func sync/atomic.SwapInt32

3 uses

	sync/atomic (current package)
		doc.go#L66: func SwapInt32(addr *int32, new int32) (old int32)
		type.go#L80: func (x *Int32) Swap(new int32) (old int32) { return SwapInt32(&x.v, new) }

	go.uber.org/atomic
		int32.go#L87: 	return atomic.SwapInt32(&i.v, val)