LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dhsein()

lapack_int LAPACKE_dhsein ( int  matrix_layout,
char  job,
char  eigsrc,
char  initv,
lapack_logical select,
lapack_int  n,
const double *  h,
lapack_int  ldh,
double *  wr,
const double *  wi,
double *  vl,
lapack_int  ldvl,
double *  vr,
lapack_int  ldvr,
lapack_int  mm,
lapack_int m,
lapack_int ifaill,
lapack_int ifailr 
)

Definition at line 36 of file lapacke_dhsein.c.

43 {
44  lapack_int info = 0;
45  double* work = NULL;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_dhsein", -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_dge_nancheck( matrix_layout, n, n, h, ldh ) ) {
54  return -7;
55  }
56  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
57  if( LAPACKE_dge_nancheck( matrix_layout, n, mm, vl, ldvl ) ) {
58  return -11;
59  }
60  }
61  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
62  if( LAPACKE_dge_nancheck( matrix_layout, n, mm, vr, ldvr ) ) {
63  return -13;
64  }
65  }
66  if( LAPACKE_d_nancheck( n, wi, 1 ) ) {
67  return -10;
68  }
69  if( LAPACKE_d_nancheck( n, wr, 1 ) ) {
70  return -9;
71  }
72  }
73 #endif
74  /* Allocate memory for working array(s) */
75  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) * MAX(1,n+2) );
76  if( work == NULL ) {
78  goto exit_level_0;
79  }
80  /* Call middle-level interface */
81  info = LAPACKE_dhsein_work( matrix_layout, job, eigsrc, initv, select, n, h,
82  ldh, wr, wi, vl, ldvl, vr, ldvr, mm, m, work,
83  ifaill, ifailr );
84  /* Release memory and exit */
85  LAPACKE_free( work );
86 exit_level_0:
87  if( info == LAPACK_WORK_MEMORY_ERROR ) {
88  LAPACKE_xerbla( "LAPACKE_dhsein", info );
89  }
90  return info;
91 }
#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 MAX(x, y)
Definition: lapacke_utils.h:47
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#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_dhsein_work(int matrix_layout, char job, char eigsrc, char initv, lapack_logical *select, lapack_int n, const double *h, lapack_int ldh, double *wr, const double *wi, double *vl, lapack_int ldvl, double *vr, lapack_int ldvr, lapack_int mm, lapack_int *m, double *work, lapack_int *ifaill, lapack_int *ifailr)
int LAPACKE_get_nancheck()
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