add a range_fwd.hpp header file for the main classes/structs and the extension points.

include/boost/range/const_iterator.hpp

@@ -17,7 +17,7 @@
 
 #include <boost/range/config.hpp>
 
-
+#include <boost/range/range_fwd.hpp>
 #include <boost/range/detail/extract_optional_type.hpp>
 #include <boost/type_traits/remove_const.hpp>
 #include <boost/type_traits/remove_reference.hpp>

include/boost/range/iterator.hpp

@@ -16,6 +16,7 @@
 #endif
 
 #include <boost/range/config.hpp>
+#include <boost/range/range_fwd.hpp>
 #include <boost/range/mutable_iterator.hpp>
 #include <boost/range/const_iterator.hpp>
 #include <boost/type_traits/is_const.hpp>

include/boost/range/mutable_iterator.hpp

@@ -17,7 +17,7 @@
 
 #include <boost/range/config.hpp>
 
-
+#include <boost/range/range_fwd.hpp>
 #include <boost/range/detail/extract_optional_type.hpp>
 #include <boost/type_traits/remove_reference.hpp>
 #include <boost/iterator/iterator_traits.hpp>

include/boost/range/range_fwd.hpp

@@ -0,0 +1,63 @@
+// Boost.Range library
+//
+//  Copyright Neil Groves 2003-2004.
+//  Use, modification and distribution is subject to the Boost Software
+//  License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+// For more information, see http://www.boost.org/libs/range/
+//
+#ifndef BOOST_RANGE_RANGE_FWD_HPP_INCLUDED
+#define BOOST_RANGE_RANGE_FWD_HPP_INCLUDED
+
+namespace boost
+{
+
+// Extension points
+    template<typename C, typename Enabler>
+    struct range_iterator;
+
+    template<typename C, typename Enabler>
+    struct range_mutable_iterator;
+
+    template<typename C, typename Enabler>
+    struct range_const_iterator;
+
+// Core classes
+    template<typename IteratorT>
+    class iterator_range;
+
+    template<typename ForwardRange>
+    class sub_range;
+
+// Meta-functions
+    template<typename T>
+    struct range_category;
+
+    template<typename T>
+    struct range_difference;
+
+    template<typename T>
+    struct range_pointer;
+
+    template<typename T>
+    struct range_reference;
+
+    template<typename T>
+    struct range_reverse_iterator;
+
+    template<typename T>
+    struct range_size;
+
+    template<typename T>
+    struct range_value;
+
+    template<typename T>
+    struct has_range_iterator;
+
+    template<typename T>
+    struct has_range_const_iterator;
+
+} // namespace boost
+
+#endif // include guard

include/boost/range/reverse_iterator.hpp

@@ -27,12 +27,12 @@ namespace boost
     // default
     //////////////////////////////////////////////////////////////////////////
     
-    template< typename C >
+    template< typename T >
     struct range_reverse_iterator
     {
         typedef reverse_iterator< 
             BOOST_DEDUCED_TYPENAME range_iterator<
-                BOOST_DEDUCED_TYPENAME remove_reference<C>::type>::type > type;
+                BOOST_DEDUCED_TYPENAME remove_reference<T>::type>::type > type;
     };