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Diffstat (limited to 'libstdc++-v3/include/tr1/type_traits_fwd.h')
-rw-r--r--libstdc++-v3/include/tr1/type_traits_fwd.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/libstdc++-v3/include/tr1/type_traits_fwd.h b/libstdc++-v3/include/tr1/type_traits_fwd.h
index 738e67cd1d6..2d25d9b4c14 100644
--- a/libstdc++-v3/include/tr1/type_traits_fwd.h
+++ b/libstdc++-v3/include/tr1/type_traits_fwd.h
@@ -103,6 +103,10 @@ namespace tr1
template<typename _Tp>
struct is_member_pointer;
+
+ // Extension.
+ template<typename _Tp>
+ struct __is_union_or_class;
/// @brief type properties [4.5.3].
template<typename _Tp>