Method MakeDevice

cpp/src/arrow/gpu/cuda_context.cc:583–587

 protected:
  Result<std::shared_ptr<CudaDevice>> MakeDevice(int device_number) {
    DeviceProperties props;
    RETURN_NOT_OK(props.Init(device_number));
    return std::shared_ptr<CudaDevice>(new CudaDevice({std::move(props)}));
  }

 private:
  int num_devices_;