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RTOp_TOp_inv_of_difference.c
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5 // Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
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43 
44 /* */
45 /* Note: This file was created automatically by 'new_rtop.pl' */
46 /* on 6/27/2002 at 20:41 */
47 /* */
48 
49 #define max(a,b) ( (a) > (b) ? (a) : (b) )
50 #define min(a,b) ( (a) < (b) ? (a) : (b) )
51 
53 #include "RTOp_obj_value_vtbl.h" /* vtbl for operator object instance data */
54 
55 
56 
57 /* Implementation functions for RTOp_RTOp */
58 
59 static int RTOp_TOp_inv_of_difference_apply_op(
60  const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
61  , const int num_vecs, const struct RTOp_SubVector vecs[]
62  , const int num_targ_vecs, const struct RTOp_MutableSubVector targ_vecs[]
63  , RTOp_ReductTarget reduct_obj )
64 {
65  /* */
66  /* Declare local variables */
67  /* */
68 
69  /* Access to the operator object instance data */
70  RTOp_value_type *alpha = (RTOp_value_type*)obj_data;
71  /* Vector data */
72  RTOp_index_type sub_dim;
73  /* z0 */
74  RTOp_value_type *z0_val;
75  ptrdiff_t z0_val_s;
76  /* v0 */
77  const RTOp_value_type *v0_val;
78  ptrdiff_t v0_val_s;
79  /* v1 */
80  const RTOp_value_type *v1_val;
81  ptrdiff_t v1_val_s;
82 
83  register RTOp_index_type k;
84 
85  /* */
86  /* Validate the input */
87  /* */
88  if( num_vecs != 2 || ( num_vecs && vecs == NULL ) )
89  return RTOp_ERR_INVALID_NUM_VECS;
90  if( num_targ_vecs != 1 || ( num_targ_vecs && targ_vecs == NULL ) )
91  return RTOp_ERR_INVALID_NUM_TARG_VECS;
92  if( /* Validate sub_dim */
93  vecs[1].sub_dim != vecs[0].sub_dim
94  || targ_vecs[0].sub_dim != vecs[0].sub_dim
95  )
96  return RTOp_ERR_INCOMPATIBLE_VECS;
97  assert(obj_data);
98 
99 
100  /* */
101  /* Get pointers to data */
102  /* */
103  sub_dim = vecs[0].sub_dim;
104  /* z0 */
105  z0_val = targ_vecs[0].values;
106  z0_val_s = targ_vecs[0].values_stride;
107  /* v0 */
108  v0_val = vecs[0].values;
109  v0_val_s = vecs[0].values_stride;
110  /* v1 */
111  v1_val = vecs[1].values;
112  v1_val_s = vecs[1].values_stride;
113 
114 
115  /* */
116  /* Apply the operator: */
117  /* */
118  /* element-wise transformation : z0 = alpha/(v0-v1); */
119  /* */
120  for( k = 0; k < sub_dim; ++k, v0_val += v0_val_s, v1_val += v1_val_s, z0_val += z0_val_s )
121  {
122  /* Element-wise transformation */
123 /* if (fabs((*v0_val)-(*v1_val)) > 5.562685e-309) */
124  { (*z0_val) = (*alpha)/((*v0_val)-(*v1_val)); }
125 /* else */
126 /* { (*z0_val) = 1.797693e+308; } */
127  }
128 
129  return 0; /* success? */
130 }
131 
132 /* Virtual function table */
133 const struct RTOp_RTOp_vtbl_t RTOp_TOp_inv_of_difference_vtbl =
134 {
135  &RTOp_obj_value_vtbl
136  ,&RTOp_obj_null_vtbl
137  ,"TOp_inv_of_difference"
138  ,NULL
139  ,RTOp_TOp_inv_of_difference_apply_op
140  ,NULL
141  ,NULL
142 };
143 
144 /* Class specific functions */
145 
146 int RTOp_TOp_inv_of_difference_construct( RTOp_value_type alpha, struct RTOp_RTOp* op )
147 {
148 #ifdef RTOp_DEBUG
149  assert(op);
150 #endif
151  op->obj_data = NULL;
152  op->vtbl = &RTOp_TOp_inv_of_difference_vtbl;
153  op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
154  return RTOp_TOp_inv_of_difference_init(alpha,op);
155 }
156 
157 int RTOp_TOp_inv_of_difference_destroy( struct RTOp_RTOp* op )
158 {
159  op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
160  op->obj_data = NULL;
161  op->vtbl = NULL;
162  return 0;
163 }
164 
165 int RTOp_TOp_inv_of_difference_init( RTOp_value_type alpha, struct RTOp_RTOp* op )
166 {
167  RTOp_value_type *ptr_alpha = (RTOp_value_type*)op->obj_data;
168  *ptr_alpha = alpha;
169  return 0;
170 }
171 
int(* obj_create)(const struct RTOp_obj_type_vtbl_t *vtbl, const void *instance_data, void **obj)
Definition: RTOp.h:941
int(* obj_free)(const struct RTOp_obj_type_vtbl_t *vtbl, const void *instance_data, void **obj)
Definition: RTOp.h:1019