Extended Type Design.

[Andrei Alexandrescu (See Website For Email)]

Bill Baxter wrote:
> Andrei Alexandrescu (See Website For Email) wrote:
>> Benji Smith wrote:
> 
>>> I reiterate: "const" and "readonly" are the way to go. (Methods which 
>>> promise not to modify the values of their parameters should use 
>>> "readonly" rather than "const" in their method signatures.)
>>
>> This makes const gratuitously incompatible to C++'s const, and (worse) 
>> also adds a keyword that's its equivalent. I don't think this can fly.
> 
> What about 'immutable' for 'really can't change'/'superconst', and const 
> can stay as is?

I like it, and suggested it at a point. Walter said that it's bad 
marketing to define keywords in terms of a negative.

Andrei