Changeset 14662 for trunk/sources/HeuristicLab.Encodings.PermutationEncoding/3.3/Manipulators/Swap3Manipulator.cs

Timestamp:

02/11/17 00:27:04 (7 years ago)

Author:

abeham

Message:

#2731: Added better performing manipulation methods to Permutation and adapted the manipulators to use them

• Added unit tests

File:

• trunk/sources/HeuristicLab.Encodings.PermutationEncoding/3.3/Manipulators/Swap3Manipulator.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Encodings.PermutationEncoding/3.3/Manipulators/Swap3Manipulator.cs

@@ -57 +57 @@
     public static void Apply(IRandom random, Permutation permutation) {
       if (permutation.Length < 3) throw new ArgumentException("Swap3Manipulator: The permutation must be at least of size 3.", "permutation");
-      int index1, index2, index3, temp;
+      int index1, index2, index3;
 
       do {
@@ -65 +65 @@
       } while (index1 == index2 || index2 == index3 || index1 == index3);
 
-      // swap positions 1 and 2
-      temp = permutation[index1];
-      permutation[index1] = permutation[index2];
-      permutation[index2] = temp;
-      // swap positions 2 and 3
-      temp = permutation[index2];
-      permutation[index2] = permutation[index3];
-      permutation[index3] = temp;
+      permutation.Swap(index1, index2);
+      permutation.Swap(index2, index3);
     }