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Hibernate's core ORM functionality

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/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
 * See the lgpl.txt file in the root directory or .
 */
package org.hibernate.internal.util;

/**
 * @author Vlad Mihalcea
 */
public final class MathHelper {

	private MathHelper() { /* static methods only - hide constructor */
	}

	/**
	 * Returns the smallest power of two number that is greater than or equal to {@code value}.
	 *
	 * @param value reference number
	 * @return smallest power of two number
	 */
	public static int ceilingPowerOfTwo(int value) {
		return 1 << -Integer.numberOfLeadingZeros(value - 1);
	}
}