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From: "Jean-Pierre Rosen" <rosen.adalog@wanadoo.fr>
Subject: Re: Question for the folks who designed Ada95
Date: 1999/04/29
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Matthew Heaney a �crit dans le message ...
>Robert Dewar <robert_dewar@my-dejanews.com> writes:
>
>> For an example where JDI's vote did count more than anyone
>> else's and probably a good thing too, consider the issue
>> of derived types, the vote was N-1 to get rid of them in
>> Ada 83, but the 1 was JDI, so they stayed :-)
>
>Funny you should characterize the inclusion of derived types as "a
good
>thing."  Without them, Ada83 would have been simpler (yes?).
Ada would also have been simpler without tasking, user defined types,
overloading, generics...
(Do I need a smiley here?)

>Derived types are not an aspect of the language understood by most
>working Ada(83) programmers anyway.  (Although that's probably less
>true today, now that derivation is the mechanism for type extension.)

Derived types are a fundamental aspect of the language. If your
statement that most Ada programmers do not understand them is true, it
means that most Ada programmers are not well trained.
---------------------------------------------------------
           J-P. Rosen (Rosen.Adalog@wanadoo.fr)
Visit Adalog's web site at http://perso.wanadoo.fr/adalog