OpenBLAS/lapack-netlib/TESTING/LIN/zerrhe.f

*> \brief \b ZERRHE
*
*  =========== DOCUMENTATION ===========
*
* Online html documentation available at
*            http://www.netlib.org/lapack/explore-html/
*
*  Definition:
*  ===========
*
*       SUBROUTINE ZERRHE( PATH, NUNIT )
*
*       .. Scalar Arguments ..
*       CHARACTER*3        PATH
*       INTEGER            NUNIT
*       ..
*
*
*> \par Purpose:
*  =============
*>
*> \verbatim
*>
*> ZERRHE tests the error exits for the COMPLEX*16 routines
*> for Hermitian indefinite matrices.
*> \endverbatim
*
*  Arguments:
*  ==========
*
*> \param[in] PATH
*> \verbatim
*>          PATH is CHARACTER*3
*>          The LAPACK path name for the routines to be tested.
*> \endverbatim
*>
*> \param[in] NUNIT
*> \verbatim
*>          NUNIT is INTEGER
*>          The unit number for output.
*> \endverbatim
*
*  Authors:
*  ========
*
*> \author Univ. of Tennessee
*> \author Univ. of California Berkeley
*> \author Univ. of Colorado Denver
*> \author NAG Ltd.
*
*> \ingroup complex16_lin
*
*  =====================================================================
      SUBROUTINE ZERRHE( PATH, NUNIT )
*
*  -- LAPACK test routine --
*  -- LAPACK is a software package provided by Univ. of Tennessee,    --
*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
*
*     .. Scalar Arguments ..
      CHARACTER*3        PATH
      INTEGER            NUNIT
*     ..
*
*  =====================================================================
*
*
*     .. Parameters ..
      INTEGER            NMAX
      PARAMETER          ( NMAX = 4 )
*     ..
*     .. Local Scalars ..
      CHARACTER*2        C2
      INTEGER            I, INFO, J
      DOUBLE PRECISION   ANRM, RCOND
*     ..
*     .. Local Arrays ..
      INTEGER            IP( NMAX )
      DOUBLE PRECISION   R( NMAX ), R1( NMAX ), R2( NMAX )
      COMPLEX*16         A( NMAX, NMAX ), AF( NMAX, NMAX ), B( NMAX ),
     $                   E( NMAX ), W( 2*NMAX ), X( NMAX )
*     ..
*     .. External Functions ..
      LOGICAL            LSAMEN
      EXTERNAL           LSAMEN
*     ..
*     .. External Subroutines ..
      EXTERNAL           ALAESM, CHKXER, ZHECON, ZHECON_3, ZHECON_ROOK,
     $                   ZHERFS, ZHETF2, ZHETF2_RK, ZHETF2_ROOK, ZHETRF,
     $                   ZHETRF_RK, ZHETRF_ROOK, ZHETRF_AA, 
     $                   ZHETRF_AA_2STAGE, ZHETRI,
     $                   ZHETRI_3, ZHETRI_3X, ZHETRI_ROOK, ZHETRI2,
     $                   ZHETRI2X, ZHETRS, ZHETRS_3, ZHETRS_ROOK,
     $                   ZHETRS_AA, ZHETRS_AA_2STAGE, ZHPCON, ZHPRFS,
     $                   ZHPTRF, ZHPTRI, ZHPTRS
*     ..
*     .. Scalars in Common ..
      LOGICAL            LERR, OK
      CHARACTER*32       SRNAMT
      INTEGER            INFOT, NOUT
*     ..
*     .. Common blocks ..
      COMMON             / INFOC / INFOT, NOUT, OK, LERR
      COMMON             / SRNAMC / SRNAMT
*     ..
*     .. Intrinsic Functions ..
      INTRINSIC          DBLE, DCMPLX
*     ..
*     .. 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 ) = DCMPLX( 1.D0 / DBLE( I+J ),
     $                  -1.D0 / DBLE( I+J ) )
            AF( I, J ) = DCMPLX( 1.D0 / DBLE( I+J ),
     $                   -1.D0 / DBLE( I+J ) )
   10    CONTINUE
         B( J ) = 0.D0
         E( J ) = 0.D0
         R1( J ) = 0.D0
         R2( J ) = 0.D0
         W( J ) = 0.D0
         X( J ) = 0.D0
         IP( J ) = J
   20 CONTINUE
      ANRM = 1.0D0
      OK = .TRUE.
