LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_dgeequ_work()

lapack_int LAPACKE_dgeequ_work ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
const double *  a,
lapack_int  lda,
double *  r,
double *  c,
double *  rowcnd,
double *  colcnd,
double *  amax 
)

Definition at line 35 of file lapacke_dgeequ_work.c.

39{
40 lapack_int info = 0;
41 if( matrix_layout == LAPACK_COL_MAJOR ) {
42 /* Call LAPACK function and adjust info */
43 LAPACK_dgeequ( &m, &n, a, &lda, r, c, rowcnd, colcnd, amax, &info );
44 if( info < 0 ) {
45 info = info - 1;
46 }
47 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
48 lapack_int lda_t = MAX(1,m);
49 double* a_t = NULL;
50 /* Check leading dimension(s) */
51 if( lda < n ) {
52 info = -5;
53 LAPACKE_xerbla( "LAPACKE_dgeequ_work", info );
54 return info;
55 }
56 /* Allocate memory for temporary array(s) */
57 a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
58 if( a_t == NULL ) {
60 goto exit_level_0;
61 }
62 /* Transpose input matrices */
63 LAPACKE_dge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
64 /* Call LAPACK function and adjust info */
65 LAPACK_dgeequ( &m, &n, a_t, &lda_t, r, c, rowcnd, colcnd, amax, &info );
66 if( info < 0 ) {
67 info = info - 1;
68 }
69 /* Release memory and exit */
70 LAPACKE_free( a_t );
71exit_level_0:
72 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
73 LAPACKE_xerbla( "LAPACKE_dgeequ_work", info );
74 }
75 } else {
76 info = -1;
77 LAPACKE_xerbla( "LAPACKE_dgeequ_work", info );
78 }
79 return info;
80}
#define LAPACK_dgeequ
Definition: lapack.h:1559
#define lapack_int
Definition: lapack.h:87
#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_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
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