com.hazelcast.util

Class QuickMath

java.lang.Object

com.hazelcast.util.QuickMath

public final class QuickMath
extends Object

The class QuickMath contains methods to perform optimized mathematical operations. Methods are allowed to put additional constraints on the range of input values if required for efficiency. Methods are not required to perform validation of input arguments, but they have to indicate the constraints in theirs contract.

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	isPowerOfTwo(int x) Return true if input argument is power of two.
static int	mod(int a, int b) Computes the remainder of the division of a by b.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isPowerOfTwo

public static boolean isPowerOfTwo(int x)

Return true if input argument is power of two. Input has to be a a positive integer. Result is undefined for zero or negative integers.

Parameters:

x -

Returns:

true if x is power of two

mod

public static int mod(int a,
      int b)

Computes the remainder of the division of a by b. a has to be non-negative integer and b has to be power of two otherwise the result is undefined.

Parameters:

a -

b -

Returns:

remainder of the division of a by b.