From: "Bob Klungle" <bklungle1@verizon.net>
Subject: Re: Access type (mis)use (Was: Bug in Ada (SuSe 10.2) ?)
Date: Thu, 21 Feb 2008 19:40:34 GMT
Date: 2008-02-21T19:40:34+00:00 [thread overview]
Message-ID: <Sskvj.16399$k_4.3269@trnddc04> (raw)
In-Reply-To: ygefxvmv6ir.fsf_-_@hugsarin.dmusyd.edu
"Jacob Sparre Andersen" <sparre@nbi.dk> wrote in message
news:ygefxvmv6ir.fsf_-_@hugsarin.dmusyd.edu...
> billjones6789@yahoo.com writes:
>
>> What should this print?
>>
>> with Ada.Text_IO;
>> procedure Dangling_Pointer is
>> type Int_Access is access all integer;
>>
>> Save : Int_Access;
>>
>> type AirSpeed is record
>> Altitude : aliased integer := 9;
>> end record;
>>
>> type AoA (Rudder: access AirSpeed) is limited null record;
>>
>> function WoW (Slats: access AirSpeed) return Int_Access is
>> begin
>> return Slats.Altitude'Access;
>> end;
>>
>> procedure Calculate is
>> Fuel: aliased AirSpeed;
>> Heading: AoA (Fuel'Access);
>> begin
>> Save := WoW (Heading.Rudder);
>
> I would expect the above line to give a compile time error. If it
> doesn't: Why?
>
> Greetings,
>
> Jacob
> --
> "Preserve wildlife, pickle a duck."
For what it is worth, cygwin gnatmake 3.4.4 yields
9
11
cheers...bob
next prev parent reply other threads:[~2008-02-21 19:40 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-19 8:47 Bug in Ada (SuSe 10.2) ? Reinert Korsnes
2008-02-19 9:08 ` Niklas Holsti
2008-02-19 9:53 ` Reinert Korsnes
2008-02-19 11:21 ` Ludovic Brenta
2008-02-20 12:41 ` Reinert Korsnes
2008-02-20 16:50 ` Adam Beneschan
2008-02-20 18:31 ` Jeffrey R. Carter
2008-02-20 23:10 ` Adam Beneschan
2008-02-20 23:22 ` Adam Beneschan
2008-02-21 0:31 ` Randy Brukardt
2008-02-21 8:56 ` Jean-Pierre Rosen
2008-02-21 9:08 ` Alex R. Mosteo
2008-02-21 9:27 ` Ludovic Brenta
2008-02-21 9:46 ` billjones6789
2008-02-21 12:27 ` Access type (mis)use (Was: Bug in Ada (SuSe 10.2) ?) Jacob Sparre Andersen
2008-02-21 19:40 ` Bob Klungle [this message]
2008-02-21 21:25 ` Jeffrey R. Carter
2008-02-21 21:57 ` Vadim Godunko
2008-02-21 22:32 ` Bug in Ada (SuSe 10.2) ? Randy Brukardt
2008-02-22 16:10 ` billjones6789
2008-02-22 19:21 ` Georg Bauhaus
2008-02-22 21:29 ` Vadim Godunko
2008-02-22 21:39 ` Robert A Duff
2008-02-23 10:16 ` billjones6789
2008-02-22 19:52 ` Randy Brukardt
2008-02-23 10:36 ` billjones6789
2008-02-26 0:32 ` Randy Brukardt
2008-02-26 16:46 ` billjones6789
2008-02-26 20:53 ` Randy Brukardt
2008-02-27 1:05 ` Robert A Duff
2008-02-27 10:06 ` billjones6789
2008-02-27 17:49 ` Robert A Duff
2008-02-28 0:30 ` Randy Brukardt
2008-02-28 15:33 ` Robert A Duff
2008-03-06 17:46 ` Adam Beneschan
2008-02-21 0:31 ` Jeffrey R. Carter
2008-02-21 0:35 ` Jeffrey R. Carter
2008-03-06 11:55 ` Colin Paul Gloster
2008-02-21 0:55 ` tmoran
2008-02-21 8:08 ` billjones6789
2008-02-21 9:11 ` Alex R. Mosteo
2008-02-21 23:01 ` Randy Brukardt
2008-02-22 16:43 ` Adam Beneschan
2008-02-22 9:06 ` Stephen Leake
2008-02-22 5:40 ` Gautier
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