LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_dorgbr()

lapack_int LAPACKE_dorgbr ( int  matrix_layout,
char  vect,
lapack_int  m,
lapack_int  n,
lapack_int  k,
double *  a,
lapack_int  lda,
const double *  tau 
)

Definition at line 35 of file lapacke_dorgbr.c.

38{
39 lapack_int info = 0;
40 lapack_int lwork = -1;
41 double* work = NULL;
42 double work_query;
43 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
44 LAPACKE_xerbla( "LAPACKE_dorgbr", -1 );
45 return -1;
46 }
47#ifndef LAPACK_DISABLE_NAN_CHECK
48 if( LAPACKE_get_nancheck() ) {
49 /* Optionally check input matrices for NaNs */
50 if( LAPACKE_dge_nancheck( matrix_layout, m, n, a, lda ) ) {
51 return -6;
52 }
53 if( LAPACKE_d_nancheck( MIN(m,k), tau, 1 ) ) {
54 return -8;
55 }
56 }
57#endif
58 /* Query optimal working array(s) size */
59 info = LAPACKE_dorgbr_work( matrix_layout, vect, m, n, k, a, lda, tau,
60 &work_query, lwork );
61 if( info != 0 ) {
62 goto exit_level_0;
63 }
64 lwork = (lapack_int)work_query;
65 /* Allocate memory for work arrays */
66 work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
67 if( work == NULL ) {
69 goto exit_level_0;
70 }
71 /* Call middle-level interface */
72 info = LAPACKE_dorgbr_work( matrix_layout, vect, m, n, k, a, lda, tau, work,
73 lwork );
74 /* Release memory and exit */
75 LAPACKE_free( work );
76exit_level_0:
77 if( info == LAPACK_WORK_MEMORY_ERROR ) {
78 LAPACKE_xerbla( "LAPACKE_dorgbr", info );
79 }
80 return info;
81}
#define lapack_int
Definition: lapack.h:87
#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
lapack_int LAPACKE_dorgbr_work(int matrix_layout, char vect, lapack_int m, lapack_int n, lapack_int k, double *a, lapack_int lda, const double *tau, double *work, lapack_int lwork)
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_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define MIN(x, y)
Definition: lapacke_utils.h:49
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
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