[static] [shared] [const|immutable]

[Lionello Lunesu]

BCS wrote:
> Hello Lionello,
> 
>> "Christopher Wright" <dhasenan at gmail.com> wrote in message
>>
>>> The point of a shared local variable is to pass it to another thread
>>> or set of threads, which will then be able to mutate it without
>>> trouble.
>>>
>> As before, how can an int (value type) on the stack ever be shared
>> with another thread? It would always have to be copied... Can you give
>> me an example please?
>>
> 
> // without lookin up the details of threading
> 
> void main()
> {
>    int i;
>    with(new Thread({i++;}))
>    {
>       Start();
>       Wait();
>    }
> }

:O Indeed, that works! Which is scary, since the compiler did not detect 
the access to 'i' from another thread. In this case the code is safe, 
but only because of the Wait/join at the end..

This looks like a hole in the shared/tls system and there's nothing the 
compiler can do about it. :(

L.