// -*- coding: utf-8 -*-
// Copyright (C) 2014 Laboratoire de Recherche et
// Développement de l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// Spot 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 General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

#ifndef SPOT_TGBAALGOS_PRODUCT_HH
# define SPOT_TGBAALGOS_PRODUCT_HH

#include "misc/common.hh"
#include "tgba/fwd.hh"
#include <vector>
#include <utility>

namespace spot
{
  // The tgba constructed by product() below contain property named
  // "product-states" with type product_states.
  typedef std::vector<std::pair<unsigned, unsigned>> product_states;

  SPOT_API
  tgba_digraph_ptr product(const const_tgba_digraph_ptr& left,
			   const const_tgba_digraph_ptr& right);

  SPOT_API
  tgba_digraph_ptr product(const const_tgba_digraph_ptr& left,
			   const const_tgba_digraph_ptr& right,
			   unsigned left_state,
			   unsigned right_state);
}

#endif // SPOT_TGBAALGOS_PRODUCT_HH
