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From: B0966864 <B0966864@boeing.com>
Subject: Re: pragma Import with 'Address clause
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References: <slrnb7guml.nt.lutz@taranis.iks-jena.de>
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Date: Wed, 19 Mar 2003 15:17:05 GMT
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Date: 2003-03-19T15:17:05+00:00
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The Pragma Import should not be needed. I have used the overlays and do
not have the Import statements for any of them in this case. You can
also use the syntax of
 
for b use at a'Address 

I have seen both used in ada95

Jerico

Lutz Donnerhacke wrote:
> 
> A common technique to reinterpret data is:
>   a : AT;
>   [...]
>   b : BT;
>   for b'Address use a'Address;
>   pragma Import(Ada, b);
> 
> Is the "pragma Import" really necessary? Of course, the ARM says, that
> elaboration and definition of the imported object is externally defined. So
> they are omitted from the Ada code itself.
> 
> Assume BT is a record without any default expressions. Does this mean, the
> pragma can be omitted from the source code?
> 
> Background: Spark prohibits the use of Pragma Import on objects.
>