00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00022
00023
00024
00025
00026
00027
00028
00029
00030
00031
00032
00033
00034
00035
00036
00037
00038
00039
00040 #include <gecode/set.hh>
00041
00042 #include <gecode/set/int.hh>
00043 #include <gecode/set/rel.hh>
00044
00045 namespace Gecode {
00046
00047 void
00048 rel(Home home, SetVar s, IntRelType rt, IntVar x) {
00049 GECODE_POST;
00050 switch (rt) {
00051 case IRT_EQ:
00052 {
00053 Gecode::Int::IntView xv(x);
00054 Set::SingletonView xsingle(xv);
00055 GECODE_ES_FAIL(
00056 (Set::Rel::Eq<Set::SetView,Set::SingletonView>
00057 ::post(home,s,xsingle)));
00058
00059 }
00060 break;
00061 case IRT_NQ:
00062 {
00063 Gecode::Set::SetView sv(s);
00064 GECODE_ME_FAIL( sv.cardMin(home, 1));
00065 Gecode::Int::IntView xv(x);
00066 Set::SingletonView xsingle(xv);
00067 GECODE_ES_FAIL(
00068 (Set::Rel::NoSubset<Set::SingletonView,Set::SetView>
00069 ::post(home,xsingle,sv)));
00070
00071 }
00072 break;
00073 case IRT_LQ:
00074 {
00075 IntVar tmp(home, Int::Limits::min, Int::Limits::max);
00076 rel(home, tmp, IRT_LQ, x);
00077 GECODE_ES_FAIL(Set::Int::MaxElement<Set::SetView>::post(home,s,tmp));
00078 }
00079 break;
00080 case IRT_LE:
00081 {
00082 IntVar tmp(home, Int::Limits::min, Int::Limits::max);
00083 rel(home, tmp, IRT_LE, x);
00084 GECODE_ES_FAIL(Set::Int::MaxElement<Set::SetView>::post(home,s,tmp));
00085 }
00086 break;
00087 case IRT_GQ:
00088 {
00089 IntVar tmp(home, Int::Limits::min, Int::Limits::max);
00090 rel(home, tmp, IRT_GQ, x);
00091 GECODE_ES_FAIL(Set::Int::MinElement<Set::SetView>::post(home,s,tmp));
00092 }
00093 break;
00094 case IRT_GR:
00095 {
00096 IntVar tmp(home, Int::Limits::min, Int::Limits::max);
00097 rel(home, tmp, IRT_GR, x);
00098 GECODE_ES_FAIL(Set::Int::MinElement<Set::SetView>::post(home,s,tmp));
00099 }
00100 break;
00101 default:
00102 throw Int::UnknownRelation("Set::rel");
00103 }
00104
00105 }
00106
00107 }
00108
00109 namespace Gecode { namespace Set { namespace Int {
00110
00112 void remin(Home home, SetVar s, IntVar m, Reify r) {
00113 IntVar c(home, 0, static_cast<int>(Set::Limits::card));
00114 cardinality(home, s, c);
00115
00116 BoolVar ne(home, 0, 1);
00117 rel(home, c, IRT_GR, 0, ne);
00118 if (r.mode() != RM_PMI)
00119 rel(home, r.var(), BOT_IMP, ne, 1);
00120 min(home, s, m, ne);
00121 }
00122
00124 void remax(Home home, SetVar s, IntVar m, Reify r) {
00125 IntVar c(home, 0, static_cast<int>(Set::Limits::card));
00126 cardinality(home, s, c);
00127
00128 BoolVar ne(home, 0, 1);
00129 rel(home, c, IRT_GR, 0, ne);
00130 if (r.mode() != RM_PMI)
00131 rel(home, r.var(), BOT_IMP, ne, 1);
00132 max(home, s, m, ne);
00133 }
00134
00135 }}}
00136
00137 namespace Gecode {
00138
00139 void
00140 rel(Home home, SetVar s, IntRelType rt, IntVar x, Reify r) {
00141 GECODE_POST;
00142 switch (rt) {
00143 case IRT_EQ:
00144 {
00145 Gecode::Int::IntView xv(x);
00146 Set::SingletonView xs(xv);
00147 switch (r.mode()) {
00148 case RM_EQV:
00149 GECODE_ES_FAIL((Set::Rel::ReEq<Set::SetView,Set::SingletonView,
00150 Gecode::Int::BoolView,RM_EQV>
00151 ::post(home,s,xs,r.var())));
00152 break;
00153 case RM_IMP:
00154 GECODE_ES_FAIL((Set::Rel::ReEq<Set::SetView,Set::SingletonView,
00155 Gecode::Int::BoolView,RM_IMP>
00156 ::post(home,s,xs,r.var())));
00157 break;
00158 case RM_PMI:
00159 GECODE_ES_FAIL((Set::Rel::ReEq<Set::SetView,Set::SingletonView,
00160 Gecode::Int::BoolView,RM_PMI>
00161 ::post(home,s,xs,r.var())));
00162 break;
00163 default:
00164 throw Gecode::Int::UnknownReifyMode("Set::rel");
00165 }
00166 }
00167 break;
00168 case IRT_NQ:
00169 {
00170 IntVar c(home, 0, static_cast<int>(Set::Limits::card));
