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https://issues.apache.org/jira/browse/ARROW-13104?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou reassigned ARROW-13104:
--------------------------------------
Assignee: Antoine Pitrou
> [C++] ByteStreamSplit implementation uses invalid pointer cast
> --------------------------------------------------------------
>
> Key: ARROW-13104
> URL: https://issues.apache.org/jira/browse/ARROW-13104
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Reporter: Antoine Pitrou
> Assignee: Antoine Pitrou
> Priority: Major
>
> This code in {{src/parquet/encoding.cc}}:
> {code:c++}
> template <>
> void ByteStreamSplitEncoder<FloatType>::PutArrowArray(const ::arrow::Array&
> values) {
> DirectPutImpl<::arrow::FloatArray>(values,
>
> reinterpret_cast<::arrow::BufferBuilder*>(&values_));
> }
> template <>
> void ByteStreamSplitEncoder<DoubleType>::PutArrowArray(const ::arrow::Array&
> values) {
> DirectPutImpl<::arrow::DoubleArray>(
> values, reinterpret_cast<::arrow::BufferBuilder*>(&values_));
> }
> {code}
> Casts a {{TypedBufferBuilder<T>\*}} to a {{BufferBuilder<T>\*}}. Apparently
> it works by chance...
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