id summary reporter owner description type status milestone component version severity resolution keywords cc 6974 boost::optional compilation error with boost::function and boost::fusion::vector Jonathan Jones Fernando Cacciola "If you compile the following on g++ 4.4.5, it will fail to compile because the optional_base copy constructor and destructor are protected. boost::optional< boost::fusion::vector1 > > A duplication program is attached." Bugs new To Be Determined optional Boost 1.49.0 Problem