On Mon, Jun 22, 2015 at 1:42 PM, Francois Berenger <
francois.berenger@inria.fr> wrote:

> On 06/22/2015 06:07 PM, Mark Shinwell wrote:
>
>> I've heard the argument of Gerd from various people on many occasions.
>> Personally, I don't buy it; I think the situation where the error
>> message is deficient doesn't happen very often, whereas ";;" is
>> syntactic clutter that I have to see every day (and would rather not
>> see).
>>
>> Mark
>>
>
> I am curious.
> How do you make this file compile without ';;' in it ?
>
> # cat src/test.ml
> ---
> let main () =
>   failwith "not implemented yet"
> ;;
>
> main ()
> ---
>
> I always use ';;' just for that use case.
> I really don't know if there is another way that fits a single file.


An idiomatic way is to write:

    let () = main ()

Your example is particular case, showing why `;;` is bad. Because it forces
compiler to take
code that is not in ocaml syntax.