From c32ee0476b7643bf92efcd3b3763b3d625544b9f Mon Sep 17 00:00:00 2001
From: Eric Fiselier <eric@efcs.ca>
Date: Wed, 16 Mar 2016 20:32:07 +0000
Subject: [PATCH] Add __unconstref for future use

llvm-svn: 263659
---
 libcxx/include/type_traits | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libcxx/include/type_traits b/libcxx/include/type_traits
index 47f9334..2922839 100644
--- a/libcxx/include/type_traits
+++ b/libcxx/include/type_traits
@@ -1072,6 +1072,11 @@ struct __uncvref  {
     typedef typename remove_cv<typename remove_reference<_Tp>::type>::type type;
 };
 
+template <class _Tp>
+struct __unconstref {
+    typedef typename remove_const<typename remove_reference<_Tp>::type>::type type;
+};
+
 // __is_same_uncvref
 
 template <class _Tp, class _Up>
-- 
2.7.4