LAPACK  3.10.1
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 35 of file lapacke_chbgv.c.

40 {
41  lapack_int info = 0;
42  float* rwork = NULL;
43  lapack_complex_float* work = NULL;
44  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45  LAPACKE_xerbla( "LAPACKE_chbgv", -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_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  }
58 #endif
59  /* Allocate memory for working array(s) */
60  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
61  if( rwork == NULL ) {
63  goto exit_level_0;
64  }
65  work = (lapack_complex_float*)
66  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,n) );
67  if( work == NULL ) {
69  goto exit_level_1;
70  }
71  /* Call middle-level interface */
72  info = LAPACKE_chbgv_work( matrix_layout, jobz, uplo, n, ka, kb, ab, ldab,
73  bb, ldbb, w, z, ldz, 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_chbgv", info );
81  }
82  return info;
83 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_float
Definition: lapack.h:45
#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
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
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)
void LAPACKE_xerbla(const char *name, lapack_int info)
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:46
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