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https://issues.apache.org/jira/browse/ARROW-7049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Neal Richardson updated ARROW-7049:
-----------------------------------
Fix Version/s: (was: 0.16.0)
1.0.0
> [C++] warnings building on mingw-w64
> ------------------------------------
>
> Key: ARROW-7049
> URL: https://issues.apache.org/jira/browse/ARROW-7049
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Affects Versions: 0.15.1
> Reporter: Jeroen
> Priority: Minor
> Fix For: 1.0.0
>
>
> Two warnings when building libarrow 0.15.1 on mingw-w64:
> {code}
> [ 2%] Running thrift compiler on parquet.thrift
> [WARNING:C:/msys64/home/mingw-packages/mingw-w64-arrow/src/apache-arrow-0.15.1/cpp/src/parquet/parquet.thrift:297]
> The "byte" type is a compatibility alias for "i8". Use "i8" to emphasize the
> signedness of this type.
> {code}
> And later:
> {code}
> 81%] Building CXX object
> src/parquet/CMakeFiles/parquet_static.dir/column_reader.cc.obj
> C:/msys64/home/mingw-packages/mingw-w64-arrow/src/apache-arrow-0.15.1/cpp/src/parquet/arrow/writer.cc:
> In member function 'virtual arrow::Status
> parquet::arrow::FileWriterImpl::WriteColumnChunk(const
> std::shared_ptr<arrow::ChunkedArray>&, int64_t, int64_t)':
> C:/msys64/home/mingw-packages/mingw-w64-arrow/src/apache-arrow-0.15.1/cpp/src/parquet/arrow/writer.cc:79:41:
> warning: 'schema_field' may be used uninitialized in this function
> [-Wmaybe-uninitialized]
> schema_manifest_(schema_manifest) {}
> ^
> C:/msys64/home/mingw-packages/mingw-w64-arrow/src/apache-arrow-0.15.1/cpp/src/parquet/arrow/writer.cc:466:24:
> note: 'schema_field' was declared here
> const SchemaField* schema_field;
> {code}
> Maybe CI with `CXXFLAGS += -Werror` ?
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