//===----------------------------------------------------------------------===// | |
// | |
// 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> | |
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; | |
} |