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https://issues.apache.org/jira/browse/ARROW-7314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joris Van den Bossche reassigned ARROW-7314:
--------------------------------------------
Assignee: Joris Van den Bossche
> [Python] Compiler warning in pyarrow
> ------------------------------------
>
> Key: ARROW-7314
> URL: https://issues.apache.org/jira/browse/ARROW-7314
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Reporter: Neal Richardson
> Assignee: Joris Van den Bossche
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.0.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Saw this while building a wheel locally
> {code}
> -- Running cmake --build for pyarrow
> cmake --build . --config release -- -j3
> [23/24] Building CXX object CMakeFiles/lib.dir/lib.cpp.o
> lib.cpp: In function ‘PyObject* __pyx_pf_7pyarrow_3lib_90union(PyObject*,
> PyObject*, PyObject*, PyObject*)’:
> lib.cpp:37184:29: warning: comparison of integer expressions of different
> signedness: ‘Py_ssize_t’ {aka ‘long int’} and
> ‘std::vector<std::shared_ptr<arrow::Field> >::size_type’ {aka ‘long unsigned
> int’} [-Wsign-compare]
> __pyx_t_2 = ((__pyx_t_6 != __pyx_v_c_fields.size()) != 0);
> ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
> {code}
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