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From: Victor Porton <porton@narod.ru>
Newsgroups: comp.lang.ada
Subject: Re: Interfacing enums with C
Date: Sun, 17 Aug 2014 22:46:34 +0300
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Date: 2014-08-17T22:46:34+03:00
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Simon Wright wrote:
> Victor Porton <porton@narod.ru> writes:
> 
>> type Option_Type is (A, B);
>> for Option_Type'Size use Interfaces.C.unsigned'Size;
>> for Option_Type use (A=>1, B=>2);
> 
> What's wrong with
> 
>    type Option_Type is (A, B)
>       with Convention => C;
>    for Option_Type use (A => 1, B => 2);

http://www.ada-auth.org/standards/12rm/html/RM-B-1.html 14/3 - 18
does not say that enumeration types are eligible for convention C.

So, in my opinion, RM does not require the following code to be compilable:

   type Option_Type is (A, B)
      with Convention => C;

> And your first interfacing convention is much better. IMO.

-- 
Victor Porton - http://portonvictor.org