LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ iladiag()

integer function iladiag ( character  DIAG)

ILADIAG

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Purpose:
 This subroutine translated from a character string specifying if a
 matrix has unit diagonal or not to the relevant BLAST-specified
 integer constant.

 ILADIAG returns an INTEGER.  If ILADIAG < 0, then the input is not a
 character indicating a unit or non-unit diagonal.  Otherwise ILADIAG
 returns the constant value corresponding to DIAG.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.

Definition at line 57 of file iladiag.f.

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 *
logical function lsame(CA, CB)
LSAME
Definition: lsame.f:53
integer function iladiag(DIAG)
ILADIAG
Definition: iladiag.f:58
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