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    1: *> \brief \b XERBLA
    2: *
    3: *  =========== DOCUMENTATION ===========
    4: *
    5: * Online html documentation available at
    6: *            http://www.netlib.org/lapack/explore-html/
    7: *
    8: *> \htmlonly
    9: *> Download XERBLA + dependencies
   10: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/xerbla.f">
   11: *> [TGZ]</a>
   12: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/xerbla.f">
   13: *> [ZIP]</a>
   14: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/xerbla.f">
   15: *> [TXT]</a>
   16: *> \endhtmlonly
   17: *
   18: *  Definition:
   19: *  ===========
   20: *
   21: *       SUBROUTINE XERBLA( SRNAME, INFO )
   22: *
   23: *       .. Scalar Arguments ..
   24: *       CHARACTER*(*)      SRNAME
   25: *       INTEGER            INFO
   26: *       ..
   27: *
   28: *
   29: *> \par Purpose:
   30: *  =============
   31: *>
   32: *> \verbatim
   33: *>
   34: *> XERBLA  is an error handler for the LAPACK routines.
   35: *> It is called by an LAPACK routine if an input parameter has an
   36: *> invalid value.  A message is printed and execution stops.
   37: *>
   38: *> Installers may consider modifying the STOP statement in order to
   39: *> call system-specific exception-handling facilities.
   40: *> \endverbatim
   41: *
   42: *  Arguments:
   43: *  ==========
   44: *
   45: *> \param[in] SRNAME
   46: *> \verbatim
   47: *>          SRNAME is CHARACTER*(*)
   48: *>          The name of the routine which called XERBLA.
   49: *> \endverbatim
   50: *>
   51: *> \param[in] INFO
   52: *> \verbatim
   53: *>          INFO is INTEGER
   54: *>          The position of the invalid parameter in the parameter list
   55: *>          of the calling routine.
   56: *> \endverbatim
   57: *
   58: *  Authors:
   59: *  ========
   60: *
   61: *> \author Univ. of Tennessee
   62: *> \author Univ. of California Berkeley
   63: *> \author Univ. of Colorado Denver
   64: *> \author NAG Ltd.
   65: *
   66: *> \ingroup OTHERauxiliary
   67: *
   68: *  =====================================================================
   69:       SUBROUTINE XERBLA( SRNAME, INFO )
   70: *
   71: *  -- LAPACK auxiliary routine --
   72: *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
   73: *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
   74: *
   75: *     .. Scalar Arguments ..
   76:       CHARACTER*(*)      SRNAME
   77:       INTEGER            INFO
   78: *     ..
   79: *
   80: * =====================================================================
   81: *
   82: *     .. Intrinsic Functions ..
   83:       INTRINSIC          LEN_TRIM
   84: *     ..
   85: *     .. Executable Statements ..
   86: *
   87:       WRITE( *, FMT = 9999 )SRNAME( 1:LEN_TRIM( SRNAME ) ), INFO
   88: *
   89:       STOP
   90: *
   91:  9999 FORMAT( ' ** On entry to ', A, ' parameter number ', I2, ' had ',
   92:      $      'an illegal value' )
   93: *
   94: *     End of XERBLA
   95: *
   96:       END