Man page - sdl_lil_endian(3)

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SDL_LIL_ENDIAN - A value to represent littleendian byteorder.

Defined in SDL3/SDL_endian.h

#include "SDL3/SDL.h"

#define SDL_LIL_ENDIAN 1234

This is used with the preprocessor macro SDL_BYTEORDER , to determine a platform’s byte ordering:

#if SDL_BYTEORDER == SDL_LIL_ENDIAN
SDL_Log("This system is littleendian.");
#endif

This macro is available since SDL 3.2.0.