const challenge

[Sergey Gromov]

Janice Caron Wrote:
> > So the only way to return a unique result from a function is to dup
> > or new or inline-construct directly within its return statement.  Other
> > return values are illegal.
> 
> Good point. It should have been
> 
>     return cast(unique)s;

The possibility to cast should still be there for complex cases where you
can't/don't want to put data allocation into return statement but can
guarantee its uniqueness.

SnakE