LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_sormbr()

lapack_int LAPACKE_sormbr ( int  matrix_layout,
char  vect,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
const float *  a,
lapack_int  lda,
const float *  tau,
float *  c,
lapack_int  ldc 
)

Definition at line 35 of file lapacke_sormbr.c.

39{
40 lapack_int info = 0;
41 lapack_int lwork = -1;
42 float* work = NULL;
43 float work_query;
44 lapack_int nq, ar, ac;
45 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46 LAPACKE_xerbla( "LAPACKE_sormbr", -1 );
47 return -1;
48 }
49#ifndef LAPACK_DISABLE_NAN_CHECK
50 if( LAPACKE_get_nancheck() ) {
51 /* Optionally check input matrices for NaNs */
52 nq = LAPACKE_lsame( side, 'l' ) ? m : n;
53 ar = LAPACKE_lsame( vect, 'q' ) ? nq : MIN(nq,k);
54 ac = LAPACKE_lsame( vect, 'q' ) ? MIN(nq,k) : nq;
55 if( LAPACKE_sge_nancheck( matrix_layout, ar, ac, a, lda ) ) {
56 return -8;
57 }
58 if( LAPACKE_sge_nancheck( matrix_layout, m, n, c, ldc ) ) {
59 return -11;
60 }
61 if( LAPACKE_s_nancheck( MIN(nq,k), tau, 1 ) ) {
62 return -10;
63 }
64 }
65#endif
66 /* Query optimal working array(s) size */
67 info = LAPACKE_sormbr_work( matrix_layout, vect, side, trans, m, n, k, a,
68 lda, tau, c, ldc, &work_query, lwork );
69 if( info != 0 ) {
70 goto exit_level_0;
71 }
72 lwork = (lapack_int)work_query;
73 /* Allocate memory for work arrays */
74 work = (float*)LAPACKE_malloc( sizeof(float) * lwork );
75 if( work == NULL ) {
77 goto exit_level_0;
78 }
79 /* Call middle-level interface */
80 info = LAPACKE_sormbr_work( matrix_layout, vect, side, trans, m, n, k, a,
81 lda, tau, c, ldc, work, lwork );
82 /* Release memory and exit */
83 LAPACKE_free( work );
84exit_level_0:
85 if( info == LAPACK_WORK_MEMORY_ERROR ) {
86 LAPACKE_xerbla( "LAPACKE_sormbr", info );
87 }
88 return info;
89}
#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
lapack_int LAPACKE_sormbr_work(int matrix_layout, char vect, char side, char trans, lapack_int m, lapack_int n, lapack_int k, const float *a, lapack_int lda, const float *tau, float *c, lapack_int ldc, float *work, lapack_int lwork)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
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_s_nancheck(lapack_int n, const float *x, lapack_int incx)
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
#define MIN(x, y)
Definition: lapacke_utils.h:49
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