1st draft of complete class-based std.random successor

[Chris Williams]

On Wednesday, 19 March 2014 at 23:49:41 UTC, Joseph Rushton 
Wakeling wrote:
> Hello all,
>
> As some of you may already know, monarch_dodra and I have spent 
> quite a lot of time over the last year discussing the state of 
> std.random.  To cut a long story short, there are significant 
> problems that arise because the current RNGs are value types 
> rather than reference types.

Any chance that you could describe them? I was about to resume 
porting the dcrypt library into Phobos, and had intended to flip 
the classes into structs, to match what the rest of the library 
was doing.