ilaprec.f

*> \brief \b ILAPREC
*
*  =========== DOCUMENTATION ===========
*
* Online html documentation available at
*            http://www.netlib.org/lapack/explore-html/
*
*> \htmlonly
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*> [TXT]</a>
*> \endhtmlonly
*
*  Definition:
*  ===========
*
*       INTEGER FUNCTION ILAPREC( PREC )
*
*       .. Scalar Arguments ..
*       CHARACTER          PREC
*       ..
*
*
*> \par Purpose:
*  =============
*>
*> \verbatim
*>
*> This subroutine translated from a character string specifying an
*> intermediate precision to the relevant BLAST-specified integer
*> constant.
*>
*> ILAPREC returns an INTEGER.  If ILAPREC < 0, then the input is not a
*> character indicating a supported intermediate precision.  Otherwise
*> ILAPREC returns the constant value corresponding to PREC.
*> \endverbatim
*
*  Arguments:
*  ==========
*
*
*  Authors:
*  ========
*
*> \author Univ. of Tennessee
*> \author Univ. of California Berkeley
*> \author Univ. of Colorado Denver
*> \author NAG Ltd.
*
*> \ingroup ilaprec
*
*  =====================================================================
      INTEGER FUNCTION ilaprec( PREC )
*
*  -- LAPACK computational 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          PREC
*     ..
*
*  =====================================================================
*
*     .. Parameters ..
      INTEGER BLAS_PREC_SINGLE, BLAS_PREC_DOUBLE, BLAS_PREC_INDIGENOUS,
     $           blas_prec_extra
      parameter( blas_prec_single = 211, blas_prec_double = 212,
     $     blas_prec_indigenous = 213, blas_prec_extra = 214 )
*     ..
*     .. External Functions ..
      LOGICAL            LSAME
      EXTERNAL           lsame
*     ..
*     .. Executable Statements ..
      IF( lsame( prec, 'S' ) ) THEN
         ilaprec = blas_prec_single
      ELSE IF( lsame( prec, 'D' ) ) THEN
         ilaprec = blas_prec_double
      ELSE IF( lsame( prec, 'I' ) ) THEN
         ilaprec = blas_prec_indigenous
      ELSE IF( lsame( prec, 'X' ) .OR. lsame( prec, 'E' ) ) THEN
         ilaprec = blas_prec_extra
      ELSE
         ilaprec = -1
      END IF
      RETURN
*
*     End of ILAPREC
*
      END