LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgtcon()

lapack_int LAPACKE_zgtcon ( char  norm,
lapack_int  n,
const lapack_complex_double dl,
const lapack_complex_double d,
const lapack_complex_double du,
const lapack_complex_double du2,
const lapack_int ipiv,
double  anorm,
double *  rcond 
)

Definition at line 36 of file lapacke_zgtcon.c.

42 {
43  lapack_int info = 0;
44  lapack_complex_double* work = NULL;
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 -8;
50  }
51  if( LAPACKE_z_nancheck( n, d, 1 ) ) {
52  return -4;
53  }
54  if( LAPACKE_z_nancheck( n-1, dl, 1 ) ) {
55  return -3;
56  }
57  if( LAPACKE_z_nancheck( n-1, du, 1 ) ) {
58  return -5;
59  }
60  if( LAPACKE_z_nancheck( n-2, du2, 1 ) ) {
61  return -6;
62  }
63  }
64 #endif
65  /* Allocate memory for working array(s) */
66  work = (lapack_complex_double*)
67  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
68  if( work == NULL ) {
70  goto exit_level_0;
71  }
72  /* Call middle-level interface */
73  info = LAPACKE_zgtcon_work( norm, n, dl, d, du, du2, ipiv, anorm, rcond,
74  work );
75  /* Release memory and exit */
76  LAPACKE_free( work );
77 exit_level_0:
78  if( info == LAPACK_WORK_MEMORY_ERROR ) {
79  LAPACKE_xerbla( "LAPACKE_zgtcon", info );
80  }
81  return info;
82 }
lapack_int LAPACKE_zgtcon_work(char norm, lapack_int n, const lapack_complex_double *dl, const lapack_complex_double *d, const lapack_complex_double *du, const lapack_complex_double *du2, const lapack_int *ipiv, double anorm, double *rcond, lapack_complex_double *work)
lapack_logical LAPACKE_z_nancheck(lapack_int n, const lapack_complex_double *x, lapack_int incx)
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#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
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
int LAPACKE_get_nancheck()
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