*> \brief \b SERREC * * =========== DOCUMENTATION =========== * * Online html documentation available at * http://www.netlib.org/lapack/explore-html/ * * Definition: * =========== * * SUBROUTINE SERREC( PATH, NUNIT ) * * .. Scalar Arguments .. * CHARACTER*3 PATH * INTEGER NUNIT * .. * * *> \par Purpose: * ============= *> *> \verbatim *> *> SERREC tests the error exits for the routines for eigen- condition *> estimation for REAL matrices: *> STRSYL, STREXC, STRSNA and STRSEN. *> \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 single_eig * * ===================================================================== SUBROUTINE SERREC( 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 REAL ONE, ZERO PARAMETER ( NMAX = 4, ONE = 1.0E0, ZERO = 0.0E0 ) * .. * .. Local Scalars .. INTEGER I, IFST, ILST, INFO, J, M, NT REAL SCALE * .. * .. Local Arrays .. LOGICAL SEL( NMAX ) INTEGER IWORK( NMAX ) REAL A( NMAX, NMAX ), B( NMAX, NMAX ), $ C( NMAX, NMAX ), S( NMAX ), SEP( NMAX ), $ WI( NMAX ), WORK( NMAX ), WR( NMAX ) * .. * .. External Subroutines .. EXTERNAL CHKXER, STREXC, STRSEN, STRSNA, STRSYL * .. * .. Scalars in Common .. LOGICAL LERR, OK CHARACTER*32 SRNAMT INTEGER INFOT, NOUT * .. * .. Common blocks .. COMMON / INFOC / INFOT, NOUT, OK, LERR COMMON / SRNAMC / SRNAMT * .. * .. Executable Statements .. * NOUT = NUNIT OK = .TRUE. NT = 0 * * Initialize A, B and SEL * DO 20 J = 1, NMAX DO 10 I = 1, NMAX A( I, J ) = ZERO B( I, J ) = ZERO 10 CONTINUE 20 CONTINUE DO 30 I = 1, NMAX A( I, I ) = ONE SEL( I ) = .TRUE. 30 CONTINUE * * Test STRSYL * SRNAMT = 'STRSYL' INFOT = 1 CALL STRSYL( 'X', 'N', 1, 0, 0, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL STRSYL( 'N', 'X', 1, 0, 0, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL STRSYL( 'N', 'N', 0, 0, 0, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL STRSYL( 'N', 'N', 1, -1, 0, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL STRSYL( 'N', 'N', 1, 0, -1, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK ) INFOT = 7 CALL STRSYL( 'N', 'N', 1, 2, 0, A, 1, B, 1, C, 2, SCALE, INFO ) CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK ) INFOT = 9 CALL STRSYL( 'N', 'N', 1, 0, 2, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK ) INFOT = 11 CALL STRSYL( 'N', 'N', 1, 2, 0, A, 2, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'STRSYL', INFOT, NOUT, LERR, OK ) NT = NT + 8 * * Test STREXC * SRNAMT = 'STREXC' IFST = 1 ILST = 1 INFOT = 1 CALL STREXC( 'X', 1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL STREXC( 'N', -1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK ) INFOT = 4 ILST = 2 CALL STREXC( 'N', 2, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL STREXC( 'V', 2, A, 2, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK ) INFOT = 7 IFST = 0 ILST = 1 CALL STREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK ) INFOT = 7 IFST = 2 CALL STREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK ) INFOT = 8 IFST = 1 ILST = 0 CALL STREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK ) INFOT = 8 ILST = 2 CALL STREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'STREXC', INFOT, NOUT, LERR, OK ) NT = NT + 8 * * Test STRSNA * SRNAMT = 'STRSNA' INFOT = 1 CALL STRSNA( 