func zero16u2_ssa(t *Z16u2) {
	t.val = [16]byte{}
}
func testZero16u(t *testing.T) {
	a := Z16u1{false, [16]byte{255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255}}
	zero16u1_ssa(&a)
	want := Z16u1{false, [16]byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}
	if a != want {
		t.Errorf("zero16u2 got=%v, want %v\n", a, want)
	}