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From: "Alex Mentis" <foo@invalid.invalid>
Newsgroups: comp.lang.ada
Subject: Re: Pop function
Date: Thu, 15 Dec 2011 03:00:10 +0000 (UTC)
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Date: 2011-12-15T03:00:10+00:00
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Alex Mentis wrote:

> Rego, P. wrote:
> 
> > > Your public interface should never use access types.
> > > Anonymous types are a bad idea.
> > Why so does the language allow it? Currently I could not think a
> > better way of running over a pointer list: 
> 
> Instead of
> 
> type T_List is
>    record
>       Next : access T_List;
>       Item : Integer;
>    end record;
> T_List_Ptr is access T_List;
> 
> you should use an incomplete declaration (ARM 3.10.1):
> 
> type T_List; -- incomplete declaration
> 
> type T_List_Ptr is access T_List;
> 
> type T_List is
>    record
>       Next : T_List_Ptr;
> 	Item : Integer;
>    end record;
> 
> 
> -Alex

I meant to add, that would alleviate a lot of the type conversion
you're doing.