return castagnoli.Sum32()
		})
	}
}

func BenchmarkCRC32(b *testing.B) {
	b.Run("poly=IEEE", benchmarkAll(NewIEEE()))
	b.Run("poly=Castagnoli", benchmarkAll(New(MakeTable(Castagnoli))))
	b.Run("poly=Koopman", benchmarkAll(New(MakeTable(Koopman))))
}

func benchmarkAll(h hash.Hash32) func(b *testing.B) {
	return func(b *testing.B) {
		for _, size := range []int{15, 40, 512, 1 << 10, 4 << 10, 32 << 10} {