Method async_send

include/boost/asio/basic_raw_socket.hpp:475–487

      BOOST_ASIO_COMPLETION_TOKEN_FOR(void (boost::system::error_code,
        std::size_t)) WriteToken = default_completion_token_t<executor_type>>
  auto async_send(const ConstBufferSequence& buffers,
      WriteToken&& token = default_completion_token_t<executor_type>())
    -> decltype(
      async_initiate<WriteToken,
        void (boost::system::error_code, std::size_t)>(
          declval<initiate_async_send>(), token,
          buffers, socket_base::message_flags(0)))
  {
    return async_initiate<WriteToken,
      void (boost::system::error_code, std::size_t)>(
        initiate_async_send(this), token,
        buffers, socket_base::message_flags(0));
  }

  /// Start an asynchronous send on a connected socket.
  /**