'X', 'A', SEL, 0, A, 1, B, 1, C, 1, S, SEP, 1, M, $ WORK, 1, IWORK, INFO ) CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL STRSNA( 'B', 'X', SEL, 0, A, 1, B, 1, C, 1, S, SEP, 1, M, $ WORK, 1, IWORK, INFO ) CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL STRSNA( 'B', 'A', SEL, -1, A, 1, B, 1, C, 1, S, SEP, 1, M, $ WORK, 1, IWORK, INFO ) CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL STRSNA( 'V', 'A', SEL, 2, A, 1, B, 1, C, 1, S, SEP, 2, M, $ WORK, 2, IWORK, INFO ) CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL STRSNA( 'B', 'A', SEL, 2, A, 2, B, 1, C, 2, S, SEP, 2, M, $ WORK, 2, IWORK, INFO ) CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK ) INFOT = 10 CALL STRSNA( 'B', 'A', SEL, 2, A, 2, B, 2, C, 1, S, SEP, 2, M, $ WORK, 2, IWORK, INFO ) CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK ) INFOT = 13 CALL STRSNA( 'B', 'A', SEL, 1, A, 1, B, 1, C, 1, S, SEP, 0, M, $ WORK, 1, IWORK, INFO ) CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK ) INFOT = 13 CALL STRSNA( 'B', 'S', SEL, 2, A, 2, B, 2, C, 2, S, SEP, 1, M, $ WORK, 2, IWORK, INFO ) CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK ) INFOT = 16 CALL STRSNA( 'B', 'A', SEL, 2, A, 2, B, 2, C, 2, S, SEP, 2, M, $ WORK, 1, IWORK, INFO ) CALL CHKXER( 'STRSNA', INFOT, NOUT, LERR, OK ) NT = NT + 9 * * Test STRSEN * SEL( 1 ) = .FALSE. SRNAMT = 'STRSEN' INFOT = 1 CALL STRSEN( 'X', 'N', SEL, 0, A, 1, B, 1, WR, WI, M, S( 1 ), $ SEP( 1 ), WORK, 1, IWORK, 1, INFO ) CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL STRSEN( 'N', 'X', SEL, 0, A, 1, B, 1, WR, WI, M, S( 1 ), $ SEP( 1 ), WORK, 1, IWORK, 1, INFO ) CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL STRSEN( 'N', 'N', SEL, -1, A, 1, B, 1, WR, WI, M, S( 1 ), $ SEP( 1 ), WORK, 1, IWORK, 1, INFO ) CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL STRSEN( 'N', 'N', SEL, 2, A, 1, B, 1, WR, WI, M, S( 1 ), $ SEP( 1 ), WORK, 2, IWORK, 1, INFO ) CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL STRSEN( 'N', 'V', SEL, 2, A, 2, B, 1, WR, WI, M, S( 1 ), $ SEP( 1 ), WORK, 1, IWORK, 1, INFO ) CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK ) INFOT = 15 CALL STRSEN( 'N', 'V', SEL, 2, A, 2, B, 2, WR, WI, M, S( 1 ), $ SEP( 1 ), WORK, 0, IWORK, 1, INFO ) CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK ) INFOT = 15 CALL STRSEN( 'E', 'V', SEL, 3, A, 3, B, 3, WR, WI, M, S( 1 ), $ SEP( 1 ), WORK, 1, IWORK, 1, INFO ) CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK ) INFOT = 15 CALL STRSEN( 'V', 'V', SEL, 3, A, 3, B, 3, WR, WI, M, S( 1 ), $ SEP( 1 ), WORK, 3, IWORK, 2, INFO ) CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK ) INFOT = 17 CALL STRSEN( 'E', 'V', SEL, 2, A, 2, B, 2, WR, WI, M, S( 1 ), $ SEP( 1 ), WORK, 1, IWORK, 0, INFO ) CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK ) INFOT = 17 CALL STRSEN( 'V', 'V', SEL, 3, A, 3, B, 3, WR, WI, M, S( 1 ), $ SEP( 1 ), WORK, 4, IWORK, 1, INFO ) CALL CHKXER( 'STRSEN', INFOT, NOUT, LERR, OK ) NT = NT + 10 * * Print a summary line. * IF( OK ) THEN WRITE( NOUT, FMT = 9999 )PATH, NT ELSE WRITE( NOUT, FMT = 9998 )PATH END IF * RETURN 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 ex', $ 'its ***' ) * * End of SERREC * END