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https://issues.apache.org/jira/browse/ARROW-3110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Wes McKinney resolved ARROW-3110.
---------------------------------
Resolution: Fixed
Fix Version/s: 0.11.0
Issue resolved by pull request 2464
[https://github.com/apache/arrow/pull/2464]
> [C++] Compilation warnings with gcc 7.3.0
> -----------------------------------------
>
> Key: ARROW-3110
> URL: https://issues.apache.org/jira/browse/ARROW-3110
> Project: Apache Arrow
> Issue Type: Task
> Components: C++
> Affects Versions: 0.10.0
> Reporter: Antoine Pitrou
> Assignee: Antoine Pitrou
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.11.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> This is happening when building in release mode:
> {code}
> ../src/arrow/python/python_to_arrow.cc: In function 'arrow::Status
> arrow::py::detail::BuilderAppend(arrow::BinaryBuilder*, PyObject*, bool*)':
> ../src/arrow/python/python_to_arrow.cc:388:56: warning: 'length' may be used
> uninitialized in this function [-Wmaybe-uninitialized]
> if (ARROW_PREDICT_FALSE(builder->value_data_length() + length >
> kBinaryMemoryLimit)) {
> ^
> ../src/arrow/python/python_to_arrow.cc:385:11: note: 'length' was declared
> here
> int32_t length;
> ^~~~~~
> In file included from ../src/arrow/python/serialize.cc:32:0:
> ../src/arrow/builder.h: In member function 'arrow::Status
> arrow::py::SequenceBuilder::Update(int64_t, int8_t*)':
> ../src/arrow/builder.h:413:5: warning: 'offset32' may be used uninitialized
> in this function [-Wmaybe-uninitialized]
> raw_data_[length_++] = val;
> ^~~~~~~~~
> ../src/arrow/python/serialize.cc:90:13: note: 'offset32' was declared here
> int32_t offset32;
> ^~~~~~~~
> {code}
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