LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_strevc()

lapack_int LAPACKE_strevc ( int  matrix_layout,
char  side,
char  howmny,
lapack_logical select,
lapack_int  n,
const float *  t,
lapack_int  ldt,
float *  vl,
lapack_int  ldvl,
float *  vr,
lapack_int  ldvr,
lapack_int  mm,
lapack_int m 
)

Definition at line 36 of file lapacke_strevc.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_strevc", -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, t, ldt ) ) {
52  return -6;
53  }
54  if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'l' ) ) {
55  if( LAPACKE_sge_nancheck( matrix_layout, n, mm, vl, ldvl ) ) {
56  return -8;
57  }
58  }
59  if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'r' ) ) {
60  if( LAPACKE_sge_nancheck( matrix_layout, n, mm, vr, ldvr ) ) {
61  return -10;
62  }
63  }
64  }
65 #endif
66  /* Allocate memory for working array(s) */
67  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,3*n) );
68  if( work == NULL ) {
70  goto exit_level_0;
71  }
72  /* Call middle-level interface */
73  info = LAPACKE_strevc_work( matrix_layout, side, howmny, select, n, t, ldt,
74  vl, ldvl, vr, ldvr, mm, m, work );
75  /* Release memory and exit */
76  LAPACKE_free( work );
77 exit_level_0:
78  if( info == LAPACK_WORK_MEMORY_ERROR ) {
79  LAPACKE_xerbla( "LAPACKE_strevc", info );
80  }
81  return info;
82 }
#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)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#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
lapack_int LAPACKE_strevc_work(int matrix_layout, char side, char howmny, lapack_logical *select, lapack_int n, const float *t, lapack_int ldt, float *vl, lapack_int ldvl, float *vr, lapack_int ldvr, lapack_int mm, lapack_int *m, float *work)
int LAPACKE_get_nancheck()
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