How do I express a mutable reference to a const object in D?

What I want to do is to define a variable, which refers a constant object, but I can change which constant object it is referring. Is this possible?

On Wednesday, 1 July 2015 at 08:30:23 UTC, Yuxuan Shui wrote:
> How do I express a mutable reference to a const object in D?
>
> What I want to do is to define a variable, which refers a constant object, but I can change which constant object it is referring. Is this possible?

I wonder will something like:

class Const(T):
    const(T) inner;
    alias this inner;
}

work?

On Wednesday, 1 July 2015 at 08:33:44 UTC, Yuxuan Shui wrote:
> On Wednesday, 1 July 2015 at 08:30:23 UTC, Yuxuan Shui wrote:
>> How do I express a mutable reference to a const object in D?
>>
>> What I want to do is to define a variable, which refers a constant object, but I can change which constant object it is referring. Is this possible?
>
> I wonder will something like:
>
> class Const(T):
>     const(T) inner;
>     alias this inner;
> }
>
> work?

You want rebindable.

see http://dlang.org/phobos/std_typecons.html