Den 07-04-2011 11:37, Mathias Gaunard skrev:

On 06/04/2011 19:55, Thorsten Ottosen wrote:

...

I suggest the syntax

rngOfContainers | boost::adaptors::flattened

and the underlying iterator should be up to bidirectional (if the underlying two container types support it).

Anyone interested in implementing this?

I have an implementation of this somewhere.

One annoying thing is that you cannot detect that a type is a range reliably.

Well, that is only a problem if you want to avoid manually applying the adaptor twice (or more), right? If so, I think that is a limitation we can live with. A simple solution covers most cases IMO. -Thorsten