1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // type_traits
11 
12 // add_lvalue_reference
13 
14 #include <type_traits>
15 
16 template <class T, class U>
test_add_lvalue_reference()17 void test_add_lvalue_reference()
18 {
19     static_assert((std::is_same<typename std::add_lvalue_reference<T>::type, U>::value), "");
20 #if _LIBCPP_STD_VER > 11
21     static_assert((std::is_same<std::add_lvalue_reference_t<T>, U>::value), "");
22 #endif
23 }
24 
main()25 int main()
26 {
27     test_add_lvalue_reference<void, void>();
28     test_add_lvalue_reference<int, int&>();
29     test_add_lvalue_reference<int[3], int(&)[3]>();
30     test_add_lvalue_reference<int&, int&>();
31     test_add_lvalue_reference<const int&, const int&>();
32     test_add_lvalue_reference<int*, int*&>();
33     test_add_lvalue_reference<const int*, const int*&>();
34 }
35