public static int test_0_simple_packed_addsub () { Vector4f a = new Vector4f (5, 2, 6, 1); Vector4f b = new Vector4f (7, 0, 8, 3); Vector4f c = a.AddSub (b); if (c.X != -2f) return 1; if (c.Y != 2f) return 2; if (c.Z != -2f) return 3; if (c.W != 4f) return 4; return 0; }