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
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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*> \ingroup auxOTHERcomputational
55*
56*  =====================================================================
57      INTEGER FUNCTION ILADIAG( DIAG )
58*
59*  -- LAPACK computational routine --
60*  -- LAPACK is a software package provided by Univ. of Tennessee,    --
61*  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
62*
63*     .. Scalar Arguments ..
64      CHARACTER          DIAG
65*     ..
66*
67*  =====================================================================
68*
69*     .. Parameters ..
70      INTEGER BLAS_NON_UNIT_DIAG, BLAS_UNIT_DIAG
71      PARAMETER ( BLAS_NON_UNIT_DIAG = 131, BLAS_UNIT_DIAG = 132 )
72*     ..
73*     .. External Functions ..
74      LOGICAL            LSAME
75      EXTERNAL           LSAME
76*     ..
77*     .. Executable Statements ..
78      IF( LSAME( DIAG, 'N' ) ) THEN
79         ILADIAG = BLAS_NON_UNIT_DIAG
80      ELSE IF( LSAME( DIAG, 'U' ) ) THEN
81         ILADIAG = BLAS_UNIT_DIAG
82      ELSE
83         ILADIAG = -1
84      END IF
85      RETURN
86*
87*     End of ILADIAG
88*
89      END
90