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Date: 13 Aug 91 22:08:14 GMT
From: emery@mitre-bedford.arpa  (David Emery)
Subject: Re: c++ vs ada results
Message-ID: <EMERY.91Aug13150814@Dr_No.mitre.org>
List-Id: <comp.lang.ada>

>Grady Booch converted the Booch Ada Component Library from ADA to C++.
>The result was thaty 150,000 lines of ADA became 20,000 lines of C++. 
Since C++ has no expression of concurrency, I strongly suspect that a
lot of the "code reduction" comes from not having to duplicate all of
the tasking variants of the Booch Components.  

Also, the Booch Components are NOT a complete system.  They're the
type of things (common data structures, etc) where C++ _should_ be
powerful.  That's the easy stuff in an application.  Unfortunately,
real systems tend to have a lot of algorithmic and concurrency stuff
that gets in the way of these kinds of designs, not to mention
large-scale structural and architectural issues.

I think it would be very interesting to compare "systems" and not just
"components".  There's some of that (although you may find the data
suspect because of the source) in the Ada vs C++ study that has
recently come out.

				dave emery
				emery@dr_no.mitre.org