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119 lines
3.1 KiB
119 lines
3.1 KiB
*> \brief \b XERBLA_ARRAY
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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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* Definition:
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* ===========
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*
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* SUBROUTINE XERBLA_ARRAY(SRNAME_ARRAY, SRNAME_LEN, INFO)
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*
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* .. Scalar Arguments ..
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* INTEGER SRNAME_LEN, INFO
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* ..
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* .. Array Arguments ..
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* CHARACTER(1) SRNAME_ARRAY(SRNAME_LEN)
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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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*> XERBLA_ARRAY assists other languages in calling XERBLA, the LAPACK
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*> and BLAS error handler. Rather than taking a Fortran string argument
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*> as the function's name, XERBLA_ARRAY takes an array of single
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*> characters along with the array's length. XERBLA_ARRAY then copies
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*> up to 32 characters of that array into a Fortran string and passes
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*> that to XERBLA. If called with a non-positive SRNAME_LEN,
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*> XERBLA_ARRAY will call XERBLA with a string of all blank characters.
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*>
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*> Say some macro or other device makes XERBLA_ARRAY available to C99
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*> by a name lapack_xerbla and with a common Fortran calling convention.
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*> Then a C99 program could invoke XERBLA via:
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*> {
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*> int flen = strlen(__func__);
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*> lapack_xerbla(__func__, &flen, &info);
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*> }
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*>
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*> Providing XERBLA_ARRAY is not necessary for intercepting LAPACK
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*> errors. XERBLA_ARRAY calls XERBLA.
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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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*> \param[in] SRNAME_ARRAY
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*> \verbatim
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*> SRNAME_ARRAY is CHARACTER(1) array, dimension (SRNAME_LEN)
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*> The name of the routine which called XERBLA_ARRAY.
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*> \endverbatim
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*>
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*> \param[in] SRNAME_LEN
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*> \verbatim
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*> SRNAME_LEN is INTEGER
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*> The length of the name in SRNAME_ARRAY.
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*> \endverbatim
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*>
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*> \param[in] INFO
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*> \verbatim
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*> INFO is INTEGER
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*> The position of the invalid parameter in the parameter list
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*> of the calling routine.
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*> \endverbatim
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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 aux_blas
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*
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* =====================================================================
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SUBROUTINE XERBLA_ARRAY(SRNAME_ARRAY, SRNAME_LEN, INFO)
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*
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* -- Reference BLAS level1 routine --
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* -- Reference BLAS 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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INTEGER SRNAME_LEN, INFO
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* ..
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* .. Array Arguments ..
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CHARACTER(1) SRNAME_ARRAY(SRNAME_LEN)
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* ..
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*
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* =====================================================================
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*
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* ..
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* .. Local Scalars ..
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INTEGER I
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* ..
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* .. Local Arrays ..
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CHARACTER*32 SRNAME
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* ..
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* .. Intrinsic Functions ..
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INTRINSIC MIN, LEN
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* ..
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* .. External Functions ..
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EXTERNAL XERBLA
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* ..
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* .. Executable Statements ..
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SRNAME = ' '
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DO I = 1, MIN( SRNAME_LEN, LEN( SRNAME ) )
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SRNAME( I:I ) = SRNAME_ARRAY( I )
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END DO
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CALL XERBLA( SRNAME, INFO )
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RETURN
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*
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* End of XERBLA_ARRAY
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*
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END
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