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Annotation of rpl/lapack/lapack/iladiag.f, revision 1.6

1.1       bertrand    1: *> \brief \b ILADIAG
                      2: *
                      3: *  =========== DOCUMENTATION ===========
                      4: *
                      5: * Online html documentation available at 
                      6: *            http://www.netlib.org/lapack/explore-html/ 
                      7: *
                      8: *> \htmlonly
                      9: *> Download ILADIAG + dependencies 
                     10: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/iladiag.f"> 
                     11: *> [TGZ]</a> 
                     12: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/iladiag.f"> 
                     13: *> [ZIP]</a> 
                     14: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/iladiag.f"> 
                     15: *> [TXT]</a>
                     16: *> \endhtmlonly 
                     17: *
                     18: *  Definition:
                     19: *  ===========
                     20: *
                     21: *       INTEGER FUNCTION ILADIAG( DIAG )
                     22: * 
                     23: *       .. Scalar Arguments ..
                     24: *       CHARACTER          DIAG
                     25: *       ..
                     26: *  
                     27: *
                     28: *> \par Purpose:
                     29: *  =============
                     30: *>
                     31: *> \verbatim
                     32: *>
                     33: *> This subroutine translated from a character string specifying if a
                     34: *> matrix has unit diagonal or not to the relevant BLAST-specified
                     35: *> integer constant.
                     36: *>
                     37: *> ILADIAG returns an INTEGER.  If ILADIAG < 0, then the input is not a
                     38: *> character indicating a unit or non-unit diagonal.  Otherwise ILADIAG
                     39: *> returns the constant value corresponding to DIAG.
                     40: *> \endverbatim
                     41: *
                     42: *  Arguments:
                     43: *  ==========
                     44: *
                     45: *
                     46: *  Authors:
                     47: *  ========
                     48: *
                     49: *> \author Univ. of Tennessee 
                     50: *> \author Univ. of California Berkeley 
                     51: *> \author Univ. of Colorado Denver 
                     52: *> \author NAG Ltd. 
                     53: *
                     54: *> \date November 2011
                     55: *
                     56: *> \ingroup auxOTHERcomputational
                     57: *
                     58: *  =====================================================================
                     59:       INTEGER FUNCTION ILADIAG( DIAG )
                     60: *
                     61: *  -- LAPACK computational routine (version 3.4.0) --
                     62: *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
                     63: *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
                     64: *     November 2011
                     65: *
                     66: *     .. Scalar Arguments ..
                     67:       CHARACTER          DIAG
                     68: *     ..
                     69: *
                     70: *  =====================================================================
                     71: *
                     72: *     .. Parameters ..
                     73:       INTEGER BLAS_NON_UNIT_DIAG, BLAS_UNIT_DIAG
                     74:       PARAMETER ( BLAS_NON_UNIT_DIAG = 131, BLAS_UNIT_DIAG = 132 )
                     75: *     ..
                     76: *     .. External Functions ..
                     77:       LOGICAL            LSAME
                     78:       EXTERNAL           LSAME
                     79: *     ..
                     80: *     .. Executable Statements ..
                     81:       IF( LSAME( DIAG, 'N' ) ) THEN
                     82:          ILADIAG = BLAS_NON_UNIT_DIAG
                     83:       ELSE IF( LSAME( DIAG, 'U' ) ) THEN
                     84:          ILADIAG = BLAS_UNIT_DIAG
                     85:       ELSE
                     86:          ILADIAG = -1
                     87:       END IF
                     88:       RETURN
                     89: *
                     90: *     End of ILADIAG
                     91: *
                     92:       END