D const design rationale

[Myron Alexander]

Walter Bright wrote:
> http://www.digitalmars.com/d/const.html

Hello Walter.

Thanks, a very interesting read. I think the only missing element is a 
discussion, and example, of the invariant keyword, and how it differs 
from const. I know you have it explained in this page 
(http://www.digitalmars.com/d/final-const-invariant.html) but since you 
mention final, and in the C++ portion you talk about the problems with 
C++ const that are solved by invariant but not const, then I believe it 
should be added to show how the "constness" hole is close.

Regards,

Myron.