Added boost header

test/external/boost/intrusive/trivial_value_traits.hpp

@@ -0,0 +1,43 @@
+/////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga  2006-2009
+//
+// 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/intrusive for documentation.
+//
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP
+#define BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP
+
+#include <boost/intrusive/link_mode.hpp>
+
+namespace boost {
+namespace intrusive {
+
+//!This value traits template is used to create value traits
+//!from user defined node traits where value_traits::value_type and
+//!node_traits::node should be equal
+template<class NodeTraits, link_mode_type LinkMode = normal_link>
+struct trivial_value_traits
+{
+   typedef NodeTraits                                          node_traits;
+   typedef typename node_traits::node_ptr                      node_ptr;
+   typedef typename node_traits::const_node_ptr                const_node_ptr;
+   typedef typename node_traits::node                          value_type;
+   typedef node_ptr                                            pointer;
+   typedef const_node_ptr                                      const_pointer;
+   static const link_mode_type link_mode = LinkMode;
+   static node_ptr       to_node_ptr (value_type &value)       {  return node_ptr(&value); }
+   static const_node_ptr to_node_ptr (const value_type &value) {  return const_node_ptr(&value); }
+   static pointer        to_value_ptr(node_ptr n)              {  return pointer(n); }
+   static const_pointer  to_value_ptr(const_node_ptr n)        {  return const_pointer(n); }
+};
+
+} //namespace intrusive 
+} //namespace boost 
+
+#endif //BOOST_INTRUSIVE_TRIVIAL_VALUE_TRAITS_HPP