// assorted undocumented extensions
string(string, float) netaddress_resolve = #625;
string(string search, string replace, string subject) strreplace = #484;
+string(string search, string replace, string subject) strireplace = #485;
string(float uselocaltime, string format, ...) strftime = #478;
float(string s) tokenize_console = #514;
float(float i) argv_start_index = #515;