323 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Fortran
		
	
	
	
			
		
		
	
	
			323 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Fortran
		
	
	
	
*> \brief \b SERREC
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*
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*  =========== DOCUMENTATION ===========
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*
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* Online html documentation available at
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*            http://www.netlib.org/lapack/explore-html/
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*
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*  Definition:
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*  ===========
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*
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*       SUBROUTINE SERREC( PATH, NUNIT )
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*
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*       .. Scalar Arguments ..
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*       CHARACTER*3        PATH
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*       INTEGER            NUNIT
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*       ..
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*
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*
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*> \par Purpose:
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*  =============
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*>
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*> \verbatim
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*>
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*> SERREC tests the error exits for the routines for eigen- condition
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*> estimation for REAL matrices:
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*>    STRSYL, STRSYL3, STREXC, STRSNA and STRSEN.
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*> \endverbatim
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*
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*  Arguments:
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*  ==========
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*
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*> \param[in] PATH
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*> \verbatim
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*>          PATH is CHARACTER*3
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*>          The LAPACK path name for the routines to be tested.
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*> \endverbatim
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*>
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*> \param[in] NUNIT
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*> \verbatim
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*>          NUNIT is INTEGER
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*>          The unit number for output.
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*> \endverbatim
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*
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*  Authors:
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*  ========
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*
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*> \author Univ. of Tennessee
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*> \author Univ. of California Berkeley
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*> \author Univ. of Colorado Denver
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*> \author NAG Ltd.
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*
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*> \ingroup single_eig
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*
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*  =====================================================================
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      SUBROUTINE SERREC( PATH, NUNIT )
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*
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*  -- LAPACK test routine --
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*  -- LAPACK is a software package provided by Univ. of Tennessee,    --
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*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
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*
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*     .. Scalar Arguments ..
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      CHARACTER*3        PATH
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      INTEGER            NUNIT
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*     ..
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*
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*  =====================================================================
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*
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*     .. Parameters ..
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      INTEGER            NMAX
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      REAL               ONE, ZERO
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      PARAMETER          ( NMAX = 4, ONE = 1.0E0, ZERO = 0.0E0 )
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*     ..
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*     .. Local Scalars ..
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      INTEGER            I, IFST, ILST, INFO, J, M, NT
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      REAL               SCALE
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*     ..
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*     .. Local Arrays ..
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      LOGICAL            SEL( NMAX )
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      INTEGER            IWORK( NMAX )
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      REAL               A( NMAX, NMAX ), B( NMAX, NMAX ),
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     $                   C( NMAX, NMAX ), S( NMAX ), SEP( NMAX ),
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     $                   WI( NMAX ), WORK( NMAX ), WR( NMAX )
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*     ..
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*     .. External Subroutines ..
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      EXTERNAL           CHKXER, STREXC, STRSEN, STRSNA, STRSYL, STRSYL3
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*     ..
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*     .. Scalars in Common ..
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      LOGICAL            LERR, OK
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      CHARACTER*32       SRNAMT
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      INTEGER            INFOT, NOUT
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*     ..
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*     .. Common blocks ..
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      COMMON             / INFOC / INFOT, NOUT, OK, LERR
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      COMMON             / SRNAMC / SRNAMT
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*     ..
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*     .. Executable Statements ..
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*
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      NOUT = NUNIT
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      OK = .TRUE.
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      NT = 0
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*
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*     Initialize A, B and SEL
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*
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      DO 20 J = 1, NMAX
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         DO 10 I = 1, NMAX
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            A( I, J ) = ZERO
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            B( I, J ) = ZERO
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   10    CONTINUE
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   20 CONTINUE
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      DO 30 I = 1, NMAX
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         A( I, I ) = ONE
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         SEL( I ) = .TRUE.
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   30 CONTINUE
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*
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*     Test STRSYL
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*
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      SRNAMT = 'STRSYL'
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      INFOT = 1
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      CALL STRSYL( 'X', 'N', 1, 0, 0, A, 1, B, 1, C, 1, SCALE, INFO )
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      CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK )
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      INFOT = 2
