LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zptsv_work()

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

Definition at line 36 of file lapacke_zptsv_work.c.

39 {
40  lapack_int info = 0;
41  if( matrix_layout == LAPACK_COL_MAJOR ) {
42  /* Call LAPACK function and adjust info */
43  LAPACK_zptsv( &n, &nrhs, d, e, b, &ldb, &info );
44  if( info < 0 ) {
45  info = info - 1;
46  }
47  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
48  lapack_int ldb_t = MAX(1,n);
49  lapack_complex_double* b_t = NULL;
50  /* Check leading dimension(s) */
51  if( ldb < nrhs ) {
52  info = -7;
53  LAPACKE_xerbla( "LAPACKE_zptsv_work", info );
54  return info;
55  }
56  /* Allocate memory for temporary array(s) */
57  b_t = (lapack_complex_double*)
59  ldb_t * MAX(1,nrhs) );
60  if( b_t == NULL ) {
62  goto exit_level_0;
63  }
64  /* Transpose input matrices */
65  LAPACKE_zge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
66  /* Call LAPACK function and adjust info */
67  LAPACK_zptsv( &n, &nrhs, d, e, b_t, &ldb_t, &info );
68  if( info < 0 ) {
69  info = info - 1;
70  }
71  /* Transpose output matrices */
72  LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
73  /* Release memory and exit */
74  LAPACKE_free( b_t );
75 exit_level_0:
76  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
77  LAPACKE_xerbla( "LAPACKE_zptsv_work", info );
78  }
79  } else {
80  info = -1;
81  LAPACKE_xerbla( "LAPACKE_zptsv_work", info );
82  }
83  return info;
84 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_double
Definition: lapacke.h:90
#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
void LAPACK_zptsv(lapack_int *n, lapack_int *nrhs, double *d, lapack_complex_double *e, lapack_complex_double *b, lapack_int *ldb, lapack_int *info)
void LAPACKE_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
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