LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapack_int LAPACKE_cunbdb_work ( int  matrix_layout,
char  trans,
char  signs,
lapack_int  m,
lapack_int  p,
lapack_int  q,
lapack_complex_float *  x11,
lapack_int  ldx11,
lapack_complex_float *  x12,
lapack_int  ldx12,
lapack_complex_float *  x21,
lapack_int  ldx21,
lapack_complex_float *  x22,
lapack_int  ldx22,
float *  theta,
float *  phi,
lapack_complex_float *  taup1,
lapack_complex_float *  taup2,
lapack_complex_float *  tauq1,
lapack_complex_float *  tauq2,
lapack_complex_float *  work,
lapack_int  lwork 
)

Definition at line 36 of file lapacke_cunbdb_work.c.

48 {
49  lapack_int info = 0;
50  if( matrix_layout == LAPACK_COL_MAJOR ) {
51  /* Call LAPACK function and adjust info */
52  LAPACK_cunbdb( &trans, &signs, &m, &p, &q, x11, &ldx11, x12, &ldx12,
53  x21, &ldx21, x22, &ldx22, theta, phi, taup1, taup2,
54  tauq1, tauq2, work, &lwork, &info );
55  if( info < 0 ) {
56  info = info - 1;
57  }
58  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
59  lapack_int nrows_x11 = ( LAPACKE_lsame( trans, 'n' ) ? p : q);
60  lapack_int nrows_x12 = ( LAPACKE_lsame( trans, 'n' ) ? p : m-q);
61  lapack_int nrows_x21 = ( LAPACKE_lsame( trans, 'n' ) ? m-p : q);
62  lapack_int nrows_x22 = ( LAPACKE_lsame( trans, 'n' ) ? m-p : m-q);
63  lapack_int ldx11_t = MAX(1,nrows_x11);
64  lapack_int ldx12_t = MAX(1,nrows_x12);
65  lapack_int ldx21_t = MAX(1,nrows_x21);
66  lapack_int ldx22_t = MAX(1,nrows_x22);
67  lapack_complex_float* x11_t = NULL;
68  lapack_complex_float* x12_t = NULL;
69  lapack_complex_float* x21_t = NULL;
70  lapack_complex_float* x22_t = NULL;
71  /* Check leading dimension(s) */
72  if( ldx11 < q ) {
73  info = -8;
74  LAPACKE_xerbla( "LAPACKE_cunbdb_work", info );
75  return info;
76  }
77  if( ldx12 < m-q ) {
78  info = -10;
79  LAPACKE_xerbla( "LAPACKE_cunbdb_work", info );
80  return info;
81  }
82  if( ldx21 < q ) {
83  info = -12;
84  LAPACKE_xerbla( "LAPACKE_cunbdb_work", info );
85  return info;
86  }
87  if( ldx22 < m-q ) {
88  info = -14;
89  LAPACKE_xerbla( "LAPACKE_cunbdb_work", info );
90  return info;
91  }
92  /* Query optimal working array(s) size if requested */
93  if( lwork == -1 ) {
94  LAPACK_cunbdb( &trans, &signs, &m, &p, &q, x11, &ldx11_t, x12,
95  &ldx12_t, x21, &ldx21_t, x22, &ldx22_t, theta, phi,
96  taup1, taup2, tauq1, tauq2, work, &lwork, &info );
97  return (info < 0) ? (info - 1) : info;
98  }
99  /* Allocate memory for temporary array(s) */
100  x11_t = (lapack_complex_float*)
101  LAPACKE_malloc( sizeof(lapack_complex_float) * ldx11_t * MAX(1,q) );
102  if( x11_t == NULL ) {
103  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
104  goto exit_level_0;
105  }
106  x12_t = (lapack_complex_float*)
107  LAPACKE_malloc( sizeof(lapack_complex_float) *
108  ldx12_t * MAX(1,m-q) );
109  if( x12_t == NULL ) {
110  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
111  goto exit_level_1;
112  }
113  x21_t = (lapack_complex_float*)
114  LAPACKE_malloc( sizeof(lapack_complex_float) * ldx21_t * MAX(1,q) );
115  if( x21_t == NULL ) {
