1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <queue>
11
12// void swap(queue& q);
13
14#include <queue>
15#include <cassert>
16
17template <class C>
18C
19make(int n)
20{
21    C c;
22    for (int i = 0; i < n; ++i)
23        c.push(i);
24    return c;
25}
26
27int main()
28{
29    std::queue<int> q1 = make<std::queue<int> >(5);
30    std::queue<int> q2 = make<std::queue<int> >(10);
31    std::queue<int> q1_save = q1;
32    std::queue<int> q2_save = q2;
33    q1.swap(q2);
34    assert(q1 == q2_save);
35    assert(q2 == q1_save);
36}
37