Alex, Alex Chovanec wrote:
I realize that this isn't the best time for proposals, what with everyone trying to get the next release of boost out, but I have an idea for a new iterator adaptor which I'd like to propose.
Consider an adapted iterator type Iter with base iterator type Base that has the following traits:
typedef Base value_type; typedef const Base & reference;
When you dereference an instance of the adapted iterator type Iter, you get a const reference to its base iterator of type Base. So instead of delegating the dereference operation to its base and returning the result, the iterator adaptor simply returns its base. Since it doesn't dereference its base, I would probably name it "lazy_iterator", or something like that.
IIUC it's currently named counting_iterator. I.e. the main point of counting_iterator isn't the counting but the non-dereferencing. Where does your idea differ from counting_iterator? Thomas -- Thomas Witt witt@acm.org