Hi all, Back in January last year, I asked if there was any documentation which could help me to Boostify GluCat: http://lists.boost.org/MailArchives/boost-users/msg02787.php Since then I have been very busy, but in the next few months I may be able to find the time to get this done right, so I'm asking again: GluCat is a new numeric template class library, hopefully destined for promotion to Boost. I would like to know where there is some documentation on how to: 1. Add concepts. Is there such a thing as a non-commutative multiplication concept? How do I check concepts? 2. Add numeric limits. Limits of U<T> would default to limits of T. 3. Add numeric promotion_traits. What are promotion_traits ? There is a discussion on ublas-dev mailing list about promotion_traits within uBLAS. 4. Add numeric type_traits. Also, is there a set of documented procedures which explain what is required for a library to be included in Boost? GluCat uses uBLAS. Should I take these questions to ublas-dev? Thanks