LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgbcon_work()

lapack_int LAPACKE_zgbcon_work ( int  matrix_layout,
char  norm,
lapack_int  n,
lapack_int  kl,
lapack_int  ku,
const lapack_complex_double ab,
lapack_int  ldab,
const lapack_int ipiv,
double  anorm,
double *  rcond,
lapack_complex_double work,
double *  rwork 
)

Definition at line 36 of file lapacke_zgbcon_work.c.

42 {
43  lapack_int info = 0;
44  if( matrix_layout == LAPACK_COL_MAJOR ) {
45  /* Call LAPACK function and adjust info */
46  LAPACK_zgbcon( &norm, &n, &kl, &ku, ab, &ldab, ipiv, &anorm, rcond,
47  work, rwork, &info );
48  if( info < 0 ) {
49  info = info - 1;
50  }
51  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
52  lapack_int ldab_t = MAX(1,2*kl+ku+1);
53  lapack_complex_double* ab_t = NULL;
54  /* Check leading dimension(s) */
55  if( ldab < n ) {
56  info = -7;
57  LAPACKE_xerbla( "LAPACKE_zgbcon_work", info );
58  return info;
59  }
60  /* Allocate memory for temporary array(s) */
61  ab_t = (lapack_complex_double*)
62  LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
63  if( ab_t == NULL ) {
65  goto exit_level_0;
66  }
67  /* Transpose input matrices */
68  LAPACKE_zgb_trans( matrix_layout, n, n, kl, kl+ku, ab, ldab, ab_t,
69  ldab_t );
70  /* Call LAPACK function and adjust info */
71  LAPACK_zgbcon( &norm, &n, &kl, &ku, ab_t, &ldab_t, ipiv, &anorm, rcond,
72  work, rwork, &info );
73  if( info < 0 ) {
74  info = info - 1;
75  }
76  /* Release memory and exit */
77  LAPACKE_free( ab_t );
78 exit_level_0:
79  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
80  LAPACKE_xerbla( "LAPACKE_zgbcon_work", info );
81  }
82  } else {
83  info = -1;
84  LAPACKE_xerbla( "LAPACKE_zgbcon_work", info );
85  }
86  return info;
87 }
void LAPACK_zgbcon(char *norm, lapack_int *n, lapack_int *kl, lapack_int *ku, const lapack_complex_double *ab, lapack_int *ldab, const lapack_int *ipiv, double *anorm, double *rcond, lapack_complex_double *work, double *rwork, lapack_int *info)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_double
Definition: lapacke.h:90
void LAPACKE_zgb_trans(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
#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
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
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