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Annotation of sbbs/include/sdl/sdl_byteorder.h, revision 1.1.1.1

1.1       root        1: /*
                      2:     SDL - Simple DirectMedia Layer
                      3:     Copyright (C) 1997-2004 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:     [email protected]
                     21: */
                     22: 
                     23: #ifdef SAVE_RCSID
                     24: static char rcsid =
                     25:  "@(#) $Id: SDL_byteorder.h,v 1.1.1.1 2005/11/18 23:23:29 rswindell Exp $";
                     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(__i386)) || \
                     43:      defined(__ia64__) || defined(WIN32) || \
                     44:     (defined(__alpha__) || defined(__alpha)) || \
                     45:      defined(__arm__) || \
                     46:     (defined(__mips__) && defined(__MIPSEL__)) || \
                     47:      defined(__SYMBIAN32__) || \
                     48:      defined(__x86_64__) || \
                     49:      defined(__LITTLE_ENDIAN__)
                     50: #define SDL_BYTEORDER  SDL_LIL_ENDIAN
                     51: #else
                     52: #define SDL_BYTEORDER  SDL_BIG_ENDIAN
                     53: #endif
                     54: 
                     55: #endif /* _SDL_byteorder_h */

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