*> \brief \b XERBLA_ARRAY * * =========== DOCUMENTATION =========== * * Online html documentation available at * http://www.netlib.org/lapack/explore-html/ * *> \htmlonly *> Download XERBLA_ARRAY + dependencies *> *> [TGZ] *> *> [ZIP] *> *> [TXT] *> \endhtmlonly * * Definition: * =========== * * SUBROUTINE XERBLA_ARRAY( SRNAME_ARRAY, SRNAME_LEN, INFO) * * .. Scalar Arguments .. * INTEGER SRNAME_LEN, INFO * .. * .. Array Arguments .. * CHARACTER(1) SRNAME_ARRAY(SRNAME_LEN) * .. * * *> \par Purpose: * ============= *> *> \verbatim *> *> XERBLA_ARRAY assists other languages in calling XERBLA, the LAPACK *> and BLAS error handler. Rather than taking a Fortran string argument *> as the function's name, XERBLA_ARRAY takes an array of single *> characters along with the array's length. XERBLA_ARRAY then copies *> up to 32 characters of that array into a Fortran string and passes *> that to XERBLA. If called with a non-positive SRNAME_LEN, *> XERBLA_ARRAY will call XERBLA with a string of all blank characters. *> *> Say some macro or other device makes XERBLA_ARRAY available to C99 *> by a name lapack_xerbla and with a common Fortran calling convention. *> Then a C99 program could invoke XERBLA via: *> { *> int flen = strlen(__func__); *> lapack_xerbla(__func__, &flen, &info); *> } *> *> Providing XERBLA_ARRAY is not necessary for intercepting LAPACK *> errors. XERBLA_ARRAY calls XERBLA. *> \endverbatim * * Arguments: * ========== * *> \param[in] SRNAME_ARRAY *> \verbatim *> SRNAME_ARRAY is CHARACTER(1) array, dimension (SRNAME_LEN) *> The name of the routine which called XERBLA_ARRAY. *> \endverbatim *> *> \param[in] SRNAME_LEN *> \verbatim *> SRNAME_LEN is INTEGER *> The length of the name in SRNAME_ARRAY. *> \endverbatim *> *> \param[in] INFO *> \verbatim *> INFO is INTEGER *> The position of the invalid parameter in the parameter list *> of the calling routine. *> \endverbatim * * Authors: * ======== * *> \author Univ. of Tennessee *> \author Univ. of California Berkeley *> \author Univ. of Colorado Denver *> \author NAG Ltd. * *> \date December 2016 * *> \ingroup OTHERauxiliary * * ===================================================================== SUBROUTINE XERBLA_ARRAY( SRNAME_ARRAY, SRNAME_LEN, INFO) * * -- LAPACK auxiliary routine (version 3.7.0) -- * -- LAPACK is a software package provided by Univ. of Tennessee, -- * -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- * December 2016 * * .. Scalar Arguments .. INTEGER SRNAME_LEN, INFO * .. * .. Array Arguments .. CHARACTER(1) SRNAME_ARRAY(SRNAME_LEN) * .. * * ===================================================================== * * .. * .. Local Scalars .. INTEGER I * .. * .. Local Arrays .. CHARACTER*32 SRNAME * .. * .. Intrinsic Functions .. INTRINSIC MIN, LEN * .. * .. External Functions .. EXTERNAL XERBLA * .. * .. Executable Statements .. SRNAME = '' DO I = 1, MIN( SRNAME_LEN, LEN( SRNAME ) ) SRNAME( I:I ) = SRNAME_ARRAY( I ) END DO CALL XERBLA( SRNAME, INFO ) RETURN END