LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ctrevc_work()

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

Definition at line 36 of file lapacke_ctrevc_work.c.

43 {
44  lapack_int info = 0;
45  if( matrix_layout == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_ctrevc( &side, &howmny, select, &n, t, &ldt, vl, &ldvl, vr,
48  &ldvr, &mm, m, work, rwork, &info );
49  if( info < 0 ) {
50  info = info - 1;
51  }
52  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
53  lapack_int ldt_t = MAX(1,n);
54  lapack_int ldvl_t = MAX(1,n);
55  lapack_int ldvr_t = MAX(1,n);
56  lapack_complex_float* t_t = NULL;
57  lapack_complex_float* vl_t = NULL;
58  lapack_complex_float* vr_t = NULL;
59  /* Check leading dimension(s) */
60  if( ldt < n ) {
61  info = -7;
62  LAPACKE_xerbla( "LAPACKE_ctrevc_work", info );
63  return info;
64  }
65  if( ldvl < mm ) {
66  info = -9;
67  LAPACKE_xerbla( "LAPACKE_ctrevc_work", info );
68  return info;
69  }
70  if( ldvr < mm ) {
71  info = -11;
72  LAPACKE_xerbla( "LAPACKE_ctrevc_work", info );
73  return info;
74  }
75  /* Allocate memory for temporary array(s) */
76  t_t = (lapack_complex_float*)
77  LAPACKE_malloc( sizeof(lapack_complex_float) * ldt_t * MAX(1,n) );
78  if( t_t == NULL ) {
80  goto exit_level_0;
81  }
82  if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'l' ) ) {
83  vl_t = (lapack_complex_float*)
85  ldvl_t * MAX(1,mm) );
86  if( vl_t == NULL ) {
88  goto exit_level_1;
89  }
90  }
91  if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'r' ) ) {
92  vr_t = (lapack_complex_float*)
94  ldvr_t * MAX(1,mm) );
95  if( vr_t == NULL ) {
97  goto exit_level_2;
98  }
99  }
100  /* Transpose input matrices */
101  LAPACKE_cge_trans( matrix_layout, n, n, t, ldt, t_t, ldt_t );
102  if( ( LAPACKE_lsame( side, 'l' ) || LAPACKE_lsame( side, 'b' ) ) &&
103  LAPACKE_lsame( howmny, 'b' ) ) {
104  LAPACKE_cge_trans( matrix_layout, n, mm, vl, ldvl, vl_t, ldvl_t );
105  }
106  if( ( LAPACKE_lsame( side, 'r' ) || LAPACKE_lsame( side, 'b' ) ) &&
107  LAPACKE_lsame( howmny, 'b' ) ) {
108  LAPACKE_cge_trans( matrix_layout, n, mm, vr, ldvr, vr_t, ldvr_t );
109  }
110  /* Call LAPACK function and adjust info */
111  LAPACK_ctrevc( &side, &howmny, select, &n, t_t, &ldt_t, vl_t, &ldvl_t,
112  vr_t, &ldvr_t, &mm, m, work, rwork, &info );
113  if( info < 0 ) {
114  info = info - 1;
115  }
116  /* Transpose output matrices */
117  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, t_t, ldt_t, t, ldt );
118  if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'l' ) ) {
119  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, mm, vl_t, ldvl_t, vl,
120  ldvl );
121  }
122  if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'r' ) ) {
123  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, mm, vr_t, ldvr_t, vr,
124  ldvr );
125  }
126  /* Release memory and exit */
127  if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'r' ) ) {
128  LAPACKE_free( vr_t );
129  }
130 exit_level_2:
131  if( LAPACKE_lsame( side, 'b' ) || LAPACKE_lsame( side, 'l' ) ) {
132  LAPACKE_free( vl_t );
133  }
134 exit_level_1:
135  LAPACKE_free( t_t );
136 exit_level_0:
137  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
138  LAPACKE_xerbla( "LAPACKE_ctrevc_work", info );
139  }
140  } else {
141  info = -1;
142  LAPACKE_xerbla( "LAPACKE_ctrevc_work", info );
143  }
144  return info;
145 }
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define lapack_complex_float
Definition: lapacke.h:74
#define lapack_int
Definition: lapacke.h:47
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)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACKE_free(p)
Definition: lapacke.h:113
void LAPACK_ctrevc(char *side, char *howmny, const lapack_logical *select, lapack_int *n, lapack_complex_float *t, lapack_int *ldt, lapack_complex_float *vl, lapack_int *ldvl, lapack_complex_float *vr, lapack_int *ldvr, lapack_int *mm, lapack_int *m, lapack_complex_float *work, float *rwork, lapack_int *info)
void LAPACKE_xerbla(const char *name, lapack_int info)
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