Initial Commit

2018-02-08 21:28:33 -05:00
commit 678c1d3966
14352 changed files with 3176737 additions and 0 deletions
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+/*=============================================================================
+    Copyright (c) 2001-2011 Joel de Guzman
+    Copyright (c) 2006 Dan Marsden
+
+    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)
+==============================================================================*/
+#if !defined(FUSION_DEREF_IMPL_20061024_1959)
+#define FUSION_DEREF_IMPL_20061024_1959
+
+#include <boost/fusion/support/config.hpp>
+#include <boost/fusion/container/vector.hpp>
+#include <boost/fusion/iterator/deref.hpp>
+#include <boost/fusion/algorithm/transformation/transform.hpp>
+#include <boost/fusion/container/vector/convert.hpp>
+#include <boost/fusion/support/unused.hpp>
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/identity.hpp>
+#include <boost/type_traits/is_same.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+#include <boost/type_traits/remove_const.hpp>
+
+namespace boost { namespace fusion {
+
+    struct zip_view_iterator_tag;
+
+    namespace detail
+    {
+        struct poly_deref
+        {
+            template<typename Sig>
+            struct result;
+
+            template<typename It>
+            struct result<poly_deref(It)>
+            {
+                typedef typename remove_const<
+                    typename remove_reference<It>::type>::type it;
+
+                typedef typename mpl::eval_if<is_same<it, unused_type>,
+                    mpl::identity<unused_type>,
+                    result_of::deref<it> >::type type;
+            };
+
+            template<typename It>
+            BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
+            typename result<poly_deref(It)>::type
+            operator()(const It& it) const
+            {
+                return fusion::deref(it);
+            }
+
+            BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
+            unused_type operator()(unused_type const&) const
+            {
+                return unused_type();
+            }
+        };
+    }
+
+    namespace extension
+    {
+        template<typename Tag>
+        struct deref_impl;
+
+        template<>
+        struct deref_impl<zip_view_iterator_tag>
+        {
+            template<typename It>
+            struct apply
+            {
+                typedef typename result_of::as_vector<
+                    typename result_of::transform<typename It::iterators, detail::poly_deref>::type>::type type;
+
+                BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
+                static type
+                call(It const& it)
+                {
+                    return type(
+                        fusion::transform(it.iterators_, detail::poly_deref()));
+                }
+            };
+        };
+    }
+}}
+
+#endif