LAPACK  3.7.1
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 36 of file lapacke_ctgsna_work.c.

45 {
46  lapack_int info = 0;
47  if( matrix_layout == LAPACK_COL_MAJOR ) {
48  /* Call LAPACK function and adjust info */
49  LAPACK_ctgsna( &job, &howmny, select, &n, a, &lda, b, &ldb, vl, &ldvl,
50  vr, &ldvr, s, dif, &mm, m, work, &lwork, iwork, &info );
51  if( info < 0 ) {
52  info = info - 1;
53  }
54  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
55  lapack_int lda_t = MAX(1,n);
56  lapack_int ldb_t = MAX(1,n);
57  lapack_int ldvl_t = MAX(1,n);
58  lapack_int ldvr_t = MAX(1,n);
59  lapack_complex_float* a_t = NULL;
60  lapack_complex_float* b_t = NULL;
61  lapack_complex_float* vl_t = NULL;
62  lapack_complex_float* vr_t = NULL;
63  /* Check leading dimension(s) */
64  if( lda < n ) {
65  info = -7;
66  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
67  return info;
68  }
69  if( ldb < n ) {
70  info = -9;
71  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
72  return info;
73  }
74  if( ldvl < mm ) {
75  info = -11;
76  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
77  return info;
78  }
79  if( ldvr < mm ) {
80  info = -13;
81  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
82  return info;
83  }
84  /* Query optimal working array(s) size if requested */
85  if( lwork == -1 ) {
86  LAPACK_ctgsna( &job, &howmny, select, &n, a, &lda_t, b, &ldb_t, vl,
87  &ldvl_t, vr, &ldvr_t, s, dif, &mm, m, work, &lwork,
88  iwork, &info );
89  return (info < 0) ? (info - 1) : info;
90  }
91  /* Allocate memory for temporary array(s) */
92  a_t = (lapack_complex_float*)
93  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
94  if( a_t == NULL ) {
96  goto exit_level_0;
97  }
98  b_t = (lapack_complex_float*)
99  LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,n) );
100  if( b_t == NULL ) {
102  goto exit_level_1;
103  }
104  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
105  vl_t = (lapack_complex_float*)
107  ldvl_t * MAX(1,mm) );
108  if( vl_t == NULL ) {
110  goto exit_level_2;
111  }
112  }
113  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
114  vr_t = (lapack_complex_float*)
116  ldvr_t * MAX(1,mm) );
117  if( vr_t == NULL ) {
119  goto exit_level_3;
120  }
121  }
122  /* Transpose input matrices */
123  LAPACKE_cge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
124  LAPACKE_cge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
125  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
126  LAPACKE_cge_trans( matrix_layout, n, mm, vl, ldvl, vl_t, ldvl_t );
127  }
128  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
129  LAPACKE_cge_trans( matrix_layout, n, mm, vr, ldvr, vr_t, ldvr_t );
130  }
131  /* Call LAPACK function and adjust info */
132  LAPACK_ctgsna( &job, &howmny, select, &n, a_t, &lda_t, b_t, &ldb_t,
133  vl_t, &ldvl_t, vr_t, &ldvr_t, s, dif, &mm, m, work,
134  &lwork, iwork, &info );
135  if( info < 0 ) {
136  info = info - 1;
137  }
138  /* Release memory and exit */
139  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
140  LAPACKE_free( vr_t );
141  }
142 exit_level_3:
143  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'e' ) ) {
144  LAPACKE_free( vl_t );
145  }
146 exit_level_2:
147  LAPACKE_free( b_t );
148 exit_level_1:
149  LAPACKE_free( a_t );
150 exit_level_0:
151  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
152  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
153  }
154  } else {
155  info = -1;
156  LAPACKE_xerbla( "LAPACKE_ctgsna_work", info );
157  }
158  return info;
159 }
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_ctgsna(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, 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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