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rel.cpp
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1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Guido Tack <tack@gecode.org>
5 *
6 * Contributing authors:
7 * Gabor Szokoli <szokoli@gecode.org>
8 *
9 * Copyright:
10 * Guido Tack, 2004, 2005
11 *
12 * This file is part of Gecode, the generic constraint
13 * development environment:
14 * http://www.gecode.org
15 *
16 * Permission is hereby granted, free of charge, to any person obtaining
17 * a copy of this software and associated documentation files (the
18 * "Software"), to deal in the Software without restriction, including
19 * without limitation the rights to use, copy, modify, merge, publish,
20 * distribute, sublicense, and/or sell copies of the Software, and to
21 * permit persons to whom the Software is furnished to do so, subject to
22 * the following conditions:
23 *
24 * The above copyright notice and this permission notice shall be
25 * included in all copies or substantial portions of the Software.
26 *
27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
31 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
32 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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35 */
36
37#include <gecode/set/rel.hh>
38#include <gecode/set/rel-op.hh>
39#include <gecode/set/int.hh>
40
41namespace Gecode { namespace Set {
42
43 template<class View0, class View1>
44 forceinline void
45 rel_post(Home home, View0 x0, SetRelType r, View1 x1) {
46 using namespace Set::Rel;
47 using namespace Set::RelOp;
49 switch (r) {
50 case SRT_EQ:
52 break;
53 case SRT_NQ:
55 break;
56 case SRT_SUB:
58 break;
59 case SRT_SUP:
61 break;
62 case SRT_DISJ:
63 {
64 EmptyView emptyset;
66 ::post(home, x0, x1, emptyset)));
67 }
68 break;
69 case SRT_CMPL:
70 {
73 ::post(home, cx0, x1)));
74 }
75 break;
76 case SRT_LQ:
78 break;
79 case SRT_LE:
81 break;
82 case SRT_GQ:
84 break;
85 case SRT_GR:
87 break;
88 default:
89 throw UnknownRelation("Set::rel");
90 }
91 }
92
93 template<class View0, class View1, ReifyMode rm>
94 forceinline void
95 rel_re(Home home, View0 x, SetRelType r, View1 y, BoolVar b) {
96 using namespace Set::Rel;
97 using namespace Set::RelOp;
99 switch (r) {
100 case SRT_EQ:
102 ::post(home, x,y,b)));
103 break;
104 case SRT_NQ:
105 {
107 switch (rm) {
108 case RM_EQV:
110 ::post(home,x,y,notb)));
111 break;
112 case RM_IMP:
114 ::post(home,x,y,notb)));
115 break;
116 case RM_PMI:
118 ::post(home,x,y,notb)));
119 break;
120 default: throw Gecode::Int::UnknownReifyMode("Set::rel");
121 }
122 }
123 break;
124 case SRT_SUB:
126 break;
127 case SRT_SUP:
129 break;
130 case SRT_DISJ:
131 {
132 // x||y <=> b is equivalent to
133 // ( y <= complement(x) ) <=> b
134
138 ::post(home, y, xc, b)));
139 }
140 break;
141 case SRT_CMPL:
142 {
146 ::post(home, xc, y, b)));
147 }
148 break;
149 case SRT_LQ:
151 break;
152 case SRT_LE:
154 break;
155 case SRT_GQ:
157 break;
158 case SRT_GR:
160 break;
161 default:
162 throw UnknownRelation("Set::rel");
163 }
164 }
165
166}}
167
168namespace Gecode {
169
170 void
172 using namespace Set;
174 }
175
176 void
178 using namespace Set;
180 SingletonView xsingle(xv);
182 }
183
184 void
186 using namespace Set;
187 switch (r) {
188 case SRT_SUB:
189 rel(home, s, SRT_SUP, x);
190 break;
191 case SRT_SUP:
192 rel(home, s, SRT_SUB, x);
193 break;
194 default:
195 rel(home, s, r, x);
196 }
197 }
198
199 void
201 using namespace Set;
202 switch (r.mode()) {
203 case RM_EQV:
204 rel_re<SetView,SetView,RM_EQV>(home,x,rt,y,r.var());
205 break;
206 case RM_IMP:
207 rel_re<SetView,SetView,RM_IMP>(home,x,rt,y,r.var());
208 break;
209 case RM_PMI:
210 rel_re<SetView,SetView,RM_PMI>(home,x,rt,y,r.var());
211 break;
212 default: throw Gecode::Int::UnknownReifyMode("Set::rel");
213 }
214 }
215
216 void
218 using namespace Set;
220 SingletonView xsingle(xv);
221 switch (r.mode()) {
222 case RM_EQV:
223 rel_re<SetView,SingletonView,RM_EQV>(home,s,rt,xsingle,r.var());
224 break;
225 case RM_IMP:
226 rel_re<SetView,SingletonView,RM_IMP>(home,s,rt,xsingle,r.var());
227 break;
228 case RM_PMI:
229 rel_re<SetView,SingletonView,RM_PMI>(home,s,rt,xsingle,r.var());
230 break;
231 default: throw Gecode::Int::UnknownReifyMode("Set::rel");
232 }
233 }
234
235 void
237 using namespace Set;
238 switch (rt) {
239 case SRT_SUB:
240 rel(home, s, SRT_SUP, x, r);
241 break;
242 case SRT_SUP:
243 rel(home, s, SRT_SUB, x, r);
244 break;
245 default:
246 rel(home, s, rt, x, r);
247 }
248 }
249
250}
251
252// STATISTICS: set-post
struct Gecode::@603::NNF::@65::@66 b
For binary nodes (and, or, eqv)
Boolean integer variables.
