More radical ideas about gc and reference counting

[Rainer Schuetze via Digitalmars-d]

On 12.05.2014 13:53, "Marc Schütz" <schuetzm at gmx.net>" wrote:
>
> I'm surprised that you didn't include:
>
> 3. Thread-local GC, isolated zones (restricting where references to
> objects of a particular heap can be placed), exempting certain threads
> from GC completely, ...

This comes up from time to time, but to me it is very blurry how this 
can work in reality.

Considering how "shared" is supposed to be used to be useful (do some 
locking, then cast away "shared") there is no guarantee by the language 
that any object is actually thread local (no references from other 
threads). Working with immutable (e.g. strings) is shared by design.