LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
Loading...
Searching...
No Matches

◆ LAPACKE_dgeqrfp()

lapack_int LAPACKE_dgeqrfp ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
double *  a,
lapack_int  lda,
double *  tau 
)

Definition at line 35 of file lapacke_dgeqrfp.c.

37{
38 lapack_int info = 0;
39 lapack_int lwork = -1;
40 double* work = NULL;
41 double work_query;
42 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43 LAPACKE_xerbla( "LAPACKE_dgeqrfp", -1 );
44 return -1;
45 }
46#ifndef LAPACK_DISABLE_NAN_CHECK
47 if( LAPACKE_get_nancheck() ) {
48 /* Optionally check input matrices for NaNs */
49 if( LAPACKE_dge_nancheck( matrix_layout, m, n, a, lda ) ) {
50 return -4;
51 }
52 }
53#endif
54 /* Query optimal working array(s) size */
55 info = LAPACKE_dgeqrfp_work( matrix_layout, m, n, a, lda, tau, &work_query,
56 lwork );
57 if( info != 0 ) {
58 goto exit_level_0;
59 }
60 lwork = (lapack_int)work_query;
61 /* Allocate memory for work arrays */
62 work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
63 if( work == NULL ) {
65 goto exit_level_0;
66 }
67 /* Call middle-level interface */
68 info = LAPACKE_dgeqrfp_work( matrix_layout, m, n, a, lda, tau, work, lwork );
69 /* Release memory and exit */
70 LAPACKE_free( work );
71exit_level_0:
72 if( info == LAPACK_WORK_MEMORY_ERROR ) {
73 LAPACKE_xerbla( "LAPACKE_dgeqrfp", info );
74 }
75 return info;
76}
#define lapack_int
Definition: lapack.h:87
lapack_int LAPACKE_dgeqrfp_work(int matrix_layout, lapack_int m, lapack_int n, double *a, lapack_int lda, double *tau, double *work, lapack_int lwork)
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
Here is the call graph for this function: