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From: Robert A Duff <bobduff@shell01.TheWorld.com>
Newsgroups: comp.lang.ada
Subject: Re: S-expression I/O in Ada
Date: Mon, 09 Aug 2010 12:50:25 -0400
Organization: The World Public Access UNIX, Brookline, MA
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Date: 2010-08-09T12:50:25-04:00
List-Id: <comp.lang.ada>

Georg Bauhaus <rm.dash-bauhaus@futureapps.de> writes:

> Is anything wrong with packed arrays of Booleans for status thingies?

No.

In fact, arrays of Booleans (packed or not) are better than modular
types in that they can have an arbitrary number of bits.
If you have 50 flags, and use a modular type, that's not
portable -- it works in GNAT, but not all Ada compilers.
And then if you change your mind and want 70 flags,
you have to rewrite all the code.

And if packed, they should be equally efficient.

- Bob