LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_chbgv()

lapack_int LAPACKE_chbgv ( int  matrix_layout,
char  jobz,
char  uplo,
lapack_int  n,
lapack_int  ka,
lapack_int  kb,
lapack_complex_float ab,
lapack_int  ldab,
lapack_complex_float bb,
lapack_int  ldbb,
float *  w,
lapack_complex_float z,
lapack_int  ldz 
)

Definition at line 36 of file lapacke_chbgv.c.

41 {
42  lapack_int info = 0;
43  float* rwork = NULL;
44  lapack_complex_float* work = NULL;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_chbgv", -1 );
47  return -1;
48  }
49 #ifndef LAPACK_DISABLE_NAN_CHECK
50  /* Optionally check input matrices for NaNs */
51  if( LAPACKE_chb_nancheck( matrix_layout, uplo, n, ka, ab, ldab ) ) {
52  return -7;
53  }
54  if( LAPACKE_chb_nancheck( matrix_layout, uplo, n, kb, bb, ldbb ) ) {
55  return -9;
56  }
57 #endif
58  /* Allocate memory for working array(s) */
59  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
60  if( rwork == NULL ) {
62  goto exit_level_0;
63  }
64  work = (lapack_complex_float*)
65  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,n) );
66  if( work == NULL ) {
68  goto exit_level_1;
69  }
70  /* Call middle-level interface */
71  info = LAPACKE_chbgv_work( matrix_layout, jobz, uplo, n, ka, kb, ab, ldab,
72  bb, ldbb, w, z, ldz, work, rwork );
73  /* Release memory and exit */
74  LAPACKE_free( work );
75 exit_level_1:
76  LAPACKE_free( rwork );
77 exit_level_0:
78  if( info == LAPACK_WORK_MEMORY_ERROR ) {
79  LAPACKE_xerbla( "LAPACKE_chbgv", info );
80  }
81  return info;
82 }
#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_float
Definition: lapacke.h:74
lapack_logical LAPACKE_chb_nancheck(int matrix_layout, char uplo, lapack_int n, lapack_int kd, const lapack_complex_float *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
lapack_int LAPACKE_chbgv_work(int matrix_layout, char jobz, char uplo, lapack_int n, lapack_int ka, lapack_int kb, lapack_complex_float *ab, lapack_int ldab, lapack_complex_float *bb, lapack_int ldbb, float *w, lapack_complex_float *z, lapack_int ldz, lapack_complex_float *work, float *rwork)
Here is the call graph for this function: