1 // RUN: %clang_cc1 -std=c++17 -verify %s
2 
3 // expected-no-diagnostics
4 
5 template <class T> struct add_restrict {
6   typedef T __restrict type;
7 };
8 
9 template <class T, class V> struct is_same {
10   static constexpr bool value = false;
11 };
12 
13 template <class T> struct is_same<T, T> {
14   static constexpr bool value = true;
15 };
16 
17 static_assert(is_same<int & __restrict, add_restrict<int &>::type>::value, "");
18 static_assert(is_same<int(), add_restrict<int()>::type>::value, "");
19