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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2018/01/30 16:30:00 UTC
[jira] [Assigned] (ARROW-2054) Compilation warnings
[ https://issues.apache.org/jira/browse/ARROW-2054?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wes McKinney reassigned ARROW-2054:
-----------------------------------
Assignee: Antoine Pitrou
> Compilation warnings
> --------------------
>
> Key: ARROW-2054
> URL: https://issues.apache.org/jira/browse/ARROW-2054
> Project: Apache Arrow
> Issue Type: Task
> Components: C++
> Affects Versions: 0.8.0
> Reporter: Antoine Pitrou
> Assignee: Antoine Pitrou
> Priority: Trivial
> Labels: build, pull-request-available
> Fix For: 0.9.0
>
>
> I suppose this may vary depending on the compiler, but I get the following warnings with gcc 4.9:
> {code}
> /home/antoine/arrow/cpp/src/plasma/fling.cc: In function ‘int send_fd(int, int)’:
> /home/antoine/arrow/cpp/src/plasma/fling.cc:46:50: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
> *reinterpret_cast<int*>(CMSG_DATA(header)) = fd;
> ^
> /home/antoine/arrow/cpp/src/arrow/python/io.cc: In member function ‘virtual arrow::Status arrow::py::PyReadableFile::Read(int64_t, std::shared_ptr<arrow::Buffer>*)’:
> /home/antoine/arrow/cpp/src/arrow/python/io.cc:153:60: warning: ‘bytes_obj’ may be used uninitialized in this function [-Wmaybe-uninitialized]
> Py_DECREF(bytes_obj);
> ^
> /home/antoine/arrow/cpp/src/arrow/python/io.cc: In member function ‘virtual arrow::Status arrow::py::PyReadableFile::Read(int64_t, int64_t*, void*)’:
> /home/antoine/arrow/cpp/src/arrow/python/io.cc:141:60: warning: ‘bytes_obj’ may be used uninitialized in this function [-Wmaybe-uninitialized]
> Py_DECREF(bytes_obj);
> ^
> /home/antoine/arrow/cpp/src/arrow/python/io.cc: In member function ‘virtual arrow::Status arrow::py::PyReadableFile::GetSize(int64_t*)’:
> /home/antoine/arrow/cpp/src/arrow/python/io.cc:187:20: warning: ‘file_size’ may be used uninitialized in this function [-Wmaybe-uninitialized]
> *size = file_size;
> ^
> /home/antoine/arrow/cpp/src/arrow/python/io.cc:46:65: warning: ‘current_position’ may be used uninitialized in this function [-Wmaybe-uninitialized]
> const_cast<char*>(argspec), args...);
> ^
> /home/antoine/arrow/cpp/src/arrow/python/io.cc:175:11: note: ‘current_position’ was declared here
> int64_t current_position;
> ^
> /home/antoine/arrow/cpp/src/arrow/ipc/json-internal.cc: In function ‘arrow::Status arrow::ipc::internal::json::GetField(const Value&, const arrow::ipc::DictionaryMemo*, std::shared_ptr<arrow::Field>*)’:
> /home/antoine/arrow/cpp/src/arrow/ipc/json-internal.cc:876:81: warning: ‘dictionary_id’ may be used uninitialized in this function [-Wmaybe-uninitialized]
> RETURN_NOT_OK(dictionary_memo->GetDictionary(dictionary_id, &dictionary));
> ^
> /home/antoine/arrow/cpp/src/arrow/ipc/json-internal.cc: In function ‘arrow::Status arrow::ipc::internal::json::ReadSchema(const Value&, arrow::MemoryPool*, std::shared_ptr<arrow::Schema>*)’:
> /home/antoine/arrow/cpp/src/arrow/ipc/json-internal.cc:1354:80: warning: ‘dictionary_id’ may be used uninitialized in this function [-Wmaybe-uninitialized]
> RETURN_NOT_OK(dictionary_memo->AddDictionary(dictionary_id, dictionary));
> ^
> /home/antoine/arrow/cpp/src/arrow/ipc/json-internal.cc:1349:13: note: ‘dictionary_id’ was declared here
> int64_t dictionary_id;
> ^
> In file included from /home/antoine/arrow/cpp/src/arrow/api.h:25:0,
> from /home/antoine/arrow/cpp/src/arrow/python/builtin_convert.cc:29:
> /home/antoine/arrow/cpp/src/arrow/builder.h: In member function ‘arrow::Status arrow::py::TimestampConverter::AppendItem(const arrow::py::OwnedRef&)’:
> /home/antoine/arrow/cpp/src/arrow/builder.h:284:5: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized]
> raw_data_[length_++] = val;
> ^
> /home/antoine/arrow/cpp/src/arrow/python/builtin_convert.cc:576:13: note: ‘t’ was declared here
> int64_t t;
> ^
> {code}
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