00001 /* 00002 * Copyright (C) 2008 Helmut Grohne 00003 * 00004 * This program is free software; you can redistribute it and/or modify 00005 * it under the terms of the GNU General Public License as published by 00006 * the Free Software Foundation; either version 2 of the License, or 00007 * (at your option) any later version. 00008 * 00009 * This program is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 * GNU General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU General Public License 00015 * along with this program; if not, write to the Free Software 00016 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00017 */ 00018 #ifndef LIBMUTH_COMPILER_H 00019 #define LIBMUTH_COMPILER_H 00020 00021 #if defined(__GNUC__) && __GNUC__ >= 3 00022 #define likely(x) __builtin_expect(!!(x), 1) 00023 #define unlikely(x) __builtin_expect(!!(x), 0) 00024 #else 00025 #define likely(x) x 00026 #define unlikely(x) x 00027 #endif 00028 00029 #endif
1.5.1