LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_zhpevx()

lapack_int LAPACKE_zhpevx ( int  matrix_layout,
char  jobz,
char  range,
char  uplo,
lapack_int  n,
lapack_complex_double *  ap,
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 
)

Definition at line 35 of file lapacke_zhpevx.c.

41{
42 lapack_int info = 0;
43 lapack_int* iwork = NULL;
44 double* rwork = NULL;
45 lapack_complex_double* work = NULL;
46 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47 LAPACKE_xerbla( "LAPACKE_zhpevx", -1 );
48 return -1;
49 }
50#ifndef LAPACK_DISABLE_NAN_CHECK
51 if( LAPACKE_get_nancheck() ) {
52 /* Optionally check input matrices for NaNs */
53 if( LAPACKE_d_nancheck( 1, &abstol, 1 ) ) {
54 return -11;
55 }
56 if( LAPACKE_zhp_nancheck( n, ap ) ) {
57 return -6;
58 }
59 if( LAPACKE_lsame( range, 'v' ) ) {
60 if( LAPACKE_d_nancheck( 1, &vl, 1 ) ) {
61 return -7;
62 }
63 }
64 if( LAPACKE_lsame( range, 'v' ) ) {
65 if( LAPACKE_d_nancheck( 1, &vu, 1 ) ) {
66 return -8;
67 }
68 }
69 }
70#endif
71 /* Allocate memory for working array(s) */
72 iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,5*n) );
73 if( iwork == NULL ) {
74 info = LAPACK_WORK_MEMORY_ERROR;
75 goto exit_level_0;
76 }
77 rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,7*n) );
78 if( rwork == NULL ) {
79 info = LAPACK_WORK_MEMORY_ERROR;
80 goto exit_level_1;
81 }
82 work = (lapack_complex_double*)
83 LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
84 if( work == NULL ) {
85 info = LAPACK_WORK_MEMORY_ERROR;
86 goto exit_level_2;
87 }
88 /* Call middle-level interface */
89 info = LAPACKE_zhpevx_work( matrix_layout, jobz, range, uplo, n, ap, vl, vu,
90 il, iu, abstol, m, w, z, ldz, work, rwork,
91 iwork, ifail );
92 /* Release memory and exit */
93 LAPACKE_free( work );
94exit_level_2:
95 LAPACKE_free( rwork );
96exit_level_1:
97 LAPACKE_free( iwork );
98exit_level_0:
99 if( info == LAPACK_WORK_MEMORY_ERROR ) {
100 LAPACKE_xerbla( "LAPACKE_zhpevx", info );
101 }
102 return info;
103}
lapack_int
#define lapack_int
Definition: lapack.h:87
lapack_complex_double
#define lapack_complex_double
Definition: lapack.h:64
LAPACK_WORK_MEMORY_ERROR
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
LAPACKE_free
#define LAPACKE_free(p)
Definition: lapacke.h:46
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
LAPACKE_get_nancheck
int LAPACKE_get_nancheck(void)
Definition: lapacke_nancheck.c:42
LAPACKE_zhpevx_work
lapack_int LAPACKE_zhpevx_work(int matrix_layout, char jobz, char range, char uplo, lapack_int n, lapack_complex_double *ap, 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)
Definition: lapacke_zhpevx_work.c:35
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
LAPACKE_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
LAPACKE_xerbla
void LAPACKE_xerbla(const char *name, lapack_int info)
Definition: lapacke_xerbla.c:36
LAPACKE_zhp_nancheck
lapack_logical LAPACKE_zhp_nancheck(lapack_int n, const lapack_complex_double *ap)
Definition: lapacke_zhp_nancheck.c:39
LAPACKE_d_nancheck
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
Definition: lapacke_d_nancheck.c:36
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:46
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