SUBROUTINE DERREC( PATH, NUNIT ) * * -- LAPACK test routine (version 3.1) -- * Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. * November 2006 * * .. Scalar Arguments .. CHARACTER*3 PATH INTEGER NUNIT * .. * * Purpose * ======= * * DERREC tests the error exits for the routines for eigen- condition * estimation for DOUBLE PRECISION matrices: * DTRSYL, STREXC, STRSNA and STRSEN. * * 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 DOUBLE PRECISION ONE, ZERO PARAMETER ( NMAX = 4, ONE = 1.0D0, ZERO = 0.0D0 ) * .. * .. Local Scalars .. INTEGER I, IFST, ILST, INFO, J, M, NT DOUBLE PRECISION SCALE * .. * .. Local Arrays .. LOGICAL SEL( NMAX ) INTEGER IWORK( NMAX ) DOUBLE PRECISION A( NMAX, NMAX ), B( NMAX, NMAX ), \$ C( NMAX, NMAX ), S( NMAX ), SEP( NMAX ), \$ WI( NMAX ), WORK( NMAX ), WR( NMAX ) * .. * .. External Subroutines .. EXTERNAL CHKXER, DTREXC, DTRSEN, DTRSNA, DTRSYL * .. * .. 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 DTRSYL * SRNAMT = 'DTRSYL' INFOT = 1 CALL DTRSYL( 'X', 'N', 1, 0, 0, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'DTRSYL', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DTRSYL( 'N', 'X', 1, 0, 0, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'DTRSYL', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL DTRSYL( 'N', 'N', 0, 0, 0, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'DTRSYL', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL DTRSYL( 'N', 'N', 1, -1, 0, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'DTRSYL', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL DTRSYL( 'N', 'N', 1, 0, -1, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'DTRSYL', INFOT, NOUT, LERR, OK ) INFOT = 7 CALL DTRSYL( 'N', 'N', 1, 2, 0, A, 1, B, 1, C, 2, SCALE, INFO ) CALL CHKXER( 'DTRSYL', INFOT, NOUT, LERR, OK ) INFOT = 9 CALL DTRSYL( 'N', 'N', 1, 0, 2, A, 1, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'DTRSYL', INFOT, NOUT, LERR, OK ) INFOT = 11 CALL DTRSYL( 'N', 'N', 1, 2, 0, A, 2, B, 1, C, 1, SCALE, INFO ) CALL CHKXER( 'DTRSYL', INFOT, NOUT, LERR, OK ) NT = NT + 8 * * Test DTREXC * SRNAMT = 'DTREXC' IFST = 1 ILST = 1 INFOT = 1 CALL DTREXC( 'X', 1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'DTREXC', INFOT, NOUT, LERR, OK ) INFOT = 7 CALL DTREXC( 'N', 0, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'DTREXC', INFOT, NOUT, LERR, OK ) INFOT = 4 ILST = 2 CALL DTREXC( 'N', 2, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'DTREXC', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL DTREXC( 'V', 2, A, 2, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'DTREXC', INFOT, NOUT, LERR, OK ) INFOT = 7 IFST = 0 ILST = 1 CALL DTREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'DTREXC', INFOT, NOUT, LERR, OK ) INFOT = 7 IFST = 2 CALL DTREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'DTREXC', INFOT, NOUT, LERR, OK ) INFOT = 8 IFST = 1 ILST = 0 CALL DTREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'DTREXC', INFOT, NOUT, LERR, OK ) INFOT = 8 ILST = 2 CALL DTREXC( 'V', 1, A, 1, B, 1, IFST, ILST, WORK, INFO ) CALL CHKXER( 'DTREXC', INFOT, NOUT, LERR, OK ) NT = NT + 8 * * Test DTRSNA * SRNAMT = 'DTRSNA' INFOT = 1 CALL DTRSNA( 'X', 'A', SEL, 0, A, 1, B, 1, C, 1, S, SEP, 1, M, \$ WORK, 1, IWORK, INFO ) CALL CHKXER( 'DTRSNA', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DTRSNA( 'B', 'X', SEL, 0, A, 1, B, 1, C, 1, S, SEP, 1, M, \$ WORK, 1, IWORK, INFO ) CALL CHKXER( 'DTRSNA', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL DTRSNA( 'B', 'A', SEL, -1, A, 1, B, 1, C, 1, S, SEP, 1, M, \$ WORK, 1, IWORK, INFO ) CALL CHKXER( 'DTRSNA', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL DTRSNA( 'V', 'A', SEL, 2, A, 1, B, 1, C, 1, S, SEP, 2, M, \$ WORK, 2, IWORK, INFO ) CALL CHKXER( 'DTRSNA', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL DTRSNA( 'B', 'A', SEL, 2, A, 2, B, 1, C, 2, S, SEP, 2, M, \$ WORK, 2, IWORK, INFO ) CALL CHKXER( 'DTRSNA', INFOT, NOUT, LERR, OK ) INFOT = 10 CALL DTRSNA( 'B', 'A', SEL, 2, A, 2, B, 2, C, 1, S, SEP, 2, M, \$ WORK, 2, IWORK, INFO ) CALL CHKXER( 'DTRSNA', INFOT, NOUT, LERR, OK ) INFOT = 13 CALL DTRSNA( 'B', 'A', SEL, 1, A, 1, B, 1, C, 1, S, SEP, 0, M, \$ WORK, 1, IWORK, INFO ) CALL CHKXER( 'DTRSNA', INFOT, NOUT, LERR, OK ) INFOT = 13 CALL DTRSNA( 'B', 'S', SEL, 2, A, 2, B, 2, C, 2, S, SEP, 1, M, \$ WORK, 2, IWORK, INFO ) CALL CHKXER( 'DTRSNA', INFOT, NOUT, LERR, OK ) INFOT = 16 CALL DTRSNA( 'B', 'A', SEL, 2, A, 2, B, 2, C, 2, S, SEP, 2, M, \$ WORK, 1, IWORK, INFO ) CALL CHKXER( 'DTRSNA', INFOT, NOUT, LERR, OK ) NT = NT + 9 * * Test DTRSEN * SEL( 1 ) = .FALSE. SRNAMT = 'DTRSEN' INFOT = 1 CALL DTRSEN( 'X', 'N', SEL, 0, A, 1, B, 1, WR, WI, M, S( 1 ), \$ SEP( 1 ), WORK, 1, IWORK, 1, INFO ) CALL CHKXER( 'DTRSEN', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DTRSEN( 'N', 'X', SEL, 0, A, 1, B, 1, WR, WI, M, S( 1 ), \$ SEP( 1 ), WORK, 1, IWORK, 1, INFO ) CALL CHKXER( 'DTRSEN', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL DTRSEN( 'N', 'N', SEL, -1, A, 1, B, 1, WR, WI, M, S( 1 ), \$ SEP( 1 ), WORK, 1, IWORK, 1, INFO ) CALL CHKXER( 'DTRSEN', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL DTRSEN( 'N', 'N', SEL, 2, A, 1, B, 1, WR, WI, M, S( 1 ), \$ SEP( 1 ), WORK, 2, IWORK, 1, INFO ) CALL CHKXER( 'DTRSEN', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL DTRSEN( 'N', 'V', SEL, 2, A, 2, B, 1, WR, WI, M, S( 1 ), \$ SEP( 1 ), WORK, 1, IWORK, 1, INFO ) CALL CHKXER( 'DTRSEN', INFOT, NOUT, LERR, OK ) INFOT = 15 CALL DTRSEN( 'N', 'V', SEL, 2, A, 2, B, 2, WR, WI, M, S( 1 ), \$ SEP( 1 ), WORK, 0, IWORK, 1, INFO ) CALL CHKXER( 'DTRSEN', INFOT, NOUT, LERR, OK ) INFOT = 15 CALL DTRSEN( 'E', 'V', SEL, 3, A, 3, B, 3, WR, WI, M, S( 1 ), \$ SEP( 1 ), WORK, 1, IWORK, 1, INFO ) CALL CHKXER( 'DTRSEN', INFOT, NOUT, LERR, OK ) INFOT = 15 CALL DTRSEN( 'V', 'V', SEL, 3, A, 3, B, 3, WR, WI, M, S( 1 ), \$ SEP( 1 ), WORK, 3, IWORK, 2, INFO ) CALL CHKXER( 'DTRSEN', INFOT, NOUT, LERR, OK ) INFOT = 17 CALL DTRSEN( 'E', 'V', SEL, 2, A, 2, B, 2, WR, WI, M, S( 1 ), \$ SEP( 1 ), WORK, 1, IWORK, 0, INFO ) CALL CHKXER( 'DTRSEN', INFOT, NOUT, LERR, OK ) INFOT = 17 CALL DTRSEN( 'V', 'V', SEL, 3, A, 3, B, 3, WR, WI, M, S( 1 ), \$ SEP( 1 ), WORK, 4, IWORK, 1, INFO ) CALL CHKXER( 'DTRSEN', 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 DERREC * END