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      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>
     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 
     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