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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  	protected Number subtractImpl(Number left, Number right) {
22  		return toBigInteger(left).subtract(toBigInteger(right));
23  	}
24  
25  	protected Number multiplyImpl(Number left, Number right) {
26  		return toBigInteger(left).multiply(toBigInteger(right));
27  	}
28  
29  	protected Number divideImpl(Number left, Number right) {
30  		return BigDecimalMath.instance.divideImpl(left, right);
31  	}
32  	
33  	protected int compareToImpl(Number left, Number right) {
34  		return toBigInteger(left).compareTo(toBigInteger(right));
35  	}
36  
37      protected Number intdivImpl(Number left, Number right) {
38          return toBigInteger(left).divide(toBigInteger(right));
39      }
40      
41      protected Number modImpl(Number left, Number right) {
42          return toBigInteger(left).mod(toBigInteger(right));
43      }
44      
45      protected Number negateImpl(Number left) {
46          return toBigInteger(left).negate();
47      }
48  
49      protected Number bitNegateImpl(Number left) {
50          return toBigInteger(left).not();
51      }
52  
53      protected Number orImpl(Number left, Number right) {
54          return toBigInteger(left).or(toBigInteger(right));
55      }
56  
57      protected Number andImpl(Number left, Number right) {
58          return toBigInteger(left).and(toBigInteger(right));
59      }
60      
61      protected Number xorImpl(Number left, Number right) {
62          return toBigInteger(left).xor(toBigInteger(right));
63      }
64  }