You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
2.6 KiB
95 lines
2.6 KiB
*> \brief \b ILAPREC
|
|
*
|
|
* =========== DOCUMENTATION ===========
|
|
*
|
|
* Online html documentation available at
|
|
* http://www.netlib.org/lapack/explore-html/
|
|
*
|
|
*> \htmlonly
|
|
*> Download ILAPREC + dependencies
|
|
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/ilaprec.f">
|
|
*> [TGZ]</a>
|
|
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/ilaprec.f">
|
|
*> [ZIP]</a>
|
|
*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/ilaprec.f">
|
|
*> [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 auxOTHERcomputational
|
|
*
|
|
* =====================================================================
|
|
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
|
|
|