ilauplo()

integer function ilauplo

(

character

uplo

)

ILAUPLO

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Purpose:

!>
!> This subroutine translated from a character string specifying a
!> upper- or lower-triangular matrix to the relevant BLAST-specified
!> integer constant.
!>
!> ILAUPLO returns an INTEGER.  If ILAUPLO < 0, then the input is not
!> a character indicating an upper- or lower-triangular matrix.
!> Otherwise ILAUPLO returns the constant value corresponding to UPLO.
!> 

Author

Univ. of Tennessee

Univ. of California Berkeley

Univ. of Colorado Denver

NAG Ltd.

Definition at line 55 of file ilauplo.f.

*
*  -- 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          UPLO
*     ..
*
*  =====================================================================
*
*     .. Parameters ..
      INTEGER BLAS_UPPER, BLAS_LOWER
      parameter( blas_upper = 121, blas_lower = 122 )
*     ..
*     .. External Functions ..
      LOGICAL            LSAME
      EXTERNAL           lsame
*     ..
*     .. Executable Statements ..
      IF( lsame( uplo, 'U' ) ) THEN
         ilauplo = blas_upper
      ELSE IF( lsame( uplo, 'L' ) ) THEN
         ilauplo = blas_lower
      ELSE
         ilauplo = -1
      END IF
      RETURN
*
*     End of ILAUPLO
*

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