> Here are the different forms :
> 
> bla; (* warning if partial application or if returned type not unit *)
> ignore(bla); (* warning if partial application, ignore returned type *)
> let () = bla (* error if partial application or if returned type not unit *)
> let _ = bla (* no warning or errors !! be careful if you want to use it *)

let (_:bool) = bla (* error if partial application or if returned type not bool *)

is also very handy.

--KW 8-)
-- 
Keith Wansbrough <kw217@cl.cam.ac.uk>
http://www.cl.cam.ac.uk/users/kw217/
University of Cambridge Computer Laboratory.

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