diff --git a/include/boost/exception/exception.hpp b/include/boost/exception/exception.hpp
index 31d4317..d762cf8 100644
--- a/include/boost/exception/exception.hpp
+++ b/include/boost/exception/exception.hpp
@@ -207,6 +207,12 @@ boost
     class
     exception
         {
+        //<N3757>
+        public:
+        template <class Tag> void set( typename Tag::type const & );
+        template <class Tag> typename Tag::type const * get() const;
+        //</N3757>
+
         protected:
 
         exception():