| Marshall Clow | 25a7ba4 | 2017-11-15 20:02:27 +0000 | [diff] [blame] | 1 | // -*- C++ -*- |
| 2 | //===----------------------------------------------------------------------===// |
| 3 | // |
| Chandler Carruth | 57b08b0 | 2019-01-19 10:56:40 +0000 | [diff] [blame] | 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 5 | // See https://llvm.org/LICENSE.txt for license information. |
| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| Marshall Clow | 25a7ba4 | 2017-11-15 20:02:27 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // <string_view> |
| 11 | |
| 12 | // class string_view |
| 13 | |
| 14 | // bool empty() const noexcept; |
| 15 | |
| 16 | // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 |
| 17 | // UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8 |
| 18 | |
| 19 | #include <string_view> |
| 20 | |
| 21 | #include "test_macros.h" |
| 22 | |
| 23 | int main () |
| 24 | { |
| 25 | std::string_view c; |
| 26 | c.empty(); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}} |
| 27 | } |