z2 := slices.Clone(z) var y uint y-- c := addMulVVW(z, x, y) c2 := test.f(&z2[0], &x[0], y) if !slices.Equal(z, z2) || c != c2 { t.Errorf("%016X, %016X != %016X, %016X", z, c, z2, c2) } }) } } func TestInverse(t *testing.T) { f, err := os.Open("testdata/mod_inv_tests.txt") if err != nil { t.Fatal(err) } var ModInv, A, M string var lineNum int scanner := bufio.NewScanner(f) for scanner.Scan() { lineNum++ line := scanner.Text() if len(line) == 0 || line[0] == '#' { continue } k, v, _ := strings.Cut(line,...