dsimcha:

> Here's a first draft of an article on D's approaches to concurrency and 
> parallelism for D's article contest.  It's not an official submission 
> yet, but feedback would be appreciated.
> 
> http://davesdprogramming.wordpress.com/2011/04/07/7/

I have given a first quick read to your article, later I will read it again 
better. Thank you for the article, that's also an explanation of your 
parallelism module.

>Unless the type system becomes so complex that computer science Ph.Ds can’t 
>wrap their heads around it or<

I am not sure of this.


>It might generate random numbers from a thread-local random number generator 
>instance.<

This may help:
http://d.puremagic.com/issues/show_bug.cgi?id=5249


>It might really be pure but not marked as such because the discipline required 
>to recursively mark it and all functions it calls pure doesn’t scale much 
>better than any other form of discipline in programming.<

If an important module of Phobos as yours doesn't want to or can't use one 
important feature of D2, like pure annotations, then it may mean the feature 
isn't well implemented yet, or the design of this part of D2 has failed.

Bye,
bearophile

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