Make field private.

diff --git a/src/surf/surf_interface.hpp b/src/surf/surf_interface.hpp
index 6b9712d..85d23ef 100644 (file)
--- a/src/surf/surf_interface.hpp
+++ b/src/surf/surf_interface.hpp
@@ -244,6 +244,8 @@ protected:
   double lastUpdate_ = 0;
   int suspended_ = 0;
   int indexHeap_;
+
+private:
   enum heap_action_type hat_ = NOTSET;
 };