LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_slarft()

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 
)

Definition at line 36 of file lapacke_slarft.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_slarft", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  /* Optionally check input matrices for NaNs */
48  ncols_v = LAPACKE_lsame( storev, 'c' ) ? k :
49  ( LAPACKE_lsame( storev, 'r' ) ? n : 1);
50  nrows_v = LAPACKE_lsame( storev, 'c' ) ? n :
51  ( LAPACKE_lsame( storev, 'r' ) ? k : 1);
52  if( LAPACKE_s_nancheck( k, tau, 1 ) ) {
53  return -8;
54  }
55  if( LAPACKE_sge_nancheck( matrix_layout, nrows_v, ncols_v, v, ldv ) ) {
56  return -6;
57  }
58 #endif
59  return LAPACKE_slarft_work( matrix_layout, direct, storev, n, k, v, ldv, tau,
60  t, ldt );
61 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
lapack_int LAPACKE_slarft_work(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_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
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