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Date: Mon, 05 Feb 2007 22:39:19 +0200
From: Niklas Holsti <niklas.holsti@nospam.please>
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Newsgroups: comp.lang.ada
Subject: Re: Ada.Containers.Indefinite_Doubly_Linked_Lists
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Date: 2007-02-05T22:39:19+02:00
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Carroll, Andrew wrote:
> [ ... ]
> Package Attribute_List is new new
> Ada.Containers.Indefinite_Doubly_Linked_Lists (Attribute);
> 
> Type Table is record
> 	Name: String(50);
> 	Attributes:  Attribute_List;
                      ^^^^^^^^^^^^^^
Should be            Attribute_List.List;
because Attribute_List is a package that manages lists of Attributes, 
not a data type. The data type is Attribute_List.List.

> End record

> Package Table_List is new Ada.Containers.Indefinite_Doubly_Linked_Lists
> (Table);

I find it clearer to use names in plural form for packages that manage 
many objects of a given type. In this case I would use the name 
Attribute_Lists (not ..._List) for the package that manages lists of 
Attribute objects (each such list is an object of type 
Attribute_Lists.List). I would use the name Table_Lists for the package 
that manages lists of Table objects (each such list is an object of type 
Table_Lists.List).

The language-defined Ada packages use the same convention, for example 
Ada.Containers.Doubly_Linked_Lists (not ..._List). Of course you can use 
any names you like.

-- 
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
       .      @       .