1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <filesystem>
10
11// class path
12
13// bool empty() const noexcept;
14
15// UNSUPPORTED: c++03, c++11, c++14, c++17
16// UNSUPPORTED: availability-filesystem-missing
17
18#include <filesystem>
19namespace fs = std::filesystem;
20
21void f() {
22 fs::path c;
23 c.empty(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
24}
25

source code of libcxx/test/std/input.output/filesystems/class.path/path.member/path.decompose/empty.verify.cpp