LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dormrz()

lapack_int LAPACKE_dormrz ( int  matrix_layout,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
lapack_int  l,
const double *  a,
lapack_int  lda,
const double *  tau,
double *  c,
lapack_int  ldc 
)

Definition at line 35 of file lapacke_dormrz.c.

39 {
40  lapack_int info = 0;
41  lapack_int lwork = -1;
42  double* work = NULL;
43  double work_query;
44  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_dormrz", -1 );
46  return -1;
47  }
48 #ifndef LAPACK_DISABLE_NAN_CHECK
49  if( LAPACKE_get_nancheck() ) {
50  /* Optionally check input matrices for NaNs */
51  if( LAPACKE_dge_nancheck( matrix_layout, k, m, a, lda ) ) {
52  return -8;
53  }
54  if( LAPACKE_dge_nancheck( matrix_layout, m, n, c, ldc ) ) {
55  return -11;
56  }
57  if( LAPACKE_d_nancheck( k, tau, 1 ) ) {
58  return -10;
59  }
60  }
61 #endif
62  /* Query optimal working array(s) size */
63  info = LAPACKE_dormrz_work( matrix_layout, side, trans, m, n, k, l, a, lda,
64  tau, c, ldc, &work_query, lwork );
65  if( info != 0 ) {
66  goto exit_level_0;
67  }
68  lwork = (lapack_int)work_query;
69  /* Allocate memory for work arrays */
70  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
71  if( work == NULL ) {
73  goto exit_level_0;
74  }
75  /* Call middle-level interface */
76  info = LAPACKE_dormrz_work( matrix_layout, side, trans, m, n, k, l, a, lda,
77  tau, c, ldc, work, lwork );
78  /* Release memory and exit */
79  LAPACKE_free( work );
80 exit_level_0:
81  if( info == LAPACK_WORK_MEMORY_ERROR ) {
82  LAPACKE_xerbla( "LAPACKE_dormrz", info );
83  }
84  return info;
85 }
#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
lapack_int LAPACKE_dormrz_work(int matrix_layout, char side, char trans, lapack_int m, lapack_int n, lapack_int k, lapack_int l, const double *a, lapack_int lda, const double *tau, double *c, lapack_int ldc, double *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
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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