LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_chpgv()

lapack_int LAPACKE_chpgv ( int  matrix_layout,
lapack_int  itype,
char  jobz,
char  uplo,
lapack_int  n,
lapack_complex_float ap,
lapack_complex_float bp,
float *  w,
lapack_complex_float z,
lapack_int  ldz 
)

Definition at line 36 of file lapacke_chpgv.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_chpgv", -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_chp_nancheck( n, ap ) ) {
52  return -6;
53  }
54  if( LAPACKE_chp_nancheck( n, bp ) ) {
55  return -7;
56  }
57  }
58 #endif
59  /* Allocate memory for working array(s) */
60  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n-2) );
61  if( rwork == NULL ) {
63  goto exit_level_0;
64  }
65  work = (lapack_complex_float*)
66  LAPACKE_malloc( sizeof(lapack_complex_float) * MAX(1,2*n-1) );
67  if( work == NULL ) {
69  goto exit_level_1;
70  }
71  /* Call middle-level interface */
72  info = LAPACKE_chpgv_work( matrix_layout, itype, jobz, uplo, n, ap, bp, w, z,
73  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_chpgv", info );
81  }
82  return info;
83 }
lapack_int LAPACKE_chpgv_work(int matrix_layout, lapack_int itype, char jobz, char uplo, lapack_int n, lapack_complex_float *ap, lapack_complex_float *bp, float *w, lapack_complex_float *z, lapack_int ldz, lapack_complex_float *work, float *rwork)
#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
#define MAX(x, y)
Definition: lapacke_utils.h:47
lapack_logical LAPACKE_chp_nancheck(lapack_int n, const lapack_complex_float *ap)
#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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