id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
7575	"c++11 compliance: A future created by async should ""join"" in the destructor"	Andrzej Krzemienski <akrzemi1@…>	viboes	"The C++ Standard requires (Section 3.6.8, Paragraph 5) in cases where std::async() creates a future and no explicit waiting function is called for the future, that ""the associated thread completion synchronizes with [...] with the return from the last function that releases the shared state [...]"".

This effectively means that destructor of such future must wait until the associated thread finishes. This requirement makes std::async() a tool that behaves like RAII classes: it binds the resource (the associated thread) with the life-time of the future object.

Boost.Thread should follow the same behavior for futures created with async (when called with parameter launch::async)."	Feature Requests	closed	Boost 1.53.0	thread	Boost 1.52.0	Problem	fixed	async future block	viboes