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_END_IMPL_20060123_2208)
+#define FUSION_END_IMPL_20060123_2208
+
+#include <boost/fusion/support/config.hpp>
+#include <boost/fusion/view/zip_view/zip_view_iterator_fwd.hpp>
+#include <boost/fusion/sequence/intrinsic/end.hpp>
+#include <boost/fusion/sequence/intrinsic/begin.hpp>
+#include <boost/fusion/sequence/intrinsic/size.hpp>
+#include <boost/fusion/sequence/intrinsic/front.hpp>
+#include <boost/fusion/iterator/advance.hpp>
+#include <boost/fusion/algorithm/transformation/transform.hpp>
+#include <boost/type_traits/remove_reference.hpp>
+#include <boost/type_traits/is_reference.hpp>
+#include <boost/mpl/assert.hpp>
+#include <boost/mpl/min.hpp>
+
+#include <boost/mpl/eval_if.hpp>
+#include <boost/mpl/identity.hpp>
+#include <boost/type_traits/is_same.hpp>
+
+namespace boost { namespace fusion {
+
+    struct zip_view_tag;
+
+    namespace detail
+    {
+        template<typename SeqRef, typename M>
+        struct get_endpoint
+        {
+            typedef typename remove_reference<SeqRef>::type Seq;
+            typedef typename result_of::begin<Seq>::type begin;
+            typedef typename result_of::advance<begin, M>::type type;            
+        };
+
+        template<typename M>
+        struct endpoints
+        {
+            template<typename T>
+            struct result;
+
+            template<typename M1, typename SeqRef>
+            struct result<endpoints<M1>(SeqRef)>
+                : mpl::eval_if<is_same<SeqRef, unused_type const&>,
+                               mpl::identity<unused_type>,
+                               get_endpoint<SeqRef, M> >
+            {
+                BOOST_MPL_ASSERT((is_reference<SeqRef>));
+            };
+
+            template<typename Seq>
+            BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
+            typename result<endpoints(Seq&)>::type
+            operator()(Seq& seq) const
+            {
+                return fusion::advance<M>(fusion::begin(seq));
+            }
+
+            template<typename Seq>
+            BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
+            typename result<endpoints(Seq const&)>::type
+            operator()(Seq const& seq) const
+            {
+                return fusion::advance<M>(fusion::begin(seq));
+            }
+
+            BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
+            unused_type operator()(unused_type const&) const
+            {
+                return unused_type();
+            }
+        };
+    }
+
+    namespace extension
+    {
+        template<typename Tag>
+        struct end_impl;
+
+        template<>
+        struct end_impl<zip_view_tag>
+        {
+            template<typename Sequence>
+            struct apply
+            {
+                typedef zip_view_iterator<
+                    typename result_of::transform<typename Sequence::sequences, detail::endpoints<typename Sequence::size> >::type,
+                    typename Sequence::category> type;
+
+                BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
+                static type
+                call(Sequence& sequence)
+                {
+                    return type(
+                        fusion::transform(sequence.sequences_, detail::endpoints<typename Sequence::size>()));
+                }
+            };
+        };
+    }
+}}
+
+#endif