Changeset 6755 for trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/SymbolicDataAnalysisExpressionTreeILEmittingInterpreter.cs

Timestamp:

09/13/11 17:38:29 (13 years ago)

Author:

gkronber

Message:

#1480 implemented code to handle root symbols for the il emitting interpreter and fixed code for power symbol.

File:

• trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/SymbolicDataAnalysisExpressionTreeILEmittingInterpreter.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic/3.4/SymbolicDataAnalysisExpressionTreeILEmittingInterpreter.cs

@@ -44 +44 @@
     private static MethodInfo log = typeof(Math).GetMethod("Log", new Type[] { typeof(double) });
     private static MethodInfo power = typeof(Math).GetMethod("Pow", new Type[] { typeof(double), typeof(double) });
+    private static MethodInfo round = typeof(Math).GetMethod("Round", new Type[] { typeof(double) });
 
     internal delegate double CompiledFunction(int sampleIndex, IList<double>[] columns);
@@ -340 +341 @@
             CompileInstructions(il, state);
             CompileInstructions(il, state);
+            il.Emit(System.Reflection.Emit.OpCodes.Call, round);
             il.Emit(System.Reflection.Emit.OpCodes.Call, power);
             return;
           }
         case OpCodes.Root: {
-            throw new NotImplementedException();
+            CompileInstructions(il, state);
+            il.Emit(System.Reflection.Emit.OpCodes.Ldc_R8, 1.0); // 1 / round(...)
+            CompileInstructions(il, state);
+            il.Emit(System.Reflection.Emit.OpCodes.Call, round);
+            il.Emit(System.Reflection.Emit.OpCodes.Div);
+            il.Emit(System.Reflection.Emit.OpCodes.Call, power);
+            return;
           }
         case OpCodes.Exp: {