bddlt.hh

// -*- coding: utf-8 -*-
// Copyright (C) by the Spot authors, see the AUTHORS file for details.
//
// 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/>.
 
#pragma once
 
#include <bddx.h>
#include <functional>
 
namespace spot
{
  struct bdd_less_than
  {
    bool
    operator()(const bdd& left, const bdd& right) const
    {
      return left.id() < right.id();
    }
  };

  struct bdd_less_than_stable
  {
    bool
    operator()(const bdd& left, const bdd& right) const
    {
      return bdd_stable_cmp(left, right) < 0;
    }
  };

  struct bdd_hash
  {
    size_t
    operator()(const bdd& b) const noexcept
    {
      return b.id();
    }
  };
}