beginner

beginner

[Aws Albarghouthi]

Good day,

I am an ocaml beginner and I am trying to modify an open source  
application. I'm facing the problem that functions within a file  
can't call each other. I'm getting the error Unbound value <func name>.

Thank you,
Aws

Re: [Caml-list] beginner

[Till Varoquaux]

The list where beginner's questions are addressed is:
http://groups.yahoo.com/group/ocaml_beginners
Your problem is addressed in the ocaml manual under:
2.5  Modules and separate compilation
on the website
(http://caml.inria.fr/pub/docs/manual-ocaml/manual004.html)

Please understand that there are a lot of computer science top hats
(which I'm not) reading this mailling list and that you are wasting
their time asking for basic informations.

Regards,
Till

On 7/4/06, Aws Albarghouthi <albargah@mcmaster.ca> wrote:
> Good day,
>
> I am an ocaml beginner and I am trying to modify an open source
> application. I'm facing the problem that functions within a file
> can't call each other. I'm getting the error Unbound value <func name>.
>
> Thank you,
> Aws
>
> _______________________________________________
> Caml-list mailing list. Subscription management:
> http://yquem.inria.fr/cgi-bin/mailman/listinfo/caml-list
> Archives: http://caml.inria.fr
> Beginner's list: http://groups.yahoo.com/group/ocaml_beginners
> Bug reports: http://caml.inria.fr/bin/caml-bugs
>

Re: [Caml-list] beginner

[Christophe TROESTLER]

On Tue, 4 Jul 2006, Aws Albarghouthi <albargah@mcmaster.ca> wrote:
> 
> I am an ocaml beginner and I am trying to modify an open source  
> application. I'm facing the problem that functions within a file  
> can't call each other. I'm getting the error Unbound value <func name>.

This is normal.

  let f ... = ...
  
  let g ... = ...

The function g can use f but f cannot call g because g is not known at
that point.  If f must also call g, then f and g are mutually
recursive and you should declare them as

  let rec f ... = ...
  
  and g ... = ...

You can also group your functions as methods of an object (these can
call each other) :

object(self)
  method f ... = ... self#g ...
  method g ... = ... self#f ...
end

Cheers,
ChriS