distinct.hh

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Guido Tack <tack@gecode.org>
 *
 *  Copyright:
 *     Guido Tack, 2004
 *
 *  Last modified:
 *     $Date: 2009-10-12 17:36:53 +0200 (Mon, 12 Oct 2009) $ by $Author: schulte $
 *     $Revision: 9878 $
 *
 *  This file is part of Gecode, the generic constraint
 *  development environment:
 *     http://www.gecode.org
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 *  Permission is hereby granted, free of charge, to any person obtaining
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#ifndef __GECODE_SET_ATMOSTONE_HH__
#define __GECODE_SET_ATMOSTONE_HH__

#include <gecode/set.hh>

namespace Gecode { namespace Set { namespace Distinct {

  class AtmostOne : public NaryPropagator<SetView, PC_SET_ANY> {
  protected:
    unsigned int c;
    AtmostOne(Space& home, bool share,AtmostOne& p);
    AtmostOne(Home home,ViewArray<SetView>&,unsigned int);
  public:
    GECODE_SET_EXPORT virtual Actor*      copy(Space& home, bool);
    GECODE_SET_EXPORT virtual ExecStatus propagate(Space& home, const ModEventDelta& med);
    static ExecStatus post(Home home,ViewArray<SetView> x,unsigned int c);
  };

}}}

#include <gecode/set/distinct/atmostOne.hpp>

#endif

// STATISTICS: set-prop