Function async_result

include/boost/asio/packaged_task.hpp:46–49

The constructor extracts the future from the packaged task.

  /// The constructor extracts the future from the packaged task.
  explicit async_result(completion_handler_type& h)
    : future_(h.get_future())
  {
  }

  /// Returns the packaged task's future.
  return_type get()