Fix a segfault and a stupid parser decision.

1 files changed, 7 insertions, 1 deletions

diff --git a/impl/MaxStrategy.hpp b/impl/MaxStrategy.hpp
index e52fd99..f4e4055 100644
--- a/impl/MaxStrategy.hpp
+++ b/impl/MaxStrategy.hpp
@@ -1,6 +1,7 @@
 #ifndef MAX_STRATEGY_HPP
 #define MAX_STRATEGY_HPP
 
+#include <iostream>
 #include "Expression.hpp"
 #include "EquationSystem.hpp"
 #include "VariableAssignment.hpp"
@@ -69,7 +70,12 @@ struct MaxStrategy {
       if (best.first > oldValue)
         newStrategy[*expr] = best.second;
     }
-    std::cout << "Strat improvement: " << newStrategy[*s.getMax(0)] << std::endl;
+    std::cerr << "Strat improvement: ";
+    if (_length > 0)
+      std::cerr << newStrategy[*s.getMax(0)];
+    else
+      std::cerr << "no max expressions";
+    std::cerr << std::endl;
     return newStrategy;
   }