fail("Expected ArithmeticException");
        } catch (ArithmeticException expected) {
        }
      }
    }
    try {
      int k = LongMath.biggestSimpleBinomials.length;
      simpleBinomial(2 * k, k);
      // 2 * k is the smallest value for which we don't replace k with (n-k).
      fail("Expected ArithmeticException");
    } catch (ArithmeticException expected) {
    }
  }

      } catch (ArithmeticException expected) {
      }
    }
  }

  @GwtIncompatible // DoubleMath.roundToInt(double, RoundingMode)
  public void testRoundInfiniteToIntAlwaysFails() {
    for (RoundingMode mode : ALL_ROUNDING_MODES) {
      try {
        DoubleMath.roundToInt(Double.POSITIVE_INFINITY, mode);
        fail("Expected ArithmeticException");
      } catch (ArithmeticException expected) {

          fail("Expected ArithmeticException");
        } catch (ArithmeticException expected) {
        }
      }
    }
    try {
      int k = LongMath.biggestSimpleBinomials.length;
      simpleBinomial(2 * k, k);
      // 2 * k is the smallest value for which we don't replace k with (n-k).
      fail("Expected ArithmeticException");
    } catch (ArithmeticException expected) {
    }
  }

   *
   * @throws IllegalArgumentException if {@code x <= 0}
   * @throws ArithmeticException of the next-higher power of two is not representable as an {@code
   *     int}, i.e. when {@code x > 2^30}
   * @since 20.0
   */
  public static int ceilingPowerOfTwo(int x) {
    checkPositive("x", x);
    if (x > MAX_SIGNED_POWER_OF_TWO) {
      throw new ArithmeticException("ceilingPowerOfTwo(" + x + ") not representable as an int");
    }

          IntMath.mod(x, m);
          fail("Expected ArithmeticException");
        } catch (ArithmeticException expected) {
        }
      }
    }
  }

  public void testModZeroModulusFails() {
    for (int x : ALL_INTEGER_CANDIDATES) {
      try {
        IntMath.mod(x, 0);
        fail("Expected ArithmeticException");
      } catch (ArithmeticException expected) {
      }
    }
  }

@ElementTypesAreNonnullByDefault
final class Internal {

  /**
   * Returns the number of nanoseconds of the given duration without throwing or overflowing.
   *
   * <p>Instead of throwing {@link ArithmeticException}, this method silently saturates to either
   * {@link Long#MAX_VALUE} or {@link Long#MIN_VALUE}. This behavior can be useful when decomposing

  static void checkRoundingUnnecessary(boolean condition) {
    if (!condition) {
      throw new ArithmeticException("mode was UNNECESSARY, but rounding was necessary");
    }
  }

  static void checkInRangeForRoundingInputs(boolean condition, double input, RoundingMode mode) {
    if (!condition) {
      throw new ArithmeticException(
          "rounded value is out of range for input " + input + " and rounding mode " + mode);
    }
  }

          int unused = IntMath.checkedAdd(a, b);
          return true;
        } catch (ArithmeticException e) {
          return false;
        }
      }

      @Override
      public boolean noAddOverflow(long a, long b) {
        try {
          long unused = LongMath.checkedAdd(a, b);
          return true;
        } catch (ArithmeticException e) {
          return false;
        }
      }

      @Override

  static void checkRoundingUnnecessary(boolean condition) {
    if (!condition) {
      throw new ArithmeticException("mode was UNNECESSARY, but rounding was necessary");
    }
  }

  static void checkInRangeForRoundingInputs(boolean condition, double input, RoundingMode mode) {
    if (!condition) {
      throw new ArithmeticException(
          "rounded value is out of range for input " + input + " and rounding mode " + mode);
    }
  }

@ElementTypesAreNonnullByDefault
final class Internal {

  /**
   * Returns the number of nanoseconds of the given duration without throwing or overflowing.
   *
   * <p>Instead of throwing {@link ArithmeticException}, this method silently saturates to either
   * {@link Long#MAX_VALUE} or {@link Long#MIN_VALUE}. This behavior can be useful when decomposing