id summary reporter owner description type status milestone component version severity resolution keywords cc 9655 Error for visitors returning a moveable-but-not-copyable object Raffael Casagrande ebf "I noticed that there is an error in boost::variant if one uses the visitor pattern and if the return type of the visitor does not posess a copy constructor but instead a move constructor. I've attached a small sample script that shows this behaviour." Bugs closed To Be Determined variant Boost 1.55.0 Problem fixed rvalue, visitor