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source: branches/3.1/sources/HeuristicLab.Functions/Equal.cs @ 4075

Last change on this file since 4075 was 434, checked in by gkronber, 16 years ago

added creation of empty SubOperatorTypeConstraints for each input of each function (#163)

File size: 1.6 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.Linq;
25using System.Text;
26using HeuristicLab.Constraints;
27using HeuristicLab.DataAnalysis;
28
29namespace HeuristicLab.Functions {
30  public sealed class Equal : FunctionBase {
31    public override string Description {
32      get {
33        return @"Equal condition. Returns 1.0 if both sub-trees evaluate to the same value and 0.0 if they differ.";
34      }
35    }
36
37    public Equal()
38      : base() {
39      AddConstraint(new NumberOfSubOperatorsConstraint(2, 2));
40      AddConstraint(new SubOperatorTypeConstraint(0));
41      AddConstraint(new SubOperatorTypeConstraint(1));
42    }
43
44    public override void Accept(IFunctionVisitor visitor) {
45      visitor.Visit(this);
46    }
47  }
48}
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