Updated boost to v1.55.0

[rsem.git] / boost / fusion / view / single_view / single_view.hpp

diff --git a/boost/fusion/view/single_view/single_view.hpp b/boost/fusion/view/single_view/single_view.hpp
new file mode 100644 (file)
index 0000000..5e7e5ab
--- /dev/null
+++ b/boost/fusion/view/single_view/single_view.hpp
@@ -0,0 +1,68 @@
+/*=============================================================================
+    Copyright (c) 2001-2011 Joel de Guzman
+    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_SINGLE_VIEW_05052005_0335)
+#define BOOST_FUSION_SINGLE_VIEW_05052005_0335
+
+#include <boost/fusion/support/detail/access.hpp>
+#include <boost/fusion/support/detail/as_fusion_element.hpp>
+#include <boost/fusion/support/sequence_base.hpp>
+#include <boost/fusion/view/single_view/single_view_iterator.hpp>
+#include <boost/fusion/view/single_view/detail/at_impl.hpp>
+#include <boost/fusion/view/single_view/detail/begin_impl.hpp>
+#include <boost/fusion/view/single_view/detail/end_impl.hpp>
+#include <boost/fusion/view/single_view/detail/size_impl.hpp>
+#include <boost/fusion/view/single_view/detail/value_at_impl.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/int.hpp>
+#include <boost/config.hpp>
+
+#if defined (BOOST_MSVC)
+#  pragma warning(push)
+#  pragma warning (disable: 4512) // assignment operator could not be generated.
+#endif
+
+namespace boost { namespace fusion
+{
+    struct single_view_tag;
+    struct random_access_traversal_tag;
+    struct fusion_sequence_tag;
+
+    template <typename T>
+    struct single_view : sequence_base<single_view<T> >
+    {
+        typedef single_view_tag fusion_tag;
+        typedef fusion_sequence_tag tag; // this gets picked up by MPL
+        typedef random_access_traversal_tag category;
+        typedef mpl::true_ is_view;
+        typedef mpl::int_<1> size;
+        typedef T value_type;
+
+        single_view()
+            : val() {}
+
+        explicit single_view(typename detail::call_param<T>::type in_val)
+            : val(in_val) {}
+
+        value_type val;
+    };
+    
+    template <typename T>
+    inline single_view<typename detail::as_fusion_element<T>::type>
+    make_single_view(T const& v)
+    {
+        return single_view<typename detail::as_fusion_element<T>::type>(v);
+    }
+}}
+
+#if defined (BOOST_MSVC)
+#  pragma warning(pop)
+#endif
+
+#endif
+
+