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Posted to issues@arrow.apache.org by "kou (via GitHub)" <gi...@apache.org> on 2023/05/17 20:41:52 UTC
[GitHub] [arrow] kou opened a new issue, #35651: [C++] util/small_vector_test.cc reports a self-move warning with MinGW
kou opened a new issue, #35651:
URL: https://github.com/apache/arrow/issues/35651
### Describe the bug, including details regarding any error messages, version, and platform.
https://github.com/apache/arrow/actions/runs/5006155150/jobs/8971042580#step:7:1154
```text
D:/a/arrow/arrow/cpp/src/arrow/util/small_vector_test.cc:417:22: warning: moving 'moved_moved_ints' of type 'arrow::internal::TestSmallStaticVector<arrow::internal::VectorIntLikeParam<arrow::internal::StaticVectorTraits, arrow::MoveOnlyDataType> >::IntVectorType<5>' {aka 'arrow::internal::StaticVectorImpl<arrow::MoveOnlyDataType, 5, arrow::internal::StaticVectorStorage<arrow::MoveOnlyDataType, 5, true> >'} to itself [-Wself-move]
417 | moved_moved_ints = std::move(moved_moved_ints);
| ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
D:/a/arrow/arrow/cpp/src/arrow/util/small_vector_test.cc:417:22: note: remove 'std::move' call
```
### Component(s)
C++
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[GitHub] [arrow] pitrou closed issue #35651: [C++] util/small_vector_test.cc reports a self-move warning with MinGW
Posted by "pitrou (via GitHub)" <gi...@apache.org>.
pitrou closed issue #35651: [C++] util/small_vector_test.cc reports a self-move warning with MinGW
URL: https://github.com/apache/arrow/issues/35651
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[GitHub] [arrow] zhjwpku commented on issue #35651: [C++] util/small_vector_test.cc reports a self-move warning with MinGW
Posted by "zhjwpku (via GitHub)" <gi...@apache.org>.
zhjwpku commented on issue #35651:
URL: https://github.com/apache/arrow/issues/35651#issuecomment-1609663382
I got the same error on macos with gcc 13.1
/Users/zhjwpku/zhjwpku/arrow/cpp/src/arrow/util/small_vector_test.cc:418:22: error: moving 'moved_moved_ints' of type 'arrow::internal::TestSmallStaticVector<arrow::internal::VectorIntLikeParam<arrow::internal::SmallVectorTraits, arrow::MoveOnlyDataType> >::IntVectorType<5>' {aka 'arrow::internal::StaticVectorImpl<arrow::MoveOnlyDataType, 5, arrow::internal::SmallVectorStorage<arrow::MoveOnlyDataType, 5> >'} to itself [-Werror=self-move]
/Users/zhjwpku/zhjwpku/arrow/cpp/src/arrow/util/small_vector_test.cc:418:22: note: remove 'std::move' call
I checked the [GCC 13 Release note](https://gcc.gnu.org/gcc-13/changes.html), this is a newly added warning, I guess the warning with MinGW might be using
gcc 13 too.
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