Module org.seasar.doma.core

Package org.seasar.doma.internal.util

Class IntegerUtil

java.lang.Object

org.seasar.doma.internal.util.IntegerUtil

public final class IntegerUtil
extends Object

Constructor Summary

Constructors

Constructor	Description
IntegerUtil()

Method Summary

Modifier and Type	Method	Description
static int	nextPowerOfTwo(int n)	Computes the next power of two greater than or equal to the given integer.

Methods inherited from class java.lang.Object

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

Constructor Details

IntegerUtil

public IntegerUtil()

Method Details

nextPowerOfTwo

public static int nextPowerOfTwo(int n)

Computes the next power of two greater than or equal to the given integer. If the input is already a power of two, the method returns the same value. If the computation results in an overflow, the input value is returned instead.

Parameters:

n - the integer input, must be greater than or equal to 0

Returns:

the next power of two greater than or equal to the input value

Throws:

IllegalArgumentException - if the input value is less than 0