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// bool empty() const;
13
14#include <queue>
15#include <cassert>
16
17int main()
18{
19    std::queue<int> q;
20    assert(q.empty());
21    q.push(1);
22    assert(!q.empty());
23    q.pop();
24    assert(q.empty());
25}
26