id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
7125	weak_ptr::lock() thread safety	Gennady  Proskurin <gpr@…>	Peter Dimov	"Imagine the following code:

{{{
shared_ptr<T> sp(new ...);
weak_ptr<T> wp(sp);

sp.reset(); // thread A
shared_ptr<T> sp1 = wp.lock(); // thread B
}}}

It is not clear from documentation, whether it is safe to call shared_ptr::reset() and weak_ptr::lock() concurrently in different threads. It is very frequently asked question and should be documented explicitly.
"	Feature Requests	new	To Be Determined	smart_ptr	Boost 1.50.0	Problem