*> \brief \b DERRTSQR * * =========== DOCUMENTATION =========== * * Online html documentation available at * http://www.netlib.org/lapack/explore-html/ * * Definition: * =========== * * SUBROUTINE SERRTSQR( PATH, NUNIT ) * * .. Scalar Arguments .. * CHARACTER*3 PATH * INTEGER NUNIT * .. * * *> \par Purpose: * ============= *> *> \verbatim *> *> DERRTSQR tests the error exits for the REAL routines *> that use the TSQR decomposition of a general matrix. *> \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 double_lin * * ===================================================================== SUBROUTINE SERRTSQR( PATH, NUNIT ) IMPLICIT NONE * * -- 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 = 2 ) * .. * .. Local Scalars .. INTEGER I, INFO, J, NB * .. * .. Local Arrays .. REAL A( NMAX, NMAX ), T( NMAX, NMAX ), W( NMAX ), $ C( NMAX, NMAX ), TAU(NMAX*2) * .. * .. External Subroutines .. EXTERNAL ALAESM, CHKXER, SGEQR, $ SGEMQR, SGELQ, SGEMLQ * .. * .. 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 REAL * .. * .. Executable Statements .. * NOUT = NUNIT WRITE( NOUT, FMT = * ) * * Set the variables to innocuous values. * DO J = 1, NMAX DO I = 1, NMAX A( I, J ) = 1.D0 / REAL( I+J ) C( I, J ) = 1.D0 / REAL( I+J ) T( I, J ) = 1.D0 / REAL( I+J ) END DO W( J ) = 0.D0 END DO OK = .TRUE. * * Error exits for TS factorization * * SGEQR * SRNAMT = 'SGEQR' INFOT = 1 CALL SGEQR( -1, 0, A, 1, TAU, 1, W, 1, INFO ) CALL CHKXER( 'SGEQR', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL SGEQR( 0, -1, A, 1, TAU, 1, W, 1, INFO ) CALL CHKXER( 'SGEQR', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL SGEQR( 1, 1, A, 0, TAU, 1, W, 1, INFO ) CALL CHKXER( 'SGEQR', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL SGEQR( 3, 2, A, 3, TAU, 1, W, 1, INFO ) CALL CHKXER( 'SGEQR', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL SGEQR( 3, 2, A, 3, TAU, 7, W, 0, INFO ) CALL CHKXER( 'SGEQR', INFOT, NOUT, LERR, OK ) * * SGEMQR * TAU(1)=1 TAU(2)=1 TAU(3)=1 TAU(4)=1 SRNAMT = 'SGEMQR' NB=1 INFOT = 1 CALL SGEMQR( '/', 'N', 0, 0, 0, A, 1, TAU, 1, C, 1, W, 1,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL SGEMQR( 'L', '/', 0, 0, 0, A, 1, TAU, 1, C, 1, W, 1,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL SGEMQR( 'L', 'N', -1, 0, 0, A, 1, TAU, 1, C, 1, W,1,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL SGEMQR( 'L', 'N', 0, -1, 0, A, 1, TAU, 1, C, 1, W,1,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL SGEMQR( 'L', 'N', 0, 0, -1, A, 1, TAU, 1, C, 1, W,1,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL SGEMQR( 'R', 'N', 0, 0, -1, A, 1, TAU, 1, C, 1, W,1,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) INFOT = 7 CALL SGEMQR( 'L', 'N', 2, 1, 0, A, 0, TAU, 1, C, 1, W, 1,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) INFOT = 9 CALL SGEMQR( 'R', 'N', 2, 2, 1, A, 2, TAU, 0, C, 1, W, 1,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) INFOT = 9 CALL SGEMQR( 'L', 'N', 2, 2, 1, A, 2, TAU, 0, C, 1, W, 1,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) INFOT = 11 CALL SGEMQR( 'L', 'N', 2, 1, 1, A, 2, TAU, 6, C, 0, W, 1,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) INFOT = 13 CALL SGEMQR( 'L', 'N', 2, 2, 1, A, 2, TAU, 6, C, 2, W, 0,INFO) CALL CHKXER( 'SGEMQR', INFOT, NOUT, LERR, OK ) * * SGELQ * SRNAMT = 'SGELQ' INFOT = 1 CALL SGELQ( -1, 0, A, 1, TAU, 1, W, 1, INFO ) CALL CHKXER( 'SGELQ', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL SGELQ( 0, -1, A, 1, TAU, 1, W, 1, INFO ) CALL CHKXER( 'SGELQ', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL SGELQ( 1, 1, A, 0, TAU, 1, W, 1, INFO ) CALL CHKXER( 'SGELQ', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL SGELQ( 2, 3, A, 3, TAU, 1, W, 1, INFO ) CALL CHKXER( 'SGELQ', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL SGELQ( 2, 3, A, 3, TAU, 7, W, 0, INFO ) CALL CHKXER( 'SGELQ', INFOT, NOUT, LERR, OK ) * * SGEMLQ * TAU(1)=1 TAU(2)=1 SRNAMT = 'SGEMLQ' NB=1 INFOT = 1 CALL SGEMLQ( '/', 'N', 0, 0, 0, A, 1, TAU, 1, C, 1, W, 1,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL SGEMLQ( 'L', '/', 0, 0, 0, A, 1, TAU, 1, C, 1, W, 1,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL SGEMLQ( 'L', 'N', -1, 0, 0, A, 1, TAU, 1, C, 1, W,1,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL SGEMLQ( 'L', 'N', 0, -1, 0, A, 1, TAU, 1, C, 1, W,1,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL SGEMLQ( 'L', 'N', 0, 0, -1, A, 1, TAU, 1, C, 1, W,1,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL SGEMLQ( 'R', 'N', 0, 0, -1, A, 1, TAU, 1, C, 1, W,1,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) INFOT = 7 CALL SGEMLQ( 'L', 'N', 1, 2, 0, A, 0, TAU, 1, C, 1, W, 1,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) INFOT = 9 CALL SGEMLQ( 'R', 'N', 2, 2, 1, A, 1, TAU, 0, C, 1, W, 1,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) INFOT = 9 CALL SGEMLQ( 'L', 'N', 2, 2, 1, A, 1, TAU, 0, C, 1, W, 1,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) INFOT = 11 CALL SGEMLQ( 'L', 'N', 1, 2, 1, A, 1, TAU, 6, C, 0, W, 1,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) INFOT = 13 CALL SGEMLQ( 'L', 'N', 2, 2, 1, A, 2, TAU, 6, C, 2, W, 0,INFO) CALL CHKXER( 'SGEMLQ', INFOT, NOUT, LERR, OK ) * * Print a summary line. * CALL ALAESM( PATH, OK, NOUT ) * RETURN * * End of SERRTSQR * END