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1   package org.codehaus.groovy.runtime;
2   
3   /***
4    * BigInteger NumberMath operations
5    * 
6    * @author Steve Goetze
7    */
8   public class BigIntegerMath extends NumberMath {
9   
10  	protected static BigIntegerMath instance = new BigIntegerMath();
11  	
12  	private BigIntegerMath() {}
13  
14  	protected Number absImpl(Number number) {
15  		return toBigInteger(number).abs();
16  	}
17  	
18  	protected Number addImpl(Number left, Number right) {
19  		return toBigInteger(left).add(toBigInteger(right));
20  	}
21  
22  	protected Number subtractImpl(Number left, Number right) {
23  		return toBigInteger(left).subtract(toBigInteger(right));
24  	}
25  
26  	protected Number multiplyImpl(Number left, Number right) {
27  		return toBigInteger(left).multiply(toBigInteger(right));
28  	}
29  
30  	protected Number divideImpl(Number left, Number right) {
31  		return BigDecimalMath.instance.divideImpl(left, right);
32  	}
33  	
34  	protected int compareToImpl(Number left, Number right) {
35  		return toBigInteger(left).compareTo(toBigInteger(right));
36  	}
37  
38      protected Number andImpl(Number left, Number right) {
39          return toBigInteger(left).and(toBigInteger(right));
40      }
41      
42      protected Number intdivImpl(Number left, Number right) {
43          return toBigInteger(left).divide(toBigInteger(right));
44      }
45      
46      protected Number modImpl(Number left, Number right) {
47          return toBigInteger(left).mod(toBigInteger(right));
48      }
49      
50      protected Number negateImpl(Number left) {
51          return toBigInteger(left).negate();
52      }
53  
54      protected Number orImpl(Number left, Number right) {
55          return toBigInteger(left).or(toBigInteger(right));
56      }
57  }