LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dgbbrd()

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

Definition at line 36 of file lapacke_dgbbrd.c.

42 {
43  lapack_int info = 0;
44  double* work = NULL;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_dgbbrd", -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_dgb_nancheck( matrix_layout, m, n, kl, ku, ab, ldab ) ) {
53  return -8;
54  }
55  if( ncc != 0 ) {
56  if( LAPACKE_dge_nancheck( matrix_layout, m, ncc, c, ldc ) ) {
57  return -16;
58  }
59  }
60  }
61 #endif
62  /* Allocate memory for working array(s) */
63  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,2*MAX(m,n)) );
64  if( work == NULL ) {
66  goto exit_level_0;
67  }
68  /* Call middle-level interface */
69  info = LAPACKE_dgbbrd_work( matrix_layout, vect, m, n, ncc, kl, ku, ab, ldab,
70  d, e, q, ldq, pt, ldpt, c, ldc, work );
71  /* Release memory and exit */
72  LAPACKE_free( work );
73 exit_level_0:
74  if( info == LAPACK_WORK_MEMORY_ERROR ) {
75  LAPACKE_xerbla( "LAPACKE_dgbbrd", info );
76  }
77  return info;
78 }
#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 MAX(x, y)
Definition: lapacke_utils.h:47
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_dgb_nancheck(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const double *ab, lapack_int ldab)
lapack_int LAPACKE_dgbbrd_work(int matrix_layout, char vect, lapack_int m, lapack_int n, lapack_int ncc, lapack_int kl, lapack_int ku, double *ab, lapack_int ldab, double *d, double *e, double *q, lapack_int ldq, double *pt, lapack_int ldpt, double *c, lapack_int ldc, double *work)
#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()
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