New linked list

[Sean Kelly]

For what it's worth, I've been following a derailed thread on 
comp.lang.c++.moderated where Walter has been discussing foreach (curse 
the long Google Groups links):

http://groups.google.com/group/comp.lang.c++.moderated/browse_frm/thread/d6695737a74e1853/33810ced7bb0924c

It makes complete sense that the data structure should be considered the 
loop invariant in foreach and so this may be a lost cause, but I don't 
want to give up on it without a bit more research, mostly because the 
design of foreach is so useful that I very much prefer it over the 
alternatives from a semantic perspective.  If there is a way that 
optimizations of foreach could be made more flexible without 
compromising its design intent then fantastic.  If not... well, who knows.


Sean