id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
8068	Bad Memory Access in boost::future<>.then() after accessing given future	Stephan Mehlhase <s.mehlhase@…>	viboes	"When using ""then"" on a future and accessing the value of the future in the continuation, the memory of the future is freed/released and the further execution of the continuation happens in an undefined limbo state (leading to a crash with EXC_BAC_ACCESS at least on iOS. 

Here is a minimal example:
{{{
#define BOOST_THREAD_VERSION 4
#include <boost/thread.hpp>

class Test {

public:
    void test() {
        boost::shared_ptr<Test> listener(new Test());
        boost::future<bool> con = boost::make_future(true);
        listener->foo(); // Works
        boost::future<bool> initDone = con.then([listener](boost::future<bool>& connected) {
            listener->foo(); // Works
            if (!connected.get()) {
                listener->foo();
                return false;
            }
            listener->foo();  // EXC_BAD_ACCESS
            return true;
        });
    }

    void foo() {
        std::cout << ""foo"";
    }
};
}}}



"	Bugs	closed	To Be Determined	thread	Boost 1.53.0	Problem	invalid