Use this function to swap the byte order of a 64-bit value.
Defined in [SDL_endian.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_endian.h)
SDL_FORCE_INLINE Uint64 SDL_Swap64(Uint64 x);
Uint64 |
x |
the value to be swapped. |
(Uint64) Returns the swapped value.