|  | //===----------------------------------------------------------------------===// | 
|  | // | 
|  | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | 
|  | // See https://llvm.org/LICENSE.txt for license information. | 
|  | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | // UNSUPPORTED: c++03, c++11 | 
|  |  | 
|  | #include <string> | 
|  |  | 
|  | void f() { | 
|  | { | 
|  | using std::string; | 
|  | string foo = ""s; // expected-error {{no matching literal operator}} | 
|  | } | 
|  | { | 
|  | std::string foo = ""s; // expected-error {{no matching literal operator}} | 
|  | } | 
|  | } |