LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zggqrf()

lapack_int LAPACKE_zggqrf ( int  matrix_layout,
lapack_int  n,
lapack_int  m,
lapack_int  p,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double taua,
lapack_complex_double b,
lapack_int  ldb,
lapack_complex_double taub 
)

Definition at line 35 of file lapacke_zggqrf.c.

40 {
41  lapack_int info = 0;
42  lapack_int lwork = -1;
43  lapack_complex_double* work = NULL;
44  lapack_complex_double work_query;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_zggqrf", -1 );
47  return -1;
48  }
49 #ifndef LAPACK_DISABLE_NAN_CHECK
50  if( LAPACKE_get_nancheck() ) {
51  /* Optionally check input matrices for NaNs */
52  if( LAPACKE_zge_nancheck( matrix_layout, n, m, a, lda ) ) {
53  return -5;
54  }
55  if( LAPACKE_zge_nancheck( matrix_layout, n, p, b, ldb ) ) {
56  return -8;
57  }
58  }
59 #endif
60  /* Query optimal working array(s) size */
61  info = LAPACKE_zggqrf_work( matrix_layout, n, m, p, a, lda, taua, b, ldb,
62  taub, &work_query, lwork );
63  if( info != 0 ) {
64  goto exit_level_0;
65  }
66  lwork = LAPACK_Z2INT( work_query );
67  /* Allocate memory for work arrays */
68  work = (lapack_complex_double*)
69  LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
70  if( work == NULL ) {
72  goto exit_level_0;
73  }
74  /* Call middle-level interface */
75  info = LAPACKE_zggqrf_work( matrix_layout, n, m, p, a, lda, taua, b, ldb,
76  taub, work, lwork );
77  /* Release memory and exit */
78  LAPACKE_free( work );
79 exit_level_0:
80  if( info == LAPACK_WORK_MEMORY_ERROR ) {
81  LAPACKE_xerbla( "LAPACKE_zggqrf", info );
82  }
83  return info;
84 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
lapack_int LAPACKE_zggqrf_work(int matrix_layout, lapack_int n, lapack_int m, lapack_int p, lapack_complex_double *a, lapack_int lda, lapack_complex_double *taua, lapack_complex_double *b, lapack_int ldb, lapack_complex_double *taub, lapack_complex_double *work, lapack_int lwork)
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACK_Z2INT(x)
Definition: lapacke.h:50
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
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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