// vol. 2, Knuth, 4.2.2, (16) to the two-variable case. We have two value series x_i and y_i.
    // We define the arithmetic means X_n = 1/n \sum_{i=1}^n x_i, and Y_n = 1/n \sum_{i=1}^n y_i.
    // We also define the sum of the products of the differences from the means
    //           C_n = \sum_{i=1}^n x_i y_i - n X_n Y_n
    // for all n >= 1. Then for all n > 1:
    //       C_{n-1} = \sum_{i=1}^{n-1} x_i y_i - (n-1) X_{n-1} Y_{n-1}

        }
    }

    /**
     * Safe integer addition with overflow check
     *
     * @param a first operand
     * @param b second operand
     * @return sum of a and b
     * @throws ArithmeticException if overflow occurs
     */
    public static int safeAdd(int a, int b) {
        validateIntegerAddition(a, b, "Addition");
        return a + b;
    }

    /**

        }
    }

    /**
     * Safely add integers checking for overflow
     *
     * @param a first value
     * @param b second value
     * @return sum
     * @throws SmbException if overflow would occur
     */
    public int safeAdd(int a, int b) throws SmbException {
        totalValidations.incrementAndGet();

        long result = (long) a + (long) b;

        max(0, saturatedSubtract(totalLoadTime, other.totalLoadTime)),
        max(0, saturatedSubtract(evictionCount, other.evictionCount)));
  }

  /**
   * Returns a new {@code CacheStats} representing the sum of this {@code CacheStats} and {@code
   * other}.
   *
   * <p><b>Note:</b> the values of the metrics are undefined in case of overflow (though it is

        max(0, saturatedSubtract(totalLoadTime, other.totalLoadTime)),
        max(0, saturatedSubtract(evictionCount, other.evictionCount)));
  }

  /**
   * Returns a new {@code CacheStats} representing the sum of this {@code CacheStats} and {@code
   * other}.
   *
   * <p><b>Note:</b> the values of the metrics are undefined in case of overflow (though it is

pkg runtime/debug, type Module struct
pkg runtime/debug, type Module struct, Path string
pkg runtime/debug, type Module struct, Replace *Module
pkg runtime/debug, type Module struct, Sum string
pkg runtime/debug, type Module struct, Version string
pkg strings, func ReplaceAll(string, string, string) string
pkg strings, method (*Builder) Cap() int
pkg syscall (freebsd-386), const S_IRWXG = 56

	f.formatOctal(field[:7], chksum) // Never fails since 128776 < 262143
	field[7] = ' '
}

// computeChecksum computes the checksum for the header block.
// POSIX specifies a sum of the unsigned byte values, but the Sun tar used
// signed byte values.
// We compute and return both.
func (b *block) computeChecksum() (unsigned, signed int64) {
	for i, c := range b {
		if 148 <= i && i < 156 {

   * instances with many combinations of finite and non-finite values. All have {@link
   * #MANY_VALUES_COUNT} values. If all the values are finite then the mean is {@link
   * #MANY_VALUES_MEAN} and the sum-of-squares-of-deltas is {@link
   * #MANY_VALUES_SUM_OF_SQUARES_OF_DELTAS}. The smallest and largest finite values are always
   * {@link #MANY_VALUES_MIN} and {@link #MANY_VALUES_MAX}, although setting non-finite values will

   *
   * <p>If the mapped elements contain duplicates (according to {@link Object#equals}), the first
   * occurrence in encounter order appears in the resulting multiset, with count equal to the sum of
   * the outputs of {@code countFunction.applyAsInt(t)} for each {@code t} mapped to that element.
   *
   * @since 22.0
   */
  public static <T extends @Nullable Object, E>

     */
    public ChannelStatistics getStatistics() {
        return new ChannelStatistics(sessionChannels.size(),
                sessionChannels.values().stream().mapToInt(ChannelGroup::getChannelCount).sum(), totalRequests.get(),
                totalChannelsCreated.get());
    }

    /**
     * Channel statistics.
     */
    public static class ChannelStatistics {
        private final int activeSessions;