Updated boost to v1.55.0

[rsem.git] / boost / fusion / view / iterator_range / detail / segments_impl.hpp

diff --git a/boost/fusion/view/iterator_range/detail/segments_impl.hpp b/boost/fusion/view/iterator_range/detail/segments_impl.hpp
new file mode 100644 (file)
index 0000000..ede4968
--- /dev/null
+++ b/boost/fusion/view/iterator_range/detail/segments_impl.hpp
@@ -0,0 +1,52 @@
+/*=============================================================================
+    Copyright (c) 2011 Eric Niebler
+
+    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(BOOST_FUSION_ITERATOR_RANGE_SEGMENTS_HPP_INCLUDED)
+#define BOOST_FUSION_ITERATOR_RANGE_SEGMENTS_HPP_INCLUDED
+
+#include <boost/mpl/assert.hpp>
+#include <boost/fusion/sequence/intrinsic/segments.hpp>
+#include <boost/fusion/support/is_segmented.hpp>
+#include <boost/fusion/view/iterator_range/detail/segmented_iterator_range.hpp>
+
+namespace boost { namespace fusion
+{
+    struct iterator_range_tag;
+
+    namespace extension
+    {
+        template <typename Tag>
+        struct segments_impl;
+
+        template <>
+        struct segments_impl<iterator_range_tag>
+        {
+            template <typename Sequence>
+            struct apply
+            {
+                typedef
+                    detail::make_segmented_range<
+                        typename Sequence::begin_type
+                      , typename Sequence::end_type
+                    >
+                impl;
+
+                BOOST_MPL_ASSERT((traits::is_segmented<typename impl::type>));
+
+                typedef
+                    typename result_of::segments<typename impl::type>::type
+                type;
+
+                static type call(Sequence & seq)
+                {
+                    return fusion::segments(impl::call(seq.first, seq.last));
+                }
+            };
+        };
+    }
+}}
+
+#endif