LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgbbrd()

lapack_int LAPACKE_zgbbrd ( int  matrix_layout,
char  vect,
lapack_int  m,
lapack_int  n,
lapack_int  ncc,
lapack_int  kl,
lapack_int  ku,
lapack_complex_double ab,
lapack_int  ldab,
double *  d,
double *  e,
lapack_complex_double q,
lapack_int  ldq,
lapack_complex_double pt,
lapack_int  ldpt,
lapack_complex_double c,
lapack_int  ldc 
)

Definition at line 36 of file lapacke_zgbbrd.c.

43 {
44  lapack_int info = 0;
45  double* rwork = NULL;
46  lapack_complex_double* work = NULL;
47  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48  LAPACKE_xerbla( "LAPACKE_zgbbrd", -1 );
49  return -1;
50  }
51 #ifndef LAPACK_DISABLE_NAN_CHECK
52  if( LAPACKE_get_nancheck() ) {
53  /* Optionally check input matrices for NaNs */
54  if( LAPACKE_zgb_nancheck( matrix_layout, m, n, kl, ku, ab, ldab ) ) {
55  return -8;
56  }
57  if( ncc != 0 ) {
58  if( LAPACKE_zge_nancheck( matrix_layout, m, ncc, c, ldc ) ) {
59  return -16;
60  }
61  }
62  }
63 #endif
64  /* Allocate memory for working array(s) */
65  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,MAX(m,n)) );
66  if( rwork == NULL ) {
68  goto exit_level_0;
69  }
70  work = (lapack_complex_double*)
71  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,MAX(m,n)) );
72  if( work == NULL ) {
74  goto exit_level_1;
75  }
76  /* Call middle-level interface */
77  info = LAPACKE_zgbbrd_work( matrix_layout, vect, m, n, ncc, kl, ku, ab, ldab,
78  d, e, q, ldq, pt, ldpt, c, ldc, work, rwork );
79  /* Release memory and exit */
80  LAPACKE_free( work );
81 exit_level_1:
82  LAPACKE_free( rwork );
83 exit_level_0:
84  if( info == LAPACK_WORK_MEMORY_ERROR ) {
85  LAPACKE_xerbla( "LAPACKE_zgbbrd", info );
86  }
87  return info;
88 }
#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
#define MAX(x, y)
Definition: lapacke_utils.h:47
#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)
lapack_logical LAPACKE_zgb_nancheck(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const lapack_complex_double *ab, lapack_int ldab)
lapack_int LAPACKE_zgbbrd_work(int matrix_layout, char vect, lapack_int m, lapack_int n, lapack_int ncc, lapack_int kl, lapack_int ku, lapack_complex_double *ab, lapack_int ldab, double *d, double *e, lapack_complex_double *q, lapack_int ldq, lapack_complex_double *pt, lapack_int ldpt, lapack_complex_double *c, lapack_int ldc, lapack_complex_double *work, double *rwork)
int LAPACKE_get_nancheck()
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