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1   package org.codehaus.groovy.runtime;
2   
3   /***
4    * FloatingPoint (Double and Float) NumberMath operations
5    * 
6    * @author Steve Goetze
7    */
8   public class FloatingPointMath extends NumberMath {
9   
10  	protected static FloatingPointMath instance = new FloatingPointMath();
11  	
12  	private FloatingPointMath() {}
13  				
14  	protected Number absImpl(Number number) {
15  		return new Double(Math.abs(number.doubleValue()));
16  	}
17  	
18  	protected Number addImpl(Number left, Number right) {
19  		return new Double(left.doubleValue() + right.doubleValue());
20  	}
21  
22  	protected Number subtractImpl(Number left, Number right) {
23  		return new Double(left.doubleValue() - right.doubleValue());
24  	}
25  
26  	protected Number multiplyImpl(Number left, Number right) {
27  		return new Double(left.doubleValue() * right.doubleValue());
28  	}
29  
30  	protected Number divideImpl(Number left, Number right) {
31  		return new Double(left.doubleValue() / right.doubleValue());
32  	}
33  	protected int compareToImpl(Number left, Number right) {
34  		return Double.compare(left.doubleValue(), right.doubleValue());
35  	}
36      
37      protected Number modImpl(Number left, Number right) {
38          return new Double(left.doubleValue() % right.doubleValue());
39      }
40      
41      protected Number negateImpl(Number left) {
42          return new Double(-left.doubleValue());
43      }
44  }