LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_shsein()

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

Definition at line 36 of file lapacke_shsein.c.

42 {
43  lapack_int info = 0;
44  float* work = NULL;
45  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
46  LAPACKE_xerbla( "LAPACKE_shsein", -1 );
47  return -1;
48  }
49 #ifndef LAPACK_DISABLE_NAN_CHECK
50  /* Optionally check input matrices for NaNs */
51  if( LAPACKE_sge_nancheck( matrix_layout, n, n, h, ldh ) ) {
52  return -7;
53  }
54  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
55  if( LAPACKE_sge_nancheck( matrix_layout, n, mm, vl, ldvl ) ) {
56  return -11;
57  }
58  }
59  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
60  if( LAPACKE_sge_nancheck( matrix_layout, n, mm, vr, ldvr ) ) {
61  return -13;
62  }
63  }
64  if( LAPACKE_s_nancheck( n, wi, 1 ) ) {
65  return -10;
66  }
67  if( LAPACKE_s_nancheck( n, wr, 1 ) ) {
68  return -9;
69  }
70 #endif
71  /* Allocate memory for working array(s) */
72  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) * MAX(1,n+2) );
73  if( work == NULL ) {
75  goto exit_level_0;
76  }
77  /* Call middle-level interface */
78  info = LAPACKE_shsein_work( matrix_layout, job, eigsrc, initv, select, n, h,
79  ldh, wr, wi, vl, ldvl, vr, ldvr, mm, m, work,
80  ifaill, ifailr );
81  /* Release memory and exit */
82  LAPACKE_free( work );
83 exit_level_0:
84  if( info == LAPACK_WORK_MEMORY_ERROR ) {
85  LAPACKE_xerbla( "LAPACKE_shsein", info );
86  }
87  return info;
88 }
#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
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:47
lapack_int LAPACKE_shsein_work(int matrix_layout, char job, char eigsrc, char initv, lapack_logical *select, lapack_int n, const float *h, lapack_int ldh, float *wr, const float *wi, float *vl, lapack_int ldvl, float *vr, lapack_int ldvr, lapack_int mm, lapack_int *m, float *work, lapack_int *ifaill, lapack_int *ifailr)
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
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
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