OCaml で Ruby の puts もどき。可変個の引数を取る。 $ ocaml -rectypes Objective Caml version 3.09.3 # let rec puts s = print_endline s; puts;; val puts : string -> 'a as 'a = <fun> # puts "foo" "bar";; foo bar - : string -> 'a as 'a = <fun> # puts "o</fun></fun>…