LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zhpev()

lapack_int LAPACKE_zhpev ( int  matrix_layout,
char  jobz,
char  uplo,
lapack_int  n,
lapack_complex_double ap,
double *  w,
lapack_complex_double z,
lapack_int  ldz 
)

Definition at line 35 of file lapacke_zhpev.c.

38 {
39  lapack_int info = 0;
40  double* rwork = NULL;
41  lapack_complex_double* work = NULL;
42  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
43  LAPACKE_xerbla( "LAPACKE_zhpev", -1 );
44  return -1;
45  }
46 #ifndef LAPACK_DISABLE_NAN_CHECK
47  if( LAPACKE_get_nancheck() ) {
48  /* Optionally check input matrices for NaNs */
49  if( LAPACKE_zhp_nancheck( n, ap ) ) {
50  return -5;
51  }
52  }
53 #endif
54  /* Allocate memory for working array(s) */
55  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,3*n-2) );
56  if( rwork == NULL ) {
58  goto exit_level_0;
59  }
60  work = (lapack_complex_double*)
61  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n-1) );
62  if( work == NULL ) {
64  goto exit_level_1;
65  }
66  /* Call middle-level interface */
67  info = LAPACKE_zhpev_work( matrix_layout, jobz, uplo, n, ap, w, z, ldz, work,
68  rwork );
69  /* Release memory and exit */
70  LAPACKE_free( work );
71 exit_level_1:
72  LAPACKE_free( rwork );
73 exit_level_0:
74  if( info == LAPACK_WORK_MEMORY_ERROR ) {
75  LAPACKE_xerbla( "LAPACKE_zhpev", info );
76  }
77  return info;
78 }
#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 LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
lapack_int LAPACKE_zhpev_work(int matrix_layout, char jobz, char uplo, lapack_int n, lapack_complex_double *ap, double *w, lapack_complex_double *z, lapack_int ldz, lapack_complex_double *work, double *rwork)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
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_zhp_nancheck(lapack_int n, const lapack_complex_double *ap)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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