# SDL_PRILLX A printf-formatting string for an `unsigned long long` value as upper-case hexadecimal. ## Header File Defined in [<SDL3/SDL_stdinc.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_stdinc.h) ## Syntax ```c #define SDL_PRILLX SDL_PRILL_PREFIX "X" ``` ## Remarks Use it like this: ```c SDL_Log("There are %" SDL_PRILLX " bottles of beer on the wall.", bottles); ``` ## Version This macro is available since SDL 3.2.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryStdinc](CategoryStdinc)