Bummer that they didn't hold the event in Zurich – maybe I would have managed to sneak in… ;) On Thursday, 20 September 2012 at 12:56:44 UTC, Andrei Alexandrescu wrote: > http://laser.inf.ethz.ch/2012/slides/Alexandrescu/2-D%20course%20parts%201%20and%202.pdf The code on slide 6 contains an issue resp. inaccuracy: Not all random access ranges are sliceable. Sometimes I wonder (and this is not at all intended as a snide remark!) if it is too easy to make mistakes regarding template constraints, if even you as the (co-?) designer of std.range get them wrong occasionally. David