1 /* 2 * attributes.h 3 * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org> 4 * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca> 5 * 6 * This file is part of mpeg2dec, a free MPEG-2 video stream decoder. 7 * See http://libmpeg2.sourceforge.net/ for updates. 8 * 9 * mpeg2dec is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * mpeg2dec is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 */ 23 24 /* use gcc attribs to align critical data structures */ 25 #include <xine/attributes.h> 26 27 #ifdef HAVE_BUILTIN_EXPECT 28 #define likely(x) __builtin_expect ((x) != 0, 1) 29 #define unlikely(x) __builtin_expect ((x) != 0, 0) 30 #else 31 #define likely(x) (x) 32 #define unlikely(x) (x) 33 #endif 34