text: package org.sagebionetworks.schema.util;
  
  /**
   *
   */
  public class CompareUtils {
  	
  	/**
  	 * The absolute error used for comparing two doubles (epsilon - absolute error).
  	 */
  	public static final double ABSOLUTE_ERROR = 0.000000000000001d;
  	
  	/**
  	 * Since GWT does not support Double.doubleToLongBits() for comparing doubles, we needed an alternative.
  	 * This method simply compares two doubles with epsilon - absolute error
  	 * 
  	 *  @see <a href="Comparing floating point numbers">http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm</a>
  	 * @param a
  	 * @param b
  	 * @return
  	 */
  	public static boolean doubleEquals(double a, double b){
  		// epsilon - absolute error
  		return Math.abs(a-b) < ABSOLUTE_ERROR;
  	}
  }