/*
* This file is part of Deliantra, the Roguelike Realtime MMORPG.
*
* Copyright (©) 2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
*
* Deliantra is free software: you can redistribute it and/or modify it under
* the terms of the Affero GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program 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 Affero GNU General Public License
* and the GNU General Public License along with this program. If not, see
* .
*
* The authors can be reached via e-mail to
*/
#ifndef COMPILER_H
#define COMPILER_H
#if __GNUC__ >= 3
# define attribute(attrlist) __attribute__(attrlist)
#else
# define attribute(attrlist)
#endif
#if __GNUC__ >= 3
# define is_constant(c) __builtin_constant_p (c)
# define expect(expr,value) __builtin_expect ((expr),(value))
# define prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
# define noinline __attribute__((__noinline__))
#else
# define is_constant(c) 0
# define expect(expr,value) (expr)
# define prefetch(addr,rw,locality)
# define noinline
#endif
#if __GNUC__ < 4 || (__GNUC__ == 4 || __GNUC_MINOR__ < 4)
# define decltype(x) typeof(x)
#endif
// put into ifs if you are very sure that the expression
// is mostly true or mosty false. note that these return
// booleans, not the expression.
#define expect_false(expr) expect ((expr) ? 1 : 0, 0)
#define expect_true(expr) expect ((expr) ? 1 : 0, 1)
#endif