LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zunmrz()

lapack_int LAPACKE_zunmrz ( int  matrix_layout,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
lapack_int  l,
const lapack_complex_double a,
lapack_int  lda,
const lapack_complex_double tau,
lapack_complex_double c,
lapack_int  ldc 
)

Definition at line 36 of file lapacke_zunmrz.c.

41 {
42  lapack_int info = 0;
43  lapack_int lwork = -1;
44  lapack_complex_double* work = NULL;
45  lapack_complex_double work_query;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_zunmrz", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  /* Optionally check input matrices for NaNs */
52  if( LAPACKE_zge_nancheck( matrix_layout, k, m, a, lda ) ) {
53  return -8;
54  }
55  if( LAPACKE_zge_nancheck( matrix_layout, m, n, c, ldc ) ) {
56  return -11;
57  }
58  if( LAPACKE_z_nancheck( k, tau, 1 ) ) {
59  return -10;
60  }
61 #endif
62  /* Query optimal working array(s) size */
63  info = LAPACKE_zunmrz_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_Z2INT( work_query );
69  /* Allocate memory for work arrays */
70  work = (lapack_complex_double*)
71  LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
72  if( work == NULL ) {
74  goto exit_level_0;
75  }
76  /* Call middle-level interface */
77  info = LAPACKE_zunmrz_work( matrix_layout, side, trans, m, n, k, l, a, lda,
78  tau, 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_zunmrz", info );
84  }
85  return info;
86 }
#define LAPACK_Z2INT(x)
Definition: lapacke.h:117
lapack_logical LAPACKE_z_nancheck(lapack_int n, const lapack_complex_double *x, lapack_int incx)
#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_double
Definition: lapacke.h:90
lapack_int LAPACKE_zunmrz_work(int matrix_layout, char side, char trans, lapack_int m, lapack_int n, lapack_int k, lapack_int l, const lapack_complex_double *a, lapack_int lda, const lapack_complex_double *tau, lapack_complex_double *c, lapack_int ldc, lapack_complex_double *work, lapack_int lwork)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
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