distinct.cpp

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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: 2010-03-03 17:40:32 +0100 (Wed, 03 Mar 2010) $ by $Author: schulte $
 *     $Revision: 10365 $
 *
 *  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
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 *  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.
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 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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 */

#include <gecode/set/distinct.hh>

using namespace Gecode::Set;

namespace Gecode {

  void
  atmostOne(Home home, const SetVarArgs& xa, unsigned int c) {
    Set::Limits::check(c, "Set::atmostOne");
    if (home.failed()) return;
    if (xa.size() < 2)
      return;
    ViewArray<SetView> x(home,xa);
    GECODE_ES_FAIL(Distinct::AtmostOne::post(home, x, c));
  }

}

// STATISTICS: set-post