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 // bool empty() const noexcept;
17 // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
18 // UNSUPPORTED: clang-3.3, clang-3.4, clang-3.5, clang-3.6, clang-3.7, clang-3.8
22 #include "test_macros.h"
27 c.empty(); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}}