Imported Upstream version 1.49.0upstream/1.49.0

1 files changed, 41 insertions, 0 deletions

diff --git a/boost/fusion/adapted/struct/detail/deref_impl.hpp b/boost/fusion/adapted/struct/detail/deref_impl.hpp
new file mode 100644
index 0000000000..3f25efef58
--- /dev/null
+++ b/boost/fusion/adapted/struct/detail/deref_impl.hpp
@@ -0,0 +1,41 @@
+/*=============================================================================
+    Copyright (c) 2009-2010 Christopher Schmidt
+
+    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)
+==============================================================================*/
+
+#ifndef BOOST_FUSION_ADAPTED_STRUCT_DETAIL_DEREF_IMPL_HPP
+#define BOOST_FUSION_ADAPTED_STRUCT_DETAIL_DEREF_IMPL_HPP
+
+namespace boost { namespace fusion { namespace extension
+{
+    template <typename>
+    struct deref_impl;
+
+    template <>
+    struct deref_impl<struct_iterator_tag>
+    {
+        template <typename It>
+        struct apply
+        {
+           typedef typename
+               access::struct_member<
+                   typename remove_const<typename It::seq_type>::type
+                 , It::index::value
+               >::template apply<typename It::seq_type>
+           impl;
+
+           typedef typename impl::type type;
+
+           static
+           type
+           call(It const& it)
+           {
+               return impl::call(*it.seq);
+           }
+        };
+    };
+}}}
+
+#endif