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at develop
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- *//* * Main authors: * Christian Schulte <schulte@gecode.org> * * Copyright: * Christian Schulte, 2003 * * 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 <climits>
namespace Gecode { namespace Int { namespace Distinct {
template<class View> forceinline Dom<View>::Dom(Home home, ViewArray<View>& x) : NaryPropagator<View,PC_INT_DOM>(home,x) {}
template<class View> ExecStatus Dom<View>::post(Home home, ViewArray<View>& x) { if (x.size() == 2) return Rel::Nq<View,View>::post(home,x[0],x[1]); if (x.size() == 3) return TerDom<View>::post(home,x[0],x[1],x[2]); if (x.size() > 3) { // Do bounds propagation to make view-value graph smaller GECODE_ES_CHECK(prop_bnd<View>(home,x)); (void) new (home) Dom<View>(home,x); } return ES_OK; }
template<class View> forceinline Dom<View>::Dom(Space& home, Dom<View>& p) : NaryPropagator<View,PC_INT_DOM>(home,p) {}
template<class View> PropCost Dom<View>::cost(const Space&, const ModEventDelta& med) const { if (View::me(med) == ME_INT_VAL) return PropCost::linear(PropCost::LO, x.size()); else return PropCost::quadratic(PropCost::HI, x.size()); }
template<class View> Actor* Dom<View>::copy(Space& home) { return new (home) Dom<View>(home,*this); }
#ifdef GECODE_HAS_CBS template<class View> void Dom<View>::solndistrib(Space& home, Propagator::SendMarginal send) const { cbsdistinct(home,this->id(),x,send); }
template<class View> void Dom<View>::domainsizesum(Propagator::InDecision in, unsigned int& size, unsigned int& size_b) const { cbssize(x,in,size,size_b); }#endif
template<class View> ExecStatus Dom<View>::propagate(Space& home, const ModEventDelta& med) { if (View::me(med) == ME_INT_VAL) { ExecStatus es = prop_val<View,false>(home,x); GECODE_ES_CHECK(es); if (x.size() < 2) return home.ES_SUBSUMED(*this); if (es == ES_FIX) return home.ES_FIX_PARTIAL(*this,View::med(ME_INT_DOM)); es = prop_bnd<View>(home,x); GECODE_ES_CHECK(es); if (x.size() < 2) return home.ES_SUBSUMED(*this); es = prop_val<View,true>(home,x); GECODE_ES_CHECK(es); if (x.size() < 2) return home.ES_SUBSUMED(*this); return home.ES_FIX_PARTIAL(*this,View::med(ME_INT_DOM)); }
if (x.size() == 2) GECODE_REWRITE(*this,(Rel::Nq<View,View>::post(home(*this),x[0],x[1]))); if (x.size() == 3) GECODE_REWRITE(*this,TerDom<View>::post(home(*this),x[0],x[1],x[2]));
if (dc.available()) { GECODE_ES_CHECK(dc.sync()); } else { GECODE_ES_CHECK(dc.init(home,x)); }
bool assigned; GECODE_ES_CHECK(dc.propagate(home,assigned));
return ES_FIX; }
}}}
// STATISTICS: int-prop