Function:     MTWRITEC

Purpose:      Writes data to a specified tape device.

Category:     TAPES

File:         mtiodev.c

Author:       K.G. Begeman

Use:          INTEGER MTWRITEC( MTID,       Input        INTEGER
                                DATA )      Input        CHARACTER*(*)

              MTWRITEC  Returns:
                        >0 : Number of bytes actually written.
                        -1 : System error.
                        -4 : Tape device not open.
                        -9 : Call error.
                        -10: Write protected.
              MTID      Tape device id returned by MTOPEN.
              DATA      Character variable. The number of bytes MTWRITEC
                        tries to write is equal to LEN(DATA).

Warning:      Code is System dependant!

Updates:      Jul 20, 1989, KGB, Document created.