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https://issues.apache.org/jira/browse/ARROW-16659?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
ASF GitHub Bot updated ARROW-16659:
-----------------------------------
Labels: pull-request-available (was: )
> [C++] Remove ambiguous constructor for VectorKernel
> ---------------------------------------------------
>
> Key: ARROW-16659
> URL: https://issues.apache.org/jira/browse/ARROW-16659
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Tobias Zagorni
> Assignee: Tobias Zagorni
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The VectorKernel class currently has two constructors for kernels that only a
> KernelSignature and an ArrayKernelExec - one with just the two arugments, and
> one with default argument values.
> Trying to use them results in an ambiguous call error like this:
> {{/home/zagto/Code/arrow/cpp/src/arrow/compute/kernels/vector_run_length_encode.cc:
> In function 'void arrow::compute::internal::Register}}
> {{VectorRunLengthEncode(arrow::compute::FunctionRegistry*)': }}
> {{/home/zagto/Code/arrow/cpp/src/arrow/compute/kernels/vector_run_length_encode.cc:137:34:
> error: call of overloaded 'VectorKernel(std::}}
> {{shared_ptr<arrow::compute::KernelSignature>&,
> std::function<arrow::Status(arrow::compute::KernelContext*, const
> arrow::compute::ExecBa}}
> {{tch&, arrow::Datum*)>&)' is ambiguous }}
> {{ 137 | VectorKernel kernel(sig, exec); }}
> {{ | ^ }}
> {{In file included from
> /home/zagto/Code/arrow/cpp/src/arrow/compute/function.h:27, }}
> {{ from
> /home/zagto/Code/arrow/cpp/src/arrow/compute/api_vector.h:23, }}
> {{ from
> /home/zagto/Code/arrow/cpp/src/arrow/compute/kernels/vector_run_length_encode.cc:1:
> }}
> {{/home/zagto/Code/arrow/cpp/src/arrow/compute/kernel.h:616:3: note:
> candidate: 'arrow::compute::VectorKernel::VectorKernel(std::shared_}}
> {{ptr<arrow::compute::KernelSignature>, arrow::compute::ArrayKernelExec,
> arrow::compute::KernelInit, arrow::compute::VectorFinalize)' }}
> {{ 616 | VectorKernel(std::shared_ptr<KernelSignature> sig, ArrayKernelExec
> exec, }}
> {{ | ^~~~~~~~~~~~ }}
> {{/home/zagto/Code/arrow/cpp/src/arrow/compute/kernel.h:607:3: note:
> candidate: 'arrow::compute::VectorKernel::VectorKernel(std::shared_}}
> {{ptr<arrow::compute::KernelSignature>, arrow::compute::ArrayKernelExec)' }}
> {{ 607 | VectorKernel(std::shared_ptr<KernelSignature> sig, ArrayKernelExec
> exec) }}
> {{ | ^~~~~~~~~~~~}}
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