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From: Matthew Heaney <matthewjheaney@earthlink.net>
Newsgroups: comp.lang.ada
Subject: Re: OO Style with Ada Containers
Date: Mon, 26 Nov 2007 03:58:24 +0000
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Date: 2007-11-26T03:58:24+00:00
List-Id: <comp.lang.ada>

Ludovic Brenta <ludovic@ludovic-brenta.org> writes:

> You can still append to a plain String by creating a
> new String:
>
> declare
>    New_String : constant Word_Counter
>                   (Length => Old_String.Length + 3,
>                    Word => Old_String.Word & "...",
>                    Count => Old_String.Count);
> begin
>    Map.Replace_Element (Position => ...,
>                         New_Item => New_String);
> end;

Something here isn't correct, since the Word_Counter subtype would only be used
for a set (although perhaps Map in your example has type Set), but also because
in the example the key should never change: only the associated count should
change (that's what Update_Element_Preserving_Key allows).