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/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file endian_type.hpp Definition of various endian-dependant macros. */
#ifndef ENDIAN_TYPE_HPP
#define ENDIAN_TYPE_HPP
#if defined(ARM) || defined(__arm__) || defined(__alpha__)
/** The architecture requires aligned access. */
#define OTTD_ALIGNMENT 1
#else
/** The architecture does not require aligned access. */
#define OTTD_ALIGNMENT 0
#endif
/** Little endian builds use this for TTD_ENDIAN. */
#define TTD_LITTLE_ENDIAN 0
/** Big endian builds use this for TTD_ENDIAN. */
#define TTD_BIG_ENDIAN 1
/* Windows has always LITTLE_ENDIAN */
#if defined(_WIN32) || defined(__OS2__) || defined(__HAIKU__)
# define TTD_ENDIAN TTD_LITTLE_ENDIAN
#elif defined(OSX)
# include <sys/types.h>
# if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN
# define TTD_ENDIAN TTD_LITTLE_ENDIAN
# else
# define TTD_ENDIAN TTD_BIG_ENDIAN
# endif
#elif defined(__OpenBSD__)
# include <endian.h>
# if BYTE_ORDER == LITTLE_ENDIAN
# define TTD_ENDIAN TTD_LITTLE_ENDIAN
# else
# define TTD_ENDIAN TTD_BIG_ENDIAN
# endif
#elif !defined(TESTING)
# include <sys/param.h>
# if __BYTE_ORDER == __LITTLE_ENDIAN
# define TTD_ENDIAN TTD_LITTLE_ENDIAN
# else
# define TTD_ENDIAN TTD_BIG_ENDIAN
# endif
#endif /* _WIN32 || __OS2__ */
#endif /* ENDIAN_TYPE_HPP */
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