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SUBROUTINE ZERRBD( PATH, NUNIT )
*
* -- LAPACK test routine (version 3.0) --
* Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd.,
* Courant Institute, Argonne National Lab, and Rice University
* December 22, 1999
*
* .. Scalar Arguments ..
CHARACTER*3 PATH
INTEGER NUNIT
* ..
*
* Purpose
* =======
*
* ZERRBD tests the error exits for ZGEBRD, ZUNGBR, ZUNMBR, and ZBDSQR.
*
* Arguments
* =========
*
* PATH (input) CHARACTER*3
* The LAPACK path name for the routines to be tested.
*
* NUNIT (input) INTEGER
* The unit number for output.
*
* =====================================================================
*
* .. Parameters ..
INTEGER NMAX, LW
PARAMETER ( NMAX = 4, LW = NMAX )
* ..
* .. Local Scalars ..
CHARACTER*2 C2
INTEGER I, INFO, J, NT
* ..
* .. Local Arrays ..
DOUBLE PRECISION D( NMAX ), E( NMAX ), RW( 4*NMAX )
COMPLEX*16 A( NMAX, NMAX ), TP( NMAX ), TQ( NMAX ),
$ U( NMAX, NMAX ), V( NMAX, NMAX ), W( LW )
* ..
* .. External Functions ..
LOGICAL LSAMEN
EXTERNAL LSAMEN
* ..
* .. External Subroutines ..
EXTERNAL CHKXER, ZBDSQR, ZGEBRD, ZUNGBR, ZUNMBR
* ..
* .. Scalars in Common ..
LOGICAL LERR, OK
CHARACTER*6 SRNAMT
INTEGER INFOT, NOUT
* ..
* .. Common blocks ..
COMMON / INFOC / INFOT, NOUT, OK, LERR
COMMON / SRNAMC / SRNAMT
* ..
* .. Intrinsic Functions ..
INTRINSIC DBLE
* ..
* .. Executable Statements ..
*
NOUT = NUNIT
WRITE( NOUT, FMT = * )
C2 = PATH( 2: 3 )
*
* Set the variables to innocuous values.
*
DO 20 J = 1, NMAX
DO 10 I = 1, NMAX
A( I, J ) = 1.D0 / DBLE( I+J )
10 CONTINUE
20 CONTINUE
OK = .TRUE.
NT = 0
*
* Test error exits of the SVD routines.
*
IF( LSAMEN( 2, C2, 'BD' ) ) THEN
*
* ZGEBRD
*
SRNAMT = 'ZGEBRD'
INFOT = 1
CALL ZGEBRD( -1, 0, A, 1, D, E, TQ, TP, W, 1, INFO )
CALL CHKXER( 'ZGEBRD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL ZGEBRD( 0, -1, A, 1, D, E, TQ, TP, W, 1, INFO )
CALL CHKXER( 'ZGEBRD', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL ZGEBRD( 2, 1, A, 1, D, E, TQ, TP, W, 2, INFO )
CALL CHKXER( 'ZGEBRD', INFOT, NOUT, LERR, OK )
INFOT = 10
CALL ZGEBRD( 2, 1, A, 2, D, E, TQ, TP, W, 1, INFO )
CALL CHKXER( 'ZGEBRD', INFOT, NOUT, LERR, OK )
NT = NT + 4
*
* ZUNGBR
*
SRNAMT = 'ZUNGBR'
INFOT = 1
CALL ZUNGBR( '/', 0, 0, 0, A, 1, TQ, W, 1, INFO )
CALL CHKXER( 'ZUNGBR', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL ZUNGBR( 'Q', -1, 0, 0, A, 1, TQ, W, 1, INFO )
CALL CHKXER( 'ZUNGBR', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL ZUNGBR( 'Q', 0, -1, 0, A, 1, TQ, W, 1, INFO )
CALL CHKXER( 'ZUNGBR', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL ZUNGBR( 'Q', 0, 1, 0, A, 1, TQ, W, 1, INFO )
CALL CHKXER( 'ZUNGBR', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL ZUNGBR( 'Q', 1, 0, 1, A, 1, TQ, W, 1, INFO )
CALL CHKXER( 'ZUNGBR', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL ZUNGBR( 'P', 1, 0, 0, A, 1, TQ, W, 1, INFO )
CALL CHKXER( 'ZUNGBR', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL ZUNGBR( 'P', 0, 1, 1, A, 1, TQ, W, 1, INFO )
CALL CHKXER( 'ZUNGBR', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL ZUNGBR( 'Q', 0, 0, -1, A, 1, TQ, W, 1, INFO )
CALL CHKXER( 'ZUNGBR', INFOT, NOUT, LERR, OK )