Definition int.hh:512
Home class for posting propagators
Definition core.hpp:856
Integer variables.
Definition int.hh:371
Boolean view for Boolean variables.
Definition view.hpp:1380
Integer view for integer variables.
Definition view.hpp:129
Negated Boolean view.
Definition view.hpp:1574
Exception: Unknown reification mode passed as argument
Exception: Unknown relation passed as argument
Definition exception.hpp:87
Reification specification.
Definition int.hh:876
Set variables
Definition set.hh:127
Complement set view.
Definition view.hpp:769
Constant view for the empty set.
Definition view.hpp:336
Propagator for the superset of intersection
Definition rel-op.hh:63
Propagator for negated equality
Definition rel.hh:268
Propagator for set equality
Definition rel.hh:150
Propagator for set less than or equal
Definition rel.hh:208
Reified equality propagator
Definition rel.hh:174
Reified propagator for set less than or equal
Definition rel.hh:234
Reified subset propagator
Definition rel.hh:115
Propagator for the subset constraint
Definition rel.hh:65
Singleton set view.
Definition view.hpp:594
#define GECODE_POST
Check for failure in a constraint post function.
Definition macros.hpp:40
#define GECODE_ES_FAIL(es)
Check whether execution status es is failed, and fail space home.
Definition macros.hpp:103
void rel(Home home, FloatVar x0, FloatRelType frt, FloatVar x1)
Post propagator for .
Definition rel.cpp:68
@ RM_IMP
Implication for reification.
Definition int.hh:862
@ RM_PMI
Inverse implication for reification.
Definition int.hh:869
@ RM_EQV
Equivalence for reification (default)
Definition int.hh:855
SetRelType
Common relation types for sets.
Definition set.hh:643
@ SRT_GQ
Greater or equal ( )
Definition set.hh:652
@ SRT_CMPL
Complement.
Definition set.hh:649
@ SRT_GR
Greater ( )
Definition set.hh:653
@ SRT_LQ
Less or equal ( )
Definition set.hh:650
@ SRT_NQ
Disequality ( )
Definition set.hh:645
@ SRT_LE
Less ( )
Definition set.hh:651
@ SRT_EQ
Equality ( )
Definition set.hh:644
@ SRT_SUP
Superset ( )
Definition set.hh:647
@ SRT_DISJ
Disjoint ( )
Definition set.hh:648
@ SRT_SUB
Subset ( )
Definition set.hh:646
void rel_post(Home home, View0 x0, SetRelType r, View1 x1)
Definition rel.cpp:45
void rel_re(Home home, View0 x, SetRelType r, View1 y, BoolVar b)
Definition rel.cpp:95
Gecode toplevel namespace
Post propagator for SetVar SetOpType SetVar SetRelType r
Definition set.hh:767
Post propagator for SetVar SetOpType SetVar y
Definition set.hh:767
TFE post(PropagatorGroup g)
Only post functions (but not propagators) from g are considered.
Definition filter.cpp:138
Post propagator for SetVar x
Definition set.hh:767
#define forceinline
Definition config.hpp:187