adapt template classes/structs

[SVN r59846]
2010-02-22 22:55:54 +00:00
parent bb88841f47
commit f84bc30bd3
79 changed files with 2489 additions and 2293 deletions
--- a/include/boost/fusion/adapted/struct/detail/deref_impl.hpp
+++ b/include/boost/fusion/adapted/struct/detail/deref_impl.hpp
@ -0,0 +1,56 @@
+/*=============================================================================
+    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_DETAIL_STRUCT_DEREF_IMPL_HPP
+#define BOOST_FUSION_ADAPTED_DETAIL_STRUCT_DEREF_IMPL_HPP
+
+#include <boost/fusion/support/detail/access.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/type_traits/remove_const.hpp>
+#include <boost/type_traits/is_const.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
+                extension::struct_member<
+                    typename remove_const<typename It::seq_type>::type
+                  , It::index::value
+                >
+            member;
+
+            typedef typename
+                mpl::eval_if<
+                    is_const<typename It::seq_type>
+                  , detail::cref_result<member>
+                  , detail::ref_result<member>
+                >::type
+            type;
+
+            static type
+            call(It const& it)
+            {
+                return member::call(*it.seq);
+            }
+        };
+    };
+
+    template <>
+    struct deref_impl<assoc_struct_iterator_tag>
+       : deref_impl<struct_iterator_tag>
+    {};
+}}}
+
+#endif