*     S17DGF Example Program Text
*     Mark 14 Revised. NAG Copyright 1989.
*     .. Parameters ..
      INTEGER          NIN, NOUT
      PARAMETER        (NIN=5,NOUT=6)
*     .. Local Scalars ..
      COMPLEX *16      AI, Z
      INTEGER          IFAIL, NZ
      CHARACTER        DERIV, SCAL
*     .. External Subroutines ..
      EXTERNAL         S17DGF
*     .. Executable Statements ..
      WRITE (NOUT,*) 'S17DGF Example Program Results'
*     Skip heading in data file
      READ (NIN,*)
      WRITE (NOUT,*)
      WRITE (NOUT,*)
     +  'DERIV           Z         SCAL           AI         NZ  IFAIL'
      WRITE (NOUT,*)
   20 READ (NIN,*,END=40) DERIV, Z, SCAL
      IFAIL = 1
*
      CALL S17DGF(DERIV,Z,SCAL,AI,NZ,IFAIL)
*
      IF (IFAIL.GE.0) THEN
         WRITE (NOUT,99999) DERIV, Z, SCAL, AI, NZ, IFAIL
         GO TO 20
      ELSE
         WRITE (NOUT,99998) IFAIL
      END IF
   40 CONTINUE
*
99999 FORMAT (3X,A,'   (',F8.4,',',F8.4,')   ',A,'   (',F8.4,',',F8.4,
     +       ')',I4,I5)
99998 FORMAT (1X,' ** S17DGF returned with IFAIL = ',I5)
      END