LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zhbev()

lapack_int LAPACKE_zhbev ( int  matrix_layout,
char  jobz,
char  uplo,
lapack_int  n,
lapack_int  kd,
lapack_complex_double ab,
lapack_int  ldab,
double *  w,
lapack_complex_double z,
lapack_int  ldz 
)

Definition at line 36 of file lapacke_zhbev.c.

40 {
41  lapack_int info = 0;
42  double* rwork = NULL;
43  lapack_complex_double* work = NULL;
44  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_zhbev", -1 );
46  return -1;
47  }
48 #ifndef LAPACK_DISABLE_NAN_CHECK
49  if( LAPACKE_get_nancheck() ) {
50  /* Optionally check input matrices for NaNs */
51  if( LAPACKE_zhb_nancheck( matrix_layout, uplo, n, kd, ab, ldab ) ) {
52  return -6;
53  }
54  }
55 #endif
56  /* Allocate memory for working array(s) */
57  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n-2) );
58  if( rwork == NULL ) {
60  goto exit_level_0;
61  }
62  work = (lapack_complex_double*)
63  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,n) );
64  if( work == NULL ) {
66  goto exit_level_1;
67  }
68  /* Call middle-level interface */
69  info = LAPACKE_zhbev_work( matrix_layout, jobz, uplo, n, kd, ab, ldab, w, z,
70  ldz, work, rwork );
71  /* Release memory and exit */
72  LAPACKE_free( work );
73 exit_level_1:
74  LAPACKE_free( rwork );
75 exit_level_0:
76  if( info == LAPACK_WORK_MEMORY_ERROR ) {
77  LAPACKE_xerbla( "LAPACKE_zhbev", info );
78  }
79  return info;
80 }
#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
lapack_logical LAPACKE_zhb_nancheck(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const lapack_complex_double *ab, lapack_int ldab)
lapack_int LAPACKE_zhbev_work(int matrix_layout, char jobz, char uplo, lapack_int n, lapack_int kd, lapack_complex_double *ab, lapack_int ldab, double *w, lapack_complex_double *z, lapack_int ldz, lapack_complex_double *work, double *rwork)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
int LAPACKE_get_nancheck()
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