1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Guido Tack <tack@gecode.org>
*
* Contributing authors:
* Gabor Szokoli <szokoli@gecode.org>
*
* Copyright:
* Guido Tack, 2004, 2005
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <gecode/set/rel.hh>
#include <gecode/set/rel-op.hh>
#include <gecode/set/int.hh>
namespace Gecode { namespace Set {
template<class View0, class View1>
forceinline void
rel_post(Home home, View0 x0, SetRelType r, View1 x1) {
using namespace Set::Rel;
using namespace Set::RelOp;
GECODE_POST;
switch (r) {
case SRT_EQ:
GECODE_ES_FAIL((Eq<View0,View1>::post(home,x0,x1)));
break;
case SRT_NQ:
GECODE_ES_FAIL((Distinct<View0,View1>::post(home,x0,x1)));
break;
case SRT_SUB:
GECODE_ES_FAIL((Subset<View0,View1>::post(home, x0,x1)));
break;
case SRT_SUP:
GECODE_ES_FAIL((Subset<View1,View0>::post(home, x1,x0)));
break;
case SRT_DISJ:
{
EmptyView emptyset;
GECODE_ES_FAIL((SuperOfInter<View0,View1,EmptyView>
::post(home, x0, x1, emptyset)));
}
break;
case SRT_CMPL:
{
ComplementView<View0> cx0(x0);
GECODE_ES_FAIL((Eq<ComplementView<View0>, View1>
::post(home, cx0, x1)));
}
break;
case SRT_LQ:
GECODE_ES_FAIL((Lq<View0,View1,false>::post(home,x0,x1)));
break;
case SRT_LE:
GECODE_ES_FAIL((Lq<View0,View1,true>::post(home,x0,x1)));
break;
case SRT_GQ:
GECODE_ES_FAIL((Lq<View1,View0,false>::post(home,x1,x0)));
break;
case SRT_GR:
GECODE_ES_FAIL((Lq<View1,View0,true>::post(home,x1,x0)));
break;
default:
throw UnknownRelation("Set::rel");
}
}
template<class View0, class View1, ReifyMode rm>
forceinline void
rel_re(Home home, View0 x, SetRelType r, View1 y, BoolVar b) {
using namespace Set::Rel;
using namespace Set::RelOp;
GECODE_POST;
switch (r) {
case SRT_EQ:
GECODE_ES_FAIL((ReEq<View0,View1,Gecode::Int::BoolView,rm>
::post(home, x,y,b)));
break;
case SRT_NQ:
{
Gecode::Int::NegBoolView notb(b);
switch (rm) {
case RM_EQV:
GECODE_ES_FAIL((ReEq<View0,View1,Gecode::Int::NegBoolView,RM_EQV>
::post(home,x,y,notb)));
break;
case RM_IMP:
GECODE_ES_FAIL((ReEq<View0,View1,Gecode::Int::NegBoolView,RM_PMI>
::post(home,x,y,notb)));
break;
case RM_PMI:
GECODE_ES_FAIL((ReEq<View0,View1,Gecode::Int::NegBoolView,RM_IMP>
::post(home,x,y,notb)));
break;
default: throw Gecode::Int::UnknownReifyMode("Set::rel");
}
}
break;
case SRT_SUB:
GECODE_ES_FAIL((ReSubset<View0,View1,Gecode::Int::BoolView,rm>::post(home, x,y,b)));
break;
case SRT_SUP:
GECODE_ES_FAIL((ReSubset<View1,View0,Gecode::Int::BoolView,rm>::post(home, y,x,b)));
break;
case SRT_DISJ:
{
// x||y <=> b is equivalent to
// ( y <= complement(x) ) <=> b
ComplementView<View0> xc(x);
GECODE_ES_FAIL((ReSubset<View1,ComplementView<View0>,
Gecode::Int::BoolView,rm>
::post(home, y, xc, b)));
}
break;
case SRT_CMPL:
{
ComplementView<View0> xc(x);
GECODE_ES_FAIL((ReEq<ComplementView<View0>,View1,
Gecode::Int::BoolView,rm>
::post(home, xc, y, b)));
}
break;
case SRT_LQ:
GECODE_ES_FAIL((ReLq<View0,View1,rm,false>::post(home,x,y,b)));
break;
case SRT_LE:
GECODE_ES_FAIL((ReLq<View0,View1,rm,true>::post(home,x,y,b)));
break;
case SRT_GQ:
GECODE_ES_FAIL((ReLq<View1,View0,rm,false>::post(home,y,x,b)));
break;
case SRT_GR:
GECODE_ES_FAIL((ReLq<View1,View0,rm,true>::post(home,y,x,b)));
break;
default:
throw UnknownRelation("Set::rel");
}
}
}}
namespace Gecode {
void
rel(Home home, SetVar x, SetRelType r, SetVar y) {
using namespace Set;
rel_post<SetView,SetView>(home,x,r,y);
}
void
rel(Home home, SetVar s, SetRelType r, IntVar x) {
using namespace Set;
Gecode::Int::IntView xv(x);
SingletonView xsingle(xv);
rel_post<SetView,SingletonView>(home,s,r,xv);
}
void
rel(Home home, IntVar x, SetRelType r, SetVar s) {
using namespace Set;
switch (r) {
case SRT_SUB:
rel(home, s, SRT_SUP, x);
break;
case SRT_SUP:
rel(home, s, SRT_SUB, x);
break;
default:
rel(home, s, r, x);
}
}
void
rel(Home home, SetVar x, SetRelType rt, SetVar y, Reify r) {
using namespace Set;
switch (r.mode()) {
case RM_EQV:
rel_re<SetView,SetView,RM_EQV>(home,x,rt,y,r.var());
break;
case RM_IMP:
rel_re<SetView,SetView,RM_IMP>(home,x,rt,y,r.var());
break;
case RM_PMI:
rel_re<SetView,SetView,RM_PMI>(home,x,rt,y,r.var());
break;
default: throw Gecode::Int::UnknownReifyMode("Set::rel");
}
}
void
rel(Home home, SetVar s, SetRelType rt, IntVar x, Reify r) {
using namespace Set;
Gecode::Int::IntView xv(x);
SingletonView xsingle(xv);
switch (r.mode()) {
case RM_EQV:
rel_re<SetView,SingletonView,RM_EQV>(home,s,rt,xsingle,r.var());
break;
case RM_IMP:
rel_re<SetView,SingletonView,RM_IMP>(home,s,rt,xsingle,r.var());
break;
case RM_PMI:
rel_re<SetView,SingletonView,RM_PMI>(home,s,rt,xsingle,r.var());
break;
default: throw Gecode::Int::UnknownReifyMode("Set::rel");
}
}
void
rel(Home home, IntVar x, SetRelType rt, SetVar s, Reify r) {
using namespace Set;
switch (rt) {
case SRT_SUB:
rel(home, s, SRT_SUP, x, r);
break;
case SRT_SUP:
rel(home, s, SRT_SUB, x, r);
break;
default:
rel(home, s, rt, x, r);
}
}
}
// STATISTICS: set-post
|
