LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cgees_work()

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 
)

Definition at line 36 of file lapacke_cgees_work.c.

43 {
44  lapack_int info = 0;
45  if( matrix_layout == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_cgees( &jobvs, &sort, select, &n, a, &lda, sdim, w, vs, &ldvs,
48  work, &lwork, rwork, bwork, &info );
49  if( info < 0 ) {
50  info = info - 1;
51  }
52  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
53  lapack_int lda_t = MAX(1,n);
54  lapack_int ldvs_t = MAX(1,n);
55  lapack_complex_float* a_t = NULL;
56  lapack_complex_float* vs_t = NULL;
57  /* Check leading dimension(s) */
58  if( lda < n ) {
59  info = -7;
60  LAPACKE_xerbla( "LAPACKE_cgees_work", info );
61  return info;
62  }
63  if( ldvs < n ) {
64  info = -11;
65  LAPACKE_xerbla( "LAPACKE_cgees_work", info );
66  return info;
67  }
68  /* Query optimal working array(s) size if requested */
69  if( lwork == -1 ) {
70  LAPACK_cgees( &jobvs, &sort, select, &n, a, &lda_t, sdim, w, vs,
71  &ldvs_t, work, &lwork, rwork, bwork, &info );
72  return (info < 0) ? (info - 1) : info;
73  }
74  /* Allocate memory for temporary array(s) */
75  a_t = (lapack_complex_float*)
76  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
77  if( a_t == NULL ) {
79  goto exit_level_0;
80  }
81  if( LAPACKE_lsame( jobvs, 'v' ) ) {
82  vs_t = (lapack_complex_float*)
84  ldvs_t * MAX(1,n) );
85  if( vs_t == NULL ) {
87  goto exit_level_1;
88  }
89  }
90  /* Transpose input matrices */
91  LAPACKE_cge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
92  /* Call LAPACK function and adjust info */
93  LAPACK_cgees( &jobvs, &sort, select, &n, a_t, &lda_t, sdim, w, vs_t,
94  &ldvs_t, work, &lwork, rwork, bwork, &info );
95  if( info < 0 ) {
96  info = info - 1;
97  }
98  /* Transpose output matrices */
99  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
100  if( LAPACKE_lsame( jobvs, 'v' ) ) {
101  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, vs_t, ldvs_t, vs, ldvs );
102  }
103  /* Release memory and exit */
104  if( LAPACKE_lsame( jobvs, 'v' ) ) {
105  LAPACKE_free( vs_t );
106  }
107 exit_level_1:
108  LAPACKE_free( a_t );
109 exit_level_0:
110  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
111  LAPACKE_xerbla( "LAPACKE_cgees_work", info );
112  }
113  } else {
114  info = -1;
115  LAPACKE_xerbla( "LAPACKE_cgees_work", info );
116  }
117  return info;
118 }
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
void LAPACK_cgees(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, lapack_int *info)
#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
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
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