}

  // End of public functions.

  @VisibleForTesting
  static long fingerprint(byte[] bytes, int offset, int length) {
    if (length <= 32) {
      if (length <= 16) {
        return hashLength0to16(bytes, offset, length);
      } else {
        return hashLength17to32(bytes, offset, length);
      }
    } else if (length <= 64) {
      return hashLength33To64(bytes, offset, length);
    } else {