*
      IF( LSAMEN( 2, C2, 'HE' ) ) THEN
*
*        Test error exits of the routines that use factorization
*        of a Hermitian indefinite matrix with partial
*        (Bunch-Kaufman) diagonal pivoting method.
*
*        ZHETRF
*
         SRNAMT = 'ZHETRF'
         INFOT = 1
         CALL ZHETRF( '/', 0, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRF', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRF( 'U', -1, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRF', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRF( 'U', 2, A, 1, IP, W, 4, INFO )
         CALL CHKXER( 'ZHETRF', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZHETRF( 'U', 0, A, 1, IP, W, 0, INFO )
         CALL CHKXER( 'ZHETRF', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZHETRF( 'U', 0, A, 1, IP, W, -2, INFO )
         CALL CHKXER( 'ZHETRF', INFOT, NOUT, LERR, OK )
*
*        ZHETF2
*
         SRNAMT = 'ZHETF2'
         INFOT = 1
         CALL ZHETF2( '/', 0, A, 1, IP, INFO )
         CALL CHKXER( 'ZHETF2', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETF2( 'U', -1, A, 1, IP, INFO )
         CALL CHKXER( 'ZHETF2', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETF2( 'U', 2, A, 1, IP, INFO )
         CALL CHKXER( 'ZHETF2', INFOT, NOUT, LERR, OK )
*
*        ZHETRI
*
         SRNAMT = 'ZHETRI'
         INFOT = 1
         CALL ZHETRI( '/', 0, A, 1, IP, W, INFO )
         CALL CHKXER( 'ZHETRI', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRI( 'U', -1, A, 1, IP, W, INFO )
         CALL CHKXER( 'ZHETRI', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRI( 'U', 2, A, 1, IP, W, INFO )
         CALL CHKXER( 'ZHETRI', INFOT, NOUT, LERR, OK )
*
*        ZHETRI2
*
         SRNAMT = 'ZHETRI2'
         INFOT = 1
         CALL ZHETRI2( '/', 0, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI2', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRI2( 'U', -1, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI2', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRI2( 'U', 2, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI2', INFOT, NOUT, LERR, OK )
*
*        ZHETRI2X
*
         SRNAMT = 'ZHETRI2X'
         INFOT = 1
         CALL ZHETRI2X( '/', 0, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI2X', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRI2X( 'U', -1, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI2X', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRI2X( 'U', 2, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI2X', INFOT, NOUT, LERR, OK )
*
*        ZHETRS
*
         SRNAMT = 'ZHETRS'
         INFOT = 1
         CALL ZHETRS( '/', 0, 0, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRS( 'U', -1, 0, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL ZHETRS( 'U', 0, -1, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS', INFOT, NOUT, LERR, OK )
         INFOT = 5
         CALL ZHETRS( 'U', 2, 1, A, 1, IP, B, 2, INFO )
         CALL CHKXER( 'ZHETRS', INFOT, NOUT, LERR, OK )
         INFOT = 8
         CALL ZHETRS( 'U', 2, 1, A, 2, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS', INFOT, NOUT, LERR, OK )
*
*        ZHERFS
*
         SRNAMT = 'ZHERFS'
         INFOT = 1
         CALL ZHERFS( '/', 0, 0, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2, W,
     $                R, INFO )
         CALL CHKXER( 'ZHERFS', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHERFS( 'U', -1, 0, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2,
     $                W, R, INFO )
         CALL CHKXER( 'ZHERFS', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL ZHERFS( 'U', 0, -1, A, 1, AF, 1, IP, B, 1, X, 1, R1, R2,
     $                W, R, INFO )
         CALL CHKXER( 'ZHERFS', INFOT, NOUT, LERR, OK )
         INFOT = 5
         CALL ZHERFS( 'U', 2, 1, A, 1, AF, 2, IP, B, 2, X, 2, R1, R2, W,
     $                R, INFO )
         CALL CHKXER( 'ZHERFS', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZHERFS( 'U', 2, 1, A, 2, AF, 1, IP, B, 2, X, 2, R1, R2, W,
     $                R, INFO )
         CALL CHKXER( 'ZHERFS', INFOT, NOUT, LERR, OK )
         INFOT = 10
         CALL ZHERFS( 'U', 2, 1, A, 2, AF, 2, IP, B, 1, X, 2, R1, R2, W,
     $                R, INFO )
         CALL CHKXER( 'ZHERFS', INFOT, NOUT, LERR, OK )
         INFOT = 12
         CALL ZHERFS( 'U', 2, 1, A, 2, AF, 2, IP, B, 2, X, 1, R1, R2, W,
     $                R, INFO )
         CALL CHKXER( 'ZHERFS', INFOT, NOUT, LERR, OK )
*
*        ZHECON
*
         SRNAMT = 'ZHECON'
         INFOT = 1
         CALL ZHECON( '/', 0, A, 1, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHECON( 'U', -1, A, 1, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHECON( 'U', 2, A, 1, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON', INFOT, NOUT, LERR, OK )
         INFOT = 6
         CALL ZHECON( 'U', 1, A, 1, IP, -ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON', INFOT, NOUT, LERR, OK )
*
      ELSE IF( LSAMEN( 2, C2, 'HR' ) ) THEN
*
*        Test error exits of the routines that use factorization
*        of a Hermitian indefinite matrix with rook
*        (bounded Bunch-Kaufman) diagonal pivoting method.
*
*        ZHETRF_ROOK
*
         SRNAMT = 'ZHETRF_ROOK'
         INFOT = 1
         CALL ZHETRF_ROOK( '/', 0, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRF_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRF_ROOK( 'U', -1, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRF_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRF_ROOK( 'U', 2, A, 1, IP, W, 4, INFO )
         CALL CHKXER( 'ZHETRF_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZHETRF_ROOK( 'U', 0, A, 1, IP, W, 0, INFO )
         CALL CHKXER( 'ZHETRF_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZHETRF_ROOK( 'U', 0, A, 1, IP, W, -2, INFO )
         CALL CHKXER( 'ZHETRF_ROOK', INFOT, NOUT, LERR, OK )
*
*        ZHETF2_ROOK
*
         SRNAMT = 'ZHETF2_ROOK'
         INFOT = 1
         CALL ZHETF2_ROOK( '/', 0, A, 1, IP, INFO )
         CALL CHKXER( 'ZHETF2_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETF2_ROOK( 'U', -1, A, 1, IP, INFO )
         CALL CHKXER( 'ZHETF2_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETF2_ROOK( 'U', 2, A, 1, IP, INFO )
         CALL CHKXER( 'ZHETF2_ROOK', INFOT, NOUT, LERR, OK )
*
*        ZHETRI_ROOK
*
         SRNAMT = 'ZHETRI_ROOK'
         INFOT = 1
         CALL ZHETRI_ROOK( '/', 0, A, 1, IP, W, INFO )
         CALL CHKXER( 'ZHETRI_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRI_ROOK( 'U', -1, A, 1, IP, W, INFO )
         CALL CHKXER( 'ZHETRI_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRI_ROOK( 'U', 2, A, 1, IP, W, INFO )
         CALL CHKXER( 'ZHETRI_ROOK', INFOT, NOUT, LERR, OK )
*
*        ZHETRS_ROOK
*
         SRNAMT = 'ZHETRS_ROOK'
         INFOT = 1
         CALL ZHETRS_ROOK( '/', 0, 0, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRS_ROOK( 'U', -1, 0, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL ZHETRS_ROOK( 'U', 0, -1, A, 1, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 5
         CALL ZHETRS_ROOK( 'U', 2, 1, A, 1, IP, B, 2, INFO )
         CALL CHKXER( 'ZHETRS_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 8
         CALL ZHETRS_ROOK( 'U', 2, 1, A, 2, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS_ROOK', INFOT, NOUT, LERR, OK )
*
*        ZHECON_ROOK
*
         SRNAMT = 'ZHECON_ROOK'
         INFOT = 1
         CALL ZHECON_ROOK( '/', 0, A, 1, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHECON_ROOK( 'U', -1, A, 1, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHECON_ROOK( 'U', 2, A, 1, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON_ROOK', INFOT, NOUT, LERR, OK )
         INFOT = 6
         CALL ZHECON_ROOK( 'U', 1, A, 1, IP, -ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON_ROOK', INFOT, NOUT, LERR, OK )
*
      ELSE IF( LSAMEN( 2, C2, 'HK' ) ) THEN
*
*        Test error exits of the routines that use factorization
*        of a symmetric indefinite matrix with rook
*        (bounded Bunch-Kaufman) pivoting with the new storage
*        format for factors L ( or U) and D.
