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-rw-r--r--boost/fusion/support/is_view.hpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/boost/fusion/support/is_view.hpp b/boost/fusion/support/is_view.hpp
index a6ca725946..b2b52c423e 100644
--- a/boost/fusion/support/is_view.hpp
+++ b/boost/fusion/support/is_view.hpp
@@ -14,6 +14,7 @@
namespace boost { namespace fusion
{
// Special tags:
+ struct non_fusion_tag;
struct sequence_facade_tag;
struct boost_tuple_tag; // boost::tuples::tuple tag
struct boost_array_tag; // boost::array tag
@@ -33,6 +34,13 @@ namespace boost { namespace fusion
};
template <>
+ struct is_view_impl<non_fusion_tag>
+ {
+ template <typename T>
+ struct apply : mpl::false_ {};
+ };
+
+ template <>
struct is_view_impl<sequence_facade_tag>
{
template <typename Sequence>