LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dptcon()

lapack_int LAPACKE_dptcon ( lapack_int  n,
const double *  d,
const double *  e,
double  anorm,
double *  rcond 
)

Definition at line 36 of file lapacke_dptcon.c.

38 {
39  lapack_int info = 0;
40  double* work = NULL;
41 #ifndef LAPACK_DISABLE_NAN_CHECK
42  /* Optionally check input matrices for NaNs */
43  if( LAPACKE_d_nancheck( 1, &anorm, 1 ) ) {
44  return -4;
45  }
46  if( LAPACKE_d_nancheck( n, d, 1 ) ) {
47  return -2;
48  }
49  if( LAPACKE_d_nancheck( n-1, e, 1 ) ) {
50  return -3;
51  }
52 #endif
53  /* Allocate memory for working array(s) */
54  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
55  if( work == NULL ) {
57  goto exit_level_0;
58  }
59  /* Call middle-level interface */
60  info = LAPACKE_dptcon_work( n, d, e, anorm, rcond, work );
61  /* Release memory and exit */
62  LAPACKE_free( work );
63 exit_level_0:
64  if( info == LAPACK_WORK_MEMORY_ERROR ) {
65  LAPACKE_xerbla( "LAPACKE_dptcon", info );
66  }
67  return info;
68 }
#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
lapack_int LAPACKE_dptcon_work(lapack_int n, const double *d, const double *e, double anorm, double *rcond, double *work)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
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