*
*        L (or U) is stored in A, diagonal of D is stored on the
*        diagonal of A, subdiagonal of D is stored in a separate array E.
*
*        ZHETRF_RK
*
         SRNAMT = 'ZHETRF_RK'
         INFOT = 1
         CALL ZHETRF_RK( '/', 0, A, 1, E, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRF_RK', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRF_RK( 'U', -1, A, 1, E, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRF_RK', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRF_RK( 'U', 2, A, 1, E, IP, W, 4, INFO )
         CALL CHKXER( 'ZHETRF_RK', INFOT, NOUT, LERR, OK )
         INFOT = 8
         CALL ZHETRF_RK( 'U', 0, A, 1, E, IP, W, 0, INFO )
         CALL CHKXER( 'ZHETRF_RK', INFOT, NOUT, LERR, OK )
         INFOT = 8
         CALL ZHETRF_RK( 'U', 0, A, 1, E, IP, W, -2, INFO )
         CALL CHKXER( 'ZHETRF_RK', INFOT, NOUT, LERR, OK )
*
*        ZHETF2_RK
*
         SRNAMT = 'ZHETF2_RK'
         INFOT = 1
         CALL ZHETF2_RK( '/', 0, A, 1, E, IP, INFO )
         CALL CHKXER( 'ZHETF2_RK', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETF2_RK( 'U', -1, A, 1, E, IP, INFO )
         CALL CHKXER( 'ZHETF2_RK', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETF2_RK( 'U', 2, A, 1, E, IP, INFO )
         CALL CHKXER( 'ZHETF2_RK', INFOT, NOUT, LERR, OK )
*
*        ZHETRI_3
*
         SRNAMT = 'ZHETRI_3'
         INFOT = 1
         CALL ZHETRI_3( '/', 0, A, 1, E, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI_3', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRI_3( 'U', -1, A, 1, E, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI_3', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRI_3( 'U', 2, A, 1, E, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI_3', INFOT, NOUT, LERR, OK )
         INFOT = 8
         CALL ZHETRI_3( 'U', 0, A, 1, E, IP, W, 0, INFO )
         CALL CHKXER( 'ZHETRI_3', INFOT, NOUT, LERR, OK )
         INFOT = 8
         CALL ZHETRI_3( 'U', 0, A, 1, E, IP, W, -2, INFO )
         CALL CHKXER( 'ZHETRI_3', INFOT, NOUT, LERR, OK )
*
*        ZHETRI_3X
*
         SRNAMT = 'ZHETRI_3X'
         INFOT = 1
         CALL ZHETRI_3X( '/', 0, A, 1, E, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI_3X', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRI_3X( 'U', -1, A, 1, E, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI_3X', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRI_3X( 'U', 2, A, 1, E, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRI_3X', INFOT, NOUT, LERR, OK )
*
*        ZHETRS_3
*
         SRNAMT = 'ZHETRS_3'
         INFOT = 1
         CALL ZHETRS_3( '/', 0, 0, A, 1, E, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS_3', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRS_3( 'U', -1, 0, A, 1, E, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS_3', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL ZHETRS_3( 'U', 0, -1, A, 1, E, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS_3', INFOT, NOUT, LERR, OK )
         INFOT = 5
         CALL ZHETRS_3( 'U', 2, 1, A, 1, E, IP, B, 2, INFO )
         CALL CHKXER( 'ZHETRS_3', INFOT, NOUT, LERR, OK )
         INFOT = 9
         CALL ZHETRS_3( 'U', 2, 1, A, 2, E, IP, B, 1, INFO )
         CALL CHKXER( 'ZHETRS_3', INFOT, NOUT, LERR, OK )
*
*        ZHECON_3
*
         SRNAMT = 'ZHECON_3'
         INFOT = 1
         CALL ZHECON_3( '/', 0, A, 1,  E, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON_3', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHECON_3( 'U', -1, A, 1, E, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON_3', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHECON_3( 'U', 2, A, 1, E, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHECON_3', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZHECON_3( 'U', 1, A, 1, E, IP, -1.0D0, RCOND, W, INFO)
         CALL CHKXER( 'ZHECON_3', INFOT, NOUT, LERR, OK )
*
*        Test error exits of the routines that use factorization
*        of a Hermitian indefinite matrix with Aasen's algorithm.
