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source: branches/3.1/sources/HeuristicLab.Functions/IfThenElse.cs @ 5586

Last change on this file since 5586 was 434, checked in by gkronber, 16 years ago

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

File size: 1.7 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 IfThenElse : FunctionBase {
31    public override string Description {
32      get {
33        return @"Returns the result of the second sub-tree if the first sub-tree evaluates to a value < 0.5 and the result
34of the third sub-tree if the first sub-tree evaluates to >= 0.5.";
35      }
36    }
37
38    public IfThenElse()
39      : base() {
40      AddConstraint(new NumberOfSubOperatorsConstraint(3, 3));
41      AddConstraint(new SubOperatorTypeConstraint(0));
42      AddConstraint(new SubOperatorTypeConstraint(1));
43      AddConstraint(new SubOperatorTypeConstraint(2));
44    }
45
46    public override void Accept(IFunctionVisitor visitor) {
47      visitor.Visit(this);
48    }
49  }
50}
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