Mercurial > sdl-ios-xcode
comparison include/SDL_byteorder.h @ 0:74212992fb08
Initial revision
author | Sam Lantinga <slouken@lokigames.com> |
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date | Thu, 26 Apr 2001 16:45:43 +0000 |
parents | |
children | cf2af46e9e2a |
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1 /* | |
2 SDL - Simple DirectMedia Layer | |
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga | |
4 | |
5 This library is free software; you can redistribute it and/or | |
6 modify it under the terms of the GNU Library General Public | |
7 License as published by the Free Software Foundation; either | |
8 version 2 of the License, or (at your option) any later version. | |
9 | |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 Library General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU Library General Public | |
16 License along with this library; if not, write to the Free | |
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | |
19 Sam Lantinga | |
20 slouken@devolution.com | |
21 */ | |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 /* Macros for determining the byte-order of this platform */ | |
29 | |
30 #ifndef _SDL_byteorder_h | |
31 #define _SDL_byteorder_h | |
32 | |
33 /* The two types of endianness */ | |
34 #define SDL_LIL_ENDIAN 1234 | |
35 #define SDL_BIG_ENDIAN 4321 | |
36 | |
37 /* Pardon the mess, I'm trying to determine the endianness of this host. | |
38 I'm doing it by preprocessor defines rather than some sort of configure | |
39 script so that application code can use this too. The "right" way would | |
40 be to dynamically generate this file on install, but that's a lot of work. | |
41 */ | |
42 #if defined(__i386__) || defined(WIN32) || \ | |
43 (defined(__alpha__) || defined(__alpha)) || \ | |
44 defined(__arm__) || \ | |
45 (defined(__mips__) && defined(__MIPSEL__)) | |
46 #define SDL_BYTEORDER SDL_LIL_ENDIAN | |
47 #else | |
48 #define SDL_BYTEORDER SDL_BIG_ENDIAN | |
49 #endif | |
50 | |
51 #endif /* _SDL_byteorder_h */ |