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 // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 10 11 // <string> 12 13 // template<> struct char_traits<char8_t> 14 15 // static constexpr int_type eof(); 16 17 #include <string> 18 #include <cassert> 19 main()20int main() 21 { 22 #if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L 23 std::char_traits<char8_t>::int_type i = std::char_traits<char8_t>::eof(); 24 ((void)i); // Prevent unused warning 25 #endif 26 } 27