11 size_t vsnprintf(char *buf, size_t size, const char *str, va_list args);
13 size_t snprintf(char *buf, size_t size, const char *str, ...)
14 __attribute__((format(printf, 3, 4)));
16 size_t sprintf(char *buf, const char *str, ...)
17 __attribute__((format(printf, 2, 3)));
19 size_t printf(const char *str, ...)
20 __attribute__((format(printf, 1, 2)));