Function assign

include/boost/asio/basic_file.hpp:576–582

Assign an existing native file to the file. * This function opens the file to hold an existing native file. * * @param native_file A native file. * * @throws boost::system::system_error Thrown on failure. */

   * @throws boost::system::system_error Thrown on failure.
   */
  void assign(const native_handle_type& native_file)
  {
    boost::system::error_code ec;
    impl_.get_service().assign(
        impl_.get_implementation(), native_file, ec);
    boost::asio::detail::throw_error(ec, "assign");
  }

  /// Assign an existing native file to the file.
  /*