LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ztgevc()

lapack_int LAPACKE_ztgevc ( int  matrix_layout,
char  side,
char  howmny,
const lapack_logical select,
lapack_int  n,
const lapack_complex_double s,
lapack_int  lds,
const lapack_complex_double p,
lapack_int  ldp,
lapack_complex_double vl,
lapack_int  ldvl,
lapack_complex_double vr,
lapack_int  ldvr,
lapack_int  mm,
lapack_int m 
)

Definition at line 36 of file lapacke_ztgevc.c.

43 {
44  lapack_int info = 0;
45  double* rwork = NULL;
46  lapack_complex_double* work = NULL;
47  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48  LAPACKE_xerbla( "LAPACKE_ztgevc", -1 );
49  return -1;
50  }
51 #ifndef LAPACK_DISABLE_NAN_CHECK
52  /* Optionally check input matrices for NaNs */
53  if( LAPACKE_zge_nancheck( matrix_layout, n, n, p, ldp ) ) {
54  return -8;
55  }
56  if( LAPACKE_zge_nancheck( matrix_layout, n, n, s, lds ) ) {
57  return -6;
58  }
59  if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'l' ) ) {
60  if( LAPACKE_zge_nancheck( matrix_layout, n, mm, vl, ldvl ) ) {
61  return -10;
62  }
63  }
64  if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'r' ) ) {
65  if( LAPACKE_zge_nancheck( matrix_layout, n, mm, vr, ldvr ) ) {
66  return -12;
67  }
68  }
69 #endif
70  /* Allocate memory for working array(s) */
71  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,2*n) );
72  if( rwork == NULL ) {
74  goto exit_level_0;
75  }
76  work = (lapack_complex_double*)
77  LAPACKE_malloc( sizeof(lapack_complex_double) * MAX(1,2*n) );
78  if( work == NULL ) {
80  goto exit_level_1;
81  }
82  /* Call middle-level interface */
83  info = LAPACKE_ztgevc_work( matrix_layout, side, howmny, select, n, s, lds,
84  p, ldp, vl, ldvl, vr, ldvr, mm, m, work,
85  rwork );
86  /* Release memory and exit */
87  LAPACKE_free( work );
88 exit_level_1:
89  LAPACKE_free( rwork );
90 exit_level_0:
91  if( info == LAPACK_WORK_MEMORY_ERROR ) {
92  LAPACKE_xerbla( "LAPACKE_ztgevc", info );
93  }
94  return info;
95 }
#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 lapack_complex_double
Definition: lapacke.h:90
#define MAX(x, y)
Definition: lapacke_utils.h:47
lapack_int LAPACKE_ztgevc_work(int matrix_layout, char side, char howmny, const lapack_logical *select, lapack_int n, const lapack_complex_double *s, lapack_int lds, const lapack_complex_double *p, lapack_int ldp, lapack_complex_double *vl, lapack_int ldvl, lapack_complex_double *vr, lapack_int ldvr, lapack_int mm, lapack_int *m, lapack_complex_double *work, double *rwork)
#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_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
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