llvm-project

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
// <set>
10

11
// class multiset
12

13
// bool empty() const noexcept;
14

15
// UNSUPPORTED: c++03, c++11, c++14, c++17
16

17
#include <set>
18

19
void f() {
20
    std::multiset<int> c;
21
    c.empty(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
22
}
23