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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: operation can be dispatching in only one type
Date: Tue, 24 Nov 2015 14:48:24 -0700
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Date: 2015-11-24T14:48:24-07:00
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On 11/24/2015 01:25 PM, Niklas Holsti wrote:
> On 15-11-24 19:09 , Jeffrey R. Carter wrote:
> 
>> Note that the Ada construct that most closely matches a "class" is a protected
>> type.
> 
> Huh? What have mutual exclusion and interrupt-handling to do with "class"?

Nothing.

> Ok, some languages have "synchronized" classes, mixing the two concepts.
> 
> Perhaps you mean that there is a syntactic resemblance, in that the operations
> and data of a protected type are indeed enclosed in dedicated "is" .. "end"
> brackets?

I mean that a protected type defines a set of values and operations on those
values, encapsulates the values and operations, and hides the implementation of
the values.

-- 
Jeff Carter
"Whatever it is, I'm against it."
Horse Feathers
46