public static int test_0_simple_packed_hsub () { Vector4f a = new Vector4f (5, 2, 6, 1); Vector4f b = new Vector4f (7, 0, 8, 3); Vector4f c = a.HorizontalSub (b); if (c.X != 3f) return 1; if (c.Y != 5f) return 2; if (c.Z != 7f) return 3; if (c.W != 5f) return 4; return 0; }