI] Valgrind errors in StringConversion.ToHalfFloat #41154
Description
Describe the bug, including details regarding any error messages, version, and platform.
[ RUN ] StringConversion.ToHalfFloat
==12283== Conditional jump or move depends on uninitialised value(s)
==12283== at 0x5CA5C9A: arrow::util::(anonymous namespace)::BinaryConverter<unsigned int>::ToBinary16(unsigned int) (float16.cc:88)
==12283== by 0x5CA5EDA: arrow::util::Float16::FromFloat(float) (float16.cc:210)
fun:_ZN7testing4Test3RunEv
fun:_ZN7testing8TestInfo3RunEv
fun:_ZN7testing9TestSuite3RunEv
fun:_ZN7testing8internal12UnitTestImpl11RunAllTestsEv
fun:_ZN7testing8internal38HandleSehExceptionsInMethodIfSupportedINS0_12UnitTestImplEbEET0_PT_MS4_FS3_vEPKc
fun:_ZN7testing8internal35HandleExceptionsInMethodIfSupportedINS0_12UnitTestImplEbEET0_PT_MS4_FS3_vEPKc
fun:_ZN7testing8UnitTest3RunEv
fun:_Z13RUN_ALL_TESTSv
fun:main
}
[ OK ] StringConversion.ToHalfFloat (18 ms)
Component(s)
C++, Continuous Integration