LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ 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 35 of file lapacke_zgbequ_work.c.

40{
41 lapack_int info = 0;
42 if( matrix_layout == LAPACK_COL_MAJOR ) {
43 /* Call LAPACK function and adjust info */
44 LAPACK_zgbequ( &m, &n, &kl, &ku, ab, &ldab, r, c, rowcnd, colcnd, amax,
45 &info );
46 if( info < 0 ) {
47 info = info - 1;
48 }
49 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
50 lapack_int ldab_t = MAX(1,kl+ku+1);
51 lapack_complex_double* ab_t = NULL;
52 /* Check leading dimension(s) */
53 if( ldab < n ) {
54 info = -7;
55 LAPACKE_xerbla( "LAPACKE_zgbequ_work", info );
56 return info;
57 }
58 /* Allocate memory for temporary array(s) */
59 ab_t = (lapack_complex_double*)
60 LAPACKE_malloc( sizeof(lapack_complex_double) * ldab_t * MAX(1,n) );
61 if( ab_t == NULL ) {
63 goto exit_level_0;
64 }
65 /* Transpose input matrices */
66 LAPACKE_zgb_trans( matrix_layout, m, n, kl, ku, ab, ldab, ab_t, ldab_t );
67 /* Call LAPACK function and adjust info */
68 LAPACK_zgbequ( &m, &n, &kl, &ku, ab_t, &ldab_t, r, c, rowcnd, colcnd,
69 amax, &info );
70 if( info < 0 ) {
71 info = info - 1;
72 }
73 /* Release memory and exit */
74 LAPACKE_free( ab_t );
75exit_level_0:
76 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
77 LAPACKE_xerbla( "LAPACKE_zgbequ_work", info );
78 }
79 } else {
80 info = -1;
81 LAPACKE_xerbla( "LAPACKE_zgbequ_work", info );
82 }
83 return info;
84}
#define LAPACK_zgbequ
Definition: lapack.h:681
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_double
Definition: lapack.h:64
#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)
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:46
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