Clover Coverage Report
Coverage timestamp: mer. juin 27 2007 07:27:16 CEST
6   78   1   1,5
0   21   0,67   4
4     1  
1    
 
  Lbool       Line # 34 6 1 100% 1.0
 
  (7)
 
1    /*
2    * SAT4J: a SATisfiability library for Java Copyright (C) 2004-2006 Daniel Le Berre
3    *
4    * Based on the original minisat specification from:
5    *
6    * An extensible SAT solver. Niklas E?n and Niklas S?rensson. Proceedings of the
7    * Sixth International Conference on Theory and Applications of Satisfiability
8    * Testing, LNCS 2919, pp 502-518, 2003.
9    *
10    * This library is free software; you can redistribute it and/or modify it under
11    * the terms of the GNU Lesser General Public License as published by the Free
12    * Software Foundation; either version 2.1 of the License, or (at your option)
13    * any later version.
14    *
15    * This library is distributed in the hope that it will be useful, but WITHOUT
16    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17    * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
18    * details.
19    *
20    * You should have received a copy of the GNU Lesser General Public License
21    * along with this library; if not, write to the Free Software Foundation, Inc.,
22    * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23    *
24    */
25   
26    package org.sat4j.minisat.core;
27   
28    /**
29    * That enumeration defines the possible truth value for a variable: satisfied,
30    * falsified or unknown/undefined.
31    *
32    * @author leberre
33    */
 
34    public enum Lbool {
35   
36    FALSE("F"), TRUE("T"), UNDEFINED("U"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$
37   
 
38  38 toggle static {
39    // usual boolean rules for negation
40  38 FALSE.opposite = TRUE;
41  38 TRUE.opposite = FALSE;
42  38 UNDEFINED.opposite = UNDEFINED;
43    }
44   
 
45  114 toggle private Lbool(String symbol) {
46  114 this.symbol = symbol;
47    }
48   
49    /**
50    * boolean negation.
51    *
52    * @return Boolean negation. The negation of UNDEFINED is UNDEFINED.
53    */
 
54  3 toggle public Lbool not() {
55  3 return opposite;
56    }
57   
58    /**
59    * Textual representation for the truth value.
60    *
61    * @return "T","F" or "U"
62    */
 
63  3 toggle @Override
64    public String toString() {
65  3 return symbol;
66    }
67   
68    /**
69    * The symbol representing the truth value.
70    */
71    private final String symbol;
72   
73    /**
74    * the opposite truth value.
75    */
76    private Lbool opposite;
77   
78    }