Jip J. Dekker
981be2067e
git-subtree-dir: software/gecode_on_replay git-subtree-split: 8051d92b9c89e49cccfbd1c201371580d7703ab4
122 lines
4.2 KiB
C++
122 lines
4.2 KiB
C++
/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Christian Schulte <schulte@gecode.org>
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*
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* Copyright:
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* Christian Schulte, 2011
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*
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* This file is part of Gecode, the generic constraint
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* development environment:
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* http://www.gecode.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef GECODE_INT_MEMBER_HH
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#define GECODE_INT_MEMBER_HH
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#include <gecode/int.hh>
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#include <gecode/int/val-set.hh>
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/**
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* \namespace Gecode::Int::Member
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* \brief Membership propagators
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*/
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namespace Gecode { namespace Int { namespace Member {
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/**
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* \brief Membership propagator
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*
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* Requires \code #include <gecode/int/member.hh> \endcode
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* \ingroup FuncIntProp
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*/
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template<class View>
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class Prop : public NaryOnePropagator<View,PC_INT_DOM> {
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protected:
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using NaryOnePropagator<View,PC_INT_DOM>::x;
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using NaryOnePropagator<View,PC_INT_DOM>::y;
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/// Value set storing the values of already assigned views
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ValSet vs;
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/// Add values of assigned views in \a x to value set \a va
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static void add(Space& home, ValSet& vs, ViewArray<View>& x);
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/// Eliminate views from \a x that are not equal to \a y or ar subsumed by \a vs
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void eliminate(Space& home);
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/// Constructor for posting
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Prop(Home home, ValSet& vs, ViewArray<View>& x, View y);
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/// Constructor for cloning \a p
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Prop(Space& home, Prop<View>& p);
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public:
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/// Cost function
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virtual PropCost cost(const Space&, const ModEventDelta& med) const;
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/// Copy propagator during cloning
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virtual Propagator* copy(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator for \f$y\in \{x_0,\ldots,x_{|x|-1}\}\f$
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static ExecStatus post(Home home, ViewArray<View>& x, View y);
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/// Post propagator for \f$y\in vs\cup \{x_0,\ldots,x_{|x|-1}\}\f$
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static ExecStatus post(Home home, ValSet& vs, ViewArray<View>& x, View y);
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/// Delete propagator and return its size
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virtual size_t dispose(Space& home);
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};
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/**
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* \brief Reified membership propagator
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*
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* Requires \code #include <gecode/int/member.hh> \endcode
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* \ingroup FuncIntProp
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*/
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template<class View, ReifyMode rm>
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class ReProp : public Prop<View> {
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protected:
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using Prop<View>::x;
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using Prop<View>::y;
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using Prop<View>::vs;
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using Prop<View>::add;
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using Prop<View>::eliminate;
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/// Boolean control variable
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BoolView b;
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/// Constructor for posting
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ReProp(Home home, ValSet& vs, ViewArray<View>& x, View y, BoolView b);
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/// Constructor for cloning \a p
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ReProp(Space& home, ReProp<View,rm>& p);
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public:
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/// Copy propagator during cloning
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virtual Propagator* copy(Space& home);
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/// Perform propagation
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virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
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/// Post propagator for \f$\left(y\in \{x_0,\ldots,x_{|x|-1}\}\right)\Leftrightarrow b\f$
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static ExecStatus post(Home home, ViewArray<View>& x, View y, BoolView b);
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/// Delete propagator and return its size
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virtual size_t dispose(Space& home);
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};
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}}}
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#include <gecode/int/member/prop.hpp>
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#include <gecode/int/member/re-prop.hpp>
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#endif
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// STATISTICS: int-prop
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