what if thread terminated after the thread::joinable() test

[C++ Programming]

End Google Ads 201810 - BS.net 01 --> havnig see a lot sample codes about c++11 thread like

// thread t;

if(t.joinable()){
t.join()
}

is it possible that t terminate after the if(...) test,which will result in a error when call t.join() , especially in the context of concurrency


appreciate for reading