LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ctbcon_work()

lapack_int LAPACKE_ctbcon_work ( int  matrix_layout,
char  norm,
char  uplo,
char  diag,
lapack_int  n,
lapack_int  kd,
const lapack_complex_float ab,
lapack_int  ldab,
float *  rcond,
lapack_complex_float work,
float *  rwork 
)

Definition at line 36 of file lapacke_ctbcon_work.c.

41 {
42  lapack_int info = 0;
43  if( matrix_layout == LAPACK_COL_MAJOR ) {
44  /* Call LAPACK function and adjust info */
45  LAPACK_ctbcon( &norm, &uplo, &diag, &n, &kd, ab, &ldab, rcond, work,
46  rwork, &info );
47  if( info < 0 ) {
48  info = info - 1;
49  }
50  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
51  lapack_int ldab_t = MAX(1,kd+1);
52  lapack_complex_float* ab_t = NULL;
53  /* Check leading dimension(s) */
54  if( ldab < n ) {
55  info = -8;
56  LAPACKE_xerbla( "LAPACKE_ctbcon_work", info );
57  return info;
58  }
59  /* Allocate memory for temporary array(s) */
60  ab_t = (lapack_complex_float*)
61  LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) );
62  if( ab_t == NULL ) {
64  goto exit_level_0;
65  }
66  /* Transpose input matrices */
67  LAPACKE_ctb_trans( matrix_layout, uplo, diag, n, kd, ab, ldab, ab_t,
68  ldab_t );
69  /* Call LAPACK function and adjust info */
70  LAPACK_ctbcon( &norm, &uplo, &diag, &n, &kd, ab_t, &ldab_t, rcond, work,
71  rwork, &info );
72  if( info < 0 ) {
73  info = info - 1;
74  }
75  /* Release memory and exit */
76  LAPACKE_free( ab_t );
77 exit_level_0:
78  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
79  LAPACKE_xerbla( "LAPACKE_ctbcon_work", info );
80  }
81  } else {
82  info = -1;
83  LAPACKE_xerbla( "LAPACKE_ctbcon_work", info );
84  }
85  return info;
86 }
void LAPACK_ctbcon(char *norm, char *uplo, char *diag, lapack_int *n, lapack_int *kd, const lapack_complex_float *ab, lapack_int *ldab, float *rcond, lapack_complex_float *work, float *rwork, lapack_int *info)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
void LAPACKE_ctb_trans(int matrix_layout, char uplo, char diag, lapack_int n, lapack_int kd, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
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