LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sormlq()

lapack_int LAPACKE_sormlq ( int  matrix_layout,
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_sormlq.c.

39 {
40  lapack_int info = 0;
41  lapack_int lwork = -1;
42  float* work = NULL;
43  float work_query;
44  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_sormlq", -1 );
46  return -1;
47  }
48 #ifndef LAPACK_DISABLE_NAN_CHECK
49  if( LAPACKE_get_nancheck() ) {
50  /* Optionally check input matrices for NaNs */
51  lapack_int r = LAPACKE_lsame( side, 'l' ) ? m : n;
52  if( LAPACKE_sge_nancheck( matrix_layout, k, r, a, lda ) ) {
53  return -7;
54  }
55  if( LAPACKE_sge_nancheck( matrix_layout, m, n, c, ldc ) ) {
56  return -10;
57  }
58  if( LAPACKE_s_nancheck( k, tau, 1 ) ) {
59  return -9;
60  }
61  }
62 #endif
63  /* Query optimal working array(s) size */
64  info = LAPACKE_sormlq_work( matrix_layout, side, trans, m, n, k, a, lda, tau,
65  c, ldc, &work_query, lwork );
66  if( info != 0 ) {
67  goto exit_level_0;
68  }
69  lwork = (lapack_int)work_query;
70  /* Allocate memory for work arrays */
71  work = (float*)LAPACKE_malloc( sizeof(float) * lwork );
72  if( work == NULL ) {
74  goto exit_level_0;
75  }
76  /* Call middle-level interface */
77  info = LAPACKE_sormlq_work( matrix_layout, side, trans, m, n, k, a, lda, tau,
78  c, ldc, work, lwork );
79  /* Release memory and exit */
80  LAPACKE_free( work );
81 exit_level_0:
82  if( info == LAPACK_WORK_MEMORY_ERROR ) {
83  LAPACKE_xerbla( "LAPACKE_sormlq", info );
84  }
85  return info;
86 }
#define lapack_int
Definition: lapack.h:83
#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_sormlq_work(int matrix_layout, 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)
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)
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