David Li created ARROW-14007:
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Summary: [C++] Fix compiler warnings in decimal promotion machinery
Key: ARROW-14007
URL: https://issues.apache.org/jira/browse/ARROW-14007
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: David Li
Assignee: David Li
{noformat}
/home/lidavidm/Code/upstream/arrow-12671/cpp/src/arrow/result.h:452:30:
warning: 'left_scaleup' may be used uninitialized in this function
[-Wmaybe-uninitialized]
452 | auto&& result_name = (rexpr);
\
| ^
/home/lidavidm/Code/upstream/arrow-12671/cpp/src/arrow/compute/kernels/codegen_internal.cc:388:11:
note: 'left_scaleup' was declared here
388 | int32_t left_scaleup, right_scaleup;
| ^~~~~~~~~~~~
In file included from
/home/lidavidm/Code/upstream/arrow-12671/cpp/src/arrow/array/data.h:27,
from
/home/lidavidm/Code/upstream/arrow-12671/cpp/src/arrow/array/array_base.h:26,
from
/home/lidavidm/Code/upstream/arrow-12671/cpp/src/arrow/array/builder_binary.h:30,
from
/home/lidavidm/Code/upstream/arrow-12671/cpp/src/arrow/compute/kernels/codegen_internal.h:27,
from
/home/lidavidm/Code/upstream/arrow-12671/cpp/src/arrow/compute/kernels/codegen_internal.cc:18:
/home/lidavidm/Code/upstream/arrow-12671/cpp/src/arrow/result.h:452:30:
warning: 'right_scaleup' may be used uninitialized in this function
[-Wmaybe-uninitialized]
452 | auto&& result_name = (rexpr);
\
| ^
/home/lidavidm/Code/upstream/arrow-12671/cpp/src/arrow/compute/kernels/codegen_internal.cc:388:25:
note: 'right_scaleup' was declared here
388 | int32_t left_scaleup, right_scaleup;
{noformat}
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