37 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// <queue>10 11// void swap(queue& q);12 13#include <queue>14#include <cassert>15 16#include "test_macros.h"17 18template <class C>19C make(int n) {20 C c;21 for (int i = 0; i < n; ++i)22 c.push(i);23 return c;24}25 26int main(int, char**) {27 std::queue<int> q1 = make<std::queue<int> >(5);28 std::queue<int> q2 = make<std::queue<int> >(10);29 std::queue<int> q1_save = q1;30 std::queue<int> q2_save = q2;31 q1.swap(q2);32 assert(q1 == q2_save);33 assert(q2 == q1_save);34 35 return 0;36}37