automatic conversion to invariant (string?)

[Janice Caron]

On 20/03/2008, Yossarian <xtauer01 at stud.fit.vutbr.cz> wrote:
>  wouldn't
>  this 'downcast' be logical?'

No. Example:

    char[] s = cast(char[]) "hello";
    string t = s;
    s[0] = 'j';

There's a good reason why that won't compile!

Both mutable and invariant will downcast to const, so from const to
either mutable or invariant is an upcast. That makes going from
mutable to invariant a "sideways cast"