LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zhecon_3()

lapack_int LAPACKE_zhecon_3 ( int  matrix_layout,
char  uplo,
lapack_int  n,
const lapack_complex_double a,
lapack_int  lda,
const lapack_complex_double e,
const lapack_int ipiv,
double  anorm,
double *  rcond 
)

Definition at line 36 of file lapacke_zhecon_3.c.

40 {
41  lapack_int info = 0;
42  lapack_complex_double* work = NULL;
43  lapack_int e_start = LAPACKE_lsame( uplo, 'U' ) ? 1 : 0;
44  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_zhecon_3", -1 );
46  return -1;
47  }
48 #ifndef LAPACK_DISABLE_NAN_CHECK
49  /* Optionally check input matrices for NaNs */
50  if( LAPACKE_zhe_nancheck( matrix_layout, uplo, n, a, lda ) ) {
51  return -4;
52  }
53  if( LAPACKE_z_nancheck( n-1, e + e_start, 1 ) ) {
54  return -6;
55  }
56  if( LAPACKE_d_nancheck( 1, &anorm, 1 ) ) {
57  return -8;
58  }
59 #endif
60  /* Allocate memory for working array(s) */
61  work = (lapack_complex_double*)
62  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
63  if( work == NULL ) {
65  goto exit_level_0;
66  }
67  /* Call middle-level interface */
68  info = LAPACKE_zhecon_3_work( matrix_layout, uplo, n, a, lda, e, ipiv, anorm,
69  rcond, work );
70  /* Release memory and exit */
71  LAPACKE_free( work );
72 exit_level_0:
73  if( info == LAPACK_WORK_MEMORY_ERROR ) {
74  LAPACKE_xerbla( "LAPACKE_zhecon_3", info );
75  }
76  return info;
77 }
lapack_logical LAPACKE_z_nancheck(lapack_int n, const lapack_complex_double *x, lapack_int incx)
lapack_logical LAPACKE_zhe_nancheck(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *a, lapack_int lda)
#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 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)
lapack_int LAPACKE_zhecon_3_work(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *a, lapack_int lda, const lapack_complex_double *e, const lapack_int *ipiv, double anorm, double *rcond, lapack_complex_double *work)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
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