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Date: Thu, 20 Feb 2003 19:23:39 -0500
From: artboreb@netscape.net (Arturo Borquez)
To: oliver@first.in-berlin.de (Oliver Bandel)
Cc: caml-list@inria.fr
Subject: RE: [Caml-list] Error: Type variables, that can not be generalized?!
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oliver@first.in-berlin.de (Oliver Bandel) wrote:

Easy, when you add to the code the line adding an element
to the hash table you've also tell to the type system that
the hash table had a concrete type. Same problem will be
raised with an empty list [] wich is never used.

Regards

Arturo 

>Hello,
>
>
>I'm teseting my code in the toplevel, and see no problems.
>I use the ocamlc-compiler and it produces this message:
>
>
>  "The type of this expression, ('_a, `_b) Hashtbl.t,
>   contains type variables that cannot be generalized"
>
>The line, where the problem occured was an unused
>Hashtable-Creation.
>
>When I removed that line, or when I added a Hashtbl.add,
>the message disappeared.
>
>Why is this a problem?
>
>The line was:
>  let entry_hash = Hashtbl.create 100000
>
>The added line, which lets the error-message disappears
>was:
>
>   Hashtbl.add entry_hash "foo" "bar"
>
>
>Any hints, ewhat the problem is?
>
>
>Regards,
>   Oliver
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-- 
Arturo Borquez


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