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// <queue>
10
11// void pop();
12
13#include <queue>
14#include <cassert>
15
16#include "test_macros.h"
17
18int main(int, char**)
19{
20 std::queue<int> q;
21 assert(q.size() == 0);
22 q.push(1);
23 q.push(2);
24 q.push(3);
25 assert(q.size() == 3);
26 assert(q.front() == 1);
27 assert(q.back() == 3);
28 q.pop();
29 assert(q.size() == 2);
30 assert(q.front() == 2);
31 assert(q.back() == 3);
32 q.pop();
33 assert(q.size() == 1);
34 assert(q.front() == 3);
35 assert(q.back() == 3);
36 q.pop();
37 assert(q.size() == 0);
38
39 return 0;
40}
41

source code of libcxx/test/std/containers/container.adaptors/queue/queue.defn/pop.pass.cpp