116  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
117  goto exit_level_2;
118  }
119  x22_t = (lapack_complex_float*)
120  LAPACKE_malloc( sizeof(lapack_complex_float) *
121  ldx22_t * MAX(1,m-q) );
122  if( x22_t == NULL ) {
123  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
124  goto exit_level_3;
125  }
126  /* Transpose input matrices */
127  LAPACKE_cge_trans( matrix_layout, nrows_x11, q, x11, ldx11, x11_t,
128  ldx11_t );
129  LAPACKE_cge_trans( matrix_layout, nrows_x12, m-q, x12, ldx12, x12_t,
130  ldx12_t );
131  LAPACKE_cge_trans( matrix_layout, nrows_x21, q, x21, ldx21, x21_t,
132  ldx21_t );
133  LAPACKE_cge_trans( matrix_layout, nrows_x22, m-q, x22, ldx22, x22_t,
134  ldx22_t );
135  /* Call LAPACK function and adjust info */
136  LAPACK_cunbdb( &trans, &signs, &m, &p, &q, x11_t, &ldx11_t, x12_t,
137  &ldx12_t, x21_t, &ldx21_t, x22_t, &ldx22_t, theta, phi,
138  taup1, taup2, tauq1, tauq2, work, &lwork, &info );
139  if( info < 0 ) {
140  info = info - 1;
141  }
142  /* Transpose output matrices */
143  LAPACKE_cge_trans( LAPACK_COL_MAJOR, nrows_x11, q, x11_t, ldx11_t, x11,
144  ldx11 );
145  LAPACKE_cge_trans( LAPACK_COL_MAJOR, nrows_x12, m-q, x12_t, ldx12_t,
146  x12, ldx12 );
147  LAPACKE_cge_trans( LAPACK_COL_MAJOR, nrows_x21, q, x21_t, ldx21_t, x21,
148  ldx21 );
149  LAPACKE_cge_trans( LAPACK_COL_MAJOR, nrows_x22, m-q, x22_t, ldx22_t,
150  x22, ldx22 );
151  /* Release memory and exit */
152  LAPACKE_free( x22_t );
153 exit_level_3:
154  LAPACKE_free( x21_t );
155 exit_level_2:
156  LAPACKE_free( x12_t );
157 exit_level_1:
158  LAPACKE_free( x11_t );
159 exit_level_0:
160  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
161  LAPACKE_xerbla( "LAPACKE_cunbdb_work", info );
162  }
163  } else {
164  info = -1;
165  LAPACKE_xerbla( "LAPACKE_cunbdb_work", info );
166  }
167  return info;
168 }
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:40
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
lapack_complex_float
#define lapack_complex_float
Definition: lapacke.h:74
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:47
LAPACKE_free
#define LAPACKE_free(p)
Definition: lapacke.h:113
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
LAPACKE_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
LAPACKE_xerbla
void LAPACKE_xerbla(const char *name, lapack_int info)
Definition: lapacke_xerbla.c:37
lapack_int
#define lapack_int
Definition: lapacke.h:47
LAPACK_TRANSPOSE_MEMORY_ERROR
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
LAPACK_cunbdb
void LAPACK_cunbdb(char *trans, char *signs, lapack_int *m, lapack_int *p, lapack_int *q, lapack_complex_float *x11, lapack_int *ldx11, lapack_complex_float *x12, lapack_int *ldx12, lapack_complex_float *x21, lapack_int *ldx21, lapack_complex_float *x22, lapack_int *ldx22, float *theta, float *phi, lapack_complex_float *taup1, lapack_complex_float *taup2, lapack_complex_float *tauq1, lapack_complex_float *tauq2, lapack_complex_float *work, lapack_int *lwork, lapack_int *info)

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