From: "Patrice Freydiere" <frett27@free.fr>
Subject: Re: Tagged Types ..
Date: Sun, 05 Sep 2004 15:09:14 +0200
Date: 2004-09-05T13:07:36+02:00 [thread overview]
Message-ID: <pan.2004.09.05.13.09.10.851273@free.fr> (raw)
In-Reply-To: pan.2004.09.05.12.54.09.858608@free.fr
one more thing ....
no exceptions are raised .... ??? the serveur process just stop
Patrice
On Sun, 05 Sep 2004 14:54:09 +0200, Patrice Freydiere wrote:
> Hi there,
>
> i'm using GNAT 3.15p, on linux and i got a strange message in using an
> access to tagged type
>
> i understand this is a runtime error message ???
>
>
> (null): Bad address
>
> here is the context of execution ...
>
>
> for I in As'Range loop
> declare
> Im : Ais.Image.Image_access :=
> Ais.Image.Imagecollections.Item_at(Il,I);
>
> Ic : Ais.Image.Image'Class := Im.all;
> begin
> Ais.Log.Log("Image retreived");
> if Im=null then
> Ais.Log.Log("null address ");
> end if;
> declare
> Ba : Ada.Streams.stream_element_array
> := Ais.image.Create_thumbnail(Ic);
> S : String( Integer(Ba'first)..Integer(Ba'last) );
> begin
> Ais.Log.Log("Add");
> for J in Ba'Range loop
> S(Integer(J)) :=
> Character'Val(Ada.Streams.Stream_Element'pos(Ba(J)));
> end loop;
>
>
> on output i saw
> 9: FileName =>fleur.png<=
> 1: Path =>/<=
> 9: FileName =>fleur.png<=
> 1: Path =>/<=
> 9: FileName =>fleur.png<=
> 1: Path =>/<=
> 9: FileName =>selection<=
> sending ...
> Sending Email
> Getting the Image /file/2001-03/Soiree_Projet/Photo_101-3-11-09.jpg
> Getting the Image /file/2001-03/Soiree_Projet/Photo_101-3-11-10.jpg
> Build attachment
> Image retreived
> (null): Bad address
> [use@villeurbanne]$
>
>
> i tried to put a log to the called methode (Create_thumbnail) but no log
> appear ..
> is this a compiler pb ... ??
>
>
> i still had several issues using tagged typed , sometime, the bug was due
> to not using intermediate variables to get tagged type ??
>
> is there something wrong in my development method ? are there some
> recommendation to use tagged type ?
>
>
> thank's for your help!
> Patrice
next prev parent reply other threads:[~2004-09-05 13:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-05 12:54 Tagged Types Patrice Freydiere
2004-09-05 11:15 ` Simon Wright
2004-09-05 13:09 ` Patrice Freydiere [this message]
2004-09-05 17:37 ` Jeff C r e e.m
2004-09-05 21:08 ` Jeffrey Carter
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