| #include <stdatomic.h> | |
| void memory_barrier (void) { atomic_thread_fence (memory_order_acq_rel); } | |
| int atomic_add (atomic_int *i) { return atomic_fetch_add_explicit (i, 1, memory_order_relaxed); } | |
| int mutex_trylock (atomic_flag *m) { return atomic_flag_test_and_set_explicit (m, memory_order_acquire); } | |
| void mutex_unlock (atomic_flag *m) { atomic_flag_clear_explicit (m, memory_order_release); } | |
| int main(void) { return 0;} |