DOKK / manpages / debian 13 / libsdl3-doc / SDL_BYTEORDER.3.en
SDL_BYTEORDER(3) SDL3 FUNCTIONS SDL_BYTEORDER(3)

SDL_BYTEORDER - A macro that reports the target system's byte order.

Defined in SDL3/SDL_endian.h

#include "SDL3/SDL.h"
#define SDL_BYTEORDER   SDL_LIL_ENDIAN___or_maybe___SDL_BIG_ENDIAN

This is set to either SDL_LIL_ENDIAN
or

SDL_BIG_ENDIAN
(and maybe other values in the future, if something else becomes popular). This can be tested with the preprocessor, so decisions can be made at compile time.

#if SDL_BYTEORDER == SDL_BIG_ENDIAN
SDL_Log("This system is bigendian.");
#endif
    

This macro is available since SDL 3.2.0.

(3), SDL_LIL_ENDIAN(3), (3), SDL_BIG_ENDIAN(3)

SDL 3.2.10 Simple Directmedia Layer