Changeset 15256 for branches/PerformanceComparison/HeuristicLab.Encodings.LinearLinkageEncoding/3.4/LinearLinkageEqualityComparer.cs

Timestamp:

07/15/17 14:25:44 (7 years ago)

Author:

abeham

Message:

#2457: merged trunk into branch

Location:

branches/PerformanceComparison/HeuristicLab.Encodings.LinearLinkageEncoding

Files:

• . (modified) (1 prop)
• 3.4/LinearLinkageEqualityComparer.cs (modified) (2 diffs)

branches/PerformanceComparison/HeuristicLab.Encodings.LinearLinkageEncoding/3.4/LinearLinkageEqualityComparer.cs

@@ -20 +20 @@
 #endregion
 
+using System;
 using System.Collections.Generic;
+using HeuristicLab.PluginInfrastructure;
 
 namespace HeuristicLab.Encodings.LinearLinkageEncoding {
+  [NonDiscoverableType]
   public class LinearLinkageEqualityComparer : EqualityComparer<LinearLinkage> {
     public override bool Equals(LinearLinkage x, LinearLinkage y) {
-      if (x == null && y == null) return true;
+      if (ReferenceEquals(x, y)) return true;
       if (x == null || y == null) return false;
       if (x.Length != y.Length) return false;
@@ -34 +37 @@
 
     public override int GetHashCode(LinearLinkage obj) {
+      if (obj == null) throw new ArgumentNullException("obj", "LinearLinkageEqualityComparer: Cannot compute hash value of null.");
       unchecked {
         int hash = 17;