LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgbequ_work()

lapack_int LAPACKE_zgbequ_work ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
lapack_int  kl,
lapack_int  ku,
const lapack_complex_double ab,
lapack_int  ldab,
double *  r,
double *  c,
double *  rowcnd,
double *  colcnd,
double *  amax 
)

Definition at line 36 of file lapacke_zgbequ_work.c.

41 {
42  lapack_int info = 0;
43  if( matrix_layout == LAPACK_COL_MAJOR ) {
44  /* Call LAPACK function and adjust info */
45  LAPACK_zgbequ( &m, &n, &kl, &ku, ab, &ldab, r, c, rowcnd, colcnd, amax,
46  &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,kl+ku+1);
52  lapack_complex_double* ab_t = NULL;
53  /* Check leading dimension(s) */
54  if( ldab < n ) {
55  info = -7;
56  LAPACKE_xerbla( "LAPACKE_zgbequ_work", info );
57  return info;
58  }
59  /* Allocate memory for temporary array(s) */
60  ab_t = (lapack_complex_double*)
61  LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
62  if( ab_t == NULL ) {
64  goto exit_level_0;
65  }
66  /* Transpose input matrices */
67  LAPACKE_zgb_trans( matrix_layout, m, n, kl, ku, ab, ldab, ab_t, ldab_t );
68  /* Call LAPACK function and adjust info */
69  LAPACK_zgbequ( &m, &n, &kl, &ku, ab_t, &ldab_t, r, c, rowcnd, colcnd,
70  amax, &info );
71  if( info < 0 ) {
72  info = info - 1;
73  }
74  /* Release memory and exit */
75  LAPACKE_free( ab_t );
76 exit_level_0:
77  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
78  LAPACKE_xerbla( "LAPACKE_zgbequ_work", info );
79  }
80  } else {
81  info = -1;
82  LAPACKE_xerbla( "LAPACKE_zgbequ_work", info );
83  }
84  return info;
85 }
#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
void LAPACK_zgbequ(lapack_int *m, lapack_int *n, lapack_int *kl, lapack_int *ku, const lapack_complex_double *ab, lapack_int *ldab, double *r, double *c, double *rowcnd, double *colcnd, double *amax, lapack_int *info)
#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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