ATOMIC_SIZE_CAS 84 ruby_atomic.h # define ATOMIC_SIZE_CAS(var, oldval, newval) InterlockedCompareExchange64(&(var), (newval), (oldval)) ATOMIC_SIZE_CAS 110 ruby_atomic.h # define ATOMIC_SIZE_CAS(var, oldval, val) atomic_cas_ulong(&(var), (oldval), (val)) ATOMIC_SIZE_CAS 156 ruby_atomic.h # define ATOMIC_SIZE_CAS(var, oldval, val) ATOMIC_CAS(var, oldval, val)