spot/src/ltlast/refformula.hh
Alexandre Duret-Lutz 000c041a95 * src/evtgba/evtgbaiter.hh, src/ltlast/formula.hh,
src/ltlast/refformula.hh, src/ltlenv/defaultenv.hh,
src/misc/bareword.hh, src/tgba/succiter.hh,
src/tgba/tgbabddfactory.hh, src/tgba/tgbareduc.hh,
src/tgbaalgos/dupexp.hh, src/tgbaalgos/emptiness_stats.hh,
src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/ltl2tgba_lacim.hh,
src/tgbaalgos/reductgba_sim.hh, src/tgbaalgos/tau03opt.hh: Add
or fix include guards.
* src/sanity/includes.test: Check the presence of the include
guard.
2005-01-03 10:20:26 +00:00

52 lines
1.5 KiB
C++

// Copyright (C) 2003, 2004, 2005 Laboratoire d'Informatique de Paris 6 (LIP6),
// département Systèmes Répartis Coopératifs (SRC), Université Pierre
// et Marie Curie.
//
// 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 2 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 Spot; see the file COPYING. If not, write to the Free
// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
/// \file ltlast/refformula.hh
/// \brief Reference-counted LTL formulae
#ifndef SPOT_LTLAST_REFFORMULA_HH
# define SPOT_LTLAST_REFFORMULA_HH
#include "formula.hh"
namespace spot
{
namespace ltl
{
/// \brief A reference-counted LTL formula.
/// \ingroup ltl_ast
class ref_formula : public formula
{
protected:
virtual ~ref_formula();
ref_formula();
void ref_();
bool unref_();
/// Number of references to this formula.
unsigned ref_count_();
private:
unsigned ref_counter_;
};
}
}
#endif // SPOT_LTLAST_REFFORMULA_HH