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      CALL STRSYL( 'N', 'X', 1, 0, 0, A, 1, B, 1, C, 1, SCALE, INFO )
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      CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK )
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      INFOT = 3
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      CALL STRSYL( 'N', 'N', 0, 0, 0, A, 1, B, 1, C, 1, SCALE, INFO )
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      CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK )
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      INFOT = 4
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      CALL STRSYL( 'N', 'N', 1, -1, 0, A, 1, B, 1, C, 1, SCALE, INFO )
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      CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK )
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      INFOT = 5
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      CALL STRSYL( 'N', 'N', 1, 0, -1, A, 1, B, 1, C, 1, SCALE, INFO )
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      CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK )
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      INFOT = 7
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      CALL STRSYL( 'N', 'N', 1, 2, 0, A, 1, B, 1, C, 2, SCALE, INFO )
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      CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK )
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      INFOT = 9
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      CALL STRSYL( 'N', 'N', 1, 0, 2, A, 1, B, 1, C, 1, SCALE, INFO )
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      CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK )
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      INFOT = 11
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      CALL STRSYL( 'N', 'N', 1, 2, 0, A, 2, B, 1, C, 1, SCALE, INFO )
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      CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK )
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      NT = NT + 8
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*
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*     Test STRSYL3
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*
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      SRNAMT = 'STRSYL3'
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      INFOT = 1
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      CALL STRSYL3( 'X', 'N', 1, 0, 0, A, 1, B, 1, C, 1, SCALE,
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     $              IWORK, NMAX, WORK, NMAX, INFO )
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      CALL CHKXER( 'STRSYL3', INFOT, NOUT, LERR, OK )
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      INFOT = 2
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      CALL STRSYL3( 'N', 'X', 1, 0, 0, A, 1, B, 1, C, 1, SCALE,
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     $              IWORK, NMAX, WORK, NMAX, INFO )
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      CALL CHKXER( 'STRSYL3', INFOT, NOUT, LERR, OK )
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      INFOT = 3
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      CALL STRSYL3( 'N', 'N', 0, 0, 0, A, 1, B, 1, C, 1, SCALE,
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     $              IWORK, NMAX, WORK, NMAX, INFO )
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      CALL CHKXER( 'STRSYL3', INFOT, NOUT, LERR, OK )
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      INFOT = 4
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      CALL STRSYL3( 'N', 'N', 1, -1, 0, A, 1, B, 1, C, 1, SCALE,
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     $              IWORK, NMAX, WORK, NMAX, INFO )
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      CALL CHKXER( 'STRSYL3', INFOT, NOUT, LERR, OK )
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      INFOT = 5
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      CALL STRSYL3( 'N', 'N', 1, 0, -1, A, 1, B, 1, C, 1, SCALE,
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     $              IWORK, NMAX, WORK, NMAX, INFO )
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      CALL CHKXER( 'STRSYL3', INFOT, NOUT, LERR, OK )
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      INFOT = 7
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      CALL STRSYL3( 'N', 'N', 1, 2, 0, A, 1, B, 1, C, 2, SCALE,
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     $              IWORK, NMAX, WORK, NMAX, INFO )
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      CALL CHKXER( 'STRSYL3', INFOT, NOUT, LERR, OK )
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      INFOT = 9
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      CALL STRSYL3( 'N', 'N', 1, 0, 2, A, 1, B, 1, C, 1, SCALE,
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     $              IWORK, NMAX, WORK, NMAX, INFO )
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      CALL CHKXER( 'STRSYL3', INFOT, NOUT, LERR, OK )
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      INFOT = 11
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      CALL STRSYL3( 'N', 'N', 1, 2, 0, A, 2, B, 1, C, 1, SCALE,
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     $              IWORK, NMAX, WORK, NMAX, INFO )
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      CALL CHKXER( 'STRSYL3', INFOT, NOUT, LERR, OK )
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      NT = NT + 8
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*
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*     Test STREXC
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*
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      SRNAMT = 'STREXC'
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      IFST = 1
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      ILST = 1
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      INFOT = 1
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      CALL STREXC( 'X', 1, A, 1, B, 1, IFST, ILST, WORK, INFO )
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      CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK )
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      INFOT = 2
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      CALL STREXC( 'N', -1, A, 1, B, 1, IFST, ILST, WORK, INFO )
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      CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK )
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      INFOT = 4
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      ILST = 2
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      CALL STREXC( 'N', 2, A, 1, B, 1, IFST, ILST, WORK, INFO )
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      CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK )
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      INFOT = 6
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      CALL STREXC( 'V', 2, A, 2, B, 1, IFST, ILST, WORK, INFO )
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      CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK )
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      INFOT = 7
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      IFST = 0
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      ILST = 1
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      CALL STREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO )
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      CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK )
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      INFOT = 7
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      IFST = 2
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      CALL STREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO )
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      CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK )
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      INFOT = 8
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      IFST = 1
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      ILST = 0
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      CALL STREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO )
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      CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK )
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      INFOT = 8
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      ILST = 2
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      CALL STREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO )
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      CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK )
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      NT = NT + 8
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*
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*     Test STRSNA
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*
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      SRNAMT = 'STRSNA'
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      INFOT = 1
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      CALL STRSNA( 'X', 'A', SEL, 0, A, 1, B, 1, C, 1, S, SEP, 1, M,
