Sharing in D

[Robert Fraser]

Walter Bright Wrote:

> http://www.reddit.com/comments/6u7k0/sharing_in_d/

WANT. It would be very useful for certain applications. However, I'm 
worried that this may perhaps add even more complexity to an already 
stretched type system.

How about making the less safe alternative (shared/unchecked) the 
default (so current programs keep working the way they already do) and 
people who want the additional compelxity and overhead use unshared 
explicitly (just as const/invariant is not the default and people need to 
explicitly  say that).