id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
6672	upgrade_lock:: missing constructors from time related types	viboes	viboes	"The constructors


{{{
    template <class Clock, class Duration>
    upgrade_lock(Mutex& mtx, const chrono::time_point<Clock, Duration>& t);
    template <class Rep, class Period>
    upgrade_lock(Mutex& mtx, const chrono::duration<Rep, Period>& d);
}}}

should be added to upgrade_lock to be coherent with unique_lock and shared_lock."	Feature Requests	closed	Boost 1.50.0	thread	Boost 1.49.0	Problem	fixed