Function MakeComplex128

cpp/src/arrow/testing/gtest_util.cc:1022–1029

std::shared_ptr<DataType> complex128() { return std::make_shared<Complex128Type>(); }

std::shared_ptr<Array> MakeComplex128(const std::shared_ptr<Array>& real,
                                      const std::shared_ptr<Array>& imag) {
  auto type = complex128();
  std::shared_ptr<Array> storage(
      new StructArray(checked_cast<const ExtensionType&>(*type).storage_type(),
                      real->length(), {real, imag}));
  return ExtensionType::WrapArray(type, storage);
}

std::shared_ptr<Array> ExampleUuid() {
  auto arr = arrow::ArrayFromJSON(