LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
lapacke_ztgsna_work.c
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28 *****************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function ztgsna
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_ztgsna_work( int matrix_layout, char job, char howmny,
37  const lapack_logical* select, lapack_int n,
38  const lapack_complex_double* a, lapack_int lda,
39  const lapack_complex_double* b, lapack_int ldb,
40  const lapack_complex_double* vl,
41  lapack_int ldvl,
42  const lapack_complex_double* vr,
43  lapack_int ldvr, double* s, double* dif,
44  lapack_int mm, lapack_int* m,
45  lapack_complex_double* work, lapack_int lwork,
46  lapack_int* iwork )
47 {
48  lapack_int info = 0;
49  if( matrix_layout == LAPACK_COL_MAJOR ) {
50  /* Call LAPACK function and adjust info */
51  LAPACK_ztgsna( &job, &howmny, select, &n, a, &lda, b, &ldb, vl, &ldvl,
52  vr, &ldvr, s, dif, &mm, m, work, &lwork, iwork, &info );
53  if( info < 0 ) {
54  info = info - 1;
55  }
56  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
57  lapack_int lda_t = MAX(1,n);
58  lapack_int ldb_t = MAX(1,n);
59  lapack_int ldvl_t = MAX(1,n);
60  lapack_int ldvr_t = MAX(1,n);
61  lapack_complex_double* a_t = NULL;
62  lapack_complex_double* b_t = NULL;
63  lapack_complex_double* vl_t = NULL;
64  lapack_complex_double* vr_t = NULL;
65  /* Check leading dimension(s) */
66  if( lda < n ) {
67  info = -7;
68  LAPACKE_xerbla( "LAPACKE_ztgsna_work", info );
69  return info;
70  }
71  if( ldb < n ) {
72  info = -9;
73  LAPACKE_xerbla( "LAPACKE_ztgsna_work", info );
74  return info;
75  }
76  if( ldvl < mm ) {
77  info = -11;
78  LAPACKE_xerbla( "LAPACKE_ztgsna_work", info );
79  return info;
80  }
81  if( ldvr < mm ) {
82  info = -13;
83  LAPACKE_xerbla( "LAPACKE_ztgsna_work", info );
84  return info;
85  }
86  /* Query optimal working array(s) size if requested */
87  if( lwork == -1 ) {
88  LAPACK_ztgsna( &job, &howmny, select, &n, a, &lda_t, b, &ldb_t, vl,
89  &ldvl_t, vr, &ldvr_t, s, dif, &mm, m, work, &lwork,
90  iwork, &info );
91  return (info < 0) ? (info - 1) : info;
92  }
93  /* Allocate memory for temporary array(s) */
94  a_t = (lapack_complex_double*)
95  LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
96  if( a_t == NULL ) {
97  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
98  goto exit_level_0;
99  }
100  b_t = (lapack_complex_double*)
101  LAPACKE_malloc( sizeof(lapack_complex_double) * ldb_t * MAX(1,n) );
102  if( b_t == NULL ) {
103  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
104  goto exit_level_1;
105  }
106  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
107  vl_t = (lapack_complex_double*)
108  LAPACKE_malloc( sizeof(lapack_complex_double) *
109  ldvl_t * MAX(1,mm) );
110  if( vl_t == NULL ) {
111  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
112  goto exit_level_2;
113  }
114  }
115  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
116  vr_t = (lapack_complex_double*)
117  LAPACKE_malloc( sizeof(lapack_complex_double) *
118  ldvr_t * MAX(1,mm) );
119  if( vr_t == NULL ) {
120  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
121  goto exit_level_3;
122  }
123  }
124  /* Transpose input matrices */
125  LAPACKE_zge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
126  LAPACKE_zge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
127  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
128  LAPACKE_zge_trans( matrix_layout, n, mm, vl, ldvl, vl_t, ldvl_t );
129  }
130  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
131  LAPACKE_zge_trans( matrix_layout, n, mm, vr, ldvr, vr_t, ldvr_t );
132  }
133  /* Call LAPACK function and adjust info */
134  LAPACK_ztgsna( &job, &howmny, select, &n, a_t, &lda_t, b_t, &ldb_t,
135  vl_t, &ldvl_t, vr_t, &ldvr_t, s, dif, &mm, m, work,
136  &lwork, iwork, &info );
137  if( info < 0 ) {
138  info = info - 1;
139  }
140  /* Release memory and exit */
141  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
142  LAPACKE_free( vr_t );
143  }
144 exit_level_3:
145  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
146  LAPACKE_free( vl_t );
147  }
148 exit_level_2:
149  LAPACKE_free( b_t );
150 exit_level_1:
151  LAPACKE_free( a_t );
152 exit_level_0:
153  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
154  LAPACKE_xerbla( "LAPACKE_ztgsna_work", info );
155  }
156  } else {
157  info = -1;
158  LAPACKE_xerbla( "LAPACKE_ztgsna_work", info );
159  }
160  return info;
161 }
LAPACKE_free
#define LAPACKE_free(p)
Definition: lapacke.h:47
LAPACK_ztgsna
void LAPACK_ztgsna(char const *job, char const *howmny, lapack_logical const *select, lapack_int const *n, lapack_complex_double const *A, lapack_int const *lda, lapack_complex_double const *B, lapack_int const *ldb, lapack_complex_double const *VL, lapack_int const *ldvl, lapack_complex_double const *VR, lapack_int const *ldvr, double *S, double *DIF, lapack_int const *mm, lapack_int *m, lapack_complex_double *work, lapack_int const *lwork, lapack_int *iwork, lapack_int *info)
lapack_int
#define lapack_int
Definition: lapack.h:21
lapacke_utils.h
LAPACKE_xerbla
void LAPACKE_xerbla(const char *name, lapack_int info)
Definition: lapacke_xerbla.c:36
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:47
LAPACKE_ztgsna_work
lapack_int LAPACKE_ztgsna_work(int matrix_layout, char job, char howmny, const lapack_logical *select, lapack_int n, const lapack_complex_double *a, lapack_int lda, const lapack_complex_double *b, lapack_int ldb, const lapack_complex_double *vl, lapack_int ldvl, const lapack_complex_double *vr, lapack_int ldvr, double *s, double *dif, lapack_int mm, lapack_int *m, lapack_complex_double *work, lapack_int lwork, lapack_int *iwork)
Definition: lapacke_ztgsna_work.c:35
LAPACK_TRANSPOSE_MEMORY_ERROR
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:57
lapack_logical
#define lapack_logical
Definition: lapack.h:25
lapack_complex_double
#define lapack_complex_double
Definition: lapack.h:70
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition: lapacke.h:44
LAPACKE_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:53
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition: lapacke.h:54
LAPACKE_zge_trans
void LAPACKE_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
Definition: lapacke_zge_trans.c:39