David A. Black <dblack / wobblini.net> wrote:
> > #
> > # For those times you need an extra level of indirection.
> 
> Can someone give me an example of such a time?  I'm still not seeing
> it.  (I mean, I get what these things are doing, just not where one
> would want to do them.)

You could have data structures where every member effectively has a
replace() method.

martin