You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
/* $Id$ */
|
|
|
|
/*
|
|
* 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__)
|
|
# 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(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 */
|