circuit.hh

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     Christian Schulte, 2006
 *
 *  Last modified:
 *     $Date: 2016-08-26 11:14:49 +0200 (Fri, 26 Aug 2016) $ by $Author: schulte $
 *     $Revision: 15156 $
 *
 *  This file is part of Gecode, the generic constraint
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 *     http://www.gecode.org
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#ifndef __GECODE_INT_CIRCUIT_HH__
#define __GECODE_INT_CIRCUIT_HH__

#include <gecode/int.hh>
#include <gecode/int/distinct.hh>

namespace Gecode { namespace Int { namespace Circuit {

  template<class View, class Offset>
  class Base : public NaryPropagator<View,Int::PC_INT_DOM> {
  protected:
    using NaryPropagator<View,Int::PC_INT_DOM>::x;
    int start;
    ViewArray<View> y;
    Offset o;
    Base(Space& home, bool share, Base& p);
    Base(Home home, ViewArray<View>& x, Offset& o);
    ExecStatus connected(Space& home);
    ExecStatus path(Space& home);
  public:
    virtual size_t dispose(Space& home);
  };

  template<class View, class Offset>
  class Val : public Base<View,Offset> {
  protected:
    using Base<View,Offset>::x;
    using Base<View,Offset>::y;
    using Base<View,Offset>::connected;
    using Base<View,Offset>::path;
    using Base<View,Offset>::o;
    Val(Space& home, bool share, Val& p);
    Val(Home home, ViewArray<View>& x, Offset& o);
  public:
    virtual Actor* copy(Space& home, bool share);
    virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static  ExecStatus post(Home home, ViewArray<View>& x, Offset& o);
  };

  template<class View, class Offset>
  class Dom : public Base<View,Offset> {
  protected:
    using Base<View,Offset>::x;
    using Base<View,Offset>::y;
    using Base<View,Offset>::connected;
    using Base<View,Offset>::path;
    using Base<View,Offset>::o;
    Int::Distinct::DomCtrl<View> dc;
    Dom(Space& home, bool share, Dom& p);
    Dom(Home home, ViewArray<View>& x, Offset& o);
  public:
    virtual Actor* copy(Space& home, bool share);
    virtual PropCost cost(const Space& home, const ModEventDelta& med) const;
    virtual void reschedule(Space& home);
    virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static  ExecStatus post(Home home, ViewArray<View>& x, Offset& o);
  };

}}}

#include <gecode/int/circuit/base.hpp>
#include <gecode/int/circuit/val.hpp>
#include <gecode/int/circuit/dom.hpp>

#endif

// STATISTICS: int-prop