41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
// -*- coding: utf-8 -*-
|
|
// Copyright (C) 2011, 2015-2016 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/>.
|
|
|
|
#pragma once
|
|
|
|
// We usually write code like
|
|
// subclass* i = down_cast<subclass*>(m);
|
|
// assert(i);
|
|
// ... use i ...
|
|
// When NDEBUG is set, the down_cast is a fast static_cast
|
|
// and the assert has no effect.
|
|
// Otherwise, the down_cast is a dynamic_cast and may return 0
|
|
// on error, which the assert catches.
|
|
|
|
#if NDEBUG
|
|
# define down_cast static_cast
|
|
#else
|
|
# define down_cast dynamic_cast
|
|
#endif
|
|
|
|
#if NDEBUG
|
|
# define down_pointer_cast std::static_pointer_cast
|
|
#else
|
|
# define down_pointer_cast std::dynamic_pointer_cast
|
|
#endif
|