New Lagged Fib. PRNG gen and random2.d

[monarch_dodra]

On Thursday, 29 August 2013 at 10:16:17 UTC, Joseph Rushton 
Wakeling wrote:
> On 29/08/13 08:45, monarch_dodra wrote:
>> Yes, that'd be the idea, but I mean that if you do that, you 
>> close the door to
>> giving straight access to a struct-implementation.
>
> Understood, but I'm not sure that's as big an issue as you 
> think.  I exchanged some private emails with Manu and with Adam 
> Ruppe, on how RNGs-as-final-classes might play with games or 
> embedded programming, and I think the consensus was that it 
> wasn't a big deal, so long as all the allocation happened up 
> front.

Alright. Nice to now.

> Adam suggested that e.g. one could avoid GC by allocating 
> memory and using emplace(), so as long as the class is 
> compatible with that approach, it's fine.

This is actually much trickier than it looks. Check out "Scoped".

AFAIK, it is the only type which does this, and it is not 
copyable.