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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- *//* * Main authors: * Christian Schulte <schulte@gecode.org> * * Copyright: * Christian Schulte, 2011 * * 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. * */
#ifndef GECODE_INT_MEMBER_HH#define GECODE_INT_MEMBER_HH
#include <gecode/int.hh>#include <gecode/int/val-set.hh>
/** * \namespace Gecode::Int::Member * \brief Membership propagators */
namespace Gecode { namespace Int { namespace Member {
/** * \brief Membership propagator * * Requires \code #include <gecode/int/member.hh> \endcode * \ingroup FuncIntProp */ template<class View> class Prop : public NaryOnePropagator<View,PC_INT_DOM> { protected: using NaryOnePropagator<View,PC_INT_DOM>::x; using NaryOnePropagator<View,PC_INT_DOM>::y; /// Value set storing the values of already assigned views ValSet vs; /// Add values of assigned views in \a x to value set \a va static void add(Space& home, ValSet& vs, ViewArray<View>& x); /// Eliminate views from \a x that are not equal to \a y or ar subsumed by \a vs void eliminate(Space& home); /// Constructor for posting Prop(Home home, ValSet& vs, ViewArray<View>& x, View y); /// Constructor for cloning \a p Prop(Space& home, Prop<View>& p); public: /// Cost function virtual PropCost cost(const Space&, const ModEventDelta& med) const; /// Copy propagator during cloning virtual Propagator* copy(Space& home); /// Perform propagation virtual ExecStatus propagate(Space& home, const ModEventDelta& med); /// Post propagator for \f$y\in \{x_0,\ldots,x_{|x|-1}\}\f$ static ExecStatus post(Home home, ViewArray<View>& x, View y); /// Post propagator for \f$y\in vs\cup \{x_0,\ldots,x_{|x|-1}\}\f$ static ExecStatus post(Home home, ValSet& vs, ViewArray<View>& x, View y); /// Delete propagator and return its size virtual size_t dispose(Space& home); };
/** * \brief Reified membership propagator * * Requires \code #include <gecode/int/member.hh> \endcode * \ingroup FuncIntProp */ template<class View, ReifyMode rm> class ReProp : public Prop<View> { protected: using Prop<View>::x; using Prop<View>::y; using Prop<View>::vs; using Prop<View>::add; using Prop<View>::eliminate; /// Boolean control variable BoolView b; /// Constructor for posting ReProp(Home home, ValSet& vs, ViewArray<View>& x, View y, BoolView b); /// Constructor for cloning \a p ReProp(Space& home, ReProp<View,rm>& p); public: /// Copy propagator during cloning virtual Propagator* copy(Space& home); /// Perform propagation virtual ExecStatus propagate(Space& home, const ModEventDelta& med); /// Post propagator for \f$\left(y\in \{x_0,\ldots,x_{|x|-1}\}\right)\Leftrightarrow b\f$ static ExecStatus post(Home home, ViewArray<View>& x, View y, BoolView b); /// Delete propagator and return its size virtual size_t dispose(Space& home); };
}}}
#include <gecode/int/member/prop.hpp>#include <gecode/int/member/re-prop.hpp>
#endif
// STATISTICS: int-prop