testdata/lapack/TESTING/LIN/serrls.f
*> \brief \b SERRLS
*
* =========== DOCUMENTATION ===========
*
* Online html documentation available at
* http://www.netlib.org/lapack/explore-html/
*
* Definition:
* ===========
*
* SUBROUTINE SERRLS( PATH, NUNIT )
*
* .. Scalar Arguments ..
* CHARACTER*3 PATH
* INTEGER NUNIT
* ..
*
*
*> \par Purpose:
* =============
*>
*> \verbatim
*>
*> SERRLS tests the error exits for the REAL least squares
*> driver routines (SGELS, SGELSS, SGELSY, SGELSD).
*> \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 single_lin
*
* =====================================================================
SUBROUTINE SERRLS( 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 = 2 )
* ..
* .. Local Scalars ..
CHARACTER*2 C2
INTEGER INFO, IRNK
REAL RCOND
* ..
* .. Local Arrays ..
INTEGER IP( NMAX )
REAL A( NMAX, NMAX ), B( NMAX, NMAX ), S( NMAX ),
$ W( NMAX )
* ..
* .. External Functions ..
LOGICAL LSAMEN
EXTERNAL LSAMEN
* ..
* .. External Subroutines ..
EXTERNAL ALAESM, CHKXER, SGELS, SGELSD, SGELSS, SGELSY
* ..
* .. 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 )
A( 1, 1 ) = 1.0E+0
A( 1, 2 ) = 2.0E+0
A( 2, 2 ) = 3.0E+0
A( 2, 1 ) = 4.0E+0
OK = .TRUE.
*
IF( LSAMEN( 2, C2, 'LS' ) ) THEN
*
* Test error exits for the least squares driver routines.
*
* SGELS
*
SRNAMT = 'SGELS '
INFOT = 1
CALL SGELS( '/', 0, 0, 0, A, 1, B, 1, W, 1, INFO )
CALL CHKXER( 'SGELS ', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGELS( 'N', -1, 0, 0, A, 1, B, 1, W, 1, INFO )
CALL CHKXER( 'SGELS ', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SGELS( 'N', 0, -1, 0, A, 1, B, 1, W, 1, INFO )
CALL CHKXER( 'SGELS ', INFOT, NOUT, LERR, OK )
INFOT = 4
CALL SGELS( 'N', 0, 0, -1, A, 1, B, 1, W, 1, INFO )
CALL CHKXER( 'SGELS ', INFOT, NOUT, LERR, OK )
INFOT = 6
CALL SGELS( 'N', 2, 0, 0, A, 1, B, 2, W, 2, INFO )
CALL CHKXER( 'SGELS ', INFOT, NOUT, LERR, OK )
INFOT = 8
CALL SGELS( 'N', 2, 0, 0, A, 2, B, 1, W, 2, INFO )
CALL CHKXER( 'SGELS ', INFOT, NOUT, LERR, OK )
INFOT = 10
CALL SGELS( 'N', 1, 1, 0, A, 1, B, 1, W, 1, INFO )
CALL CHKXER( 'SGELS ', INFOT, NOUT, LERR, OK )
*
* SGELSS
*
SRNAMT = 'SGELSS'
INFOT = 1
CALL SGELSS( -1, 0, 0, A, 1, B, 1, S, RCOND, IRNK, W, 1, INFO )
CALL CHKXER( 'SGELSS', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGELSS( 0, -1, 0, A, 1, B, 1, S, RCOND, IRNK, W, 1, INFO )
CALL CHKXER( 'SGELSS', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SGELSS( 0, 0, -1, A, 1, B, 1, S, RCOND, IRNK, W, 1, INFO )
CALL CHKXER( 'SGELSS', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SGELSS( 2, 0, 0, A, 1, B, 2, S, RCOND, IRNK, W, 2, INFO )
CALL CHKXER( 'SGELSS', INFOT, NOUT, LERR, OK )
INFOT = 7
CALL SGELSS( 2, 0, 0, A, 2, B, 1, S, RCOND, IRNK, W, 2, INFO )
CALL CHKXER( 'SGELSS', INFOT, NOUT, LERR, OK )
*
* SGELSY
*
SRNAMT = 'SGELSY'
INFOT = 1
CALL SGELSY( -1, 0, 0, A, 1, B, 1, IP, RCOND, IRNK, W, 10,
$ INFO )
CALL CHKXER( 'SGELSY', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGELSY( 0, -1, 0, A, 1, B, 1, IP, RCOND, IRNK, W, 10,
$ INFO )
CALL CHKXER( 'SGELSY', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SGELSY( 0, 0, -1, A, 1, B, 1, IP, RCOND, IRNK, W, 10,
$ INFO )
CALL CHKXER( 'SGELSY', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SGELSY( 2, 0, 0, A, 1, B, 2, IP, RCOND, IRNK, W, 10,
$ INFO )
CALL CHKXER( 'SGELSY', INFOT, NOUT, LERR, OK )
INFOT = 7
CALL SGELSY( 2, 0, 0, A, 2, B, 1, IP, RCOND, IRNK, W, 10,
$ INFO )
CALL CHKXER( 'SGELSY', INFOT, NOUT, LERR, OK )
INFOT = 12
CALL SGELSY( 2, 2, 1, A, 2, B, 2, IP, RCOND, IRNK, W, 1, INFO )
CALL CHKXER( 'SGELSY', INFOT, NOUT, LERR, OK )
*
* SGELSD
*
SRNAMT = 'SGELSD'
INFOT = 1
CALL SGELSD( -1, 0, 0, A, 1, B, 1, S, RCOND, IRNK, W, 10,
$ IP, INFO )
CALL CHKXER( 'SGELSD', INFOT, NOUT, LERR, OK )
INFOT = 2
CALL SGELSD( 0, -1, 0, A, 1, B, 1, S, RCOND, IRNK, W, 10,
$ IP, INFO )
CALL CHKXER( 'SGELSD', INFOT, NOUT, LERR, OK )
INFOT = 3
CALL SGELSD( 0, 0, -1, A, 1, B, 1, S, RCOND, IRNK, W, 10,
$ IP, INFO )
CALL CHKXER( 'SGELSD', INFOT, NOUT, LERR, OK )
INFOT = 5
CALL SGELSD( 2, 0, 0, A, 1, B, 2, S, RCOND, IRNK, W, 10,
$ IP, INFO )
CALL CHKXER( 'SGELSD', INFOT, NOUT, LERR, OK )
INFOT = 7
CALL SGELSD( 2, 0, 0, A, 2, B, 1, S, RCOND, IRNK, W, 10,
$ IP, INFO )
CALL CHKXER( 'SGELSD', INFOT, NOUT, LERR, OK )
INFOT = 12
CALL SGELSD( 2, 2, 1, A, 2, B, 2, S, RCOND, IRNK, W, 1, IP,
$ INFO )
CALL CHKXER( 'SGELSD', INFOT, NOUT, LERR, OK )
END IF
*
* Print a summary line.
*
CALL ALAESM( PATH, OK, NOUT )
*
RETURN
*
* End of SERRLS
*
END