Re: [Boost-users] [proto]: Adding functions to the lazy vector example

How is your INC function any different than pre-increment? If it's no different, you could just do this:

proto::make_exprproto::tag::pre_inc const INC = {};

Its the same. But I want to know the mechanism to add any new function working on the vectors. That can be INC or can be anything else. The question is how can I add any function without adding something to the class vector.