40 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 pop();12 13#include <queue>14#include <cassert>15 16#include "test_macros.h"17 18int main(int, char**) {19 std::queue<int> q;20 assert(q.size() == 0);21 q.push(1);22 q.push(2);23 q.push(3);24 assert(q.size() == 3);25 assert(q.front() == 1);26 assert(q.back() == 3);27 q.pop();28 assert(q.size() == 2);29 assert(q.front() == 2);30 assert(q.back() == 3);31 q.pop();32 assert(q.size() == 1);33 assert(q.front() == 3);34 assert(q.back() == 3);35 q.pop();36 assert(q.size() == 0);37 38 return 0;39}40