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 | // template <class T, class Container> |
12 | // void swap(queue<T, Container>& x, queue<T, Container>& y); |
13 | |
14 | #include <queue> |
15 | #include <cassert> |
16 | |
17 | #include "test_macros.h" |
18 | |
19 | template <class C> |
20 | C |
21 | make(int n) |
22 | { |
23 | C c; |
24 | for (int i = 0; i < n; ++i) |
25 | c.push(i); |
26 | return c; |
27 | } |
28 | |
29 | int main(int, char**) |
30 | { |
31 | std::queue<int> q1 = make<std::queue<int> >(5); |
32 | std::queue<int> q2 = make<std::queue<int> >(10); |
33 | std::queue<int> q1_save = q1; |
34 | std::queue<int> q2_save = q2; |
35 | swap(q1, q2); |
36 | assert(q1 == q2_save); |
37 | assert(q2 == q1_save); |
38 | |
39 | return 0; |
40 | } |
41 | |