c++ terminate called without an active exception producer/consumer

std::thread - “terminate called without an active exception”, don't want to 'join' it

30.3.1.3 thread destructor [thread.thread.destr]

~thread();

If joinable() then terminate(), otherwise no effects. [ Note: Either implicitly detaching or joining ajoinable() thread in its destructor could result in difficult to debug correctness (for detach) or performance (for join) bugs encountered only when an exception is raised. Thus the programmer must ensure that the destructor is never executed while the thread is still joinable. — end note ]

What this means is that you should not let threads go out of scope without first calling either join() ordetatch().

Concept of producer/consumer
http://stackoverflow.com/questions/7381757/c-terminate-called-without-an-active-exception-producer-consumer