* enh: > no, because the C library has two choices when a thread exits: > > 1. unmap the thread. > > 2. keep the thread around for recycling. > > if you choose 1 (optimizing for space, like Android), your dereference > is illegal. This choice is only available for threads in a detached state. For joinable threads, a conforming implementation cannot immediately deallocate all data structures on thread termination. Among other things, it has to store the future return value of pthread_join somewhere.
