spot
0.8.2
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00001 // Copyright (C) 2011 Laboratoire de Recherche et Développement 00002 // de l'Epita (LRDE). 00003 // 00004 // This file is part of Spot, a model checking library. 00005 // 00006 // Spot is free software; you can redistribute it and/or modify it 00007 // under the terms of the GNU General Public License as published by 00008 // the Free Software Foundation; either version 2 of the License, or 00009 // (at your option) any later version. 00010 // 00011 // Spot is distributed in the hope that it will be useful, but WITHOUT 00012 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 00013 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 00014 // License for more details. 00015 // 00016 // You should have received a copy of the GNU General Public License 00017 // along with Spot; see the file COPYING. If not, write to the Free 00018 // Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 00019 // 02111-1307, USA. 00020 00021 #ifndef SPOT_MISC_CASTS_HH 00022 # define SPOT_MISC_CASTS_HH 00023 00024 00025 // We usually write code like 00026 // subclass* i = down_cast<subclass*>(m); 00027 // assert(i); 00028 // ... use i ... 00029 // When NDEBUG is set, the down_cast is a fast static_cast 00030 // and the assert has no effect. 00031 // Otherwise, the down_cast is a dynamic_cast and may return 0 00032 // on error, which the assert catches. 00033 00034 #if NDEBUG 00035 # define down_cast static_cast 00036 #else 00037 # define down_cast dynamic_cast 00038 #endif 00039 00040 #endif // SPOT_MISC_CASTS_HH