*
      ELSE IF( LSAMEN( 2, C2, 'HA' ) ) THEN
*
*        ZHETRF_AA
*
         SRNAMT = 'ZHETRF_AA'
         INFOT = 1
         CALL ZHETRF_AA( '/', 0, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRF_AA', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRF_AA( 'U', -1, A, 1, IP, W, 1, INFO )
         CALL CHKXER( 'ZHETRF_AA', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRF_AA( 'U', 2, A, 1, IP, W, 4, INFO )
         CALL CHKXER( 'ZHETRF_AA', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZHETRF_AA( 'U', 0, A, 1, IP, W, 0, INFO )
         CALL CHKXER( 'ZHETRF_AA', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZHETRF_AA( 'U', 0, A, 1, IP, W, -2, INFO )
         CALL CHKXER( 'ZHETRF_AA', INFOT, NOUT, LERR, OK )
*
*        ZHETRS_AA
*
         SRNAMT = 'ZHETRS_AA'
         INFOT = 1
         CALL ZHETRS_AA( '/', 0, 0, A, 1, IP, B, 1, W, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRS_AA( 'U', -1, 0, A, 1, IP, B, 1, W, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL ZHETRS_AA( 'U', 0, -1, A, 1, IP, B, 1, W, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA', INFOT, NOUT, LERR, OK )
         INFOT = 5
         CALL ZHETRS_AA( 'U', 2, 1, A, 1, IP, B, 2, W, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA', INFOT, NOUT, LERR, OK )
         INFOT = 8
         CALL ZHETRS_AA( 'U', 2, 1, A, 2, IP, B, 1, W, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA', INFOT, NOUT, LERR, OK )
         INFOT = 10
         CALL ZHETRS_AA( 'U', 0, 1, A, 1, IP, B, 1, W, 0, INFO )
         CALL CHKXER( 'ZHETRS_AA', INFOT, NOUT, LERR, OK )
         INFOT = 10
         CALL ZHETRS_AA( 'U', 0, 1, A, 1, IP, B, 1, W, -2, INFO )
         CALL CHKXER( 'ZHETRS_AA', INFOT, NOUT, LERR, OK )
*        
      ELSE IF( LSAMEN( 2, C2, 'S2' ) ) THEN
*
*        Test error exits of the routines that use factorization
*        of a symmetric indefinite matrix with Aasen's algorithm.
*
*        ZHETRF_AA_2STAGE
*
         SRNAMT = 'ZHETRF_AA_2STAGE'
         INFOT = 1
         CALL ZHETRF_AA_2STAGE( '/', 0, A, 1, A, 1, IP, IP, W, 1,
     $                          INFO )
         CALL CHKXER( 'ZHETRF_AA_2STAGE', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRF_AA_2STAGE( 'U', -1, A, 1, A, 1, IP, IP, W, 1,
     $                           INFO )
         CALL CHKXER( 'ZHETRF_AA_2STAGE', INFOT, NOUT, LERR, OK )
         INFOT = 4
         CALL ZHETRF_AA_2STAGE( 'U', 2, A, 1, A, 2, IP, IP, W, 1,
     $                           INFO )
         CALL CHKXER( 'ZHETRF_AA_2STAGE', INFOT, NOUT, LERR, OK )
         INFOT = 6
         CALL ZHETRF_AA_2STAGE( 'U', 2, A, 2, A, 1, IP, IP, W, 1,
     $                           INFO )
         CALL CHKXER( 'ZHETRF_AA_2STAGE', INFOT, NOUT, LERR, OK )
         INFOT = 10
         CALL ZHETRF_AA_2STAGE( 'U', 2, A, 2, A, 8, IP, IP, W, 0,
     $                           INFO )
         CALL CHKXER( 'ZHETRF_AA_2STAGE', INFOT, NOUT, LERR, OK )
*
*        ZHETRS_AA_2STAGE
*
         SRNAMT = 'ZHETRS_AA_2STAGE'
         INFOT = 1
         CALL ZHETRS_AA_2STAGE( '/', 0, 0, A, 1, A, 1, IP, IP,
     $                          B, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA_2STAGE', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHETRS_AA_2STAGE( 'U', -1, 0, A, 1, A, 1, IP, IP,
     $                          B, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA_2STAGE', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL ZHETRS_AA_2STAGE( 'U', 0, -1, A, 1, A, 1, IP, IP,
     $                          B, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA_2STAGE', INFOT, NOUT, LERR, OK )
         INFOT = 5
         CALL ZHETRS_AA_2STAGE( 'U', 2, 1, A, 1, A, 1, IP, IP,
     $                          B, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA_2STAGE', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZHETRS_AA_2STAGE( 'U', 2, 1, A, 2, A, 1, IP, IP,
     $                          B, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA_2STAGE', INFOT, NOUT, LERR, OK )
         INFOT = 11
         CALL ZHETRS_AA_2STAGE( 'U', 2, 1, A, 2, A, 8, IP, IP,
     $                          B, 1, INFO )
         CALL CHKXER( 'ZHETRS_AA_STAGE', INFOT, NOUT, LERR, OK )
*
      ELSE IF( LSAMEN( 2, C2, 'HP' ) ) THEN
*
*        Test error exits of the routines that use factorization
*        of a Hermitian indefinite packed matrix with partial
*        (Bunch-Kaufman) diagonal pivoting method.
