empty.verify.cpp
709 Bytes
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <set>
// class multiset
// bool empty() const noexcept;
// UNSUPPORTED: c++03, c++11, c++14, c++17
#include <set>
#include "test_macros.h"
int main(int, char**)
{
std::multiset<int> c;
c.empty(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}}
return 0;
}