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From: matsw@bluewin.ch (Mats Weber)
Newsgroups: comp.lang.ada
Subject: Re: Problem with Gnat.Dynamic_Tables
Date: 12 Jul 2002 15:52:43 -0700
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achrist@easystreet.com wrote in message news:<3D2F0A3D.8DEF335F@easystreet.com>...

> [...] I see that it
> works like a Map, which means, I suppose, that there is some search 
> involved in simply accessing an element of the array, but this is not a
> noticeable problem, given all the other inefficiencies in my code, which
> hardly add up to anything noticeable in toto.

Dynamic_Array is implemented using AVL trees. So there is searching
involved for each access and the complexity is O(Log N). But it is a
far better choice than an array implementation if your key values are
sparse.