INFOT = 6
CALL ZUNGBR( 'Q', 2, 1, 1, A, 1, TQ, W, 1, INFO )
CALL CHKXER( 'ZUNGBR', INFOT, NOUT, LERR, OK )
INFOT = 9
CALL ZUNGBR( 'Q', 2, 2, 1, A, 2, TQ, W, 1, INFO )
CALL CHKXER( 'ZUNGBR', INFOT, NOUT, LERR, OK )
NT = NT + 10
*
* ZUNMBR
*
SRNAMT = 'ZUNMBR'
INFOT = 1
CALL ZUNMBR( '/', 'L', 'T', 0, 0, 0, A, 1, TQ, U, 1, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL ZUNMBR( 'Q', '/', 'T', 0, 0, 0, A, 1, TQ, U, 1, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL ZUNMBR( 'Q', 'L', '/', 0, 0, 0, A, 1, TQ, U, 1, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL ZUNMBR( 'Q', 'L', 'C', -1, 0, 0, A, 1, TQ, U, 1, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL ZUNMBR( 'Q', 'L', 'C', 0, -1, 0, A, 1, TQ, U, 1, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 6
CALL ZUNMBR( 'Q', 'L', 'C', 0, 0, -1, A, 1, TQ, U, 1, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 8
CALL ZUNMBR( 'Q', 'L', 'C', 2, 0, 0, A, 1, TQ, U, 2, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 8
CALL ZUNMBR( 'Q', 'R', 'C', 0, 2, 0, A, 1, TQ, U, 1, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 8
CALL ZUNMBR( 'P', 'L', 'C', 2, 0, 2, A, 1, TQ, U, 2, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 8
CALL ZUNMBR( 'P', 'R', 'C', 0, 2, 2, A, 1, TQ, U, 1, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL ZUNMBR( 'Q', 'R', 'C', 2, 0, 0, A, 1, TQ, U, 1, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 13
CALL ZUNMBR( 'Q', 'L', 'C', 0, 2, 0, A, 1, TQ, U, 1, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
INFOT = 13
CALL ZUNMBR( 'Q', 'R', 'C', 2, 0, 0, A, 1, TQ, U, 2, W, 1,
$ INFO )
CALL CHKXER( 'ZUNMBR', INFOT, NOUT, LERR, OK )
NT = NT + 13
*
* ZBDSQR
*
SRNAMT = 'ZBDSQR'
INFOT = 1
CALL ZBDSQR( '/', 0, 0, 0, 0, D, E, V, 1, U, 1, A, 1, RW,
$ INFO )
CALL CHKXER( 'ZBDSQR', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL ZBDSQR( 'U', -1, 0, 0, 0, D, E, V, 1, U, 1, A, 1, RW,
$ INFO )
CALL CHKXER( 'ZBDSQR', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL ZBDSQR( 'U', 0, -1, 0, 0, D, E, V, 1, U, 1, A, 1, RW,
$ INFO )
CALL CHKXER( 'ZBDSQR', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL ZBDSQR( 'U', 0, 0, -1, 0, D, E, V, 1, U, 1, A, 1, RW,
$ INFO )
CALL CHKXER( 'ZBDSQR', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL ZBDSQR( 'U', 0, 0, 0, -1, D, E, V, 1, U, 1, A, 1, RW,
$ INFO )
CALL CHKXER( 'ZBDSQR', INFOT, NOUT, LERR, OK )
INFOT = 9
CALL ZBDSQR( 'U', 2, 1, 0, 0, D, E, V, 1, U, 1, A, 1, RW,
$ INFO )
CALL CHKXER( 'ZBDSQR', INFOT, NOUT, LERR, OK )
INFOT = 11
CALL ZBDSQR( 'U', 0, 0, 2, 0, D, E, V, 1, U, 1, A, 1, RW,
$ INFO )
CALL CHKXER( 'ZBDSQR', INFOT, NOUT, LERR, OK )
INFOT = 13
CALL ZBDSQR( 'U', 2, 0, 0, 1, D, E, V, 1, U, 1, A, 1, RW,
$ INFO )
CALL CHKXER( 'ZBDSQR', INFOT, NOUT, LERR, OK )
NT = NT + 8
END IF
*
* Print a summary line.
*
IF( OK ) THEN
WRITE( NOUT, FMT = 9999 )PATH, NT
ELSE
WRITE( NOUT, FMT = 9998 )PATH
END IF
*
9999 FORMAT( 1X, A3, ' routines passed the tests of the error exits (',
$ I3, ' tests done)' )
9998 FORMAT( ' *** ', A3, ' routines failed the tests of the error ',
$ 'exits ***' )
*
RETURN
*
* End of ZERRBD
*
END
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