On Tue, 2007-10-30 at 12:08 -0500, Edgar Friendly wrote:
> Brian Hurt wrote:
> > Chung-chieh Shan wrote:
> > 
> >> Any tips on how (and perhaps how not) to teach functors? 

The problem teaching functors is that the essential feature
of functors is missing -- a functor is a structure preserving
map but there's no way to specify any structure other than
in comments.


-- 
John Skaller <skaller at users dot sf dot net>
Felix, successor to C++: http://felix.sf.net