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From: Richard Riehle <richard@adaworks.com>
Newsgroups: comp.lang.ada
Subject: Re: Quality systems (Was: Using Ada for device drivers? (Was: theAda
 mandate, and why it collapsed and died))
Date: Thu, 22 May 2003 23:21:11 -0700
Organization: AdaWorks Software Engineering
Message-ID: <3ECDBDD7.B2819CE4@adaworks.com>
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Xref: archiver1.google.com comp.lang.ada:37670
Date: 2003-05-23T06:19:07+00:00
List-Id: <comp.lang.ada>

Hyman Rosen wrote:

> That doesn't mean that Ada didn't copy the notion from C.

It did not copy the notion from C.  Modular types are an old
form of  type.  Some of the early Ada 83 compilers did support
an Unsigned Type (Alsys).

I recall some projects where there was no direct unsigned
type support and it caused all sorts of complicated problems.
This was not added because C had it but because it was
clearly necessary for a large range of software solutions.

Richard Riehle