Congratulations to the D Team!

[Max Samukha]

On Wednesday, 11 July 2012 at 12:39:03 UTC, Andrei Alexandrescu 
wrote:

>
> I gave evidence on a large, high quality C++ codebase that the 
> use of mutable (which is the solution of choice for 
> memoization, caching, and lazy computation) is extremely scarce.
>
> What evidence do you have for your prediction?
>
>
> Andrei

Qt codebase (large, high quality) has around 1500 'mutable' 
keyword occurrences. The actual number of mutable declarations 
must be lower, but they are quite common. 'Extremely scarce' 
obviously does not apply there. Also, the ratio of occurrences of 
mutable vs const keywords is not a good metric for estimating 
logical const prevalence.