*> \brief \b DERRQP * * =========== DOCUMENTATION =========== * * Online html documentation available at * http://www.netlib.org/lapack/explore-html/ * * Definition: * =========== * * SUBROUTINE DERRQP( PATH, NUNIT ) * * .. Scalar Arguments .. * CHARACTER*3 PATH * INTEGER NUNIT * .. * * *> \par Purpose: * ============= *> *> \verbatim *> *> DERRQP tests the error exits for DGEQP3. *> \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. * *> \date December 2016 * *> \ingroup double_lin * * ===================================================================== SUBROUTINE DERRQP( PATH, NUNIT ) * * -- LAPACK test routine (version 3.7.0) -- * -- LAPACK is a software package provided by Univ. of Tennessee, -- * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- * December 2016 * * .. Scalar Arguments .. CHARACTER*3 PATH INTEGER NUNIT * .. * * ===================================================================== * * .. Parameters .. INTEGER NMAX PARAMETER ( NMAX = 3 ) * .. * .. Local Scalars .. CHARACTER*2 C2 INTEGER INFO, LW * .. * .. Local Arrays .. INTEGER IP( NMAX ) DOUBLE PRECISION A( NMAX, NMAX ), TAU( NMAX ), W( 3*NMAX+1 ) * .. * .. External Functions .. LOGICAL LSAMEN EXTERNAL LSAMEN * .. * .. External Subroutines .. EXTERNAL ALAESM, CHKXER, DGEQP3 * .. * .. 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 WRITE( NOUT, FMT = * ) C2 = PATH( 2: 3 ) LW = 3*NMAX + 1 A( 1, 1 ) = 1.0D+0 A( 1, 2 ) = 2.0D+0 A( 2, 2 ) = 3.0D+0 A( 2, 1 ) = 4.0D+0 OK = .TRUE. * IF( LSAMEN( 2, C2, 'QP' ) ) THEN * * Test error exits for QR factorization with pivoting * * DGEQP3 * SRNAMT = 'DGEQP3' INFOT = 1 CALL DGEQP3( -1, 0, A, 1, IP, TAU, W, LW, INFO ) CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) INFOT = 2 CALL DGEQP3( 1, -1, A, 1, IP, TAU, W, LW, INFO ) CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) INFOT = 4 CALL DGEQP3( 2, 3, A, 1, IP, TAU, W, LW, INFO ) CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) INFOT = 8 CALL DGEQP3( 2, 2, A, 2, IP, TAU, W, LW-10, INFO ) CALL CHKXER( 'DGEQP3', INFOT, NOUT, LERR, OK ) END IF * * Print a summary line. * CALL ALAESM( PATH, OK, NOUT ) * RETURN * * End of DERRQP * END