[v3] libstdc++/16612

[Benjamin Kosnik]

>Today, while being out of town, I had the time to study this proposal
>in some detail: seems absolutely feasible, actually. I'm now working on it and probably
>
>a draft will
>be ready in 1-2 days. I expect a slight slow-down of the empty string 
>constructor but good performance in all the other cases.

Sounds great. Avoiding a performance slowdown is preferred, I agree.

My the force by with you!

;)

-benjamin