include/dlvhex2/AnswerSet.h

Go to the documentation of this file.

/* dlvhex -- Answer-Set Programming with external interfaces.
 * Copyright (C) 2005-2007 Roman Schindlauer
 * Copyright (C) 2006-2015 Thomas Krennwallner
 * Copyright (C) 2009-2016 Peter Schüller
 * Copyright (C) 2011-2016 Christoph Redl
 * Copyright (C) 2015-2016 Tobias Kaminski
 * Copyright (C) 2015-2016 Antonius Weinzierl
 *
 * This file is part of dlvhex.
 *
 * dlvhex is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * dlvhex is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with dlvhex; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

#ifndef ANSWER_SET_HPP_INCLUDED__09112010
#define ANSWER_SET_HPP_INCLUDED__09112010

#include "dlvhex2/PlatformDefinitions.h"
#include "dlvhex2/fwd.h"
#include "dlvhex2/Printhelpers.h"
#include "dlvhex2/Interpretation.h"

#include <boost/shared_ptr.hpp>

DLVHEX_NAMESPACE_BEGIN

class AnswerSet:
public ostream_printable<AnswerSet>
{
    public:
        // types
        typedef boost::shared_ptr<AnswerSet> Ptr;
        typedef boost::shared_ptr<const AnswerSet> ConstPtr;

        InterpretationPtr interpretation;
        std::vector<int> weightVector;

        // weight vector handling
        void computeWeightVector();
        std::vector<int>& getWeightVector();
        bool betterThan(std::vector<int>& cwv);
        bool strictlyBetterThan(std::vector<int>& cwv);
        std::ostream& printWeightVector(std::ostream& o) const;

        AnswerSet(RegistryPtr registry):
        interpretation(new Interpretation(registry)) {
            computeWeightVector();
        }

        AnswerSet(InterpretationPtr interpretation):
        interpretation(interpretation) {
            computeWeightVector();
        }

        virtual ~AnswerSet() {}

        virtual std::ostream& print(std::ostream& o) const;
};

typedef boost::shared_ptr<AnswerSet> AnswerSetPtr;

DLVHEX_NAMESPACE_END
#endif                           // ANSWER_SET_HPP_INCLUDED__09112010


// vim:expandtab:ts=4:sw=4:
// mode: C++
// End: