ATOMIC_SIZE_EXCHANGE 6190 gc.c           	size_t inc = ATOMIC_SIZE_EXCHANGE(malloc_increase, 0);
ATOMIC_SIZE_EXCHANGE  152 ruby_atomic.h  #ifndef ATOMIC_SIZE_EXCHANGE
ATOMIC_SIZE_EXCHANGE  177 ruby_atomic.h  #   define ATOMIC_PTR_EXCHANGE(var, val) (void *)ATOMIC_SIZE_EXCHANGE(*(size_t *)&(var), (size_t)(val))
ATOMIC_SIZE_EXCHANGE  206 ruby_atomic.h  #   define ATOMIC_VALUE_EXCHANGE(var, val) ATOMIC_SIZE_EXCHANGE(*(size_t *)&(var), (size_t)(val))