LAPACK  3.10.0
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 35 of file lapacke_zhbgst.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_zhbgst", -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, ka, ab, ldab ) ) {
52  return -7;
53  }
54  if( LAPACKE_zhb_nancheck( matrix_layout, uplo, n, kb, bb, ldbb ) ) {
55  return -9;
56  }
57  }
58 #endif
59  /* Allocate memory for working array(s) */
60  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
61  if( rwork == NULL ) {
63  goto exit_level_0;
64  }
65  work = (lapack_complex_double*)
66  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,n) );
67  if( work == NULL ) {
69  goto exit_level_1;
70  }
71  /* Call middle-level interface */
72  info = LAPACKE_zhbgst_work( matrix_layout, vect, uplo, n, ka, kb, ab, ldab,
73  bb, ldbb, x, ldx, work, rwork );
74  /* Release memory and exit */
75  LAPACKE_free( work );
76 exit_level_1:
77  LAPACKE_free( rwork );
78 exit_level_0:
79  if( info == LAPACK_WORK_MEMORY_ERROR ) {
80  LAPACKE_xerbla( "LAPACKE_zhbgst", info );
81  }
82  return info;
83 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
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_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#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_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:46
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