From: "Alex R. Mosteo" <devnull@mailinator.com>
Subject: Re: Efficiently setting up large quantities of constant data
Date: Thu, 16 Dec 2004 19:29:18 +0100
Date: 2004-12-16T19:29:18+01:00 [thread overview]
Message-ID: <41C1D3FE.2090207@mailinator.com> (raw)
In-Reply-To: <fa59671.0412131348.2677f5ec@posting.google.com>
Michael Mounteney wrote:
> I want to set up about 100 variables which somehow reference
> variable-length arrays of other things. The other things, for a given
> variable, are fixed. Simplifying:
>
> type component is
> record
> X : character;
> end record;
>
> type component_list is array (positive range <>) of component;
>
> type component_ref is access all component_list;
>
> type structure is
> record
> part : component_ref;
> end record;
>
> So I will have lots of structures scattered about, which will be
> completely constant. I would like to enforce this constancy, but Ada
> (as far as I know) does not (unlike C++; that should get some hackles
> rising) allow `constant' to be splashed about in type definitions.
> This is on GNAT, which does not support pragma read_only.
>
> Is there any way to ensure that these data are not modified, other
> than by forbidding direct access to structure.part etc?
Reading the other posts I think you may be interested in the resource
management of AWS [Ada Web Server].
prev parent reply other threads:[~2004-12-16 18:29 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-13 21:48 Efficiently setting up large quantities of constant data Michael Mounteney
2004-12-13 22:09 ` Stephen Leake
2004-12-13 22:15 ` Luke A. Guest
2004-12-14 0:20 ` Jeffrey Carter
2004-12-14 8:43 ` Martin Krischik
2004-12-14 12:18 ` Simon Wright
2004-12-15 21:10 ` Brian May
2004-12-16 23:18 ` Nick Roberts
2004-12-16 12:36 ` Dr. Adrian Wrigley
2004-12-16 13:50 ` Marc A. Criley
2004-12-17 2:32 ` John B. Matthews
2004-12-16 14:06 ` rien
2004-12-16 14:24 ` Vinzent 'Gadget' Hoefler
2004-12-16 18:12 ` Dr. Adrian Wrigley
2004-12-16 23:25 ` Nick Roberts
2004-12-17 5:20 ` tmoran
2004-12-17 8:38 ` Vinzent 'Gadget' Hoefler
2004-12-17 13:53 ` Dr. Adrian Wrigley
2004-12-17 14:16 ` Alex R. Mosteo
2004-12-16 17:11 ` Andre
2004-12-16 21:52 ` Larry Kilgallen
2004-12-16 23:23 ` Nick Roberts
2004-12-16 23:47 ` Dr. Adrian Wrigley
2004-12-19 14:34 ` Simon Wright
2004-12-16 18:29 ` Alex R. Mosteo [this message]
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