The constness problem

[Peter Alexander via Digitalmars-d]

http://pointersgonewild.wordpress.com/2014/07/11/the-constness-problem/

I can relate to this. I don't use classes much in D, but I find 
it frustrating that you need to reach to std.typecons.Rebindable 
for what I would consider to be a more common usage of const with 
classes.

I really feel that a mutable reference to a const object should 
be expressible in the core language.