LAPACK  3.10.1
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 35 of file lapacke_zgtcon.c.

41 {
42  lapack_int info = 0;
43  lapack_complex_double* work = NULL;
44 #ifndef LAPACK_DISABLE_NAN_CHECK
45  if( LAPACKE_get_nancheck() ) {
46  /* Optionally check input matrices for NaNs */
47  if( LAPACKE_d_nancheck( 1, &anorm, 1 ) ) {
48  return -8;
49  }
50  if( LAPACKE_z_nancheck( n, d, 1 ) ) {
51  return -4;
52  }
53  if( LAPACKE_z_nancheck( n-1, dl, 1 ) ) {
54  return -3;
55  }
56  if( LAPACKE_z_nancheck( n-1, du, 1 ) ) {
57  return -5;
58  }
59  if( LAPACKE_z_nancheck( n-2, du2, 1 ) ) {
60  return -6;
61  }
62  }
63 #endif
64  /* Allocate memory for working array(s) */
65  work = (lapack_complex_double*)
66  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
67  if( work == NULL ) {
69  goto exit_level_0;
70  }
71  /* Call middle-level interface */
72  info = LAPACKE_zgtcon_work( norm, n, dl, d, du, du2, ipiv, anorm, rcond,
73  work );
74  /* Release memory and exit */
75  LAPACKE_free( work );
76 exit_level_0:
77  if( info == LAPACK_WORK_MEMORY_ERROR ) {
78  LAPACKE_xerbla( "LAPACKE_zgtcon", info );
79  }
80  return info;
81 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACKE_free(p)
Definition: lapacke.h:46
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)
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)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_z_nancheck(lapack_int n, const lapack_complex_double *x, lapack_int incx)
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