LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dtbcon_work()

lapack_int LAPACKE_dtbcon_work ( int  matrix_layout,
char  norm,
char  uplo,
char  diag,
lapack_int  n,
lapack_int  kd,
const double *  ab,
lapack_int  ldab,
double *  rcond,
double *  work,
lapack_int iwork 
)

Definition at line 35 of file lapacke_dtbcon_work.c.

39 {
40  lapack_int info = 0;
41  if( matrix_layout == LAPACK_COL_MAJOR ) {
42  /* Call LAPACK function and adjust info */
43  LAPACK_dtbcon( &norm, &uplo, &diag, &n, &kd, ab, &ldab, rcond, work,
44  iwork, &info );
45  if( info < 0 ) {
46  info = info - 1;
47  }
48  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
49  lapack_int ldab_t = MAX(1,kd+1);
50  double* ab_t = NULL;
51  /* Check leading dimension(s) */
52  if( ldab < n ) {
53  info = -8;
54  LAPACKE_xerbla( "LAPACKE_dtbcon_work", info );
55  return info;
56  }
57  /* Allocate memory for temporary array(s) */
58  ab_t = (double*)LAPACKE_malloc( sizeof(double) * ldab_t * MAX(1,n) );
59  if( ab_t == NULL ) {
61  goto exit_level_0;
62  }
63  /* Transpose input matrices */
64  LAPACKE_dtb_trans( matrix_layout, uplo, diag, n, kd, ab, ldab, ab_t,
65  ldab_t );
66  /* Call LAPACK function and adjust info */
67  LAPACK_dtbcon( &norm, &uplo, &diag, &n, &kd, ab_t, &ldab_t, rcond, work,
68  iwork, &info );
69  if( info < 0 ) {
70  info = info - 1;
71  }
72  /* Release memory and exit */
73  LAPACKE_free( ab_t );
74 exit_level_0:
75  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
76  LAPACKE_xerbla( "LAPACKE_dtbcon_work", info );
77  }
78  } else {
79  info = -1;
80  LAPACKE_xerbla( "LAPACKE_dtbcon_work", info );
81  }
82  return info;
83 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_dtbcon(...)
Definition: lapack.h:19574
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
void LAPACKE_xerbla(const char *name, lapack_int info)
#define MAX(x, y)
Definition: lapacke_utils.h:46
void LAPACKE_dtb_trans(int matrix_layout, char uplo, char diag, lapack_int n, lapack_int kd, const double *in, lapack_int ldin, double *out, lapack_int ldout)
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