Exemplo n.º 1
0
func TestBigIntAnd(t *testing.T) {
	found := bigIntAnd([][]byte{common.EncodeBigInt(big.NewInt(1))}, [][]byte{common.EncodeBigInt(big.NewInt(2)), common.EncodeBigInt(big.NewInt(3)), common.EncodeBigInt(big.NewInt(4))}, 1)
	expected := [][]byte{common.EncodeBigInt(big.NewInt(0))}
	if !reflect.DeepEqual(found, expected) {
		t.Errorf("%v should be %v", fmt.Sprint(common.DecodeBigInt(found[0])), fmt.Sprint(common.DecodeBigInt(expected[0])))
	}
	found = bigIntAnd([][]byte{common.EncodeBigInt(big.NewInt(1)), common.EncodeBigInt(big.NewInt(3))}, [][]byte{common.EncodeBigInt(big.NewInt(3)), common.EncodeBigInt(big.NewInt(5))}, 1)
	expected = [][]byte{common.EncodeBigInt(big.NewInt(1))}
	if !reflect.DeepEqual(found, expected) {
		t.Errorf("%v should be %v", fmt.Sprint(common.DecodeBigInt(found[0])), fmt.Sprint(common.DecodeBigInt(expected[0])))
	}
	found = bigIntAnd(nil, [][]byte{common.EncodeBigInt(big.NewInt(1)), common.EncodeBigInt(big.NewInt(2)), common.EncodeBigInt(big.NewInt(3)), common.EncodeBigInt(big.NewInt(4))}, 1)
	expected = [][]byte{common.EncodeBigInt(big.NewInt(0))}
	if !reflect.DeepEqual(found, expected) {
		t.Errorf("%v should be %v", fmt.Sprint(common.DecodeBigInt(found[0])), fmt.Sprint(common.DecodeBigInt(expected[0])))
	}
	found = bigIntAnd(nil, [][]byte{common.EncodeBigInt(big.NewInt(1)), common.EncodeBigInt(big.NewInt(3)), common.EncodeBigInt(big.NewInt(3)), common.EncodeBigInt(big.NewInt(5))}, 1)
	expected = [][]byte{common.EncodeBigInt(big.NewInt(1))}
	if !reflect.DeepEqual(found, expected) {
		t.Errorf("%v should be %v", fmt.Sprint(common.DecodeBigInt(found[0])), fmt.Sprint(common.DecodeBigInt(expected[0])))
	}
	found = bigIntAnd([][]byte{common.EncodeBigInt(big.NewInt(15))}, [][]byte{common.EncodeBigInt(big.NewInt(3))}, 2)
	expected = [][]byte{common.EncodeBigInt(big.NewInt(6))}
	if !reflect.DeepEqual(found, expected) {
		t.Errorf("%v should be %v", fmt.Sprint(common.DecodeBigInt(found[0])), fmt.Sprint(common.DecodeBigInt(expected[0])))
	}
}
Exemplo n.º 2
0
Arquivo: merges.go Projeto: baeeq/god
func bigIntMul(oldValues [][]byte, newValues [][]byte, w float64) (result [][]byte) {
	sum := big.NewInt(1)
	for _, b := range oldValues {
		sum.Mul(sum, common.DecodeBigInt(b))
	}
	for _, b := range newValues {
		sum.Mul(sum, new(big.Int).Mul(common.DecodeBigInt(b), big.NewInt(int64(w))))
	}
	return [][]byte{sum.Bytes()}
}
Exemplo n.º 3
0
Arquivo: merges.go Projeto: baeeq/god
func bigIntXor(oldValues [][]byte, newValues [][]byte, w float64) (result [][]byte) {
	var sum *big.Int
	if oldValues != nil {
		sum = new(big.Int).SetBytes(oldValues[0])
		for _, b := range newValues {
			sum.Xor(sum, new(big.Int).Mul(common.DecodeBigInt(b), big.NewInt(int64(w))))
		}
	} else {
		sum = new(big.Int).Mul(new(big.Int).SetBytes(newValues[0]), big.NewInt(int64(w)))
		for _, b := range newValues[1:] {
			sum.Xor(sum, new(big.Int).Mul(common.DecodeBigInt(b), big.NewInt(int64(w))))
		}
	}
	return [][]byte{sum.Bytes()}
}
Exemplo n.º 4
0
func decode(b []byte) string {
	switch *enc {
	case stringFormat:
		return string(b)
	case floatFormat:
		res, err := common.DecodeFloat64(b)
		if err != nil {
			return fmt.Sprint(b)
		}
		return fmt.Sprint(res)
	case intFormat:
		res, err := common.DecodeInt64(b)
		if err != nil {
			return fmt.Sprint(b)
		}
		return fmt.Sprint(res)
	case bigFormat:
		return fmt.Sprint(common.DecodeBigInt(b))
	}
	panic(fmt.Errorf("Unknown encoding: %v", *enc))
}