LAPACK  3.10.1 LAPACK: Linear Algebra PACKage

## ◆ 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 );
71 exit_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 }
void LAPACK_dgeequ(lapack_int const *m, lapack_int const *n, double const *A, lapack_int const *lda, double *R, double *C, double *rowcnd, double *colcnd, double *amax, lapack_int *info)
#define lapack_int
Definition: lapack.h:83
#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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