{
thrd_t t1, t2;
atomic_init(&mylock.lock, RW_LOCK_BIAS);
thrd_create(&t1, (thrd_start_t)&a, NULL);
thrd_create(&t2, (thrd_start_t)&a, NULL);
{
thrd_t t1, t2;
atomic_init(&mylock.lock, RW_LOCK_BIAS);
thrd_create(&t1, (thrd_start_t)&a, NULL);
thrd_create(&t2, (thrd_start_t)&a, NULL);