LAPACK  3.7.1
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 36 of file lapacke_dppcon.c.

38 {
39  lapack_int info = 0;
40  lapack_int* iwork = NULL;
41  double* work = NULL;
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_dppcon", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
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 #endif
55  /* Allocate memory for working array(s) */
56  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
57  if( iwork == NULL ) {
59  goto exit_level_0;
60  }
61  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n) );
62  if( work == NULL ) {
64  goto exit_level_1;
65  }
66  /* Call middle-level interface */
67  info = LAPACKE_dppcon_work( matrix_layout, uplo, n, ap, anorm, rcond, work,
68  iwork );
69  /* Release memory and exit */
70  LAPACKE_free( work );
71 exit_level_1:
72  LAPACKE_free( iwork );
73 exit_level_0:
74  if( info == LAPACK_WORK_MEMORY_ERROR ) {
75  LAPACKE_xerbla( "LAPACKE_dppcon", info );
76  }
77  return info;
78 }
lapack_logical LAPACKE_dpp_nancheck(lapack_int n, const double *ap)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
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)
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