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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <queue>
// const_reference back() const;
#include <queue>
#include <cassert>
#include "test_macros.h"
int main(int, char**) {
std::queue<int> q;
assert(q.size() == 0);
q.push(1);
q.push(2);
q.push(3);
const std::queue<int>& cqr = q;
const int& cir = cqr.back();
assert(cir == 3);
return 0;
}
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