Update to boost 1.72

[lyx.git] / 3rdparty / boost / boost / fusion / container / vector / detail / prior_impl.hpp

diff --git a/3rdparty/boost/boost/fusion/container/vector/detail/prior_impl.hpp b/3rdparty/boost/boost/fusion/container/vector/detail/prior_impl.hpp
new file mode 100644 (file)
index 0000000..4d040d3
--- /dev/null
+++ b/3rdparty/boost/boost/fusion/container/vector/detail/prior_impl.hpp
@@ -0,0 +1,45 @@
+/*=============================================================================
+    Copyright (c) 2001-2011 Joel de Guzman
+
+    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_PRIOR_IMPL_05042005_1145)
+#define FUSION_PRIOR_IMPL_05042005_1145
+
+#include <boost/fusion/support/config.hpp>
+#include <boost/fusion/container/vector/vector_iterator.hpp>
+
+namespace boost { namespace fusion
+{
+    struct vector_iterator_tag;
+    template <typename Vector, int N>
+    struct vector_iterator;
+
+    namespace extension
+    {
+        template <typename Tag>
+        struct prior_impl;
+
+        template <>
+        struct prior_impl<vector_iterator_tag>
+        {
+            template <typename Iterator>
+            struct apply
+            {
+                typedef typename Iterator::vector vector;
+                typedef typename Iterator::index index;
+                typedef vector_iterator<vector, index::value-1> type;
+
+                BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
+                static type
+                call(Iterator const& i)
+                {
+                    return type(i.vec);
+                }
+            };
+        };
+    }
+}}
+
+#endif