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From: Jay Martin <jaymmartin@earthlink.net>
Subject: Re: Why C++ is successful
Date: 1998/08/02
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Date: 1998-08-02T00:00:00+00:00
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Matthew Heaney wrote:
> 
> Jay Martin <jaymmartin@earthlink.net> writes:
> 
> > Look at the Ada Booch components, not a single "free" in the whole
> > library.  Surely, he Booch was expecting GC.
> 
> This is incorrect.

Booch did expect GC:

"Unmanaged -> Automatic garbage collection is the responsibility
of the underlying run time system and compiler."

> His reason for not using Free is NOT because he was "expecting GC."  He
> explains in his book that he didn't use Unchecked_Deallocation because
> it is non-portable.

Which turned out to be a technical mistake, because 
I didn't remember a (non-embedded system) Ada compiler that did
not implement "Unchecked_Deallocation".   Imagine
the ridicule from C programmers: "You can call malloc
but you can't even call free!."
 
> The Booch components had a very specific taxonomy.  Only "unmanaged"
> components expect a garbage collector.  The "managed" forms do their own
> garbage collection (using a storage manager, another component).

Which excepting multi-tasking and fixed sized forms, made up for
roughly half the Booch components, over a 100
component permutation banking on GC.

Jay