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90 lines
2.3 KiB
90 lines
2.3 KiB
2 years ago
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*> \brief \b ILAUPLO
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*
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* =========== DOCUMENTATION ===========
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*
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* Online html documentation available at
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* http://www.netlib.org/lapack/explore-html/
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*
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*> \htmlonly
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*> Download ILAUPLO + dependencies
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*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/ilauplo.f">
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*> [TGZ]</a>
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*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/ilauplo.f">
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*> [ZIP]</a>
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*> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/ilauplo.f">
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*> [TXT]</a>
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*> \endhtmlonly
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*
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* Definition:
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* ===========
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*
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* INTEGER FUNCTION ILAUPLO( UPLO )
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*
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* .. Scalar Arguments ..
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* CHARACTER UPLO
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* ..
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*
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*
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*> \par Purpose:
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* =============
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*>
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*> \verbatim
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*>
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*> This subroutine translated from a character string specifying a
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*> upper- or lower-triangular matrix to the relevant BLAST-specified
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*> integer constant.
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*>
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*> ILAUPLO returns an INTEGER. If ILAUPLO < 0, then the input is not
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*> a character indicating an upper- or lower-triangular matrix.
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*> Otherwise ILAUPLO returns the constant value corresponding to UPLO.
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*> \endverbatim
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*
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* Arguments:
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* ==========
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*
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*
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* Authors:
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* ========
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*
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*> \author Univ. of Tennessee
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*> \author Univ. of California Berkeley
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*> \author Univ. of Colorado Denver
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*> \author NAG Ltd.
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*
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*> \ingroup auxOTHERcomputational
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*
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* =====================================================================
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INTEGER FUNCTION ILAUPLO( UPLO )
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*
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* -- LAPACK computational routine --
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* -- LAPACK is a software package provided by Univ. of Tennessee, --
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* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
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*
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* .. Scalar Arguments ..
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CHARACTER UPLO
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* ..
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*
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* =====================================================================
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*
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* .. Parameters ..
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INTEGER BLAS_UPPER, BLAS_LOWER
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PARAMETER ( BLAS_UPPER = 121, BLAS_LOWER = 122 )
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* ..
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* .. External Functions ..
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LOGICAL LSAME
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EXTERNAL LSAME
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* ..
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* .. Executable Statements ..
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IF( LSAME( UPLO, 'U' ) ) THEN
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ILAUPLO = BLAS_UPPER
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ELSE IF( LSAME( UPLO, 'L' ) ) THEN
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ILAUPLO = BLAS_LOWER
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ELSE
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ILAUPLO = -1
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END IF
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RETURN
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*
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* End of ILAUPLO
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*
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END
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