Return to xerbla_array.f CVS log

Up to [local] / rpl / lapack / lapack

Annotation of rpl/lapack/lapack/xerbla_array.f, revision 1.3

1.1       bertrand    1: *> \brief \b XERBLA_ARRAY
                      2: *
                      3: *  =========== DOCUMENTATION ===========
                      4: *
                      5: * Online html documentation available at 
                      6: *            http://www.netlib.org/lapack/explore-html/ 
                      7: *
                      8: *> \htmlonly
                      9: *> Download XERBLA_ARRAY + dependencies 
                     10: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/xerbla_array.f"> 
                     11: *> [TGZ]</a> 
                     12: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/xerbla_array.f"> 
                     13: *> [ZIP]</a> 
                     14: *> <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/xerbla_array.f"> 
                     15: *> [TXT]</a>
                     16: *> \endhtmlonly 
                     17: *
                     18: *  Definition:
                     19: *  ===========
                     20: *
                     21: *       SUBROUTINE XERBLA_ARRAY( SRNAME_ARRAY, SRNAME_LEN, INFO)
                     22: * 
                     23: *       .. Scalar Arguments ..
                     24: *       INTEGER SRNAME_LEN, INFO
                     25: *       ..
                     26: *       .. Array Arguments ..
                     27: *       CHARACTER(1) SRNAME_ARRAY(SRNAME_LEN)
                     28: *       ..
                     29: *  
                     30: *
                     31: *> \par Purpose:
                     32: *  =============
                     33: *>
                     34: *> \verbatim
                     35: *>
                     36: *> XERBLA_ARRAY assists other languages in calling XERBLA, the LAPACK
                     37: *> and BLAS error handler.  Rather than taking a Fortran string argument
                     38: *> as the function's name, XERBLA_ARRAY takes an array of single
                     39: *> characters along with the array's length.  XERBLA_ARRAY then copies
                     40: *> up to 32 characters of that array into a Fortran string and passes
                     41: *> that to XERBLA.  If called with a non-positive SRNAME_LEN,
                     42: *> XERBLA_ARRAY will call XERBLA with a string of all blank characters.
                     43: *>
                     44: *> Say some macro or other device makes XERBLA_ARRAY available to C99
                     45: *> by a name lapack_xerbla and with a common Fortran calling convention.
                     46: *> Then a C99 program could invoke XERBLA via:
                     47: *>    {
                     48: *>      int flen = strlen(__func__);
                     49: *>      lapack_xerbla(__func__, &flen, &info);
                     50: *>    }
                     51: *>
                     52: *> Providing XERBLA_ARRAY is not necessary for intercepting LAPACK
                     53: *> errors.  XERBLA_ARRAY calls XERBLA.
                     54: *> \endverbatim
                     55: *
                     56: *  Arguments:
                     57: *  ==========
                     58: *
                     59: *> \param[in] SRNAME_ARRAY
                     60: *> \verbatim
                     61: *>          SRNAME_ARRAY is CHARACTER(1) array, dimension (SRNAME_LEN)
                     62: *>          The name of the routine which called XERBLA_ARRAY.
                     63: *> \endverbatim
                     64: *>
                     65: *> \param[in] SRNAME_LEN
                     66: *> \verbatim
                     67: *>          SRNAME_LEN is INTEGER
                     68: *>          The length of the name in SRNAME_ARRAY.
                     69: *> \endverbatim
                     70: *>
                     71: *> \param[in] INFO
                     72: *> \verbatim
                     73: *>          INFO is INTEGER
                     74: *>          The position of the invalid parameter in the parameter list
                     75: *>          of the calling routine.
                     76: *> \endverbatim
                     77: *
                     78: *  Authors:
                     79: *  ========
                     80: *
                     81: *> \author Univ. of Tennessee 
                     82: *> \author Univ. of California Berkeley 
                     83: *> \author Univ. of Colorado Denver 
                     84: *> \author NAG Ltd. 
                     85: *
                     86: *> \date November 2011
                     87: *
                     88: *> \ingroup auxOTHERauxiliary
                     89: *
                     90: *  =====================================================================
                     91:       SUBROUTINE XERBLA_ARRAY( SRNAME_ARRAY, SRNAME_LEN, INFO)
                     92: *
                     93: *  -- LAPACK auxiliary routine (version 3.4.0) --
                     94: *  -- LAPACK is a software package provided by Univ. of Tennessee,    --
                     95: *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
                     96: *     November 2011
                     97: *
                     98: *     .. Scalar Arguments ..
                     99:       INTEGER SRNAME_LEN, INFO
                    100: *     ..
                    101: *     .. Array Arguments ..
                    102:       CHARACTER(1) SRNAME_ARRAY(SRNAME_LEN)
                    103: *     ..
                    104: *
                    105: * =====================================================================
                    106: *
                    107: *     ..
                    108: *     .. Local Scalars ..
                    109:       INTEGER I
                    110: *     ..
                    111: *     .. Local Arrays ..
                    112:       CHARACTER*32 SRNAME
                    113: *     ..
                    114: *     .. Intrinsic Functions ..
                    115:       INTRINSIC MIN, LEN
                    116: *     ..
                    117: *     .. External Functions ..
                    118:       EXTERNAL XERBLA
                    119: *     ..
                    120: *     .. Executable Statements ..
                    121:       SRNAME = ''
                    122:       DO I = 1, MIN( SRNAME_LEN, LEN( SRNAME ) )
                    123:          SRNAME( I:I ) = SRNAME_ARRAY( I )
                    124:       END DO
                    125: 
                    126:       CALL XERBLA( SRNAME, INFO )
                    127: 
                    128:       RETURN
                    129:       END