1 files changed, 19 insertions, 24 deletions

diff --git a/impl/Operator.hpp b/impl/Operator.hpp
index 80bc8b2..5f7cd1e 100644
--- a/impl/Operator.hpp
+++ b/impl/Operator.hpp
@@ -13,8 +13,6 @@ float infinity() {
 
 template<typename T>
 struct Variable;
-template<typename T>
-struct VariableSet : public IdSet<const Variable<T> > {};
 
 template<typename T>
 struct VariableAssignment;
@@ -24,35 +22,32 @@ struct Expression;
 template<typename T>
 struct Operator {
   virtual ~Operator() { }
-  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& rho) const {
-    return (*this)(args, rho, (VariableSet<T>*) NULL);
-  }
-  virtual T operator() (const std::vector< Expression<T>* >&, const VariableAssignment<T>&, VariableSet<T>*) const = 0;
+  virtual T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& rho) const = 0;
 };
 template<typename T>
 struct Maximum : public Operator<T> {
-  virtual T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& assignment, VariableSet<T>* visited) const {
+  virtual T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& assignment) const {
     T value = -infinity<T>();
     for (typename std::vector< Expression<T>* >::const_iterator it = args.begin();
          it != args.end();
          ++it) {
-      T temporary = (**it)(assignment, visited);
-      value = (temporary < value ? value : temporary);
-      if (value == infinity<T>()) break;
+      T temporary = (**it)(assignment);
+      value = (temporary > value ? temporary : value);
+      //if (value == infinity<T>()) break;
     }
     return value;
   }
 };
 template<typename T>
 struct Minimum : public Operator<T> {
-  virtual T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& assignment, VariableSet<T>* visited) const {
+  virtual T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& assignment) const {
     T value = infinity<T>();
     for (typename std::vector< Expression<T>* >::const_iterator it = args.begin();
          it != args.end();
          ++it) {
-      T temporary = (**it)(assignment, visited);
+      T temporary = (**it)(assignment);
       value = (temporary < value ? temporary : value);
-      if (value == -infinity<T>()) break;
+      //if (value == -infinity<T>()) break;
     }
     return value;
   }
@@ -62,7 +57,7 @@ template<typename T>
 struct Constant : public Operator<T> {
   Constant(const T& val)
     : _value(val) { }
-  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& ass, VariableSet<T>*) const {
+  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& ass) const {
     return _value;
   }
   private:
@@ -71,10 +66,10 @@ struct Constant : public Operator<T> {
 
 template<typename T>
 struct Addition: public Operator<T> {
-  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& ass, VariableSet<T>* visited) const {
+  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& ass) const {
     T sum = (*args[0])(ass);
     for (unsigned int i = 1, size = args.size(); i < size; ++i) {
-      sum += (*args[i])(ass, visited);
+      sum += (*args[i])(ass);
     }
     return sum;
   }
@@ -82,10 +77,10 @@ struct Addition: public Operator<T> {
 
 template<typename T>
 struct Subtraction: public Operator<T> {
-  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& ass, VariableSet<T>* visited) const {
+  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& ass) const {
     T sum = (*args[0])(ass);
     for (unsigned int i = 1, size = args.size(); i < size; ++i) {
-      sum -= (*args[i])(ass, visited);
+      sum -= (*args[i])(ass);
     }
     return sum;
   }
@@ -93,24 +88,24 @@ struct Subtraction: public Operator<T> {
 
 template<typename T>
 struct Comma: public Operator<T> {
-  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& ass, VariableSet<T>* visited) const {
-    if ((*args[0])(ass, visited) == -infinity<T>()) {
+  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& ass) const {
+    if ((*args[0])(ass) == -infinity<T>()) {
       std::cout << "Comma - neg inf" << std::endl;
       return -infinity<T>();
     } else {
       std::cout << "Comma - finite" << std::endl;
-      return (*args[1])(ass, visited);
+      return (*args[1])(ass);
     }
   }
 };
 
 template<typename T>
 struct Guard: public Operator<T> {
-  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& ass, VariableSet<T>* visited) const {
-    if ((*args[0])(ass, visited) < (*args[1])(ass, visited)) {
+  T operator() (const std::vector< Expression<T>* >& args, const VariableAssignment<T>& ass) const {
+    if ((*args[0])(ass) < (*args[1])(ass)) {
       return -infinity<T>();
     } else {
-      return (*args[2])(ass, visited);
+      return (*args[2])(ass);
     }
   }
 };