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 // <string>
11 
12 // template<> struct char_traits<wchar_t>
13 
14 // static constexpr char_type to_char_type(int_type c);
15 
16 #include <string>
17 #include <cassert>
18 
main()19 int main()
20 {
21     assert(std::char_traits<wchar_t>::to_char_type(L'a') == L'a');
22     assert(std::char_traits<wchar_t>::to_char_type(L'A') == L'A');
23     assert(std::char_traits<wchar_t>::to_char_type(0) == 0);
24 }
25