Workarounds for Lack of Mutable Keyword

[Craig Black]

"Janice Caron" <caron800 at googlemail.com> wrote in message 
news:mailman.301.1207206839.2351.digitalmars-d at puremagic.com...
> On 03/04/2008, Craig Black <craigblack2 at cox.net> wrote:
>>  void ConstAssign(T)(ref const T x, T y) { *cast(T*)&x = y; }
>
> One problem with this function is demonstrated by
>
>    string s = "hello world";
>
>    ConstAssign(h[0],'j');
>
> Oops - it assigns invariants too! Even if you can be sure there are no
> other threads vying for access to s, still, those chars might be in a
> hardware-locked ROM segment.
>
> There's a reason why casting away const is not defined.

If that compiles, I think it may be a bug.  Invariant types shouldn't be 
implicitly convertible to const.

-Craig