Changeset 3839 for trunk/sources/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.3/SymbolicExpressionTreeTopLevelNode.cs

Timestamp:

05/18/10 11:34:32 (15 years ago)

Author:

mkommend

Message:

implemented first version of LR (ticket #1012)

File:

• trunk/sources/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.3/SymbolicExpressionTreeTopLevelNode.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding/3.3/SymbolicExpressionTreeTopLevelNode.cs

@@ -54 +54 @@
     protected SymbolicExpressionTreeTopLevelNode(SymbolicExpressionTreeTopLevelNode original)
       : base(original) {
-      grammar = (ISymbolicExpressionGrammar)original.Grammar.Clone();
+      if (original.Grammar != null)
+        grammar = (ISymbolicExpressionGrammar)original.Grammar.Clone();
     }