val increment = (m - n) * (h + 1)
      if (delta > Int.MAX_VALUE - increment) return false // Prevent overflow.
      delta += increment

      n = m

      for (c in input) {
        if (c < n) {
          if (delta == Int.MAX_VALUE) return false // Prevent overflow.
          delta++
        } else if (c == n) {
          var q = delta

  }

  public void testOrderedPermutationSetSizeOverflow() {
    // 12 elements won't overflow
    assertEquals(
        479001600 /*12!*/,
        Collections2.orderedPermutations(newArrayList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12))
            .size());
    // 13 elements overflow an int
    assertEquals(
        Integer.MAX_VALUE,

     * might not run some of its listeners. The likely result is that the app will hang. (And of
     * course stack overflows are bad news in general. For example, we may have overflowed in the
     * middle of defining a class. If so, that class will never be loadable in this process.) The
     * best we can do (since logging may overflow the stack) is to let the error propagate. Because

   * uncached value. This is defined as {@code hitCount + missCount}.
   *
   * <p><b>Note:</b> the values of the metrics are undefined in case of overflow (though it is
   * guaranteed not to throw an exception). If you require specific handling, we recommend
   * implementing your own stats collector.
   */
  public long requestCount() {

   * uncached value. This is defined as {@code hitCount + missCount}.
   *
   * <p><b>Note:</b> the values of the metrics are undefined in case of overflow (though it is
   * guaranteed not to throw an exception). If you require specific handling, we recommend
   * implementing your own stats collector.
   */
  public long requestCount() {

      // overflow, return.
      return naiveSum;
    }
    // we did over/under flow, if the sign is negative we should return MAX otherwise MIN
    return Long.MAX_VALUE + ((naiveSum >>> (Long.SIZE - 1)) ^ 1);
  }

  /**
   * Returns the difference of {@code a} and {@code b} unless it would overflow or underflow in

*   Fixes an overflow producing a crash in `tf.range`
    ([CVE-2021-41202](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41202))
*   Fixes an overflow producing a crash in `tf.image.resize` when size is large
    ([CVE-2021-41199](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-41199))
*   Fixes an overflow producing a crash in `tf.tile` when tiling tensor is large

      ).decodeHex()
    serverWriter.writeMessageFrame(OPCODE_BINARY, payload)
    assertData("8232")
    assertData(payload)
  }

  @Test fun serverMessageLengthShort() {
    // Create a payload which will overflow the normal payload byte size.
    val payload = Buffer()
    while (payload.completeSegmentByteCount() <= PAYLOAD_BYTE_MAX) {
      payload.writeByte('0'.code)
    }

  }

  public void testOrderedPermutationSetSizeOverflow() {
    // 12 elements won't overflow
    assertEquals(
        479001600 /*12!*/,
        Collections2.orderedPermutations(newArrayList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12))
            .size());
    // 13 elements overflow an int
    assertEquals(
        Integer.MAX_VALUE,

    if (!condition) {
      throw new ArithmeticException("overflow: " + methodName + "(" + a + ", " + b + ")");
    }
  }

  static void checkNoOverflow(boolean condition, String methodName, long a, long b) {
    if (!condition) {
      throw new ArithmeticException("overflow: " + methodName + "(" + a + ", " + b + ")");
    }
  }

  private MathPreconditions() {}