LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zhbgst()

lapack_int LAPACKE_zhbgst ( int  matrix_layout,
char  vect,
char  uplo,
lapack_int  n,
lapack_int  ka,
lapack_int  kb,
lapack_complex_double ab,
lapack_int  ldab,
const lapack_complex_double bb,
lapack_int  ldbb,
lapack_complex_double x,
lapack_int  ldx 
)

Definition at line 36 of file lapacke_zhbgst.c.

41 {
42  lapack_int info = 0;
43  double* rwork = NULL;
44  lapack_complex_double* work = NULL;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_zhbgst", -1 );
47  return -1;
48  }
49 #ifndef LAPACK_DISABLE_NAN_CHECK
50  if( LAPACKE_get_nancheck() ) {
51  /* Optionally check input matrices for NaNs */
52  if( LAPACKE_zhb_nancheck( matrix_layout, uplo, n, ka, ab, ldab ) ) {
53  return -7;
54  }
55  if( LAPACKE_zhb_nancheck( matrix_layout, uplo, n, kb, bb, ldbb ) ) {
56  return -9;
57  }
58  }
59 #endif
60  /* Allocate memory for working array(s) */
61  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
62  if( rwork == NULL ) {
64  goto exit_level_0;
65  }
66  work = (lapack_complex_double*)
67  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,n) );
68  if( work == NULL ) {
70  goto exit_level_1;
71  }
72  /* Call middle-level interface */
73  info = LAPACKE_zhbgst_work( matrix_layout, vect, uplo, n, ka, kb, ab, ldab,
74  bb, ldbb, x, ldx, work, rwork );
75  /* Release memory and exit */
76  LAPACKE_free( work );
77 exit_level_1:
78  LAPACKE_free( rwork );
79 exit_level_0:
80  if( info == LAPACK_WORK_MEMORY_ERROR ) {
81  LAPACKE_xerbla( "LAPACKE_zhbgst", info );
82  }
83  return info;
84 }
#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
lapack_int LAPACKE_zhbgst_work(int matrix_layout, char vect, char uplo, lapack_int n, lapack_int ka, lapack_int kb, lapack_complex_double *ab, lapack_int ldab, const lapack_complex_double *bb, lapack_int ldbb, lapack_complex_double *x, lapack_int ldx, lapack_complex_double *work, double *rwork)
#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
#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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