Hi, before I put it in the vault, I would like to hear from you guys what you think about the attached code. What is it about? A few days back, I asked for support for writing an iterator which merges sorted iterators. Andrew Bromage came up with some very good hints, asking me to publish my variant if I should come up with something nice. Well, attached is what I came up with (including a very simple usage example). Any feedback would be appreciated (including on how and where exactly to put it in the vault and if it would be welcome there :-) ). Thanks and regards, Roland