- added check for 'region' symbol

[supertux.git] / src / lisp / list_iterator.hpp

diff --git a/src/lisp/list_iterator.hpp b/src/lisp/list_iterator.hpp
index c11594e..0cb5b54 100644 (file)
--- a/src/lisp/list_iterator.hpp
+++ b/src/lisp/list_iterator.hpp
@@ -33,22 +33,21 @@ class ListIterator
 {
 public:
   ListIterator(const lisp::Lisp* cur);
-  
+
   const std::string& item() const
   { return current_item; }
-  lisp::Lisp* lisp() const
+  const lisp::Lisp* lisp() const
   { return current_lisp; }
-  lisp::Lisp* value() const
+  const lisp::Lisp* value() const
   { return current_lisp->get_car(); }
   bool next();
 
 private:
   std::string current_item;
-  lisp::Lisp* current_lisp;
+  const lisp::Lisp* current_lisp;
   const lisp::Lisp* cur;
 };
 
 }
 
 #endif
-