LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dlagsy_work()

lapack_int LAPACKE_dlagsy_work ( int  matrix_layout,
lapack_int  n,
lapack_int  k,
const double *  d,
double *  a,
lapack_int  lda,
lapack_int iseed,
double *  work 
)

Definition at line 36 of file lapacke_dlagsy_work.c.

39 {
40  lapack_int info = 0;
41  if( matrix_layout == LAPACK_COL_MAJOR ) {
42  /* Call LAPACK function and adjust info */
43  LAPACK_dlagsy( &n, &k, d, a, &lda, iseed, work, &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,n);
49  double* a_t = NULL;
50  /* Check leading dimension(s) */
51  if( lda < n ) {
52  info = -6;
53  LAPACKE_xerbla( "LAPACKE_dlagsy_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  /* Call LAPACK function and adjust info */
63  LAPACK_dlagsy( &n, &k, d, a_t, &lda_t, iseed, work, &info );
64  if( info < 0 ) {
65  info = info - 1;
66  }
67  /* Transpose output matrices */
68  LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
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_dlagsy_work", info );
74  }
75  } else {
76  info = -1;
77  LAPACKE_xerbla( "LAPACKE_dlagsy_work", info );
78  }
79  return info;
80 }
void LAPACKE_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
void LAPACK_dlagsy(lapack_int *n, lapack_int *k, const double *d, double *a, lapack_int *lda, lapack_int *iseed, double *work, lapack_int *info)
#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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