lapacke_slarft.c

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* Contents: Native high-level C interface to LAPACK function slarft
* Author: Intel Corporation
* Generated November 2015
*****************************************************************************/
 
#include "lapacke_utils.h"
 
lapack_int LAPACKE_slarft( int matrix_layout, char direct, char storev,
                           lapack_int n, lapack_int k, const float* v,
                           lapack_int ldv, const float* tau, float* t,
                           lapack_int ldt )
{
    lapack_int ncols_v, nrows_v;
    if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
        LAPACKE_xerbla( "LAPACKE_slarft", -1 );
        return -1;
    }
#ifndef LAPACK_DISABLE_NAN_CHECK
    if( LAPACKE_get_nancheck() ) {
        /* Optionally check input matrices for NaNs */
        ncols_v = LAPACKE_lsame( storev, 'c' ) ? k :
                             ( LAPACKE_lsame( storev, 'r' ) ? n : 1);
        nrows_v = LAPACKE_lsame( storev, 'c' ) ? n :
                             ( LAPACKE_lsame( storev, 'r' ) ? k : 1);
        if( LAPACKE_s_nancheck( k, tau, 1 ) ) {
            return -8;
        }
        if( LAPACKE_sge_nancheck( matrix_layout, nrows_v, ncols_v, v, ldv ) ) {
            return -6;
        }
    }
#endif
    return LAPACKE_slarft_work( matrix_layout, direct, storev, n, k, v, ldv, tau,
                                t, ldt );
}