LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cunmbr()

lapack_int LAPACKE_cunmbr ( int  matrix_layout,
char  vect,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
const lapack_complex_float a,
lapack_int  lda,
const lapack_complex_float tau,
lapack_complex_float c,
lapack_int  ldc 
)

Definition at line 36 of file lapacke_cunmbr.c.

41 {
42  lapack_int info = 0;
43  lapack_int lwork = -1;
44  lapack_complex_float* work = NULL;
45  lapack_complex_float work_query;
46  lapack_int nq, r;
47  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48  LAPACKE_xerbla( "LAPACKE_cunmbr", -1 );
49  return -1;
50  }
51 #ifndef LAPACK_DISABLE_NAN_CHECK
52  if( LAPACKE_get_nancheck() ) {
53  /* Optionally check input matrices for NaNs */
54  nq = LAPACKE_lsame( side, 'l' ) ? m : n;
55  r = LAPACKE_lsame( vect, 'q' ) ? nq : MIN(nq,k);
56  if( LAPACKE_cge_nancheck( matrix_layout, r, MIN(nq,k), a, lda ) ) {
57  return -8;
58  }
59  if( LAPACKE_cge_nancheck( matrix_layout, m, n, c, ldc ) ) {
60  return -11;
61  }
62  if( LAPACKE_c_nancheck( MIN(nq,k), tau, 1 ) ) {
63  return -10;
64  }
65  }
66 #endif
67  /* Query optimal working array(s) size */
68  info = LAPACKE_cunmbr_work( matrix_layout, vect, side, trans, m, n, k, a,
69  lda, tau, c, ldc, &work_query, lwork );
70  if( info != 0 ) {
71  goto exit_level_0;
72  }
73  lwork = LAPACK_C2INT( work_query );
74  /* Allocate memory for work arrays */
75  work = (lapack_complex_float*)
76  LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
77  if( work == NULL ) {
79  goto exit_level_0;
80  }
81  /* Call middle-level interface */
82  info = LAPACKE_cunmbr_work( matrix_layout, vect, side, trans, m, n, k, a,
83  lda, tau, c, ldc, work, lwork );
84  /* Release memory and exit */
85  LAPACKE_free( work );
86 exit_level_0:
87  if( info == LAPACK_WORK_MEMORY_ERROR ) {
88  LAPACKE_xerbla( "LAPACKE_cunmbr", info );
89  }
90  return info;
91 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
#define MIN(x, y)
Definition: lapacke_utils.h:50
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
lapack_logical LAPACKE_c_nancheck(lapack_int n, const lapack_complex_float *x, lapack_int incx)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_C2INT(x)
Definition: lapacke.h:116
lapack_int LAPACKE_cunmbr_work(int matrix_layout, char vect, char side, char trans, lapack_int m, lapack_int n, lapack_int k, const lapack_complex_float *a, lapack_int lda, const lapack_complex_float *tau, lapack_complex_float *c, lapack_int ldc, lapack_complex_float *work, lapack_int lwork)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
int LAPACKE_get_nancheck()
Here is the call graph for this function: