.

wcfs/δbtail_test.go

@@ -337,7 +337,7 @@ func IntSets(N int) chan []int {
 
 // intSets generates all sets of integers in range [lo,hi)
 func intSets(ch chan []int, lo, hi int) {
-	ch <- []int{}   // ø
+	ch <- nil // ø
 
 	if lo < hi {
 		for i := lo; i < hi; i++ {