From: "Randy Brukardt" <randy@rrsoftware.com>
Subject: Re: Address representation clause is getting 0
Date: Wed, 31 Dec 2003 15:48:36 -0600
Date: 2003-12-31T15:48:36-06:00 [thread overview]
Message-ID: <vv6h3m13fl4k56@corp.supernews.com> (raw)
In-Reply-To: pan.2003.12.31.13.53.00.912339@n_o_p_o_r_k_a_n_d_h_a_m.abyss2.demon.co.uk
"Luke A. Guest" <laguest@n_o_p_o_r_k_a_n_d_h_a_m.abyss2.demon.co.uk> wrote
in message
news:pan.2003.12.31.13.53.00.912339@n_o_p_o_r_k_a_n_d_h_a_m.abyss2.demon.co.
uk...
> I think that this is an elaboration problem. Now as I don't have a runtime
> or any tools, I need to rely on my own code (think of this as an OS
> kernel).
>
> Does anyone know what I need to do to get this to work?
Ada access objects are initialized to null by default. The object to which
you applied the address clause is thus getting initialized. You have to tell
the compiler not to do that, and the way you do that is to give a pragma
Import. Something like
pragma Import (SB_Block, Ada);
will suppress the initialization, allowing you to read the data.
As to why you can't read the 'Address itself, I don't know. That looks like
a bug to me.
Randy.
next prev parent reply other threads:[~2003-12-31 21:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-31 12:29 Address representation clause is getting 0 Luke A. Guest
2003-12-31 13:53 ` Luke A. Guest
2003-12-31 21:48 ` Randy Brukardt [this message]
2003-12-31 23:03 ` Luke A. Guest
2004-01-01 17:24 ` Luke A. Guest
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