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     $             WORK, 1, IWORK, INFO )
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      CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK )
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      INFOT = 2
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      CALL STRSNA( 'B', 'X', SEL, 0, A, 1, B, 1, C, 1, S, SEP, 1, M,
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     $             WORK, 1, IWORK, INFO )
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      CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK )
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      INFOT = 4
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      CALL STRSNA( 'B', 'A', SEL, -1, A, 1, B, 1, C, 1, S, SEP, 1, M,
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     $             WORK, 1, IWORK, INFO )
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      CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK )
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      INFOT = 6
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      CALL STRSNA( 'V', 'A', SEL, 2, A, 1, B, 1, C, 1, S, SEP, 2, M,
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     $             WORK, 2, IWORK, INFO )
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      CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK )
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      INFOT = 8
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      CALL STRSNA( 'B', 'A', SEL, 2, A, 2, B, 1, C, 2, S, SEP, 2, M,
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     $             WORK, 2, IWORK, INFO )
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      CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK )
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      INFOT = 10
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      CALL STRSNA( 'B', 'A', SEL, 2, A, 2, B, 2, C, 1, S, SEP, 2, M,
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     $             WORK, 2, IWORK, INFO )
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      CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK )
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      INFOT = 13
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      CALL STRSNA( 'B', 'A', SEL, 1, A, 1, B, 1, C, 1, S, SEP, 0, M,
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     $             WORK, 1, IWORK, INFO )
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      CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK )
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      INFOT = 13
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      CALL STRSNA( 'B', 'S', SEL, 2, A, 2, B, 2, C, 2, S, SEP, 1, M,
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     $             WORK, 2, IWORK, INFO )
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      CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK )
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      INFOT = 16
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      CALL STRSNA( 'B', 'A', SEL, 2, A, 2, B, 2, C, 2, S, SEP, 2, M,
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     $             WORK, 1, IWORK, INFO )
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      CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK )
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      NT = NT + 9
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*
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*     Test STRSEN
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*
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      SEL( 1 ) = .FALSE.
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      SRNAMT = 'STRSEN'
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      INFOT = 1
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      CALL STRSEN( 'X', 'N', SEL, 0, A, 1, B, 1, WR, WI, M, S( 1 ),
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     $             SEP( 1 ), WORK, 1, IWORK, 1, INFO )
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      CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK )
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      INFOT = 2
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      CALL STRSEN( 'N', 'X', SEL, 0, A, 1, B, 1, WR, WI, M, S( 1 ),
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     $             SEP( 1 ), WORK, 1, IWORK, 1, INFO )
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      CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK )
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      INFOT = 4
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      CALL STRSEN( 'N', 'N', SEL, -1, A, 1, B, 1, WR, WI, M, S( 1 ),
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     $             SEP( 1 ), WORK, 1, IWORK, 1, INFO )
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      CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK )
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      INFOT = 6
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      CALL STRSEN( 'N', 'N', SEL, 2, A, 1, B, 1, WR, WI, M, S( 1 ),
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     $             SEP( 1 ), WORK, 2, IWORK, 1, INFO )
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      CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK )
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      INFOT = 8
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      CALL STRSEN( 'N', 'V', SEL, 2, A, 2, B, 1, WR, WI, M, S( 1 ),
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     $             SEP( 1 ), WORK, 1, IWORK, 1, INFO )
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      CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK )
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      INFOT = 15
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      CALL STRSEN( 'N', 'V', SEL, 2, A, 2, B, 2, WR, WI, M, S( 1 ),
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     $             SEP( 1 ), WORK, 0, IWORK, 1, INFO )
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      CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK )
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      INFOT = 15
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      CALL STRSEN( 'E', 'V', SEL, 3, A, 3, B, 3, WR, WI, M, S( 1 ),
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     $             SEP( 1 ), WORK, 1, IWORK, 1, INFO )
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      CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK )
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      INFOT = 15
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      CALL STRSEN( 'V', 'V', SEL, 3, A, 3, B, 3, WR, WI, M, S( 1 ),
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     $             SEP( 1 ), WORK, 3, IWORK, 2, INFO )
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      CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK )
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      INFOT = 17
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      CALL STRSEN( 'E', 'V', SEL, 2, A, 2, B, 2, WR, WI, M, S( 1 ),
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     $             SEP( 1 ), WORK, 1, IWORK, 0, INFO )
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      CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK )
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      INFOT = 17
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      CALL STRSEN( 'V', 'V', SEL, 3, A, 3, B, 3, WR, WI, M, S( 1 ),
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     $             SEP( 1 ), WORK, 4, IWORK, 1, INFO )
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      CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK )
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      NT = NT + 10
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*
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*     Print a summary line.
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*
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      IF( OK ) THEN
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         WRITE( NOUT, FMT = 9999 )PATH, NT
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      ELSE
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         WRITE( NOUT, FMT = 9998 )PATH
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      END IF
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*
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      RETURN
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 9999 FORMAT( 1X, A3, ' routines passed the tests of the error exits (',
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     $      I3, ' tests done)' )
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 9998 FORMAT( ' *** ', A3, ' routines failed the tests of the error ex',
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     $      'its ***' )
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*
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*     End of SERREC
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*
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      END
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