LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dtpttf_work()

lapack_int LAPACKE_dtpttf_work ( int  matrix_layout,
char  transr,
char  uplo,
lapack_int  n,
const double *  ap,
double *  arf 
)

Definition at line 35 of file lapacke_dtpttf_work.c.

37 {
38  lapack_int info = 0;
39  if( matrix_layout == LAPACK_COL_MAJOR ) {
40  /* Call LAPACK function and adjust info */
41  LAPACK_dtpttf( &transr, &uplo, &n, ap, arf, &info );
42  if( info < 0 ) {
43  info = info - 1;
44  }
45  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
46  double* ap_t = NULL;
47  double* arf_t = NULL;
48  /* Allocate memory for temporary array(s) */
49  ap_t = (double*)
50  LAPACKE_malloc( sizeof(double) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
51  if( ap_t == NULL ) {
53  goto exit_level_0;
54  }
55  arf_t = (double*)
56  LAPACKE_malloc( sizeof(double) * ( MAX(1,n) * MAX(2,n+1) ) / 2 );
57  if( arf_t == NULL ) {
59  goto exit_level_1;
60  }
61  /* Transpose input matrices */
62  LAPACKE_dpp_trans( matrix_layout, uplo, n, ap, ap_t );
63  /* Call LAPACK function and adjust info */
64  LAPACK_dtpttf( &transr, &uplo, &n, ap_t, arf_t, &info );
65  if( info < 0 ) {
66  info = info - 1;
67  }
68  /* Transpose output matrices */
69  LAPACKE_dpf_trans( LAPACK_COL_MAJOR, transr, uplo, n, arf_t, arf );
70  /* Release memory and exit */
71  LAPACKE_free( arf_t );
72 exit_level_1:
73  LAPACKE_free( ap_t );
74 exit_level_0:
75  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
76  LAPACKE_xerbla( "LAPACKE_dtpttf_work", info );
77  }
78  } else {
79  info = -1;
80  LAPACKE_xerbla( "LAPACKE_dtpttf_work", info );
81  }
82  return info;
83 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_dtpttf(...)
Definition: lapack.h:21224
#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)
void LAPACKE_dpf_trans(int matrix_layout, char transr, char uplo, lapack_int n, const double *in, double *out)
void LAPACKE_dpp_trans(int matrix_layout, char uplo, lapack_int n, const double *in, double *out)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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