LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zhbtrd()

lapack_int LAPACKE_zhbtrd ( int  matrix_layout,
char  vect,
char  uplo,
lapack_int  n,
lapack_int  kd,
lapack_complex_double ab,
lapack_int  ldab,
double *  d,
double *  e,
lapack_complex_double q,
lapack_int  ldq 
)

Definition at line 36 of file lapacke_zhbtrd.c.

40 {
41  lapack_int info = 0;
42  lapack_complex_double* work = NULL;
43  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
44  LAPACKE_xerbla( "LAPACKE_zhbtrd", -1 );
45  return -1;
46  }
47 #ifndef LAPACK_DISABLE_NAN_CHECK
48  if( LAPACKE_get_nancheck() ) {
49  /* Optionally check input matrices for NaNs */
50  if( LAPACKE_zhb_nancheck( matrix_layout, uplo, n, kd, ab, ldab ) ) {
51  return -6;
52  }
53  if( LAPACKE_lsame( vect, 'u' ) ) {
54  if( LAPACKE_zge_nancheck( matrix_layout, n, n, q, ldq ) ) {
55  return -10;
56  }
57  }
58  }
59 #endif
60  /* Allocate memory for working array(s) */
61  work = (lapack_complex_double*)
62  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,n) );
63  if( work == NULL ) {
65  goto exit_level_0;
66  }
67  /* Call middle-level interface */
68  info = LAPACKE_zhbtrd_work( matrix_layout, vect, uplo, n, kd, ab, ldab, d, e,
69  q, ldq, 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_zhbtrd", info );
75  }
76  return info;
77 }
#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)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
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
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
lapack_int LAPACKE_zhbtrd_work(int matrix_layout, char vect, char uplo, lapack_int n, lapack_int kd, lapack_complex_double *ab, lapack_int ldab, double *d, double *e, lapack_complex_double *q, lapack_int ldq, lapack_complex_double *work)
int LAPACKE_get_nancheck()
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