| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <queue> |
| |
| // priority_queue(); |
| |
| // template <class T, class Container, class Compare> |
| // void swap(priority_queue<T, Container, Compare>& x, |
| // priority_queue<T, Container, Compare>& y); |
| |
| #include <queue> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| |
| int main(int, char**) |
| { |
| std::priority_queue<int> q1; |
| std::priority_queue<int> q2; |
| q1.push(1); |
| q1.push(3); |
| q1.push(2); |
| swap(q1, q2); |
| assert(q1.empty()); |
| assert(q2.size() == 3); |
| assert(q2.top() == 3); |
| |
| return 0; |
| } |