id summary reporter owner description type status milestone component version severity resolution keywords cc 3975 Incorrect precondition for promise::set_wait_callback() Jonathan Wakely viboes "The documented preconditions for promise::set_wait_callback() say: ""The expression f(t) where t is a lvalue of type boost::packaged_task shall be well-formed."" That should say boost::promise, not boost::packaged_task. (btw wait callbacks are a very nice feature!) " Patches closed Boost 1.49.0 thread Boost 1.42.0 Problem fixed viboes