On 10/30/06, Anastasia Gornostaeva <ermine@ermine.pp.ru> wrote:
> Hello.
>
> What I need to drink to compile it?
>
> class foo ch =
> object
>  method myprintf = Printf.fprintf ch
> end
>
> The compiler says
> The method myprintf has type ('a, out_channel, unit) format -> 'a where 'a
> is unbound
>

This one works:

class ['a] foo ch =
object
 method myprintf (fmt : ('a, out_channel, unit) format) =
   Printf.fprintf ch fmt
end

-- 
Nicolas Pouillard