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From: mcintyre@cs.rpi.edu (David McIntyre)
Newsgroups: comp.software-eng,comp.lang.pascal
Subject: Re: Borland's Object-Oriented Pascal--is it worth it?
Keywords: borland pascal object oriented
Message-ID: <5534@rpi.edu>
Date: 17 Jun 89 09:21:35 GMT
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Organization: Rensselaer Polytechnic Institute, Troy, NY
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Robert Morey writes:
>
>   [ Robert is worried about upgrade problems to TP 5.5 from 4.0]
>

The upgrade to 5.5 should be almost non-existant.  The change from 5.0
to 5.5 is comprised of 4 new keywords: object, virtual, constructor,
and destructor.

If you don't use the new keywords, there is no difference in the language.

However, the new keywords add some neat C++ish abilities, like dynamic
binding of functions, and more complete encapsulation.

For a really nice introduction to the new abilities of 5.5, check out
Michael Floyd's article "Turbo Pascal with Objects" in the July, 1989
issue of Dr. Dobbs.  It is a very good introduction article.  

I think that I am going to order the update next week.  I am going to
be teaching an advanced-programming/data structures course in August,
and I want to talk about some aspects of objective programming.  I will
give you all a short report about what I think after I give ita chance.

				-Dave


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