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*> \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.
*
*> \ingroup double_lin
*
* =====================================================================
SUBROUTINE DERRQP( 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
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
|
