1 files changed, 9 insertions, 6 deletions
diff --git a/impl/Expression.hpp b/impl/Expression.hpp
index 4798e60..d3dfcf3 100644
--- a/impl/Expression.hpp
+++ b/impl/Expression.hpp
@@ -7,6 +7,8 @@
 
 template<typename T>
 struct Variable;
+template<typename T>
+struct MaxStrategy;
 
 int ExpressionCount;
 
@@ -22,9 +24,6 @@ struct Expression {
   virtual T operator() (const VariableAssignment<T>& assignment) const {
     return (*_operator)(_arguments, assignment);
   }
-  virtual T operator() (const VariableAssignment<T>& assignment, VariableSet<T>* visited) const {
-    return (*_operator)(_arguments, assignment, visited);
-  }
   protected:
   Operator<T>* _operator;
   std::vector< Expression<T>* > _arguments;
@@ -46,14 +45,17 @@ struct MaxExpression : public Expression<T> {
     }
     return Expression<T>::_arguments[i];
   }
-  std::pair<T, unsigned int> bestStrategy(const VariableAssignment<T>& rho) const {
+  virtual T operator() (const VariableAssignment<T>& assignment) const {
+    throw "error";
+  }
+  std::pair<T, unsigned int> bestStrategy(const VariableAssignment<T>& rho, const MaxStrategy<T>& strat) const {
     std::pair<T, unsigned int> best = std::pair<T, unsigned int>(-infinity<T>(), 0);
     for (unsigned int i = 0, size = Expression<T>::_arguments.size(); i < size; ++i) {
-      T value = (*Expression<T>::_arguments[i])(rho);
+      T value = strat(*Expression<T>::_arguments[i], rho);
       if (value > best.first)
         best = std::pair<T, unsigned int>(value, i);
     }
-    std::cerr << "Best strategy: (" << best.first << ", " << best.second << ")" << std::endl;
+    std::cerr << "Best strategy: (" << best.first << ", " << best.second << ")" << std::endl << std::endl;
     return best;
   }
   private:
@@ -61,5 +63,6 @@ struct MaxExpression : public Expression<T> {
 };
 
 #include "Variable.hpp"
+#include "MaxStrategy.hpp"
 
 #endif