cardinality.cc

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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
 *  Main authors:
 *     Gabor Szokoli <szokoli@gecode.org>
 *     Guido Tack <tack@gecode.org>
 *     Christian Schulte <schulte@gecode.org>
 *
 *  Copyright:
 *     Gabor Szokoli, 2004
 *     Guido Tack, 2004
 *     Christian Schulte, 2004
 *
 *  Last modified:
 *     $Date: 2008-02-28 14:12:40 +0100 (Thu, 28 Feb 2008) $ by $Author: tack $
 *     $Revision: 6344 $
 *
 *  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,
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 *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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 */

#include "gecode/set.hh"
#include "gecode/set/int.hh"

namespace Gecode {

  void
  cardinality(Space* home, SetVar x, unsigned int i, unsigned int j) {
    Set::Limits::check(i, "Set::cardinality");
    Set::Limits::check(j, "Set::cardinality");
    if (home->failed()) return;
    Set::SetView _x(x);
    GECODE_ME_FAIL(home,_x.cardMin(home, i));
    GECODE_ME_FAIL(home,_x.cardMax(home, j));
  }

  void
  cardinality(Space* home, SetVar s, IntVar x) {
    if (home->failed()) return;
    GECODE_ES_FAIL(home,Set::Int::Card<Set::SetView>::post(home,s, x));
  }

}

// STATISTICS: set-post