The thread_dev branch in CVS contains a barrier class that I would like to move to the main branch, as has recently been requested by more than one Booster. Is anyone aware of any problems that should be addressed before this happens? For reference, see thread.hpp, http://cvs.sourceforge.net/viewcvs.py/*checkout*/boost/boost/boost/thread/Attic/barrier.hpp?content-type=text%2Fplain&rev=1.1.4.3 and thread.cpp, http://cvs.sourceforge.net/viewcvs.py/*checkout*/boost/boost/libs/thread/src/Attic/barrier.cpp?content-type=text%2Fplain&rev=1.1.4.2 One potential problem that I am aware of is that it is possible for the m_generation counter (see barrier.cpp) to overflow on systems that detect overflow of integer addition instead of wrapping (I assume there are such systems though I've never used one). Is it worthwhile checking for this and forcing wrapping in code? Mike