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##### basic_serial_port::close (2 of 2 overloads)

Close the serial port.

    boost::system::error_code close(
        boost::system::error_code & ec);

This function is used to close the serial port. Any asynchronous read or write operations will be cancelled immediately, and will complete with the `boost::asio::error::operation_aborted` error.

###### Parameters

ec

  Set to indicate what error occurred, if any.