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From: "Matthew Heaney" <mheaney@on2.com>
Newsgroups: comp.lang.ada
Subject: Re: Ada.Containers.Vectors - querying multiple elements
Date: 26 Apr 2005 08:44:33 -0700
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Date: 2005-04-26T08:44:33-07:00
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Duncan Sands wrote:
>
> (1) efficiency - suppose (for example) I want to transmit the
contents
> of my vector down a socket.

You're not grokking the Ada95 way of doing things.  Use the stream
operations for that.  All containers (indeed, all non-limited types in
the predefined language environment) support streaming.

Your socket abstraction should have a selector function to return a
reference to a stream, so you can say:

declare
  S : Socket;
  V : Vector;
begin
 ...
  Vector'Write (Stream (S), V);
end;


> (2) reuse of legacy code - I don't know about you, but I've a lot of
> legacy code around that takes an array as a parameter...

A vector container isn't necessarily implemented as an array, so there
are no benefits to having array-based operations.