SDL_PRINTF_VARARG_FUNC - Macro that annotates a vararg function that operates like printf.
Contents
Availability
This macro is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.10 SDL_PRINTF_VARARG_FUNC(3)
Description
If we were to annotate fprintf :
int fprintf(FILE *f, const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2);
This notes that the second parameter should be a printf-style format string, followed by ... . 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.
This can (and should) be used with
SDL_PRINTF_FORMAT_STRING
as well, which between them will cover at least Visual Studio, GCC, and Clang.
Header File
Defined in SDL3/SDL_stdinc.h
Name
SDL_PRINTF_VARARG_FUNC - Macro that annotates a vararg function that operates like printf.
Synopsis
#include"SDL3/SDL.h"#defineSDL_PRINTF_VARARG_FUNC(fmtargnumber)__attribute__((format(__printf__,fmtargnumber,fmtargnumber+1)))
