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  3. June 2008

Re: the advantages of garbage collection

On Mon, Jun 23, 2008 at 1:38 PM, David Gibbs <david@xxxxxxxxxxxx> wrote:

I maybe wrong here (please correct me if I am) ... but GC is *NOT* a
mandatory function of an object oriented execution environment.

I agree. C++ is certainly an OOP language, and it does not have a built in GC.

I
_think_ GC is used in Java because it's an interpretive language and
freeing memory occupied by unused objects is fairly expensive. GC would
not be necessary in Java if the memory could be freed as soon as the
object reference was removed.

from the MSFT material I have read, reference counting was found to be
slow. Better, when you run out of memory, to inventory all the
references which are still in use, then destroy and free up the
remaining unused objects.

The fact that impresses me is that since the arrival of Java and C#,
the interest in C++ has plummeted. The only substantial difference
between C++ and C# is C# is a GC based language.

-Steve

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