Mercurial > sdl-ios-xcode
annotate include/SDL_byteorder.h @ 1190:173c063d4f55
OS/2 port!
This was mostly, if not entirely, written by "Doodle" and "Caetano":
doodle@scenergy.dfmk.hu
daniel@caetano.eng.br
--ryan.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 23 Nov 2005 07:29:56 +0000 |
| parents | 0f9d463bf09c |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 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 | |
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20 slouken@libsdl.org |
| 0 | 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 | |
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37 #ifdef __linux__ |
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38 # include <endian.h> |
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39 # if BYTE_ORDER == LITTLE_ENDIAN |
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40 # define SDL_BYTEORDER SDL_LIL_ENDIAN |
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41 # else |
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42 # define SDL_BYTEORDER SDL_BIG_ENDIAN |
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43 # endif |
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Ryan C. Gordon <icculus@icculus.org>
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969
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44 |
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Ryan C. Gordon <icculus@icculus.org>
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45 #else |
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Ryan C. Gordon <icculus@icculus.org>
parents:
969
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46 |
| 0 | 47 /* Pardon the mess, I'm trying to determine the endianness of this host. |
| 48 I'm doing it by preprocessor defines rather than some sort of configure | |
| 49 script so that application code can use this too. The "right" way would | |
| 50 be to dynamically generate this file on install, but that's a lot of work. | |
| 51 */ | |
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52 #if (defined(__i386__) || defined(__i386)) || \ |
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53 defined(__ia64__) || defined(WIN32) || \ |
| 0 | 54 (defined(__alpha__) || defined(__alpha)) || \ |
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55 (defined(__arm__) || defined(__thumb__)) || \ |
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56 (defined(__sh__) || defined(__sh64__)) || \ |
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57 (defined(__mips__) && defined(__MIPSEL__)) || \ |
| 1190 | 58 defined(__SYMBIAN32__) || defined(__x86_64__) || \ |
| 59 defined(__OS2__) || defined(__LITTLE_ENDIAN__) | |
| 0 | 60 #define SDL_BYTEORDER SDL_LIL_ENDIAN |
| 61 #else | |
| 62 #define SDL_BYTEORDER SDL_BIG_ENDIAN | |
| 63 #endif | |
| 64 | |
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65 #endif /* __linux__ */ |
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66 |
| 0 | 67 #endif /* _SDL_byteorder_h */ |