David Abrahams writes:
Aleksey Gurtovoy <agurtovoy@meta-comm.com> writes:
I would say transform_iterator should return by value by default and there should be an explicit notation to request by reference semantics (if applicable).
David, any reply on the above? I'd like to come to some kind of resolution on the outlined problem since it is real and hurting.
I don't think there's much danger in transform_iterator itself, is there? Isn't this all in make_transform_iterator?
Yes, it's in the 'make_transform_iterator's current semantics. I should have phrased the above as I would say 'make_transform_iterator' should by default return a 'transform_iterator' which 'operator*' always returns by value and there should be an explicit notation to request by reference semantics (if it's compatible with the transformation function's return type). -- Aleksey Gurtovoy MetaCommunications Engineering