ref: 2450db511ea8911e52168e3a5f895a89e963dc57
dir: /atomics9.h/
long atomic_fetch_add(long *i, long v); long atomic_fetch_sub(long *i, long v); long atomic_fetch_and(long *i, long v); long atomic_fetch_or(long *i, long v); long atomic_fetch_xor(long *i, long v); long atomic_exchange(long *i, long v);