| 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 | // priority_queue(); |
| 12 | |
| 13 | // template <class T, class Container, class Compare> |
| 14 | // void swap(priority_queue<T, Container, Compare>& x, |
| 15 | // priority_queue<T, Container, Compare>& y); |
| 16 | |
| 17 | #include <queue> |
| 18 | #include <cassert> |
| 19 | |
| 20 | #include "test_macros.h" |
| 21 | |
| 22 | TEST_CONSTEXPR_CXX26 bool test() { |
| 23 | std::priority_queue<int> q1; |
| 24 | std::priority_queue<int> q2; |
| 25 | q1.push(1); |
| 26 | q1.push(3); |
| 27 | q1.push(2); |
| 28 | swap(q1, q2); |
| 29 | assert(q1.empty()); |
| 30 | assert(q2.size() == 3); |
| 31 | assert(q2.top() == 3); |
| 32 | |
| 33 | return true; |
| 34 | } |
| 35 | |
| 36 | int main(int, char**) { |
| 37 | assert(test()); |
| 38 | #if TEST_STD_VER >= 26 |
| 39 | static_assert(test()); |
| 40 | #endif |
| 41 | |
| 42 | return 0; |
| 43 | } |
| 44 | |