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RTOp_ROp_fraction_to_boundary.c
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43 
44 /* ///////////////////////////////////////////// */
45 /* RTOp_ROp_fraction_to_boundary.c */
46 
47 /* */
48 /* Note: This file was created automatically by 'new_rtop.pl' */
49 /* on 7/8/2002 at 18:22 */
50 /* */
51 
52 #define max(a,b) ( (a) > (b) ? (a) : (b) )
53 #define min(a,b) ( (a) < (b) ? (a) : (b) )
54 
56 #include "RTOp_obj_value_vtbl.h" /* vtbl for operator object instance data */
57 #include "RTOp_reduct_min_value.h" /* Reduction of intermediate reduction objects */
58 
59 
60 
61 /* Implementation functions for RTOp_RTOp */
62 
63 static int RTOp_ROp_fraction_to_boundary_apply_op(
64  const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
65  , const int num_vecs, const struct RTOp_SubVector vecs[]
66  , const int num_targ_vecs, const struct RTOp_MutableSubVector targ_vecs[]
67  , RTOp_ReductTarget reduct_obj )
68 {
69  /* */
70  /* Declare local variables */
71  /* */
72 
73  /* Access to the operator object instance data */
74  RTOp_value_type *tau = (RTOp_value_type*)obj_data;
75  /* Access to the reduction object data */
76  RTOp_value_type *alpha_max = (RTOp_value_type*)reduct_obj;
77  /* Vector data */
78  RTOp_index_type sub_dim;
79  /* v0 */
80  const RTOp_value_type *v0_val;
81  ptrdiff_t v0_val_s;
82  /* v1 */
83  const RTOp_value_type *v1_val;
84  ptrdiff_t v1_val_s;
85  /* v2 */
86  const RTOp_value_type *v2_val;
87  ptrdiff_t v2_val_s;
88  /* v3 */
89  const RTOp_value_type *v3_val;
90  ptrdiff_t v3_val_s;
91 
92  /* Automatic temporary variables */
93  register RTOp_index_type k;
94  /* Temporary element-wise reduction object */
95  RTOp_value_type alpha_max_ith;
96 
97  /* */
98  /* Validate the input */
99  /* */
100  if( num_vecs != 4 || ( num_vecs && vecs == NULL ) )
101  return RTOp_ERR_INVALID_NUM_VECS;
102  if( num_targ_vecs != 0 || ( num_targ_vecs && targ_vecs == NULL ) )
103  return RTOp_ERR_INVALID_NUM_TARG_VECS;
104  if( /* Validate sub_dim */
105  vecs[1].sub_dim != vecs[0].sub_dim
106  || vecs[2].sub_dim != vecs[0].sub_dim
107  || vecs[3].sub_dim != vecs[0].sub_dim
108  )
109  return RTOp_ERR_INCOMPATIBLE_VECS;
110  assert(obj_data);
111  assert(reduct_obj);
112 
113 
114  /* */
115  /* Get pointers to data */
116  /* */
117  sub_dim = vecs[0].sub_dim;
118  /* v0 */
119  v0_val = vecs[0].values;
120  v0_val_s = vecs[0].values_stride;
121  /* v1 */
122  v1_val = vecs[1].values;
123  v1_val_s = vecs[1].values_stride;
124  /* v2 */
125  v2_val = vecs[2].values;
126  v2_val_s = vecs[2].values_stride;
127  /* v3 */
128  v3_val = vecs[3].values;
129  v3_val_s = vecs[3].values_stride;
130 
131 
132  /* */
133  /* Apply the operator: */
134  /* */
135  for( k = 0; k < sub_dim; ++k, v0_val += v0_val_s, v1_val += v1_val_s, v2_val += v2_val_s, v3_val += v3_val_s )
136  {
137  /* Element-wise reduction */
138  if ((*v1_val) < 0)
139  { alpha_max_ith = (*tau)*((*v0_val)-(*v2_val))/(-(*v1_val)); }
140  else
141  { alpha_max_ith = (*tau)*((*v3_val)-(*v0_val))/((*v1_val)); }
142 
143  /* Reduction of intermediates */
144  (*alpha_max) = min( (*alpha_max), alpha_max_ith );
145  }
146 
147  return 0; /* success? */
148 }
149 
150 static int RTOp_ROp_fraction_to_boundary_reduct_obj_reinit(
151  const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
152  ,RTOp_ReductTarget reduct_obj
153  )
154 {
155  RTOp_value_type *alpha_max = (RTOp_value_type*)reduct_obj;
156  *alpha_max = 1.0;
157  return 0;
158 }
159 
160 /* Virtual function table */
161 const struct RTOp_RTOp_vtbl_t RTOp_ROp_fraction_to_boundary_vtbl =
162 {
163  &RTOp_obj_value_vtbl
164  ,&RTOp_obj_value_vtbl
165  ,"ROp_fraction_to_boundary"
166  ,RTOp_ROp_fraction_to_boundary_reduct_obj_reinit
167  ,RTOp_ROp_fraction_to_boundary_apply_op
168  ,RTOp_reduct_min_value
169  ,RTOp_get_reduct_min_value_op
170 };
171 
172 /* Class specific functions */
173 
174 int RTOp_ROp_fraction_to_boundary_construct( RTOp_value_type tau, struct RTOp_RTOp* op )
175 {
176 #ifdef RTOp_DEBUG
177  assert(op);
178 #endif
179  op->obj_data = NULL;
180  op->vtbl = &RTOp_ROp_fraction_to_boundary_vtbl;
181  op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
182  return RTOp_ROp_fraction_to_boundary_init(tau,op);
183 }
184 
185 int RTOp_ROp_fraction_to_boundary_destroy( struct RTOp_RTOp* op )
186 {
187  op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
188  op->obj_data = NULL;
189  op->vtbl = NULL;
190  return 0;
191 }
192 
193 int RTOp_ROp_fraction_to_boundary_init( RTOp_value_type tau, struct RTOp_RTOp* op )
194 {
195  RTOp_value_type *ptr_tau = (RTOp_value_type*)op->obj_data;
196  *ptr_tau = tau;
197  return 0;
198 }
199 RTOp_value_type RTOp_ROp_fraction_to_boundary_val(RTOp_ReductTarget reduct_obj)
200 {
201  return *((RTOp_value_type*)reduct_obj);
202 }
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