###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_PRINTF_FORMAT_STRING Macro that annotates function params as printf-style format strings. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_stdinc.h) ## Syntax ```c #define SDL_PRINTF_FORMAT_STRING _Printf_format_string_ ``` ## Remarks If we were to annotate `fprintf`: ```c int fprintf(FILE *f, SDL_PRINTF_FORMAT_STRING const char *fmt, ...); ``` This notes that `fmt` should be a printf-style format string. The compiler or other analysis tools can warn when this doesn't appear to be the case. On compilers without this annotation mechanism, this is defined to nothing. ## Version This macro is available since SDL 3.1.3. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryStdinc](CategoryStdinc)