From 8b15aee1a1a03053feda29e4703bba2f55bbce43 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

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@263659 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/type_traits | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/type_traits b/include/type_traits
index 47f9334a5..29228395f 100644
--- a/include/type_traits
+++ b/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>