LAPACK 3.11.0 LAPACK: Linear Algebra PACKage
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## ◆ 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 35 of file lapacke_dlarft.c.

39{
40 lapack_int ncols_v, nrows_v;
41 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
42 LAPACKE_xerbla( "LAPACKE_dlarft", -1 );
43 return -1;
44 }
45#ifndef LAPACK_DISABLE_NAN_CHECK
46 if( LAPACKE_get_nancheck() ) {
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_d_nancheck( k, tau, 1 ) ) {
53 return -8;
54 }
55 if( LAPACKE_dge_nancheck( matrix_layout, nrows_v, ncols_v, v, ldv ) ) {
56 return -6;
57 }
58 }
59#endif
60 return LAPACKE_dlarft_work( matrix_layout, direct, storev, n, k, v, ldv, tau,
61 t, ldt );
62}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
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)
int LAPACKE_get_nancheck(void)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
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