LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_zgees()

lapack_int LAPACKE_zgees ( int  matrix_layout,
char  jobvs,
char  sort,
LAPACK_Z_SELECT1  select,
lapack_int  n,
lapack_complex_double a,
lapack_int  lda,
lapack_int sdim,
lapack_complex_double w,
lapack_complex_double vs,
lapack_int  ldvs 
)

Definition at line 36 of file lapacke_zgees.c.

41 {
42  lapack_int info = 0;
43  lapack_int lwork = -1;
44  lapack_logical* bwork = NULL;
45  double* rwork = NULL;
46  lapack_complex_double* work = NULL;
47  lapack_complex_double work_query;
48  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
49  LAPACKE_xerbla( "LAPACKE_zgees", -1 );
50  return -1;
51  }
52 #ifndef LAPACK_DISABLE_NAN_CHECK
53  /* Optionally check input matrices for NaNs */
54  if( LAPACKE_zge_nancheck( matrix_layout, n, n, a, lda ) ) {
55  return -6;
56  }
57 #endif
58  /* Allocate memory for working array(s) */
59  if( LAPACKE_lsame( sort, 's' ) ) {
60  bwork = (lapack_logical*)
61  LAPACKE_malloc( sizeof(lapack_logical) * MAX(1,n) );
62  if( bwork == NULL ) {
64  goto exit_level_0;
65  }
66  }
67  rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,n) );
68  if( rwork == NULL ) {
70  goto exit_level_1;
71  }
72  /* Query optimal working array(s) size */
73  info = LAPACKE_zgees_work( matrix_layout, jobvs, sort, select, n, a, lda,
74  sdim, w, vs, ldvs, &work_query, lwork, rwork,
75  bwork );
76  if( info != 0 ) {
77  goto exit_level_2;
78  }
79  lwork = LAPACK_Z2INT( work_query );
80  /* Allocate memory for work arrays */
81  work = (lapack_complex_double*)
82  LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
83  if( work == NULL ) {
85  goto exit_level_2;
86  }
87  /* Call middle-level interface */
88  info = LAPACKE_zgees_work( matrix_layout, jobvs, sort, select, n, a, lda,
89  sdim, w, vs, ldvs, work, lwork, rwork, bwork );
90  /* Release memory and exit */
91  LAPACKE_free( work );
92 exit_level_2:
93  LAPACKE_free( rwork );
94 exit_level_1:
95  if( LAPACKE_lsame( sort, 's' ) ) {
96  LAPACKE_free( bwork );
97  }
98 exit_level_0:
99  if( info == LAPACK_WORK_MEMORY_ERROR ) {
100  LAPACKE_xerbla( "LAPACKE_zgees", info );
101  }
102  return info;
103 }
#define lapack_logical
Definition: lapacke.h:51
#define LAPACK_Z2INT(x)
Definition: lapacke.h:117
#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_zgees_work(int matrix_layout, char jobvs, char sort, LAPACK_Z_SELECT1 select, lapack_int n, lapack_complex_double *a, lapack_int lda, lapack_int *sdim, lapack_complex_double *w, lapack_complex_double *vs, lapack_int ldvs, lapack_complex_double *work, lapack_int lwork, double *rwork, lapack_logical *bwork)
#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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