------- Additional Comments From chris at bubblescope dot net 2005-08-30 15:35 ------- While this behaviour is suprising, it is also not a bug. The problem comes from the fact that &*(reverse_iterator(i)) = &*(i-1), so when you dereference a reverse_iterator the value you actually get is from the iterator before the one is stored inside the reverse_iterator (I hope that makes sense). That might seem strange, but there are good reasons for it, and it's unavoidable.
in std::map, this causes problems, as the an iterator can be inserted between i and i-1 (as in this case here), making the thing a reverse_iterator points at can change. Personally, I've always considered reverse_iterator a bit of a nasty hack. In this case I'm sure we are correct with respect to the standard, and there really isn't a good way to fix either map or reverse_iterator so this code acts as you expect I'm afraid. -- What |Removed |Added ---------------------------------------------------------------------------- CC| |chris at bubblescope dot net http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23633