LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dptsv_work()

lapack_int LAPACKE_dptsv_work ( int  matrix_layout,
lapack_int  n,
lapack_int  nrhs,
double *  d,
double *  e,
double *  b,
lapack_int  ldb 
)

Definition at line 35 of file lapacke_dptsv_work.c.

37 {
38  lapack_int info = 0;
39  if( matrix_layout == LAPACK_COL_MAJOR ) {
40  /* Call LAPACK function and adjust info */
41  LAPACK_dptsv( &n, &nrhs, d, e, b, &ldb, &info );
42  if( info < 0 ) {
43  info = info - 1;
44  }
45  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
46  lapack_int ldb_t = MAX(1,n);
47  double* b_t = NULL;
48  /* Check leading dimension(s) */
49  if( ldb < nrhs ) {
50  info = -7;
51  LAPACKE_xerbla( "LAPACKE_dptsv_work", info );
52  return info;
53  }
54  /* Allocate memory for temporary array(s) */
55  b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
56  if( b_t == NULL ) {
58  goto exit_level_0;
59  }
60  /* Transpose input matrices */
61  LAPACKE_dge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
62  /* Call LAPACK function and adjust info */
63  LAPACK_dptsv( &n, &nrhs, d, e, b_t, &ldb_t, &info );
64  if( info < 0 ) {
65  info = info - 1;
66  }
67  /* Transpose output matrices */
68  LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
69  /* Release memory and exit */
70  LAPACKE_free( b_t );
71 exit_level_0:
72  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
73  LAPACKE_xerbla( "LAPACKE_dptsv_work", info );
74  }
75  } else {
76  info = -1;
77  LAPACKE_xerbla( "LAPACKE_dptsv_work", info );
78  }
79  return info;
80 }
void LAPACK_dptsv(lapack_int const *n, lapack_int const *nrhs, double *D, double *E, double *B, lapack_int const *ldb, 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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