Idea for more delegations in <algorithm>

[Paolo Carlini]

Chris Jefferson wrote:

> | Or, for some reason, we have troubles with this too? :(
>
> Unless I'm going mad (possible), default parameters are inserted and
> passed by the compiler (at least on x86), so this will in fact be worse,
> because that "0" will always be created and passed by the compiler
> (because it might be needed for all it knows) whereas the empty classes
> might eventually be optimised away with compiler improvements.

I see, I was afraid that something like that could happen, in principle 
(have never looked myself to the actual way defaults are compiled)

Thanks...
Paolo.