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  1. Apache Arrow
  2. ARROW-14007

[C++] Fix compiler warnings in decimal promotion machinery

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Details

    • Improvement
    • Status: Resolved
    • Minor
    • Resolution: Fixed
    • None
    • 6.0.0
    • C++

    Description

      /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;
      

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              lidavidm David Li
              lidavidm David Li
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