1 files changed, 0 insertions, 44 deletions
diff --git a/boost/spirit/home/qi/detail/attributes.hpp b/boost/spirit/home/qi/detail/attributes.hpp
index c5f5037d8c..5ec776ba4f 100644
--- a/boost/spirit/home/qi/detail/attributes.hpp
+++ b/boost/spirit/home/qi/detail/attributes.hpp
@@ -94,16 +94,6 @@ namespace boost { namespace spirit { namespace qi
         }
     };
 
-    // reference types need special handling
-    template <typename Attribute>
-    struct transform_attribute<Attribute&, Attribute>
-    {
-        typedef Attribute& type;
-        static Attribute& pre(Attribute& val) { return val; }
-        static void post(Attribute&, Attribute const&) {}
-        static void fail(Attribute&) {}
-    };
-
     // unused_type needs some special handling as well
     template <>
     struct transform_attribute<unused_type, unused_type>
@@ -120,16 +110,6 @@ namespace boost { namespace spirit { namespace qi
     {};
 
     template <typename Attribute>
-    struct transform_attribute<unused_type, Attribute>
-      : transform_attribute<unused_type, unused_type>
-    {};
-
-    template <typename Attribute>
-    struct transform_attribute<unused_type const, Attribute>
-      : transform_attribute<unused_type, unused_type>
-    {};
-
-    template <typename Attribute>
     struct transform_attribute<Attribute, unused_type>
       : transform_attribute<unused_type, unused_type>
     {};
@@ -149,30 +129,6 @@ namespace boost { namespace spirit { namespace traits
           : qi::transform_attribute<Exposed, Transformed>
         {};
     }
-
-    template <typename Exposed, typename Transformed>
-    struct transform_attribute<Exposed&, Transformed, qi::domain>
-      : transform_attribute<Exposed, Transformed, qi::domain>
-    {};
-
-    template <typename Attribute>
-    struct transform_attribute<Attribute&, Attribute, qi::domain>
-      : qi::transform_attribute<Attribute&, Attribute>
-    {};
-
-    ///////////////////////////////////////////////////////////////////////////
-    template <typename Exposed, typename Transformed>
-    void post_transform(Exposed& dest, Transformed const& attr)
-    {
-        return transform_attribute<Exposed, Transformed, qi::domain>::post(dest, attr);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////
-    template <typename Exposed, typename Transformed>
-    void fail_transform(Exposed& dest, Transformed const&)
-    {
-        return transform_attribute<Exposed, Transformed, qi::domain>::fail(dest);
-    }
 }}}
 
 #endif