00171 cardinality(home, s, c);
00172
00173 BoolVar ne(home, 0 , 1);
00174 rel(home, c, IRT_GR, 0, ne);
00175
00176 BoolVar ss(home, 0 , 1);
00177 rel(home, x, SRT_SUB, s, ss);
00178 BoolVar b;
00179 switch (r.mode()) {
00180 case RM_EQV:
00181 b=r.var();
00182 break;
00183 case RM_IMP:
00184 b=BoolVar(home, 0, 1);
00185 rel(home, r.var(), BOT_IMP, b, 1);
00186 break;
00187 case RM_PMI:
00188 b=BoolVar(home, 0, 1);
00189 rel(home, b, BOT_IMP, r.var(), 1);
00190 break;
00191 default:
00192 throw Gecode::Int::UnknownReifyMode("Set::rel");
00193 }
00194 BoolVarArgs p(1); p[0]=ne;
00195 BoolVarArgs n(1); n[0]=ss;
00196 clause(home, BOT_AND, p, n, b);
00197 }
00198 break;
00199 case IRT_LQ:
00200 {
00201 IntVar tmp(home, Int::Limits::min, Int::Limits::max);
00202 rel(home, tmp, IRT_LQ, x, r);
00203 Gecode::Set::Int::remax(home, s, tmp, r);
00204 }
00205 break;
00206 case IRT_LE:
00207 {
00208 IntVar tmp(home, Int::Limits::min, Int::Limits::max);
00209 rel(home, tmp, IRT_LE, x, r);
00210 Gecode::Set::Int::remax(home, s, tmp, r);
00211 }
00212 break;
00213 case IRT_GQ:
00214 {
00215 IntVar tmp(home, Int::Limits::min, Int::Limits::max);
00216 rel(home, tmp, IRT_GQ, x, r);
00217 Gecode::Set::Int::remin(home, s, tmp, r);
00218 }
00219 break;
00220 case IRT_GR:
00221 {
00222 IntVar tmp(home, Int::Limits::min, Int::Limits::max);
00223 rel(home, tmp, IRT_GR, x, r);
00224 Gecode::Set::Int::remin(home, s, tmp, r);
00225 }
00226 break;
00227 default:
00228 throw Int::UnknownRelation("Set::rel");
00229 }
00230 }
00231
00232 void
00233 min(Home home, SetVar s, IntVar x){
00234 GECODE_POST;
00235 GECODE_ES_FAIL(Set::Int::MinElement<Set::SetView>::post(home,s,x));
00236 }
00237
00238 void
00239 notMin(Home home, SetVar s, IntVar x){
00240 GECODE_POST;
00241 GECODE_ES_FAIL(Set::Int::NotMinElement<Set::SetView>::post(home,s,x));
00242 }
00243
00244 void
00245 min(Home home, SetVar s, IntVar x, Reify r){
00246 GECODE_POST;
00247 switch (r.mode()) {
00248 case RM_EQV:
00249 GECODE_ES_FAIL((Set::Int::ReMinElement<Set::SetView,RM_EQV>
00250 ::post(home,s,x,r.var())));
00251 break;
00252 case RM_IMP:
00253 GECODE_ES_FAIL((Set::Int::ReMinElement<Set::SetView,RM_IMP>
00254 ::post(home,s,x,r.var())));
00255 break;
00256 case RM_PMI:
00257 GECODE_ES_FAIL((Set::Int::ReMinElement<Set::SetView,RM_PMI>
00258 ::post(home,s,x,r.var())));
00259 break;
00260 default: throw Gecode::Int::UnknownReifyMode("Set::min");
00261 }
00262 }
00263
00264 void
00265 max(Home home, SetVar s, IntVar x){
00266 GECODE_POST;
00267 GECODE_ES_FAIL(Set::Int::MaxElement<Set::SetView>::post(home,s,x));
00268 }
00269
00270 void
00271 notMax(Home home, SetVar s, IntVar x){
00272 GECODE_POST;
00273 GECODE_ES_FAIL(Set::Int::NotMaxElement<Set::SetView>::post(home,s,x));
00274 }
00275
00276 void
00277 max(Home home, SetVar s, IntVar x, Reify r){
00278 GECODE_POST;
00279 switch (r.mode()) {
00280 case RM_EQV:
00281 GECODE_ES_FAIL((Set::Int::ReMaxElement<Set::SetView,RM_EQV>
00282 ::post(home,s,x,r.var())));
00283 break;
00284 case RM_IMP:
00285 GECODE_ES_FAIL((Set::Int::ReMaxElement<Set::SetView,RM_IMP>
00286 ::post(home,s,x,r.var())));
00287 break;
00288 case RM_PMI:
00289 GECODE_ES_FAIL((Set::Int::ReMaxElement<Set::SetView,RM_PMI>
00290 ::post(home,s,x,r.var())));
00291 break;
00292 default: throw Gecode::Int::UnknownReifyMode("Set::max");
00293 }
00294 }
00295
00296 void weights(Home home, IntSharedArray elements, IntSharedArray weights,
00297 SetVar x, IntVar y) {
00298 GECODE_POST;
00299 GECODE_ES_FAIL(Set::Int::Weights<Set::SetView>::post(home,elements,
00300 weights,x,y));
00301 }
00302
00303 }
00304
00305