Steven Kirk wrote:

>  Hello all,
> 
>  I've just uploaded a file, poly_iterator.zip to the boost file area. I'm not
>  sure how useful people will consider it to be, but it helps considerably
>  with a problem that I keep encountering.
> 

skipping

> 
>  Does that make sense? An example may make this a little clearer. This is

It makes very much sense.

> 
>  test.cpp, included in the zip file:
> 
>  Is this of any use? How will I improve it? (there's a lot to be done I know)
> 

I've just uploaded a bridge_iter.zip file which, I think, does something
similar. I hope you could use it to get some ideas and maybe merge
the best of both implementations into a better poly_iterator.

Good luck.