Bugfix: Evaluation of double-valued powers by the simulator.

git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@52 bbc10eb1-c90d-0410-af57-cb519fbb1720

prism/src/simulator/simexpression.cc

@@ -1280,12 +1280,12 @@ int CRealPow::Get_Type()
 
 double CRealPow::EvaluateDouble()
 {
-	return pow(lexpr->Evaluate(), rexpr->Evaluate());
+	return pow(lexpr->EvaluateDouble(), rexpr->EvaluateDouble());
 }
 
 double CRealPow::EvaluateDouble(int* vars)
 {
-	return pow(lexpr->Evaluate(vars), rexpr->Evaluate(vars));
+	return pow(lexpr->EvaluateDouble(vars), rexpr->EvaluateDouble(vars));
 }
 
 bool CRealPow::One_Result()