LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dppcon()

lapack_int LAPACKE_dppcon ( int  matrix_layout,
char  uplo,
lapack_int  n,
const double *  ap,
double  anorm,
double *  rcond 
)

Definition at line 35 of file lapacke_dppcon.c.

37 {
38  lapack_int info = 0;
39  lapack_int* iwork = NULL;
40  double* work = NULL;
41  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
42  LAPACKE_xerbla( "LAPACKE_dppcon", -1 );
43  return -1;
44  }
45 #ifndef LAPACK_DISABLE_NAN_CHECK
46  if( LAPACKE_get_nancheck() ) {
47  /* Optionally check input matrices for NaNs */
48  if( LAPACKE_d_nancheck( 1, &anorm, 1 ) ) {
49  return -5;
50  }
51  if( LAPACKE_dpp_nancheck( n, ap ) ) {
52  return -4;
53  }
54  }
55 #endif
56  /* Allocate memory for working array(s) */
57  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
58  if( iwork == NULL ) {
60  goto exit_level_0;
61  }
62  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
63  if( work == NULL ) {
65  goto exit_level_1;
66  }
67  /* Call middle-level interface */
68  info = LAPACKE_dppcon_work( matrix_layout, uplo, n, ap, anorm, rcond, work,
69  iwork );
70  /* Release memory and exit */
71  LAPACKE_free( work );
72 exit_level_1:
73  LAPACKE_free( iwork );
74 exit_level_0:
75  if( info == LAPACK_WORK_MEMORY_ERROR ) {
76  LAPACKE_xerbla( "LAPACKE_dppcon", info );
77  }
78  return info;
79 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
lapack_int LAPACKE_dppcon_work(int matrix_layout, char uplo, lapack_int n, const double *ap, double anorm, double *rcond, double *work, lapack_int *iwork)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_logical LAPACKE_dpp_nancheck(lapack_int n, const double *ap)
#define MAX(x, y)
Definition: lapacke_utils.h:46
Here is the call graph for this function: