b.Run(fmt.Sprintf("%d/%d", 1<<j, k), func(b *testing.B) {
				for i := 0; i < b.N; i++ {
					Repeat(s, n)
				}
				b.SetBytes(int64(n * len(s)))
			})
		}
	}
}

func BenchmarkRepeatSpaces(b *testing.B) {
	b.ReportAllocs()
	for i := 0; i < b.N; i++ {
		Repeat(" ", 2)
	}
}

func BenchmarkIndexAnyASCII(b *testing.B) {
	x := Repeat("#", 2048) // Never matches set