LAPACK  3.9.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_ctgsna_work()

lapack_int LAPACKE_ctgsna_work ( int  matrix_layout,
char  job,
char  howmny,
const lapack_logical *  select,
lapack_int  n,
const lapack_complex_float *  a,
lapack_int  lda,
const lapack_complex_float *  b,
lapack_int  ldb,
const lapack_complex_float *  vl,
lapack_int  ldvl,
const lapack_complex_float *  vr,
lapack_int  ldvr,
float *  s,
float *  dif,
lapack_int  mm,
lapack_int *  m,
lapack_complex_float *  work,
lapack_int  lwork,
lapack_int *  iwork 
)

Definition at line 35 of file lapacke_ctgsna_work.c.

44 {
45  lapack_int info = 0;
46  if( matrix_layout == LAPACK_COL_MAJOR ) {
47  /* Call LAPACK function and adjust info */
48  LAPACK_ctgsna( &job, &howmny, select, &n, a, &lda, b, &ldb, vl, &ldvl,
49  vr, &ldvr, s, dif, &mm, m, work, &lwork, iwork, &info );
50  if( info < 0 ) {
51  info = info - 1;
52  }
53  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
54  lapack_int lda_t = MAX(1,n);
55  lapack_int ldb_t = MAX(1,n);
56  lapack_int ldvl_t = MAX(1,n);
57  lapack_int ldvr_t = MAX(1,n);
58  lapack_complex_float* a_t = NULL;
59  lapack_complex_float* b_t = NULL;
60  lapack_complex_float* vl_t = NULL;
61  lapack_complex_float* vr_t = NULL;
62  /* Check leading dimension(s) */
63  if( lda < n ) {
64  info = -7;
65  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
66  return info;
67  }
68  if( ldb < n ) {
69  info = -9;
70  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
71  return info;
72  }
73  if( ldvl < mm ) {
74  info = -11;
75  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
76  return info;
77  }
78  if( ldvr < mm ) {
79  info = -13;
80  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
81  return info;
82  }
83  /* Query optimal working array(s) size if requested */
84  if( lwork == -1 ) {
85  LAPACK_ctgsna( &job, &howmny, select, &n, a, &lda_t, b, &ldb_t, vl,
86  &ldvl_t, vr, &ldvr_t, s, dif, &mm, m, work, &lwork,
87  iwork, &info );
88  return (info < 0) ? (info - 1) : info;
89  }
90  /* Allocate memory for temporary array(s) */
91  a_t = (lapack_complex_float*)
92  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
93  if( a_t == NULL ) {
94  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
95  goto exit_level_0;
96  }
97  b_t = (lapack_complex_float*)
98  LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,n) );
99  if( b_t == NULL ) {
100  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
101  goto exit_level_1;
102  }
103  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
104  vl_t = (lapack_complex_float*)
105  LAPACKE_malloc( sizeof(lapack_complex_float) *
106  ldvl_t * MAX(1,mm) );
107  if( vl_t == NULL ) {
108  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
109  goto exit_level_2;
110  }
111  }
112  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
113  vr_t = (lapack_complex_float*)
114  LAPACKE_malloc( sizeof(lapack_complex_float) *
115  ldvr_t * MAX(1,mm) );
116  if( vr_t == NULL ) {
117  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
118  goto exit_level_3;
119  }
120  }
121  /* Transpose input matrices */
122  LAPACKE_cge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
123  LAPACKE_cge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
124  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
125  LAPACKE_cge_trans( matrix_layout, n, mm, vl, ldvl, vl_t, ldvl_t );
126  }
127  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
128  LAPACKE_cge_trans( matrix_layout, n, mm, vr, ldvr, vr_t, ldvr_t );
129  }
130  /* Call LAPACK function and adjust info */
131  LAPACK_ctgsna( &job, &howmny, select, &n, a_t, &lda_t, b_t, &ldb_t,
132  vl_t, &ldvl_t, vr_t, &ldvr_t, s, dif, &mm, m, work,
133  &lwork, iwork, &info );
134  if( info < 0 ) {
135  info = info - 1;
136  }
137  /* Release memory and exit */
138  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
139  LAPACKE_free( vr_t );
140  }
141 exit_level_3:
142  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
143  LAPACKE_free( vl_t );
144  }
145 exit_level_2:
146  LAPACKE_free( b_t );
147 exit_level_1:
148  LAPACKE_free( a_t );
149 exit_level_0:
150  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
151  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
152  }
153  } else {
154  info = -1;
155  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
156  }
157  return info;
158 }
lapack_int
#define lapack_int
Definition: lapack.h:83
lapack_complex_float
#define lapack_complex_float
Definition: lapack.h:45
LAPACK_ctgsna
void LAPACK_ctgsna(char const *job, char const *howmny, lapack_logical const *select, lapack_int const *n, lapack_complex_float const *A, lapack_int const *lda, lapack_complex_float const *B, lapack_int const *ldb, lapack_complex_float const *VL, lapack_int const *ldvl, lapack_complex_float const *VR, lapack_int const *ldvr, float *S, float *DIF, lapack_int const *mm, lapack_int *m, lapack_complex_float *work, lapack_int const *lwork, lapack_int *iwork, lapack_int *info)
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
LAPACKE_free
#define LAPACKE_free(p)
Definition: lapacke.h:46
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
LAPACK_TRANSPOSE_MEMORY_ERROR
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
LAPACKE_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
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:46
LAPACKE_cge_trans
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)
Definition: lapacke_cge_trans.c:39
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