An important pull request: accessing shared affix for immutable data

[deadalnix via Digitalmars-d]

On Saturday, 13 February 2016 at 21:10:50 UTC, Andrei 
Alexandrescu wrote:
> There's no need. I'll do the implementation with the prefix, 
> and if you do it with a global hashtable within the same or 
> better speed, my hat is off to you.
>

That is false dichotomy. What about storing the metadata at an 
address that is computable from from the object's address, while 
not being contiguous with the object allocated ? Is substracting 
a constant really the only option here ? (hint, it is not)