1 // -*- C++ -*- 2 //===----------------------------------------------------------------------===// 3 // 4 // The LLVM Compiler Infrastructure 5 // 6 // This file is dual licensed under the MIT and the University of Illinois Open 7 // Source Licenses. See LICENSE.TXT for details. 8 // 9 //===----------------------------------------------------------------------===// 10 #include <string> 11 #include <cassert> 12 main()13int main() 14 { 15 #if _LIBCPP_STD_VER > 11 16 using namespace std::literals::string_literals; 17 18 std::string foo = ""s; 19 #endif 20 } 21