* Goswin von Brederlow: > - I create a 3 tupple exp > - fill it with (Val_int(errno), caml_copy_string("MD5.file"), filename) > - call caml_raise_with_arg(tag, exp) This raises an exception with a parenthesized tuple ("exception E of (int * string * string)", IOW a single-argument exception which takes a triple as argument.