[boost] Five casts added to boost/utility.hpp

From: Beman Dawes (beman_at_[hidden])
Date: 1999-08-11 14:37:54

Five new new-style casts (well, actually template functions that act
like casts) have been added to <boost/utility.hpp> on the web site.

Thanks to Dave Abrahams; he contributed most of the insights to get
these going.

Comments appreciated!

--Beman