Maybe I am just going nuts but the mpl doc links on the website seem to be broken. http://www.boost.org/libs/libraries.htm contains a link to: http://www.boost.org/libs/mpl/doc/index.html This document seems to be outdated and all the links in this document seem to be broken. The following url seems to point to the current docs http://www.boost.org/libs/mpl/doc I am lost Thomas -- Thomas Witt witt@acm.org