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*> \brief \b XERBLA
*
* =========== DOCUMENTATION ===========
*
* Online html documentation available at
* http://www.netlib.org/lapack/explore-html/
*
* Definition:
* ===========
*
* SUBROUTINE XERBLA( SRNAME, INFO )
*
* .. Scalar Arguments ..
* CHARACTER*(*) SRNAME
* INTEGER INFO
* ..
*
*
*> \par Purpose:
* =============
*>
*> \verbatim
*>
*> This is a special version of XERBLA to be used only as part of
*> the test program for testing error exits from the LAPACK routines.
*> Error messages are printed if INFO.NE.INFOT or if SRNAME.NE.SRNAMT,
*> where INFOT and SRNAMT are values stored in COMMON.
*> \endverbatim
*
* Arguments:
* ==========
*
*> \param[in] SRNAME
*> \verbatim
*> SRNAME is CHARACTER*(*)
*> The name of the subroutine calling XERBLA. This name should
*> match the COMMON variable SRNAMT.
*> \endverbatim
*>
*> \param[in] INFO
*> \verbatim
*> INFO is INTEGER
*> The error return code from the calling subroutine. INFO
*> should equal the COMMON variable INFOT.
*> \endverbatim
*
* Authors:
* ========
*
*> \author Univ. of Tennessee
*> \author Univ. of California Berkeley
*> \author Univ. of Colorado Denver
*> \author NAG Ltd.
*
*> \ingroup aux_eig
*
*> \par Further Details:
* =====================
*>
*> \verbatim
*>
*> The following variables are passed via the common blocks INFOC and
*> SRNAMC:
*>
*> INFOT INTEGER Expected integer return code
*> NOUT INTEGER Unit number for printing error messages
*> OK LOGICAL Set to .TRUE. if INFO = INFOT and
*> SRNAME = SRNAMT, otherwise set to .FALSE.
*> LERR LOGICAL Set to .TRUE., indicating that XERBLA was called
*> SRNAMT CHARACTER*(*) Expected name of calling subroutine
*> \endverbatim
*>
* =====================================================================
SUBROUTINE XERBLA( SRNAME, INFO )
*
* -- 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*(*) SRNAME
INTEGER INFO
* ..
*
* =====================================================================
*
* .. Scalars in Common ..
LOGICAL LERR, OK
CHARACTER*32 SRNAMT
INTEGER INFOT, NOUT
* ..
* .. Intrinsic Functions ..
INTRINSIC LEN_TRIM
* ..
* .. Common blocks ..
COMMON / INFOC / INFOT, NOUT, OK, LERR
COMMON / SRNAMC / SRNAMT
* ..
* .. Executable Statements ..
*
LERR = .TRUE.
IF( INFO.NE.INFOT ) THEN
IF( INFOT.NE.0 ) THEN
WRITE( NOUT, FMT = 9999 )
$ SRNAMT( 1:LEN_TRIM( SRNAMT ) ), INFO, INFOT
ELSE
WRITE( NOUT, FMT = 9997 )
$ SRNAME( 1:LEN_TRIM( SRNAME ) ), INFO
END IF
OK = .FALSE.
END IF
IF( SRNAME.NE.SRNAMT ) THEN
WRITE( NOUT, FMT = 9998 )
$ SRNAME( 1:LEN_TRIM( SRNAME ) ),
$ SRNAMT( 1:LEN_TRIM( SRNAMT ) )
OK = .FALSE.
END IF
RETURN
*
9999 FORMAT( ' *** XERBLA was called from ', A, ' with INFO = ', I6,
$ ' instead of ', I2, ' ***' )
9998 FORMAT( ' *** XERBLA was called with SRNAME = ', A,
$ ' instead of ', A9, ' ***' )
9997 FORMAT( ' *** On entry to ', A, ' parameter number ', I6,
$ ' had an illegal value ***' )
*
* End of XERBLA
*
END
|
