Re: List.flatten....

"'Mr. Herr' [email protected] [ocaml_beginners]" <[email protected]> Sat, 2 Apr 2016 12:33:57 +0200

Newsgroups	gmane.comp.lang.ocaml.beginners
Message-ID	<[email protected]>


On 02.04.2016 07:32, Douglas Lewit [email protected] [ocaml_beginners] wrote:
>  
>
> I think I read somewhere that the cons operator :: is more efficient than the
> append operator @, so whenever possible it's better to use cons rather than append. 

# List.cons ;;  (* this is :: *)

- : 'a -> 'a list -> 'a list = <fun>

# List.append ;;  (* this is @ *)

- : 'a list -> 'a list -> 'a list = <fun>

# 


there is a tiny little difference, can you find it?

/Str.