Method deDup

src/Bytes.java:584–586

De-duplicates two byte arrays. If two byte arrays have the same contents but are different, this function helps to re-use the old one and discard the new copy. @param old The existing byte array. @param neww The new byte array we're trying to de-duplicate. @return old if neww is

(final byte[] old, final byte[] neww)

   * contents, otherwise {@code neww}.
   */
  public static byte[] deDup(final byte[] old, final byte[] neww) {
    return memcmp(old, neww) == 0 ? old : neww;
  }

  /**
   * Tests whether two byte arrays have the same contents.