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source: branches/2845_EnhancedProgress/HeuristicLab.Algorithms.ParameterlessPopulationPyramid/3.3/EnumerableBoolEqualityComparer.cs @ 16311

Last change on this file since 16311 was 16311, checked in by pfleck, 5 years ago

#2845 Merged trunk changes into branch (15406-15681, 15683-16308)

File size: 1.4 KB
Line 
1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2018 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.Collections.Generic;
23using System.Linq;
24
25namespace HeuristicLab.Algorithms.ParameterlessPopulationPyramid {
26  public class EnumerableBoolEqualityComparer : IEqualityComparer<IEnumerable<bool>> {
27    public bool Equals(IEnumerable<bool> first, IEnumerable<bool> second) {
28      return first.SequenceEqual(second);
29    }
30    public int GetHashCode(IEnumerable<bool> obj) {
31      unchecked {
32        int hash = 17;
33        foreach (var bit in obj) {
34          hash = hash * 29 + (bit ? 1231 : 1237);
35        }
36        return hash;
37      }
38    }
39  }
40}
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