LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
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lapacke_dlarft.c File Reference
#include "lapacke_utils.h"
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Functions/Subroutines

lapack_int LAPACKE_dlarft (int matrix_order, char direct, char storev, lapack_int n, lapack_int k, const double *v, lapack_int ldv, const double *tau, double *t, lapack_int ldt)

Function/Subroutine Documentation

lapack_int LAPACKE_dlarft ( int  matrix_order,
char  direct,
char  storev,
lapack_int  n,
lapack_int  k,
const double *  v,
lapack_int  ldv,
const double *  tau,
double *  t,
lapack_int  ldt 
)

Definition at line 36 of file lapacke_dlarft.c.

{
lapack_int ncols_v, nrows_v;
if( matrix_order != LAPACK_COL_MAJOR && matrix_order != LAPACK_ROW_MAJOR ) {
LAPACKE_xerbla( "LAPACKE_dlarft", -1 );
return -1;
}
#ifndef LAPACK_DISABLE_NAN_CHECK
/* 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_d_nancheck( k, tau, 1 ) ) {
return -8;
}
if( LAPACKE_dge_nancheck( matrix_order, nrows_v, ncols_v, v, ldv ) ) {
return -6;
}
#endif
return LAPACKE_dlarft_work( matrix_order, direct, storev, n, k, v, ldv, tau,
t, ldt );
}

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