id summary reporter owner description type status milestone component version severity resolution keywords cc 8474 Make Boost.xpressive compatible with Clang's -Wimplicit-fallthrough diagnostic. Alexander Kornienko Eric Niebler Patch that inserts BOOST_FALLTHROUGH to annotate fallthrough between switch cases. Ticket with discussion of BOOST_FALLTHROUGH: #8408 Patches closed To Be Determined xpressive Boost 1.52.0 Problem fixed John Maddock