LAPACK  3.10.0
LAPACK: Linear Algebra PACKage
lapacke_zhpgvx.c
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28 *****************************************************************************
29 * Contents: Native high-level C interface to LAPACK function zhpgvx
30 * Author: Intel Corporation
31 *****************************************************************************/
32 
33 #include "lapacke_utils.h"
34 
35 lapack_int LAPACKE_zhpgvx( int matrix_layout, lapack_int itype, char jobz,
36  char range, char uplo, lapack_int n,
38  double vl, double vu, lapack_int il, lapack_int iu,
39  double abstol, lapack_int* m, double* w,
41  lapack_int* ifail )
42 {
43  lapack_int info = 0;
44  lapack_int* iwork = NULL;
45  double* rwork = NULL;
46  lapack_complex_double* work = NULL;
47  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48  LAPACKE_xerbla( "LAPACKE_zhpgvx", -1 );
49  return -1;
50  }
51 #ifndef LAPACK_DISABLE_NAN_CHECK
52  if( LAPACKE_get_nancheck() ) {
53  /* Optionally check input matrices for NaNs */
54  if( LAPACKE_d_nancheck( 1, &abstol, 1 ) ) {
55  return -13;
56  }
57  if( LAPACKE_zhp_nancheck( n, ap ) ) {
58  return -7;
59  }
60  if( LAPACKE_zhp_nancheck( n, bp ) ) {
61  return -8;
62  }
63  if( LAPACKE_lsame( range, 'v' ) ) {
64  if( LAPACKE_d_nancheck( 1, &vl, 1 ) ) {
65  return -9;
66  }
67  }
68  if( LAPACKE_lsame( range, 'v' ) ) {
69  if( LAPACKE_d_nancheck( 1, &vu, 1 ) ) {
70  return -10;
71  }
72  }
73  }
74 #endif
75  /* Allocate memory for working array(s) */
76  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,5*n) );
77  if( iwork == NULL ) {
79  goto exit_level_0;
80  }
81  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,7*n) );
82  if( rwork == NULL ) {
84  goto exit_level_1;
85  }
86  work = (lapack_complex_double*)
87  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
88  if( work == NULL ) {
90  goto exit_level_2;
91  }
92  /* Call middle-level interface */
93  info = LAPACKE_zhpgvx_work( matrix_layout, itype, jobz, range, uplo, n, ap,
94  bp, vl, vu, il, iu, abstol, m, w, z, ldz, work,
95  rwork, iwork, ifail );
96  /* Release memory and exit */
97  LAPACKE_free( work );
98 exit_level_2:
99  LAPACKE_free( rwork );
100 exit_level_1:
101  LAPACKE_free( iwork );
102 exit_level_0:
103  if( info == LAPACK_WORK_MEMORY_ERROR ) {
104  LAPACKE_xerbla( "LAPACKE_zhpgvx", info );
105  }
106  return info;
107 }
#define lapack_int
Definition: lapack.h:83
#define lapack_complex_double
Definition: lapack.h:63
#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
lapack_int LAPACKE_zhpgvx_work(int matrix_layout, lapack_int itype, char jobz, char range, char uplo, lapack_int n, lapack_complex_double *ap, lapack_complex_double *bp, double vl, double vu, lapack_int il, lapack_int iu, double abstol, lapack_int *m, double *w, lapack_complex_double *z, lapack_int ldz, lapack_complex_double *work, double *rwork, lapack_int *iwork, lapack_int *ifail)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_zhp_nancheck(lapack_int n, const lapack_complex_double *ap)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_int LAPACKE_zhpgvx(int matrix_layout, lapack_int itype, char jobz, char range, char uplo, lapack_int n, lapack_complex_double *ap, lapack_complex_double *bp, double vl, double vu, lapack_int il, lapack_int iu, double abstol, lapack_int *m, double *w, lapack_complex_double *z, lapack_int ldz, lapack_int *ifail)