[RFA] Algorithms vs operator* and operator==

[Paolo Carlini]

Matt Austern wrote:

> We're reinventing what Howard Hinnant calls "move semantics".
> If we're going down this route, let's build on his work.

I can only agree, in principle: some time ago I pointed Chris to some 
background literature about "move semantics" ;)

However (comments very appreciated!) I gather that the clean and neat 
and general way to "move semantics" involves compiler support and Chris 
wants something rather simple, for the short/medium term. I'm under the 
impression that the improvement could be rather impressive in some 
cases, without too much added complexity.

Paolo.