On 07/23/2012 10:21 AM, Enerqi wrote:
> Hi
>
> I'm wondering what the state of the language/libraries are with regard
> to shared/immutable qualifiers. I've tried to use std.concurrency and
> had a lot of compile issues passing shared data around.
> Even a simple case I'm finding issue with:
>
> ---------
> import std.array;
>
> int main(string[] argv)
> {
> shared uint[] arr = stuffone();
> return 0;
> }
>
> shared uint[] stuffone()
Hmmm... I think that's a bug. It should be the equivalent of the
following, which does work:
shared(uint[]) stuffone()
{
shared uint[] arr = new shared (uint[1]);
arr[0] = 1;
return arr;
}
Note that no need to cast returned object any more.
> Another case I couldn't construct an appender to shared data:
> ---------
> import std.array;
>
> int main(string[] argv)
> {
> Appender!(shared uint[]) app = std.array.appender!(shared uint[]);
> return 0;
> }
> ---------
> Compile error:
>
> Error: incompatible types for ((cast(shared(uint)*)arr) is
> (cast(uint*)(*this._data).arr)): 'shared(uint)*' and 'uint*'
> shared.d(6):
Appender does cast(Unqual!(T)) which removes the 'shared' qualifier. I
think that should be considered a bug with Appender.
Ali
