Mutable enums

[so]

On Mon, 14 Nov 2011 10:27:21 +0200, Timon Gehr <timon.gehr at gmx.ch> wrote:

> It is the right design. Why should enum imply const or immutable? (or  
> inout, for that matter). They are completely orthogonal.
>
> enum Enum{
>      opt1,
>      opt2,
> }
>
> void main(){
>      auto moo = Enum.opt1;
>      moo = Enum.opt2; // who would seriously want an error here???
> }

You are missing the point, nobody asked that. You are assigning it to  
auto, a runtime variable.
Which was asked was about modifying a constant, sort(a) means sort a  
in-place. So you cant do:

immutable a;
sort(a);

But with current design you can do:

enum a;
sort(a);

Which is to me, quite wrong.