1       SUBROUTINE ZERRAB( NUNIT )
  2 *
  3 *  -- LAPACK test routine (version 3.1.1) --
  4 *     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
  5 *     January 2007
  6 *
  7 *     .. Scalar Arguments ..
  8       INTEGER            NUNIT
  9 *     ..
 10 *
 11 *  Purpose
 12 *  =======
 13 *
 14 *  DERRAB tests the error exits for ZCGESV.
 15 *
 16 *  Arguments
 17 *  =========
 18 *
 19 *  NUNIT   (input) INTEGER
 20 *          The unit number for output.
 21 *
 22 *  =====================================================================
 23 *
 24 *     .. Parameters ..
 25       INTEGER            NMAX
 26       PARAMETER          ( NMAX = 4 )
 27 *     ..
 28 *     .. Local Scalars ..
 29       INTEGER            I, INFO, ITER, J
 30 *     ..
 31 *     .. Local Arrays ..
 32       INTEGER            IP( NMAX )
 33       COMPLEX*16         A( NMAX, NMAX ), AF( NMAX, NMAX ), B( NMAX ),
 34      $                   C( NMAX ), R( NMAX ), R1( NMAX ), R2( NMAX ),
 35      $                   W( 2*NMAX ), X( NMAX )
 36       COMPLEX*16         WORK(1)
 37       COMPLEX            SWORK(1)
 38       DOUBLE PRECISION   RWORK(1)
 39 *     ..
 40 *     .. External Functions ..
 41 *     ..
 42 *     .. External Subroutines ..
 43       EXTERNAL           CHKXER, ZCGESV
 44 *     ..
 45 *     .. Scalars in Common ..
 46       LOGICAL            LERR, OK
 47       CHARACTER*32       SRNAMT
 48       INTEGER            INFOT, NOUT
 49 *     ..
 50 *     .. Common blocks ..
 51       COMMON             / INFOC / INFOT, NOUT, OK, LERR
 52       COMMON             / SRNAMC / SRNAMT
 53 *     ..
 54 *     .. Intrinsic Functions ..
 55       INTRINSIC          DBLE
 56 *     ..
 57 *     .. Executable Statements ..
 58 *
 59       NOUT = NUNIT
 60       WRITE( NOUT, FMT = * )
 61 *
 62 *     Set the variables to innocuous values.
 63 *
 64       DO 20 J = 1, NMAX
 65          DO 10 I = 1, NMAX
 66             A( I, J ) = 1.D0 / DBLE( I+J )
 67             AF( I, J ) = 1.D0 / DBLE( I+J )
 68    10    CONTINUE
 69          B( J ) = 0.D0
 70          R1( J ) = 0.D0
 71          R2( J ) = 0.D0
 72          W( J ) = 0.D0
 73          X( J ) = 0.D0
 74          C( J ) = 0.D0
 75          R( J ) = 0.D0
 76          IP( J ) = J
 77    20 CONTINUE
 78       OK = .TRUE.
 79 *
 80       SRNAMT = 'ZCGESV'
 81       INFOT = 1
 82       CALL ZCGESV(-1,0,A,1,IP,B,1,X,1,WORK,SWORK,RWORK,ITER,INFO)
 83       CALL CHKXER( 'ZCGESV', INFOT, NOUT, LERR, OK )
 84       INFOT = 2
 85       CALL ZCGESV(0,-1,A,1,IP,B,1,X,1,WORK,SWORK,RWORK,ITER,INFO)
 86       CALL CHKXER( 'ZCGESV', INFOT, NOUT, LERR, OK )
 87       INFOT = 4
 88       CALL ZCGESV(2,1,A,1,IP,B,2,X,2,WORK,SWORK,RWORK,ITER,INFO)
 89       CALL CHKXER( 'ZCGESV', INFOT, NOUT, LERR, OK )
 90       INFOT = 7
 91       CALL ZCGESV(2,1,A,2,IP,B,1,X,2,WORK,SWORK,RWORK,ITER,INFO)
 92       CALL CHKXER( 'ZCGESV', INFOT, NOUT, LERR, OK )
 93       INFOT = 9
 94       CALL ZCGESV(2,1,A,2,IP,B,2,X,1,WORK,SWORK,RWORK,ITER,INFO)
 95       CALL CHKXER( 'ZCGESV', INFOT, NOUT, LERR, OK )
 96 *
 97 *     Print a summary line.
 98 *
 99       IF( OK ) THEN
100          WRITE( NOUT, FMT = 9999 )'ZCGESV'
101       ELSE
102          WRITE( NOUT, FMT = 9998 )'ZCGESV'
103       END IF
104 *
105  9999 FORMAT1X, A6, ' drivers passed the tests of the error exits' )
106  9998 FORMAT' *** ', A6, ' drivers failed the tests of the error ',
107      $      'exits ***' )
108 *
109       RETURN
110 *
111 *     End of ZERRAB
112 *
113       END