Antoine Pitrou created ARROW-2054: ------------------------------------- Summary: 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
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} -- This message was sent by Atlassian JIRA (v7.6.3#76005)