LAPACK  3.7.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_cgghd3_work()

lapack_int LAPACKE_cgghd3_work ( int  matrix_layout,
char  compq,
char  compz,
lapack_int  n,
lapack_int  ilo,
lapack_int  ihi,
lapack_complex_float a,
lapack_int  lda,
lapack_complex_float b,
lapack_int  ldb,
lapack_complex_float q,
lapack_int  ldq,
lapack_complex_float z,
lapack_int  ldz,
lapack_complex_float work,
lapack_int  lwork 
)

Definition at line 36 of file lapacke_cgghd3_work.c.

43 {
44  lapack_int info = 0;
45  if( matrix_layout == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_cgghd3( &compq, &compz, &n, &ilo, &ihi, a, &lda, b, &ldb, q,
48  &ldq, z, &ldz, work, &lwork, &info );
49  if( info < 0 ) {
50  info = info - 1;
51  }
52  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
53  lapack_int lda_t = MAX(1,n);
54  lapack_int ldb_t = MAX(1,n);
55  lapack_int ldq_t = MAX(1,n);
56  lapack_int ldz_t = MAX(1,n);
57  lapack_complex_float* a_t = NULL;
58  lapack_complex_float* b_t = NULL;
59  lapack_complex_float* q_t = NULL;
60  lapack_complex_float* z_t = NULL;
61  /* Query optimal working array(s) size if requested */
62  if( lwork == -1 ) {
63  LAPACK_cgghd3( &compq, &compz, &n, &ilo, &ihi, a, &lda, b, &ldb, q,
64  &ldq, z, &ldz, work, &lwork, &info );
65  return (info < 0) ? (info - 1) : info;
66  }
67  /* Check leading dimension(s) */
68  if( lda < n ) {
69  info = -8;
70  LAPACKE_xerbla( "LAPACKE_cgghd3_work", info );
71  return info;
72  }
73  if( ldb < n ) {
74  info = -10;
75  LAPACKE_xerbla( "LAPACKE_cgghd3_work", info );
76  return info;
77  }
78  if( ldq < n ) {
79  info = -12;
80  LAPACKE_xerbla( "LAPACKE_cgghd3_work", info );
81  return info;
82  }
83  if( ldz < n ) {
84  info = -14;
85  LAPACKE_xerbla( "LAPACKE_cgghd3_work", info );
86  return info;
87  }
88  /* Allocate memory for temporary array(s) */
89  a_t = (lapack_complex_float*)LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
90  if( a_t == NULL ) {
92  goto exit_level_0;
93  }
94  b_t = (lapack_complex_float*)LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,n) );
95  if( b_t == NULL ) {
97  goto exit_level_1;
98  }
99  if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
100  q_t = (lapack_complex_float*)LAPACKE_malloc( sizeof(lapack_complex_float) * ldq_t * MAX(1,n) );
101  if( q_t == NULL ) {
103  goto exit_level_2;
104  }
105  }
106  if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
107  z_t = (lapack_complex_float*)LAPACKE_malloc( sizeof(lapack_complex_float) * ldz_t * MAX(1,n) );
108  if( z_t == NULL ) {
110  goto exit_level_3;
111  }
112  }
113  /* Transpose input matrices */
114  LAPACKE_cge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
115  LAPACKE_cge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
116  if( LAPACKE_lsame( compq, 'v' ) ) {
117  LAPACKE_cge_trans( matrix_layout, n, n, q, ldq, q_t, ldq_t );
118  }
119  if( LAPACKE_lsame( compz, 'v' ) ) {
120  LAPACKE_cge_trans( matrix_layout, n, n, z, ldz, z_t, ldz_t );
121  }
122  /* Call LAPACK function and adjust info */
123  LAPACK_cgghd3( &compq, &compz, &n, &ilo, &ihi, a_t, &lda_t, b_t, &ldb_t,
124  q_t, &ldq_t, z_t, &ldz_t, work, &lwork, &info );
125  if( info < 0 ) {
126  info = info - 1;
127  }
128  /* Transpose output matrices */
129  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
130  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, b_t, ldb_t, b, ldb );
131  if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
132  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
133  }
134  if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
135  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
136  }
137  /* Release memory and exit */
138  if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
139  LAPACKE_free( z_t );
140  }
141  exit_level_3:
142  if( LAPACKE_lsame( compq, 'i' ) || LAPACKE_lsame( compq, 'v' ) ) {
143  LAPACKE_free( q_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_cgghd3_work", info );
152  }
153  } else {
154  info = -1;
155  LAPACKE_xerbla( "LAPACKE_cgghd3_work", info );
156  }
157  return info;
158 }
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_cgghd3(char *compq, char *compz, lapack_int *n, lapack_int *ilo, lapack_int *ihi, lapack_complex_float *a, lapack_int *lda, lapack_complex_float *b, lapack_int *ldb, lapack_complex_float *q, lapack_int *ldq, lapack_complex_float *z, lapack_int *ldz, lapack_complex_float *work, lapack_int *lwork, 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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