Why D const is annoying

[Timon Gehr]

On 12/10/2011 12:10 PM, Mehrdad wrote:
> On 12/10/2011 3:08 AM, bearophile wrote:
>> Timon Gehr:
>>
>>> No, popFront is mutating and const(int[]) cannot be mutated.
>> So, is it impossible by design to iterate immutable collections?
>>
>> Bye,
>> bearophile
>
> I believe the answer is yes (although Timon would probably know better).

You can always have a mutable range over the immutable collection contents.

>
> That's one reason I believe const is broken...

Well, you are essentially complaining about the fact that 
const/immutable variables cannot be changed. I believe that very likely 
this is the point of having them. If you want to mutate a variable don't 
make its type const or immutable.