Index: uspace/lib/cpp/include/internal/type_transformation.hpp
===================================================================
--- uspace/lib/cpp/include/internal/type_transformation.hpp	(revision d275344439f067e46425a91c3091dbb214cc0b30)
+++ uspace/lib/cpp/include/internal/type_transformation.hpp	(revision e9f2f4e228c204f7af951d7c8822da6ebf45a451)
@@ -41,4 +41,9 @@
 namespace std::aux
 {
+    /**
+     * Used by tuple to decay reference wrappers to references
+     * in make_tuple.
+     */
+
     template<class T>
     struct remove_reference_wrapper: type_is<T>