1 files changed, 4 insertions, 2 deletions
diff --git a/impl/EquationSystem.hpp b/impl/EquationSystem.hpp
index 4c55bd7..c0734aa 100644
--- a/impl/EquationSystem.hpp
+++ b/impl/EquationSystem.hpp
@@ -97,14 +97,16 @@ struct EquationSystem {
 
   Variable<Domain>* varFromExpr(const Expression<Domain>& expr) const {
     if (_expr_to_var) { // we've indexed:
-      auto* maxExpr = dynamic_cast<const MaxExpression<Domain>*>(&expr);
+      const MaxExpression<Domain>* maxExpr = dynamic_cast<const MaxExpression<Domain>*>(&expr);
       if (maxExpr) {
         return (*_expr_to_var)[*maxExpr];
       } else {
         return NULL;
       }
     } else {
-      throw "Must index max expressions before attempting lookup";
+      std::cout << "throw exception" << *(char*)NULL;
+      return NULL;
+      //throw "Must index max expressions before attempting lookup";
     }
   }