整理

include/boost/mpl/aux_/range_c/back.hpp

@@ -0,0 +1,34 @@
+
+#ifndef BOOST_MPL_AUX_RANGE_C_BACK_HPP_INCLUDED
+#define BOOST_MPL_AUX_RANGE_C_BACK_HPP_INCLUDED
+
+// Copyright Aleksey Gurtovoy 2000-2004
+//
+// Distributed under 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)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Id$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/back_fwd.hpp>
+#include <boost/mpl/prior.hpp>
+#include <boost/mpl/aux_/range_c/tag.hpp>
+
+namespace boost { namespace mpl {
+
+template<>
+struct back_impl< aux::half_open_range_tag >
+{
+    template< typename Range > struct apply
+    {
+        typedef typename prior< typename Range::finish >::type type;
+    };
+};
+
+}}
+
+#endif // BOOST_MPL_AUX_RANGE_C_BACK_HPP_INCLUDED