lapacke_slaswp.c File Reference

#include "lapacke_utils.h"

Go to the source code of this file.

Functions
lapack_int	LAPACKE_slaswp (int matrix_layout, lapack_int n, float *a, lapack_int lda, lapack_int k1, lapack_int k2, const lapack_int *ipiv, lapack_int incx)

Function Documentation

LAPACKE_slaswp()

lapack_int LAPACKE_slaswp	(	int	matrix_layout,
		lapack_int	n,
		float *	a,
		lapack_int	lda,
		lapack_int	k1,
		lapack_int	k2,
		const lapack_int *	ipiv,
		lapack_int	incx )

Definition at line 35 of file lapacke_slaswp.c.

{
    if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
        LAPACKE_xerbla( "LAPACKE_slaswp", -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_sge_nancheck( matrix_layout, lda, n, a, lda ) ) {
    *       return -3;
    *   }
    */
    }
#endif
    return LAPACKE_slaswp_work( matrix_layout, n, a, lda, k1, k2, ipiv, incx );
}