improvement request - enabling by-value-containers

[bearophile]

Michel Fortin:

> I have to echo a similar concern with by-reference containers from my 
> experience of Cocoa. It's really too easy to have two references to the 
> same container without realizing it.

A partial (but maybe better) solution to this problem is to introduce "linear types" in D, ad then let the compiler allocate a container on the stack as an automatic optimization where possible:
http://en.wikipedia.org/wiki/Linear_types

Bye,
bearophile