LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cgtcon()

lapack_int LAPACKE_cgtcon ( char  norm,
lapack_int  n,
const lapack_complex_float dl,
const lapack_complex_float d,
const lapack_complex_float du,
const lapack_complex_float du2,
const lapack_int ipiv,
float  anorm,
float *  rcond 
)

Definition at line 36 of file lapacke_cgtcon.c.

42 {
43  lapack_int info = 0;
44  lapack_complex_float* work = NULL;
45 #ifndef LAPACK_DISABLE_NAN_CHECK
46  if( LAPACKE_get_nancheck() ) {
47  /* Optionally check input matrices for NaNs */
48  if( LAPACKE_s_nancheck( 1, &anorm, 1 ) ) {
49  return -8;
50  }
51  if( LAPACKE_c_nancheck( n, d, 1 ) ) {
52  return -4;
53  }
54  if( LAPACKE_c_nancheck( n-1, dl, 1 ) ) {
55  return -3;
56  }
57  if( LAPACKE_c_nancheck( n-1, du, 1 ) ) {
58  return -5;
59  }
60  if( LAPACKE_c_nancheck( n-2, du2, 1 ) ) {
61  return -6;
62  }
63  }
64 #endif
65  /* Allocate memory for working array(s) */
66  work = (lapack_complex_float*)
67  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n) );
68  if( work == NULL ) {
70  goto exit_level_0;
71  }
72  /* Call middle-level interface */
73  info = LAPACKE_cgtcon_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_cgtcon", info );
80  }
81  return info;
82 }
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:47
lapack_logical LAPACKE_c_nancheck(lapack_int n, const lapack_complex_float *x, lapack_int incx)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_int LAPACKE_cgtcon_work(char norm, lapack_int n, const lapack_complex_float *dl, const lapack_complex_float *d, const lapack_complex_float *du, const lapack_complex_float *du2, const lapack_int *ipiv, float anorm, float *rcond, lapack_complex_float *work)
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
int LAPACKE_get_nancheck()
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