OpenTTD
endian_type.hpp
Go to the documentation of this file.
1 /*
2  * This file is part of OpenTTD.
3  * 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.
4  * 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.
5  * 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/>.
6  */
7 
10 #ifndef ENDIAN_TYPE_HPP
11 #define ENDIAN_TYPE_HPP
12 
13 #if defined(ARM) || defined(__arm__) || defined(__alpha__)
14 
15  #define OTTD_ALIGNMENT 1
16 #else
17 
18  #define OTTD_ALIGNMENT 0
19 #endif
20 
22 #define TTD_LITTLE_ENDIAN 0
23 
24 #define TTD_BIG_ENDIAN 1
25 
26 /* Windows has always LITTLE_ENDIAN */
27 #if defined(_WIN32) || defined(__OS2__) || defined(__HAIKU__)
28 # define TTD_ENDIAN TTD_LITTLE_ENDIAN
29 #elif defined(OSX)
30 # include <sys/types.h>
31 # if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN
32 # define TTD_ENDIAN TTD_LITTLE_ENDIAN
33 # else
34 # define TTD_ENDIAN TTD_BIG_ENDIAN
35 # endif
36 #elif !defined(TESTING)
37 # include <sys/param.h>
38 # if __BYTE_ORDER == __LITTLE_ENDIAN
39 # define TTD_ENDIAN TTD_LITTLE_ENDIAN
40 # else
41 # define TTD_ENDIAN TTD_BIG_ENDIAN
42 # endif
43 #endif /* _WIN32 || __OS2__ */
44 
45 #endif /* ENDIAN_TYPE_HPP */