Const sucks

[Myron Alexander]

Walter Bright wrote:
> o  tail const of a struct would have to be done by making the struct a 
> template:
> 
>   struct S(T) { T member; }
>   S!(int)   // tail mutable
>   S!(const(int)) // tail const
> 

Walter, how are references handled and can you create a tail const of a 
reference?

Which of the following are correct syntax and how is the "constness" 
defined:

class SomeClass {
   some constructors
   some variables
}

const SomeClass x = new SomeClass ();
SomeClass const(x) = new SomeClass ();
SomeClass x = const new SomeClass ();
SomeClass x = new const SomeClass ();

(anything I missed out?)

How can I create a tail const such that the reference is immutable but 
the public instance variables and public methods are mutable?

What about arrays?

Regards,

Myron.