LAPACK  3.6.1 LAPACK: Linear Algebra PACKage
ilaprec.f
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1 *> \brief \b ILAPREC
2 *
3 * =========== DOCUMENTATION ===========
4 *
5 * Online html documentation available at
6 * http://www.netlib.org/lapack/explore-html/
7 *
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15 *> [TXT]</a>
16 *> \endhtmlonly
17 *
18 * Definition:
19 * ===========
20 *
21 * INTEGER FUNCTION ILAPREC( PREC )
22 *
23 * .. Scalar Arguments ..
24 * CHARACTER PREC
25 * ..
26 *
27 *
28 *> \par Purpose:
29 * =============
30 *>
31 *> \verbatim
32 *>
33 *> This subroutine translated from a character string specifying an
34 *> intermediate precision to the relevant BLAST-specified integer
35 *> constant.
36 *>
37 *> ILAPREC returns an INTEGER. If ILAPREC < 0, then the input is not a
38 *> character indicating a supported intermediate precision. Otherwise
39 *> ILAPREC returns the constant value corresponding to PREC.
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 ilaprec( PREC )
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 PREC
68 * ..
69 *
70 * =====================================================================
71 *
72 * .. Parameters ..
73  INTEGER BLAS_PREC_SINGLE, BLAS_PREC_DOUBLE, BLAS_PREC_INDIGENOUS,
74  \$ blas_prec_extra
75  parameter( blas_prec_single = 211, blas_prec_double = 212,
76  \$ blas_prec_indigenous = 213, blas_prec_extra = 214 )
77 * ..
78 * .. External Functions ..
79  LOGICAL LSAME
80  EXTERNAL lsame
81 * ..
82 * .. Executable Statements ..
83  IF( lsame( prec, 'S' ) ) THEN
84  ilaprec = blas_prec_single
85  ELSE IF( lsame( prec, 'D' ) ) THEN
86  ilaprec = blas_prec_double
87  ELSE IF( lsame( prec, 'I' ) ) THEN
88  ilaprec = blas_prec_indigenous
89  ELSE IF( lsame( prec, 'X' ) .OR. lsame( prec, 'E' ) ) THEN
90  ilaprec = blas_prec_extra
91  ELSE
92  ilaprec = -1
93  END IF
94  RETURN
95 *
96 * End of ILAPREC
97 *
98  END
integer function ilaprec(PREC)
ILAPREC
Definition: ilaprec.f:60