LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ 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 35 of file lapacke_shsein.c.

41{
42 lapack_int info = 0;
43 float* work = NULL;
44 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
45 LAPACKE_xerbla( "LAPACKE_shsein", -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_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 }
71#endif
72 /* Allocate memory for working array(s) */
73 work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) * MAX(1,n+2) );
74 if( work == NULL ) {
76 goto exit_level_0;
77 }
78 /* Call middle-level interface */
79 info = LAPACKE_shsein_work( matrix_layout, job, eigsrc, initv, select, n, h,
80 ldh, wr, wi, vl, ldvl, vr, ldvr, mm, m, work,
81 ifaill, ifailr );
82 /* Release memory and exit */
83 LAPACKE_free( work );
84exit_level_0:
85 if( info == LAPACK_WORK_MEMORY_ERROR ) {
86 LAPACKE_xerbla( "LAPACKE_shsein", info );
87 }
88 return info;
89}
#define lapack_int
Definition: lapack.h:87
#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
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
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)
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_s_nancheck(lapack_int n, const float *x, lapack_int incx)
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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