writing iterators without code duplication. inout?

[Jakob Ovrum]

On Wednesday, 21 December 2011 at 16:31:01 UTC, Jakob Ovrum wrote:
> On Wednesday, 21 December 2011 at 16:07:55 UTC, Timon Gehr 
> wrote:
>> Just remove the non-const overload. const member functions 
>> work with mutable, immutable and const receivers.
>
> The const version does not allow using 'ref' when iterating.

In light of pompei2's recent reply;

the const version *should not* allow using 'ref' when iterating.