checkPositionIndexes(off, off + len, input.length);
    return HashCode.fromLong(fingerprint(input, off, len));
  }

  @Override
  public int bits() {
    return 64;
  }

  @Override
  public String toString() {
    return "Hashing.fingerprint2011()";
  }

  // End of public functions.

  @VisibleForTesting
  static long fingerprint(byte[] bytes, int offset, int length) {
    long result;

    checkPositionIndexes(off, off + len, input.length);
    return HashCode.fromLong(fingerprint(input, off, len));
  }

  @Override
  public int bits() {
    return 64;
  }

  @Override
  public String toString() {
    return "Hashing.fingerprint2011()";
  }

  // End of public functions.

  @VisibleForTesting
  static long fingerprint(byte[] bytes, int offset, int length) {
    long result;

   * farmhash::Fingerprint64() would for the same input (when compared using {@link
   * com.google.common.primitives.UnsignedLongs}'s encoding of 64-bit unsigned numbers).
   *
   * <p>This function is best understood as a <a
   * href="https://en.wikipedia.org/wiki/Fingerprint_(computing)">fingerprint</a> rather than a true