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 swap(queue& q);
12
13#include <queue>
14#include <cassert>
15
16#include "test_macros.h"
17
18template <class C>
19C
20make(int n)
21{
22 C c;
23 for (int i = 0; i < n; ++i)
24 c.push(i);
25 return c;
26}
27
28int main(int, char**)
29{
30 std::queue<int> q1 = make<std::queue<int> >(5);
31 std::queue<int> q2 = make<std::queue<int> >(10);
32 std::queue<int> q1_save = q1;
33 std::queue<int> q2_save = q2;
34 q1.swap(q2);
35 assert(q1 == q2_save);
36 assert(q2 == q1_save);
37
38 return 0;
39}
40

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