LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dlarft()

lapack_int LAPACKE_dlarft ( int  matrix_layout,
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.

40 {
41  lapack_int ncols_v, nrows_v;
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_dlarft", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  if( LAPACKE_get_nancheck() ) {
48  /* Optionally check input matrices for NaNs */
49  ncols_v = LAPACKE_lsame( storev, 'c' ) ? k :
50  ( LAPACKE_lsame( storev, 'r' ) ? n : 1);
51  nrows_v = LAPACKE_lsame( storev, 'c' ) ? n :
52  ( LAPACKE_lsame( storev, 'r' ) ? k : 1);
53  if( LAPACKE_d_nancheck( k, tau, 1 ) ) {
54  return -8;
55  }
56  if( LAPACKE_dge_nancheck( matrix_layout, nrows_v, ncols_v, v, ldv ) ) {
57  return -6;
58  }
59  }
60 #endif
61  return LAPACKE_dlarft_work( matrix_layout, direct, storev, n, k, v, ldv, tau,
62  t, ldt );
63 }
lapack_int LAPACKE_dlarft_work(int matrix_layout, char direct, char storev, lapack_int n, lapack_int k, const double *v, lapack_int ldv, const double *tau, double *t, lapack_int ldt)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
int LAPACKE_get_nancheck()
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