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// priority_queue();
13
14// void pop();
15
16#include <queue>
17#include <cassert>
18
19int main()
20{
21    std::priority_queue<int> q;
22    q.push(1);
23    assert(q.top() == 1);
24    q.push(3);
25    assert(q.top() == 3);
26    q.push(2);
27    assert(q.top() == 3);
28    q.pop();
29    assert(q.top() == 2);
30    q.pop();
31    assert(q.top() == 1);
32    q.pop();
33    assert(q.empty());
34}
35