#[test]
pub fn test_memmove() {
    let mut buffer: [u8;8] = [0, 1, 2, 3, 4, 5, 6, 7];
    let expected:   [u8;8] = [4, 5, 6, 7, 4, 5, 6, 7];
    unsafe { xrt::memmove(buffer.as_mut_ptr(), buffer[4..].as_ptr(), 4); }
    assert_eq!(buffer, expected);

    let mut buffer: [u8;8] = [0, 1, 2, 3, 4, 5, 6, 7];
    let expected:   [u8;8] = [0, 0, 1, 2, 3, 4, 5, 6];
    unsafe { xrt::memmove(buffer[1..].as_mut_ptr(), buffer.as_ptr(), 7); }
    assert_eq!(buffer, expected);
}