lapacke_zlaswp.c

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*****************************************************************************
* Contents: Native high-level C interface to LAPACK function zlaswp
* Author: Intel Corporation
*****************************************************************************/
 
#include "lapacke_utils.h"
 
lapack_int LAPACKE_zlaswp( int matrix_layout, lapack_int n,
                           lapack_complex_double* a, lapack_int lda,
                           lapack_int k1, lapack_int k2, const lapack_int* ipiv,
                           lapack_int incx )
{
    if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
        LAPACKE_xerbla( "LAPACKE_zlaswp", -1 );
        return -1;
    }
#ifndef LAPACK_DISABLE_NAN_CHECK
    if( LAPACKE_get_nancheck() ) {
        /* Optionally check input matrices for NaNs */
    /*****************************************************************************
    *      Disable the check as is below, the check below was checking for NaN
    *      from lda to n since there is no (obvious) way to knowing m. This is not
    *      a good idea. We could get a lower bound of m by scanning from ipiv. Or
    *      we could pass on the NaN check to LAPACKE_dlaswp_work. For now disable
    *      the buggy Nan check.
    *      See forum: http://icl.cs.utk.edu/lapack-forum/viewtopic.php?t=4827
    *****************************************************************************/
    /*  if( LAPACKE_zge_nancheck( matrix_layout, lda, n, a, lda ) ) {
    *       return -3;
    *   }
    */
    }
#endif
    return LAPACKE_zlaswp_work( matrix_layout, n, a, lda, k1, k2, ipiv, incx );
}