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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253/* -*- 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