LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cgees()

lapack_int LAPACKE_cgees ( int  matrix_layout,
char  jobvs,
char  sort,
LAPACK_C_SELECT1  select,
lapack_int  n,
lapack_complex_float a,
lapack_int  lda,
lapack_int sdim,
lapack_complex_float w,
lapack_complex_float vs,
lapack_int  ldvs 
)

Definition at line 36 of file lapacke_cgees.c.

41 {
42  lapack_int info = 0;
43  lapack_int lwork = -1;
44  lapack_logical* bwork = NULL;
45  float* rwork = NULL;
46  lapack_complex_float* work = NULL;
47  lapack_complex_float work_query;
48  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
49  LAPACKE_xerbla( "LAPACKE_cgees", -1 );
50  return -1;
51  }
52 #ifndef LAPACK_DISABLE_NAN_CHECK
53  if( LAPACKE_get_nancheck() ) {
54  /* Optionally check input matrices for NaNs */
55  if( LAPACKE_cge_nancheck( matrix_layout, n, n, a, lda ) ) {
56  return -6;
57  }
58  }
59 #endif
60  /* Allocate memory for working array(s) */
61  if( LAPACKE_lsame( sort, 's' ) ) {
62  bwork = (lapack_logical*)
63  LAPACKE_malloc( sizeof(lapack_logical) * MAX(1,n) );
64  if( bwork == NULL ) {
66  goto exit_level_0;
67  }
68  }
69  rwork = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
70  if( rwork == NULL ) {
72  goto exit_level_1;
73  }
74  /* Query optimal working array(s) size */
75  info = LAPACKE_cgees_work( matrix_layout, jobvs, sort, select, n, a, lda,
76  sdim, w, vs, ldvs, &work_query, lwork, rwork,
77  bwork );
78  if( info != 0 ) {
79  goto exit_level_2;
80  }
81  lwork = LAPACK_C2INT( work_query );
82  /* Allocate memory for work arrays */
83  work = (lapack_complex_float*)
84  LAPACKE_malloc( sizeof(lapack_complex_float) * lwork );
85  if( work == NULL ) {
87  goto exit_level_2;
88  }
89  /* Call middle-level interface */
90  info = LAPACKE_cgees_work( matrix_layout, jobvs, sort, select, n, a, lda,
91  sdim, w, vs, ldvs, work, lwork, rwork, bwork );
92  /* Release memory and exit */
93  LAPACKE_free( work );
94 exit_level_2:
95  LAPACKE_free( rwork );
96 exit_level_1:
97  if( LAPACKE_lsame( sort, 's' ) ) {
98  LAPACKE_free( bwork );
99  }
100 exit_level_0:
101  if( info == LAPACK_WORK_MEMORY_ERROR ) {
102  LAPACKE_xerbla( "LAPACKE_cgees", info );
103  }
104  return info;
105 }
#define lapack_logical
Definition: lapacke.h:51
#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_float
Definition: lapacke.h:74
lapack_logical LAPACKE_cge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_C2INT(x)
Definition: lapacke.h:116
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_cgees_work(int matrix_layout, char jobvs, char sort, LAPACK_C_SELECT1 select, lapack_int n, lapack_complex_float *a, lapack_int lda, lapack_int *sdim, lapack_complex_float *w, lapack_complex_float *vs, lapack_int ldvs, lapack_complex_float *work, lapack_int lwork, float *rwork, lapack_logical *bwork)
int LAPACKE_get_nancheck()
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