[committed] libstdc++: Hide std::tuple internals from Doxygen docs

[Jonathan Wakely]

Pushed to trunk.

-- >8 --

libstdc++-v3/ChangeLog:

        * include/std/tuple: Do not include implementation details in
        Doxygen documentation.
---
 libstdc++-v3/include/std/tuple | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libstdc++-v3/include/std/tuple b/libstdc++-v3/include/std/tuple
index 93b649e7d21..70cf4dba7b9 100644
--- a/libstdc++-v3/include/std/tuple
+++ b/libstdc++-v3/include/std/tuple
@@ -66,6 +66,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   template<typename... _Elements>
     class tuple;
 
+  /// @cond undocumented
   template<typename _Tp>
     struct __is_empty_non_tuple : is_empty<_Tp> { };
 
@@ -823,6 +824,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
        static constexpr bool __is_explicitly_constructible()
        { return false; }
     };
+  /// @endcond
 
   /// Primary class template, tuple
   template<typename... _Elements>
-- 
2.46.0