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From: Kim Rostgaard Christensen <krc@greenpc.dk>
Newsgroups: comp.lang.ada
Subject: Re: C chars_ptr STORAGE_ERROR in Imported function
Date: Sat, 23 Aug 2008 00:54:11 +0200
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Date: 2008-08-23T00:54:11+02:00
List-Id: <comp.lang.ada>

Niklas Holsti wrote:
...
> I think it would be better to use the To_Chars_Ptr function, which makes 
> a chars_ptr that points to Errbuf itself, without allocating another 
> char_array, so there is no need to Free anything. This also needs a 
> change in the declaration of Errbuf:
> 
>    Errbuf : aliased Char_Array := (1 .. 256 => Interfaces.C.nul);
> 
...
>    Errbuf_Ptr := To_Chars_Ptr (Errbuf'Unchecked_Access, False);
> 
> followed by:
> 
>>       Device := pcap_lookupdev(Errbuf_ptr);
> 
...
> HTH
> 

This works like a charm, thanks a lot.

KRC