2 //===----------------------------------------------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
15 #if _LIBCPP_STD_VER > 11
16 using namespace std::literals::string_literals
;
18 std::string foo
= ""s
;