"Michael Erdmann" <michael.erdmann@snafu.de> a �crit dans le message de news:un82u-4kb.ln1@boavista.snafu.de...
[SNIP]
> Does any body know, what this loop causes?! I am not sure
> if this is a bug or simply i missed the point.
>
You missed the point :-)

Serialize is a general entry point, which dispatches to Write. If you call it again from Write, it will redispatch
to Write, hence the loop.

Now do you think that Write of B is really Serialize of A, plus something else?
Isn't it *Write* of A, plus something else? If you change your package to

package body B is

    procedure Write(
       This : in Object ) is
    begin
       A.Write( A.Object( This ) );
       Put_Line( "Q =" & Natural'Image(This.Q));
    end Write;

end B;

It will be OK.

Oh, by the way, why do you need Serialize at all? Since all it does is call Write, why don't you
call Write directly?

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           J-P. Rosen (rosen@adalog.fr)
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