Hi, Multi_array is a really excellent piece of software. However, as I find myself using it as a simple xD-container it's a bit odd at times. I would very much like a smart swap operation to avoid doing resize & assign. Also, I don't fully understand the argument on genericity, but I haven't not worked with generic array algorithms. I do feel that having a STL-like behaviour is important. The suggestion on an additional template param would work (albeit, IMHO, it seems to be a bit hackish) but I would rather have that behaviour as default, because I and some others I know mostly use it as a very convenient xD-array with stl-properties. I was struggling a bit with swap/assignment, and found this discussion http://lists.boost.org/boost-users/2007/02/25243.php. It doesnt' seem to continue after that e-mail? Any progress/thoughts beyong that? I also agree with point 2 in this posting http://lists.boost.org/boost-users/2007/02/25576.php, which is something we've found lacking at a few times. Cheers, /Marcus