-ssize_t strfmon(char *, size_t, const char *, ...);
-ssize_t strfmon_l(char *, size_t, locale_t, const char *, ...);
+ssize_t strfmon(char *__restrict, size_t, const char *__restrict, ...);
+ssize_t strfmon_l(char *__restrict, size_t, locale_t, const char *__restrict, ...);