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From: Lucretia <Lucretia9000@yahoo.co.uk>
Newsgroups: comp.lang.ada
Subject: Re: How do I disable elaboration code on this
Date: Sun, 10 Apr 2011 14:19:37 -0700 (PDT)
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Date: 2011-04-10T14:19:37-07:00
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On Apr 10, 9:47=A0pm, Georg Bauhaus <rm-host.bauh...@maps.futureapps.de>
wrote:
> pragma Restrictions (No_Elaboration_Code);
>
> with System;
>
> package ISR is
> =A0 =A0 procedure Dummy;
> =A0 =A0 pragma Convention (C, Dummy);
>
> private
> =A0 =A0 type Cb is not null access procedure;
> =A0 =A0 pragma Convention (C, Cb);
>
> =A0 =A0 type CbW is limited record
> =A0 =A0 =A0 =A0C : Cb :=3D Dummy'Access;
> =A0 =A0 end record;
> =A0 =A0 type Vectors is array (1 .. 4) of CbW;
> =A0 =A0 pragma Convention (C, Vectors);
>
> =A0 =A0 Addr : constant System.Address :=3D System'To_Address
> =A0 =A0 =A0 =A0 =A0(16#0000_0000#);
>
> =A0 =A0 Vector : Vectors;
> =A0 =A0 pragma Import (Ada, Vector);
> =A0 =A0 for Vector'Address use Addr;
> end ISR;

But can you initialise the array with different routines? I'm betting
not. In a real implementation, there will be a number of ISR's but
some may point to the dummy one.

Luke.