Antoine Pitrou created ARROW-12088:
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Summary: [Python][C++] Warning about offsetof in
pyarrow.dataset.RecordBatchIterator
Key: ARROW-12088
URL: https://issues.apache.org/jira/browse/ARROW-12088
Project: Apache Arrow
Issue Type: Bug
Components: Python
Reporter: Antoine Pitrou
I just saw the following warning when compiling PyArrow:
{code}
/home/antoine/arrow/dev/python/build/temp.linux-x86_64-3.7/_dataset.cpp:46102:151:
warning: offset of on non-standard-layout type 'struct
__pyx_obj_7pyarrow_8_dataset_RecordBatchIterator' [-Winvalid-offsetof]
if (__pyx_type_7pyarrow_8_dataset_RecordBatchIterator.tp_weaklistoffset == 0)
__pyx_type_7pyarrow_8_dataset_RecordBatchIterator.tp_weaklistoffset =
offsetof(struct __pyx_obj_7pyarrow_8_dataset_RecordBatchIterator,
__pyx_base.__weakref__);
^
~~~~~~~~~~
/usr/lib/llvm-10/lib/clang/10.0.0/include/stddef.h:104:24: note: expanded from
macro 'offsetof'
#define offsetof(t, d) __builtin_offsetof(t, d)
^ ~
1 warning generated.
{code}
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