*
*        ZHPTRF
*
         SRNAMT = 'ZHPTRF'
         INFOT = 1
         CALL ZHPTRF( '/', 0, A, IP, INFO )
         CALL CHKXER( 'ZHPTRF', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHPTRF( 'U', -1, A, IP, INFO )
         CALL CHKXER( 'ZHPTRF', INFOT, NOUT, LERR, OK )
*
*        ZHPTRI
*
         SRNAMT = 'ZHPTRI'
         INFOT = 1
         CALL ZHPTRI( '/', 0, A, IP, W, INFO )
         CALL CHKXER( 'ZHPTRI', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHPTRI( 'U', -1, A, IP, W, INFO )
         CALL CHKXER( 'ZHPTRI', INFOT, NOUT, LERR, OK )
*
*        ZHPTRS
*
         SRNAMT = 'ZHPTRS'
         INFOT = 1
         CALL ZHPTRS( '/', 0, 0, A, IP, B, 1, INFO )
         CALL CHKXER( 'ZHPTRS', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHPTRS( 'U', -1, 0, A, IP, B, 1, INFO )
         CALL CHKXER( 'ZHPTRS', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL ZHPTRS( 'U', 0, -1, A, IP, B, 1, INFO )
         CALL CHKXER( 'ZHPTRS', INFOT, NOUT, LERR, OK )
         INFOT = 7
         CALL ZHPTRS( 'U', 2, 1, A, IP, B, 1, INFO )
         CALL CHKXER( 'ZHPTRS', INFOT, NOUT, LERR, OK )
*
*        ZHPRFS
*
         SRNAMT = 'ZHPRFS'
         INFOT = 1
         CALL ZHPRFS( '/', 0, 0, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
     $                INFO )
         CALL CHKXER( 'ZHPRFS', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHPRFS( 'U', -1, 0, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
     $                INFO )
         CALL CHKXER( 'ZHPRFS', INFOT, NOUT, LERR, OK )
         INFOT = 3
         CALL ZHPRFS( 'U', 0, -1, A, AF, IP, B, 1, X, 1, R1, R2, W, R,
     $                INFO )
         CALL CHKXER( 'ZHPRFS', INFOT, NOUT, LERR, OK )
         INFOT = 8
         CALL ZHPRFS( 'U', 2, 1, A, AF, IP, B, 1, X, 2, R1, R2, W, R,
     $                INFO )
         CALL CHKXER( 'ZHPRFS', INFOT, NOUT, LERR, OK )
         INFOT = 10
         CALL ZHPRFS( 'U', 2, 1, A, AF, IP, B, 2, X, 1, R1, R2, W, R,
     $                INFO )
         CALL CHKXER( 'ZHPRFS', INFOT, NOUT, LERR, OK )
*
*        ZHPCON
*
         SRNAMT = 'ZHPCON'
         INFOT = 1
         CALL ZHPCON( '/', 0, A, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHPCON', INFOT, NOUT, LERR, OK )
         INFOT = 2
         CALL ZHPCON( 'U', -1, A, IP, ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHPCON', INFOT, NOUT, LERR, OK )
         INFOT = 5
         CALL ZHPCON( 'U', 1, A, IP, -ANRM, RCOND, W, INFO )
         CALL CHKXER( 'ZHPCON', INFOT, NOUT, LERR, OK )
      END IF
*
*     Print a summary line.
*
      CALL ALAESM( PATH, OK, NOUT )
*
      RETURN
*
*     End of ZERRHE
*
      END