*> \brief \b DERLQT * * =========== DOCUMENTATION =========== * * Online html documentation available at * http://www.netlib.org/lapack/explore-html/ * * Definition: * =========== * * SUBROUTINE DERRLQT( PATH, NUNIT ) * * .. Scalar Arguments .. * CHARACTER*3 PATH * INTEGER NUNIT * .. * * *> \par Purpose: * ============= *> *> \verbatim *> *> DERRLQT tests the error exits for the DOUBLE PRECISION routines *> that use the LQT 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 DERRLQT( 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 * .. * .. Local Arrays .. DOUBLE PRECISION A( NMAX, NMAX ), T( NMAX, NMAX ), W( NMAX ), $ C( NMAX, NMAX ) * .. * .. External Subroutines .. EXTERNAL ALAESM, CHKXER, DGELQT3, DGELQT, $ DGEMLQT * .. * .. 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 * .. * .. 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 / DBLE( I+J ) C( I, J ) = 1.D0 / DBLE( I+J ) T( I, J ) = 1.D0 / DBLE( I+J ) END DO W( J ) = 0.D0 END DO OK = .TRUE. * * Error exits for LQT factorization * * DGELQT * SRNAMT = 'DGELQT' INFOT = 1 CALL DGELQT( -1, 0, 1, A, 1, T, 1, W, INFO ) CALL CHKXER( 'DGELQT', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGELQT( 0, -1, 1, A, 1, T, 1, W, INFO ) CALL CHKXER( 'DGELQT', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL DGELQT( 0, 0, 0, A, 1, T, 1, W, INFO ) CALL CHKXER( 'DGELQT', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL DGELQT( 2, 1, 1, A, 1, T, 1, W, INFO ) CALL CHKXER( 'DGELQT', INFOT, NOUT, LERR, OK ) INFOT = 7 CALL DGELQT( 2, 2, 2, A, 2, T, 1, W, INFO ) CALL CHKXER( 'DGELQT', INFOT, NOUT, LERR, OK ) * * DGELQT3 * SRNAMT = 'DGELQT3' INFOT = 1 CALL DGELQT3( -1, 0, A, 1, T, 1, INFO ) CALL CHKXER( 'DGELQT3', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGELQT3( 0, -1, A, 1, T, 1, INFO ) CALL CHKXER( 'DGELQT3', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL DGELQT3( 2, 2, A, 1, T, 1, INFO ) CALL CHKXER( 'DGELQT3', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL DGELQT3( 2, 2, A, 2, T, 1, INFO ) CALL CHKXER( 'DGELQT3', INFOT, NOUT, LERR, OK ) * * DGEMLQT * SRNAMT = 'DGEMLQT' INFOT = 1 CALL DGEMLQT( '/', 'N', 0, 0, 0, 1, A, 1, T, 1, C, 1, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGEMLQT( 'L', '/', 0, 0, 0, 1, A, 1, T, 1, C, 1, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) INFOT = 3 CALL DGEMLQT( 'L', 'N', -1, 0, 0, 1, A, 1, T, 1, C, 1, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL DGEMLQT( 'L', 'N', 0, -1, 0, 1, A, 1, T, 1, C, 1, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL DGEMLQT( 'L', 'N', 0, 0, -1, 1, A, 1, T, 1, C, 1, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) INFOT = 5 CALL DGEMLQT( 'R', 'N', 0, 0, -1, 1, A, 1, T, 1, C, 1, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) INFOT = 6 CALL DGEMLQT( 'L', 'N', 0, 0, 0, 0, A, 1, T, 1, C, 1, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL DGEMLQT( 'R', 'N', 2, 2, 2, 1, A, 1, T, 1, C, 1, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL DGEMLQT( 'L', 'N', 2, 2, 2, 1, A, 1, T, 1, C, 1, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) INFOT = 10 CALL DGEMLQT( 'R', 'N', 1, 1, 1, 1, A, 1, T, 0, C, 1, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) INFOT = 12 CALL DGEMLQT( 'L', 'N', 1, 1, 1, 1, A, 1, T, 1, C, 0, W, INFO ) CALL CHKXER( 'DGEMLQT', INFOT, NOUT, LERR, OK ) * * Print a summary line. * CALL ALAESM( PATH, OK, NOUT ) * RETURN * * End of DERRLQT * END