Function ostream_wrapper

lib/yamlcpp/include/yaml-cpp/ostream_wrapper.h:19–20

 public:
  ostream_wrapper();
  explicit ostream_wrapper(std::ostream& stream);
  ostream_wrapper(const ostream_wrapper&) = delete;
  ostream_wrapper(ostream_wrapper&&) = delete;
  ostream_wrapper& operator=(const ostream_wrapper&) = delete;
  ostream_wrapper& operator=(ostream_wrapper&&) = delete;